./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3231874689 <...> Warning: Permanently added '10.128.1.233' (ED25519) to the list of known hosts. execve("./syz-executor3231874689", ["./syz-executor3231874689"], 0x7fff8f43b460 /* 10 vars */) = 0 brk(NULL) = 0x5555947fb000 brk(0x5555947fbd00) = 0x5555947fbd00 arch_prctl(ARCH_SET_FS, 0x5555947fb380) = 0 set_tid_address(0x5555947fb650) = 5865 set_robust_list(0x5555947fb660, 24) = 0 rseq(0x5555947fbca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3231874689", 4096) = 28 getrandom("\xb8\x78\x25\xde\x91\xc7\x26\x6a", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555947fbd00 brk(0x55559481cd00) = 0x55559481cd00 brk(0x55559481d000) = 0x55559481d000 mprotect(0x7ff5f2ce7000, 16384, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 [ 91.996931][ T981] cfg80211: failed to load regulatory.db mkdir("/syzcgroup", 0777) = 0 mkdir("/syzcgroup/unified", 0777) = 0 mount("none", "/syzcgroup/unified", "cgroup2", 0, NULL) = 0 chmod("/syzcgroup/unified", 0777) = 0 openat(AT_FDCWD, "/syzcgroup/unified/cgroup.subtree_control", O_WRONLY) = 3 write(3, "+cpu", 4) = 4 write(3, "+io", 3) = 3 write(3, "+pids", 5) = 5 close(3) = 0 mkdir("/syzcgroup/net", 0777) = 0 mount("none", "/syzcgroup/net", "cgroup", 0, "net") = -1 EINVAL (Invalid argument) mount("none", "/syzcgroup/net", "cgroup", 0, "net_prio") = 0 umount2("/syzcgroup/net", 0) = 0 mount("none", "/syzcgroup/net", "cgroup", 0, "devices") = 0 [ 92.167252][ T5865] cgroup: Unknown subsys name 'net' umount2("/syzcgroup/net", 0) = 0 mount("none", "/syzcgroup/net", "cgroup", 0, "blkio") = 0 umount2("/syzcgroup/net", 0) = 0 mount("none", "/syzcgroup/net", "cgroup", 0, "freezer") = 0 umount2("/syzcgroup/net", 0) = 0 mount("none", "/syzcgroup/net", "cgroup", 0, "net_prio,devices,blkio,freezer") = ? ERESTARTNOINTR (To be restarted) mount("none", "/syzcgroup/net", "cgroup", 0, "net_prio,devices,blkio,freezer") = ? ERESTARTNOINTR (To be restarted) mount("none", "/syzcgroup/net", "cgroup", 0, "net_prio,devices,blkio,freezer") = ? ERESTARTNOINTR (To be restarted) mount("none", "/syzcgroup/net", "cgroup", 0, "net_prio,devices,blkio,freezer") = ? ERESTARTNOINTR (To be restarted) mount("none", "/syzcgroup/net", "cgroup", 0, "net_prio,devices,blkio,freezer") = 0 chmod("/syzcgroup/net", 0777) = 0 mkdir("/syzcgroup/cpu", 0777) = 0 mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuset") = -1 EINVAL (Invalid argument) mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuacct") = 0 umount2("/syzcgroup/cpu", 0) = 0 mount("none", "/syzcgroup/cpu", "cgroup", 0, "hugetlb") = 0 umount2("/syzcgroup/cpu", 0) = 0 mount("none", "/syzcgroup/cpu", "cgroup", 0, "rlimit") = -1 EINVAL (Invalid argument) mount("none", "/syzcgroup/cpu", "cgroup", 0, "memory") = 0 umount2("/syzcgroup/cpu", 0) = 0 mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuacct,hugetlb,memory") = ? ERESTARTNOINTR (To be restarted) [ 92.343581][ T5865] cgroup: Unknown subsys name 'cpuset' [ 92.376992][ T5865] cgroup: Unknown subsys name 'rlimit' mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuacct,hugetlb,memory") = ? ERESTARTNOINTR (To be restarted) mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuacct,hugetlb,memory") = ? ERESTARTNOINTR (To be restarted) mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuacct,hugetlb,memory") = ? ERESTARTNOINTR (To be restarted) mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuacct,hugetlb,memory") = 0 chmod("/syzcgroup/cpu", 0777) = 0 openat(AT_FDCWD, "/syzcgroup/cpu/cgroup.clone_children", O_WRONLY|O_CLOEXEC) = 3 write(3, "1", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/syzcgroup/cpu/cpuset.memory_pressure_enabled", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5868 attached , child_tidptr=0x5555947fb650) = 5868 [pid 5868] set_robust_list(0x5555947fb660, 24) = 0 [pid 5865] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5868] mkdir("./syzkaller.2WQhTF", 0700) = 0 ./strace-static-x86_64: Process 5869 attached [pid 5868] chmod("./syzkaller.2WQhTF", 0777 [pid 5865] <... clone resumed>, child_tidptr=0x5555947fb650) = 5869 [pid 5869] set_robust_list(0x5555947fb660, 24 [pid 5865] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5869] <... set_robust_list resumed>) = 0 [pid 5868] <... chmod resumed>) = 0 [pid 5868] chdir("./syzkaller.2WQhTF"./strace-static-x86_64: Process 5870 attached [pid 5869] mkdir("./syzkaller.SrzucY", 0700 [pid 5868] <... chdir resumed>) = 0 [pid 5865] <... clone resumed>, child_tidptr=0x5555947fb650) = 5870 [pid 5868] unshare(CLONE_NEWPID [pid 5865] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5870] set_robust_list(0x5555947fb660, 24) = 0 [pid 5869] <... mkdir resumed>) = 0 [pid 5870] mkdir("./syzkaller.q9mDEo", 0700 [pid 5868] <... unshare resumed>) = 0 [pid 5869] chmod("./syzkaller.SrzucY", 0777) = 0 ./strace-static-x86_64: Process 5871 attached [pid 5870] <... mkdir resumed>) = 0 [pid 5868] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5865] <... clone resumed>, child_tidptr=0x5555947fb650) = 5871 [pid 5871] set_robust_list(0x5555947fb660, 24 [pid 5870] chmod("./syzkaller.q9mDEo", 0777 [pid 5869] chdir("./syzkaller.SrzucY" [pid 5865] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5871] <... set_robust_list resumed>) = 0 [pid 5871] mkdir("./syzkaller.eicd8W", 0700 [pid 5869] <... chdir resumed>) = 0 ./strace-static-x86_64: Process 5873 attached ./strace-static-x86_64: Process 5872 attached [pid 5870] <... chmod resumed>) = 0 [pid 5869] unshare(CLONE_NEWPID [pid 5865] <... clone resumed>, child_tidptr=0x5555947fb650) = 5872 [pid 5873] set_robust_list(0x5555947fb660, 24 [pid 5872] set_robust_list(0x5555947fb660, 24 [pid 5870] chdir("./syzkaller.q9mDEo" [pid 5869] <... unshare resumed>) = 0 [pid 5868] <... clone resumed>, child_tidptr=0x5555947fb650) = 5873 [pid 5873] <... set_robust_list resumed>) = 0 [pid 5872] <... set_robust_list resumed>) = 0 [pid 5871] <... mkdir resumed>) = 0 [pid 5870] <... chdir resumed>) = 0 [pid 5869] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5873] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5872] getrandom( [pid 5870] unshare(CLONE_NEWPID) = 0 [pid 5870] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5873] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 5874 attached [pid 5872] <... getrandom resumed>"\x62\x38\x13\x4f\x2a\x31\xac\xa6", 8, GRND_NONBLOCK) = 8 [pid 5871] chmod("./syzkaller.eicd8W", 0777 [pid 5874] set_robust_list(0x5555947fb660, 24 [pid 5873] getppid( [pid 5871] <... chmod resumed>) = 0 [pid 5874] <... set_robust_list resumed>) = 0 [pid 5873] <... getppid resumed>) = 0 [pid 5874] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5872] mkdir("./syzkaller.wO9Bew", 0700 [pid 5871] chdir("./syzkaller.eicd8W" [pid 5869] <... clone resumed>, child_tidptr=0x5555947fb650) = 5874 ./strace-static-x86_64: Process 5875 attached [pid 5874] <... prctl resumed>) = 0 [pid 5873] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, [pid 5871] <... chdir resumed>) = 0 [pid 5875] set_robust_list(0x5555947fb660, 24 [pid 5874] getppid( [pid 5873] <... prlimit64 resumed>NULL) = 0 [pid 5872] <... mkdir resumed>) = 0 [pid 5871] unshare(CLONE_NEWPID [pid 5870] <... clone resumed>, child_tidptr=0x5555947fb650) = 5875 [pid 5875] <... set_robust_list resumed>) = 0 [pid 5874] <... getppid resumed>) = 0 [pid 5873] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, [pid 5872] chmod("./syzkaller.wO9Bew", 0777 [pid 5871] <... unshare resumed>) = 0 [pid 5875] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5874] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, [pid 5873] <... prlimit64 resumed>NULL) = 0 [pid 5872] <... chmod resumed>) = 0 [pid 5871] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5875] <... prctl resumed>) = 0 [pid 5874] <... prlimit64 resumed>NULL) = 0 [pid 5873] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, ./strace-static-x86_64: Process 5876 attached [pid 5875] getppid( [pid 5874] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, [pid 5873] <... prlimit64 resumed>NULL) = 0 [pid 5872] chdir("./syzkaller.wO9Bew" [pid 5876] set_robust_list(0x5555947fb660, 24 [pid 5875] <... getppid resumed>) = 0 [pid 5874] <... prlimit64 resumed>NULL) = 0 [pid 5873] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, [pid 5872] <... chdir resumed>) = 0 [pid 5876] <... set_robust_list resumed>) = 0 [pid 5874] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, [pid 5872] unshare(CLONE_NEWPID [pid 5871] <... clone resumed>, child_tidptr=0x5555947fb650) = 5876 [pid 5876] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5875] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, [pid 5874] <... prlimit64 resumed>NULL) = 0 [pid 5873] <... prlimit64 resumed>NULL) = 0 [pid 5872] <... unshare resumed>) = 0 [pid 5876] <... prctl resumed>) = 0 [pid 5875] <... prlimit64 resumed>NULL) = 0 [pid 5874] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, [pid 5873] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, [pid 5872] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5876] getppid( [pid 5875] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, [pid 5874] <... prlimit64 resumed>NULL) = 0 [pid 5873] <... prlimit64 resumed>NULL) = 0 [pid 5876] <... getppid resumed>) = 0 [pid 5876] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, [pid 5874] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, [pid 5876] <... prlimit64 resumed>NULL) = 0 [pid 5875] <... prlimit64 resumed>NULL) = 0 [pid 5873] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, [pid 5876] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, [pid 5875] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, [pid 5872] <... clone resumed>, child_tidptr=0x5555947fb650) = 5877 [pid 5876] <... prlimit64 resumed>NULL) = 0 [pid 5875] <... prlimit64 resumed>NULL) = 0 [pid 5876] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, [pid 5875] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, [pid 5876] <... prlimit64 resumed>NULL) = 0 [pid 5875] <... prlimit64 resumed>NULL) = 0 ./strace-static-x86_64: Process 5877 attached [pid 5876] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, [pid 5875] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, [pid 5874] <... prlimit64 resumed>NULL) = 0 [pid 5873] <... prlimit64 resumed>NULL) = 0 [pid 5874] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, [pid 5877] set_robust_list(0x5555947fb660, 24 [pid 5874] <... prlimit64 resumed>NULL) = 0 [pid 5873] unshare(CLONE_NEWNS [pid 5877] <... set_robust_list resumed>) = 0 [pid 5876] <... prlimit64 resumed>NULL) = 0 [pid 5875] <... prlimit64 resumed>NULL) = 0 [pid 5876] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, [pid 5875] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, [pid 5876] <... prlimit64 resumed>NULL) = 0 [pid 5875] <... prlimit64 resumed>NULL) = 0 [pid 5876] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, [pid 5875] unshare(CLONE_NEWNS [pid 5877] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5876] <... prlimit64 resumed>NULL) = 0 [pid 5875] <... unshare resumed>) = 0 [pid 5874] unshare(CLONE_NEWNS [pid 5873] <... unshare resumed>) = 0 [pid 5876] unshare(CLONE_NEWNS) = 0 [pid 5875] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL [pid 5877] <... prctl resumed>) = 0 [pid 5876] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL [pid 5877] getppid( [pid 5875] <... mount resumed>) = 0 [pid 5874] <... unshare resumed>) = 0 [pid 5873] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL [pid 5877] <... getppid resumed>) = 0 [pid 5876] <... mount resumed>) = 0 [pid 5875] unshare(CLONE_NEWIPC [pid 5874] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL [pid 5873] <... mount resumed>) = 0 [pid 5877] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, [pid 5876] unshare(CLONE_NEWIPC [pid 5875] <... unshare resumed>) = 0 [pid 5874] <... mount resumed>) = 0 [pid 5877] <... prlimit64 resumed>NULL) = 0 [pid 5873] unshare(CLONE_NEWIPC [pid 5877] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, [pid 5876] <... unshare resumed>) = 0 [pid 5875] unshare(CLONE_NEWCGROUP [pid 5874] unshare(CLONE_NEWIPC [pid 5877] <... prlimit64 resumed>NULL) = 0 [pid 5876] unshare(CLONE_NEWCGROUP [pid 5875] <... unshare resumed>) = 0 [pid 5874] <... unshare resumed>) = 0 [pid 5876] <... unshare resumed>) = 0 [pid 5875] unshare(CLONE_NEWUTS) = 0 [pid 5876] unshare(CLONE_NEWUTS [pid 5875] unshare(CLONE_SYSVSEM [pid 5876] <... unshare resumed>) = 0 [pid 5875] <... unshare resumed>) = 0 [pid 5877] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, [pid 5876] unshare(CLONE_SYSVSEM [pid 5875] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC [pid 5874] unshare(CLONE_NEWCGROUP [pid 5873] <... unshare resumed>) = 0 [pid 5877] <... prlimit64 resumed>NULL) = 0 [pid 5876] <... unshare resumed>) = 0 [pid 5877] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, [pid 5875] <... openat resumed>) = 3 [pid 5874] <... unshare resumed>) = 0 [pid 5873] unshare(CLONE_NEWCGROUP [pid 5876] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC [pid 5877] <... prlimit64 resumed>NULL) = 0 [pid 5873] <... unshare resumed>) = 0 [pid 5877] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, [pid 5874] unshare(CLONE_NEWUTS [pid 5873] unshare(CLONE_NEWUTS [pid 5877] <... prlimit64 resumed>NULL) = 0 [pid 5874] <... unshare resumed>) = 0 [pid 5873] <... unshare resumed>) = 0 [pid 5877] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, [pid 5874] unshare(CLONE_SYSVSEM [pid 5873] unshare(CLONE_SYSVSEM [pid 5877] <... prlimit64 resumed>NULL) = 0 [pid 5874] <... unshare resumed>) = 0 [pid 5877] unshare(CLONE_NEWNS [pid 5873] <... unshare resumed>) = 0 [pid 5876] <... openat resumed>) = 3 [pid 5875] write(3, "16777216", 8 [pid 5877] <... unshare resumed>) = 0 [pid 5875] <... write resumed>) = 8 [pid 5875] close(3) = 0 [pid 5873] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC [pid 5875] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC [pid 5874] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC [pid 5877] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL [pid 5876] write(3, "16777216", 8 [pid 5875] <... openat resumed>) = 3 [pid 5873] <... openat resumed>) = 3 [pid 5876] <... write resumed>) = 8 [pid 5874] <... openat resumed>) = 3 [pid 5873] write(3, "16777216", 8 [pid 5876] close(3 [pid 5877] <... mount resumed>) = 0 [pid 5876] <... close resumed>) = 0 [pid 5874] write(3, "16777216", 8 [pid 5873] <... write resumed>) = 8 [pid 5874] <... write resumed>) = 8 [pid 5877] unshare(CLONE_NEWIPC [pid 5876] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC [pid 5875] write(3, "536870912", 9 [pid 5873] close(3 [pid 5877] <... unshare resumed>) = 0 [pid 5876] <... openat resumed>) = 3 [pid 5875] <... write resumed>) = 9 [pid 5874] close(3 [pid 5873] <... close resumed>) = 0 [pid 5877] unshare(CLONE_NEWCGROUP [pid 5874] <... close resumed>) = 0 [pid 5873] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC [pid 5876] write(3, "536870912", 9 [pid 5875] close(3 [pid 5877] <... unshare resumed>) = 0 [pid 5876] <... write resumed>) = 9 [pid 5875] <... close resumed>) = 0 [pid 5874] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC [pid 5873] <... openat resumed>) = 3 [pid 5876] close(3 [pid 5875] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC [pid 5877] unshare(CLONE_NEWUTS [pid 5876] <... close resumed>) = 0 [pid 5875] <... openat resumed>) = 3 [pid 5874] <... openat resumed>) = 3 [pid 5873] write(3, "536870912", 9 [pid 5877] <... unshare resumed>) = 0 [pid 5876] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC [pid 5873] <... write resumed>) = 9 [pid 5877] unshare(CLONE_SYSVSEM [pid 5874] write(3, "536870912", 9 [pid 5877] <... unshare resumed>) = 0 [pid 5873] close(3 [pid 5874] <... write resumed>) = 9 [pid 5877] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC [pid 5876] <... openat resumed>) = 3 [pid 5875] write(3, "1024", 4 [pid 5874] close(3 [pid 5873] <... close resumed>) = 0 [pid 5876] write(3, "1024", 4 [pid 5875] <... write resumed>) = 4 [pid 5876] <... write resumed>) = 4 [pid 5875] close(3 [pid 5876] close(3 [pid 5875] <... close resumed>) = 0 [pid 5876] <... close resumed>) = 0 [pid 5875] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC [pid 5877] <... openat resumed>) = 3 [pid 5876] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC [pid 5875] <... openat resumed>) = 3 [pid 5874] <... close resumed>) = 0 [pid 5873] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC [pid 5876] <... openat resumed>) = 3 [pid 5873] <... openat resumed>) = 3 [pid 5877] write(3, "16777216", 8 [pid 5876] write(3, "8192", 4 [pid 5875] write(3, "8192", 4 [pid 5874] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC [pid 5873] write(3, "1024", 4 [pid 5877] <... write resumed>) = 8 [pid 5876] <... write resumed>) = 4 [pid 5875] <... write resumed>) = 4 [pid 5877] close(3 [pid 5876] close(3 [pid 5875] close(3 [pid 5874] <... openat resumed>) = 3 [pid 5873] <... write resumed>) = 4 [pid 5877] <... close resumed>) = 0 [pid 5876] <... close resumed>) = 0 [pid 5875] <... close resumed>) = 0 [pid 5876] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC [pid 5875] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC [pid 5877] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC [pid 5875] <... openat resumed>) = 3 [pid 5874] write(3, "1024", 4 [pid 5873] close(3 [pid 5876] <... openat resumed>) = 3 [pid 5874] <... write resumed>) = 4 [pid 5873] <... close resumed>) = 0 [pid 5876] write(3, "1024", 4 [pid 5873] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC [pid 5874] close(3 [pid 5876] <... write resumed>) = 4 [pid 5876] close(3 [pid 5875] write(3, "1024", 4 [pid 5877] <... openat resumed>) = 3 [pid 5876] <... close resumed>) = 0 [pid 5875] <... write resumed>) = 4 [pid 5873] <... openat resumed>) = 3 [pid 5877] write(3, "536870912", 9 [pid 5874] <... close resumed>) = 0 [pid 5877] <... write resumed>) = 9 [pid 5876] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC [pid 5875] close(3 [pid 5874] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC [pid 5873] write(3, "8192", 4 [pid 5877] close(3 [pid 5876] <... openat resumed>) = 3 [pid 5875] <... close resumed>) = 0 [pid 5875] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5874] <... openat resumed>) = 3 [pid 5877] <... close resumed>) = 0 [pid 5876] write(3, "1024", 4 [pid 5874] write(3, "8192", 4 [pid 5873] <... write resumed>) = 4 [pid 5876] <... write resumed>) = 4 [pid 5875] write(3, "1024", 4 [pid 5876] close(3 [pid 5875] <... write resumed>) = 4 [pid 5876] <... close resumed>) = 0 [pid 5875] close(3 [pid 5876] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC [pid 5875] <... close resumed>) = 0 [pid 5876] <... openat resumed>) = 3 [pid 5875] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC [pid 5877] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC [pid 5875] <... openat resumed>) = 3 [pid 5877] <... openat resumed>) = 3 [pid 5876] write(3, "1024 1048576 500 1024", 21 [pid 5874] <... write resumed>) = 4 [pid 5873] close(3 [pid 5876] <... write resumed>) = 21 [pid 5875] write(3, "1024 1048576 500 1024", 21 [pid 5874] close(3 [pid 5873] <... close resumed>) = 0 [pid 5877] write(3, "1024", 4 [pid 5876] close(3 [pid 5875] <... write resumed>) = 21 [pid 5874] <... close resumed>) = 0 [pid 5877] <... write resumed>) = 4 [pid 5876] <... close resumed>) = 0 [pid 5875] close(3 [pid 5874] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC [pid 5873] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC [pid 5877] close(3 [pid 5876] getpid( [pid 5875] <... close resumed>) = 0 [pid 5876] <... getpid resumed>) = 1 [pid 5875] getpid( [pid 5873] <... openat resumed>) = 3 [pid 5877] <... close resumed>) = 0 [pid 5876] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, [pid 5875] <... getpid resumed>) = 1 [pid 5876] <... capget resumed>{effective=1< [pid 5873] write(3, "1024", 4 [pid 5877] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC [pid 5876] capset({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 5875] <... capget resumed>{effective=1<) = 0 [pid 5875] capset({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 5877] <... openat resumed>) = 3 [pid 5876] unshare(CLONE_NEWNET [pid 5875] <... capset resumed>) = 0 [pid 5877] write(3, "8192", 4 [pid 5873] <... write resumed>) = 4 [pid 5875] unshare(CLONE_NEWNET [pid 5874] <... openat resumed>) = 3 [pid 5877] <... write resumed>) = 4 [pid 5874] write(3, "1024", 4 [pid 5873] close(3 [pid 5877] close(3 [pid 5874] <... write resumed>) = 4 [pid 5877] <... close resumed>) = 0 [pid 5874] close(3 [pid 5877] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC [pid 5874] <... close resumed>) = 0 [pid 5873] <... close resumed>) = 0 [pid 5877] <... openat resumed>) = 3 [pid 5874] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC [pid 5873] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC [pid 5877] write(3, "1024", 4 [pid 5874] <... openat resumed>) = 3 [pid 5873] <... openat resumed>) = 3 [pid 5873] write(3, "1024", 4) = 4 [pid 5877] <... write resumed>) = 4 [pid 5874] write(3, "1024", 4 [pid 5873] close(3 [pid 5877] close(3 [pid 5874] <... write resumed>) = 4 [pid 5873] <... close resumed>) = 0 [pid 5877] <... close resumed>) = 0 [pid 5874] close(3 [pid 5877] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC [pid 5874] <... close resumed>) = 0 [pid 5873] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC [pid 5877] <... openat resumed>) = 3 [pid 5877] write(3, "1024", 4 [pid 5874] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC [pid 5873] <... openat resumed>) = 3 [pid 5877] <... write resumed>) = 4 [pid 5874] <... openat resumed>) = 3 [pid 5873] write(3, "1024 1048576 500 1024", 21 [pid 5877] close(3 [pid 5874] write(3, "1024 1048576 500 1024", 21 [pid 5873] <... write resumed>) = 21 [pid 5877] <... close resumed>) = 0 [pid 5874] <... write resumed>) = 21 [pid 5877] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC [pid 5873] close(3 [pid 5877] <... openat resumed>) = 3 [pid 5874] close(3 [pid 5873] <... close resumed>) = 0 [pid 5874] <... close resumed>) = 0 [pid 5874] getpid( [pid 5873] getpid( [pid 5877] write(3, "1024 1048576 500 1024", 21 [pid 5874] <... getpid resumed>) = 1 [pid 5877] <... write resumed>) = 21 [pid 5874] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, [pid 5873] <... getpid resumed>) = 1 [pid 5877] close(3 [pid 5874] <... capget resumed>{effective=1<) = 0 [pid 5874] capset({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 5873] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, [pid 5877] getpid() = 1 [pid 5874] <... capset resumed>) = 0 [pid 5873] <... capget resumed>{effective=1< [pid 5874] unshare(CLONE_NEWNET [pid 5873] capset({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 5877] <... capget resumed>{effective=1<) = 0 [pid 5877] capset({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 5873] unshare(CLONE_NEWNET [pid 5877] <... capset resumed>) = 0 [pid 5877] unshare(CLONE_NEWNET [pid 5876] <... unshare resumed>) = 0 [pid 5876] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC) = 3 [pid 5876] write(3, "0 65535", 7) = 7 [pid 5876] close(3) = 0 [pid 5876] openat(AT_FDCWD, "/dev/net/tun", O_RDWR|O_NONBLOCK) = 3 [pid 5876] dup2(3, 200) = 200 [pid 5876] close(3) = 0 [pid 5876] ioctl(200, TUNSETIFF, 0x7ffe3f41b760 [pid 5875] <... unshare resumed>) = 0 [pid 5875] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC [pid 5876] <... ioctl resumed>) = 0 [pid 5875] <... openat resumed>) = 3 [pid 5876] openat(AT_FDCWD, "/proc/sys/net/ipv6/conf/syz_tun/accept_dad", O_WRONLY|O_CLOEXEC [pid 5875] write(3, "0 65535", 7 [pid 5876] <... openat resumed>) = 3 [pid 5873] <... unshare resumed>) = 0 [pid 5873] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC [pid 5876] write(3, "0", 1 [pid 5875] <... write resumed>) = 7 [pid 5876] <... write resumed>) = 1 [pid 5875] close(3 [pid 5876] close(3 [pid 5875] <... close resumed>) = 0 [pid 5876] <... close resumed>) = 0 [pid 5876] openat(AT_FDCWD, "/proc/sys/net/ipv6/conf/syz_tun/router_solicitations", O_WRONLY|O_CLOEXEC [pid 5875] openat(AT_FDCWD, "/dev/net/tun", O_RDWR|O_NONBLOCK [pid 5873] <... openat resumed>) = 3 [pid 5875] <... openat resumed>) = 3 [pid 5873] write(3, "0 65535", 7 [pid 5876] <... openat resumed>) = 3 [pid 5873] <... write resumed>) = 7 [pid 5875] dup2(3, 200) = 200 [pid 5873] close(3 [pid 5875] close(3) = 0 [pid 5873] <... close resumed>) = 0 [pid 5875] ioctl(200, TUNSETIFF, 0x7ffe3f41b760 [pid 5876] write(3, "0", 1) = 1 [pid 5877] <... unshare resumed>) = 0 [pid 5876] close(3 [pid 5875] <... ioctl resumed>) = 0 [pid 5874] <... unshare resumed>) = 0 [pid 5873] openat(AT_FDCWD, "/dev/net/tun", O_RDWR|O_NONBLOCK [pid 5877] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC [pid 5876] <... close resumed>) = 0 [pid 5877] <... openat resumed>) = 3 [pid 5875] openat(AT_FDCWD, "/proc/sys/net/ipv6/conf/syz_tun/accept_dad", O_WRONLY|O_CLOEXEC [pid 5876] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 3 [pid 5873] <... openat resumed>) = 3 [pid 5877] write(3, "0 65535", 7) = 7 [pid 5876] socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0 [pid 5875] <... openat resumed>) = 3 [pid 5873] dup2(3, 200 [pid 5877] close(3) = 0 [pid 5876] <... socket resumed>) = 4 [pid 5875] write(3, "0", 1 [pid 5874] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC [pid 5873] <... dup2 resumed>) = 200 [pid 5877] openat(AT_FDCWD, "/dev/net/tun", O_RDWR|O_NONBLOCK [pid 5875] <... write resumed>) = 1 [pid 5874] <... openat resumed>) = 3 [pid 5873] close(3 [pid 5876] ioctl(4, SIOCGIFINDEX, {ifr_name="syz_tun" [pid 5877] <... openat resumed>) = 3 [pid 5875] close(3 [pid 5873] <... close resumed>) = 0 [pid 5877] dup2(3, 200 [pid 5876] <... ioctl resumed>, ifr_ifindex=11}) = 0 [pid 5875] <... close resumed>) = 0 [pid 5874] write(3, "0 65535", 7 [pid 5873] ioctl(200, TUNSETIFF, 0x7ffe3f41b760 [pid 5877] <... dup2 resumed>) = 200 [pid 5876] close(4 [pid 5875] openat(AT_FDCWD, "/proc/sys/net/ipv6/conf/syz_tun/router_solicitations", O_WRONLY|O_CLOEXEC [pid 5874] <... write resumed>) = 7 [pid 5877] close(3 [pid 5876] <... close resumed>) = 0 [pid 5875] <... openat resumed>) = 3 [pid 5875] write(3, "0", 1) = 1 [pid 5875] close(3 [pid 5877] <... close resumed>) = 0 [pid 5876] sendto(3, [{nlmsg_len=40, nlmsg_type=0x14 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x500, nlmsg_seq=0, nlmsg_pid=0}, "\x02\x18\x00\x00\x0b\x00\x00\x00\x08\x00\x02\x00\xac\x14\x14\xaa\x08\x00\x01\x00\xac\x14\x14\xaa"], 40, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12 [pid 5875] <... close resumed>) = 0 [pid 5874] close(3 [pid 5873] <... ioctl resumed>) = 0 [pid 5877] ioctl(200, TUNSETIFF, 0x7ffe3f41b760 [pid 5875] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5874] <... close resumed>) = 0 [pid 5873] openat(AT_FDCWD, "/proc/sys/net/ipv6/conf/syz_tun/accept_dad", O_WRONLY|O_CLOEXEC [pid 5876] <... sendto resumed>) = 40 [pid 5875] <... socket resumed>) = 3 [pid 5875] socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0 [pid 5874] openat(AT_FDCWD, "/dev/net/tun", O_RDWR|O_NONBLOCK [pid 5873] <... openat resumed>) = 3 [pid 5875] <... socket resumed>) = 4 [pid 5874] <... openat resumed>) = 3 [pid 5875] ioctl(4, SIOCGIFINDEX, {ifr_name="syz_tun" [pid 5877] <... ioctl resumed>) = 0 [pid 5876] recvfrom(3, [pid 5875] <... ioctl resumed>, ifr_ifindex=11}) = 0 [pid 5874] dup2(3, 200 [pid 5873] write(3, "0", 1 [pid 5877] openat(AT_FDCWD, "/proc/sys/net/ipv6/conf/syz_tun/accept_dad", O_WRONLY|O_CLOEXEC [pid 5876] <... recvfrom resumed>[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=1}, {error=0, msg={nlmsg_len=40, nlmsg_type=0x14 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x500, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 [pid 5877] <... openat resumed>) = 3 [pid 5876] socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0 [pid 5875] close(4 [pid 5874] <... dup2 resumed>) = 200 [pid 5873] <... write resumed>) = 1 [pid 5876] <... socket resumed>) = 4 [pid 5876] ioctl(4, SIOCGIFINDEX, {ifr_name="syz_tun", ifr_ifindex=11}) = 0 [pid 5876] close(4 [pid 5875] <... close resumed>) = 0 [pid 5874] close(3 [pid 5877] write(3, "0", 1 [pid 5876] <... close resumed>) = 0 [pid 5874] <... close resumed>) = 0 [pid 5877] <... write resumed>) = 1 [pid 5876] sendto(3, [{nlmsg_len=64, nlmsg_type=0x14 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x500, nlmsg_seq=0, nlmsg_pid=0}, "\x0a\x78\x00\x00\x0b\x00\x00\x00\x14\x00\x02\x00\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xaa\x14\x00\x01\x00\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xaa"], 64, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12 [pid 5875] sendto(3, [{nlmsg_len=40, nlmsg_type=0x14 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x500, nlmsg_seq=0, nlmsg_pid=0}, "\x02\x18\x00\x00\x0b\x00\x00\x00\x08\x00\x02\x00\xac\x14\x14\xaa\x08\x00\x01\x00\xac\x14\x14\xaa"], 40, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12 [pid 5874] ioctl(200, TUNSETIFF, 0x7ffe3f41b760 [pid 5877] close(3 [pid 5876] <... sendto resumed>) = 64 [pid 5873] close(3) = 0 [pid 5873] openat(AT_FDCWD, "/proc/sys/net/ipv6/conf/syz_tun/router_solicitations", O_WRONLY|O_CLOEXEC) = 3 [pid 5873] write(3, "0", 1) = 1 [pid 5873] close(3) = 0 [pid 5877] <... close resumed>) = 0 [pid 5873] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5877] openat(AT_FDCWD, "/proc/sys/net/ipv6/conf/syz_tun/router_solicitations", O_WRONLY|O_CLOEXEC [pid 5876] recvfrom(3, [pid 5877] <... openat resumed>) = 3 [pid 5876] <... recvfrom resumed>[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=1}, {error=0, msg={nlmsg_len=64, nlmsg_type=0x14 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x500, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 [pid 5873] <... socket resumed>) = 3 [pid 5877] write(3, "0", 1 [pid 5876] socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0 [pid 5873] socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0 [pid 5877] <... write resumed>) = 1 [pid 5876] <... socket resumed>) = 4 [pid 5875] <... sendto resumed>) = 40 [pid 5874] <... ioctl resumed>) = 0 [pid 5877] close(3 [pid 5876] ioctl(4, SIOCGIFINDEX, {ifr_name="syz_tun" [pid 5873] <... socket resumed>) = 4 [pid 5876] <... ioctl resumed>, ifr_ifindex=11}) = 0 [pid 5876] close(4) = 0 [pid 5873] ioctl(4, SIOCGIFINDEX, {ifr_name="syz_tun" [pid 5876] sendto(3, [{nlmsg_len=48, nlmsg_type=0x1c /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=0, nlmsg_pid=0}, "\x02\x00\x00\x00\x0b\x00\x00\x00\x80\x00\x00\x00\x08\x00\x01\x00\xac\x14\x14\xbb\x0a\x00\x02\x00\xbb\xaa\xaa\xaa\xaa\xaa\x00\x00"], 48, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12 [pid 5877] <... close resumed>) = 0 [pid 5876] <... sendto resumed>) = 48 [pid 5875] recvfrom(3, [pid 5874] openat(AT_FDCWD, "/proc/sys/net/ipv6/conf/syz_tun/accept_dad", O_WRONLY|O_CLOEXEC [pid 5873] <... ioctl resumed>, ifr_ifindex=11}) = 0 [pid 5877] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5876] recvfrom(3, [pid 5877] <... socket resumed>) = 3 [pid 5876] <... recvfrom resumed>[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=1}, {error=0, msg={nlmsg_len=48, nlmsg_type=0x1c /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 [pid 5877] socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0 [pid 5876] socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0 [pid 5875] <... recvfrom resumed>[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=1}, {error=0, msg={nlmsg_len=40, nlmsg_type=0x14 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x500, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 [pid 5874] <... openat resumed>) = 3 [pid 5873] close(4 [pid 5877] <... socket resumed>) = 4 [pid 5876] <... socket resumed>) = 4 [pid 5875] socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0 [pid 5877] ioctl(4, SIOCGIFINDEX, {ifr_name="syz_tun" [pid 5876] ioctl(4, SIOCGIFINDEX, {ifr_name="syz_tun" [pid 5874] write(3, "0", 1 [pid 5873] <... close resumed>) = 0 [pid 5877] <... ioctl resumed>, ifr_ifindex=11}) = 0 [pid 5876] <... ioctl resumed>, ifr_ifindex=11}) = 0 [pid 5875] <... socket resumed>) = 4 [pid 5877] close(4 [pid 5876] close(4 [pid 5877] <... close resumed>) = 0 [pid 5876] <... close resumed>) = 0 [pid 5875] ioctl(4, SIOCGIFINDEX, {ifr_name="syz_tun" [pid 5874] <... write resumed>) = 1 [pid 5873] sendto(3, [{nlmsg_len=40, nlmsg_type=0x14 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x500, nlmsg_seq=0, nlmsg_pid=0}, "\x02\x18\x00\x00\x0b\x00\x00\x00\x08\x00\x02\x00\xac\x14\x14\xaa\x08\x00\x01\x00\xac\x14\x14\xaa"], 40, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12 [pid 5877] sendto(3, [{nlmsg_len=40, nlmsg_type=0x14 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x500, nlmsg_seq=0, nlmsg_pid=0}, "\x02\x18\x00\x00\x0b\x00\x00\x00\x08\x00\x02\x00\xac\x14\x14\xaa\x08\x00\x01\x00\xac\x14\x14\xaa"], 40, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12 [pid 5876] sendto(3, [{nlmsg_len=60, nlmsg_type=0x1c /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=0, nlmsg_pid=0}, "\x0a\x00\x00\x00\x0b\x00\x00\x00\x80\x00\x00\x00\x14\x00\x01\x00\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xbb\x0a\x00\x02\x00\xbb\xaa\xaa\xaa\xaa\xaa\x00\x00"], 60, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12 [pid 5875] <... ioctl resumed>, ifr_ifindex=11}) = 0 [pid 5874] close(3 [pid 5877] <... sendto resumed>) = 40 [pid 5876] <... sendto resumed>) = 60 [pid 5873] <... sendto resumed>) = 40 [pid 5876] recvfrom(3, [{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=1}, {error=0, msg={nlmsg_len=60, nlmsg_type=0x1c /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 [pid 5874] <... close resumed>) = 0 [pid 5877] recvfrom(3, [pid 5876] socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0 [pid 5875] close(4 [pid 5873] recvfrom(3, [pid 5874] openat(AT_FDCWD, "/proc/sys/net/ipv6/conf/syz_tun/router_solicitations", O_WRONLY|O_CLOEXEC [pid 5876] <... socket resumed>) = 4 [pid 5876] ioctl(4, SIOCGIFINDEX, {ifr_name="syz_tun" [pid 5875] <... close resumed>) = 0 [pid 5876] <... ioctl resumed>, ifr_ifindex=11}) = 0 [pid 5874] <... openat resumed>) = 3 [pid 5877] <... recvfrom resumed>[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=1}, {error=0, msg={nlmsg_len=40, nlmsg_type=0x14 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x500, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 [pid 5876] close(4 [pid 5875] sendto(3, [{nlmsg_len=64, nlmsg_type=0x14 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x500, nlmsg_seq=0, nlmsg_pid=0}, "\x0a\x78\x00\x00\x0b\x00\x00\x00\x14\x00\x02\x00\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xaa\x14\x00\x01\x00\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xaa"], 64, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12 [pid 5874] write(3, "0", 1 [pid 5873] <... recvfrom resumed>[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=1}, {error=0, msg={nlmsg_len=40, nlmsg_type=0x14 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x500, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 [pid 5877] socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0 [pid 5876] <... close resumed>) = 0 [pid 5875] <... sendto resumed>) = 64 [pid 5874] <... write resumed>) = 1 [pid 5873] socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0 [pid 5877] <... socket resumed>) = 4 [pid 5876] sendto(3, [{nlmsg_len=44, nlmsg_type=0x10 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}, "\x00\x00\x00\x00\x0b\x00\x00\x00\x01\x00\x00\x00\x01\x00\x00\x00\x0a\x00\x01\x00\xaa\xaa\xaa\xaa\xaa\xaa\x00\x00"], 44, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12 [pid 5877] ioctl(4, SIOCGIFINDEX, {ifr_name="syz_tun" [pid 5875] recvfrom(3, [pid 5874] close(3 [pid 5873] <... socket resumed>) = 4 [pid 5877] <... ioctl resumed>, ifr_ifindex=11}) = 0 [pid 5875] <... recvfrom resumed>[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=1}, {error=0, msg={nlmsg_len=64, nlmsg_type=0x14 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x500, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 [pid 5874] <... close resumed>) = 0 [pid 5873] ioctl(4, SIOCGIFINDEX, {ifr_name="syz_tun" [pid 5877] close(4 [pid 5875] socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0 [pid 5874] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5873] <... ioctl resumed>, ifr_ifindex=11}) = 0 [pid 5877] <... close resumed>) = 0 [pid 5876] <... sendto resumed>) = 44 [pid 5875] <... socket resumed>) = 4 [pid 5874] <... socket resumed>) = 3 [pid 5873] close(4 [pid 5877] sendto(3, [{nlmsg_len=64, nlmsg_type=0x14 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x500, nlmsg_seq=0, nlmsg_pid=0}, "\x0a\x78\x00\x00\x0b\x00\x00\x00\x14\x00\x02\x00\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xaa\x14\x00\x01\x00\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xaa"], 64, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12 [pid 5876] recvfrom(3, [pid 5875] ioctl(4, SIOCGIFINDEX, {ifr_name="syz_tun" [pid 5876] <... recvfrom resumed>[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=1}, {error=0, msg={nlmsg_len=44, nlmsg_type=0x10 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 [pid 5874] socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0 [pid 5873] <... close resumed>) = 0 [pid 5877] <... sendto resumed>) = 64 [pid 5876] close(3 [pid 5875] <... ioctl resumed>, ifr_ifindex=11}) = 0 [pid 5873] sendto(3, [{nlmsg_len=64, nlmsg_type=0x14 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x500, nlmsg_seq=0, nlmsg_pid=0}, "\x0a\x78\x00\x00\x0b\x00\x00\x00\x14\x00\x02\x00\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xaa\x14\x00\x01\x00\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xaa"], 64, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12 [pid 5877] recvfrom(3, [pid 5876] <... close resumed>) = 0 [pid 5875] close(4 [pid 5874] <... socket resumed>) = 4 [pid 5877] <... recvfrom resumed>[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=1}, {error=0, msg={nlmsg_len=64, nlmsg_type=0x14 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x500, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 [pid 5876] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC [pid 5877] socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0 [pid 5876] <... openat resumed>) = 3 [pid 5875] <... close resumed>) = 0 [pid 5874] ioctl(4, SIOCGIFINDEX, {ifr_name="syz_tun" [pid 5873] <... sendto resumed>) = 64 [pid 5876] write(3, "100000", 6 [pid 5877] <... socket resumed>) = 4 [pid 5875] sendto(3, [{nlmsg_len=48, nlmsg_type=0x1c /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=0, nlmsg_pid=0}, "\x02\x00\x00\x00\x0b\x00\x00\x00\x80\x00\x00\x00\x08\x00\x01\x00\xac\x14\x14\xbb\x0a\x00\x02\x00\xbb\xaa\xaa\xaa\xaa\xaa\x00\x00"], 48, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12 [pid 5874] <... ioctl resumed>, ifr_ifindex=11}) = 0 [pid 5873] recvfrom(3, [pid 5877] ioctl(4, SIOCGIFINDEX, {ifr_name="syz_tun" [pid 5876] <... write resumed>) = 6 [pid 5875] <... sendto resumed>) = 48 [pid 5874] close(4 [pid 5873] <... recvfrom resumed>[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=1}, {error=0, msg={nlmsg_len=64, nlmsg_type=0x14 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x500, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 [pid 5877] <... ioctl resumed>, ifr_ifindex=11}) = 0 [pid 5876] close(3 [pid 5875] recvfrom(3, [pid 5874] <... close resumed>) = 0 [pid 5873] socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0 [pid 5877] close(4 [pid 5876] <... close resumed>) = 0 [pid 5875] <... recvfrom resumed>[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=1}, {error=0, msg={nlmsg_len=48, nlmsg_type=0x1c /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 [pid 5877] <... close resumed>) = 0 [pid 5876] mkdir("./syz-tmp", 0777 [pid 5875] socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0 [pid 5874] sendto(3, [{nlmsg_len=40, nlmsg_type=0x14 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x500, nlmsg_seq=0, nlmsg_pid=0}, "\x02\x18\x00\x00\x0b\x00\x00\x00\x08\x00\x02\x00\xac\x14\x14\xaa\x08\x00\x01\x00\xac\x14\x14\xaa"], 40, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12 [pid 5873] <... socket resumed>) = 4 [pid 5877] sendto(3, [{nlmsg_len=48, nlmsg_type=0x1c /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=0, nlmsg_pid=0}, "\x02\x00\x00\x00\x0b\x00\x00\x00\x80\x00\x00\x00\x08\x00\x01\x00\xac\x14\x14\xbb\x0a\x00\x02\x00\xbb\xaa\xaa\xaa\xaa\xaa\x00\x00"], 48, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12 [pid 5876] <... mkdir resumed>) = 0 [pid 5875] <... socket resumed>) = 4 [pid 5873] ioctl(4, SIOCGIFINDEX, {ifr_name="syz_tun" [pid 5877] <... sendto resumed>) = 48 [pid 5876] mount("", "./syz-tmp", "tmpfs", 0, NULL [pid 5875] ioctl(4, SIOCGIFINDEX, {ifr_name="syz_tun" [pid 5874] <... sendto resumed>) = 40 [pid 5873] <... ioctl resumed>, ifr_ifindex=11}) = 0 [pid 5877] recvfrom(3, [pid 5875] <... ioctl resumed>, ifr_ifindex=11}) = 0 [pid 5874] recvfrom(3, [pid 5873] close(4 [pid 5875] close(4 [pid 5874] <... recvfrom resumed>[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=1}, {error=0, msg={nlmsg_len=40, nlmsg_type=0x14 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x500, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 [pid 5877] <... recvfrom resumed>[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=1}, {error=0, msg={nlmsg_len=48, nlmsg_type=0x1c /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 [pid 5876] <... mount resumed>) = 0 [pid 5875] <... close resumed>) = 0 [pid 5874] socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0 [pid 5873] <... close resumed>) = 0 [pid 5877] socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0 [pid 5876] mkdir("./syz-tmp/newroot", 0777 [pid 5875] sendto(3, [{nlmsg_len=60, nlmsg_type=0x1c /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=0, nlmsg_pid=0}, "\x0a\x00\x00\x00\x0b\x00\x00\x00\x80\x00\x00\x00\x14\x00\x01\x00\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xbb\x0a\x00\x02\x00\xbb\xaa\xaa\xaa\xaa\xaa\x00\x00"], 60, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12 [pid 5874] <... socket resumed>) = 4 [pid 5873] sendto(3, [{nlmsg_len=48, nlmsg_type=0x1c /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=0, nlmsg_pid=0}, "\x02\x00\x00\x00\x0b\x00\x00\x00\x80\x00\x00\x00\x08\x00\x01\x00\xac\x14\x14\xbb\x0a\x00\x02\x00\xbb\xaa\xaa\xaa\xaa\xaa\x00\x00"], 48, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12 [pid 5877] <... socket resumed>) = 4 [pid 5876] <... mkdir resumed>) = 0 [pid 5875] <... sendto resumed>) = 60 [pid 5874] ioctl(4, SIOCGIFINDEX, {ifr_name="syz_tun" [pid 5873] <... sendto resumed>) = 48 [pid 5875] recvfrom(3, [pid 5874] <... ioctl resumed>, ifr_ifindex=11}) = 0 [pid 5873] recvfrom(3, [pid 5877] ioctl(4, SIOCGIFINDEX, {ifr_name="syz_tun" [pid 5876] mkdir("./syz-tmp/newroot/dev", 0700 [pid 5875] <... recvfrom resumed>[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=1}, {error=0, msg={nlmsg_len=60, nlmsg_type=0x1c /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 [pid 5873] <... recvfrom resumed>[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=1}, {error=0, msg={nlmsg_len=48, nlmsg_type=0x1c /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 [pid 5877] <... ioctl resumed>, ifr_ifindex=11}) = 0 [pid 5876] <... mkdir resumed>) = 0 [pid 5875] socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0 [pid 5874] close(4 [pid 5873] socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0) = 4 [pid 5873] ioctl(4, SIOCGIFINDEX, {ifr_name="syz_tun", ifr_ifindex=11}) = 0 [pid 5877] close(4 [pid 5876] mount("/dev", "./syz-tmp/newroot/dev", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5875] <... socket resumed>) = 4 [pid 5874] <... close resumed>) = 0 [pid 5873] close(4 [pid 5875] ioctl(4, SIOCGIFINDEX, {ifr_name="syz_tun" [pid 5877] <... close resumed>) = 0 [pid 5875] <... ioctl resumed>, ifr_ifindex=11}) = 0 [pid 5875] close(4) = 0 [pid 5875] sendto(3, [{nlmsg_len=44, nlmsg_type=0x10 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}, "\x00\x00\x00\x00\x0b\x00\x00\x00\x01\x00\x00\x00\x01\x00\x00\x00\x0a\x00\x01\x00\xaa\xaa\xaa\xaa\xaa\xaa\x00\x00"], 44, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12 [pid 5876] <... mount resumed>) = 0 [pid 5877] sendto(3, [{nlmsg_len=60, nlmsg_type=0x1c /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=0, nlmsg_pid=0}, "\x0a\x00\x00\x00\x0b\x00\x00\x00\x80\x00\x00\x00\x14\x00\x01\x00\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xbb\x0a\x00\x02\x00\xbb\xaa\xaa\xaa\xaa\xaa\x00\x00"], 60, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12 [pid 5874] sendto(3, [{nlmsg_len=64, nlmsg_type=0x14 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x500, nlmsg_seq=0, nlmsg_pid=0}, "\x0a\x78\x00\x00\x0b\x00\x00\x00\x14\x00\x02\x00\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xaa\x14\x00\x01\x00\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xaa"], 64, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12 [pid 5873] <... close resumed>) = 0 [pid 5876] mkdir("./syz-tmp/newroot/proc", 0700 [pid 5873] sendto(3, [{nlmsg_len=60, nlmsg_type=0x1c /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=0, nlmsg_pid=0}, "\x0a\x00\x00\x00\x0b\x00\x00\x00\x80\x00\x00\x00\x14\x00\x01\x00\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xbb\x0a\x00\x02\x00\xbb\xaa\xaa\xaa\xaa\xaa\x00\x00"], 60, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12 [pid 5877] <... sendto resumed>) = 60 [pid 5876] <... mkdir resumed>) = 0 [pid 5875] <... sendto resumed>) = 44 [pid 5877] recvfrom(3, [pid 5874] <... sendto resumed>) = 64 [pid 5877] <... recvfrom resumed>[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=1}, {error=0, msg={nlmsg_len=60, nlmsg_type=0x1c /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 [pid 5876] mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL [pid 5875] recvfrom(3, [pid 5874] recvfrom(3, [pid 5873] <... sendto resumed>) = 60 [pid 5877] socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0 [pid 5875] <... recvfrom resumed>[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=1}, {error=0, msg={nlmsg_len=44, nlmsg_type=0x10 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 [pid 5873] recvfrom(3, [pid 5877] <... socket resumed>) = 4 [pid 5876] <... mount resumed>) = 0 [pid 5874] <... recvfrom resumed>[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=1}, {error=0, msg={nlmsg_len=64, nlmsg_type=0x14 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x500, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 [pid 5873] <... recvfrom resumed>[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=1}, {error=0, msg={nlmsg_len=60, nlmsg_type=0x1c /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 [pid 5877] ioctl(4, SIOCGIFINDEX, {ifr_name="syz_tun" [pid 5876] mkdir("./syz-tmp/newroot/selinux", 0700 [pid 5875] close(3 [pid 5874] socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0 [pid 5873] socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0) = 4 [pid 5873] ioctl(4, SIOCGIFINDEX, {ifr_name="syz_tun" [pid 5877] <... ioctl resumed>, ifr_ifindex=11}) = 0 [pid 5876] <... mkdir resumed>) = 0 [pid 5875] <... close resumed>) = 0 [pid 5874] <... socket resumed>) = 4 [pid 5877] close(4 [pid 5876] mount("/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5875] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC [pid 5874] ioctl(4, SIOCGIFINDEX, {ifr_name="syz_tun" [pid 5873] <... ioctl resumed>, ifr_ifindex=11}) = 0 [pid 5877] <... close resumed>) = 0 [pid 5876] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5874] <... ioctl resumed>, ifr_ifindex=11}) = 0 [pid 5873] close(4 [pid 5877] sendto(3, [{nlmsg_len=44, nlmsg_type=0x10 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}, "\x00\x00\x00\x00\x0b\x00\x00\x00\x01\x00\x00\x00\x01\x00\x00\x00\x0a\x00\x01\x00\xaa\xaa\xaa\xaa\xaa\xaa\x00\x00"], 44, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12 [pid 5874] close(4 [pid 5876] mount("/sys/fs/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5875] <... openat resumed>) = 3 [pid 5873] <... close resumed>) = 0 [pid 5876] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5875] write(3, "100000", 6 [pid 5874] <... close resumed>) = 0 [pid 5875] <... write resumed>) = 6 [pid 5875] close(3) = 0 [pid 5876] mkdir("./syz-tmp/newroot/sys", 0700 [pid 5875] mkdir("./syz-tmp", 0777 [pid 5876] <... mkdir resumed>) = 0 [pid 5875] <... mkdir resumed>) = 0 [pid 5876] mount("/sys", "./syz-tmp/newroot/sys", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5877] <... sendto resumed>) = 44 [pid 5877] recvfrom(3, [pid 5875] mount("", "./syz-tmp", "tmpfs", 0, NULL [pid 5874] sendto(3, [{nlmsg_len=48, nlmsg_type=0x1c /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=0, nlmsg_pid=0}, "\x02\x00\x00\x00\x0b\x00\x00\x00\x80\x00\x00\x00\x08\x00\x01\x00\xac\x14\x14\xbb\x0a\x00\x02\x00\xbb\xaa\xaa\xaa\xaa\xaa\x00\x00"], 48, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12 [pid 5873] sendto(3, [{nlmsg_len=44, nlmsg_type=0x10 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}, "\x00\x00\x00\x00\x0b\x00\x00\x00\x01\x00\x00\x00\x01\x00\x00\x00\x0a\x00\x01\x00\xaa\xaa\xaa\xaa\xaa\xaa\x00\x00"], 44, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12 [pid 5877] <... recvfrom resumed>[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=1}, {error=0, msg={nlmsg_len=44, nlmsg_type=0x10 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 [pid 5876] <... mount resumed>) = 0 [pid 5875] <... mount resumed>) = 0 [pid 5874] <... sendto resumed>) = 48 [pid 5877] close(3) = 0 [pid 5876] mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5874] recvfrom(3, [pid 5877] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC [pid 5876] <... mount resumed>) = 0 [pid 5877] <... openat resumed>) = 3 [pid 5875] mkdir("./syz-tmp/newroot", 0777 [pid 5874] <... recvfrom resumed>[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=1}, {error=0, msg={nlmsg_len=48, nlmsg_type=0x1c /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 [pid 5877] write(3, "100000", 6 [pid 5876] mount("/sys/fs/smackfs", "./syz-tmp/newroot/sys/fs/smackfs", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5875] <... mkdir resumed>) = 0 [pid 5873] <... sendto resumed>) = 44 [pid 5877] <... write resumed>) = 6 [pid 5876] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5874] socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0 [pid 5877] close(3 [pid 5876] mount("/proc/sys/fs/binfmt_misc", "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5877] <... close resumed>) = 0 [pid 5875] mkdir("./syz-tmp/newroot/dev", 0700 [pid 5874] <... socket resumed>) = 4 [pid 5873] recvfrom(3, [pid 5877] mkdir("./syz-tmp", 0777 [pid 5876] <... mount resumed>) = 0 [pid 5875] <... mkdir resumed>) = 0 [pid 5874] ioctl(4, SIOCGIFINDEX, {ifr_name="syz_tun" [pid 5873] <... recvfrom resumed>[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=1}, {error=0, msg={nlmsg_len=44, nlmsg_type=0x10 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 [pid 5877] <... mkdir resumed>) = 0 [pid 5876] mkdir("./syz-tmp/newroot/syz-inputs", 0700 [pid 5875] mount("/dev", "./syz-tmp/newroot/dev", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5874] <... ioctl resumed>, ifr_ifindex=11}) = 0 [pid 5873] close(3 [pid 5877] mount("", "./syz-tmp", "tmpfs", 0, NULL [pid 5876] <... mkdir resumed>) = 0 [pid 5875] <... mount resumed>) = 0 [pid 5873] <... close resumed>) = 0 [pid 5876] mount("/syz-inputs", "./syz-tmp/newroot/syz-inputs", NULL, MS_RDONLY|MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5875] mkdir("./syz-tmp/newroot/proc", 0700 [pid 5874] close(4 [pid 5873] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC [pid 5876] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5875] <... mkdir resumed>) = 0 [pid 5873] <... openat resumed>) = 3 [pid 5873] write(3, "100000", 6) = 6 [pid 5877] <... mount resumed>) = 0 [pid 5876] mkdir("./syz-tmp/newroot/syzcgroup", 0700 [pid 5875] mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL [pid 5874] <... close resumed>) = 0 [pid 5877] mkdir("./syz-tmp/newroot", 0777 [pid 5876] <... mkdir resumed>) = 0 [pid 5874] sendto(3, [{nlmsg_len=60, nlmsg_type=0x1c /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=0, nlmsg_pid=0}, "\x0a\x00\x00\x00\x0b\x00\x00\x00\x80\x00\x00\x00\x14\x00\x01\x00\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xbb\x0a\x00\x02\x00\xbb\xaa\xaa\xaa\xaa\xaa\x00\x00"], 60, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12 [pid 5873] close(3 [pid 5877] <... mkdir resumed>) = 0 [pid 5876] mkdir("./syz-tmp/newroot/syzcgroup/unified", 0700 [pid 5875] <... mount resumed>) = 0 [pid 5874] <... sendto resumed>) = 60 [pid 5877] mkdir("./syz-tmp/newroot/dev", 0700 [pid 5875] mkdir("./syz-tmp/newroot/selinux", 0700 [pid 5873] <... close resumed>) = 0 [pid 5877] <... mkdir resumed>) = 0 [pid 5874] recvfrom(3, [pid 5876] <... mkdir resumed>) = 0 [pid 5874] <... recvfrom resumed>[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=1}, {error=0, msg={nlmsg_len=60, nlmsg_type=0x1c /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 [pid 5877] mount("/dev", "./syz-tmp/newroot/dev", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5876] mkdir("./syz-tmp/newroot/syzcgroup/cpu", 0700 [pid 5875] <... mkdir resumed>) = 0 [pid 5873] mkdir("./syz-tmp", 0777 [pid 5875] mount("/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5874] socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0) = 4 [pid 5874] ioctl(4, SIOCGIFINDEX, {ifr_name="syz_tun", ifr_ifindex=11}) = 0 [pid 5874] close(4 [pid 5873] <... mkdir resumed>) = 0 [pid 5875] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5874] <... close resumed>) = 0 [pid 5874] sendto(3, [{nlmsg_len=44, nlmsg_type=0x10 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}, "\x00\x00\x00\x00\x0b\x00\x00\x00\x01\x00\x00\x00\x01\x00\x00\x00\x0a\x00\x01\x00\xaa\xaa\xaa\xaa\xaa\xaa\x00\x00"], 44, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12 [pid 5877] <... mount resumed>) = 0 [pid 5876] <... mkdir resumed>) = 0 [pid 5875] mount("/sys/fs/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5873] mount("", "./syz-tmp", "tmpfs", 0, NULL [pid 5875] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5873] <... mount resumed>) = 0 [pid 5877] mkdir("./syz-tmp/newroot/proc", 0700 [pid 5876] mkdir("./syz-tmp/newroot/syzcgroup/net", 0700 [pid 5875] mkdir("./syz-tmp/newroot/sys", 0700 [pid 5877] <... mkdir resumed>) = 0 [pid 5876] <... mkdir resumed>) = 0 [pid 5875] <... mkdir resumed>) = 0 [pid 5873] mkdir("./syz-tmp/newroot", 0777 [pid 5876] mount("/syzcgroup/unified", "./syz-tmp/newroot/syzcgroup/unified", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5875] mount("/sys", "./syz-tmp/newroot/sys", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5876] <... mount resumed>) = 0 [pid 5875] <... mount resumed>) = 0 [pid 5873] <... mkdir resumed>) = 0 [pid 5877] mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL [pid 5876] mount("/syzcgroup/cpu", "./syz-tmp/newroot/syzcgroup/cpu", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5874] <... sendto resumed>) = 44 [pid 5873] mkdir("./syz-tmp/newroot/dev", 0700 [pid 5876] <... mount resumed>) = 0 [pid 5874] recvfrom(3, [pid 5873] <... mkdir resumed>) = 0 [pid 5877] <... mount resumed>) = 0 [pid 5875] mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5873] mount("/dev", "./syz-tmp/newroot/dev", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5877] mkdir("./syz-tmp/newroot/selinux", 0700 [pid 5876] mount("/syzcgroup/net", "./syz-tmp/newroot/syzcgroup/net", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5875] <... mount resumed>) = 0 [pid 5874] <... recvfrom resumed>[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=1}, {error=0, msg={nlmsg_len=44, nlmsg_type=0x10 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 [pid 5877] <... mkdir resumed>) = 0 [pid 5876] <... mount resumed>) = 0 [pid 5875] mount("/sys/fs/smackfs", "./syz-tmp/newroot/sys/fs/smackfs", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5873] <... mount resumed>) = 0 [pid 5877] mount("/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5876] mkdir("./syz-tmp/pivot", 0777 [pid 5874] close(3 [pid 5873] mkdir("./syz-tmp/newroot/proc", 0700 [pid 5877] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5876] <... mkdir resumed>) = 0 [pid 5875] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5874] <... close resumed>) = 0 [pid 5877] mount("/sys/fs/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5876] pivot_root("./syz-tmp", "./syz-tmp/pivot" [pid 5875] mount("/proc/sys/fs/binfmt_misc", "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5874] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC [pid 5873] <... mkdir resumed>) = 0 [pid 5873] mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL [pid 5876] <... pivot_root resumed>) = 0 [pid 5873] <... mount resumed>) = 0 [pid 5877] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5873] mkdir("./syz-tmp/newroot/selinux", 0700 [pid 5877] mkdir("./syz-tmp/newroot/sys", 0700 [pid 5876] chdir("/" [pid 5875] <... mount resumed>) = 0 [pid 5874] <... openat resumed>) = 3 [pid 5876] <... chdir resumed>) = 0 [pid 5874] write(3, "100000", 6 [pid 5873] <... mkdir resumed>) = 0 [pid 5876] umount2("./pivot", MNT_DETACH [pid 5874] <... write resumed>) = 6 [pid 5874] close(3) = 0 [pid 5873] mount("/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5874] mkdir("./syz-tmp", 0777 [pid 5873] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5877] <... mkdir resumed>) = 0 [pid 5875] mkdir("./syz-tmp/newroot/syz-inputs", 0700 [pid 5874] <... mkdir resumed>) = 0 [pid 5873] mount("/sys/fs/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5877] mount("/sys", "./syz-tmp/newroot/sys", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5874] mount("", "./syz-tmp", "tmpfs", 0, NULL [pid 5875] <... mkdir resumed>) = 0 [pid 5877] <... mount resumed>) = 0 [pid 5876] <... umount2 resumed>) = 0 [pid 5875] mount("/syz-inputs", "./syz-tmp/newroot/syz-inputs", NULL, MS_RDONLY|MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5873] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5877] mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5875] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5876] chroot("./newroot" [pid 5874] <... mount resumed>) = 0 [pid 5873] mkdir("./syz-tmp/newroot/sys", 0700 [pid 5877] <... mount resumed>) = 0 [pid 5876] <... chroot resumed>) = 0 [pid 5875] mkdir("./syz-tmp/newroot/syzcgroup", 0700 [pid 5873] <... mkdir resumed>) = 0 [pid 5877] mount("/sys/fs/smackfs", "./syz-tmp/newroot/sys/fs/smackfs", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5876] chdir("/" [pid 5875] <... mkdir resumed>) = 0 [pid 5874] mkdir("./syz-tmp/newroot", 0777 [pid 5873] mount("/sys", "./syz-tmp/newroot/sys", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5876] <... chdir resumed>) = 0 [pid 5877] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5875] mkdir("./syz-tmp/newroot/syzcgroup/unified", 0700 [pid 5876] mkdir("/dev/gadgetfs", 0777 [pid 5875] <... mkdir resumed>) = 0 [pid 5874] <... mkdir resumed>) = 0 [pid 5873] <... mount resumed>) = 0 [pid 5876] <... mkdir resumed>) = 0 [pid 5874] mkdir("./syz-tmp/newroot/dev", 0700 [pid 5877] mount("/proc/sys/fs/binfmt_misc", "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5876] mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULL [pid 5874] <... mkdir resumed>) = 0 [pid 5877] <... mount resumed>) = 0 [pid 5876] <... mount resumed>) = 0 [pid 5875] mkdir("./syz-tmp/newroot/syzcgroup/cpu", 0700 [pid 5874] mount("/dev", "./syz-tmp/newroot/dev", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5873] mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5877] mkdir("./syz-tmp/newroot/syz-inputs", 0700 [pid 5876] mkdir("/dev/binderfs", 0777 [pid 5875] <... mkdir resumed>) = 0 [pid 5877] <... mkdir resumed>) = 0 [pid 5876] <... mkdir resumed>) = 0 [pid 5874] <... mount resumed>) = 0 [pid 5873] <... mount resumed>) = 0 [pid 5875] mkdir("./syz-tmp/newroot/syzcgroup/net", 0700 [pid 5877] mount("/syz-inputs", "./syz-tmp/newroot/syz-inputs", NULL, MS_RDONLY|MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5876] mount("binder", "/dev/binderfs", "binder", 0, NULL [pid 5874] mkdir("./syz-tmp/newroot/proc", 0700 [pid 5873] mount("/sys/fs/smackfs", "./syz-tmp/newroot/sys/fs/smackfs", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5877] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5875] <... mkdir resumed>) = 0 [pid 5873] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5877] mkdir("./syz-tmp/newroot/syzcgroup", 0700) = 0 [pid 5875] mount("/syzcgroup/unified", "./syz-tmp/newroot/syzcgroup/unified", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5873] mount("/proc/sys/fs/binfmt_misc", "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5875] <... mount resumed>) = 0 [pid 5877] mkdir("./syz-tmp/newroot/syzcgroup/unified", 0700 [pid 5876] <... mount resumed>) = 0 [pid 5874] <... mkdir resumed>) = 0 [pid 5873] <... mount resumed>) = 0 [pid 5877] <... mkdir resumed>) = 0 [pid 5875] mount("/syzcgroup/cpu", "./syz-tmp/newroot/syzcgroup/cpu", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5874] mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL [pid 5873] mkdir("./syz-tmp/newroot/syz-inputs", 0700 [pid 5877] mkdir("./syz-tmp/newroot/syzcgroup/cpu", 0700 [pid 5876] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL [pid 5875] <... mount resumed>) = 0 [pid 5874] <... mount resumed>) = 0 [pid 5873] <... mkdir resumed>) = 0 [pid 5875] mount("/syzcgroup/net", "./syz-tmp/newroot/syzcgroup/net", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5877] <... mkdir resumed>) = 0 [pid 5875] <... mount resumed>) = 0 [pid 5877] mkdir("./syz-tmp/newroot/syzcgroup/net", 0700 [pid 5876] <... mount resumed>) = -1 EBUSY (Device or resource busy) [pid 5873] mount("/syz-inputs", "./syz-tmp/newroot/syz-inputs", NULL, MS_RDONLY|MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5877] <... mkdir resumed>) = 0 [pid 5874] mkdir("./syz-tmp/newroot/selinux", 0700 [pid 5877] mount("/syzcgroup/unified", "./syz-tmp/newroot/syzcgroup/unified", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5875] mkdir("./syz-tmp/pivot", 0777 [pid 5873] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5876] getpid( [pid 5875] <... mkdir resumed>) = 0 [pid 5874] <... mkdir resumed>) = 0 [pid 5875] pivot_root("./syz-tmp", "./syz-tmp/pivot" [pid 5877] <... mount resumed>) = 0 [pid 5876] <... getpid resumed>) = 1 [pid 5874] mount("/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5873] mkdir("./syz-tmp/newroot/syzcgroup", 0700 [pid 5876] mkdir("/syzcgroup/unified/syz3", 0777 [pid 5875] <... pivot_root resumed>) = 0 [pid 5875] chdir("/" [pid 5874] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5875] <... chdir resumed>) = 0 [pid 5877] mount("/syzcgroup/cpu", "./syz-tmp/newroot/syzcgroup/cpu", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5875] umount2("./pivot", MNT_DETACH [pid 5873] <... mkdir resumed>) = 0 [pid 5877] <... mount resumed>) = 0 [pid 5876] <... mkdir resumed>) = 0 [pid 5875] <... umount2 resumed>) = 0 [pid 5874] mount("/sys/fs/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5873] mkdir("./syz-tmp/newroot/syzcgroup/unified", 0700 [pid 5877] mount("/syzcgroup/net", "./syz-tmp/newroot/syzcgroup/net", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5876] openat(AT_FDCWD, "/syzcgroup/unified/syz3/pids.max", O_WRONLY|O_CLOEXEC [pid 5874] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5873] <... mkdir resumed>) = 0 [pid 5877] <... mount resumed>) = 0 [pid 5876] <... openat resumed>) = 3 [pid 5874] mkdir("./syz-tmp/newroot/sys", 0700) = 0 [pid 5873] mkdir("./syz-tmp/newroot/syzcgroup/cpu", 0700 [pid 5877] mkdir("./syz-tmp/pivot", 0777 [pid 5874] mount("/sys", "./syz-tmp/newroot/sys", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5873] <... mkdir resumed>) = 0 [pid 5877] <... mkdir resumed>) = 0 [pid 5874] <... mount resumed>) = 0 [pid 5873] mkdir("./syz-tmp/newroot/syzcgroup/net", 0700 [pid 5877] pivot_root("./syz-tmp", "./syz-tmp/pivot" [pid 5876] write(3, "32", 2 [pid 5873] <... mkdir resumed>) = 0 [pid 5877] <... pivot_root resumed>) = 0 [pid 5876] <... write resumed>) = 2 [pid 5875] chroot("./newroot" [pid 5874] mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5873] mount("/syzcgroup/unified", "./syz-tmp/newroot/syzcgroup/unified", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5877] chdir("/" [pid 5876] close(3 [pid 5875] <... chroot resumed>) = 0 [pid 5873] <... mount resumed>) = 0 [pid 5877] <... chdir resumed>) = 0 [pid 5876] <... close resumed>) = 0 [pid 5874] <... mount resumed>) = 0 [pid 5873] mount("/syzcgroup/cpu", "./syz-tmp/newroot/syzcgroup/cpu", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5877] umount2("./pivot", MNT_DETACH [pid 5876] openat(AT_FDCWD, "/syzcgroup/unified/syz3/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 5875] chdir("/") = 0 [pid 5875] mkdir("/dev/gadgetfs", 0777) = -1 EEXIST (File exists) [pid 5875] mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULL [pid 5876] <... openat resumed>) = 3 [pid 5875] <... mount resumed>) = 0 [pid 5874] mount("/sys/fs/smackfs", "./syz-tmp/newroot/sys/fs/smackfs", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5875] mkdir("/dev/binderfs", 0777 [pid 5877] <... umount2 resumed>) = 0 [pid 5876] write(3, "1", 1 [pid 5874] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5873] <... mount resumed>) = 0 [pid 5877] chroot("./newroot" [pid 5875] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5873] mount("/syzcgroup/net", "./syz-tmp/newroot/syzcgroup/net", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5877] <... chroot resumed>) = 0 [pid 5875] mount("binder", "/dev/binderfs", "binder", 0, NULL [pid 5874] mount("/proc/sys/fs/binfmt_misc", "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5873] <... mount resumed>) = 0 [pid 5876] <... write resumed>) = 1 [pid 5877] chdir("/" [pid 5875] <... mount resumed>) = 0 [pid 5874] <... mount resumed>) = 0 [pid 5873] mkdir("./syz-tmp/pivot", 0777 [pid 5877] <... chdir resumed>) = 0 [pid 5876] close(3 [pid 5877] mkdir("/dev/gadgetfs", 0777 [pid 5875] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL [pid 5874] mkdir("./syz-tmp/newroot/syz-inputs", 0700 [pid 5877] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5876] <... close resumed>) = 0 [pid 5873] <... mkdir resumed>) = 0 [pid 5875] <... mount resumed>) = -1 EBUSY (Device or resource busy) [pid 5874] <... mkdir resumed>) = 0 [pid 5877] mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULL [pid 5876] mkdir("/syzcgroup/cpu/syz3", 0777 [pid 5875] getpid( [pid 5873] pivot_root("./syz-tmp", "./syz-tmp/pivot" [pid 5877] <... mount resumed>) = 0 [pid 5874] mount("/syz-inputs", "./syz-tmp/newroot/syz-inputs", NULL, MS_RDONLY|MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5875] <... getpid resumed>) = 1 [pid 5875] mkdir("/syzcgroup/unified/syz2", 0777 [pid 5873] <... pivot_root resumed>) = 0 [pid 5877] mkdir("/dev/binderfs", 0777 [pid 5876] <... mkdir resumed>) = 0 [pid 5874] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5873] chdir("/" [pid 5877] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5874] mkdir("./syz-tmp/newroot/syzcgroup", 0700 [pid 5877] mount("binder", "/dev/binderfs", "binder", 0, NULL [pid 5876] openat(AT_FDCWD, "/syzcgroup/cpu/syz3/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 5873] <... chdir resumed>) = 0 [pid 5877] <... mount resumed>) = 0 [pid 5875] <... mkdir resumed>) = 0 [pid 5874] <... mkdir resumed>) = 0 [pid 5873] umount2("./pivot", MNT_DETACH [pid 5875] openat(AT_FDCWD, "/syzcgroup/unified/syz2/pids.max", O_WRONLY|O_CLOEXEC [pid 5877] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL [pid 5876] <... openat resumed>) = 3 [pid 5874] mkdir("./syz-tmp/newroot/syzcgroup/unified", 0700 [pid 5873] <... umount2 resumed>) = 0 [pid 5876] write(3, "1", 1 [pid 5877] <... mount resumed>) = -1 EBUSY (Device or resource busy) [pid 5875] <... openat resumed>) = 3 [pid 5877] getpid( [pid 5874] <... mkdir resumed>) = 0 [pid 5873] chroot("./newroot" [pid 5875] write(3, "32", 2 [pid 5877] <... getpid resumed>) = 1 [pid 5876] <... write resumed>) = 1 [pid 5874] mkdir("./syz-tmp/newroot/syzcgroup/cpu", 0700 [pid 5873] <... chroot resumed>) = 0 [pid 5876] close(3 [pid 5873] chdir("/" [pid 5877] mkdir("/syzcgroup/unified/syz4", 0777 [pid 5875] <... write resumed>) = 2 [pid 5874] <... mkdir resumed>) = 0 [pid 5873] <... chdir resumed>) = 0 [pid 5876] <... close resumed>) = 0 [pid 5876] openat(AT_FDCWD, "/syzcgroup/cpu/syz3/memory.soft_limit_in_bytes", O_WRONLY|O_CLOEXEC) = 3 [pid 5876] write(3, "313524224", 9 [pid 5877] <... mkdir resumed>) = 0 [pid 5875] close(3 [pid 5874] mkdir("./syz-tmp/newroot/syzcgroup/net", 0700 [pid 5873] mkdir("/dev/gadgetfs", 0777 [pid 5877] openat(AT_FDCWD, "/syzcgroup/unified/syz4/pids.max", O_WRONLY|O_CLOEXEC) = 3 [pid 5877] write(3, "32", 2 [pid 5875] <... close resumed>) = 0 [pid 5874] <... mkdir resumed>) = 0 [pid 5873] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5877] <... write resumed>) = 2 [pid 5875] openat(AT_FDCWD, "/syzcgroup/unified/syz2/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 5874] mount("/syzcgroup/unified", "./syz-tmp/newroot/syzcgroup/unified", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5877] close(3 [pid 5876] <... write resumed>) = 9 [pid 5873] mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULL [pid 5874] <... mount resumed>) = 0 [pid 5876] close(3) = 0 [pid 5875] <... openat resumed>) = 3 [pid 5876] openat(AT_FDCWD, "/syzcgroup/cpu/syz3/memory.limit_in_bytes", O_WRONLY|O_CLOEXEC [pid 5877] <... close resumed>) = 0 [pid 5876] <... openat resumed>) = 3 [pid 5875] write(3, "1", 1 [pid 5874] mount("/syzcgroup/cpu", "./syz-tmp/newroot/syzcgroup/cpu", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5873] <... mount resumed>) = 0 [pid 5877] openat(AT_FDCWD, "/syzcgroup/unified/syz4/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 5876] write(3, "314572800", 9 [pid 5877] <... openat resumed>) = 3 [pid 5876] <... write resumed>) = 9 [pid 5876] close(3 [pid 5877] write(3, "1", 1 [pid 5873] mkdir("/dev/binderfs", 0777 [pid 5876] <... close resumed>) = 0 [pid 5873] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5876] mkdir("/syzcgroup/net/syz3", 0777) = 0 [pid 5874] <... mount resumed>) = 0 [pid 5875] <... write resumed>) = 1 [pid 5873] mount("binder", "/dev/binderfs", "binder", 0, NULL [pid 5876] openat(AT_FDCWD, "/syzcgroup/net/syz3/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 5877] <... write resumed>) = 1 [pid 5875] close(3 [pid 5874] mount("/syzcgroup/net", "./syz-tmp/newroot/syzcgroup/net", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5873] <... mount resumed>) = 0 [pid 5873] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL [pid 5877] close(3 [pid 5876] <... openat resumed>) = 3 [pid 5875] <... close resumed>) = 0 [pid 5874] <... mount resumed>) = 0 [pid 5873] <... mount resumed>) = -1 EBUSY (Device or resource busy) [pid 5877] <... close resumed>) = 0 [pid 5875] mkdir("/syzcgroup/cpu/syz2", 0777 [pid 5876] write(3, "1", 1 [pid 5874] mkdir("./syz-tmp/pivot", 0777 [pid 5873] getpid( [pid 5877] mkdir("/syzcgroup/cpu/syz4", 0777 [pid 5876] <... write resumed>) = 1 [pid 5875] <... mkdir resumed>) = 0 [pid 5874] <... mkdir resumed>) = 0 [pid 5873] <... getpid resumed>) = 1 [pid 5875] openat(AT_FDCWD, "/syzcgroup/cpu/syz2/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 5873] mkdir("/syzcgroup/unified/syz0", 0777 [pid 5876] close(3) = 0 [ 93.494200][ T5876] soft_limit_in_bytes is deprecated and will be removed. Please report your usecase to linux-mm@kvack.org if you depend on this functionality. [pid 5874] pivot_root("./syz-tmp", "./syz-tmp/pivot" [pid 5876] mkdir("./0", 0777 [pid 5877] <... mkdir resumed>) = 0 [pid 5875] <... openat resumed>) = 3 [pid 5874] <... pivot_root resumed>) = 0 [pid 5873] <... mkdir resumed>) = 0 [pid 5877] openat(AT_FDCWD, "/syzcgroup/cpu/syz4/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 5874] chdir("/" [pid 5873] openat(AT_FDCWD, "/syzcgroup/unified/syz0/pids.max", O_WRONLY|O_CLOEXEC [pid 5877] <... openat resumed>) = 3 [pid 5877] write(3, "1", 1 [pid 5876] <... mkdir resumed>) = 0 [pid 5875] write(3, "1", 1 [pid 5874] <... chdir resumed>) = 0 [pid 5873] <... openat resumed>) = 3 [pid 5874] umount2("./pivot", MNT_DETACH [pid 5873] write(3, "32", 2 [pid 5877] <... write resumed>) = 1 [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5875] <... write resumed>) = 1 [pid 5874] <... umount2 resumed>) = 0 [pid 5874] chroot("./newroot" [pid 5873] <... write resumed>) = 2 [pid 5874] <... chroot resumed>) = 0 [pid 5873] close(3 [pid 5874] chdir("/" [pid 5873] <... close resumed>) = 0 [pid 5874] <... chdir resumed>) = 0 ./strace-static-x86_64: Process 5885 attached [pid 5877] close(3 [pid 5875] close(3 [pid 5873] openat(AT_FDCWD, "/syzcgroup/unified/syz0/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 5877] <... close resumed>) = 0 [pid 5885] set_robust_list(0x5555947fb660, 24 [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 2 [pid 5875] <... close resumed>) = 0 [pid 5874] mkdir("/dev/gadgetfs", 0777 [pid 5873] <... openat resumed>) = 3 [pid 5885] <... set_robust_list resumed>) = 0 [pid 5877] openat(AT_FDCWD, "/syzcgroup/cpu/syz4/memory.soft_limit_in_bytes", O_WRONLY|O_CLOEXEC [pid 5875] openat(AT_FDCWD, "/syzcgroup/cpu/syz2/memory.soft_limit_in_bytes", O_WRONLY|O_CLOEXEC [pid 5874] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5873] write(3, "1", 1 [pid 5885] chdir("./0" [pid 5877] <... openat resumed>) = 3 [pid 5875] <... openat resumed>) = 3 [pid 5874] mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULL [pid 5877] write(3, "313524224", 9) = 9 [pid 5877] close(3) = 0 [pid 5877] openat(AT_FDCWD, "/syzcgroup/cpu/syz4/memory.limit_in_bytes", O_WRONLY|O_CLOEXEC [pid 5885] <... chdir resumed>) = 0 [pid 5877] <... openat resumed>) = 3 [pid 5875] write(3, "313524224", 9 [pid 5874] <... mount resumed>) = 0 [pid 5873] <... write resumed>) = 1 [pid 5885] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5875] <... write resumed>) = 9 [pid 5885] <... prctl resumed>) = 0 [pid 5875] close(3 [pid 5874] mkdir("/dev/binderfs", 0777 [pid 5873] close(3 [pid 5885] setpgid(0, 0) = 0 [pid 5875] <... close resumed>) = 0 [pid 5874] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5873] <... close resumed>) = 0 [pid 5877] write(3, "314572800", 9 [pid 5885] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5877] <... write resumed>) = 9 [pid 5875] openat(AT_FDCWD, "/syzcgroup/cpu/syz2/memory.limit_in_bytes", O_WRONLY|O_CLOEXEC [pid 5874] mount("binder", "/dev/binderfs", "binder", 0, NULL [pid 5873] mkdir("/syzcgroup/cpu/syz0", 0777 [pid 5877] close(3 [pid 5875] <... openat resumed>) = 3 [pid 5877] <... close resumed>) = 0 [pid 5877] mkdir("/syzcgroup/net/syz4", 0777 [pid 5875] write(3, "314572800", 9 [pid 5885] <... symlink resumed>) = 0 [pid 5874] <... mount resumed>) = 0 [pid 5877] <... mkdir resumed>) = 0 [pid 5875] <... write resumed>) = 9 [pid 5874] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL [pid 5873] <... mkdir resumed>) = 0 [pid 5885] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5875] close(3 [pid 5885] <... symlink resumed>) = 0 [pid 5877] openat(AT_FDCWD, "/syzcgroup/net/syz4/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 5874] <... mount resumed>) = -1 EBUSY (Device or resource busy) [pid 5875] <... close resumed>) = 0 [pid 5874] getpid( [pid 5885] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5875] mkdir("/syzcgroup/net/syz2", 0777 [pid 5874] <... getpid resumed>) = 1 [pid 5873] openat(AT_FDCWD, "/syzcgroup/cpu/syz0/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 5885] <... symlink resumed>) = 0 [pid 5874] mkdir("/syzcgroup/unified/syz1", 0777 [pid 5873] <... openat resumed>) = 3 [pid 5885] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5873] write(3, "1", 1 [pid 5885] write(3, "1000", 4 [pid 5874] <... mkdir resumed>) = 0 [pid 5885] <... write resumed>) = 4 [pid 5885] close(3 [pid 5877] <... openat resumed>) = 3 [pid 5885] <... close resumed>) = 0 [pid 5885] read(200, "\x33\x33\x00\x00\x00\x16\xaa\xaa\xaa\xaa\xaa\xaa\x86\xdd\x60\x00\x00\x00\x00\x38\x00\x01\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xaa\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x16\x3a\x00\x05\x02\x00\x00\x01\x00\x8f\x00\xc2\x46\x00\x00\x00\x02\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\xff\xaa\xaa\xaa\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00"..., 1000) = 110 executing program [pid 5885] read(200, [pid 5877] write(3, "1", 1 [pid 5874] openat(AT_FDCWD, "/syzcgroup/unified/syz1/pids.max", O_WRONLY|O_CLOEXEC [pid 5885] <... read resumed>"\x33\x33\x00\x00\x00\x16\xaa\xaa\xaa\xaa\xaa\xaa\x86\xdd\x60\x00\x00\x00\x00\x38\x00\x01\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xaa\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x16\x3a\x00\x05\x02\x00\x00\x01\x00\x8f\x00\xc2\x46\x00\x00\x00\x02\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\xff\xaa\xaa\xaa\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00"..., 1000) = 110 [pid 5885] read(200, 0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5885] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5885] write(1, "executing program\n", 18) = 18 [pid 5885] perf_event_open( [pid 5877] <... write resumed>) = 1 [pid 5875] <... mkdir resumed>) = 0 [pid 5873] <... write resumed>) = 1 [pid 5877] close(3 [pid 5874] <... openat resumed>) = 3 [pid 5877] <... close resumed>) = 0 [pid 5875] openat(AT_FDCWD, "/syzcgroup/net/syz2/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 5874] write(3, "32", 2 [pid 5873] close(3 [pid 5885] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5877] mkdir("./0", 0777 [pid 5874] <... write resumed>) = 2 [pid 5885] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5873] <... close resumed>) = 0 [pid 5885] <... bpf resumed>) = 4 [pid 5877] <... mkdir resumed>) = 0 [pid 5875] <... openat resumed>) = 3 [pid 5874] close(3 [pid 5873] openat(AT_FDCWD, "/syzcgroup/cpu/syz0/memory.soft_limit_in_bytes", O_WRONLY|O_CLOEXEC [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5875] write(3, "1", 1 [pid 5874] <... close resumed>) = 0 [pid 5873] <... openat resumed>) = 3 [pid 5885] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148./strace-static-x86_64: Process 5886 attached [pid 5875] <... write resumed>) = 1 [pid 5874] openat(AT_FDCWD, "/syzcgroup/unified/syz1/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 5873] write(3, "313524224", 9 [pid 5886] set_robust_list(0x5555947fb660, 24 [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 2 [pid 5875] close(3 [pid 5874] <... openat resumed>) = 3 [pid 5873] <... write resumed>) = 9 [pid 5886] <... set_robust_list resumed>) = 0 [pid 5875] <... close resumed>) = 0 [pid 5874] write(3, "1", 1 [pid 5873] close(3 [pid 5886] chdir("./0" [pid 5873] <... close resumed>) = 0 [pid 5886] <... chdir resumed>) = 0 [pid 5875] mkdir("./0", 0777 [pid 5873] openat(AT_FDCWD, "/syzcgroup/cpu/syz0/memory.limit_in_bytes", O_WRONLY|O_CLOEXEC [pid 5886] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5885] <... bpf resumed>) = 5 [pid 5875] <... mkdir resumed>) = 0 [pid 5874] <... write resumed>) = 1 [pid 5886] <... prctl resumed>) = 0 [pid 5873] <... openat resumed>) = 3 [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5885] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5874] close(3 [pid 5886] setpgid(0, 0 [pid 5885] <... bpf resumed>) = 6 [pid 5874] <... close resumed>) = 0 ./strace-static-x86_64: Process 5887 attached [pid 5886] <... setpgid resumed>) = 0 [pid 5885] perf_event_open( [pid 5874] mkdir("/syzcgroup/cpu/syz1", 0777 [pid 5873] write(3, "314572800", 9 [pid 5886] symlink("/syzcgroup/unified/syz4", "./cgroup") = 0 [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 2 [pid 5886] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5887] set_robust_list(0x5555947fb660, 24 [pid 5873] <... write resumed>) = 9 [pid 5886] <... symlink resumed>) = 0 [pid 5886] symlink("/syzcgroup/net/syz4", "./cgroup.net") = 0 [pid 5886] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5886] write(3, "1000", 4 [pid 5887] <... set_robust_list resumed>) = 0 [pid 5885] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5874] <... mkdir resumed>) = 0 [pid 5873] close(3 [pid 5886] <... write resumed>) = 4 [pid 5886] close(3 [pid 5873] <... close resumed>) = 0 [pid 5886] <... close resumed>) = 0 [pid 5886] read(200, "\x33\x33\x00\x00\x00\x16\xaa\xaa\xaa\xaa\xaa\xaa\x86\xdd\x60\x00\x00\x00\x00\x38\x00\x01\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xaa\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x16\x3a\x00\x05\x02\x00\x00\x01\x00\x8f\x00\xc2\x46\x00\x00\x00\x02\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\xff\xaa\xaa\xaa\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00"..., 1000) = 110 [pid 5886] read(200, "\x33\x33\x00\x00\x00\x16\xaa\xaa\xaa\xaa\xaa\xaa\x86\xdd\x60\x00\x00\x00\x00\x38\x00\x01\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xaa\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x16\x3a\x00\x05\x02\x00\x00\x01\x00\x8f\x00\xc2\x46\x00\x00\x00\x02\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\xff\xaa\xaa\xaa\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00"..., 1000) = 110 [pid 5886] read(200, [pid 5873] mkdir("/syzcgroup/net/syz0", 0777 [pid 5874] openat(AT_FDCWD, "/syzcgroup/cpu/syz1/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 5886] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5886] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5886] write(1, "executing program\n", 18 executing program [pid 5887] chdir("./0" [pid 5885] close(3 [pid 5874] <... openat resumed>) = 3 [pid 5873] <... mkdir resumed>) = 0 [pid 5886] <... write resumed>) = 18 [pid 5874] write(3, "1", 1) = 1 [pid 5887] <... chdir resumed>) = 0 [pid 5886] perf_event_open( [pid 5887] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5874] close(3 [pid 5873] openat(AT_FDCWD, "/syzcgroup/net/syz0/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 5887] <... prctl resumed>) = 0 [pid 5874] <... close resumed>) = 0 [pid 5874] openat(AT_FDCWD, "/syzcgroup/cpu/syz1/memory.soft_limit_in_bytes", O_WRONLY|O_CLOEXEC [pid 5887] setpgid(0, 0 [pid 5874] <... openat resumed>) = 3 [pid 5873] <... openat resumed>) = 3 [pid 5887] <... setpgid resumed>) = 0 [pid 5874] write(3, "313524224", 9 [pid 5887] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5873] write(3, "1", 1 [pid 5887] <... symlink resumed>) = 0 [pid 5874] <... write resumed>) = 9 [pid 5874] close(3 [pid 5887] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5874] <... close resumed>) = 0 [pid 5873] <... write resumed>) = 1 [pid 5887] <... symlink resumed>) = 0 [pid 5874] openat(AT_FDCWD, "/syzcgroup/cpu/syz1/memory.limit_in_bytes", O_WRONLY|O_CLOEXEC [pid 5873] close(3 [pid 5887] symlink("/syzcgroup/net/syz2", "./cgroup.net") = 0 [pid 5873] <... close resumed>) = 0 [pid 5887] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5874] <... openat resumed>) = 3 [pid 5873] mkdir("./0", 0777 [pid 5874] write(3, "314572800", 9) = 9 [pid 5874] close(3) = 0 [pid 5887] <... openat resumed>) = 3 [pid 5886] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5885] <... close resumed>) = 0 [pid 5873] <... mkdir resumed>) = 0 [pid 5887] write(3, "1000", 4 [pid 5886] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5885] close(4 [pid 5874] mkdir("/syzcgroup/net/syz1", 0777 [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5887] <... write resumed>) = 4 [pid 5885] <... close resumed>) = 0 [pid 5887] close(3) = 0 [pid 5885] close(5) = 0 ./strace-static-x86_64: Process 5888 attached [pid 5887] read(200, [pid 5886] <... bpf resumed>) = 4 [pid 5888] set_robust_list(0x5555947fb660, 24 [pid 5887] <... read resumed>"\x33\x33\x00\x00\x00\x16\xaa\xaa\xaa\xaa\xaa\xaa\x86\xdd\x60\x00\x00\x00\x00\x38\x00\x01\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xaa\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x16\x3a\x00\x05\x02\x00\x00\x01\x00\x8f\x00\xc2\x46\x00\x00\x00\x02\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\xff\xaa\xaa\xaa\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00"..., 1000) = 110 [pid 5886] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5885] close(6 [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 2 [pid 5888] <... set_robust_list resumed>) = 0 [pid 5887] read(200, [pid 5874] <... mkdir resumed>) = 0 [pid 5887] <... read resumed>"\x33\x33\x00\x00\x00\x16\xaa\xaa\xaa\xaa\xaa\xaa\x86\xdd\x60\x00\x00\x00\x00\x38\x00\x01\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xaa\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x16\x3a\x00\x05\x02\x00\x00\x01\x00\x8f\x00\xc2\x46\x00\x00\x00\x02\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\xff\xaa\xaa\xaa\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00"..., 1000) = 110 [pid 5888] chdir("./0" [pid 5887] read(200, [pid 5886] <... bpf resumed>) = 5 [pid 5885] <... close resumed>) = 0 [pid 5874] openat(AT_FDCWD, "/syzcgroup/net/syz1/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 5888] <... chdir resumed>) = 0 [pid 5887] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5887] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5888] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5887] write(1, "executing program\n", 18executing program ) = 18 [pid 5887] perf_event_open( [pid 5888] <... prctl resumed>) = 0 [pid 5874] <... openat resumed>) = 3 [pid 5888] setpgid(0, 0 [pid 5885] close(7 [pid 5888] <... setpgid resumed>) = 0 [pid 5886] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5887] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5874] write(3, "1", 1 [pid 5888] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5885] <... close resumed>) = 0 [pid 5874] <... write resumed>) = 1 [pid 5887] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5888] <... symlink resumed>) = 0 [pid 5885] close(8 [pid 5886] <... bpf resumed>) = 6 [pid 5887] <... bpf resumed>) = 4 [pid 5885] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5888] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5887] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5886] perf_event_open( [pid 5874] close(3 [pid 5888] <... symlink resumed>) = 0 [pid 5887] <... bpf resumed>) = 5 [pid 5885] close(9 [pid 5874] <... close resumed>) = 0 [pid 5888] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5886] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5885] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] mkdir("./0", 0777 [pid 5886] close(3 [pid 5885] close(10 [pid 5874] <... mkdir resumed>) = 0 [pid 5888] <... symlink resumed>) = 0 [pid 5887] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5886] <... close resumed>) = 0 [pid 5885] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5888] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5887] <... bpf resumed>) = 6 [pid 5886] close(4 [pid 5885] close(11 [pid 5888] <... openat resumed>) = 3 [pid 5886] <... close resumed>) = 0 [pid 5885] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5887] perf_event_open( [pid 5885] close(12./strace-static-x86_64: Process 5890 attached [pid 5888] write(3, "1000", 4 [pid 5886] close(5 [pid 5885] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5890] set_robust_list(0x5555947fb660, 24 [pid 5886] <... close resumed>) = 0 [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 2 [pid 5890] <... set_robust_list resumed>) = 0 [pid 5886] close(6 [pid 5885] close(13 [pid 5890] chdir("./0" [pid 5888] <... write resumed>) = 4 [pid 5887] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5888] close(3 [pid 5885] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5888] <... close resumed>) = 0 [pid 5887] close(3 [pid 5885] close(14 [pid 5888] read(200, "\x33\x33\x00\x00\x00\x16\xaa\xaa\xaa\xaa\xaa\xaa\x86\xdd\x60\x00\x00\x00\x00\x38\x00\x01\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xaa\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x16\x3a\x00\x05\x02\x00\x00\x01\x00\x8f\x00\xc2\x46\x00\x00\x00\x02\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\xff\xaa\xaa\xaa\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00"..., 1000) = 110 [pid 5885] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5885] close(15 [pid 5888] read(200, [pid 5885] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5888] <... read resumed>"\x33\x33\x00\x00\x00\x16\xaa\xaa\xaa\xaa\xaa\xaa\x86\xdd\x60\x00\x00\x00\x00\x38\x00\x01\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xaa\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x16\x3a\x00\x05\x02\x00\x00\x01\x00\x8f\x00\xc2\x46\x00\x00\x00\x02\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\xff\xaa\xaa\xaa\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00"..., 1000) = 110 [pid 5885] close(16 [pid 5888] read(200, [pid 5885] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5890] <... chdir resumed>) = 0 [pid 5888] <... read resumed>"\x33\x33\x00\x00\x00\x16\xaa\xaa\xaa\xaa\xaa\xaa\x86\xdd\x60\x00\x00\x00\x00\x38\x00\x01\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xaa\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x16\x3a\x00\x05\x02\x00\x00\x01\x00\x8f\x00\xc2\x46\x00\x00\x00\x02\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\xff\xaa\xaa\xaa\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00"..., 1000) = 110 [pid 5885] close(17 [pid 5890] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5888] read(200, [pid 5885] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5890] <... prctl resumed>) = 0 [pid 5888] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5885] close(18 [pid 5890] setpgid(0, 0 [pid 5888] symlink("/dev/binderfs", "./binderfs" [pid 5885] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5890] <... setpgid resumed>) = 0 [pid 5888] <... symlink resumed>) = 0 [pid 5885] close(19 [pid 5888] write(1, "executing program\n", 18 [pid 5885] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5888] <... write resumed>) = 18 executing program [pid 5885] close(20 [pid 5890] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5888] perf_event_open( [pid 5885] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5885] close(21) = -1 EBADF (Bad file descriptor) [pid 5885] close(22) = -1 EBADF (Bad file descriptor) [pid 5885] close(23) = -1 EBADF (Bad file descriptor) [pid 5885] close(24) = -1 EBADF (Bad file descriptor) [pid 5885] close(25) = -1 EBADF (Bad file descriptor) [pid 5885] close(26) = -1 EBADF (Bad file descriptor) [pid 5885] close(27) = -1 EBADF (Bad file descriptor) [pid 5885] close(28) = -1 EBADF (Bad file descriptor) [pid 5886] <... close resumed>) = 0 [pid 5885] close(29) = -1 EBADF (Bad file descriptor) [pid 5890] <... symlink resumed>) = 0 [pid 5885] exit_group(0) = ? [pid 5890] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5888] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5887] <... close resumed>) = 0 [pid 5886] close(7 [pid 5888] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5890] <... symlink resumed>) = 0 [pid 5887] close(4 [pid 5888] <... bpf resumed>) = 4 [pid 5886] <... close resumed>) = 0 [pid 5890] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5888] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5886] close(8 [pid 5885] +++ exited with 0 +++ [pid 5890] <... symlink resumed>) = 0 [pid 5887] <... close resumed>) = 0 [pid 5886] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5890] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5887] close(5 [pid 5886] close(9 [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5886] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5888] <... bpf resumed>) = 5 [pid 5887] <... close resumed>) = 0 [pid 5886] close(10 [pid 5876] restart_syscall(<... resuming interrupted clone ...> [pid 5890] <... openat resumed>) = 3 [pid 5888] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5886] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5887] close(6 [pid 5890] write(3, "1000", 4 [pid 5888] <... bpf resumed>) = 6 [pid 5886] close(11 [pid 5890] <... write resumed>) = 4 [pid 5888] perf_event_open( [pid 5886] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5888] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5886] close(12 [pid 5890] close(3 [pid 5886] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... restart_syscall resumed>) = 0 [pid 5890] <... close resumed>) = 0 [pid 5888] close(3 [pid 5887] <... close resumed>) = 0 [pid 5886] close(13 [pid 5887] close(7 [pid 5890] read(200, [pid 5887] <... close resumed>) = 0 [pid 5886] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5890] <... read resumed>"\x33\x33\x00\x00\x00\x16\xaa\xaa\xaa\xaa\xaa\xaa\x86\xdd\x60\x00\x00\x00\x00\x38\x00\x01\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xaa\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x16\x3a\x00\x05\x02\x00\x00\x01\x00\x8f\x00\xc2\x46\x00\x00\x00\x02\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\xff\xaa\xaa\xaa\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00"..., 1000) = 110 [pid 5887] close(8 [pid 5886] close(14 [pid 5890] read(200, [pid 5887] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5886] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5890] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5887] close(9 [pid 5886] close(15 [pid 5890] symlink("/dev/binderfs", "./binderfs" [pid 5886] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5890] <... symlink resumed>) = 0 [pid 5887] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5886] close(16executing program [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5890] write(1, "executing program\n", 18 [pid 5887] close(10 [pid 5886] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5890] <... write resumed>) = 18 [pid 5887] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5886] close(17 [pid 5890] perf_event_open( [pid 5887] close(11 [pid 5886] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... openat resumed>) = 3 [pid 5887] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5886] close(18 [pid 5887] close(12 [pid 5886] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5887] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5886] close(19 [pid 5876] newfstatat(3, "", [pid 5886] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5886] close(20) = -1 EBADF (Bad file descriptor) [pid 5886] close(21) = -1 EBADF (Bad file descriptor) [pid 5886] close(22 [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5887] close(13 [pid 5886] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5886] close(23 [pid 5887] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5886] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] getdents64(3, [pid 5887] close(14 [pid 5886] close(24) = -1 EBADF (Bad file descriptor) [pid 5887] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5886] close(25 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5887] close(15 [pid 5886] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5887] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5886] close(26 [pid 5887] close(16 [pid 5886] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5887] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5886] close(27 [pid 5887] close(17 [pid 5886] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5887] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5886] close(28 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5886] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5886] close(29) = -1 EBADF (Bad file descriptor) [pid 5886] exit_group(0) = ? [pid 5887] close(18 [pid 5876] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5887] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5887] close(19 [pid 5876] unlink("./0/binderfs" [pid 5887] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5886] +++ exited with 0 +++ [pid 5876] <... unlink resumed>) = 0 [pid 5887] close(20 [pid 5876] umount2("./0/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5887] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5887] close(21 [pid 5876] newfstatat(AT_FDCWD, "./0/cgroup.net", [pid 5887] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5887] close(22 [pid 5877] restart_syscall(<... resuming interrupted clone ...> [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5877] <... restart_syscall resumed>) = 0 [pid 5887] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] unlink("./0/cgroup.net" [pid 5887] close(23 [pid 5877] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5877] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5877] newfstatat(3, "", [pid 5887] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 5887] close(24 [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5887] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] getdents64(3, [pid 5887] close(25) = -1 EBADF (Bad file descriptor) [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5887] close(26) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5887] close(27) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5887] close(28 [pid 5877] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5887] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5887] close(29) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./0/binderfs" [pid 5887] exit_group(0 [pid 5876] umount2("./0/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5887] <... exit_group resumed>) = ? [pid 5877] <... unlink resumed>) = 0 [pid 5876] newfstatat(AT_FDCWD, "./0/cgroup.cpu", [pid 5877] umount2("./0/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] unlink("./0/cgroup.cpu" [pid 5887] +++ exited with 0 +++ [pid 5877] newfstatat(AT_FDCWD, "./0/cgroup.net", [pid 5876] <... unlink resumed>) = 0 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] umount2("./0/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5890] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5888] <... close resumed>) = 0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] restart_syscall(<... resuming interrupted clone ...> [pid 5890] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5877] unlink("./0/cgroup.net" [pid 5876] newfstatat(AT_FDCWD, "./0/cgroup", [pid 5875] <... restart_syscall resumed>) = 0 [pid 5890] <... bpf resumed>) = 4 [pid 5888] close(4 [pid 5877] <... unlink resumed>) = 0 [pid 5890] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5888] <... close resumed>) = 0 [pid 5877] umount2("./0/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5888] close(5 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] unlink("./0/cgroup" [pid 5875] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5888] <... close resumed>) = 0 [pid 5877] newfstatat(AT_FDCWD, "./0/cgroup.cpu", [pid 5888] close(6 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] <... unlink resumed>) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5876] getdents64(3, [pid 5890] <... bpf resumed>) = 5 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5875] <... openat resumed>) = 3 [pid 5890] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5888] <... close resumed>) = 0 [pid 5876] close(3 [pid 5875] newfstatat(3, "", [pid 5888] close(7 [pid 5877] unlink("./0/cgroup.cpu" [pid 5888] <... close resumed>) = 0 [pid 5876] <... close resumed>) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5888] close(8 [pid 5877] <... unlink resumed>) = 0 [pid 5876] rmdir("./0" [pid 5875] getdents64(3, [pid 5888] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./0/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] <... rmdir resumed>) = 0 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5890] <... bpf resumed>) = 6 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] mkdir("./1", 0777 [pid 5875] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5890] perf_event_open( [pid 5888] close(9 [pid 5877] newfstatat(AT_FDCWD, "./0/cgroup", [pid 5888] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] <... mkdir resumed>) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5890] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5888] close(10 [pid 5877] unlink("./0/cgroup" [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5875] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5888] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 5888] close(11) = -1 EBADF (Bad file descriptor) [pid 5877] getdents64(3, [pid 5890] close(3 [pid 5888] close(12 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5888] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5888] close(13 [pid 5877] close(3 [pid 5888] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... close resumed>) = 0 ./strace-static-x86_64: Process 5891 attached [pid 5888] close(14 [pid 5875] unlink("./0/binderfs" [pid 5888] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] rmdir("./0" [pid 5891] set_robust_list(0x5555947fb660, 24 [pid 5888] close(15 [pid 5877] <... rmdir resumed>) = 0 [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 3 [pid 5875] <... unlink resumed>) = 0 [pid 5888] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5888] close(16 [pid 5877] mkdir("./1", 0777 [pid 5875] umount2("./0/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5891] <... set_robust_list resumed>) = 0 [pid 5888] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... mkdir resumed>) = 0 [pid 5888] close(17 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5888] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5875] newfstatat(AT_FDCWD, "./0/cgroup.net", [pid 5891] chdir("./1" [pid 5888] close(18 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 5892 attached [pid 5888] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5891] <... chdir resumed>) = 0 [pid 5875] unlink("./0/cgroup.net" [pid 5892] set_robust_list(0x5555947fb660, 24 [pid 5888] close(19 [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 3 [pid 5875] <... unlink resumed>) = 0 [pid 5891] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5892] <... set_robust_list resumed>) = 0 [pid 5888] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5892] chdir("./1" [pid 5888] close(20 [pid 5875] umount2("./0/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5892] <... chdir resumed>) = 0 [pid 5891] <... prctl resumed>) = 0 [pid 5888] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5892] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5891] setpgid(0, 0 [pid 5888] close(21 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] newfstatat(AT_FDCWD, "./0/cgroup.cpu", [pid 5892] <... prctl resumed>) = 0 [pid 5891] <... setpgid resumed>) = 0 [pid 5888] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5892] setpgid(0, 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5892] <... setpgid resumed>) = 0 [pid 5888] close(22 [pid 5875] unlink("./0/cgroup.cpu" [pid 5892] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5891] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5888] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5892] <... symlink resumed>) = 0 [pid 5888] close(23 [pid 5875] <... unlink resumed>) = 0 [pid 5892] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5891] <... symlink resumed>) = 0 [pid 5888] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./0/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5892] <... symlink resumed>) = 0 [pid 5891] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5888] close(24 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5892] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5888] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(AT_FDCWD, "./0/cgroup", [pid 5891] <... symlink resumed>) = 0 [pid 5888] close(25 [pid 5892] <... symlink resumed>) = 0 [pid 5888] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5891] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5888] close(26 [pid 5892] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5890] <... close resumed>) = 0 [pid 5888] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] unlink("./0/cgroup" [pid 5892] <... openat resumed>) = 3 [pid 5891] <... symlink resumed>) = 0 [pid 5890] close(4 [pid 5888] close(27 [pid 5875] <... unlink resumed>) = 0 [pid 5892] write(3, "1000", 4 [pid 5891] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5888] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5888] close(28) = -1 EBADF (Bad file descriptor) [pid 5888] close(29 [pid 5892] <... write resumed>) = 4 [pid 5888] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5892] close(3 [pid 5891] <... openat resumed>) = 3 [pid 5890] <... close resumed>) = 0 [pid 5875] getdents64(3, [pid 5892] <... close resumed>) = 0 [pid 5891] write(3, "1000", 4 [pid 5888] exit_group(0 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5892] read(200, [pid 5891] <... write resumed>) = 4 [pid 5888] <... exit_group resumed>) = ? executing program [pid 5890] close(5 [pid 5875] close(3 [pid 5892] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5891] close(3 [pid 5892] symlink("/dev/binderfs", "./binderfs" [pid 5891] <... close resumed>) = 0 [pid 5888] +++ exited with 0 +++ [pid 5892] <... symlink resumed>) = 0 [pid 5891] read(200, [pid 5892] write(1, "executing program\n", 18 [pid 5891] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5892] <... write resumed>) = 18 [pid 5891] symlink("/dev/binderfs", "./binderfs" [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5892] perf_event_open( [pid 5891] <... symlink resumed>) = 0 [pid 5892] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5890] <... close resumed>) = 0 [pid 5875] <... close resumed>) = 0 [pid 5873] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5891] write(1, "executing program\n", 18 executing program [pid 5892] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5890] close(6 [pid 5875] rmdir("./0" [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5892] <... bpf resumed>) = 4 [pid 5891] <... write resumed>) = 18 [pid 5873] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5891] perf_event_open( [pid 5892] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5873] <... openat resumed>) = 3 [pid 5890] <... close resumed>) = 0 [pid 5875] <... rmdir resumed>) = 0 [pid 5891] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5890] close(7 [pid 5873] newfstatat(3, "", [pid 5891] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5875] mkdir("./1", 0777 [pid 5891] <... bpf resumed>) = 4 [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5875] <... mkdir resumed>) = 0 [pid 5892] <... bpf resumed>) = 5 [pid 5891] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5890] <... close resumed>) = 0 [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5873] getdents64(3, [pid 5892] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5890] close(8 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5890] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5891] <... bpf resumed>) = 5 [pid 5890] close(9 [pid 5873] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5873] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5890] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5892] <... bpf resumed>) = 6 [pid 5891] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5890] close(10 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5892] perf_event_open( [pid 5890] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5890] close(11 [pid 5873] unlink("./0/binderfs"./strace-static-x86_64: Process 5893 attached [pid 5892] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5891] <... bpf resumed>) = 6 [pid 5890] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... unlink resumed>) = 0 [pid 5893] set_robust_list(0x5555947fb660, 24 [pid 5891] perf_event_open( [pid 5890] close(12 [pid 5873] umount2("./0/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5893] <... set_robust_list resumed>) = 0 [pid 5892] close(3 [pid 5890] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 3 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5890] close(13) = -1 EBADF (Bad file descriptor) [pid 5891] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5873] newfstatat(AT_FDCWD, "./0/cgroup.net", [pid 5890] close(14 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5893] chdir("./1" [pid 5873] unlink("./0/cgroup.net" [pid 5891] close(3 [pid 5873] <... unlink resumed>) = 0 [pid 5890] <... close resumed>) = -1 EBADF (Bad file descriptor) [ 93.924930][ C1] hrtimer: interrupt took 36790 ns [pid 5873] umount2("./0/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5893] <... chdir resumed>) = 0 [pid 5892] <... close resumed>) = 0 [pid 5890] close(15 [pid 5893] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5892] close(4 [pid 5890] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5893] <... prctl resumed>) = 0 [pid 5890] close(16 [pid 5893] setpgid(0, 0 [pid 5890] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] newfstatat(AT_FDCWD, "./0/cgroup.cpu", [pid 5893] <... setpgid resumed>) = 0 [pid 5892] <... close resumed>) = 0 [pid 5890] close(17 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5893] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5892] close(5 [pid 5891] <... close resumed>) = 0 [pid 5890] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] unlink("./0/cgroup.cpu" [pid 5893] <... symlink resumed>) = 0 [pid 5892] <... close resumed>) = 0 [pid 5891] close(4 [pid 5890] close(18 [pid 5873] <... unlink resumed>) = 0 [pid 5893] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5891] <... close resumed>) = 0 [pid 5890] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5893] <... symlink resumed>) = 0 [pid 5892] close(6 [pid 5891] close(5 [pid 5890] close(19 [pid 5873] umount2("./0/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5893] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5891] <... close resumed>) = 0 [pid 5890] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5893] <... symlink resumed>) = 0 [pid 5891] close(6 [pid 5890] close(20 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5893] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5892] <... close resumed>) = 0 [pid 5891] <... close resumed>) = 0 [pid 5890] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] newfstatat(AT_FDCWD, "./0/cgroup", [pid 5890] close(21 [pid 5893] <... openat resumed>) = 3 [pid 5890] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5893] write(3, "1000", 4 [pid 5892] close(7 [pid 5891] close(7 [pid 5890] close(22 [pid 5893] <... write resumed>) = 4 [pid 5892] <... close resumed>) = 0 [pid 5891] <... close resumed>) = 0 [pid 5890] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] unlink("./0/cgroup" [pid 5893] close(3 [pid 5892] close(8 [pid 5891] close(8 [pid 5890] close(23 [pid 5893] <... close resumed>) = 0 [pid 5891] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5890] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5893] read(200, [pid 5891] close(9 [pid 5890] close(24 [pid 5873] <... unlink resumed>) = 0 [pid 5893] <... read resumed>"\x33\x33\x00\x00\x00\x16\xaa\xaa\xaa\xaa\xaa\xaa\x86\xdd\x60\x00\x00\x00\x00\x38\x00\x01\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xaa\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x16\x3a\x00\x05\x02\x00\x00\x01\x00\x8f\x00\xc2\x46\x00\x00\x00\x02\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\xff\xaa\xaa\xaa\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00"..., 1000) = 110 [pid 5891] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5890] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5893] read(200, [pid 5892] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5891] close(10 [pid 5890] close(25 [pid 5873] getdents64(3, [pid 5893] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5892] close(9 [pid 5891] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5890] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5893] symlink("/dev/binderfs", "./binderfs" [pid 5892] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5891] close(11 [pid 5890] close(26 [pid 5873] close(3 [pid 5893] <... symlink resumed>) = 0 [pid 5892] close(10 [pid 5891] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5890] <... close resumed>) = -1 EBADF (Bad file descriptor) executing program [pid 5892] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... close resumed>) = 0 [pid 5892] close(11 [pid 5873] rmdir("./0" [pid 5893] write(1, "executing program\n", 18 [pid 5892] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5891] close(12 [pid 5890] close(27 [pid 5893] <... write resumed>) = 18 [pid 5892] close(12 [pid 5891] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5890] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... rmdir resumed>) = 0 [pid 5893] perf_event_open( [pid 5892] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5891] close(13 [pid 5890] close(28 [pid 5892] close(13 [pid 5873] mkdir("./1", 0777 [pid 5893] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5892] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5891] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5890] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... mkdir resumed>) = 0 [pid 5893] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5892] close(14 [pid 5891] close(14 [pid 5890] close(29 [pid 5893] <... bpf resumed>) = 4 [pid 5892] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5891] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5890] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5893] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5892] close(15 [pid 5891] close(15 [pid 5892] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5892] close(16) = -1 EBADF (Bad file descriptor) [pid 5892] close(17) = -1 EBADF (Bad file descriptor) [pid 5892] close(18) = -1 EBADF (Bad file descriptor) [pid 5892] close(19 [pid 5893] <... bpf resumed>) = 5 [pid 5892] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5891] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5892] close(20 [pid 5890] exit_group(0 [pid 5892] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5892] close(21) = -1 EBADF (Bad file descriptor) [pid 5892] close(22) = -1 EBADF (Bad file descriptor) [pid 5892] close(23 [pid 5890] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5894 attached [pid 5893] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5892] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5891] close(16) = -1 EBADF (Bad file descriptor) [pid 5894] set_robust_list(0x5555947fb660, 24 [pid 5892] close(24 [pid 5891] close(17 [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 3 [pid 5894] <... set_robust_list resumed>) = 0 [pid 5892] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5891] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5894] chdir("./1" [pid 5893] <... bpf resumed>) = 6 [pid 5892] close(25 [pid 5891] close(18 [pid 5894] <... chdir resumed>) = 0 [pid 5893] perf_event_open( [pid 5892] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5891] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5890] +++ exited with 0 +++ [pid 5894] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5893] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5892] close(26 [pid 5891] close(19 [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5894] <... prctl resumed>) = 0 [pid 5893] close(3 [pid 5891] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5894] setpgid(0, 0 [pid 5892] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5891] close(20 [pid 5892] close(27 [pid 5891] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5891] close(21 [pid 5892] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5891] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5894] <... setpgid resumed>) = 0 [pid 5892] close(28 [pid 5891] close(22 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5891] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5891] close(23 [pid 5874] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5894] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5891] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... openat resumed>) = 3 [pid 5891] close(24 [pid 5874] newfstatat(3, "", [pid 5892] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5891] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5892] close(29 [pid 5891] close(25 [pid 5892] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5894] <... symlink resumed>) = 0 [pid 5891] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] getdents64(3, [pid 5892] exit_group(0 [pid 5891] close(26 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5892] <... exit_group resumed>) = ? [pid 5891] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5891] close(27 [pid 5874] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5891] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5891] close(28 [pid 5874] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5891] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5891] close(29 [pid 5874] unlink("./0/binderfs" [pid 5891] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... unlink resumed>) = 0 [pid 5891] exit_group(0 [pid 5894] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5893] <... close resumed>) = 0 [pid 5892] +++ exited with 0 +++ [pid 5891] <... exit_group resumed>) = ? [pid 5874] umount2("./0/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5894] <... symlink resumed>) = 0 [pid 5894] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5893] close(4 [pid 5891] +++ exited with 0 +++ [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5894] <... symlink resumed>) = 0 [pid 5874] newfstatat(AT_FDCWD, "./0/cgroup.net", [pid 5894] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5893] <... close resumed>) = 0 [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5893] close(5 [pid 5877] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] restart_syscall(<... resuming interrupted clone ...> [pid 5874] unlink("./0/cgroup.net" [pid 5894] <... openat resumed>) = 3 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5893] <... close resumed>) = 0 [pid 5877] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5894] write(3, "1000", 4 [pid 5893] close(6 [pid 5877] <... openat resumed>) = 3 [pid 5874] <... unlink resumed>) = 0 [pid 5894] <... write resumed>) = 4 [pid 5893] <... close resumed>) = 0 [pid 5894] close(3 [pid 5877] newfstatat(3, "", [pid 5876] <... restart_syscall resumed>) = 0 [pid 5874] umount2("./0/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5894] <... close resumed>) = 0 [pid 5893] close(7 [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5894] read(200, [pid 5893] <... close resumed>) = 0 [pid 5877] getdents64(3, [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5894] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5893] close(8 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5894] symlink("/dev/binderfs", "./binderfs" [pid 5893] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] newfstatat(AT_FDCWD, "./0/cgroup.cpu", [pid 5894] <... symlink resumed>) = 0 [pid 5893] close(9 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 executing program [pid 5894] write(1, "executing program\n", 18 [pid 5893] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./1/binderfs", [pid 5876] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5874] unlink("./0/cgroup.cpu" [pid 5894] <... write resumed>) = 18 [pid 5893] close(10 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5894] perf_event_open( [pid 5893] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./1/binderfs" [pid 5893] close(11 [pid 5877] <... unlink resumed>) = 0 [pid 5893] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./1/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5893] close(12 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] <... unlink resumed>) = 0 [pid 5893] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./1/cgroup.net", [pid 5893] close(13) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5893] close(14 [pid 5877] unlink("./1/cgroup.net" [pid 5893] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 5876] <... openat resumed>) = 3 [pid 5874] umount2("./0/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5894] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5893] close(15 [pid 5877] umount2("./1/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] newfstatat(3, "", [pid 5894] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5893] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5874] newfstatat(AT_FDCWD, "./0/cgroup", [pid 5894] <... bpf resumed>) = 4 [pid 5893] close(16 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] getdents64(3, [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5894] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5893] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./1/cgroup.cpu", [pid 5893] close(17 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5874] unlink("./0/cgroup" [pid 5894] <... bpf resumed>) = 5 [pid 5893] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... unlink resumed>) = 0 [pid 5894] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5893] close(18 [pid 5877] unlink("./1/cgroup.cpu" [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] getdents64(3, [pid 5893] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(AT_FDCWD, "./1/binderfs", [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5894] <... bpf resumed>) = 6 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] unlink("./1/binderfs" [pid 5874] close(3 [pid 5877] <... unlink resumed>) = 0 [pid 5893] close(19 [pid 5876] <... unlink resumed>) = 0 [pid 5874] <... close resumed>) = 0 [pid 5876] umount2("./1/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5874] rmdir("./0" [pid 5894] perf_event_open( [pid 5893] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./1/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5893] close(20 [pid 5876] newfstatat(AT_FDCWD, "./1/cgroup.net", [pid 5874] <... rmdir resumed>) = 0 [pid 5893] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] unlink("./1/cgroup.net" [pid 5874] mkdir("./1", 0777 [pid 5894] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5893] close(21 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] <... unlink resumed>) = 0 [pid 5893] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... mkdir resumed>) = 0 [pid 5893] close(22 [pid 5877] newfstatat(AT_FDCWD, "./1/cgroup", [pid 5894] close(3 [pid 5893] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5893] close(23) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./1/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5893] close(24 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5893] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5893] close(25 [pid 5877] unlink("./1/cgroup" [pid 5876] newfstatat(AT_FDCWD, "./1/cgroup.cpu", [pid 5893] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5895 attached [pid 5893] close(26 [pid 5877] <... unlink resumed>) = 0 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5895] set_robust_list(0x5555947fb660, 24 [pid 5893] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] unlink("./1/cgroup.cpu" [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 3 [pid 5895] <... set_robust_list resumed>) = 0 [pid 5893] close(27 [pid 5877] getdents64(3, [pid 5893] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5893] close(28 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5893] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] close(3 [pid 5876] <... unlink resumed>) = 0 [pid 5893] close(29) = -1 EBADF (Bad file descriptor) [pid 5877] <... close resumed>) = 0 [pid 5893] exit_group(0 [pid 5877] rmdir("./1" [pid 5893] <... exit_group resumed>) = ? [pid 5876] umount2("./1/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5895] chdir("./1" [pid 5877] <... rmdir resumed>) = 0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5895] <... chdir resumed>) = 0 [pid 5877] mkdir("./2", 0777 [pid 5876] newfstatat(AT_FDCWD, "./1/cgroup", [pid 5895] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5877] <... mkdir resumed>) = 0 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5895] <... prctl resumed>) = 0 [pid 5893] +++ exited with 0 +++ [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5876] unlink("./1/cgroup" [pid 5895] setpgid(0, 0 [pid 5876] <... unlink resumed>) = 0 [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5895] <... setpgid resumed>) = 0 [pid 5875] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 5896 attached [pid 5895] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5876] getdents64(3, [pid 5896] set_robust_list(0x5555947fb660, 24 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5896] <... set_robust_list resumed>) = 0 [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 4 [pid 5896] chdir("./2" [pid 5895] <... symlink resumed>) = 0 [pid 5876] close(3 [pid 5896] <... chdir resumed>) = 0 [pid 5895] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5876] <... close resumed>) = 0 [pid 5896] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5896] setpgid(0, 0 [pid 5876] rmdir("./1" [pid 5896] <... setpgid resumed>) = 0 [pid 5895] <... symlink resumed>) = 0 [pid 5876] <... rmdir resumed>) = 0 [pid 5896] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5876] mkdir("./2", 0777 [pid 5895] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5896] <... symlink resumed>) = 0 [pid 5895] <... symlink resumed>) = 0 [pid 5894] <... close resumed>) = 0 [pid 5876] <... mkdir resumed>) = 0 [pid 5875] <... restart_syscall resumed>) = 0 [pid 5896] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5895] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5894] close(4 [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5896] <... symlink resumed>) = 0 [pid 5894] <... close resumed>) = 0 [pid 5896] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5895] <... openat resumed>) = 3 [pid 5894] close(5) = 0 ./strace-static-x86_64: Process 5897 attached [pid 5896] <... symlink resumed>) = 0 [pid 5875] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5896] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5895] write(3, "1000", 4 [pid 5894] close(6 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 4 [pid 5897] set_robust_list(0x5555947fb660, 24 [pid 5896] <... openat resumed>) = 3 [pid 5895] <... write resumed>) = 4 [pid 5875] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5897] <... set_robust_list resumed>) = 0 [pid 5896] write(3, "1000", 4 [pid 5895] close(3 [pid 5894] <... close resumed>) = 0 [pid 5896] <... write resumed>) = 4 [pid 5895] <... close resumed>) = 0 [pid 5875] <... openat resumed>) = 3 [pid 5897] chdir("./2" [pid 5875] newfstatat(3, "", [pid 5897] <... chdir resumed>) = 0 [pid 5897] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5896] close(3 [pid 5895] read(200, [pid 5894] close(7 [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5897] <... prctl resumed>) = 0 [pid 5896] <... close resumed>) = 0 [pid 5895] <... read resumed>"\x33\x33\x00\x00\x00\x16\xaa\xaa\xaa\xaa\xaa\xaa\x86\xdd\x60\x00\x00\x00\x00\x38\x00\x01\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xaa\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x16\x3a\x00\x05\x02\x00\x00\x01\x00\x8f\x00\xc2\x46\x00\x00\x00\x02\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\xff\xaa\xaa\xaa\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00"..., 1000) = 110 [pid 5894] <... close resumed>) = 0 [pid 5897] setpgid(0, 0 [pid 5896] read(200, [pid 5895] read(200, [pid 5896] <... read resumed>"\x33\x33\x00\x00\x00\x16\xaa\xaa\xaa\xaa\xaa\xaa\x86\xdd\x60\x00\x00\x00\x00\x38\x00\x01\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xaa\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x16\x3a\x00\x05\x02\x00\x00\x01\x00\x8f\x00\xc2\x46\x00\x00\x00\x02\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\xff\xaa\xaa\xaa\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00"..., 1000) = 110 [pid 5895] <... read resumed>"\x33\x33\x00\x00\x00\x16\xaa\xaa\xaa\xaa\xaa\xaa\x86\xdd\x60\x00\x00\x00\x00\x38\x00\x01\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xaa\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x16\x3a\x00\x05\x02\x00\x00\x01\x00\x8f\x00\xc2\x46\x00\x00\x00\x02\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\xff\xaa\xaa\xaa\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00"..., 1000) = 110 [pid 5894] close(8 [pid 5896] read(200, [pid 5895] read(200, [pid 5894] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5896] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5895] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5894] close(9 [pid 5896] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 5894] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5895] symlink("/dev/binderfs", "./binderfs" [pid 5894] close(10 [pid 5896] write(1, "executing program\n", 18 [pid 5895] <... symlink resumed>) = 0 [pid 5894] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] getdents64(3, [pid 5897] <... setpgid resumed>) = 0 [pid 5896] <... write resumed>) = 18 [pid 5895] write(1, "executing program\n", 18 [pid 5894] close(11 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5896] perf_event_open(executing program [pid 5895] <... write resumed>) = 18 [pid 5894] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5897] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5875] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5895] perf_event_open( [pid 5894] close(12 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5897] <... symlink resumed>) = 0 [pid 5896] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5894] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(AT_FDCWD, "./1/binderfs", [pid 5897] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5896] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5895] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5894] close(13 [pid 5897] <... symlink resumed>) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5897] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5875] unlink("./1/binderfs" [pid 5896] <... bpf resumed>) = 4 [pid 5895] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5894] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 [pid 5897] <... symlink resumed>) = 0 [pid 5896] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5895] <... bpf resumed>) = 4 [pid 5894] close(14 [pid 5897] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5895] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5894] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./1/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5894] close(15 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5897] <... openat resumed>) = 3 [pid 5896] <... bpf resumed>) = 5 [pid 5895] <... bpf resumed>) = 5 [pid 5894] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(AT_FDCWD, "./1/cgroup.net", [pid 5897] write(3, "1000", 4 [pid 5895] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5894] close(16 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5897] <... write resumed>) = 4 [pid 5896] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5895] <... bpf resumed>) = 6 [pid 5894] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] unlink("./1/cgroup.net" [pid 5897] close(3 [pid 5896] <... bpf resumed>) = 6 [pid 5894] close(17 [pid 5875] <... unlink resumed>) = 0 [pid 5897] <... close resumed>) = 0 [pid 5896] perf_event_open( [pid 5895] perf_event_open( [pid 5894] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./1/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5897] read(200, [pid 5896] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5895] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5894] close(18 [pid 5896] close(3 [pid 5894] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5897] <... read resumed>"\x33\x33\x00\x00\x00\x16\xaa\xaa\xaa\xaa\xaa\xaa\x86\xdd\x60\x00\x00\x00\x00\x38\x00\x01\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xaa\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x16\x3a\x00\x05\x02\x00\x00\x01\x00\x8f\x00\xc2\x46\x00\x00\x00\x02\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\xff\xaa\xaa\xaa\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00"..., 1000) = 110 [pid 5895] close(3 [pid 5894] close(19 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5897] read(200, [pid 5894] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5897] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5896] <... close resumed>) = 0 [pid 5894] close(20 [pid 5875] newfstatat(AT_FDCWD, "./1/cgroup.cpu", [pid 5897] symlink("/dev/binderfs", "./binderfs" [pid 5896] close(4 [pid 5894] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5894] close(21 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5894] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] unlink("./1/cgroup.cpu" [pid 5894] close(22 [pid 5896] <... close resumed>) = 0 [pid 5894] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5894] close(23) = -1 EBADF (Bad file descriptor) [pid 5894] close(24 [pid 5875] <... unlink resumed>) = 0 [pid 5896] close(5 [pid 5894] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5894] close(25) = -1 EBADF (Bad file descriptor) [pid 5894] close(26) = -1 EBADF (Bad file descriptor) [pid 5894] close(27) = -1 EBADF (Bad file descriptor) [pid 5894] close(28) = -1 EBADF (Bad file descriptor) [pid 5894] close(29) = -1 EBADF (Bad file descriptor) [pid 5897] <... symlink resumed>) = 0 [pid 5894] exit_group(0) = ? [pid 5897] write(1, "executing program\n", 18 [pid 5896] <... close resumed>) = 0 [pid 5894] +++ exited with 0 +++ [pid 5875] umount2("./1/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5896] close(6 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5897] <... write resumed>) = 18 [pid 5897] perf_event_open( [pid 5896] <... close resumed>) = 0 [pid 5875] newfstatat(AT_FDCWD, "./1/cgroup", [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 5896] close(7 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] restart_syscall(<... resuming interrupted clone ...> [pid 5875] unlink("./1/cgroup" [pid 5896] <... close resumed>) = 0 [pid 5896] close(8) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 [pid 5875] getdents64(3, [pid 5873] <... restart_syscall resumed>) = 0 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5875] close(3 [pid 5896] close(9) = -1 EBADF (Bad file descriptor) [pid 5875] <... close resumed>) = 0 [pid 5896] close(10) = -1 EBADF (Bad file descriptor) [pid 5896] close(11 [pid 5875] rmdir("./1" [pid 5896] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5896] close(12 [pid 5875] <... rmdir resumed>) = 0 [pid 5873] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5896] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] mkdir("./2", 0777 [pid 5896] close(13 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5896] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... mkdir resumed>) = 0 [pid 5873] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5896] close(14 [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5896] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5896] close(15./strace-static-x86_64: Process 5898 attached [pid 5873] <... openat resumed>) = 3 [pid 5898] set_robust_list(0x5555947fb660, 24 [pid 5896] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 4 [pid 5898] <... set_robust_list resumed>) = 0 [pid 5896] close(16) = -1 EBADF (Bad file descriptor) [pid 5898] chdir("./2" [pid 5896] close(17 [pid 5873] newfstatat(3, "", [pid 5896] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5896] close(18 [pid 5898] <... chdir resumed>) = 0 [pid 5896] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] getdents64(3, [pid 5898] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5896] close(19 [pid 5898] <... prctl resumed>) = 0 [pid 5896] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5898] setpgid(0, 0) = 0 [pid 5896] close(20 [pid 5898] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5896] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5896] close(21) = -1 EBADF (Bad file descriptor) [pid 5896] close(22) = -1 EBADF (Bad file descriptor) [pid 5896] close(23) = -1 EBADF (Bad file descriptor) [pid 5896] close(24) = -1 EBADF (Bad file descriptor) [pid 5898] <... symlink resumed>) = 0 [pid 5896] close(25 [pid 5873] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5898] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5896] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5898] <... symlink resumed>) = 0 [pid 5896] close(26 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] newfstatat(AT_FDCWD, "./1/binderfs", [pid 5896] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5895] <... close resumed>) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5898] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5897] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5896] close(27 [pid 5895] close(4 [pid 5873] unlink("./1/binderfs" [pid 5898] <... symlink resumed>) = 0 [pid 5896] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5895] <... close resumed>) = 0 [pid 5873] <... unlink resumed>) = 0 [pid 5897] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5898] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5896] close(28 [pid 5895] close(5 [pid 5873] umount2("./1/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5898] <... openat resumed>) = 3 [pid 5896] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5897] <... bpf resumed>) = 4 [pid 5895] <... close resumed>) = 0 [pid 5873] newfstatat(AT_FDCWD, "./1/cgroup.net", [pid 5898] write(3, "1000", 4 [pid 5896] close(29 [pid 5898] <... write resumed>) = 4 [pid 5897] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5896] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5895] close(6 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5898] close(3 [pid 5896] exit_group(0 [pid 5873] unlink("./1/cgroup.net" [pid 5896] <... exit_group resumed>) = ? [pid 5873] <... unlink resumed>) = 0 [pid 5873] umount2("./1/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5895] <... close resumed>) = 0 [pid 5898] <... close resumed>) = 0 [pid 5873] newfstatat(AT_FDCWD, "./1/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5895] close(7 [pid 5873] unlink("./1/cgroup.cpu") = 0 [pid 5873] umount2("./1/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5896] +++ exited with 0 +++ [pid 5898] read(200, [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5898] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5895] <... close resumed>) = 0 [pid 5898] symlink("/dev/binderfs", "./binderfs" [pid 5897] <... bpf resumed>) = 5 [pid 5895] close(8 [pid 5898] <... symlink resumed>) = 0 [pid 5897] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5895] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5873] newfstatat(AT_FDCWD, "./1/cgroup", executing program [pid 5898] write(1, "executing program\n", 18 [pid 5895] close(9 [pid 5877] restart_syscall(<... resuming interrupted clone ...> [pid 5898] <... write resumed>) = 18 [pid 5897] <... bpf resumed>) = 6 [pid 5895] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5898] perf_event_open( [pid 5897] perf_event_open( [pid 5895] close(10 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5898] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5895] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] unlink("./1/cgroup" [pid 5898] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5897] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5895] close(11 [pid 5873] <... unlink resumed>) = 0 [pid 5898] <... bpf resumed>) = 4 [pid 5897] close(3 [pid 5895] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... restart_syscall resumed>) = 0 [pid 5898] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5895] close(12 [pid 5873] getdents64(3, [pid 5895] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5895] close(13) = -1 EBADF (Bad file descriptor) [pid 5895] close(14) = -1 EBADF (Bad file descriptor) [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5895] close(15) = -1 EBADF (Bad file descriptor) [pid 5873] close(3 [pid 5895] close(16) = -1 EBADF (Bad file descriptor) [pid 5895] close(17 [pid 5898] <... bpf resumed>) = 5 [pid 5895] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5895] close(18) = -1 EBADF (Bad file descriptor) [pid 5895] close(19) = -1 EBADF (Bad file descriptor) [pid 5898] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5895] close(20 [pid 5898] <... bpf resumed>) = 6 [pid 5877] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... close resumed>) = 0 [pid 5895] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] rmdir("./1" [pid 5898] perf_event_open( [pid 5895] close(21 [pid 5898] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5895] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5895] close(22 [pid 5898] close(3 [pid 5895] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5895] close(23) = -1 EBADF (Bad file descriptor) [pid 5895] close(24 [pid 5897] <... close resumed>) = 0 [pid 5895] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5873] <... rmdir resumed>) = 0 [pid 5895] close(25) = -1 EBADF (Bad file descriptor) [pid 5877] <... openat resumed>) = 3 [pid 5895] close(26 [pid 5873] mkdir("./2", 0777 [pid 5897] close(4 [pid 5895] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(3, "", [pid 5895] close(27) = -1 EBADF (Bad file descriptor) [pid 5873] <... mkdir resumed>) = 0 [pid 5895] close(28) = -1 EBADF (Bad file descriptor) [pid 5895] close(29 [pid 5897] <... close resumed>) = 0 [pid 5895] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5895] exit_group(0) = ? [pid 5897] close(5 [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5897] <... close resumed>) = 0 [pid 5877] getdents64(3, 0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5897] close(6 [pid 5877] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5877] newfstatat(AT_FDCWD, "./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 5899 attached [pid 5897] <... close resumed>) = 0 [pid 5877] unlink("./2/binderfs" [pid 5899] set_robust_list(0x5555947fb660, 24 [pid 5895] +++ exited with 0 +++ [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 4 [pid 5899] <... set_robust_list resumed>) = 0 [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5899] chdir("./2" [pid 5897] close(7 [pid 5874] restart_syscall(<... resuming interrupted clone ...> [pid 5877] <... unlink resumed>) = 0 [pid 5899] <... chdir resumed>) = 0 [pid 5897] <... close resumed>) = 0 [pid 5877] umount2("./2/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5897] close(8 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5899] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5897] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5899] <... prctl resumed>) = 0 [pid 5899] setpgid(0, 0 [pid 5898] <... close resumed>) = 0 [pid 5897] close(9 [pid 5877] newfstatat(AT_FDCWD, "./2/cgroup.net", [pid 5899] <... setpgid resumed>) = 0 [pid 5898] close(4 [pid 5897] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5898] <... close resumed>) = 0 [pid 5897] close(10 [pid 5898] close(5 [pid 5897] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./2/cgroup.net" [pid 5899] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5898] <... close resumed>) = 0 [pid 5877] <... unlink resumed>) = 0 [pid 5897] close(11 [pid 5898] close(6 [pid 5897] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./2/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5899] <... symlink resumed>) = 0 [pid 5898] <... close resumed>) = 0 [pid 5897] close(12 [pid 5899] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5898] close(7 [pid 5897] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... restart_syscall resumed>) = 0 [pid 5899] <... symlink resumed>) = 0 [pid 5897] close(13 [pid 5899] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5898] <... close resumed>) = 0 [pid 5897] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./2/cgroup.cpu", [pid 5899] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5898] close(8 [pid 5897] close(14 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5898] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5897] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./2/cgroup.cpu" [pid 5898] close(9 [pid 5897] close(15 [pid 5899] <... openat resumed>) = 3 [pid 5898] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5897] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5899] write(3, "1000", 4 [pid 5898] close(10 [pid 5897] close(16 [pid 5877] <... unlink resumed>) = 0 [pid 5874] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5899] <... write resumed>) = 4 [pid 5898] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5897] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./2/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5899] close(3 [pid 5898] close(11 [pid 5897] close(17 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] <... openat resumed>) = 3 [pid 5899] <... close resumed>) = 0 [pid 5898] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5897] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./2/cgroup", [pid 5874] newfstatat(3, "", [pid 5899] read(200, [pid 5898] close(12 [pid 5897] close(18 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5897] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5897] close(19 [pid 5877] unlink("./2/cgroup" [pid 5897] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5899] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5898] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5897] close(20 [pid 5899] symlink("/dev/binderfs", "./binderfs" [pid 5898] close(13 [pid 5877] <... unlink resumed>) = 0 [pid 5899] <... symlink resumed>) = 0 [pid 5898] <... close resumed>) = -1 EBADF (Bad file descriptor) executing program [pid 5899] write(1, "executing program\n", 18 [pid 5898] close(14 [pid 5897] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] getdents64(3, [pid 5874] getdents64(3, [pid 5899] <... write resumed>) = 18 [pid 5898] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5897] close(21 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5899] perf_event_open( [pid 5898] close(15 [pid 5897] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] close(3 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5898] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5897] close(22 [pid 5877] <... close resumed>) = 0 [pid 5874] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5899] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5898] close(16 [pid 5897] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] rmdir("./2" [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5899] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5898] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5897] close(23 [pid 5877] <... rmdir resumed>) = 0 [pid 5874] newfstatat(AT_FDCWD, "./1/binderfs", [pid 5899] <... bpf resumed>) = 4 [pid 5899] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5898] close(17 [pid 5897] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] mkdir("./3", 0777 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5898] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5897] close(24 [pid 5877] <... mkdir resumed>) = 0 [pid 5874] unlink("./1/binderfs" [pid 5898] close(18 [pid 5897] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5874] <... unlink resumed>) = 0 [pid 5899] <... bpf resumed>) = 5 [pid 5898] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5897] close(25./strace-static-x86_64: Process 5900 attached [pid 5899] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5898] close(19 [pid 5897] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./1/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5900] set_robust_list(0x5555947fb660, 24 [pid 5898] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5897] close(26 [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 5 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5900] <... set_robust_list resumed>) = 0 [pid 5898] close(20 [pid 5897] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5900] chdir("./3" [pid 5899] <... bpf resumed>) = 6 [pid 5898] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5897] close(27 [pid 5874] newfstatat(AT_FDCWD, "./1/cgroup.net", [pid 5900] <... chdir resumed>) = 0 [pid 5899] perf_event_open( [pid 5898] close(21 [pid 5897] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5900] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5898] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5897] close(28 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5900] <... prctl resumed>) = 0 [pid 5899] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5898] close(22 [pid 5897] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5900] setpgid(0, 0 [pid 5898] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5897] close(29 [pid 5900] <... setpgid resumed>) = 0 [pid 5898] close(23 [pid 5897] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5900] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5899] close(3 [pid 5874] unlink("./1/cgroup.net" [pid 5900] <... symlink resumed>) = 0 [pid 5898] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5897] exit_group(0 [pid 5874] <... unlink resumed>) = 0 [pid 5898] close(24 [pid 5900] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5898] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5897] <... exit_group resumed>) = ? [pid 5900] <... symlink resumed>) = 0 [pid 5898] close(25 [pid 5897] +++ exited with 0 +++ [pid 5874] umount2("./1/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5900] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5898] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] newfstatat(AT_FDCWD, "./1/cgroup.cpu", [pid 5900] <... symlink resumed>) = 0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5898] close(26 [pid 5900] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5898] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5900] <... openat resumed>) = 3 [pid 5898] close(27) = -1 EBADF (Bad file descriptor) [pid 5874] unlink("./1/cgroup.cpu" [pid 5900] write(3, "1000", 4 [pid 5898] close(28 [pid 5900] <... write resumed>) = 4 [pid 5898] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... unlink resumed>) = 0 [pid 5900] close(3 [pid 5898] close(29 [pid 5900] <... close resumed>) = 0 [pid 5898] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5900] read(200, [pid 5898] exit_group(0 [pid 5900] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5898] <... exit_group resumed>) = ? [pid 5900] symlink("/dev/binderfs", "./binderfs" [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] umount2("./1/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5900] <... symlink resumed>) = 0 [pid 5876] <... openat resumed>) = 3 [pid 5874] newfstatat(AT_FDCWD, "./1/cgroup", [pid 5900] write(1, "executing program\n", 18executing program [pid 5898] +++ exited with 0 +++ [pid 5876] newfstatat(3, "", [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5900] <... write resumed>) = 18 [pid 5900] perf_event_open( [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5874] unlink("./1/cgroup" [pid 5876] getdents64(3, [pid 5875] restart_syscall(<... resuming interrupted clone ...> [pid 5874] <... unlink resumed>) = 0 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5876] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] getdents64(3, [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5876] newfstatat(AT_FDCWD, "./2/binderfs", [pid 5900] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5899] <... close resumed>) = 0 [pid 5875] <... restart_syscall resumed>) = 0 [pid 5874] close(3 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] <... close resumed>) = 0 [pid 5900] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5899] close(4 [pid 5876] unlink("./2/binderfs" [pid 5874] rmdir("./1" [pid 5900] <... bpf resumed>) = 4 [pid 5900] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5876] <... unlink resumed>) = 0 [pid 5875] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... rmdir resumed>) = 0 [pid 5899] <... close resumed>) = 0 [pid 5876] umount2("./2/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] mkdir("./2", 0777 [pid 5899] close(5 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5874] <... mkdir resumed>) = 0 [pid 5876] newfstatat(AT_FDCWD, "./2/cgroup.net", [pid 5900] <... bpf resumed>) = 5 [pid 5899] <... close resumed>) = 0 [pid 5875] <... openat resumed>) = 3 [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5899] close(6 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] newfstatat(3, "", [pid 5900] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5899] <... close resumed>) = 0 [pid 5876] unlink("./2/cgroup.net" [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 5901 attached [pid 5876] <... unlink resumed>) = 0 [pid 5875] getdents64(3, [pid 5901] set_robust_list(0x5555947fb660, 24 [pid 5900] <... bpf resumed>) = 6 [pid 5876] umount2("./2/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 4 [pid 5899] close(7 [pid 5901] <... set_robust_list resumed>) = 0 [pid 5900] perf_event_open( [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5901] chdir("./2" [pid 5900] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5899] <... close resumed>) = 0 [pid 5876] newfstatat(AT_FDCWD, "./2/cgroup.cpu", [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5901] <... chdir resumed>) = 0 [pid 5900] close(3 [pid 5899] close(8 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] newfstatat(AT_FDCWD, "./2/binderfs", [pid 5901] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5899] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] unlink("./2/cgroup.cpu" [pid 5899] close(9) = -1 EBADF (Bad file descriptor) [pid 5899] close(10 [pid 5876] <... unlink resumed>) = 0 [pid 5899] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5899] close(11 [pid 5901] <... prctl resumed>) = 0 [pid 5899] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./2/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5901] setpgid(0, 0 [pid 5899] close(12 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5901] <... setpgid resumed>) = 0 [pid 5876] newfstatat(AT_FDCWD, "./2/cgroup", [pid 5875] unlink("./2/binderfs" [pid 5901] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5899] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5899] close(13 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5899] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 [pid 5901] <... symlink resumed>) = 0 [pid 5899] close(14 [pid 5875] umount2("./2/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5899] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5899] close(15 [pid 5876] unlink("./2/cgroup" [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5901] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5899] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5899] close(16) = -1 EBADF (Bad file descriptor) [pid 5899] close(17 [pid 5901] <... symlink resumed>) = 0 [pid 5899] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5899] close(18) = -1 EBADF (Bad file descriptor) [pid 5899] close(19) = -1 EBADF (Bad file descriptor) [pid 5899] close(20) = -1 EBADF (Bad file descriptor) [pid 5899] close(21) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 5875] newfstatat(AT_FDCWD, "./2/cgroup.net", [pid 5901] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5899] close(22 [pid 5876] getdents64(3, [pid 5899] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5899] close(23 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5901] <... symlink resumed>) = 0 [pid 5899] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] close(3 [pid 5901] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5899] close(24 [pid 5876] <... close resumed>) = 0 [pid 5875] unlink("./2/cgroup.net" [pid 5899] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] rmdir("./2" [pid 5901] <... openat resumed>) = 3 [pid 5875] <... unlink resumed>) = 0 [pid 5901] write(3, "1000", 4 [pid 5875] umount2("./2/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5901] <... write resumed>) = 4 [pid 5876] <... rmdir resumed>) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5899] close(25 [pid 5876] mkdir("./3", 0777 [pid 5899] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5901] close(3 [pid 5899] close(26 [pid 5875] newfstatat(AT_FDCWD, "./2/cgroup.cpu", [pid 5901] <... close resumed>) = 0 [pid 5876] <... mkdir resumed>) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5901] read(200, [pid 5875] unlink("./2/cgroup.cpu"executing program [pid 5901] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5899] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5875] <... unlink resumed>) = 0 [pid 5901] symlink("/dev/binderfs", "./binderfs" [pid 5875] umount2("./2/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5901] <... symlink resumed>) = 0 [pid 5899] close(27) = -1 EBADF (Bad file descriptor) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5899] close(28) = -1 EBADF (Bad file descriptor) [pid 5899] close(29) = -1 EBADF (Bad file descriptor) [pid 5901] write(1, "executing program\n", 18 [pid 5875] newfstatat(AT_FDCWD, "./2/cgroup", [pid 5901] <... write resumed>) = 18 [pid 5899] exit_group(0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5901] perf_event_open( [pid 5899] <... exit_group resumed>) = ? [pid 5875] unlink("./2/cgroup") = 0 [pid 5875] getdents64(3, 0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5875] close(3) = 0 [pid 5875] rmdir("./2") = 0 [pid 5875] mkdir("./3", 0777) = 0 [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5902 attached [pid 5901] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5900] <... close resumed>) = 0 [pid 5899] +++ exited with 0 +++ [pid 5902] set_robust_list(0x5555947fb660, 24 [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5902] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 5903 attached [pid 5902] chdir("./3" [pid 5901] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5900] close(4 [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 5 [pid 5873] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5903] set_robust_list(0x5555947fb660, 24 [pid 5902] <... chdir resumed>) = 0 [pid 5901] <... bpf resumed>) = 4 [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 5 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5873] newfstatat(3, "", [pid 5903] <... set_robust_list resumed>) = 0 [pid 5902] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5901] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5900] <... close resumed>) = 0 [pid 5903] chdir("./3" [pid 5902] <... prctl resumed>) = 0 [pid 5902] setpgid(0, 0 [pid 5900] close(5 [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5900] <... close resumed>) = 0 [pid 5873] getdents64(3, [pid 5900] close(6 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5901] <... bpf resumed>) = 5 [pid 5900] <... close resumed>) = 0 [pid 5873] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5900] close(7 [pid 5873] newfstatat(AT_FDCWD, "./2/binderfs", [pid 5903] <... chdir resumed>) = 0 [pid 5902] <... setpgid resumed>) = 0 [pid 5900] <... close resumed>) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5903] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5900] close(8 [pid 5873] unlink("./2/binderfs" [pid 5903] <... prctl resumed>) = 0 [pid 5902] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5900] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... unlink resumed>) = 0 [pid 5903] setpgid(0, 0 [pid 5900] close(9 [pid 5873] umount2("./2/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5903] <... setpgid resumed>) = 0 [pid 5902] <... symlink resumed>) = 0 [pid 5900] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5900] close(10 [pid 5873] newfstatat(AT_FDCWD, "./2/cgroup.net", [pid 5900] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5900] close(11) = -1 EBADF (Bad file descriptor) [pid 5873] unlink("./2/cgroup.net" [pid 5903] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5900] close(12 [pid 5902] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5903] <... symlink resumed>) = 0 [pid 5900] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... unlink resumed>) = 0 [pid 5900] close(13 [pid 5902] <... symlink resumed>) = 0 [pid 5900] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] umount2("./2/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5903] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5902] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5900] close(14 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5900] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5903] <... symlink resumed>) = 0 [pid 5900] close(15 [pid 5873] newfstatat(AT_FDCWD, "./2/cgroup.cpu", [pid 5901] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5900] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5902] <... symlink resumed>) = 0 [pid 5900] close(16 [pid 5903] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5902] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5900] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] unlink("./2/cgroup.cpu" [pid 5901] <... bpf resumed>) = 6 [pid 5900] close(17 [pid 5873] <... unlink resumed>) = 0 [pid 5900] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] umount2("./2/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5900] close(18 [pid 5903] <... symlink resumed>) = 0 [pid 5900] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5900] close(19 [pid 5873] newfstatat(AT_FDCWD, "./2/cgroup", [pid 5900] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5900] close(20 [pid 5873] unlink("./2/cgroup" [pid 5900] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... unlink resumed>) = 0 [pid 5900] close(21) = -1 EBADF (Bad file descriptor) [pid 5873] getdents64(3, [pid 5900] close(22) = -1 EBADF (Bad file descriptor) [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5900] close(23) = -1 EBADF (Bad file descriptor) [pid 5873] close(3 [pid 5900] close(24) = -1 EBADF (Bad file descriptor) [pid 5873] <... close resumed>) = 0 [pid 5900] close(25) = -1 EBADF (Bad file descriptor) [pid 5873] rmdir("./2" [pid 5900] close(26 [pid 5873] <... rmdir resumed>) = 0 [pid 5900] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5900] close(27 [pid 5903] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5902] <... openat resumed>) = 3 [pid 5901] perf_event_open( [pid 5873] mkdir("./3", 0777 [pid 5902] write(3, "1000", 4 [pid 5900] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5903] <... openat resumed>) = 3 [pid 5901] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5873] <... mkdir resumed>) = 0 [pid 5903] write(3, "1000", 4 [pid 5902] <... write resumed>) = 4 [pid 5900] close(28 [pid 5902] close(3 [pid 5901] close(3 [pid 5900] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5903] <... write resumed>) = 4 [pid 5902] <... close resumed>) = 0 [pid 5900] close(29 [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5903] close(3 [pid 5902] read(200, [pid 5900] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5905 attached [pid 5905] set_robust_list(0x5555947fb660, 24 [pid 5903] <... close resumed>) = 0 [pid 5902] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5903] read(200, [pid 5902] symlink("/dev/binderfs", "./binderfs" [pid 5905] <... set_robust_list resumed>) = 0 [pid 5903] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5902] <... symlink resumed>) = 0 [pid 5903] symlink("/dev/binderfs", "./binderfs" [pid 5902] write(1, "executing program\n", 18 [pid 5905] chdir("./3"executing program executing program ) = 0 [pid 5903] <... symlink resumed>) = 0 [pid 5902] <... write resumed>) = 18 [pid 5900] exit_group(0 [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 5 [pid 5905] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5902] perf_event_open( [pid 5900] <... exit_group resumed>) = ? [pid 5905] <... prctl resumed>) = 0 [pid 5903] write(1, "executing program\n", 18 [pid 5905] setpgid(0, 0 [pid 5903] <... write resumed>) = 18 [pid 5903] perf_event_open( [pid 5905] <... setpgid resumed>) = 0 [pid 5905] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5900] +++ exited with 0 +++ [pid 5905] <... symlink resumed>) = 0 [pid 5905] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5905] <... symlink resumed>) = 0 [pid 5905] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5877] umount2("./3", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5905] <... symlink resumed>) = 0 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5905] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5877] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5905] <... openat resumed>) = 3 [pid 5877] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5905] write(3, "1000", 4 [pid 5877] getdents64(3, 0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5905] <... write resumed>) = 4 [pid 5877] umount2("./3/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5905] close(3 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5905] <... close resumed>) = 0 [pid 5877] newfstatat(AT_FDCWD, "./3/binderfs", [pid 5905] read(200, [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5877] unlink("./3/binderfs" [pid 5905] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5877] <... unlink resumed>) = 0 [pid 5877] umount2("./3/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5905] symlink("/dev/binderfs", "./binderfs" [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] newfstatat(AT_FDCWD, "./3/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5905] <... symlink resumed>) = 0 [pid 5877] unlink("./3/cgroup.net") = 0 [pid 5877] umount2("./3/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5905] write(1, "executing program\n", 18 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] newfstatat(AT_FDCWD, "./3/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5877] unlink("./3/cgroup.cpu"executing program [pid 5905] <... write resumed>) = 18 [pid 5877] <... unlink resumed>) = 0 [pid 5877] umount2("./3/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5877] newfstatat(AT_FDCWD, "./3/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5877] unlink("./3/cgroup" [pid 5905] perf_event_open( [pid 5877] <... unlink resumed>) = 0 [pid 5877] getdents64(3, 0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5877] close(3) = 0 [pid 5877] rmdir("./3") = 0 [pid 5877] mkdir("./4", 0777 [pid 5905] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5903] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5902] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5901] <... close resumed>) = 0 [pid 5905] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5903] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5902] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5901] close(4 [pid 5877] <... mkdir resumed>) = 0 [pid 5905] <... bpf resumed>) = 4 [pid 5903] <... bpf resumed>) = 4 [pid 5905] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5902] <... bpf resumed>) = 4 [pid 5901] <... close resumed>) = 0 [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5903] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5902] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148./strace-static-x86_64: Process 5906 attached [pid 5903] <... bpf resumed>) = 5 [pid 5902] <... bpf resumed>) = 5 [pid 5901] close(5 [pid 5905] <... bpf resumed>) = 5 [pid 5902] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5906] set_robust_list(0x5555947fb660, 24 [pid 5905] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24) = 6 [pid 5902] <... bpf resumed>) = 6 [pid 5901] <... close resumed>) = 0 [pid 5901] close(6) = 0 [pid 5905] perf_event_open( [pid 5906] <... set_robust_list resumed>) = 0 [pid 5902] perf_event_open( [pid 5906] chdir("./4" [pid 5903] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5901] close(7 [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 6 [pid 5905] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5903] <... bpf resumed>) = 6 [pid 5902] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5906] <... chdir resumed>) = 0 [pid 5903] perf_event_open( [pid 5901] <... close resumed>) = 0 [pid 5905] close(3 [pid 5903] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5901] close(8 [pid 5902] close(3 [pid 5906] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5905] <... close resumed>) = 0 [pid 5903] close(3 [pid 5901] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5906] <... prctl resumed>) = 0 [pid 5905] close(4 [pid 5902] <... close resumed>) = 0 [pid 5901] close(9 [pid 5906] setpgid(0, 0 [pid 5901] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5905] <... close resumed>) = 0 [pid 5901] close(10 [pid 5906] <... setpgid resumed>) = 0 [pid 5905] close(5 [pid 5902] close(4 [pid 5901] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5901] close(11) = -1 EBADF (Bad file descriptor) [pid 5901] close(12) = -1 EBADF (Bad file descriptor) [pid 5905] <... close resumed>) = 0 [pid 5901] close(13) = -1 EBADF (Bad file descriptor) [pid 5901] close(14) = -1 EBADF (Bad file descriptor) [pid 5902] <... close resumed>) = 0 [pid 5901] close(15) = -1 EBADF (Bad file descriptor) [pid 5901] close(16) = -1 EBADF (Bad file descriptor) [pid 5901] close(17) = -1 EBADF (Bad file descriptor) [pid 5901] close(18) = -1 EBADF (Bad file descriptor) [pid 5901] close(19) = -1 EBADF (Bad file descriptor) [pid 5901] close(20) = -1 EBADF (Bad file descriptor) [pid 5905] close(6 [pid 5901] close(21 [pid 5906] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5901] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5901] close(22) = -1 EBADF (Bad file descriptor) [pid 5901] close(23) = -1 EBADF (Bad file descriptor) [pid 5901] close(24) = -1 EBADF (Bad file descriptor) [pid 5901] close(25) = -1 EBADF (Bad file descriptor) [pid 5901] close(26) = -1 EBADF (Bad file descriptor) [pid 5901] close(27) = -1 EBADF (Bad file descriptor) [pid 5901] close(28) = -1 EBADF (Bad file descriptor) [pid 5901] close(29) = -1 EBADF (Bad file descriptor) [pid 5902] close(5 [pid 5901] exit_group(0) = ? [pid 5906] <... symlink resumed>) = 0 [pid 5905] <... close resumed>) = 0 [pid 5902] <... close resumed>) = 0 [pid 5902] close(6 [pid 5906] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5905] close(7 [pid 5906] <... symlink resumed>) = 0 [pid 5905] <... close resumed>) = 0 [pid 5903] <... close resumed>) = 0 [pid 5901] +++ exited with 0 +++ [pid 5906] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5905] close(8 [pid 5903] close(4 [pid 5902] <... close resumed>) = 0 [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5905] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5902] close(7 [pid 5905] close(9) = -1 EBADF (Bad file descriptor) [pid 5905] close(10) = -1 EBADF (Bad file descriptor) [pid 5902] <... close resumed>) = 0 [pid 5905] close(11) = -1 EBADF (Bad file descriptor) [pid 5905] close(12) = -1 EBADF (Bad file descriptor) [pid 5905] close(13) = -1 EBADF (Bad file descriptor) [pid 5903] <... close resumed>) = 0 [pid 5905] close(14) = -1 EBADF (Bad file descriptor) [pid 5905] close(15) = -1 EBADF (Bad file descriptor) [pid 5905] close(16) = -1 EBADF (Bad file descriptor) [pid 5902] close(8 [pid 5906] <... symlink resumed>) = 0 [pid 5905] close(17 [pid 5903] close(5 [pid 5902] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5906] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5905] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5902] close(9 [pid 5903] <... close resumed>) = 0 [pid 5905] close(18 [pid 5902] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5905] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5903] close(6 [pid 5902] close(10 [pid 5874] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5874] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5906] <... openat resumed>) = 3 [pid 5905] close(19 [pid 5902] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... openat resumed>) = 3 [pid 5902] close(11 [pid 5874] newfstatat(3, "", [pid 5905] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5906] write(3, "1000", 4 [pid 5903] <... close resumed>) = 0 [pid 5902] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5906] <... write resumed>) = 4 [pid 5874] getdents64(3, [pid 5906] close(3 [pid 5905] close(20 [pid 5903] close(7 [pid 5902] close(12 [pid 5905] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5902] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5905] close(21 [pid 5902] close(13 [pid 5906] <... close resumed>) = 0 [pid 5905] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5903] <... close resumed>) = 0 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5902] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5906] read(200, [pid 5905] close(22 [pid 5903] close(8 [pid 5874] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5906] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5906] symlink("/dev/binderfs", "./binderfs" [pid 5874] newfstatat(AT_FDCWD, "./2/binderfs", [pid 5906] <... symlink resumed>) = 0 [pid 5905] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5903] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5902] close(14 [pid 5906] write(1, "executing program\n", 18 [pid 5905] close(23 [pid 5903] close(9 [pid 5902] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 executing program [pid 5906] <... write resumed>) = 18 [pid 5905] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5903] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5902] close(15 [pid 5874] unlink("./2/binderfs" [pid 5906] perf_event_open( [pid 5905] close(24 [pid 5903] close(10 [pid 5902] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5905] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5903] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5902] close(16 [pid 5905] close(25 [pid 5903] close(11 [pid 5902] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... unlink resumed>) = 0 [pid 5906] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5905] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5903] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5902] close(17 [pid 5874] umount2("./2/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5905] close(26 [pid 5902] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5906] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5905] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5903] close(12 [pid 5902] close(18 [pid 5903] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] newfstatat(AT_FDCWD, "./2/cgroup.net", [pid 5905] close(27 [pid 5902] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5905] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5902] close(19 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5905] close(28 [pid 5902] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5905] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5902] close(20 [pid 5906] <... bpf resumed>) = 4 [pid 5905] close(29 [pid 5903] close(13 [pid 5902] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] unlink("./2/cgroup.net" [pid 5905] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5906] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5905] exit_group(0 [pid 5903] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5902] close(21 [pid 5874] <... unlink resumed>) = 0 [pid 5905] <... exit_group resumed>) = ? [pid 5903] close(14 [pid 5902] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./2/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5903] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5903] close(15 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] newfstatat(AT_FDCWD, "./2/cgroup.cpu", [pid 5903] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5903] close(16 [pid 5902] close(22 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5902] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5902] close(23) = -1 EBADF (Bad file descriptor) [pid 5903] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5902] close(24 [pid 5874] unlink("./2/cgroup.cpu" [pid 5905] +++ exited with 0 +++ [pid 5903] close(17 [pid 5902] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5902] close(25) = -1 EBADF (Bad file descriptor) [pid 5902] close(26) = -1 EBADF (Bad file descriptor) [pid 5903] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5902] close(27) = -1 EBADF (Bad file descriptor) [pid 5903] close(18 [pid 5902] close(28 [pid 5874] <... unlink resumed>) = 0 [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5903] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5902] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./2/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5906] <... bpf resumed>) = 5 [pid 5903] close(19 [pid 5902] close(29 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5906] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5903] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5902] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] newfstatat(AT_FDCWD, "./2/cgroup", [pid 5906] <... bpf resumed>) = 6 [pid 5903] close(20 [pid 5902] exit_group(0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] umount2("./3", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5906] perf_event_open( [pid 5903] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5902] <... exit_group resumed>) = ? [pid 5906] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5903] close(21 [pid 5874] unlink("./2/cgroup" [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5906] close(3 [pid 5903] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... unlink resumed>) = 0 [pid 5903] close(22) = -1 EBADF (Bad file descriptor) [pid 5903] close(23 [pid 5902] +++ exited with 0 +++ [pid 5874] getdents64(3, [pid 5903] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5873] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5903] close(24 [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5874] close(3 [pid 5903] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./3", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5903] close(25 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] <... close resumed>) = 0 [pid 5873] <... openat resumed>) = 3 [pid 5903] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5874] rmdir("./2" [pid 5903] close(26 [pid 5876] <... openat resumed>) = 3 [pid 5873] newfstatat(3, "", [pid 5903] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5903] close(27 [pid 5876] newfstatat(3, "", [pid 5874] <... rmdir resumed>) = 0 [pid 5903] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5903] close(28 [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5874] mkdir("./3", 0777 [pid 5903] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] getdents64(3, [pid 5874] <... mkdir resumed>) = 0 [pid 5873] getdents64(3, [pid 5903] close(29 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5903] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./3/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5903] exit_group(0 [pid 5873] umount2("./3/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5907 attached [pid 5903] <... exit_group resumed>) = ? [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5907] set_robust_list(0x5555947fb660, 24 [pid 5906] <... close resumed>) = 0 [pid 5903] +++ exited with 0 +++ [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 5 [pid 5873] newfstatat(AT_FDCWD, "./3/binderfs", [pid 5907] <... set_robust_list resumed>) = 0 [pid 5906] close(4 [pid 5876] newfstatat(AT_FDCWD, "./3/binderfs", [pid 5907] chdir("./3" [pid 5906] <... close resumed>) = 0 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5907] <... chdir resumed>) = 0 [pid 5906] close(5 [pid 5876] unlink("./3/binderfs" [pid 5907] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5906] <... close resumed>) = 0 [pid 5876] <... unlink resumed>) = 0 [pid 5873] unlink("./3/binderfs" [pid 5907] <... prctl resumed>) = 0 [pid 5906] close(6 [pid 5876] umount2("./3/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5907] setpgid(0, 0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] umount2("./3", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... unlink resumed>) = 0 [pid 5907] <... setpgid resumed>) = 0 [pid 5906] <... close resumed>) = 0 [pid 5876] newfstatat(AT_FDCWD, "./3/cgroup.net", [pid 5906] close(7 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] umount2("./3/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5906] <... close resumed>) = 0 [pid 5875] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5906] close(8 [pid 5876] unlink("./3/cgroup.net" [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5906] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 5906] close(9) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./3/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5906] close(10 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5906] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5906] close(11 [pid 5876] newfstatat(AT_FDCWD, "./3/cgroup.cpu", [pid 5906] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5906] close(12 [pid 5876] unlink("./3/cgroup.cpu" [pid 5906] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 5906] close(13) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./3/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5906] close(14) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5906] close(15) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(AT_FDCWD, "./3/cgroup", [pid 5906] close(16 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5906] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] unlink("./3/cgroup" [pid 5906] close(17 [pid 5876] <... unlink resumed>) = 0 [pid 5907] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5906] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... openat resumed>) = 3 [pid 5873] newfstatat(AT_FDCWD, "./3/cgroup.net", [pid 5907] <... symlink resumed>) = 0 [pid 5906] close(18 [pid 5876] getdents64(3, [pid 5875] newfstatat(3, "", [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5907] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5906] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5873] unlink("./3/cgroup.net" [pid 5907] <... symlink resumed>) = 0 [pid 5906] close(19 [pid 5876] close(3 [pid 5875] getdents64(3, [pid 5907] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5906] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... close resumed>) = 0 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5873] <... unlink resumed>) = 0 [pid 5906] close(20 [pid 5876] rmdir("./3" [pid 5875] umount2("./3/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5907] <... symlink resumed>) = 0 [pid 5906] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... rmdir resumed>) = 0 [pid 5873] umount2("./3/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5907] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5906] close(21 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5906] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] mkdir("./4", 0777 [pid 5875] newfstatat(AT_FDCWD, "./3/binderfs", [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5907] <... openat resumed>) = 3 [pid 5906] close(22 [pid 5876] <... mkdir resumed>) = 0 [pid 5873] newfstatat(AT_FDCWD, "./3/cgroup.cpu", [pid 5906] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5907] write(3, "1000", 4 [pid 5906] close(23 [pid 5875] unlink("./3/binderfs" [pid 5906] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5907] <... write resumed>) = 4 [pid 5907] close(3./strace-static-x86_64: Process 5908 attached ) = 0 [pid 5906] close(24 [pid 5875] <... unlink resumed>) = 0 [pid 5873] unlink("./3/cgroup.cpu" [pid 5907] read(200, [pid 5906] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./3/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5907] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5873] <... unlink resumed>) = 0 [pid 5908] set_robust_list(0x5555947fb660, 24 [pid 5907] symlink("/dev/binderfs", "./binderfs" [pid 5906] close(25 [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 6 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] umount2("./3/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5908] <... set_robust_list resumed>) = 0 [pid 5907] <... symlink resumed>) = 0 [pid 5906] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(AT_FDCWD, "./3/cgroup.net", [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5908] chdir("./4" [pid 5906] close(26 [pid 5873] newfstatat(AT_FDCWD, "./3/cgroup", [pid 5908] <... chdir resumed>) = 0 [pid 5907] write(1, "executing program\n", 18 [pid 5906] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 executing program [pid 5908] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5906] close(27 [pid 5907] <... write resumed>) = 18 [pid 5875] unlink("./3/cgroup.net" [pid 5873] unlink("./3/cgroup" [pid 5908] <... prctl resumed>) = 0 [pid 5907] perf_event_open( [pid 5906] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 [pid 5873] <... unlink resumed>) = 0 [pid 5908] setpgid(0, 0 [pid 5906] close(28 [pid 5875] umount2("./3/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] getdents64(3, [pid 5908] <... setpgid resumed>) = 0 [pid 5906] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5908] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5906] close(29) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(AT_FDCWD, "./3/cgroup.cpu", [pid 5873] close(3 [pid 5908] <... symlink resumed>) = 0 [pid 5906] exit_group(0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5906] <... exit_group resumed>) = ? [pid 5875] unlink("./3/cgroup.cpu" [pid 5873] <... close resumed>) = 0 [pid 5908] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5907] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5875] <... unlink resumed>) = 0 [pid 5908] <... symlink resumed>) = 0 [pid 5907] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5908] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5906] +++ exited with 0 +++ [pid 5875] umount2("./3/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] rmdir("./3" [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... rmdir resumed>) = 0 [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5875] newfstatat(AT_FDCWD, "./3/cgroup", [pid 5873] mkdir("./4", 0777 [pid 5877] restart_syscall(<... resuming interrupted clone ...> [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... mkdir resumed>) = 0 [pid 5875] unlink("./3/cgroup" [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5908] <... symlink resumed>) = 0 [pid 5907] <... bpf resumed>) = 4 [pid 5875] <... unlink resumed>) = 0 [pid 5908] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5877] <... restart_syscall resumed>) = 0 [pid 5875] getdents64(3, ./strace-static-x86_64: Process 5909 attached [pid 5908] <... openat resumed>) = 3 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5909] set_robust_list(0x5555947fb660, 24 [pid 5908] write(3, "1000", 4 [pid 5907] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5875] close(3 [pid 5909] <... set_robust_list resumed>) = 0 [pid 5908] <... write resumed>) = 4 [pid 5877] umount2("./4", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... close resumed>) = 0 [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 6 [pid 5909] chdir("./4" [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5909] <... chdir resumed>) = 0 [pid 5877] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5875] rmdir("./3" [pid 5909] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5877] <... openat resumed>) = 3 [pid 5875] <... rmdir resumed>) = 0 [pid 5907] <... bpf resumed>) = 5 [pid 5909] <... prctl resumed>) = 0 [pid 5877] newfstatat(3, "", [pid 5909] setpgid(0, 0 [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5875] mkdir("./4", 0777 [pid 5909] <... setpgid resumed>) = 0 [pid 5908] close(3 [pid 5907] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5877] getdents64(3, [pid 5875] <... mkdir resumed>) = 0 [pid 5909] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5908] <... close resumed>) = 0 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5908] read(200, [pid 5909] <... symlink resumed>) = 0 [pid 5908] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5877] umount2("./4/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5909] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5908] symlink("/dev/binderfs", "./binderfs" [pid 5907] <... bpf resumed>) = 6 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5909] <... symlink resumed>) = 0 [pid 5908] <... symlink resumed>) = 0 ./strace-static-x86_64: Process 5910 attached [pid 5909] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5908] write(1, "executing program\n", 18executing program [pid 5907] perf_event_open( [pid 5877] newfstatat(AT_FDCWD, "./4/binderfs", [pid 5910] set_robust_list(0x5555947fb660, 24 [pid 5909] <... symlink resumed>) = 0 [pid 5908] <... write resumed>) = 18 [pid 5907] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 6 [pid 5910] <... set_robust_list resumed>) = 0 [pid 5909] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5908] perf_event_open( [pid 5910] chdir("./4" [pid 5909] <... openat resumed>) = 3 [pid 5908] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5907] close(3 [pid 5877] unlink("./4/binderfs" [pid 5910] <... chdir resumed>) = 0 [pid 5909] write(3, "1000", 4 [pid 5908] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5877] <... unlink resumed>) = 0 [pid 5910] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5909] <... write resumed>) = 4 [pid 5908] <... bpf resumed>) = 4 [pid 5907] <... close resumed>) = 0 [pid 5877] umount2("./4/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5910] <... prctl resumed>) = 0 [pid 5909] close(3 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5910] setpgid(0, 0 [pid 5909] <... close resumed>) = 0 [pid 5877] newfstatat(AT_FDCWD, "./4/cgroup.net", [pid 5910] <... setpgid resumed>) = 0 [pid 5909] read(200, executing program [pid 5908] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5907] close(4 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5909] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5909] symlink("/dev/binderfs", "./binderfs" [pid 5877] unlink("./4/cgroup.net" [pid 5909] <... symlink resumed>) = 0 [pid 5907] <... close resumed>) = 0 [pid 5877] <... unlink resumed>) = 0 [pid 5909] write(1, "executing program\n", 18) = 18 [pid 5877] umount2("./4/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5909] perf_event_open({type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] newfstatat(AT_FDCWD, "./4/cgroup.cpu", [pid 5910] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5909] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5908] <... bpf resumed>) = 5 [pid 5907] close(5 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5910] <... symlink resumed>) = 0 [pid 5908] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5907] <... close resumed>) = 0 [pid 5909] <... bpf resumed>) = 4 [pid 5908] <... bpf resumed>) = 6 [pid 5907] close(6 [pid 5877] unlink("./4/cgroup.cpu" [pid 5910] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu") = 0 [pid 5909] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5877] <... unlink resumed>) = 0 [pid 5910] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5908] perf_event_open( [pid 5907] <... close resumed>) = 0 [pid 5910] <... symlink resumed>) = 0 [pid 5908] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5907] close(7 [pid 5877] umount2("./4/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5910] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5910] <... openat resumed>) = 3 [pid 5908] close(3 [pid 5907] <... close resumed>) = 0 [pid 5877] newfstatat(AT_FDCWD, "./4/cgroup", [pid 5910] write(3, "1000", 4 [pid 5909] <... bpf resumed>) = 5 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5910] <... write resumed>) = 4 [pid 5910] close(3 [pid 5909] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5908] <... close resumed>) = 0 [pid 5877] unlink("./4/cgroup" [pid 5910] <... close resumed>) = 0 [pid 5909] <... bpf resumed>) = 6 [pid 5907] close(8 [pid 5908] close(4 [pid 5907] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 5910] read(200, [pid 5909] perf_event_open( [pid 5907] close(9 [pid 5910] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5877] getdents64(3, [pid 5910] symlink("/dev/binderfs", "./binderfs" [pid 5909] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5908] <... close resumed>) = 0 [pid 5907] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5909] close(3 [pid 5907] close(10 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5910] <... symlink resumed>) = 0 [pid 5908] close(5 [pid 5907] <... close resumed>) = -1 EBADF (Bad file descriptor) executing program [pid 5910] write(1, "executing program\n", 18 [pid 5908] <... close resumed>) = 0 [pid 5877] close(3 [pid 5910] <... write resumed>) = 18 [pid 5908] close(6 [pid 5907] close(11 [pid 5910] perf_event_open( [pid 5877] <... close resumed>) = 0 [pid 5877] rmdir("./4" [pid 5907] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... rmdir resumed>) = 0 [pid 5877] mkdir("./5", 0777) = 0 [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5907] close(12) = -1 EBADF (Bad file descriptor) [pid 5907] close(13./strace-static-x86_64: Process 5911 attached [pid 5910] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5909] <... close resumed>) = 0 [pid 5908] <... close resumed>) = 0 [pid 5907] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5911] set_robust_list(0x5555947fb660, 24 [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 7 [pid 5909] close(4 [pid 5910] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80) = 4 [pid 5909] <... close resumed>) = 0 [pid 5911] <... set_robust_list resumed>) = 0 [pid 5908] close(7 [pid 5907] close(14 [pid 5910] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5911] chdir("./5" [pid 5909] close(5 [pid 5908] <... close resumed>) = 0 [pid 5907] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5911] <... chdir resumed>) = 0 [pid 5908] close(8 [pid 5907] close(15 [pid 5911] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5908] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5907] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5911] <... prctl resumed>) = 0 [pid 5908] close(9 [pid 5907] close(16 [pid 5911] setpgid(0, 0 [pid 5908] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5907] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5911] <... setpgid resumed>) = 0 [pid 5908] close(10 [pid 5907] close(17 [pid 5911] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5908] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5907] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5911] <... symlink resumed>) = 0 [pid 5907] close(18 [pid 5910] <... bpf resumed>) = 5 [pid 5908] close(11 [pid 5907] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5911] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5908] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5907] close(19 [pid 5908] close(12 [pid 5907] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5911] <... symlink resumed>) = 0 [pid 5908] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5907] close(20 [pid 5909] <... close resumed>) = 0 [pid 5908] close(13 [pid 5911] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5908] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5907] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5911] <... symlink resumed>) = 0 [pid 5909] close(6 [pid 5908] close(14 [pid 5907] close(21 [pid 5911] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5908] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5907] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5911] <... openat resumed>) = 3 [pid 5908] close(15) = -1 EBADF (Bad file descriptor) [pid 5907] close(22 [pid 5908] close(16 [pid 5907] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5911] write(3, "1000", 4 [pid 5908] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5907] close(23 [pid 5911] <... write resumed>) = 4 [pid 5908] close(17 [pid 5907] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5911] close(3 [pid 5908] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5907] close(24 [pid 5911] <... close resumed>) = 0 [pid 5908] close(18 [pid 5907] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5911] read(200, [pid 5908] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5907] close(25 [pid 5911] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5908] close(19 [pid 5907] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5911] symlink("/dev/binderfs", "./binderfs" [pid 5909] <... close resumed>) = 0 [pid 5911] <... symlink resumed>) = 0 [pid 5910] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5908] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5907] close(26 [pid 5911] write(1, "executing program\n", 18executing program [pid 5909] close(7 [pid 5908] close(20 [pid 5907] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5911] <... write resumed>) = 18 [pid 5909] <... close resumed>) = 0 [pid 5908] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5907] close(27 [pid 5911] perf_event_open( [pid 5909] close(8 [pid 5908] close(21 [pid 5907] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5910] <... bpf resumed>) = 6 [pid 5909] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5911] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5910] perf_event_open( [pid 5909] close(9 [pid 5908] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5907] close(28 [pid 5911] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5908] close(22 [pid 5907] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5911] <... bpf resumed>) = 4 [pid 5910] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5909] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5908] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5907] close(29 [pid 5911] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5910] close(3 [pid 5909] close(10 [pid 5908] close(23 [pid 5907] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5909] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5908] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5911] <... bpf resumed>) = 5 [pid 5910] <... close resumed>) = 0 [pid 5909] close(11 [pid 5908] close(24 [pid 5907] exit_group(0 [pid 5911] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5910] close(4 [pid 5909] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5908] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5907] <... exit_group resumed>) = ? [pid 5911] <... bpf resumed>) = 6 [pid 5909] close(12 [pid 5908] close(25) = -1 EBADF (Bad file descriptor) [pid 5911] perf_event_open( [pid 5910] <... close resumed>) = 0 [pid 5909] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5908] close(26) = -1 EBADF (Bad file descriptor) [pid 5911] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5910] close(5 [pid 5909] close(13 [pid 5908] close(27 [pid 5910] <... close resumed>) = 0 [pid 5907] +++ exited with 0 +++ [pid 5911] close(3 [pid 5910] close(6 [pid 5909] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5908] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5908] close(28 [pid 5909] close(14 [pid 5908] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5909] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5908] close(29 [pid 5909] close(15 [pid 5908] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5909] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./3", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5908] exit_group(0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5908] <... exit_group resumed>) = ? [pid 5874] <... openat resumed>) = 3 [pid 5909] close(16) = -1 EBADF (Bad file descriptor) [pid 5908] +++ exited with 0 +++ [pid 5874] newfstatat(3, "", [pid 5909] close(17) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5909] close(18 [pid 5874] getdents64(3, 0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5909] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5909] close(19 [pid 5874] umount2("./3/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5909] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5909] close(20 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] newfstatat(AT_FDCWD, "./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5910] <... close resumed>) = 0 [pid 5874] unlink("./3/binderfs" [pid 5909] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... unlink resumed>) = 0 [pid 5874] umount2("./3/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5874] newfstatat(AT_FDCWD, "./3/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5909] close(21 [pid 5874] unlink("./3/cgroup.net" [pid 5910] close(7 [pid 5909] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./4", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... unlink resumed>) = 0 [pid 5909] close(22 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] umount2("./3/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5909] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5910] <... close resumed>) = 0 [pid 5909] close(23) = -1 EBADF (Bad file descriptor) [pid 5910] close(8 [pid 5876] <... openat resumed>) = 3 [pid 5874] newfstatat(AT_FDCWD, "./3/cgroup.cpu", [pid 5910] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5909] close(24 [pid 5876] newfstatat(3, "", [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5910] close(9 [pid 5909] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5874] unlink("./3/cgroup.cpu" [pid 5910] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5909] close(25 [pid 5876] getdents64(3, 0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5874] <... unlink resumed>) = 0 [pid 5876] umount2("./4/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5910] close(10 [pid 5909] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5910] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5909] close(26 [pid 5910] close(11 [pid 5909] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5910] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5909] close(27 [pid 5910] close(12 [pid 5909] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] umount2("./3/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5910] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5909] close(28 [pid 5876] newfstatat(AT_FDCWD, "./4/binderfs", [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5910] close(13 [pid 5909] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] newfstatat(AT_FDCWD, "./3/cgroup", [pid 5910] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5909] close(29 [pid 5876] unlink("./4/binderfs" [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5910] close(14 [pid 5909] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 5910] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./4/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] unlink("./3/cgroup" [pid 5910] close(15 [pid 5909] exit_group(0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] <... unlink resumed>) = 0 [pid 5910] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5909] <... exit_group resumed>) = ? [pid 5876] newfstatat(AT_FDCWD, "./4/cgroup.net", [pid 5910] close(16 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] getdents64(3, [pid 5876] unlink("./4/cgroup.net" [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5876] <... unlink resumed>) = 0 [pid 5874] close(3) = 0 [pid 5910] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5909] +++ exited with 0 +++ [pid 5876] umount2("./4/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] rmdir("./3" [pid 5910] close(17 [pid 5874] <... rmdir resumed>) = 0 [pid 5910] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5910] close(18 [pid 5876] newfstatat(AT_FDCWD, "./4/cgroup.cpu", [pid 5874] mkdir("./4", 0777 [pid 5910] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] <... mkdir resumed>) = 0 [pid 5910] close(19 [pid 5876] unlink("./4/cgroup.cpu" [pid 5910] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5910] close(20) = -1 EBADF (Bad file descriptor) [pid 5910] close(21) = -1 EBADF (Bad file descriptor) [pid 5910] close(22) = -1 EBADF (Bad file descriptor) [pid 5910] close(23 [pid 5876] umount2("./4/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5912 attached [pid 5910] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] umount2("./4", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5910] close(24 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5910] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(AT_FDCWD, "./4/cgroup", [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 6 [pid 5910] close(25 [pid 5873] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5910] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5910] close(26) = -1 EBADF (Bad file descriptor) [pid 5910] close(27) = -1 EBADF (Bad file descriptor) [pid 5910] close(28) = -1 EBADF (Bad file descriptor) [pid 5910] close(29) = -1 EBADF (Bad file descriptor) [pid 5910] exit_group(0 [pid 5873] <... openat resumed>) = 3 [pid 5910] <... exit_group resumed>) = ? [pid 5912] set_robust_list(0x5555947fb660, 24 [pid 5911] <... close resumed>) = 0 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] newfstatat(3, "", [pid 5912] <... set_robust_list resumed>) = 0 [pid 5911] close(4 [pid 5876] unlink("./4/cgroup" [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5912] chdir("./4" [pid 5911] <... close resumed>) = 0 [pid 5910] +++ exited with 0 +++ [pid 5876] <... unlink resumed>) = 0 [pid 5873] getdents64(3, [pid 5912] <... chdir resumed>) = 0 [pid 5911] close(5 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5873] umount2("./4/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] umount2("./4", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5912] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5876] getdents64(3, [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] newfstatat(AT_FDCWD, "./4/binderfs", [pid 5912] <... prctl resumed>) = 0 [pid 5911] <... close resumed>) = 0 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5875] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5912] setpgid(0, 0 [pid 5911] close(6 [pid 5876] close(3 [pid 5875] <... openat resumed>) = 3 [pid 5873] unlink("./4/binderfs" [pid 5912] <... setpgid resumed>) = 0 [pid 5875] newfstatat(3, "", [pid 5873] <... unlink resumed>) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5873] umount2("./4/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] getdents64(3, [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5873] newfstatat(AT_FDCWD, "./4/cgroup.net", [pid 5875] umount2("./4/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] <... close resumed>) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] unlink("./4/cgroup.net" [pid 5875] newfstatat(AT_FDCWD, "./4/binderfs", [pid 5873] <... unlink resumed>) = 0 [pid 5912] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] unlink("./4/binderfs" [pid 5873] umount2("./4/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... unlink resumed>) = 0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] newfstatat(AT_FDCWD, "./4/cgroup.cpu", [pid 5911] <... close resumed>) = 0 [pid 5876] rmdir("./4" [pid 5875] umount2("./4/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] <... rmdir resumed>) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] unlink("./4/cgroup.cpu" [pid 5911] close(7 [pid 5876] mkdir("./5", 0777 [pid 5875] newfstatat(AT_FDCWD, "./4/cgroup.net", [pid 5912] <... symlink resumed>) = 0 [pid 5876] <... mkdir resumed>) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... unlink resumed>) = 0 [pid 5875] unlink("./4/cgroup.net" [pid 5873] umount2("./4/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... unlink resumed>) = 0 [pid 5875] umount2("./4/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5912] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] newfstatat(AT_FDCWD, "./4/cgroup", [pid 5911] <... close resumed>) = 0 [pid 5875] newfstatat(AT_FDCWD, "./4/cgroup.cpu", [pid 5912] <... symlink resumed>) = 0 [pid 5911] close(8 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5911] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] unlink("./4/cgroup.cpu" [pid 5873] unlink("./4/cgroup" [pid 5912] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5911] close(9 [pid 5875] <... unlink resumed>) = 0 [pid 5911] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./4/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... unlink resumed>) = 0 [pid 5911] close(10 [pid 5912] <... symlink resumed>) = 0 ./strace-static-x86_64: Process 5913 attached [pid 5911] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] getdents64(3, [pid 5912] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5911] close(11 [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 7 [pid 5875] newfstatat(AT_FDCWD, "./4/cgroup", [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5911] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5912] <... openat resumed>) = 3 [pid 5875] unlink("./4/cgroup" [pid 5873] close(3 [pid 5913] set_robust_list(0x5555947fb660, 24 [pid 5912] write(3, "1000", 4 [pid 5911] close(12 [pid 5875] <... unlink resumed>) = 0 [pid 5873] <... close resumed>) = 0 [pid 5913] <... set_robust_list resumed>) = 0 [pid 5912] <... write resumed>) = 4 [pid 5911] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] getdents64(3, [pid 5873] rmdir("./4" [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5913] chdir("./5" [pid 5873] <... rmdir resumed>) = 0 [pid 5912] close(3 [pid 5911] close(13) = -1 EBADF (Bad file descriptor) [pid 5911] close(14 [pid 5913] <... chdir resumed>) = 0 [pid 5875] close(3 [pid 5873] mkdir("./5", 0777 [pid 5913] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5912] <... close resumed>) = 0 [pid 5911] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... close resumed>) = 0 [pid 5873] <... mkdir resumed>) = 0 [pid 5913] <... prctl resumed>) = 0 [pid 5912] read(200, [pid 5911] close(15 executing program [pid 5875] rmdir("./4" [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5913] setpgid(0, 0 [pid 5912] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5911] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5913] <... setpgid resumed>) = 0 [pid 5912] symlink("/dev/binderfs", "./binderfs" [pid 5911] close(16 [pid 5875] <... rmdir resumed>) = 0 [pid 5913] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5911] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5912] <... symlink resumed>) = 0 [pid 5911] close(17) = -1 EBADF (Bad file descriptor) [pid 5911] close(18 [pid 5913] <... symlink resumed>) = 0 [pid 5912] write(1, "executing program\n", 18 [pid 5911] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5911] close(19) = -1 EBADF (Bad file descriptor) [pid 5912] <... write resumed>) = 18 [pid 5911] close(20 [pid 5913] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5912] perf_event_open( [pid 5911] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5911] close(21 [pid 5875] mkdir("./5", 0777 [pid 5913] <... symlink resumed>) = 0 [pid 5912] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5911] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5913] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5911] close(22 [pid 5913] <... symlink resumed>) = 0 [pid 5911] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... mkdir resumed>) = 0 [pid 5911] close(23 [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5913] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5911] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5913] <... openat resumed>) = 3 [pid 5911] close(24) = -1 EBADF (Bad file descriptor) [pid 5911] close(25) = -1 EBADF (Bad file descriptor) [pid 5913] write(3, "1000", 4 [pid 5911] close(26 [pid 5913] <... write resumed>) = 4 [pid 5911] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5913] close(3 [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 7 [pid 5912] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80./strace-static-x86_64: Process 5914 attached ./strace-static-x86_64: Process 5915 attached [pid 5914] set_robust_list(0x5555947fb660, 24 [pid 5913] <... close resumed>) = 0 [pid 5911] close(27 [pid 5915] set_robust_list(0x5555947fb660, 24 [pid 5914] <... set_robust_list resumed>) = 0 [pid 5913] read(200, [pid 5912] <... bpf resumed>) = 4 [pid 5911] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 7 [pid 5915] <... set_robust_list resumed>) = 0 [pid 5913] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5911] close(28 [pid 5915] chdir("./5" [pid 5913] symlink("/dev/binderfs", "./binderfs" [pid 5911] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5915] <... chdir resumed>) = 0 [pid 5914] chdir("./5" [pid 5913] <... symlink resumed>) = 0 [pid 5912] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5911] close(29 [pid 5915] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5914] <... chdir resumed>) = 0 [pid 5913] write(1, "executing program\n", 18 [pid 5912] <... bpf resumed>) = 5 executing program [pid 5915] <... prctl resumed>) = 0 [pid 5911] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5914] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5913] <... write resumed>) = 18 [pid 5914] <... prctl resumed>) = 0 [pid 5914] setpgid(0, 0 [pid 5913] perf_event_open( [pid 5911] exit_group(0 [pid 5914] <... setpgid resumed>) = 0 [pid 5915] setpgid(0, 0 [pid 5913] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5912] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5911] <... exit_group resumed>) = ? [pid 5915] <... setpgid resumed>) = 0 [pid 5914] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5913] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5912] <... bpf resumed>) = 6 [pid 5915] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5914] <... symlink resumed>) = 0 [pid 5913] <... bpf resumed>) = 4 [pid 5915] <... symlink resumed>) = 0 [pid 5914] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5913] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5912] perf_event_open( [pid 5911] +++ exited with 0 +++ [pid 5915] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5914] <... symlink resumed>) = 0 [pid 5912] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5914] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5912] close(3 [pid 5915] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5877] umount2("./5", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5915] <... symlink resumed>) = 0 [pid 5912] <... close resumed>) = 0 [pid 5914] <... symlink resumed>) = 0 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5915] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5914] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5912] close(4 [pid 5877] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5913] <... bpf resumed>) = 5 [pid 5915] <... openat resumed>) = 3 [pid 5914] <... openat resumed>) = 3 [pid 5877] <... openat resumed>) = 3 [pid 5915] write(3, "1000", 4) = 4 [pid 5914] write(3, "1000", 4 [pid 5912] <... close resumed>) = 0 [pid 5913] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5877] newfstatat(3, "", [pid 5915] close(3 [pid 5914] <... write resumed>) = 4 [pid 5912] close(5 [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5914] close(3 [pid 5915] <... close resumed>) = 0 [pid 5914] <... close resumed>) = 0 [pid 5912] <... close resumed>) = 0 [pid 5877] getdents64(3, [pid 5915] read(200, [pid 5914] read(200, [pid 5913] <... bpf resumed>) = 6 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5915] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5914] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5913] perf_event_open( [pid 5912] close(6 [pid 5915] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5914] symlink("/dev/binderfs", "./binderfs" [pid 5913] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5877] umount2("./5/binderfs", MNT_FORCE|UMOUNT_NOFOLLOWexecuting program [pid 5915] write(1, "executing program\n", 18 [pid 5913] close(3 [pid 5915] <... write resumed>) = 18 [pid 5912] <... close resumed>) = 0 [pid 5915] perf_event_open( [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5914] <... symlink resumed>) = 0 [pid 5877] newfstatat(AT_FDCWD, "./5/binderfs", [pid 5914] write(1, "executing program\n", 18executing program ) = 18 [pid 5912] close(7 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5914] perf_event_open( [pid 5912] <... close resumed>) = 0 [pid 5877] unlink("./5/binderfs" [pid 5912] close(8) = -1 EBADF (Bad file descriptor) [pid 5912] close(9 [pid 5877] <... unlink resumed>) = 0 [pid 5912] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5912] close(10 [pid 5877] umount2("./5/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5912] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5912] close(11 [pid 5877] newfstatat(AT_FDCWD, "./5/cgroup.net", [pid 5912] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5912] close(12 [pid 5877] unlink("./5/cgroup.net" [pid 5912] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 5912] close(13) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./5/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5912] close(14 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5912] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./5/cgroup.cpu", [pid 5912] close(15 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5912] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./5/cgroup.cpu" [pid 5912] close(16) = -1 EBADF (Bad file descriptor) [pid 5912] close(17) = -1 EBADF (Bad file descriptor) [pid 5913] <... close resumed>) = 0 [pid 5912] close(18 [pid 5913] close(4 [pid 5912] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 5915] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5913] <... close resumed>) = 0 [pid 5912] close(19 [pid 5877] umount2("./5/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5914] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5913] close(5 [pid 5912] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5915] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5914] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5913] <... close resumed>) = 0 [pid 5912] close(20 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5915] <... bpf resumed>) = 4 [pid 5914] <... bpf resumed>) = 4 [pid 5913] close(6 [pid 5912] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./5/cgroup", [pid 5915] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5912] close(21 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5914] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5913] <... close resumed>) = 0 [pid 5912] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./5/cgroup" [pid 5915] <... bpf resumed>) = 5 [pid 5912] close(22 [pid 5877] <... unlink resumed>) = 0 [pid 5913] close(7 [pid 5915] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5912] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] getdents64(3, [pid 5913] <... close resumed>) = 0 [pid 5912] close(23 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5915] <... bpf resumed>) = 6 [pid 5913] close(8 [pid 5912] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5915] perf_event_open( [pid 5913] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5915] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5913] close(9 [pid 5912] close(24 [pid 5877] close(3 [pid 5912] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5912] close(25 [pid 5877] <... close resumed>) = 0 [pid 5912] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5914] <... bpf resumed>) = 5 [pid 5912] close(26 [pid 5877] rmdir("./5" [pid 5915] close(3 [pid 5914] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5913] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5912] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... rmdir resumed>) = 0 [pid 5913] close(10 [pid 5912] close(27 [pid 5877] mkdir("./6", 0777 [pid 5915] <... close resumed>) = 0 [pid 5914] <... bpf resumed>) = 6 [pid 5913] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5912] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... mkdir resumed>) = 0 [pid 5915] close(4 [pid 5914] perf_event_open( [pid 5912] close(28) = -1 EBADF (Bad file descriptor) [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5914] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5913] close(11 [pid 5912] close(29) = -1 EBADF (Bad file descriptor) [pid 5915] <... close resumed>) = 0 [pid 5913] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5915] close(5 [pid 5914] close(3 [pid 5913] close(12 [pid 5912] exit_group(0 [pid 5913] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5912] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5916 attached [pid 5913] close(13 [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 8 [pid 5915] <... close resumed>) = 0 [pid 5916] set_robust_list(0x5555947fb660, 24 [pid 5913] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5912] +++ exited with 0 +++ [pid 5916] <... set_robust_list resumed>) = 0 [pid 5915] close(6 [pid 5913] close(14 [pid 5916] chdir("./6" [pid 5914] <... close resumed>) = 0 [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5916] <... chdir resumed>) = 0 [pid 5916] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5914] close(4 [pid 5916] <... prctl resumed>) = 0 [pid 5874] umount2("./4", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5916] setpgid(0, 0) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5916] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5915] <... close resumed>) = 0 [pid 5914] <... close resumed>) = 0 [pid 5913] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5916] <... symlink resumed>) = 0 [pid 5915] close(7 [pid 5914] close(5 [pid 5913] close(15 [pid 5874] <... openat resumed>) = 3 [pid 5916] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5915] <... close resumed>) = 0 [pid 5874] newfstatat(3, "", [pid 5914] <... close resumed>) = 0 [pid 5916] <... symlink resumed>) = 0 [pid 5915] close(8 [pid 5913] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5914] close(6 [pid 5913] close(16 [pid 5916] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5915] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5913] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5915] close(9) = -1 EBADF (Bad file descriptor) [pid 5874] getdents64(3, [pid 5915] close(10 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5916] <... symlink resumed>) = 0 [pid 5915] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5916] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5915] close(11 [pid 5874] umount2("./4/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5916] <... openat resumed>) = 3 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5915] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] newfstatat(AT_FDCWD, "./4/binderfs", [pid 5916] write(3, "1000", 4 [pid 5915] close(12 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5916] <... write resumed>) = 4 [pid 5915] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] unlink("./4/binderfs" [pid 5916] close(3 [pid 5915] close(13 [pid 5874] <... unlink resumed>) = 0 [pid 5916] <... close resumed>) = 0 [pid 5915] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5916] read(200, [pid 5915] close(14 [pid 5874] umount2("./4/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5916] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5915] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5916] symlink("/dev/binderfs", "./binderfs" [pid 5915] close(15 [pid 5914] <... close resumed>) = 0 [pid 5913] close(17 [pid 5916] <... symlink resumed>) = 0 [pid 5915] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5914] close(7 [pid 5913] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] newfstatat(AT_FDCWD, "./4/cgroup.net", executing program [pid 5916] write(1, "executing program\n", 18 [pid 5915] close(16 [pid 5913] close(18 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5913] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5916] <... write resumed>) = 18 [pid 5915] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5913] close(19 [pid 5874] unlink("./4/cgroup.net" [pid 5916] perf_event_open( [pid 5915] close(17 [pid 5914] <... close resumed>) = 0 [pid 5913] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... unlink resumed>) = 0 [pid 5915] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5916] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5914] close(8 [pid 5913] close(20 [pid 5916] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5915] close(18 [pid 5914] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5913] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./4/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5916] <... bpf resumed>) = 4 [pid 5915] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5914] close(9 [pid 5913] close(21 [pid 5916] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5914] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5913] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5915] close(19 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5915] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5913] close(22 [pid 5874] newfstatat(AT_FDCWD, "./4/cgroup.cpu", [pid 5915] close(20) = -1 EBADF (Bad file descriptor) [pid 5914] close(10 [pid 5913] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5916] <... bpf resumed>) = 5 [pid 5915] close(21 [pid 5914] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5913] close(23 [pid 5874] unlink("./4/cgroup.cpu" [pid 5916] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5915] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5914] close(11 [pid 5913] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... unlink resumed>) = 0 [pid 5916] <... bpf resumed>) = 6 [pid 5915] close(22 [pid 5914] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5913] close(24 [pid 5874] umount2("./4/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5915] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5916] perf_event_open( [pid 5915] close(23 [pid 5914] close(12 [pid 5913] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5916] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5915] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5914] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5913] close(25 [pid 5874] newfstatat(AT_FDCWD, "./4/cgroup", [pid 5916] close(3 [pid 5915] close(24 [pid 5914] close(13 [pid 5913] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5915] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5914] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5913] close(26 [pid 5874] unlink("./4/cgroup" [pid 5915] close(25 [pid 5914] close(14 [pid 5913] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5915] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... unlink resumed>) = 0 [pid 5915] close(26) = -1 EBADF (Bad file descriptor) [pid 5914] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5913] close(27 [pid 5874] getdents64(3, [pid 5915] close(27 [pid 5914] close(15 [pid 5913] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5915] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5914] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5913] close(28 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5915] close(28 [pid 5874] close(3 [pid 5915] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... close resumed>) = 0 [pid 5915] close(29 [pid 5914] close(16 [pid 5913] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] rmdir("./4" [pid 5915] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5914] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5913] close(29) = -1 EBADF (Bad file descriptor) [pid 5914] close(17 [pid 5915] exit_group(0 [pid 5914] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5913] exit_group(0 [pid 5874] <... rmdir resumed>) = 0 [pid 5915] <... exit_group resumed>) = ? [pid 5914] close(18 [pid 5913] <... exit_group resumed>) = ? [pid 5874] mkdir("./5", 0777 [pid 5914] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... mkdir resumed>) = 0 [pid 5915] +++ exited with 0 +++ [pid 5914] close(19 [pid 5913] +++ exited with 0 +++ [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5916] <... close resumed>) = 0 [pid 5914] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5914] close(20) = -1 EBADF (Bad file descriptor) [pid 5914] close(21) = -1 EBADF (Bad file descriptor) [pid 5914] close(22) = -1 EBADF (Bad file descriptor) [pid 5914] close(23) = -1 EBADF (Bad file descriptor) [pid 5914] close(24) = -1 EBADF (Bad file descriptor) [pid 5914] close(25) = -1 EBADF (Bad file descriptor) [pid 5914] close(26./strace-static-x86_64: Process 5917 attached [pid 5916] close(4 [pid 5914] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5917] set_robust_list(0x5555947fb660, 24 [pid 5914] close(27 [pid 5917] <... set_robust_list resumed>) = 0 [pid 5914] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5917] chdir("./5" [pid 5916] <... close resumed>) = 0 [pid 5914] close(28 [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 7 [pid 5917] <... chdir resumed>) = 0 [pid 5916] close(5 [pid 5914] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5917] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5914] close(29 [pid 5917] <... prctl resumed>) = 0 [pid 5917] setpgid(0, 0 [pid 5916] <... close resumed>) = 0 [pid 5914] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5916] close(6 [pid 5914] exit_group(0 [pid 5876] umount2("./5", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5917] <... setpgid resumed>) = 0 [pid 5914] <... exit_group resumed>) = ? [pid 5917] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5916] <... close resumed>) = 0 [pid 5917] <... symlink resumed>) = 0 [pid 5916] close(7 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5916] <... close resumed>) = 0 [pid 5876] <... openat resumed>) = 3 [pid 5917] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5876] newfstatat(3, "", [pid 5916] close(8 [pid 5914] +++ exited with 0 +++ [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5917] <... symlink resumed>) = 0 [pid 5916] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] getdents64(3, 0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5917] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5916] close(9 [pid 5876] umount2("./5/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] umount2("./5", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5916] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(AT_FDCWD, "./5/binderfs", [pid 5916] close(10 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5916] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] unlink("./5/binderfs") = 0 [pid 5873] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5876] umount2("./5/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5917] <... symlink resumed>) = 0 [pid 5916] close(11 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] umount2("./5", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... openat resumed>) = 3 [pid 5917] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5916] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(AT_FDCWD, "./5/cgroup.net", [pid 5917] <... openat resumed>) = 3 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] newfstatat(3, "", [pid 5916] close(12 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5917] write(3, "1000", 4 [pid 5916] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] unlink("./5/cgroup.net" [pid 5917] <... write resumed>) = 4 [pid 5916] close(13 [pid 5876] <... unlink resumed>) = 0 [pid 5875] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5873] getdents64(3, [pid 5917] close(3 [pid 5916] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./5/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... openat resumed>) = 3 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5917] <... close resumed>) = 0 [pid 5916] close(14 [pid 5875] newfstatat(3, "", [pid 5873] umount2("./5/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5917] read(200, [pid 5916] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5917] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5916] close(15 [pid 5876] newfstatat(AT_FDCWD, "./5/cgroup.cpu", [pid 5917] symlink("/dev/binderfs", "./binderfs" [pid 5916] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] getdents64(3, executing program [pid 5873] newfstatat(AT_FDCWD, "./5/binderfs", [pid 5917] <... symlink resumed>) = 0 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5917] write(1, "executing program\n", 18 [pid 5916] close(16 [pid 5876] unlink("./5/cgroup.cpu" [pid 5917] <... write resumed>) = 18 [pid 5916] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 5875] umount2("./5/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5917] perf_event_open( [pid 5916] close(17 [pid 5876] umount2("./5/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5916] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] unlink("./5/binderfs" [pid 5916] close(18 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... unlink resumed>) = 0 [pid 5917] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5916] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(AT_FDCWD, "./5/cgroup", [pid 5875] newfstatat(AT_FDCWD, "./5/binderfs", [pid 5873] umount2("./5/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5917] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5916] close(19 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5917] <... bpf resumed>) = 4 [pid 5916] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] unlink("./5/cgroup" [pid 5917] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5916] close(20 [pid 5875] unlink("./5/binderfs" [pid 5873] newfstatat(AT_FDCWD, "./5/cgroup.net", [pid 5916] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 5875] <... unlink resumed>) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5917] <... bpf resumed>) = 5 [pid 5916] close(21 [pid 5876] getdents64(3, [pid 5875] umount2("./5/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] unlink("./5/cgroup.net" [pid 5917] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5916] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5917] <... bpf resumed>) = 6 [pid 5916] close(22 [pid 5875] newfstatat(AT_FDCWD, "./5/cgroup.net", [pid 5873] <... unlink resumed>) = 0 [pid 5917] perf_event_open( [pid 5916] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] close(3 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] umount2("./5/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5917] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5916] close(23 [pid 5876] <... close resumed>) = 0 [pid 5875] unlink("./5/cgroup.net" [pid 5917] close(3 [pid 5916] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5916] close(24 [pid 5876] rmdir("./5" [pid 5875] <... unlink resumed>) = 0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] umount2("./5/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] newfstatat(AT_FDCWD, "./5/cgroup.cpu", [pid 5876] <... rmdir resumed>) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5916] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] mkdir("./6", 0777 [pid 5875] newfstatat(AT_FDCWD, "./5/cgroup.cpu", [pid 5916] close(25) = -1 EBADF (Bad file descriptor) [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] unlink("./5/cgroup.cpu" [pid 5916] close(26 [pid 5875] unlink("./5/cgroup.cpu" [pid 5873] <... unlink resumed>) = 0 [pid 5875] <... unlink resumed>) = 0 [pid 5873] umount2("./5/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] umount2("./5/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] newfstatat(AT_FDCWD, "./5/cgroup", [pid 5875] newfstatat(AT_FDCWD, "./5/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] unlink("./5/cgroup" [pid 5875] unlink("./5/cgroup" [pid 5873] <... unlink resumed>) = 0 [pid 5875] <... unlink resumed>) = 0 [pid 5873] getdents64(3, [pid 5875] getdents64(3, [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5873] close(3 [pid 5875] close(3 [pid 5873] <... close resumed>) = 0 [pid 5875] <... close resumed>) = 0 [pid 5873] rmdir("./5" [pid 5875] rmdir("./5" [pid 5873] <... rmdir resumed>) = 0 [pid 5875] <... rmdir resumed>) = 0 [pid 5873] mkdir("./6", 0777 [pid 5875] mkdir("./6", 0777) = 0 [pid 5873] <... mkdir resumed>) = 0 [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5919 attached ./strace-static-x86_64: Process 5918 attached [pid 5916] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... mkdir resumed>) = 0 [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 8 [pid 5919] set_robust_list(0x5555947fb660, 24 [pid 5918] set_robust_list(0x5555947fb660, 24 [pid 5916] close(27 [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 8 [pid 5919] <... set_robust_list resumed>) = 0 [pid 5918] <... set_robust_list resumed>) = 0 [pid 5916] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5919] chdir("./6") = 0 [pid 5916] close(28 [pid 5919] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5916] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5919] <... prctl resumed>) = 0 [pid 5916] close(29 [pid 5919] setpgid(0, 0 [pid 5916] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5916] exit_group(0 [pid 5919] <... setpgid resumed>) = 0 [pid 5918] chdir("./6" [pid 5919] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5916] <... exit_group resumed>) = ? [pid 5919] <... symlink resumed>) = 0 ./strace-static-x86_64: Process 5920 attached [pid 5918] <... chdir resumed>) = 0 [pid 5917] <... close resumed>) = 0 [pid 5916] +++ exited with 0 +++ [pid 5919] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 8 [pid 5918] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5920] set_robust_list(0x5555947fb660, 24 [pid 5919] <... symlink resumed>) = 0 [pid 5917] close(4 [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5918] <... prctl resumed>) = 0 [pid 5920] <... set_robust_list resumed>) = 0 [pid 5919] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5918] setpgid(0, 0 [pid 5917] <... close resumed>) = 0 [pid 5877] restart_syscall(<... resuming interrupted clone ...> [pid 5920] chdir("./6" [pid 5918] <... setpgid resumed>) = 0 [pid 5917] close(5 [pid 5877] <... restart_syscall resumed>) = 0 [pid 5918] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5919] <... symlink resumed>) = 0 [pid 5920] <... chdir resumed>) = 0 [pid 5917] <... close resumed>) = 0 [pid 5920] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5919] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5917] close(6 [pid 5920] <... prctl resumed>) = 0 [pid 5918] <... symlink resumed>) = 0 [pid 5877] umount2("./6", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5920] setpgid(0, 0) = 0 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5920] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5917] <... close resumed>) = 0 [pid 5877] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5920] <... symlink resumed>) = 0 [pid 5919] <... openat resumed>) = 3 [pid 5918] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5917] close(7 [pid 5877] newfstatat(3, "", [pid 5920] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5919] write(3, "1000", 4 [pid 5918] <... symlink resumed>) = 0 [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5917] <... close resumed>) = 0 [pid 5919] <... write resumed>) = 4 [pid 5918] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5917] close(8 [pid 5877] getdents64(3, [pid 5920] <... symlink resumed>) = 0 [pid 5919] close(3 [pid 5918] <... symlink resumed>) = 0 [pid 5917] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5919] <... close resumed>) = 0 [pid 5918] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5917] close(9 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5920] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5919] read(200, [pid 5918] <... openat resumed>) = 3 [pid 5917] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./6/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5920] <... symlink resumed>) = 0 [pid 5919] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5918] write(3, "1000", 4 [pid 5917] close(10 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5920] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5919] symlink("/dev/binderfs", "./binderfs" [pid 5918] <... write resumed>) = 4 [pid 5877] newfstatat(AT_FDCWD, "./6/binderfs", [pid 5920] <... openat resumed>) = 3 [pid 5919] <... symlink resumed>) = 0 [pid 5918] close(3 [pid 5917] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5920] write(3, "1000", 4 [pid 5919] write(1, "executing program\n", 18executing program [pid 5918] <... close resumed>) = 0 [pid 5917] close(11 [pid 5919] <... write resumed>) = 18 [pid 5918] read(200, [pid 5917] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./6/binderfs" [pid 5920] <... write resumed>) = 4 [pid 5919] perf_event_open( [pid 5917] close(12 [pid 5877] <... unlink resumed>) = 0 [pid 5877] umount2("./6/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5918] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5877] newfstatat(AT_FDCWD, "./6/cgroup.net", [pid 5920] close(3 [pid 5918] symlink("/dev/binderfs", "./binderfs" [pid 5917] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5920] <... close resumed>) = 0 [pid 5877] unlink("./6/cgroup.net" [pid 5920] read(200, [pid 5918] <... symlink resumed>) = 0 [pid 5917] close(13 [pid 5877] <... unlink resumed>) = 0 [pid 5917] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./6/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5920] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5918] write(1, "executing program\n", 18executing program [pid 5917] close(14 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5920] symlink("/dev/binderfs", "./binderfs" [pid 5919] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5918] <... write resumed>) = 18 [pid 5917] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./6/cgroup.cpu", [pid 5918] perf_event_open( [pid 5917] close(15 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5919] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5917] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5920] <... symlink resumed>) = 0 [pid 5877] unlink("./6/cgroup.cpu" [pid 5918] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5877] <... unlink resumed>) = 0 [pid 5877] umount2("./6/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5920] write(1, "executing program\n", 18executing program [pid 5919] <... bpf resumed>) = 4 [pid 5918] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5917] close(16 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5920] <... write resumed>) = 18 [pid 5918] <... bpf resumed>) = 4 [pid 5917] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5920] perf_event_open( [pid 5919] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5918] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5917] close(17 [pid 5877] newfstatat(AT_FDCWD, "./6/cgroup", [pid 5918] <... bpf resumed>) = 5 [pid 5917] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5917] close(18 [pid 5920] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5917] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5917] close(19) = -1 EBADF (Bad file descriptor) [pid 5920] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5919] <... bpf resumed>) = 5 [pid 5918] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5917] close(20 [pid 5920] <... bpf resumed>) = 4 [pid 5919] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5918] <... bpf resumed>) = 6 [pid 5917] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./6/cgroup" [pid 5920] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5919] <... bpf resumed>) = 6 [pid 5918] perf_event_open( [pid 5917] close(21 [pid 5919] perf_event_open( [pid 5918] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5877] <... unlink resumed>) = 0 [pid 5919] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5918] close(3 [pid 5920] <... bpf resumed>) = 5 [pid 5919] close(3 [pid 5917] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5920] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5917] close(22 [pid 5920] <... bpf resumed>) = 6 [pid 5918] <... close resumed>) = 0 [pid 5917] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5920] perf_event_open( [pid 5917] close(23) = -1 EBADF (Bad file descriptor) [pid 5877] getdents64(3, [pid 5920] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5917] close(24 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5917] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] close(3 [pid 5919] <... close resumed>) = 0 [pid 5917] close(25 [pid 5877] <... close resumed>) = 0 [pid 5920] close(3 [pid 5919] close(4 [pid 5918] close(4 [pid 5917] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] rmdir("./6" [pid 5919] <... close resumed>) = 0 [pid 5918] <... close resumed>) = 0 [pid 5917] close(26 [pid 5919] close(5 [pid 5918] close(5 [pid 5917] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5919] <... close resumed>) = 0 [pid 5918] <... close resumed>) = 0 [pid 5917] close(27 [pid 5877] <... rmdir resumed>) = 0 [pid 5919] close(6 [pid 5917] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] mkdir("./7", 0777 [pid 5918] close(6 [pid 5917] close(28 [pid 5877] <... mkdir resumed>) = 0 [pid 5917] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5919] <... close resumed>) = 0 [pid 5917] close(29) = -1 EBADF (Bad file descriptor) [pid 5918] <... close resumed>) = 0 [pid 5917] exit_group(0) = ? ./strace-static-x86_64: Process 5921 attached [pid 5919] close(7 [pid 5918] close(7 [pid 5921] set_robust_list(0x5555947fb660, 24 [pid 5919] <... close resumed>) = 0 [pid 5918] <... close resumed>) = 0 [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 9 [pid 5921] <... set_robust_list resumed>) = 0 [pid 5919] close(8 [pid 5918] close(8 [pid 5917] +++ exited with 0 +++ [pid 5919] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5919] close(9 [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5921] chdir("./7" [pid 5920] <... close resumed>) = 0 [pid 5918] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5919] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] restart_syscall(<... resuming interrupted clone ...> [pid 5920] close(4 [pid 5921] <... chdir resumed>) = 0 [pid 5919] close(10 [pid 5918] close(9 [pid 5874] <... restart_syscall resumed>) = 0 [pid 5921] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5920] <... close resumed>) = 0 [pid 5919] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5918] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5921] <... prctl resumed>) = 0 [pid 5920] close(5 [pid 5919] close(11 [pid 5918] close(10 [pid 5921] setpgid(0, 0 [pid 5919] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5918] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5919] close(12 [pid 5918] close(11 [pid 5921] <... setpgid resumed>) = 0 [pid 5919] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5918] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./5", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5921] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5920] <... close resumed>) = 0 [pid 5919] close(13 [pid 5918] close(12 [pid 5920] close(6 [pid 5919] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5921] <... symlink resumed>) = 0 [pid 5918] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5921] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5920] <... close resumed>) = 0 [pid 5919] close(14 [pid 5918] close(13 [pid 5874] <... openat resumed>) = 3 [pid 5921] <... symlink resumed>) = 0 [pid 5920] close(7 [pid 5919] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5918] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] newfstatat(3, "", [pid 5921] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5919] close(15 [pid 5918] close(14 [pid 5921] <... symlink resumed>) = 0 [pid 5920] <... close resumed>) = 0 [pid 5919] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5921] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5919] close(16 [pid 5920] close(8 [pid 5918] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5919] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5918] close(15 [pid 5919] close(17 [pid 5920] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] getdents64(3, [pid 5920] close(9 [pid 5919] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5918] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5920] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5921] <... openat resumed>) = 3 [pid 5921] write(3, "1000", 4 [pid 5920] close(10 [pid 5919] close(18 [pid 5918] close(16 [pid 5874] umount2("./5/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5921] <... write resumed>) = 4 [pid 5920] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5919] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5918] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5921] close(3 [pid 5919] close(19 [pid 5918] close(17 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5921] <... close resumed>) = 0 [pid 5919] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5918] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5921] read(200, [pid 5919] close(20 [pid 5918] close(18 [pid 5921] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5919] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5918] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5921] symlink("/dev/binderfs", "./binderfs" [pid 5920] close(11 [pid 5919] close(21 [pid 5918] close(19 [pid 5874] newfstatat(AT_FDCWD, "./5/binderfs", [pid 5920] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5919] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5918] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5921] <... symlink resumed>) = 0 [pid 5920] close(12 [pid 5919] close(22 [pid 5918] close(20 [pid 5874] unlink("./5/binderfs" [pid 5921] write(1, "executing program\n", 18executing program [pid 5920] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5919] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5918] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5921] <... write resumed>) = 18 [pid 5920] close(13 [pid 5919] close(23 [pid 5918] close(21 [pid 5874] <... unlink resumed>) = 0 [pid 5921] perf_event_open( [pid 5920] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5919] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5918] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./5/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5921] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5920] close(14 [pid 5919] close(24 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5921] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5920] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5919] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5918] close(22 [pid 5874] newfstatat(AT_FDCWD, "./5/cgroup.net", [pid 5921] <... bpf resumed>) = 4 [pid 5920] close(15) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5920] close(16 [pid 5874] unlink("./5/cgroup.net" [pid 5920] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5920] close(17 [pid 5919] close(25 [pid 5918] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5921] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5920] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5919] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5918] close(23 [pid 5920] close(18 [pid 5919] close(26 [pid 5918] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... unlink resumed>) = 0 [pid 5920] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5919] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5918] close(24 [pid 5920] close(19 [pid 5919] close(27 [pid 5874] umount2("./5/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5918] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5920] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5919] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5921] <... bpf resumed>) = 5 [pid 5919] close(28 [pid 5918] close(25 [pid 5874] newfstatat(AT_FDCWD, "./5/cgroup.cpu", [pid 5921] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5920] close(20 [pid 5919] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5918] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5919] close(29 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5921] <... bpf resumed>) = 6 [pid 5920] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] unlink("./5/cgroup.cpu" [pid 5920] close(21 [pid 5919] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5918] close(26 [pid 5921] perf_event_open( [pid 5874] <... unlink resumed>) = 0 [pid 5920] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5919] exit_group(0 [pid 5918] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./5/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5920] close(22 [pid 5918] close(27 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5920] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5919] <... exit_group resumed>) = ? [pid 5918] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5920] close(23 [pid 5918] close(28 [pid 5874] newfstatat(AT_FDCWD, "./5/cgroup", [pid 5921] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5920] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5918] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5921] close(3 [pid 5920] close(24 [pid 5919] +++ exited with 0 +++ [pid 5918] close(29 [pid 5920] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5918] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] unlink("./5/cgroup" [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5920] close(25 [pid 5874] <... unlink resumed>) = 0 [pid 5920] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] getdents64(3, [pid 5920] close(26 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5874] close(3 [pid 5920] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... close resumed>) = 0 [pid 5918] exit_group(0 [pid 5873] umount2("./6", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5920] close(27 [pid 5874] rmdir("./5" [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5920] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5918] <... exit_group resumed>) = ? [pid 5874] <... rmdir resumed>) = 0 [pid 5873] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5920] close(28 [pid 5874] mkdir("./6", 0777 [pid 5873] <... openat resumed>) = 3 [pid 5920] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5920] close(29 [pid 5874] <... mkdir resumed>) = 0 [pid 5920] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] newfstatat(3, "", [pid 5920] exit_group(0 [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5918] +++ exited with 0 +++ [pid 5920] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5922 attached [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 8 [pid 5873] getdents64(3, [pid 5922] set_robust_list(0x5555947fb660, 24 [pid 5920] +++ exited with 0 +++ [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5922] <... set_robust_list resumed>) = 0 [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5875] restart_syscall(<... resuming interrupted clone ...> [pid 5876] restart_syscall(<... resuming interrupted clone ...> [pid 5873] umount2("./6/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5873] newfstatat(AT_FDCWD, "./6/binderfs", [pid 5922] chdir("./6" [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5922] <... chdir resumed>) = 0 [pid 5873] unlink("./6/binderfs" [pid 5922] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5873] <... unlink resumed>) = 0 [pid 5922] <... prctl resumed>) = 0 [pid 5873] umount2("./6/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5922] setpgid(0, 0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5922] <... setpgid resumed>) = 0 [pid 5873] newfstatat(AT_FDCWD, "./6/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] unlink("./6/cgroup.net") = 0 [pid 5873] umount2("./6/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5922] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5921] <... close resumed>) = 0 [pid 5876] <... restart_syscall resumed>) = 0 [pid 5875] <... restart_syscall resumed>) = 0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] newfstatat(AT_FDCWD, "./6/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5922] <... symlink resumed>) = 0 [pid 5873] unlink("./6/cgroup.cpu") = 0 [pid 5873] umount2("./6/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5922] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5921] close(4 [pid 5875] umount2("./6", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5921] <... close resumed>) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5922] <... symlink resumed>) = 0 [pid 5921] close(5 [pid 5875] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5873] newfstatat(AT_FDCWD, "./6/cgroup", [pid 5876] umount2("./6", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... openat resumed>) = 3 [pid 5875] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5875] getdents64(3, [pid 5922] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5921] <... close resumed>) = 0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5921] close(6 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5922] <... symlink resumed>) = 0 [pid 5876] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5875] umount2("./6/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] unlink("./6/cgroup" [pid 5922] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5921] <... close resumed>) = 0 [pid 5876] <... openat resumed>) = 3 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... unlink resumed>) = 0 [pid 5922] <... openat resumed>) = 3 [pid 5876] newfstatat(3, "", [pid 5875] newfstatat(AT_FDCWD, "./6/binderfs", [pid 5921] close(7 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5922] write(3, "1000", 4 [pid 5921] <... close resumed>) = 0 [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5873] getdents64(3, [pid 5921] close(8) = -1 EBADF (Bad file descriptor) [pid 5875] unlink("./6/binderfs" [pid 5922] <... write resumed>) = 4 [pid 5921] close(9 [pid 5876] getdents64(3, [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5922] close(3 [pid 5921] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 [pid 5873] close(3 [pid 5921] close(10) = -1 EBADF (Bad file descriptor) [pid 5921] close(11) = -1 EBADF (Bad file descriptor) [pid 5921] close(12) = -1 EBADF (Bad file descriptor) [pid 5921] close(13) = -1 EBADF (Bad file descriptor) [pid 5921] close(14) = -1 EBADF (Bad file descriptor) [pid 5921] close(15) = -1 EBADF (Bad file descriptor) [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5922] <... close resumed>) = 0 [pid 5921] close(16 [pid 5875] umount2("./6/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... close resumed>) = 0 [pid 5922] read(200, [pid 5921] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./6/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] rmdir("./6" [pid 5922] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5921] close(17 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5921] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5921] close(18) = -1 EBADF (Bad file descriptor) [pid 5921] close(19) = -1 EBADF (Bad file descriptor) [pid 5921] close(20) = -1 EBADF (Bad file descriptor) [pid 5921] close(21) = -1 EBADF (Bad file descriptor) [pid 5873] <... rmdir resumed>) = 0 [pid 5876] newfstatat(AT_FDCWD, "./6/binderfs", [pid 5922] symlink("/dev/binderfs", "./binderfs" [pid 5921] close(22 [pid 5875] newfstatat(AT_FDCWD, "./6/cgroup.net", [pid 5921] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5921] close(23 [pid 5922] <... symlink resumed>) = 0 [pid 5921] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5921] close(24 executing program [pid 5876] unlink("./6/binderfs" [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5922] write(1, "executing program\n", 18 [pid 5921] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] unlink("./6/cgroup.net" [pid 5873] mkdir("./7", 0777 [pid 5922] <... write resumed>) = 18 [pid 5921] close(25 [pid 5876] <... unlink resumed>) = 0 [pid 5921] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 [pid 5921] close(26 [pid 5922] perf_event_open( [pid 5921] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5921] close(27) = -1 EBADF (Bad file descriptor) [pid 5921] close(28) = -1 EBADF (Bad file descriptor) [pid 5921] close(29) = -1 EBADF (Bad file descriptor) [pid 5921] exit_group(0) = ? [pid 5922] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5876] umount2("./6/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] umount2("./6/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... mkdir resumed>) = 0 [pid 5922] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5922] <... bpf resumed>) = 4 [pid 5921] +++ exited with 0 +++ [pid 5876] newfstatat(AT_FDCWD, "./6/cgroup.net", [pid 5875] newfstatat(AT_FDCWD, "./6/cgroup.cpu", [pid 5922] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 5923 attached [pid 5923] set_robust_list(0x5555947fb660, 24 [pid 5922] <... bpf resumed>) = 5 [pid 5876] unlink("./6/cgroup.net" [pid 5875] unlink("./6/cgroup.cpu" [pid 5923] <... set_robust_list resumed>) = 0 [pid 5922] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5876] <... unlink resumed>) = 0 [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 9 [pid 5923] chdir("./7" [pid 5876] umount2("./6/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... unlink resumed>) = 0 [pid 5922] <... bpf resumed>) = 6 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5923] <... chdir resumed>) = 0 [pid 5876] newfstatat(AT_FDCWD, "./6/cgroup.cpu", [pid 5923] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5923] <... prctl resumed>) = 0 [pid 5876] unlink("./6/cgroup.cpu" [pid 5875] umount2("./6/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5923] setpgid(0, 0 [pid 5876] <... unlink resumed>) = 0 [pid 5923] <... setpgid resumed>) = 0 [pid 5923] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5922] perf_event_open( [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] newfstatat(AT_FDCWD, "./6/cgroup", [pid 5876] umount2("./6/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5923] <... symlink resumed>) = 0 [pid 5922] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] newfstatat(AT_FDCWD, "./6/cgroup", [pid 5923] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5923] <... symlink resumed>) = 0 [pid 5876] unlink("./6/cgroup") = 0 [pid 5923] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5876] getdents64(3, [pid 5875] unlink("./6/cgroup" [pid 5922] close(3 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5923] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5876] close(3 [pid 5923] <... openat resumed>) = 3 [pid 5876] <... close resumed>) = 0 [pid 5876] rmdir("./6" [pid 5877] umount2("./7", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] <... rmdir resumed>) = 0 [pid 5875] <... unlink resumed>) = 0 [pid 5875] getdents64(3, [pid 5923] write(3, "1000", 4 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] mkdir("./7", 0777 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5923] <... write resumed>) = 4 [pid 5877] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5876] <... mkdir resumed>) = 0 [pid 5875] close(3 [pid 5923] close(3 [pid 5875] <... close resumed>) = 0 [pid 5877] <... openat resumed>) = 3 [pid 5875] rmdir("./6" [pid 5923] <... close resumed>) = 0 [pid 5877] newfstatat(3, "", [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5923] read(200, [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5875] <... rmdir resumed>) = 0 [pid 5923] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5923] symlink("/dev/binderfs", "./binderfs" [pid 5877] getdents64(3, [pid 5875] mkdir("./7", 0777executing program [pid 5923] <... symlink resumed>) = 0 [pid 5875] <... mkdir resumed>) = 0 [pid 5923] write(1, "executing program\n", 18 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 ./strace-static-x86_64: Process 5924 attached [pid 5923] <... write resumed>) = 18 [pid 5877] umount2("./7/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5924] set_robust_list(0x5555947fb660, 24 [pid 5923] perf_event_open( [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 9 [pid 5924] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 5925 attached [pid 5877] newfstatat(AT_FDCWD, "./7/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5925] set_robust_list(0x5555947fb660, 24 [pid 5924] chdir("./7" [pid 5877] unlink("./7/binderfs" [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 9 [pid 5925] <... set_robust_list resumed>) = 0 [pid 5924] <... chdir resumed>) = 0 [pid 5877] <... unlink resumed>) = 0 [pid 5924] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5877] umount2("./7/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5924] setpgid(0, 0) = 0 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5924] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5877] newfstatat(AT_FDCWD, "./7/cgroup.net", [pid 5925] chdir("./7" [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5877] unlink("./7/cgroup.net" [pid 5925] <... chdir resumed>) = 0 [pid 5877] <... unlink resumed>) = 0 [pid 5925] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5877] umount2("./7/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5924] <... symlink resumed>) = 0 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] newfstatat(AT_FDCWD, "./7/cgroup.cpu", [pid 5925] <... prctl resumed>) = 0 [pid 5924] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5922] <... close resumed>) = 0 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5925] setpgid(0, 0 [pid 5924] <... symlink resumed>) = 0 [pid 5923] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5922] close(4 [pid 5877] unlink("./7/cgroup.cpu" [pid 5925] <... setpgid resumed>) = 0 [pid 5924] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5923] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5922] <... close resumed>) = 0 [pid 5877] <... unlink resumed>) = 0 [pid 5924] <... symlink resumed>) = 0 [pid 5922] close(5 [pid 5877] umount2("./7/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5925] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5924] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5923] <... bpf resumed>) = 4 [pid 5922] <... close resumed>) = 0 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5922] close(6 [pid 5877] newfstatat(AT_FDCWD, "./7/cgroup", [pid 5925] <... symlink resumed>) = 0 [pid 5924] <... openat resumed>) = 3 [pid 5922] <... close resumed>) = 0 [pid 5923] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5925] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5924] write(3, "1000", 4 [pid 5922] close(7 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5925] <... symlink resumed>) = 0 [pid 5922] <... close resumed>) = 0 [pid 5925] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5924] <... write resumed>) = 4 [pid 5922] close(8 [pid 5877] unlink("./7/cgroup" [pid 5925] <... symlink resumed>) = 0 [pid 5924] close(3 [pid 5922] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5925] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5924] <... close resumed>) = 0 [pid 5922] close(9) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 5924] read(200, [pid 5922] close(10 [pid 5877] getdents64(3, [pid 5925] <... openat resumed>) = 3 [pid 5924] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5923] <... bpf resumed>) = 5 [pid 5922] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5925] write(3, "1000", 4 [pid 5924] symlink("/dev/binderfs", "./binderfs" [pid 5923] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5922] close(11 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5925] <... write resumed>) = 4 [pid 5924] <... symlink resumed>) = 0 [pid 5923] <... bpf resumed>) = 6 executing program [pid 5922] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] close(3 [pid 5925] close(3 [pid 5924] write(1, "executing program\n", 18 [pid 5923] perf_event_open( [pid 5922] close(12 [pid 5925] <... close resumed>) = 0 [pid 5924] <... write resumed>) = 18 [pid 5923] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5922] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... close resumed>) = 0 [pid 5925] read(200, [pid 5924] perf_event_open( [pid 5923] close(3 [pid 5922] close(13 [pid 5877] rmdir("./7" [pid 5925] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5924] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5923] <... close resumed>) = 0 [pid 5922] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5925] symlink("/dev/binderfs", "./binderfs" [pid 5923] close(4 [pid 5922] close(14 [pid 5925] <... symlink resumed>) = 0 [pid 5924] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5922] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... rmdir resumed>) = 0 [pid 5925] write(1, "executing program\n", 18 [pid 5924] <... bpf resumed>) = 4 executing program [pid 5923] <... close resumed>) = 0 [pid 5922] close(15 [pid 5877] mkdir("./8", 0777 [pid 5925] <... write resumed>) = 18 [pid 5924] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5923] close(5 [pid 5922] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... mkdir resumed>) = 0 [pid 5925] perf_event_open({type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5923] <... close resumed>) = 0 [pid 5922] close(16) = -1 EBADF (Bad file descriptor) [pid 5925] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5924] <... bpf resumed>) = 5 [pid 5922] close(17 [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5923] close(6 [pid 5922] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5925] <... bpf resumed>) = 4 [pid 5924] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5923] <... close resumed>) = 0 [pid 5922] close(18 [pid 5925] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5922] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5926 attached [pid 5923] close(7 [pid 5922] close(19 [pid 5924] <... bpf resumed>) = 6 [pid 5923] <... close resumed>) = 0 [pid 5922] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5926] set_robust_list(0x5555947fb660, 24 [pid 5923] close(8 [pid 5922] close(20 [pid 5926] <... set_robust_list resumed>) = 0 [pid 5923] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5922] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5926] chdir("./8" [pid 5923] close(9) = -1 EBADF (Bad file descriptor) [pid 5922] close(21 [pid 5923] close(10 [pid 5922] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5926] <... chdir resumed>) = 0 [pid 5925] <... bpf resumed>) = 5 [pid 5923] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5922] close(22 [pid 5926] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5923] close(11 [pid 5922] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5926] <... prctl resumed>) = 0 [pid 5923] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5922] close(23 [pid 5926] setpgid(0, 0) = 0 [pid 5923] close(12 [pid 5922] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5926] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5923] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5923] close(13 [pid 5922] close(24 [pid 5924] perf_event_open( [pid 5922] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5926] <... symlink resumed>) = 0 [pid 5924] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5923] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5922] close(25 [pid 5923] close(14) = -1 EBADF (Bad file descriptor) [pid 5922] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5926] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5923] close(15 [pid 5922] close(26 [pid 5926] <... symlink resumed>) = 0 [pid 5924] close(3 [pid 5923] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5922] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5922] close(27 [pid 5926] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5923] close(16 [pid 5922] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5926] <... symlink resumed>) = 0 [pid 5924] <... close resumed>) = 0 [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 10 [pid 5923] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5922] close(28 [pid 5926] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5923] close(17 [pid 5922] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5926] <... openat resumed>) = 3 [pid 5925] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5924] close(4 [pid 5923] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5923] close(18 [pid 5922] close(29 [pid 5926] write(3, "1000", 4 [pid 5923] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5922] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5926] <... write resumed>) = 4 [pid 5924] <... close resumed>) = 0 [pid 5923] close(19 [pid 5922] exit_group(0 [pid 5926] close(3 [pid 5924] close(5 [pid 5923] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5922] <... exit_group resumed>) = ? [pid 5926] <... close resumed>) = 0 [pid 5925] <... bpf resumed>) = 6 [pid 5923] close(20 [pid 5925] perf_event_open( [pid 5923] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5922] +++ exited with 0 +++ [pid 5924] <... close resumed>) = 0 [pid 5926] read(200, 0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5925] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5924] close(6 [pid 5926] symlink("/dev/binderfs", "./binderfs" [pid 5925] close(3 [pid 5923] close(21 [pid 5874] restart_syscall(<... resuming interrupted clone ...> [pid 5926] <... symlink resumed>) = 0 [pid 5923] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... restart_syscall resumed>) = 0 [pid 5926] write(1, "executing program\n", 18 [pid 5924] <... close resumed>) = 0 [pid 5923] close(22executing program [pid 5926] <... write resumed>) = 18 [pid 5923] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5926] perf_event_open( [pid 5924] close(7 [pid 5923] close(23 [pid 5874] umount2("./6", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5923] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5923] close(24 [pid 5874] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5924] <... close resumed>) = 0 [pid 5923] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... openat resumed>) = 3 [pid 5924] close(8 [pid 5923] close(25 [pid 5874] newfstatat(3, "", [pid 5924] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5923] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5924] close(9 [pid 5923] close(26 [pid 5924] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5923] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5924] close(10 [pid 5923] close(27 [pid 5874] getdents64(3, [pid 5923] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5923] close(28 [pid 5874] umount2("./6/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5926] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5925] <... close resumed>) = 0 [pid 5924] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5923] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5923] close(29 [pid 5924] close(11 [pid 5874] newfstatat(AT_FDCWD, "./6/binderfs", [pid 5925] close(4 [pid 5924] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5923] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5926] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5924] close(12 [pid 5874] unlink("./6/binderfs" [pid 5925] <... close resumed>) = 0 [pid 5924] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5923] exit_group(0 [pid 5926] <... bpf resumed>) = 4 [pid 5874] <... unlink resumed>) = 0 [pid 5924] close(13 [pid 5923] <... exit_group resumed>) = ? [pid 5874] umount2("./6/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5925] close(5 [pid 5926] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] newfstatat(AT_FDCWD, "./6/cgroup.net", [pid 5925] <... close resumed>) = 0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] unlink("./6/cgroup.net") = 0 [pid 5874] umount2("./6/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5926] <... bpf resumed>) = 5 [pid 5925] close(6 [pid 5924] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5923] +++ exited with 0 +++ [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5926] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5924] close(14) = -1 EBADF (Bad file descriptor) [pid 5925] <... close resumed>) = 0 [pid 5924] close(15 [pid 5874] newfstatat(AT_FDCWD, "./6/cgroup.cpu", [pid 5926] <... bpf resumed>) = 6 [pid 5924] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5926] perf_event_open( [pid 5925] close(7 [pid 5924] close(16 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5926] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5924] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5926] close(3 [pid 5925] <... close resumed>) = 0 [pid 5924] close(17 [pid 5874] unlink("./6/cgroup.cpu" [pid 5873] umount2("./7", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5924] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... unlink resumed>) = 0 [pid 5925] close(8 [pid 5924] close(18 [pid 5874] umount2("./6/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5924] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5925] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5924] close(19 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5925] close(9 [pid 5924] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] newfstatat(AT_FDCWD, "./6/cgroup", [pid 5873] <... openat resumed>) = 3 [pid 5925] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5924] close(20 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] newfstatat(3, "", [pid 5925] close(10 [pid 5924] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] unlink("./6/cgroup" [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5925] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5924] close(21 [pid 5925] close(11 [pid 5924] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... unlink resumed>) = 0 [pid 5873] getdents64(3, [pid 5925] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5924] close(22 [pid 5874] getdents64(3, [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5925] close(12 [pid 5924] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5873] umount2("./7/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5925] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5924] close(23 [pid 5874] close(3 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5925] close(13 [pid 5924] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... close resumed>) = 0 [pid 5924] close(24) = -1 EBADF (Bad file descriptor) [pid 5924] close(25 [pid 5925] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5924] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] rmdir("./6" [pid 5873] newfstatat(AT_FDCWD, "./7/binderfs", [pid 5925] close(14 [pid 5924] close(26 [pid 5874] <... rmdir resumed>) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5925] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5924] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] mkdir("./7", 0777 [pid 5925] close(15 [pid 5924] close(27 [pid 5874] <... mkdir resumed>) = 0 [pid 5873] unlink("./7/binderfs" [pid 5925] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5924] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5925] close(16 [pid 5924] close(28) = -1 EBADF (Bad file descriptor) [pid 5924] close(29) = -1 EBADF (Bad file descriptor) [pid 5924] exit_group(0) = ? ./strace-static-x86_64: Process 5927 attached [pid 5926] <... close resumed>) = 0 [pid 5925] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... unlink resumed>) = 0 [pid 5927] set_robust_list(0x5555947fb660, 24 [pid 5926] close(4 [pid 5925] close(17 [pid 5873] umount2("./7/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5927] <... set_robust_list resumed>) = 0 [pid 5926] <... close resumed>) = 0 [pid 5925] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 9 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5927] chdir("./7" [pid 5926] close(5 [pid 5925] close(18 [pid 5924] +++ exited with 0 +++ [pid 5873] newfstatat(AT_FDCWD, "./7/cgroup.net", [pid 5927] <... chdir resumed>) = 0 [pid 5926] <... close resumed>) = 0 [pid 5925] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5927] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5926] close(6 [pid 5925] close(19 [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5927] <... prctl resumed>) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5926] <... close resumed>) = 0 [pid 5873] unlink("./7/cgroup.net" [pid 5927] setpgid(0, 0 [pid 5926] close(7 [pid 5873] <... unlink resumed>) = 0 [pid 5926] <... close resumed>) = 0 [pid 5926] close(8 [pid 5927] <... setpgid resumed>) = 0 [pid 5925] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] restart_syscall(<... resuming interrupted clone ...> [pid 5873] umount2("./7/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5927] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5926] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5925] close(20 [pid 5876] <... restart_syscall resumed>) = 0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5927] <... symlink resumed>) = 0 [pid 5926] close(9 [pid 5925] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] newfstatat(AT_FDCWD, "./7/cgroup.cpu", [pid 5926] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5925] close(21 [pid 5927] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5926] close(10 [pid 5925] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./7", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5927] <... symlink resumed>) = 0 [pid 5926] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5925] close(22 [pid 5927] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5926] close(11 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] unlink("./7/cgroup.cpu" [pid 5926] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5925] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5926] close(12 [pid 5927] <... symlink resumed>) = 0 [pid 5926] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... unlink resumed>) = 0 [pid 5926] close(13 [pid 5925] close(23 [pid 5876] <... openat resumed>) = 3 [pid 5926] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5925] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(3, "", [pid 5873] umount2("./7/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5926] close(14 [pid 5925] close(24 [pid 5926] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5925] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5927] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5926] close(15 [pid 5925] close(25 [pid 5873] newfstatat(AT_FDCWD, "./7/cgroup", [pid 5927] <... openat resumed>) = 3 [pid 5926] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5925] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] getdents64(3, [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5927] write(3, "1000", 4 [pid 5926] close(16 [pid 5925] close(26 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5873] unlink("./7/cgroup" [pid 5927] <... write resumed>) = 4 [pid 5926] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5925] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./7/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5927] close(3 [pid 5926] close(17 [pid 5925] close(27 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5927] <... close resumed>) = 0 [pid 5926] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5925] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5927] read(200, [pid 5926] close(18 [pid 5925] close(28 [pid 5876] newfstatat(AT_FDCWD, "./7/binderfs", [pid 5927] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5926] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5925] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5927] symlink("/dev/binderfs", "./binderfs" [pid 5926] close(19 [pid 5925] close(29 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... unlink resumed>) = 0 [pid 5927] <... symlink resumed>) = 0 [pid 5926] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5925] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] getdents64(3, 0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5873] close(3) = 0 [pid 5873] rmdir("./7"executing program [pid 5925] exit_group(0 [pid 5876] unlink("./7/binderfs" [pid 5926] close(20 [pid 5873] <... rmdir resumed>) = 0 [pid 5927] write(1, "executing program\n", 18 [pid 5873] mkdir("./8", 0777 [pid 5927] <... write resumed>) = 18 [pid 5926] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5925] <... exit_group resumed>) = ? [pid 5876] <... unlink resumed>) = 0 [pid 5873] <... mkdir resumed>) = 0 [pid 5876] umount2("./7/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5926] close(21 [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5928 attached [pid 5927] perf_event_open( [pid 5926] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5925] +++ exited with 0 +++ [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5928] set_robust_list(0x5555947fb660, 24 [pid 5926] close(22 [pid 5876] newfstatat(AT_FDCWD, "./7/cgroup.net", [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 10 [pid 5928] <... set_robust_list resumed>) = 0 [pid 5927] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5926] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5927] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5926] close(23 [pid 5876] unlink("./7/cgroup.net" [pid 5928] chdir("./8" [pid 5927] <... bpf resumed>) = 4 [pid 5926] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 5928] <... chdir resumed>) = 0 [pid 5927] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5926] close(24 [pid 5876] umount2("./7/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5928] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5926] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] umount2("./7", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5928] <... prctl resumed>) = 0 [pid 5926] close(25 [pid 5876] newfstatat(AT_FDCWD, "./7/cgroup.cpu", [pid 5926] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5928] setpgid(0, 0 [pid 5926] close(26 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5928] <... setpgid resumed>) = 0 [pid 5926] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] unlink("./7/cgroup.cpu" [pid 5875] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5928] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5927] <... bpf resumed>) = 5 [pid 5926] close(27 [pid 5876] <... unlink resumed>) = 0 [pid 5926] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... openat resumed>) = 3 [pid 5928] <... symlink resumed>) = 0 [pid 5926] close(28 [pid 5876] umount2("./7/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] newfstatat(3, "", [pid 5928] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5927] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5926] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5926] close(29 [pid 5928] <... symlink resumed>) = 0 [pid 5927] <... bpf resumed>) = 6 [pid 5926] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(AT_FDCWD, "./7/cgroup", [pid 5875] getdents64(3, [pid 5928] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5928] <... symlink resumed>) = 0 [pid 5926] exit_group(0 [pid 5927] perf_event_open( [pid 5875] umount2("./7/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5928] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5928] <... openat resumed>) = 3 [pid 5927] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5926] <... exit_group resumed>) = ? [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] newfstatat(AT_FDCWD, "./7/binderfs", [pid 5928] write(3, "1000", 4 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5928] <... write resumed>) = 4 [pid 5928] close(3 [pid 5875] unlink("./7/binderfs" [pid 5928] <... close resumed>) = 0 [pid 5875] <... unlink resumed>) = 0 [pid 5928] read(200, 0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5926] +++ exited with 0 +++ [pid 5875] umount2("./7/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5928] symlink("/dev/binderfs", "./binderfs" [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5928] <... symlink resumed>) = 0 [pid 5927] close(3 [pid 5875] newfstatat(AT_FDCWD, "./7/cgroup.net", [pid 5876] unlink("./7/cgroup"executing program [pid 5928] write(1, "executing program\n", 18 [pid 5877] restart_syscall(<... resuming interrupted clone ...> [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5928] <... write resumed>) = 18 [pid 5928] perf_event_open( [pid 5875] unlink("./7/cgroup.net" [pid 5876] <... unlink resumed>) = 0 [pid 5928] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5875] <... unlink resumed>) = 0 [pid 5875] umount2("./7/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5875] newfstatat(AT_FDCWD, "./7/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] unlink("./7/cgroup.cpu") = 0 [pid 5928] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5927] <... close resumed>) = 0 [pid 5877] <... restart_syscall resumed>) = 0 [pid 5876] getdents64(3, [pid 5928] <... bpf resumed>) = 4 [pid 5927] close(4 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5875] umount2("./7/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5928] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5876] close(3 [pid 5927] <... close resumed>) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] umount2("./8", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] <... close resumed>) = 0 [pid 5876] rmdir("./7" [pid 5928] <... bpf resumed>) = 5 [pid 5927] close(5 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] <... rmdir resumed>) = 0 [pid 5875] newfstatat(AT_FDCWD, "./7/cgroup", [pid 5928] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5927] <... close resumed>) = 0 [pid 5877] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5876] mkdir("./8", 0777 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5877] <... openat resumed>) = 3 [pid 5875] unlink("./7/cgroup" [pid 5928] <... bpf resumed>) = 6 [pid 5927] close(6 [pid 5877] newfstatat(3, "", [pid 5876] <... mkdir resumed>) = 0 [pid 5875] <... unlink resumed>) = 0 [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5928] perf_event_open( [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5927] <... close resumed>) = 0 [pid 5877] getdents64(3, [pid 5875] getdents64(3, [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5877] umount2("./8/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] close(3 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... close resumed>) = 0 [pid 5877] newfstatat(AT_FDCWD, "./8/binderfs", [pid 5875] rmdir("./7" [pid 5927] close(7 [pid 5875] <... rmdir resumed>) = 0 [pid 5875] mkdir("./8", 0777./strace-static-x86_64: Process 5929 attached [pid 5928] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5927] <... close resumed>) = 0 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5929] set_robust_list(0x5555947fb660, 24 [pid 5928] close(3 [pid 5927] close(8 [pid 5877] unlink("./8/binderfs" [pid 5875] <... mkdir resumed>) = 0 [pid 5929] <... set_robust_list resumed>) = 0 [pid 5927] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 10 [pid 5929] chdir("./8" [pid 5927] close(9 [pid 5877] umount2("./8/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5929] <... chdir resumed>) = 0 [pid 5927] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5929] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5927] close(10 [pid 5877] newfstatat(AT_FDCWD, "./8/cgroup.net", [pid 5929] <... prctl resumed>) = 0 [pid 5927] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5927] close(11 [pid 5877] unlink("./8/cgroup.net" [pid 5927] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 5927] close(12) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./8/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5927] close(13 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5930 attached [pid 5927] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5930] set_robust_list(0x5555947fb660, 24 [pid 5927] close(14 [pid 5877] newfstatat(AT_FDCWD, "./8/cgroup.cpu", [pid 5930] <... set_robust_list resumed>) = 0 [pid 5927] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5930] chdir("./8" [pid 5927] close(15 [pid 5929] setpgid(0, 0 [pid 5927] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./8/cgroup.cpu" [pid 5930] <... chdir resumed>) = 0 [pid 5927] close(16 [pid 5877] <... unlink resumed>) = 0 [pid 5930] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5929] <... setpgid resumed>) = 0 [pid 5927] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./8/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5930] <... prctl resumed>) = 0 [pid 5927] close(17 [pid 5930] setpgid(0, 0 [pid 5927] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5930] <... setpgid resumed>) = 0 [pid 5927] close(18 [pid 5930] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5927] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./8/cgroup", [pid 5927] close(19 [pid 5929] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5927] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5930] <... symlink resumed>) = 0 [pid 5929] <... symlink resumed>) = 0 [pid 5927] close(20 [pid 5929] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5927] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5930] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5927] close(21 [pid 5877] unlink("./8/cgroup" [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 10 [pid 5930] <... symlink resumed>) = 0 [pid 5929] <... symlink resumed>) = 0 [pid 5929] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5927] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5930] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5927] close(22 [pid 5877] <... unlink resumed>) = 0 [pid 5930] <... symlink resumed>) = 0 [pid 5929] <... symlink resumed>) = 0 [pid 5927] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5930] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5927] close(23 [pid 5877] getdents64(3, [pid 5927] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5929] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5927] close(24 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5930] <... openat resumed>) = 3 [pid 5929] <... openat resumed>) = 3 [pid 5927] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] close(3 [pid 5930] write(3, "1000", 4 [pid 5929] write(3, "1000", 4 [pid 5927] close(25 [pid 5877] <... close resumed>) = 0 [pid 5929] <... write resumed>) = 4 [pid 5930] <... write resumed>) = 4 [pid 5927] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] rmdir("./8" [pid 5930] close(3 [pid 5929] close(3 [pid 5927] close(26 [pid 5877] <... rmdir resumed>) = 0 [pid 5930] <... close resumed>) = 0 [pid 5929] <... close resumed>) = 0 [pid 5930] read(200, [pid 5927] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] mkdir("./9", 0777 [pid 5930] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5929] read(200, [pid 5927] close(27 [pid 5877] <... mkdir resumed>) = 0 [pid 5930] symlink("/dev/binderfs", "./binderfs" [pid 5929] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5927] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5929] symlink("/dev/binderfs", "./binderfs" [pid 5927] close(28 [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5930] <... symlink resumed>) = 0 [pid 5929] <... symlink resumed>) = 0 [pid 5928] <... close resumed>) = 0 [pid 5927] <... close resumed>) = -1 EBADF (Bad file descriptor) executing program ./strace-static-x86_64: Process 5931 attached [pid 5930] write(1, "executing program\n", 18 [pid 5928] close(4 [pid 5927] close(29 [pid 5931] set_robust_list(0x5555947fb660, 24 [pid 5930] <... write resumed>) = 18 [pid 5927] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5931] <... set_robust_list resumed>) = 0 [pid 5930] perf_event_open(executing program [pid 5929] write(1, "executing program\n", 18 [pid 5928] <... close resumed>) = 0 [pid 5927] exit_group(0 [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 11 [pid 5931] chdir("./9" [pid 5930] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5929] <... write resumed>) = 18 [pid 5928] close(5 [pid 5927] <... exit_group resumed>) = ? [pid 5931] <... chdir resumed>) = 0 [pid 5930] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5929] perf_event_open( [pid 5928] <... close resumed>) = 0 [pid 5931] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5930] <... bpf resumed>) = 4 [pid 5927] +++ exited with 0 +++ [pid 5929] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5931] <... prctl resumed>) = 0 [pid 5930] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5928] close(6 [pid 5929] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5931] setpgid(0, 0 [pid 5930] <... bpf resumed>) = 5 [pid 5929] <... bpf resumed>) = 4 [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5931] <... setpgid resumed>) = 0 [pid 5931] symlink("/syzcgroup/unified/syz4", "./cgroup") = 0 [pid 5929] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5931] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5930] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5928] <... close resumed>) = 0 [pid 5931] <... symlink resumed>) = 0 [pid 5931] symlink("/syzcgroup/net/syz4", "./cgroup.net") = 0 [pid 5931] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5930] <... bpf resumed>) = 6 [pid 5929] <... bpf resumed>) = 5 [pid 5928] close(7 [pid 5874] umount2("./7", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5931] <... openat resumed>) = 3 [pid 5930] perf_event_open( [pid 5929] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5928] <... close resumed>) = 0 [pid 5874] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5929] <... bpf resumed>) = 6 [pid 5928] close(8 [pid 5874] <... openat resumed>) = 3 [pid 5931] write(3, "1000", 4 [pid 5928] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] newfstatat(3, "", [pid 5930] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5929] perf_event_open( [pid 5928] close(9 [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5931] <... write resumed>) = 4 [pid 5930] close(3 [pid 5928] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] getdents64(3, [pid 5931] close(3 [pid 5930] <... close resumed>) = 0 [pid 5929] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5928] close(10 [pid 5931] <... close resumed>) = 0 [pid 5930] close(4 [pid 5928] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5931] read(200, [pid 5930] <... close resumed>) = 0 [pid 5929] close(3 [pid 5928] close(11 [pid 5874] umount2("./7/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5931] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5930] close(5 [pid 5928] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5930] <... close resumed>) = 0 [pid 5928] close(12 [pid 5874] newfstatat(AT_FDCWD, "./7/binderfs", [pid 5931] symlink("/dev/binderfs", "./binderfs" [pid 5930] close(6 [pid 5928] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5931] <... symlink resumed>) = 0 [pid 5931] write(1, "executing program\n", 18executing program [pid 5928] close(13 [pid 5874] unlink("./7/binderfs" [pid 5931] <... write resumed>) = 18 [pid 5931] perf_event_open( [pid 5928] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... unlink resumed>) = 0 [pid 5928] close(14 [pid 5874] umount2("./7/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5930] <... close resumed>) = 0 [pid 5928] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] newfstatat(AT_FDCWD, "./7/cgroup.net", [pid 5928] close(15 [pid 5930] close(7 [pid 5928] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5928] close(16) = -1 EBADF (Bad file descriptor) [pid 5874] unlink("./7/cgroup.net" [pid 5928] close(17 [pid 5874] <... unlink resumed>) = 0 [pid 5930] <... close resumed>) = 0 [pid 5928] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5930] close(8 [pid 5928] close(18 [pid 5874] umount2("./7/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5931] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5930] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5928] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5930] close(9 [pid 5928] close(19 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5928] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] newfstatat(AT_FDCWD, "./7/cgroup.cpu", [pid 5928] close(20 [pid 5931] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5929] <... close resumed>) = 0 [pid 5928] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5931] <... bpf resumed>) = 4 [pid 5930] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5929] close(4 [pid 5928] close(21 [pid 5931] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5930] close(10 [pid 5928] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] unlink("./7/cgroup.cpu" [pid 5930] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5929] <... close resumed>) = 0 [pid 5930] close(11 [pid 5929] close(5 [pid 5928] close(22 [pid 5874] <... unlink resumed>) = 0 [pid 5930] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5931] <... bpf resumed>) = 5 [pid 5930] close(12 [pid 5929] <... close resumed>) = 0 [pid 5928] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./7/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5931] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5929] close(6 [pid 5931] <... bpf resumed>) = 6 [pid 5930] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5928] close(23 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5931] perf_event_open( [pid 5930] close(13) = -1 EBADF (Bad file descriptor) [pid 5928] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] newfstatat(AT_FDCWD, "./7/cgroup", [pid 5930] close(14 [pid 5928] close(24 [pid 5931] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5930] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5929] <... close resumed>) = 0 [pid 5928] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5931] close(3 [pid 5930] close(15 [pid 5929] close(7 [pid 5928] close(25 [pid 5930] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5929] <... close resumed>) = 0 [pid 5928] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] unlink("./7/cgroup" [pid 5930] close(16 [pid 5929] close(8 [pid 5928] close(26 [pid 5930] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5929] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5929] close(9) = -1 EBADF (Bad file descriptor) [pid 5874] <... unlink resumed>) = 0 [pid 5929] close(10 [pid 5928] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5929] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5930] close(17 [pid 5929] close(11 [pid 5928] close(27 [pid 5874] getdents64(3, [pid 5930] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5929] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5928] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5930] close(18 [pid 5929] close(12 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5929] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5928] close(28 [pid 5929] close(13) = -1 EBADF (Bad file descriptor) [pid 5928] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5929] close(14) = -1 EBADF (Bad file descriptor) [pid 5928] close(29 [pid 5874] close(3 [pid 5930] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5929] close(15 [pid 5928] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5930] close(19 [pid 5929] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... close resumed>) = 0 [pid 5930] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5929] close(16 [pid 5930] close(20 [pid 5929] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] rmdir("./7" [pid 5930] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5929] close(17 [pid 5928] exit_group(0 [pid 5929] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5929] close(18) = -1 EBADF (Bad file descriptor) [pid 5929] close(19 [pid 5874] <... rmdir resumed>) = 0 [pid 5930] close(21 [pid 5929] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5928] <... exit_group resumed>) = ? [pid 5930] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5929] close(20 [pid 5874] mkdir("./8", 0777 [pid 5930] close(22 [pid 5929] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5928] +++ exited with 0 +++ [pid 5930] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5929] close(21 [pid 5874] <... mkdir resumed>) = 0 [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5929] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5929] close(22 [pid 5930] close(23) = -1 EBADF (Bad file descriptor) [pid 5930] close(24) = -1 EBADF (Bad file descriptor) [pid 5930] close(25) = -1 EBADF (Bad file descriptor) [pid 5930] close(26) = -1 EBADF (Bad file descriptor) [pid 5930] close(27) = -1 EBADF (Bad file descriptor) [pid 5930] close(28) = -1 EBADF (Bad file descriptor) [pid 5930] close(29) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5932 attached [pid 5930] exit_group(0 [pid 5932] set_robust_list(0x5555947fb660, 24 [pid 5930] <... exit_group resumed>) = ? [pid 5932] <... set_robust_list resumed>) = 0 [pid 5929] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 10 [pid 5932] chdir("./8" [pid 5929] close(23 [pid 5932] <... chdir resumed>) = 0 [pid 5929] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] umount2("./8", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5932] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5929] close(24 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5932] <... prctl resumed>) = 0 [pid 5929] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5932] setpgid(0, 0 [pid 5929] close(25 [pid 5873] <... openat resumed>) = 3 [pid 5932] <... setpgid resumed>) = 0 [pid 5930] +++ exited with 0 +++ [pid 5929] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] newfstatat(3, "", [pid 5929] close(26 [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5932] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5929] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5929] close(27 [pid 5873] getdents64(3, [pid 5875] restart_syscall(<... resuming interrupted clone ...> [pid 5929] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5932] <... symlink resumed>) = 0 [pid 5929] close(28 [pid 5932] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5929] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... restart_syscall resumed>) = 0 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5932] <... symlink resumed>) = 0 [pid 5929] close(29 [pid 5873] umount2("./8/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5932] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5929] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5932] <... symlink resumed>) = 0 [pid 5929] exit_group(0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5929] <... exit_group resumed>) = ? [pid 5873] newfstatat(AT_FDCWD, "./8/binderfs", [pid 5875] umount2("./8", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5932] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5932] <... openat resumed>) = 3 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5932] write(3, "1000", 4) = 4 [pid 5932] close(3) = 0 [pid 5873] unlink("./8/binderfs" [pid 5875] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5873] <... unlink resumed>) = 0 [pid 5875] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5873] umount2("./8/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5932] read(200, 0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5932] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5931] <... close resumed>) = 0 [pid 5875] getdents64(3, [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5932] write(1, "executing program\n", 18 [pid 5931] close(4 [pid 5929] +++ exited with 0 +++ [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5873] newfstatat(AT_FDCWD, "./8/cgroup.net", executing program [pid 5932] <... write resumed>) = 18 [pid 5932] perf_event_open({type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5931] <... close resumed>) = 0 [pid 5875] umount2("./8/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] newfstatat(AT_FDCWD, "./8/binderfs", [pid 5932] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5931] close(5 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] unlink("./8/cgroup.net" [pid 5932] <... bpf resumed>) = 4 [pid 5931] <... close resumed>) = 0 [pid 5873] <... unlink resumed>) = 0 [pid 5932] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5876] umount2("./8", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] unlink("./8/binderfs" [pid 5873] umount2("./8/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5931] close(6 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] newfstatat(AT_FDCWD, "./8/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] unlink("./8/cgroup.cpu" [pid 5932] <... bpf resumed>) = 5 [pid 5931] <... close resumed>) = 0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... unlink resumed>) = 0 [pid 5873] <... unlink resumed>) = 0 [pid 5876] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5875] umount2("./8/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5932] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5876] <... openat resumed>) = 3 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] umount2("./8/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5931] close(7 [pid 5932] <... bpf resumed>) = 6 [pid 5876] newfstatat(3, "", [pid 5875] newfstatat(AT_FDCWD, "./8/cgroup.net", [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5932] perf_event_open( [pid 5931] <... close resumed>) = 0 [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] newfstatat(AT_FDCWD, "./8/cgroup", [pid 5932] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5931] close(8 [pid 5876] getdents64(3, [pid 5875] unlink("./8/cgroup.net" [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5932] close(3 [pid 5931] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5875] <... unlink resumed>) = 0 [pid 5873] unlink("./8/cgroup" [pid 5931] close(9 [pid 5876] umount2("./8/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] umount2("./8/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5931] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5931] close(10 [pid 5876] newfstatat(AT_FDCWD, "./8/binderfs", [pid 5875] newfstatat(AT_FDCWD, "./8/cgroup.cpu", [pid 5931] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5931] close(11 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5931] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] unlink("./8/binderfs" [pid 5875] unlink("./8/cgroup.cpu" [pid 5873] <... unlink resumed>) = 0 [pid 5931] close(12) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 5875] <... unlink resumed>) = 0 [pid 5873] getdents64(3, [pid 5931] close(13 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5931] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./8/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] umount2("./8/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] close(3 [pid 5931] close(14 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5931] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(AT_FDCWD, "./8/cgroup.net", [pid 5875] newfstatat(AT_FDCWD, "./8/cgroup", [pid 5873] <... close resumed>) = 0 [pid 5931] close(15 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] rmdir("./8" [pid 5931] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] unlink("./8/cgroup.net" [pid 5875] unlink("./8/cgroup" [pid 5931] close(16 [pid 5876] <... unlink resumed>) = 0 [pid 5875] <... unlink resumed>) = 0 [pid 5873] <... rmdir resumed>) = 0 [pid 5931] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5931] close(17 [pid 5876] umount2("./8/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] getdents64(3, [pid 5931] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5873] mkdir("./9", 0777 [pid 5931] close(18) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(AT_FDCWD, "./8/cgroup.cpu", [pid 5875] close(3 [pid 5931] close(19 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] <... close resumed>) = 0 [pid 5873] <... mkdir resumed>) = 0 [pid 5932] <... close resumed>) = 0 [pid 5931] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] unlink("./8/cgroup.cpu" [pid 5875] rmdir("./8" [pid 5932] close(4 [pid 5931] close(20) = -1 EBADF (Bad file descriptor) [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5932] <... close resumed>) = 0 [pid 5931] close(21 [pid 5876] <... unlink resumed>) = 0 [pid 5875] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5933 attached [pid 5931] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5932] close(5 [pid 5933] set_robust_list(0x5555947fb660, 24 [pid 5931] close(22 [pid 5876] umount2("./8/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5933] <... set_robust_list resumed>) = 0 [pid 5931] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] mkdir("./9", 0777 [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 11 [pid 5932] <... close resumed>) = 0 [pid 5931] close(23 [pid 5876] newfstatat(AT_FDCWD, "./8/cgroup", [pid 5933] chdir("./9" [pid 5932] close(6 [pid 5931] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5931] close(24 [pid 5876] unlink("./8/cgroup" [pid 5875] <... mkdir resumed>) = 0 [pid 5931] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5933] <... chdir resumed>) = 0 [pid 5931] close(25 [pid 5876] <... unlink resumed>) = 0 [pid 5931] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5931] close(26 [pid 5876] getdents64(3, [pid 5931] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5931] close(27) = -1 EBADF (Bad file descriptor) [pid 5876] close(3 [pid 5931] close(28 [pid 5932] <... close resumed>) = 0 [pid 5931] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... close resumed>) = 0 [pid 5933] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5931] close(29 [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5933] <... prctl resumed>) = 0 [pid 5931] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] rmdir("./8" [pid 5931] exit_group(0) = ? [pid 5876] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5934 attached [pid 5933] setpgid(0, 0 [pid 5932] close(7 [pid 5931] +++ exited with 0 +++ [pid 5934] set_robust_list(0x5555947fb660, 24 [pid 5933] <... setpgid resumed>) = 0 [pid 5876] mkdir("./9", 0777 [pid 5934] <... set_robust_list resumed>) = 0 [pid 5932] <... close resumed>) = 0 [pid 5876] <... mkdir resumed>) = 0 [pid 5934] chdir("./9" [pid 5933] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5932] close(8 [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 11 [pid 5934] <... chdir resumed>) = 0 [pid 5877] restart_syscall(<... resuming interrupted clone ...> [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5934] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5933] <... symlink resumed>) = 0 [pid 5932] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5934] <... prctl resumed>) = 0 [pid 5933] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5932] close(9 [pid 5877] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 5935 attached [pid 5934] setpgid(0, 0 [pid 5935] set_robust_list(0x5555947fb660, 24) = 0 [pid 5934] <... setpgid resumed>) = 0 [pid 5933] <... symlink resumed>) = 0 [pid 5932] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./9", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 11 [pid 5935] chdir("./9" [pid 5934] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5933] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5932] close(10 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5935] <... chdir resumed>) = 0 [pid 5934] <... symlink resumed>) = 0 [pid 5933] <... symlink resumed>) = 0 [pid 5932] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5935] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5934] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5932] close(11 [pid 5877] <... openat resumed>) = 3 [pid 5935] <... prctl resumed>) = 0 [pid 5934] <... symlink resumed>) = 0 [pid 5877] newfstatat(3, "", [pid 5935] setpgid(0, 0 [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5935] <... setpgid resumed>) = 0 [pid 5934] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5933] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5932] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] getdents64(3, [pid 5935] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5934] <... symlink resumed>) = 0 [pid 5932] close(12 [pid 5935] <... symlink resumed>) = 0 [pid 5933] <... openat resumed>) = 3 [pid 5932] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5935] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5934] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5877] umount2("./9/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5935] <... symlink resumed>) = 0 [pid 5934] <... openat resumed>) = 3 [pid 5933] write(3, "1000", 4 [pid 5932] close(13 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5935] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5934] write(3, "1000", 4 [pid 5877] newfstatat(AT_FDCWD, "./9/binderfs", [pid 5935] <... symlink resumed>) = 0 [pid 5934] <... write resumed>) = 4 [pid 5933] <... write resumed>) = 4 [pid 5932] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5935] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5934] close(3 [pid 5933] close(3 [pid 5932] close(14 [pid 5877] unlink("./9/binderfs" [pid 5935] <... openat resumed>) = 3 [pid 5934] <... close resumed>) = 0 [pid 5933] <... close resumed>) = 0 [pid 5932] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5932] close(15 [pid 5935] write(3, "1000", 4 [pid 5934] read(200, [pid 5933] read(200, [pid 5932] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 5935] <... write resumed>) = 4 [pid 5934] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5933] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5932] close(16 [pid 5935] close(3 [pid 5934] symlink("/dev/binderfs", "./binderfs" [pid 5933] symlink("/dev/binderfs", "./binderfs" [pid 5932] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./9/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5935] <... close resumed>) = 0 [pid 5934] <... symlink resumed>) = 0 [pid 5932] close(17) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5932] close(18 [pid 5877] newfstatat(AT_FDCWD, "./9/cgroup.net", [pid 5932] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5935] read(200, [pid 5934] write(1, "executing program\n", 18 [pid 5933] <... symlink resumed>) = 0 [pid 5932] close(19 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 executing program [pid 5935] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5934] <... write resumed>) = 18 [pid 5933] write(1, "executing program\n", 18 [pid 5932] <... close resumed>) = -1 EBADF (Bad file descriptor) executing program [pid 5877] unlink("./9/cgroup.net" [pid 5935] symlink("/dev/binderfs", "./binderfs" [pid 5934] perf_event_open( [pid 5933] <... write resumed>) = 18 [pid 5935] <... symlink resumed>) = 0 [pid 5934] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5932] close(20 [pid 5877] <... unlink resumed>) = 0 [pid 5933] perf_event_open( [pid 5932] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./9/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOWexecuting program [pid 5935] write(1, "executing program\n", 18 [pid 5933] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5932] close(21 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5935] <... write resumed>) = 18 [pid 5933] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5935] perf_event_open( [pid 5934] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5933] <... bpf resumed>) = 4 [pid 5932] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./9/cgroup.cpu", [pid 5935] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5932] close(22 [pid 5935] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5934] <... bpf resumed>) = 4 [pid 5933] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5932] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5935] <... bpf resumed>) = 4 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5932] close(23 [pid 5935] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5934] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5933] <... bpf resumed>) = 5 [pid 5932] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./9/cgroup.cpu" [pid 5935] <... bpf resumed>) = 5 [pid 5934] <... bpf resumed>) = 5 [pid 5935] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5877] <... unlink resumed>) = 0 [pid 5935] <... bpf resumed>) = 6 [pid 5934] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5933] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5932] close(24 [pid 5935] perf_event_open( [pid 5934] <... bpf resumed>) = 6 [pid 5933] <... bpf resumed>) = 6 [pid 5932] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./9/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5935] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5934] perf_event_open( [pid 5933] perf_event_open( [pid 5932] close(25 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5932] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./9/cgroup", [pid 5934] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5935] close(3 [pid 5933] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5932] close(26 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5932] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5932] close(27 [pid 5877] unlink("./9/cgroup" [pid 5932] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5935] <... close resumed>) = 0 [pid 5877] <... unlink resumed>) = 0 [pid 5932] close(28) = -1 EBADF (Bad file descriptor) [pid 5932] close(29 [pid 5877] getdents64(3, [pid 5932] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5934] close(3 [pid 5933] close(3 [pid 5932] exit_group(0) = ? [pid 5877] close(3 [pid 5935] close(4 [pid 5933] <... close resumed>) = 0 [pid 5932] +++ exited with 0 +++ [pid 5877] <... close resumed>) = 0 [pid 5877] rmdir("./9" [pid 5935] <... close resumed>) = 0 [pid 5935] close(5 [pid 5933] close(4 [pid 5877] <... rmdir resumed>) = 0 [pid 5877] mkdir("./10", 0777 [pid 5935] <... close resumed>) = 0 [pid 5933] <... close resumed>) = 0 [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5877] <... mkdir resumed>) = 0 [pid 5935] close(6 [pid 5934] <... close resumed>) = 0 [pid 5933] close(5 [pid 5874] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5874] umount2("./8", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5935] <... close resumed>) = 0 [pid 5934] close(4 [pid 5933] <... close resumed>) = 0 [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5935] close(7 [pid 5934] <... close resumed>) = 0 [pid 5933] close(6 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5935] <... close resumed>) = 0 [pid 5934] close(5 [pid 5933] <... close resumed>) = 0 [pid 5874] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5935] close(8) = -1 EBADF (Bad file descriptor) [pid 5935] close(9) = -1 EBADF (Bad file descriptor) [pid 5934] <... close resumed>) = 0 [pid 5933] close(7 [pid 5874] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5936 attached [pid 5935] close(10 [pid 5936] set_robust_list(0x5555947fb660, 24 [pid 5935] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5934] close(6 [pid 5933] <... close resumed>) = 0 [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 12 [pid 5874] newfstatat(3, "", [pid 5936] <... set_robust_list resumed>) = 0 [pid 5935] close(11 [pid 5933] close(8 [pid 5935] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5936] chdir("./10" [pid 5933] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5936] <... chdir resumed>) = 0 [pid 5935] close(12 [pid 5934] <... close resumed>) = 0 [pid 5933] close(9 [pid 5935] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5933] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] getdents64(3, [pid 5934] close(7 [pid 5936] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5935] close(13 [pid 5933] close(10 [pid 5936] <... prctl resumed>) = 0 [pid 5935] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5933] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5935] close(14 [pid 5933] close(11 [pid 5934] <... close resumed>) = 0 [pid 5933] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5933] close(12) = -1 EBADF (Bad file descriptor) [pid 5933] close(13) = -1 EBADF (Bad file descriptor) [pid 5933] close(14) = -1 EBADF (Bad file descriptor) [pid 5933] close(15) = -1 EBADF (Bad file descriptor) [pid 5936] setpgid(0, 0 [pid 5935] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5934] close(8 [pid 5933] close(16 [pid 5874] umount2("./8/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5936] <... setpgid resumed>) = 0 [pid 5935] close(15 [pid 5934] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5933] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5935] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5934] close(9 [pid 5933] close(17 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5935] close(16 [pid 5934] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5933] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] newfstatat(AT_FDCWD, "./8/binderfs", [pid 5935] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5934] close(10 [pid 5933] close(18) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5935] close(17 [pid 5934] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5933] close(19 [pid 5874] unlink("./8/binderfs" [pid 5935] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5934] close(11 [pid 5933] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5935] close(18 [pid 5934] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5933] close(20 [pid 5874] <... unlink resumed>) = 0 [pid 5936] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5935] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5934] close(12 [pid 5933] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./8/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5935] close(19 [pid 5934] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5933] close(21 [pid 5935] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5934] close(13 [pid 5933] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5936] <... symlink resumed>) = 0 [pid 5935] close(20 [pid 5934] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5933] close(22 [pid 5874] newfstatat(AT_FDCWD, "./8/cgroup.net", [pid 5936] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5935] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5933] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5934] close(14 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5936] <... symlink resumed>) = 0 [pid 5935] close(21 [pid 5934] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5936] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5933] close(23 [pid 5935] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5934] close(15 [pid 5933] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] unlink("./8/cgroup.net" [pid 5936] <... symlink resumed>) = 0 [pid 5935] close(22 [pid 5934] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5933] close(24 [pid 5936] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5935] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5934] close(16 [pid 5933] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5936] <... openat resumed>) = 3 [pid 5933] close(25 [pid 5874] <... unlink resumed>) = 0 [pid 5936] write(3, "1000", 4 [pid 5933] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5936] <... write resumed>) = 4 [pid 5935] close(23 [pid 5934] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5933] close(26 [pid 5874] umount2("./8/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5936] close(3 [pid 5935] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5934] close(17 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5935] close(24 [pid 5934] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] newfstatat(AT_FDCWD, "./8/cgroup.cpu", [pid 5935] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5934] close(18 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5935] close(25 [pid 5934] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] unlink("./8/cgroup.cpu" [pid 5935] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5934] close(19 [pid 5874] <... unlink resumed>) = 0 [pid 5935] close(26 [pid 5934] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5935] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5934] close(20 [pid 5874] umount2("./8/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5935] close(27) = -1 EBADF (Bad file descriptor) [pid 5934] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5935] close(28 [pid 5934] close(21 [pid 5874] newfstatat(AT_FDCWD, "./8/cgroup", [pid 5935] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5934] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5935] close(29 [pid 5934] close(22 [pid 5874] unlink("./8/cgroup" [pid 5935] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5934] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... unlink resumed>) = 0 [pid 5935] exit_group(0 [pid 5934] close(23 [pid 5874] getdents64(3, [pid 5934] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5935] <... exit_group resumed>) = ? [pid 5934] close(24 [pid 5933] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5936] <... close resumed>) = 0 [pid 5934] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5933] close(27 [pid 5874] close(3 [pid 5936] read(200, [pid 5934] close(25 [pid 5933] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5936] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5934] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5933] close(28 [pid 5874] <... close resumed>) = 0 [pid 5936] symlink("/dev/binderfs", "./binderfs" [pid 5935] +++ exited with 0 +++ [pid 5934] close(26 [pid 5933] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5936] <... symlink resumed>) = 0 [pid 5934] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5933] close(29 [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5874] rmdir("./8" [pid 5936] write(1, "executing program\n", 18executing program [pid 5934] close(27 [pid 5933] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... rmdir resumed>) = 0 [pid 5936] <... write resumed>) = 18 [pid 5934] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5933] exit_group(0 [pid 5934] close(28 [pid 5876] umount2("./9", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] mkdir("./9", 0777 [pid 5934] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] <... mkdir resumed>) = 0 [pid 5934] close(29 [pid 5876] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5933] <... exit_group resumed>) = ? [pid 5876] <... openat resumed>) = 3 [pid 5936] perf_event_open( [pid 5934] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(3, "", [pid 5934] exit_group(0 [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5934] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5937 attached [pid 5936] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5934] +++ exited with 0 +++ [pid 5933] +++ exited with 0 +++ [pid 5876] getdents64(3, 0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5936] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5937] set_robust_list(0x5555947fb660, 24 [pid 5876] umount2("./9/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 11 [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5873] restart_syscall(<... resuming interrupted clone ...> [pid 5937] <... set_robust_list resumed>) = 0 [pid 5876] newfstatat(AT_FDCWD, "./9/binderfs", [pid 5875] restart_syscall(<... resuming interrupted clone ...> [pid 5873] <... restart_syscall resumed>) = 0 [pid 5875] <... restart_syscall resumed>) = 0 [pid 5936] <... bpf resumed>) = 4 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5936] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5876] unlink("./9/binderfs" [pid 5873] umount2("./9", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] umount2("./9", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5875] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5873] <... openat resumed>) = 3 [pid 5875] newfstatat(3, "", [pid 5873] newfstatat(3, "", [pid 5876] <... unlink resumed>) = 0 [pid 5876] umount2("./9/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5875] getdents64(3, [pid 5873] getdents64(3, [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5875] umount2("./9/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5937] chdir("./9" [pid 5936] <... bpf resumed>) = 5 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] umount2("./9/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] newfstatat(AT_FDCWD, "./9/cgroup.net", [pid 5875] newfstatat(AT_FDCWD, "./9/binderfs", [pid 5937] <... chdir resumed>) = 0 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5937] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5936] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5876] unlink("./9/cgroup.net" [pid 5875] unlink("./9/binderfs" [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5937] <... prctl resumed>) = 0 [pid 5876] <... unlink resumed>) = 0 [pid 5875] <... unlink resumed>) = 0 [pid 5873] newfstatat(AT_FDCWD, "./9/binderfs", [pid 5937] setpgid(0, 0 [pid 5876] umount2("./9/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] umount2("./9/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5937] <... setpgid resumed>) = 0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5936] <... bpf resumed>) = 6 [pid 5876] newfstatat(AT_FDCWD, "./9/cgroup.cpu", [pid 5875] newfstatat(AT_FDCWD, "./9/cgroup.net", [pid 5873] unlink("./9/binderfs" [pid 5937] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... unlink resumed>) = 0 [pid 5875] unlink("./9/cgroup.net" [pid 5873] umount2("./9/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5936] perf_event_open( [pid 5875] <... unlink resumed>) = 0 [pid 5875] umount2("./9/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] newfstatat(AT_FDCWD, "./9/cgroup.net", [pid 5937] <... symlink resumed>) = 0 [pid 5876] unlink("./9/cgroup.cpu" [pid 5875] newfstatat(AT_FDCWD, "./9/cgroup.cpu", [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5936] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5937] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5936] close(3 [pid 5876] <... unlink resumed>) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] unlink("./9/cgroup.net" [pid 5937] <... symlink resumed>) = 0 [pid 5876] umount2("./9/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] unlink("./9/cgroup.cpu" [pid 5873] <... unlink resumed>) = 0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... unlink resumed>) = 0 [pid 5873] umount2("./9/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5937] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5876] newfstatat(AT_FDCWD, "./9/cgroup", [pid 5875] umount2("./9/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5937] <... symlink resumed>) = 0 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] newfstatat(AT_FDCWD, "./9/cgroup.cpu", [pid 5937] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5876] unlink("./9/cgroup" [pid 5875] newfstatat(AT_FDCWD, "./9/cgroup", [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] <... unlink resumed>) = 0 [pid 5937] <... openat resumed>) = 3 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] unlink("./9/cgroup.cpu" [pid 5876] getdents64(3, [pid 5875] unlink("./9/cgroup" [pid 5873] <... unlink resumed>) = 0 [pid 5937] write(3, "1000", 4) = 4 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5875] <... unlink resumed>) = 0 [pid 5873] umount2("./9/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5937] close(3 [pid 5876] close(3) = 0 [pid 5875] getdents64(3, [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5937] <... close resumed>) = 0 [pid 5876] rmdir("./9" [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5873] newfstatat(AT_FDCWD, "./9/cgroup", [pid 5937] read(200, [pid 5876] <... rmdir resumed>) = 0 [pid 5937] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5937] symlink("/dev/binderfs", "./binderfs" [pid 5876] mkdir("./10", 0777 [pid 5875] close(3 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] <... mkdir resumed>) = 0 [pid 5937] <... symlink resumed>) = 0 [pid 5875] <... close resumed>) = 0 [pid 5873] unlink("./9/cgroup" [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5875] rmdir("./9"executing program [pid 5873] <... unlink resumed>) = 0 [pid 5937] write(1, "executing program\n", 18) = 18 [pid 5875] <... rmdir resumed>) = 0 [pid 5937] perf_event_open(./strace-static-x86_64: Process 5938 attached [pid 5875] mkdir("./10", 0777 [pid 5873] getdents64(3, [pid 5938] set_robust_list(0x5555947fb660, 24 [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 12 [pid 5875] <... mkdir resumed>) = 0 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5938] <... set_robust_list resumed>) = 0 [pid 5873] close(3 [pid 5937] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5873] <... close resumed>) = 0 [pid 5938] chdir("./10" [pid 5937] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5936] <... close resumed>) = 0 ./strace-static-x86_64: Process 5939 attached [pid 5938] <... chdir resumed>) = 0 [pid 5873] rmdir("./9" [pid 5939] set_robust_list(0x5555947fb660, 24 [pid 5938] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 12 [pid 5873] <... rmdir resumed>) = 0 [pid 5939] <... set_robust_list resumed>) = 0 [pid 5938] <... prctl resumed>) = 0 [pid 5936] close(4 [pid 5873] mkdir("./10", 0777 [pid 5939] chdir("./10" [pid 5938] setpgid(0, 0 [pid 5936] <... close resumed>) = 0 [pid 5873] <... mkdir resumed>) = 0 [pid 5939] <... chdir resumed>) = 0 [pid 5938] <... setpgid resumed>) = 0 [pid 5937] <... bpf resumed>) = 4 [pid 5936] close(5 [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5940 attached [pid 5939] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5938] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5937] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5936] <... close resumed>) = 0 [pid 5939] <... prctl resumed>) = 0 [pid 5938] <... symlink resumed>) = 0 [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 12 [pid 5940] set_robust_list(0x5555947fb660, 24 [pid 5936] close(6 [pid 5939] setpgid(0, 0 [pid 5938] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5940] <... set_robust_list resumed>) = 0 [pid 5939] <... setpgid resumed>) = 0 [pid 5938] <... symlink resumed>) = 0 [pid 5939] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5938] symlink("/syzcgroup/net/syz3", "./cgroup.net") = 0 [pid 5937] <... bpf resumed>) = 5 [pid 5940] chdir("./10" [pid 5939] <... symlink resumed>) = 0 [pid 5936] <... close resumed>) = 0 [pid 5940] <... chdir resumed>) = 0 [pid 5938] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5939] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5938] <... openat resumed>) = 3 [pid 5940] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5939] <... symlink resumed>) = 0 [pid 5940] <... prctl resumed>) = 0 [pid 5936] close(7 [pid 5940] setpgid(0, 0 [pid 5939] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5938] write(3, "1000", 4 [pid 5940] <... setpgid resumed>) = 0 [pid 5939] <... symlink resumed>) = 0 [pid 5940] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5939] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5940] <... symlink resumed>) = 0 [pid 5939] <... openat resumed>) = 3 [pid 5938] <... write resumed>) = 4 [pid 5937] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5936] <... close resumed>) = 0 [pid 5938] close(3 [pid 5936] close(8 [pid 5940] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5939] write(3, "1000", 4 [pid 5938] <... close resumed>) = 0 [pid 5936] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5940] <... symlink resumed>) = 0 [pid 5936] close(9 [pid 5940] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5939] <... write resumed>) = 4 [pid 5938] read(200, [pid 5936] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5940] <... symlink resumed>) = 0 [pid 5937] <... bpf resumed>) = 6 [pid 5939] close(3 [pid 5938] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5939] <... close resumed>) = 0 [pid 5938] symlink("/dev/binderfs", "./binderfs" [pid 5937] perf_event_open( [pid 5936] close(10 [pid 5940] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5939] read(200, [pid 5938] <... symlink resumed>) = 0 [pid 5940] <... openat resumed>) = 3 [pid 5939] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) executing program [pid 5938] write(1, "executing program\n", 18 [pid 5937] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5936] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5939] symlink("/dev/binderfs", "./binderfs" [pid 5938] <... write resumed>) = 18 [pid 5940] write(3, "1000", 4 [pid 5939] <... symlink resumed>) = 0 [pid 5938] perf_event_open( [pid 5937] close(3 [pid 5940] <... write resumed>) = 4 executing program [pid 5939] write(1, "executing program\n", 18 [pid 5938] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5936] close(11 [pid 5940] close(3 [pid 5939] <... write resumed>) = 18 [pid 5939] perf_event_open( [pid 5936] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5938] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5937] <... close resumed>) = 0 [pid 5940] <... close resumed>) = 0 [pid 5938] <... bpf resumed>) = 4 [pid 5936] close(12 [pid 5939] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5938] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5940] read(200, [pid 5939] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5937] close(4 [pid 5936] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5940] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5939] <... bpf resumed>) = 4 [pid 5938] <... bpf resumed>) = 5 [pid 5937] <... close resumed>) = 0 [pid 5936] close(13 [pid 5940] symlink("/dev/binderfs", "./binderfs" [pid 5939] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5936] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5940] <... symlink resumed>) = 0 [pid 5938] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5937] close(5executing program [pid 5939] <... bpf resumed>) = 5 [pid 5937] <... close resumed>) = 0 [pid 5936] close(14 [pid 5940] write(1, "executing program\n", 18 [pid 5938] <... bpf resumed>) = 6 [pid 5940] <... write resumed>) = 18 [pid 5937] close(6 [pid 5936] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5939] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5940] perf_event_open( [pid 5939] <... bpf resumed>) = 6 [pid 5936] close(15 [pid 5939] perf_event_open({type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5939] close(3 [pid 5940] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5938] perf_event_open( [pid 5937] <... close resumed>) = 0 [pid 5936] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5940] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80) = 4 [pid 5939] <... close resumed>) = 0 [pid 5938] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5936] close(16 [pid 5937] close(7 [pid 5940] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5939] close(4 [pid 5938] close(3 [pid 5937] <... close resumed>) = 0 [pid 5936] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5939] <... close resumed>) = 0 [pid 5938] <... close resumed>) = 0 [pid 5939] close(5 [pid 5937] close(8 [pid 5939] <... close resumed>) = 0 [pid 5938] close(4 [pid 5937] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5940] <... bpf resumed>) = 5 [pid 5939] close(6 [pid 5938] <... close resumed>) = 0 [pid 5936] close(17 [pid 5940] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5938] close(5 [pid 5937] close(9 [pid 5936] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5939] <... close resumed>) = 0 [pid 5938] <... close resumed>) = 0 [pid 5937] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5936] close(18 [pid 5940] <... bpf resumed>) = 6 [pid 5939] close(7 [pid 5938] close(6 [pid 5937] close(10 [pid 5936] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5940] perf_event_open( [pid 5939] <... close resumed>) = 0 [pid 5937] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5936] close(19 [pid 5940] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5939] close(8 [pid 5938] <... close resumed>) = 0 [pid 5937] close(11 [pid 5936] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5940] close(3 [pid 5939] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5937] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5936] close(20 [pid 5938] close(7 [pid 5939] close(9 [pid 5937] close(12 [pid 5936] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5939] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5938] <... close resumed>) = 0 [pid 5937] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5939] close(10 [pid 5938] close(8 [pid 5937] close(13 [pid 5939] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5938] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5937] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5939] close(11 [pid 5938] close(9 [pid 5937] close(14 [pid 5939] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5938] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5937] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5939] close(12 [pid 5938] close(10 [pid 5937] close(15 [pid 5939] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5938] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5937] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5936] close(21 [pid 5939] close(13 [pid 5938] close(11 [pid 5937] close(16 [pid 5939] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5938] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5937] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5939] close(14 [pid 5938] close(12 [pid 5937] close(17 [pid 5936] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5939] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5938] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5936] close(22 [pid 5939] close(15 [pid 5937] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5939] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5938] close(13 [pid 5937] close(18 [pid 5936] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5939] close(16 [pid 5938] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5937] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5939] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5938] close(14 [pid 5937] close(19 [pid 5936] close(23 [pid 5939] close(17 [pid 5938] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5937] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5939] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5938] close(15 [pid 5937] close(20 [pid 5939] close(18 [pid 5938] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5937] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5939] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5939] close(19 [pid 5938] close(16 [pid 5937] close(21 [pid 5936] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5939] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5938] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5937] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5936] close(24 [pid 5939] close(20) = -1 EBADF (Bad file descriptor) [pid 5938] close(17 [pid 5937] close(22 [pid 5936] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5939] close(21 [pid 5938] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5937] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5939] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5938] close(18 [pid 5937] close(23 [pid 5936] close(25 [pid 5939] close(22 [pid 5938] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5936] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5939] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5938] close(19 [pid 5937] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5936] close(26 [pid 5939] close(23 [pid 5938] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5937] close(24 [pid 5939] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5938] close(20 [pid 5937] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5939] close(24 [pid 5938] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5937] close(25 [pid 5936] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5939] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5938] close(21 [pid 5939] close(25 [pid 5937] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5939] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5938] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5937] close(26 [pid 5936] close(27 [pid 5939] close(26 [pid 5938] close(22 [pid 5937] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5936] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5939] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5939] close(27 [pid 5938] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5937] close(27 [pid 5936] close(28 [pid 5939] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5938] close(23 [pid 5937] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5936] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5939] close(28 [pid 5938] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5937] close(28 [pid 5936] close(29 [pid 5939] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5938] close(24 [pid 5937] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5936] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5939] close(29 [pid 5938] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5937] close(29 [pid 5939] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5938] close(25 [pid 5937] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5939] exit_group(0 [pid 5936] exit_group(0 [pid 5939] <... exit_group resumed>) = ? [pid 5937] exit_group(0 [pid 5936] <... exit_group resumed>) = ? [pid 5938] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5939] +++ exited with 0 +++ [pid 5938] close(26 [pid 5937] <... exit_group resumed>) = ? [pid 5938] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5938] close(27) = -1 EBADF (Bad file descriptor) [pid 5940] <... close resumed>) = 0 [pid 5938] close(28 [pid 5937] +++ exited with 0 +++ [pid 5936] +++ exited with 0 +++ [pid 5940] close(4 [pid 5938] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5940] <... close resumed>) = 0 [pid 5938] close(29 [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5938] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5940] close(5 [pid 5875] umount2("./10", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5940] <... close resumed>) = 0 [pid 5938] exit_group(0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5940] close(6 [pid 5875] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5940] <... close resumed>) = 0 [pid 5938] <... exit_group resumed>) = ? [pid 5940] close(7 [pid 5875] <... openat resumed>) = 3 [pid 5940] <... close resumed>) = 0 [pid 5875] newfstatat(3, "", [pid 5940] close(8 [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5940] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5940] close(9 [pid 5875] getdents64(3, [pid 5940] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5938] +++ exited with 0 +++ [pid 5940] close(10 [pid 5875] umount2("./10/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5940] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5940] close(11 [pid 5875] newfstatat(AT_FDCWD, "./10/binderfs", [pid 5940] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./10", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5940] close(12 [pid 5874] umount2("./9", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5940] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5940] close(13 [pid 5877] <... openat resumed>) = 3 [pid 5874] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5940] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(3, "", [pid 5875] unlink("./10/binderfs" [pid 5874] <... openat resumed>) = 3 [pid 5940] close(14) = -1 EBADF (Bad file descriptor) [pid 5874] newfstatat(3, "", [pid 5875] <... unlink resumed>) = 0 [pid 5940] close(15) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./10/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5940] close(16 [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5874] getdents64(3, [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5875] newfstatat(AT_FDCWD, "./10/cgroup.net", [pid 5877] getdents64(3, [pid 5874] umount2("./9/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5940] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5940] close(17 [pid 5877] umount2("./10/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5940] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] unlink("./10/cgroup.net" [pid 5874] newfstatat(AT_FDCWD, "./9/binderfs", [pid 5940] close(18 [pid 5877] newfstatat(AT_FDCWD, "./10/binderfs", [pid 5940] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] <... unlink resumed>) = 0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5940] close(19 [pid 5877] unlink("./10/binderfs" [pid 5876] umount2("./10", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] umount2("./10/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] unlink("./9/binderfs" [pid 5940] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] <... unlink resumed>) = 0 [pid 5940] close(20 [pid 5876] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] umount2("./9/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5940] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 5876] <... openat resumed>) = 3 [pid 5877] umount2("./10/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5940] close(21 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] newfstatat(3, "", [pid 5875] newfstatat(AT_FDCWD, "./10/cgroup.cpu", [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5940] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./10/cgroup.net", [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] newfstatat(AT_FDCWD, "./9/cgroup.net", [pid 5940] close(22 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] getdents64(3, [pid 5875] unlink("./10/cgroup.cpu" [pid 5877] unlink("./10/cgroup.net" [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5877] <... unlink resumed>) = 0 [pid 5940] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5940] close(23) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./10/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] umount2("./10/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] newfstatat(AT_FDCWD, "./10/cgroup.cpu", [pid 5876] newfstatat(AT_FDCWD, "./10/binderfs", [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5877] unlink("./10/cgroup.cpu" [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5877] <... unlink resumed>) = 0 [pid 5874] unlink("./9/cgroup.net" [pid 5875] <... unlink resumed>) = 0 [pid 5940] close(24 [pid 5876] unlink("./10/binderfs" [pid 5940] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./10/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] <... unlink resumed>) = 0 [pid 5875] umount2("./10/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... unlink resumed>) = 0 [pid 5940] close(25 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5940] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./10/cgroup", [pid 5876] umount2("./10/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] newfstatat(AT_FDCWD, "./10/cgroup", [pid 5874] umount2("./9/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5940] close(26 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5940] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./10/cgroup" [pid 5876] newfstatat(AT_FDCWD, "./10/cgroup.net", [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5940] close(27 [pid 5877] <... unlink resumed>) = 0 [pid 5875] unlink("./10/cgroup" [pid 5874] newfstatat(AT_FDCWD, "./9/cgroup.cpu", [pid 5940] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] getdents64(3, [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] <... unlink resumed>) = 0 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5876] unlink("./10/cgroup.net" [pid 5940] close(28 [pid 5877] close(3 [pid 5876] <... unlink resumed>) = 0 [pid 5875] getdents64(3, [pid 5940] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... close resumed>) = 0 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5940] close(29 [pid 5877] rmdir("./10" [pid 5876] umount2("./10/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] close(3 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5940] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... rmdir resumed>) = 0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... close resumed>) = 0 [pid 5874] unlink("./9/cgroup.cpu" [pid 5940] exit_group(0 [pid 5877] mkdir("./11", 0777 [pid 5876] newfstatat(AT_FDCWD, "./10/cgroup.cpu", [pid 5875] rmdir("./10" [pid 5940] <... exit_group resumed>) = ? [pid 5877] <... mkdir resumed>) = 0 [pid 5874] <... unlink resumed>) = 0 [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5940] +++ exited with 0 +++ [pid 5876] unlink("./10/cgroup.cpu") = 0 ./strace-static-x86_64: Process 5941 attached [pid 5876] umount2("./10/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... rmdir resumed>) = 0 [pid 5874] umount2("./9/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5941] set_robust_list(0x5555947fb660, 24 [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 13 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] mkdir("./11", 0777 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5941] <... set_robust_list resumed>) = 0 [pid 5876] newfstatat(AT_FDCWD, "./10/cgroup", [pid 5875] <... mkdir resumed>) = 0 [pid 5874] newfstatat(AT_FDCWD, "./9/cgroup", [pid 5873] restart_syscall(<... resuming interrupted clone ...> [pid 5941] chdir("./11" [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... restart_syscall resumed>) = 0 [pid 5874] unlink("./9/cgroup" [pid 5941] <... chdir resumed>) = 0 [pid 5876] unlink("./10/cgroup" [pid 5874] <... unlink resumed>) = 0 [pid 5941] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5876] <... unlink resumed>) = 0 [pid 5874] getdents64(3, [pid 5941] <... prctl resumed>) = 0 [pid 5876] getdents64(3, [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5942 attached [pid 5941] setpgid(0, 0 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 13 [pid 5874] close(3 [pid 5873] umount2("./10", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5942] set_robust_list(0x5555947fb660, 24 [pid 5941] <... setpgid resumed>) = 0 [pid 5876] close(3 [pid 5874] <... close resumed>) = 0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5942] <... set_robust_list resumed>) = 0 [pid 5876] <... close resumed>) = 0 [pid 5874] rmdir("./9" [pid 5876] rmdir("./10" [pid 5874] <... rmdir resumed>) = 0 [pid 5873] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5941] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5874] mkdir("./10", 0777) = 0 [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5942] chdir("./11" [pid 5941] <... symlink resumed>) = 0 [pid 5876] <... rmdir resumed>) = 0 [pid 5873] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5943 attached [pid 5942] <... chdir resumed>) = 0 [pid 5941] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5876] mkdir("./11", 0777 [pid 5873] newfstatat(3, "", [pid 5943] set_robust_list(0x5555947fb660, 24) = 0 [pid 5941] <... symlink resumed>) = 0 [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 12 [pid 5943] chdir("./10" [pid 5942] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5876] <... mkdir resumed>) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5942] <... prctl resumed>) = 0 [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5873] getdents64(3, [pid 5942] setpgid(0, 0 [pid 5943] <... chdir resumed>) = 0 [pid 5942] <... setpgid resumed>) = 0 [pid 5941] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5943] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5941] <... symlink resumed>) = 0 [pid 5942] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5943] <... prctl resumed>) = 0 [pid 5941] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5943] setpgid(0, 0 [pid 5941] <... openat resumed>) = 3 [pid 5943] <... setpgid resumed>) = 0 [pid 5943] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5941] write(3, "1000", 4) = 4 ./strace-static-x86_64: Process 5944 attached [pid 5943] <... symlink resumed>) = 0 [pid 5942] <... symlink resumed>) = 0 [pid 5941] close(3 [pid 5873] umount2("./10/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5944] set_robust_list(0x5555947fb660, 24 [pid 5943] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5942] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5941] <... close resumed>) = 0 [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 13 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5944] <... set_robust_list resumed>) = 0 [pid 5943] <... symlink resumed>) = 0 [pid 5873] newfstatat(AT_FDCWD, "./10/binderfs", [pid 5942] <... symlink resumed>) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5943] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5942] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5873] unlink("./10/binderfs" [pid 5944] chdir("./11" [pid 5943] <... symlink resumed>) = 0 [pid 5942] <... symlink resumed>) = 0 [pid 5941] read(200, [pid 5873] <... unlink resumed>) = 0 [pid 5944] <... chdir resumed>) = 0 [pid 5943] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5942] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5941] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5873] umount2("./10/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5944] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5942] <... openat resumed>) = 3 [pid 5941] symlink("/dev/binderfs", "./binderfs" [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5943] <... openat resumed>) = 3 [pid 5942] write(3, "1000", 4 [pid 5873] newfstatat(AT_FDCWD, "./10/cgroup.net", [pid 5944] <... prctl resumed>) = 0 [pid 5942] <... write resumed>) = 4 [pid 5941] <... symlink resumed>) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5943] write(3, "1000", 4 [pid 5944] setpgid(0, 0 [pid 5943] <... write resumed>) = 4 [pid 5942] close(3 [pid 5941] write(1, "executing program\n", 18executing program [pid 5873] unlink("./10/cgroup.net" [pid 5944] <... setpgid resumed>) = 0 [pid 5943] close(3 [pid 5942] <... close resumed>) = 0 [pid 5941] <... write resumed>) = 18 [pid 5873] <... unlink resumed>) = 0 [pid 5942] read(200, [pid 5873] umount2("./10/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5943] <... close resumed>) = 0 [pid 5942] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5943] read(200, 0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5942] symlink("/dev/binderfs", "./binderfs" [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5944] symlink("/syzcgroup/unified/syz3", "./cgroup"executing program [pid 5943] symlink("/dev/binderfs", "./binderfs" [pid 5942] <... symlink resumed>) = 0 [pid 5941] perf_event_open( [pid 5873] newfstatat(AT_FDCWD, "./10/cgroup.cpu", [pid 5942] write(1, "executing program\n", 18 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5942] <... write resumed>) = 18 [pid 5942] perf_event_open( [pid 5941] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5942] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5873] unlink("./10/cgroup.cpu" [pid 5943] <... symlink resumed>) = 0 [pid 5942] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5944] <... symlink resumed>) = 0 [pid 5943] write(1, "executing program\n", 18 [pid 5941] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80executing program [pid 5873] <... unlink resumed>) = 0 [pid 5944] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5943] <... write resumed>) = 18 [pid 5942] <... bpf resumed>) = 4 [pid 5941] <... bpf resumed>) = 4 [pid 5873] umount2("./10/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5942] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5944] <... symlink resumed>) = 0 [pid 5941] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5943] perf_event_open( [pid 5944] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5943] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5943] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5944] <... symlink resumed>) = 0 [pid 5942] <... bpf resumed>) = 5 [pid 5941] <... bpf resumed>) = 5 [pid 5873] newfstatat(AT_FDCWD, "./10/cgroup", [pid 5944] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5943] <... bpf resumed>) = 4 [pid 5942] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5941] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5944] <... openat resumed>) = 3 [pid 5943] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5941] <... bpf resumed>) = 6 [pid 5944] write(3, "1000", 4 [pid 5942] <... bpf resumed>) = 6 [pid 5873] unlink("./10/cgroup" [pid 5944] <... write resumed>) = 4 [pid 5942] perf_event_open( [pid 5873] <... unlink resumed>) = 0 [pid 5944] close(3 [pid 5942] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5873] getdents64(3, [pid 5944] <... close resumed>) = 0 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5944] read(200, [pid 5943] <... bpf resumed>) = 5 [pid 5942] close(3 [pid 5941] perf_event_open( [pid 5873] close(3 [pid 5944] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5943] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5942] <... close resumed>) = 0 [pid 5941] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5873] <... close resumed>) = 0 [pid 5944] symlink("/dev/binderfs", "./binderfs" [pid 5942] close(4 [pid 5941] close(3 [pid 5873] rmdir("./10" [pid 5944] <... symlink resumed>) = 0 [pid 5942] <... close resumed>) = 0 [pid 5941] <... close resumed>) = 0 [pid 5873] <... rmdir resumed>) = 0 [pid 5943] <... bpf resumed>) = 6 [pid 5944] write(1, "executing program\n", 18executing program [pid 5943] perf_event_open( [pid 5942] close(5 [pid 5941] close(4 [pid 5873] mkdir("./11", 0777 [pid 5944] <... write resumed>) = 18 [pid 5943] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5942] <... close resumed>) = 0 [pid 5941] <... close resumed>) = 0 [pid 5873] <... mkdir resumed>) = 0 [pid 5944] perf_event_open( [pid 5943] close(3 [pid 5942] close(6 [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5944] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5941] close(5 [pid 5944] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5943] <... close resumed>) = 0 [pid 5942] <... close resumed>) = 0 [pid 5941] <... close resumed>) = 0 ./strace-static-x86_64: Process 5945 attached [pid 5944] <... bpf resumed>) = 4 [pid 5942] close(7) = 0 [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 13 [pid 5944] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5942] close(8 [pid 5945] set_robust_list(0x5555947fb660, 24 [pid 5943] close(4 [pid 5942] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5941] close(6 [pid 5942] close(9) = -1 EBADF (Bad file descriptor) [pid 5945] <... set_robust_list resumed>) = 0 [pid 5943] <... close resumed>) = 0 [pid 5942] close(10 [pid 5945] chdir("./11" [pid 5941] <... close resumed>) = 0 [pid 5942] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5945] <... chdir resumed>) = 0 [pid 5943] close(5 [pid 5942] close(11 [pid 5941] close(7 [pid 5944] <... bpf resumed>) = 5 [pid 5942] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5945] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5944] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5943] <... close resumed>) = 0 [pid 5942] close(12 [pid 5945] <... prctl resumed>) = 0 [pid 5944] <... bpf resumed>) = 6 [pid 5943] close(6 [pid 5942] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5941] <... close resumed>) = 0 [pid 5945] setpgid(0, 0 [pid 5944] perf_event_open( [pid 5942] close(13 [pid 5941] close(8 [pid 5944] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5942] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5942] close(14 [pid 5941] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5944] close(3 [pid 5942] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5941] close(9 [pid 5942] close(15 [pid 5941] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5942] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5942] close(16 [pid 5941] close(10 [pid 5945] <... setpgid resumed>) = 0 [pid 5942] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5941] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5943] <... close resumed>) = 0 [pid 5942] close(17) = -1 EBADF (Bad file descriptor) [pid 5941] close(11 [pid 5942] close(18 [pid 5941] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5942] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5941] close(12 [pid 5942] close(19) = -1 EBADF (Bad file descriptor) [pid 5941] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5942] close(20 [pid 5941] close(13 [pid 5942] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5941] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5943] close(7 [pid 5942] close(21 [pid 5941] close(14 [pid 5942] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5942] close(22 [pid 5941] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5942] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5941] close(15 [pid 5942] close(23) = -1 EBADF (Bad file descriptor) [pid 5941] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5945] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5942] close(24 [pid 5941] close(16 [pid 5943] <... close resumed>) = 0 [pid 5942] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5945] <... symlink resumed>) = 0 [pid 5943] close(8 [pid 5941] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5943] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5943] close(9) = -1 EBADF (Bad file descriptor) [pid 5943] close(10) = -1 EBADF (Bad file descriptor) [pid 5943] close(11) = -1 EBADF (Bad file descriptor) [pid 5943] close(12) = -1 EBADF (Bad file descriptor) [pid 5945] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5943] close(13 [pid 5942] close(25 [pid 5941] close(17 [pid 5943] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5942] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5941] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5943] close(14) = -1 EBADF (Bad file descriptor) [pid 5941] close(18 [pid 5943] close(15) = -1 EBADF (Bad file descriptor) [pid 5943] close(16) = -1 EBADF (Bad file descriptor) [pid 5943] close(17 [pid 5942] close(26 [pid 5943] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5941] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5945] <... symlink resumed>) = 0 [pid 5942] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5945] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5943] close(18 [pid 5941] close(19 [pid 5944] <... close resumed>) = 0 [pid 5942] close(27 [pid 5941] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5944] close(4 [pid 5943] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5943] close(19) = -1 EBADF (Bad file descriptor) [pid 5943] close(20) = -1 EBADF (Bad file descriptor) [pid 5943] close(21 [pid 5944] <... close resumed>) = 0 [pid 5943] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5945] <... symlink resumed>) = 0 [pid 5944] close(5 [pid 5943] close(22 [pid 5942] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5941] close(20 [pid 5945] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5943] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5945] <... openat resumed>) = 3 [pid 5944] <... close resumed>) = 0 [pid 5945] write(3, "1000", 4 [pid 5942] close(28 [pid 5945] <... write resumed>) = 4 [pid 5943] close(23 [pid 5941] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5945] close(3) = 0 [pid 5944] close(6 [pid 5943] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5942] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5941] close(21 [pid 5943] close(24 [pid 5941] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5945] read(200, [pid 5944] <... close resumed>) = 0 [pid 5943] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5942] close(29 [pid 5941] close(22 [pid 5945] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5944] close(7 [pid 5943] close(25 [pid 5942] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5945] symlink("/dev/binderfs", "./binderfs" [pid 5943] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5941] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5943] close(26 [pid 5941] close(23 [pid 5945] <... symlink resumed>) = 0 [pid 5944] <... close resumed>) = 0 [pid 5944] close(8 [pid 5942] exit_group(0 [pid 5941] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5943] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5944] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5944] close(9) = -1 EBADF (Bad file descriptor) [pid 5944] close(10) = -1 EBADF (Bad file descriptor) [pid 5944] close(11) = -1 EBADF (Bad file descriptor) [pid 5944] close(12) = -1 EBADF (Bad file descriptor) [pid 5944] close(13) = -1 EBADF (Bad file descriptor) [pid 5944] close(14) = -1 EBADF (Bad file descriptor) [pid 5944] close(15) = -1 EBADF (Bad file descriptor) [pid 5944] close(16) = -1 EBADF (Bad file descriptor) [pid 5944] close(17) = -1 EBADF (Bad file descriptor) [pid 5944] close(18) = -1 EBADF (Bad file descriptor) [pid 5944] close(19) = -1 EBADF (Bad file descriptor) [pid 5944] close(20) = -1 EBADF (Bad file descriptor) [pid 5944] close(21) = -1 EBADF (Bad file descriptor) [pid 5944] close(22) = -1 EBADF (Bad file descriptor) [pid 5944] close(23) = -1 EBADF (Bad file descriptor) [pid 5944] close(24) = -1 EBADF (Bad file descriptor) [pid 5944] close(25) = -1 EBADF (Bad file descriptor) [pid 5944] close(26) = -1 EBADF (Bad file descriptor) [pid 5944] close(27) = -1 EBADF (Bad file descriptor) [pid 5944] close(28) = -1 EBADF (Bad file descriptor) [pid 5944] close(29) = -1 EBADF (Bad file descriptor) [pid 5944] exit_group(0) = ? [pid 5945] write(1, "executing program\n", 18 [pid 5943] close(27 [pid 5942] <... exit_group resumed>) = ? [pid 5941] close(24executing program [pid 5945] <... write resumed>) = 18 [pid 5943] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5941] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5945] perf_event_open({type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5945] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5944] +++ exited with 0 +++ [pid 5943] close(28 [pid 5942] +++ exited with 0 +++ [pid 5941] close(25 [pid 5943] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5941] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5943] close(29 [pid 5941] close(26 [pid 5943] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5941] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5941] close(27) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./11", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5941] close(28 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5943] exit_group(0 [pid 5941] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5941] close(29 [pid 5876] <... openat resumed>) = 3 [pid 5941] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./11", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] newfstatat(3, "", [pid 5945] <... bpf resumed>) = 4 [pid 5941] exit_group(0 [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5945] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5943] <... exit_group resumed>) = ? [pid 5941] <... exit_group resumed>) = ? [pid 5876] getdents64(3, 0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5876] umount2("./11/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5876] newfstatat(AT_FDCWD, "./11/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] unlink("./11/binderfs" [pid 5945] <... bpf resumed>) = 5 [pid 5943] +++ exited with 0 +++ [pid 5941] +++ exited with 0 +++ [pid 5876] <... unlink resumed>) = 0 [pid 5875] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5945] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5876] umount2("./11/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5875] <... openat resumed>) = 3 [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5945] <... bpf resumed>) = 6 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5945] perf_event_open( [pid 5876] newfstatat(AT_FDCWD, "./11/cgroup.net", [pid 5875] newfstatat(3, "", [pid 5945] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5945] close(3 [pid 5877] umount2("./11", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] unlink("./11/cgroup.net" [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5874] umount2("./10", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] <... unlink resumed>) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5875] getdents64(3, [pid 5874] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5877] <... openat resumed>) = 3 [pid 5874] <... openat resumed>) = 3 [pid 5877] newfstatat(3, "", [pid 5876] umount2("./11/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5874] newfstatat(3, "", [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] umount2("./11/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5877] getdents64(3, [pid 5876] newfstatat(AT_FDCWD, "./11/cgroup.cpu", [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] umount2("./11/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] getdents64(3, [pid 5876] unlink("./11/cgroup.cpu" [pid 5875] newfstatat(AT_FDCWD, "./11/binderfs", [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] <... unlink resumed>) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] umount2("./11/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5875] unlink("./11/binderfs" [pid 5876] newfstatat(AT_FDCWD, "./11/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] <... unlink resumed>) = 0 [pid 5876] unlink("./11/cgroup") = 0 [pid 5875] umount2("./11/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] umount2("./10/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5877] newfstatat(AT_FDCWD, "./11/binderfs", [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] getdents64(3, [pid 5875] newfstatat(AT_FDCWD, "./11/cgroup.net", [pid 5874] newfstatat(AT_FDCWD, "./10/binderfs", [pid 5877] unlink("./11/binderfs" [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] close(3 [pid 5875] unlink("./11/cgroup.net" [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] <... close resumed>) = 0 [pid 5877] <... unlink resumed>) = 0 [pid 5876] rmdir("./11" [pid 5875] <... unlink resumed>) = 0 [pid 5874] unlink("./10/binderfs" [pid 5877] umount2("./11/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5876] <... rmdir resumed>) = 0 [pid 5875] umount2("./11/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... unlink resumed>) = 0 [pid 5877] newfstatat(AT_FDCWD, "./11/cgroup.net", [pid 5876] mkdir("./12", 0777 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] umount2("./10/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] newfstatat(AT_FDCWD, "./11/cgroup.cpu", [pid 5877] unlink("./11/cgroup.net" [pid 5876] <... mkdir resumed>) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5875] unlink("./11/cgroup.cpu" [pid 5945] <... close resumed>) = 0 [pid 5877] <... unlink resumed>) = 0 [pid 5874] newfstatat(AT_FDCWD, "./10/cgroup.net", ./strace-static-x86_64: Process 5946 attached [pid 5945] close(4 [pid 5877] umount2("./11/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... unlink resumed>) = 0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5945] <... close resumed>) = 0 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 14 [pid 5875] umount2("./11/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] unlink("./10/cgroup.net" [pid 5946] set_robust_list(0x5555947fb660, 24 [pid 5877] newfstatat(AT_FDCWD, "./11/cgroup.cpu", [pid 5945] close(5 [pid 5874] <... unlink resumed>) = 0 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] umount2("./10/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5946] <... set_robust_list resumed>) = 0 [pid 5945] <... close resumed>) = 0 [pid 5877] unlink("./11/cgroup.cpu" [pid 5875] newfstatat(AT_FDCWD, "./11/cgroup", [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5945] close(6 [pid 5877] <... unlink resumed>) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] newfstatat(AT_FDCWD, "./10/cgroup.cpu", [pid 5946] chdir("./12" [pid 5877] umount2("./11/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] unlink("./10/cgroup.cpu" [pid 5877] newfstatat(AT_FDCWD, "./11/cgroup", [pid 5874] <... unlink resumed>) = 0 [pid 5945] <... close resumed>) = 0 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] umount2("./10/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5877] unlink("./11/cgroup" [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] <... unlink resumed>) = 0 [pid 5874] newfstatat(AT_FDCWD, "./10/cgroup", [pid 5946] <... chdir resumed>) = 0 [pid 5945] close(7 [pid 5877] getdents64(3, [pid 5875] unlink("./11/cgroup" [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5946] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5874] unlink("./10/cgroup" [pid 5946] <... prctl resumed>) = 0 [pid 5945] <... close resumed>) = 0 [pid 5875] <... unlink resumed>) = 0 [pid 5874] <... unlink resumed>) = 0 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5874] getdents64(3, [pid 5946] setpgid(0, 0 [pid 5945] close(8 [pid 5877] close(3 [pid 5875] getdents64(3, [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5946] <... setpgid resumed>) = 0 [pid 5945] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... close resumed>) = 0 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5874] close(3 [pid 5945] close(9 [pid 5875] close(3 [pid 5874] <... close resumed>) = 0 [pid 5874] rmdir("./10" [pid 5875] <... close resumed>) = 0 [pid 5946] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5945] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] rmdir("./11" [pid 5875] rmdir("./11" [pid 5874] <... rmdir resumed>) = 0 [pid 5874] mkdir("./11", 0777 [pid 5945] close(10 [pid 5877] <... rmdir resumed>) = 0 [pid 5875] <... rmdir resumed>) = 0 [pid 5874] <... mkdir resumed>) = 0 [pid 5945] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5946] <... symlink resumed>) = 0 [pid 5945] close(11 [pid 5877] mkdir("./12", 0777 [pid 5875] mkdir("./12", 0777 [pid 5946] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5945] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5947 attached [pid 5947] set_robust_list(0x5555947fb660, 24 [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 13 [pid 5947] <... set_robust_list resumed>) = 0 [pid 5946] <... symlink resumed>) = 0 [pid 5945] close(12 [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5875] <... mkdir resumed>) = 0 [pid 5946] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5945] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5947] chdir("./11" [pid 5946] <... symlink resumed>) = 0 [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5947] <... chdir resumed>) = 0 [pid 5947] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5946] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5945] close(13./strace-static-x86_64: Process 5948 attached [pid 5947] <... prctl resumed>) = 0 [pid 5945] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5947] setpgid(0, 0 [pid 5945] close(14 [pid 5947] <... setpgid resumed>) = 0 [pid 5945] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5946] <... openat resumed>) = 3 [pid 5945] close(15) = -1 EBADF (Bad file descriptor) [pid 5946] write(3, "1000", 4 [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 14 [pid 5945] close(16 [pid 5948] set_robust_list(0x5555947fb660, 24./strace-static-x86_64: Process 5949 attached [pid 5947] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5946] <... write resumed>) = 4 [pid 5945] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5949] set_robust_list(0x5555947fb660, 24 [pid 5948] <... set_robust_list resumed>) = 0 [pid 5947] <... symlink resumed>) = 0 [pid 5946] close(3 [pid 5945] close(17 [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 14 [pid 5949] <... set_robust_list resumed>) = 0 [pid 5947] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5945] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5949] chdir("./12" [pid 5948] chdir("./12" [pid 5947] <... symlink resumed>) = 0 [pid 5946] <... close resumed>) = 0 [pid 5945] close(18 [pid 5949] <... chdir resumed>) = 0 [pid 5948] <... chdir resumed>) = 0 [pid 5947] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5946] read(200, [pid 5949] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5948] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5945] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5949] <... prctl resumed>) = 0 [pid 5948] <... prctl resumed>) = 0 [pid 5946] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5949] setpgid(0, 0 [pid 5948] setpgid(0, 0 [pid 5947] <... symlink resumed>) = 0 [pid 5946] symlink("/dev/binderfs", "./binderfs" [pid 5945] close(19 [pid 5949] <... setpgid resumed>) = 0 [pid 5947] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5948] <... setpgid resumed>) = 0 [pid 5949] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5947] <... openat resumed>) = 3 [pid 5946] <... symlink resumed>) = 0 [pid 5945] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5947] write(3, "1000", 4 [pid 5945] close(20 [pid 5947] <... write resumed>) = 4 [pid 5947] close(3) = 0 [pid 5947] read(200, [pid 5949] <... symlink resumed>) = 0 [pid 5948] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5947] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) executing program [pid 5946] write(1, "executing program\n", 18 [pid 5945] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5949] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5945] close(21 [pid 5946] <... write resumed>) = 18 [pid 5945] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5945] close(22) = -1 EBADF (Bad file descriptor) [pid 5945] close(23) = -1 EBADF (Bad file descriptor) [pid 5945] close(24) = -1 EBADF (Bad file descriptor) [pid 5948] <... symlink resumed>) = 0 [pid 5947] symlink("/dev/binderfs", "./binderfs" [pid 5949] <... symlink resumed>) = 0 [pid 5948] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5947] <... symlink resumed>) = 0 [pid 5946] perf_event_open( executing program [pid 5945] close(25 [pid 5949] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5948] <... symlink resumed>) = 0 [pid 5947] write(1, "executing program\n", 18 [pid 5945] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5949] <... symlink resumed>) = 0 [pid 5948] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5947] <... write resumed>) = 18 [pid 5949] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5946] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5945] close(26 [pid 5949] <... openat resumed>) = 3 [pid 5947] perf_event_open( [pid 5945] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5949] write(3, "1000", 4 [pid 5948] <... symlink resumed>) = 0 [pid 5947] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5946] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5945] close(27 [pid 5949] <... write resumed>) = 4 [pid 5948] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5947] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5945] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5949] close(3 [pid 5946] <... bpf resumed>) = 4 [pid 5945] close(28 [pid 5947] <... bpf resumed>) = 4 [pid 5949] <... close resumed>) = 0 [pid 5945] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5949] read(200, [pid 5948] <... openat resumed>) = 3 [pid 5946] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5945] close(29 [pid 5949] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5948] write(3, "1000", 4 [pid 5947] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5948] <... write resumed>) = 4 [pid 5945] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5949] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5948] close(3 [pid 5945] exit_group(0 executing program [pid 5949] write(1, "executing program\n", 18) = 18 [pid 5949] perf_event_open( [pid 5948] <... close resumed>) = 0 [pid 5947] <... bpf resumed>) = 5 [pid 5945] <... exit_group resumed>) = ? [pid 5948] read(200, [pid 5949] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5949] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5945] +++ exited with 0 +++ [pid 5948] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5946] <... bpf resumed>) = 5 [pid 5948] symlink("/dev/binderfs", "./binderfs" [pid 5946] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5947] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5949] <... bpf resumed>) = 4 [pid 5948] <... symlink resumed>) = 0 [pid 5949] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5947] <... bpf resumed>) = 6 [pid 5946] <... bpf resumed>) = 6 [pid 5948] write(1, "executing program\n", 18 [pid 5947] perf_event_open( [pid 5946] perf_event_open(executing program [pid 5948] <... write resumed>) = 18 [pid 5947] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5946] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5948] perf_event_open({type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5947] close(3 [pid 5873] umount2("./11", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5947] <... close resumed>) = 0 [pid 5946] close(3 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5949] <... bpf resumed>) = 5 [pid 5948] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5949] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5948] <... bpf resumed>) = 4 [pid 5947] close(4 [pid 5946] <... close resumed>) = 0 [pid 5873] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5949] <... bpf resumed>) = 6 [pid 5948] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5947] <... close resumed>) = 0 [pid 5949] perf_event_open( [pid 5873] <... openat resumed>) = 3 [pid 5947] close(5 [pid 5946] close(4 [pid 5949] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5946] <... close resumed>) = 0 [pid 5949] close(3 [pid 5947] <... close resumed>) = 0 [pid 5946] close(5 [pid 5873] newfstatat(3, "", [pid 5949] <... close resumed>) = 0 [pid 5948] <... bpf resumed>) = 5 [pid 5947] close(6 [pid 5946] <... close resumed>) = 0 [pid 5949] close(4 [pid 5948] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5947] <... close resumed>) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5949] <... close resumed>) = 0 [pid 5948] <... bpf resumed>) = 6 [pid 5947] close(7 [pid 5946] close(6 [pid 5949] close(5 [pid 5873] getdents64(3, [pid 5948] perf_event_open( [pid 5949] <... close resumed>) = 0 [pid 5948] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5947] <... close resumed>) = 0 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5949] close(6 [pid 5948] close(3 [pid 5947] close(8 [pid 5873] umount2("./11/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5947] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5946] <... close resumed>) = 0 [pid 5947] close(9 [pid 5946] close(7 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5947] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] newfstatat(AT_FDCWD, "./11/binderfs", [pid 5947] close(10 [pid 5949] <... close resumed>) = 0 [pid 5947] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5949] close(7 [pid 5947] close(11 [pid 5946] <... close resumed>) = 0 [pid 5949] <... close resumed>) = 0 [pid 5947] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5946] close(8 [pid 5873] unlink("./11/binderfs" [pid 5949] close(8 [pid 5947] close(12 [pid 5946] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... unlink resumed>) = 0 [pid 5949] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5947] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5946] close(9 [pid 5949] close(9 [pid 5947] close(13 [pid 5946] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] umount2("./11/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5949] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5947] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5949] close(10 [pid 5946] close(10 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5949] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5947] close(14 [pid 5946] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] newfstatat(AT_FDCWD, "./11/cgroup.net", [pid 5949] close(11 [pid 5947] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5946] close(11 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5949] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5947] close(15 [pid 5946] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5949] close(12) = -1 EBADF (Bad file descriptor) [pid 5947] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5946] close(12 [pid 5873] unlink("./11/cgroup.net" [pid 5949] close(13 [pid 5947] close(16 [pid 5946] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5947] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... unlink resumed>) = 0 [pid 5946] close(13 [pid 5949] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5949] close(14) = -1 EBADF (Bad file descriptor) [pid 5949] close(15 [pid 5947] close(17 [pid 5946] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] umount2("./11/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5949] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5947] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5946] close(14 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5949] close(16 [pid 5947] close(18 [pid 5946] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] newfstatat(AT_FDCWD, "./11/cgroup.cpu", [pid 5949] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5947] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5946] close(15 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5949] close(17 [pid 5947] close(19 [pid 5949] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5949] close(18 [pid 5948] <... close resumed>) = 0 [pid 5947] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5946] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] unlink("./11/cgroup.cpu" [pid 5949] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5948] close(4 [pid 5947] close(20 [pid 5946] close(16 [pid 5949] close(19 [pid 5946] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5949] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5946] close(17 [pid 5949] close(20 [pid 5946] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5949] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5946] close(18 [pid 5949] close(21) = -1 EBADF (Bad file descriptor) [pid 5948] <... close resumed>) = 0 [pid 5947] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5946] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... unlink resumed>) = 0 [pid 5949] close(22 [pid 5948] close(5 [pid 5947] close(21 [pid 5946] close(19 [pid 5873] umount2("./11/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5949] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5948] <... close resumed>) = 0 [pid 5947] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5946] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5949] close(23 [pid 5948] close(6 [pid 5947] close(22 [pid 5946] close(20 [pid 5949] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5948] <... close resumed>) = 0 [pid 5947] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5946] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] newfstatat(AT_FDCWD, "./11/cgroup", [pid 5949] close(24 [pid 5948] close(7 [pid 5947] close(23 [pid 5946] close(21 [pid 5949] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5948] <... close resumed>) = 0 [pid 5947] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5946] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5949] close(25 [pid 5948] close(8 [pid 5947] close(24 [pid 5946] close(22 [pid 5873] unlink("./11/cgroup" [pid 5949] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5948] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5947] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5946] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5949] close(26 [pid 5948] close(9 [pid 5947] close(25 [pid 5873] <... unlink resumed>) = 0 [pid 5949] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5948] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5947] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5946] close(23 [pid 5949] close(27 [pid 5948] close(10 [pid 5947] close(26 [pid 5946] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] getdents64(3, [pid 5949] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5948] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5947] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5946] close(24 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5949] close(28 [pid 5948] close(11 [pid 5947] close(27 [pid 5946] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5949] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5948] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5946] close(25 [pid 5873] close(3 [pid 5949] close(29 [pid 5948] close(12 [pid 5947] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... close resumed>) = 0 [pid 5949] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5948] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5947] close(28 [pid 5946] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] rmdir("./11" [pid 5948] close(13 [pid 5947] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... rmdir resumed>) = 0 [pid 5948] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5947] close(29 [pid 5949] exit_group(0 [pid 5948] close(14 [pid 5947] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] mkdir("./12", 0777 [pid 5949] <... exit_group resumed>) = ? [pid 5948] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5947] exit_group(0 [pid 5946] close(26 [pid 5948] close(15 [pid 5947] <... exit_group resumed>) = ? [pid 5946] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... mkdir resumed>) = 0 [pid 5948] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5948] close(16 [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5946] close(27 [pid 5948] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5948] close(17 [pid 5946] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5946] close(28) = -1 EBADF (Bad file descriptor) [pid 5946] close(29 [pid 5948] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5946] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5950 attached [pid 5950] set_robust_list(0x5555947fb660, 24 [pid 5949] +++ exited with 0 +++ [pid 5948] close(18 [pid 5947] +++ exited with 0 +++ [pid 5946] exit_group(0 [pid 5948] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5948] close(19) = -1 EBADF (Bad file descriptor) [pid 5948] close(20) = -1 EBADF (Bad file descriptor) [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5948] close(21 [pid 5875] restart_syscall(<... resuming interrupted clone ...> [pid 5948] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5948] close(22 [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5948] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5950] <... set_robust_list resumed>) = 0 [pid 5948] close(23 [pid 5946] <... exit_group resumed>) = ? [pid 5948] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./11", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 14 [pid 5948] close(24 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5948] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5948] close(25 [pid 5874] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5948] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... openat resumed>) = 3 [pid 5948] close(26) = -1 EBADF (Bad file descriptor) [pid 5874] newfstatat(3, "", [pid 5948] close(27 [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5948] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] getdents64(3, [pid 5948] close(28 [pid 5946] +++ exited with 0 +++ [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5950] chdir("./12" [pid 5948] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./11/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5948] close(29 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5948] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] newfstatat(AT_FDCWD, "./11/binderfs", [pid 5948] exit_group(0) = ? [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5950] <... chdir resumed>) = 0 [pid 5875] <... restart_syscall resumed>) = 0 [pid 5950] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5950] <... prctl resumed>) = 0 [pid 5948] +++ exited with 0 +++ [pid 5874] unlink("./11/binderfs" [pid 5950] setpgid(0, 0) = 0 [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5875] umount2("./12", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5950] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5877] restart_syscall(<... resuming interrupted clone ...> [pid 5875] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5874] <... unlink resumed>) = 0 [pid 5877] <... restart_syscall resumed>) = 0 [pid 5875] <... openat resumed>) = 3 [pid 5950] <... symlink resumed>) = 0 [pid 5876] umount2("./12", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] newfstatat(3, "", [pid 5874] umount2("./11/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5950] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5877] umount2("./12", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5875] getdents64(3, [pid 5874] newfstatat(AT_FDCWD, "./11/cgroup.net", [pid 5877] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5876] <... openat resumed>) = 3 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5877] newfstatat(3, "", [pid 5876] newfstatat(3, "", [pid 5875] umount2("./12/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] unlink("./11/cgroup.net" [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] <... unlink resumed>) = 0 [pid 5950] <... symlink resumed>) = 0 [pid 5876] getdents64(3, [pid 5875] newfstatat(AT_FDCWD, "./12/binderfs", [pid 5874] umount2("./11/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5950] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5877] getdents64(3, [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5876] umount2("./12/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] unlink("./12/binderfs" [pid 5874] newfstatat(AT_FDCWD, "./11/cgroup.cpu", [pid 5877] umount2("./12/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... unlink resumed>) = 0 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] newfstatat(AT_FDCWD, "./12/binderfs", [pid 5875] umount2("./12/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5950] <... symlink resumed>) = 0 [pid 5877] newfstatat(AT_FDCWD, "./12/binderfs", [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] unlink("./11/cgroup.cpu" [pid 5950] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] unlink("./12/binderfs" [pid 5875] newfstatat(AT_FDCWD, "./12/cgroup.net", [pid 5874] <... unlink resumed>) = 0 [pid 5877] unlink("./12/binderfs") = 0 [pid 5876] <... unlink resumed>) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] umount2("./11/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5877] umount2("./12/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] umount2("./12/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] unlink("./12/cgroup.net" [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... unlink resumed>) = 0 [pid 5874] newfstatat(AT_FDCWD, "./11/cgroup", [pid 5876] newfstatat(AT_FDCWD, "./12/cgroup.net", [pid 5875] umount2("./12/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] unlink("./12/cgroup.net" [pid 5875] newfstatat(AT_FDCWD, "./12/cgroup.cpu", [pid 5874] unlink("./11/cgroup" [pid 5950] <... openat resumed>) = 3 [pid 5877] newfstatat(AT_FDCWD, "./12/cgroup.net", [pid 5876] <... unlink resumed>) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] umount2("./12/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] unlink("./12/cgroup.cpu" [pid 5874] <... unlink resumed>) = 0 [pid 5950] write(3, "1000", 4 [pid 5877] unlink("./12/cgroup.net" [pid 5950] <... write resumed>) = 4 [pid 5950] close(3 [pid 5877] <... unlink resumed>) = 0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... unlink resumed>) = 0 [pid 5874] getdents64(3, [pid 5950] <... close resumed>) = 0 [pid 5877] umount2("./12/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] newfstatat(AT_FDCWD, "./12/cgroup.cpu", [pid 5875] umount2("./12/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5950] read(200, [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] close(3 [pid 5876] unlink("./12/cgroup.cpu" [pid 5950] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5877] newfstatat(AT_FDCWD, "./12/cgroup.cpu", [pid 5876] <... unlink resumed>) = 0 [pid 5875] newfstatat(AT_FDCWD, "./12/cgroup", [pid 5874] <... close resumed>) = 0 [pid 5950] symlink("/dev/binderfs", "./binderfs" [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] umount2("./12/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] unlink("./12/cgroup" [pid 5874] rmdir("./11" [pid 5950] <... symlink resumed>) = 0 [pid 5877] unlink("./12/cgroup.cpu" [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... unlink resumed>) = 0 [pid 5874] <... rmdir resumed>) = 0 [pid 5876] newfstatat(AT_FDCWD, "./12/cgroup", executing program [pid 5950] write(1, "executing program\n", 18 [pid 5877] <... unlink resumed>) = 0 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] getdents64(3, [pid 5874] mkdir("./12", 0777 [pid 5950] <... write resumed>) = 18 [pid 5877] umount2("./12/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] unlink("./12/cgroup" [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5874] <... mkdir resumed>) = 0 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] <... unlink resumed>) = 0 [pid 5950] perf_event_open( [pid 5875] close(3 [pid 5876] getdents64(3, [pid 5875] <... close resumed>) = 0 [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5950] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5877] newfstatat(AT_FDCWD, "./12/cgroup", [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5875] rmdir("./12" [pid 5876] close(3 [pid 5875] <... rmdir resumed>) = 0 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5877] unlink("./12/cgroup" [pid 5876] <... close resumed>) = 0 [pid 5875] mkdir("./13", 0777 [pid 5876] rmdir("./12" [pid 5875] <... mkdir resumed>) = 0 [pid 5876] <... rmdir resumed>) = 0 [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5950] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5877] <... unlink resumed>) = 0 [pid 5876] mkdir("./13", 0777./strace-static-x86_64: Process 5952 attached ./strace-static-x86_64: Process 5951 attached [pid 5950] <... bpf resumed>) = 4 [pid 5877] getdents64(3, [pid 5876] <... mkdir resumed>) = 0 [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 14 [pid 5952] set_robust_list(0x5555947fb660, 24 [pid 5951] set_robust_list(0x5555947fb660, 24 [pid 5950] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5952] <... set_robust_list resumed>) = 0 [pid 5951] <... set_robust_list resumed>) = 0 [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 15 [pid 5952] chdir("./13" [pid 5877] close(3) = 0 [pid 5952] <... chdir resumed>) = 0 [pid 5951] chdir("./12" [pid 5950] <... bpf resumed>) = 5 [pid 5877] rmdir("./12"./strace-static-x86_64: Process 5953 attached [pid 5950] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5877] <... rmdir resumed>) = 0 [pid 5953] set_robust_list(0x5555947fb660, 24 [pid 5952] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 15 [pid 5953] <... set_robust_list resumed>) = 0 [pid 5950] <... bpf resumed>) = 6 [pid 5953] chdir("./13" [pid 5952] <... prctl resumed>) = 0 [pid 5877] mkdir("./13", 0777 [pid 5953] <... chdir resumed>) = 0 [pid 5953] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5953] setpgid(0, 0 [pid 5877] <... mkdir resumed>) = 0 [pid 5952] setpgid(0, 0 [pid 5950] perf_event_open( [pid 5953] <... setpgid resumed>) = 0 [pid 5952] <... setpgid resumed>) = 0 [pid 5951] <... chdir resumed>) = 0 [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5953] symlink("/syzcgroup/unified/syz3", "./cgroup"./strace-static-x86_64: Process 5954 attached ) = 0 [pid 5952] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5951] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5950] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5954] set_robust_list(0x5555947fb660, 24 [pid 5951] <... prctl resumed>) = 0 [pid 5954] <... set_robust_list resumed>) = 0 [pid 5951] setpgid(0, 0) = 0 [pid 5953] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5952] <... symlink resumed>) = 0 [pid 5951] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5950] close(3 [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 15 [pid 5954] chdir("./13" [pid 5953] <... symlink resumed>) = 0 [pid 5952] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5951] <... symlink resumed>) = 0 [pid 5953] symlink("/syzcgroup/net/syz3", "./cgroup.net") = 0 [pid 5951] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5954] <... chdir resumed>) = 0 [pid 5952] <... symlink resumed>) = 0 [pid 5953] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5954] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5953] <... openat resumed>) = 3 [pid 5951] <... symlink resumed>) = 0 [pid 5953] write(3, "1000", 4 [pid 5954] <... prctl resumed>) = 0 [pid 5952] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5951] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5954] setpgid(0, 0 [pid 5953] <... write resumed>) = 4 [pid 5952] <... symlink resumed>) = 0 [pid 5954] <... setpgid resumed>) = 0 [pid 5953] close(3 [pid 5952] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5951] <... symlink resumed>) = 0 [pid 5954] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5953] <... close resumed>) = 0 [pid 5952] <... openat resumed>) = 3 [pid 5951] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5954] <... symlink resumed>) = 0 [pid 5953] read(200, [pid 5952] write(3, "1000", 4 [pid 5951] <... openat resumed>) = 3 [pid 5954] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5953] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5952] <... write resumed>) = 4 [pid 5951] write(3, "1000", 4 [pid 5954] <... symlink resumed>) = 0 [pid 5953] symlink("/dev/binderfs", "./binderfs"executing program [pid 5952] close(3 [pid 5951] <... write resumed>) = 4 [pid 5954] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5953] <... symlink resumed>) = 0 [pid 5952] <... close resumed>) = 0 [pid 5951] close(3 [pid 5954] <... symlink resumed>) = 0 [pid 5953] write(1, "executing program\n", 18 [pid 5952] read(200, [pid 5951] <... close resumed>) = 0 [pid 5954] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5953] <... write resumed>) = 18 [pid 5952] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5951] read(200, [pid 5953] perf_event_open( [pid 5954] <... openat resumed>) = 3 [pid 5952] symlink("/dev/binderfs", "./binderfs" [pid 5950] <... close resumed>) = 0 [pid 5954] write(3, "1000", 4 [pid 5953] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5952] <... symlink resumed>) = 0 [pid 5951] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5950] close(4 [pid 5954] <... write resumed>) = 4 [pid 5953] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80executing program [pid 5952] write(1, "executing program\n", 18 [pid 5951] symlink("/dev/binderfs", "./binderfs" [pid 5954] close(3 [pid 5953] <... bpf resumed>) = 4 [pid 5952] <... write resumed>) = 18 [pid 5951] <... symlink resumed>) = 0 [pid 5950] <... close resumed>) = 0 [pid 5954] <... close resumed>) = 0 [pid 5953] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5954] read(200, executing program [pid 5952] perf_event_open( [pid 5951] write(1, "executing program\n", 18 [pid 5954] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5950] close(5 [pid 5951] <... write resumed>) = 18 [pid 5954] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5953] <... bpf resumed>) = 5 [pid 5950] <... close resumed>) = 0 [pid 5954] write(1, "executing program\n", 18 [pid 5953] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5952] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 executing program [pid 5951] perf_event_open( [pid 5950] close(6 [pid 5954] <... write resumed>) = 18 [pid 5953] <... bpf resumed>) = 6 [pid 5952] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5951] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5954] perf_event_open( [pid 5953] perf_event_open( [pid 5954] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5952] <... bpf resumed>) = 4 [pid 5950] <... close resumed>) = 0 [pid 5951] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5954] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5953] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5952] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5954] <... bpf resumed>) = 4 [pid 5953] close(3 [pid 5951] <... bpf resumed>) = 4 [pid 5950] close(7 [pid 5954] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5953] <... close resumed>) = 0 [pid 5951] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5950] <... close resumed>) = 0 [pid 5954] <... bpf resumed>) = 5 [pid 5953] close(4 [pid 5952] <... bpf resumed>) = 5 [pid 5952] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5950] close(8) = -1 EBADF (Bad file descriptor) [pid 5950] close(9) = -1 EBADF (Bad file descriptor) [pid 5950] close(10 [pid 5952] <... bpf resumed>) = 6 [pid 5950] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5950] close(11) = -1 EBADF (Bad file descriptor) [pid 5954] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5953] <... close resumed>) = 0 [pid 5952] perf_event_open( [pid 5951] <... bpf resumed>) = 5 [pid 5950] close(12 [pid 5953] close(5 [pid 5951] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5950] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5954] <... bpf resumed>) = 6 [pid 5951] <... bpf resumed>) = 6 [pid 5950] close(13 [pid 5951] perf_event_open( [pid 5950] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5952] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5951] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5954] perf_event_open( [pid 5953] <... close resumed>) = 0 [pid 5952] close(3 [pid 5951] close(3 [pid 5950] close(14 [pid 5953] close(6 [pid 5951] <... close resumed>) = 0 [pid 5950] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5950] close(15) = -1 EBADF (Bad file descriptor) [pid 5950] close(16) = -1 EBADF (Bad file descriptor) [pid 5954] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5952] <... close resumed>) = 0 [pid 5950] close(17) = -1 EBADF (Bad file descriptor) [pid 5951] close(4 [pid 5950] close(18 [pid 5954] close(3 [pid 5953] <... close resumed>) = 0 [pid 5951] <... close resumed>) = 0 [pid 5950] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5951] close(5 [pid 5950] close(19 [pid 5951] <... close resumed>) = 0 [pid 5950] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5950] close(20 [pid 5951] close(6 [pid 5950] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5953] close(7 [pid 5952] close(4 [pid 5951] <... close resumed>) = 0 [pid 5950] close(21 [pid 5953] <... close resumed>) = 0 [pid 5951] close(7 [pid 5950] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5953] close(8 [pid 5952] <... close resumed>) = 0 [pid 5951] <... close resumed>) = 0 [pid 5950] close(22 [pid 5953] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5952] close(5 [pid 5951] close(8 [pid 5950] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5953] close(9 [pid 5951] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5950] close(23 [pid 5952] <... close resumed>) = 0 [pid 5951] close(9 [pid 5953] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5950] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5952] close(6 [pid 5951] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5950] close(24 [pid 5953] close(10 [pid 5951] close(10 [pid 5953] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5951] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5950] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5953] close(11 [pid 5951] close(11 [pid 5950] close(25 [pid 5953] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5951] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5953] close(12 [pid 5951] close(12 [pid 5950] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5953] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5951] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5950] close(26 [pid 5953] close(13 [pid 5951] close(13 [pid 5950] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5953] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5951] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5950] close(27 [pid 5953] close(14 [pid 5951] close(14 [pid 5950] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5953] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5951] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5950] close(28 [pid 5953] close(15 [pid 5951] close(15 [pid 5950] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5953] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5951] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5950] close(29 [pid 5953] close(16 [pid 5951] close(16 [pid 5950] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5953] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5951] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5950] exit_group(0 [pid 5953] close(17) = -1 EBADF (Bad file descriptor) [pid 5951] close(17 [pid 5953] close(18 [pid 5951] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5950] <... exit_group resumed>) = ? [pid 5953] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5951] close(18 [pid 5950] +++ exited with 0 +++ [pid 5953] close(19) = -1 EBADF (Bad file descriptor) [pid 5953] close(20 [pid 5952] <... close resumed>) = 0 [pid 5952] close(7 [pid 5951] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5953] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5952] <... close resumed>) = 0 [pid 5951] close(19 [pid 5952] close(8) = -1 EBADF (Bad file descriptor) [pid 5953] close(21 [pid 5952] close(9 [pid 5953] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5952] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5951] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5953] close(22 [pid 5951] close(20 [pid 5953] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5951] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5953] close(23 [pid 5952] close(10 [pid 5951] close(21 [pid 5953] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5952] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5951] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5953] close(24 [pid 5952] close(11 [pid 5951] close(22 [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5953] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5952] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5951] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5953] close(25 [pid 5952] close(12 [pid 5951] close(23 [pid 5953] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5952] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5951] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5953] close(26 [pid 5952] close(13 [pid 5951] close(24 [pid 5953] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5951] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] umount2("./12", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5953] close(27 [pid 5952] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5951] close(25 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5953] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5952] close(14 [pid 5951] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5952] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5951] close(26 [pid 5953] close(28 [pid 5952] close(15 [pid 5953] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5951] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5953] close(29 [pid 5952] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5951] close(27 [pid 5953] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5952] close(16 [pid 5951] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5953] exit_group(0 [pid 5952] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5951] close(28 [pid 5873] <... openat resumed>) = 3 [pid 5953] <... exit_group resumed>) = ? [pid 5952] close(17 [pid 5951] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] newfstatat(3, "", [pid 5952] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5873] getdents64(3, 0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5873] umount2("./12/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5873] newfstatat(AT_FDCWD, "./12/binderfs", [pid 5952] close(18 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] unlink("./12/binderfs" [pid 5954] <... close resumed>) = 0 [pid 5952] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5951] close(29 [pid 5873] <... unlink resumed>) = 0 [pid 5952] close(19 [pid 5951] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5952] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] umount2("./12/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5954] close(4 [pid 5953] +++ exited with 0 +++ [pid 5952] close(20 [pid 5951] exit_group(0 [pid 5952] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5951] <... exit_group resumed>) = ? [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] newfstatat(AT_FDCWD, "./12/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] unlink("./12/cgroup.net") = 0 [pid 5873] umount2("./12/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5954] <... close resumed>) = 0 [pid 5952] close(21 [pid 5951] +++ exited with 0 +++ [pid 5954] close(5 [pid 5952] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5954] <... close resumed>) = 0 [pid 5952] close(22 [pid 5876] umount2("./13", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] newfstatat(AT_FDCWD, "./12/cgroup.cpu", [pid 5954] close(6 [pid 5952] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5954] <... close resumed>) = 0 [pid 5952] close(23 [pid 5876] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5873] unlink("./12/cgroup.cpu" [pid 5952] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... openat resumed>) = 3 [pid 5954] close(7 [pid 5952] close(24 [pid 5876] newfstatat(3, "", [pid 5952] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5873] <... unlink resumed>) = 0 [pid 5954] <... close resumed>) = 0 [pid 5952] close(25 [pid 5876] getdents64(3, [pid 5954] close(8 [pid 5952] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5873] umount2("./12/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5954] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5952] close(26 [pid 5876] umount2("./13/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5954] close(9 [pid 5952] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] newfstatat(AT_FDCWD, "./12/cgroup", [pid 5954] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5952] close(27 [pid 5876] newfstatat(AT_FDCWD, "./13/binderfs", [pid 5954] close(10 [pid 5952] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5954] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5954] close(11 [pid 5952] close(28 [pid 5876] unlink("./13/binderfs" [pid 5873] unlink("./12/cgroup" [pid 5954] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5952] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5954] close(12 [pid 5952] close(29 [pid 5876] <... unlink resumed>) = 0 [pid 5873] <... unlink resumed>) = 0 [pid 5954] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5952] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./12", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] getdents64(3, [pid 5954] close(13 [pid 5876] umount2("./13/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5954] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5952] exit_group(0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5954] close(14 [pid 5952] <... exit_group resumed>) = ? [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5873] close(3 [pid 5954] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5954] close(15 [pid 5874] <... openat resumed>) = 3 [pid 5873] <... close resumed>) = 0 [pid 5954] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] newfstatat(3, "", [pid 5873] rmdir("./12" [pid 5954] close(16 [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5873] <... rmdir resumed>) = 0 [pid 5954] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] getdents64(3, [pid 5873] mkdir("./13", 0777 [pid 5954] close(17 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5954] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./12/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5954] close(18 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5954] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] newfstatat(AT_FDCWD, "./12/binderfs", [pid 5954] close(19 [pid 5876] newfstatat(AT_FDCWD, "./13/cgroup.net", [pid 5873] <... mkdir resumed>) = 0 [pid 5954] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5954] close(20 [pid 5952] +++ exited with 0 +++ [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 5955 attached [pid 5954] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] unlink("./13/cgroup.net" [pid 5874] unlink("./12/binderfs" [pid 5955] set_robust_list(0x5555947fb660, 24 [pid 5954] close(21 [pid 5876] <... unlink resumed>) = 0 [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5955] <... set_robust_list resumed>) = 0 [pid 5954] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./13/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] restart_syscall(<... resuming interrupted clone ...> [pid 5874] <... unlink resumed>) = 0 [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 15 [pid 5954] close(22 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5954] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(AT_FDCWD, "./13/cgroup.cpu", [pid 5874] umount2("./12/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5954] close(23 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] <... restart_syscall resumed>) = 0 [pid 5955] chdir("./13" [pid 5954] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] unlink("./13/cgroup.cpu" [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5955] <... chdir resumed>) = 0 [pid 5954] close(24 [pid 5876] <... unlink resumed>) = 0 [pid 5874] newfstatat(AT_FDCWD, "./12/cgroup.net", [pid 5955] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5954] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./13/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] umount2("./13", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5955] <... prctl resumed>) = 0 [pid 5954] close(25 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5955] setpgid(0, 0 [pid 5954] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(AT_FDCWD, "./13/cgroup", [pid 5875] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5874] unlink("./12/cgroup.net" [pid 5954] close(26 [pid 5955] <... setpgid resumed>) = 0 [pid 5954] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... unlink resumed>) = 0 [pid 5955] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] <... openat resumed>) = 3 [pid 5876] unlink("./13/cgroup" [pid 5955] <... symlink resumed>) = 0 [pid 5954] close(27 [pid 5875] newfstatat(3, "", [pid 5874] umount2("./12/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5955] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5954] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5955] <... symlink resumed>) = 0 [pid 5876] getdents64(3, [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5955] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5954] close(28 [pid 5876] close(3 [pid 5875] getdents64(3, [pid 5874] newfstatat(AT_FDCWD, "./12/cgroup.cpu", [pid 5955] <... symlink resumed>) = 0 [pid 5954] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... close resumed>) = 0 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5955] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5954] close(29 [pid 5874] unlink("./12/cgroup.cpu" [pid 5954] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] rmdir("./13" [pid 5874] <... unlink resumed>) = 0 [pid 5954] exit_group(0 [pid 5875] umount2("./13/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5955] <... openat resumed>) = 3 [pid 5954] <... exit_group resumed>) = ? [pid 5876] <... rmdir resumed>) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] umount2("./12/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] mkdir("./14", 0777 [pid 5875] newfstatat(AT_FDCWD, "./13/binderfs", [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5955] write(3, "1000", 4 [pid 5954] +++ exited with 0 +++ [pid 5876] <... mkdir resumed>) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5955] <... write resumed>) = 4 [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5875] unlink("./13/binderfs" [pid 5874] newfstatat(AT_FDCWD, "./12/cgroup", [pid 5955] close(3 [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5875] <... unlink resumed>) = 0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5955] <... close resumed>) = 0 [pid 5877] restart_syscall(<... resuming interrupted clone ...> [pid 5875] umount2("./13/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] unlink("./12/cgroup" [pid 5955] read(200, [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] <... unlink resumed>) = 0 [pid 5955] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) executing program [pid 5955] symlink("/dev/binderfs", "./binderfs" [pid 5875] newfstatat(AT_FDCWD, "./13/cgroup.net", [pid 5874] getdents64(3, ./strace-static-x86_64: Process 5956 attached [pid 5955] <... symlink resumed>) = 0 [pid 5955] write(1, "executing program\n", 18 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5956] set_robust_list(0x5555947fb660, 24 [pid 5955] <... write resumed>) = 18 [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 16 [pid 5874] close(3 [pid 5956] <... set_robust_list resumed>) = 0 [pid 5955] perf_event_open( [pid 5875] unlink("./13/cgroup.net" [pid 5874] <... close resumed>) = 0 [pid 5875] <... unlink resumed>) = 0 [pid 5874] rmdir("./12" [pid 5956] chdir("./14" [pid 5955] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5875] umount2("./13/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... rmdir resumed>) = 0 [pid 5955] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5956] <... chdir resumed>) = 0 [pid 5877] <... restart_syscall resumed>) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] mkdir("./13", 0777 [pid 5956] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5955] <... bpf resumed>) = 4 [pid 5875] newfstatat(AT_FDCWD, "./13/cgroup.cpu", [pid 5874] <... mkdir resumed>) = 0 [pid 5956] <... prctl resumed>) = 0 [pid 5955] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5956] setpgid(0, 0 [pid 5877] umount2("./13", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5877] newfstatat(3, "", [pid 5955] <... bpf resumed>) = 5 [pid 5875] unlink("./13/cgroup.cpu" [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5877] getdents64(3, 0x5555947fc6f0 /* 6 entries */, 32768) = 176 ./strace-static-x86_64: Process 5957 attached [pid 5956] <... setpgid resumed>) = 0 [pid 5955] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5877] umount2("./13/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... unlink resumed>) = 0 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] newfstatat(AT_FDCWD, "./13/binderfs", [pid 5956] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] umount2("./13/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5955] <... bpf resumed>) = 6 [pid 5877] unlink("./13/binderfs" [pid 5957] set_robust_list(0x5555947fb660, 24 [pid 5956] <... symlink resumed>) = 0 [pid 5955] perf_event_open( [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 15 [pid 5957] <... set_robust_list resumed>) = 0 [pid 5956] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5955] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5877] <... unlink resumed>) = 0 [pid 5875] newfstatat(AT_FDCWD, "./13/cgroup", [pid 5957] chdir("./13" [pid 5956] <... symlink resumed>) = 0 [pid 5957] <... chdir resumed>) = 0 [pid 5956] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5955] close(3 [pid 5877] umount2("./13/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5957] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] unlink("./13/cgroup" [pid 5957] <... prctl resumed>) = 0 [pid 5956] <... symlink resumed>) = 0 [pid 5877] newfstatat(AT_FDCWD, "./13/cgroup.net", [pid 5875] <... unlink resumed>) = 0 [pid 5957] setpgid(0, 0 [pid 5956] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5875] getdents64(3, [pid 5957] <... setpgid resumed>) = 0 [pid 5957] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5957] <... symlink resumed>) = 0 [pid 5956] <... openat resumed>) = 3 [pid 5877] unlink("./13/cgroup.net" [pid 5875] close(3 [pid 5957] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5956] write(3, "1000", 4 [pid 5875] <... close resumed>) = 0 [pid 5957] <... symlink resumed>) = 0 [pid 5877] <... unlink resumed>) = 0 [pid 5956] <... write resumed>) = 4 [pid 5877] umount2("./13/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] rmdir("./13" [pid 5957] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5956] close(3 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... rmdir resumed>) = 0 [pid 5877] newfstatat(AT_FDCWD, "./13/cgroup.cpu", [pid 5957] <... symlink resumed>) = 0 [pid 5956] <... close resumed>) = 0 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] mkdir("./14", 0777 [pid 5957] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5956] read(200, [pid 5877] unlink("./13/cgroup.cpu" [pid 5956] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5877] <... unlink resumed>) = 0 [pid 5875] <... mkdir resumed>) = 0 [pid 5956] symlink("/dev/binderfs", "./binderfs" [pid 5877] umount2("./13/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5877] newfstatat(AT_FDCWD, "./13/cgroup", [pid 5957] <... openat resumed>) = 3 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5957] write(3, "1000", 4 [pid 5956] <... symlink resumed>) = 0 [pid 5877] unlink("./13/cgroup") = 0 [pid 5877] getdents64(3, 0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5877] close(3) = 0 [pid 5877] rmdir("./13"./strace-static-x86_64: Process 5958 attached [pid 5957] <... write resumed>) = 4 executing program [pid 5956] write(1, "executing program\n", 18 [pid 5955] <... close resumed>) = 0 [pid 5877] <... rmdir resumed>) = 0 [pid 5958] set_robust_list(0x5555947fb660, 24 [pid 5957] close(3 [pid 5956] <... write resumed>) = 18 [pid 5877] mkdir("./14", 0777 [pid 5958] <... set_robust_list resumed>) = 0 [pid 5957] <... close resumed>) = 0 [pid 5956] perf_event_open( [pid 5955] close(4 [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 16 [pid 5958] chdir("./14" [pid 5957] read(200, [pid 5956] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5877] <... mkdir resumed>) = 0 [pid 5958] <... chdir resumed>) = 0 [pid 5957] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5956] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5958] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5957] symlink("/dev/binderfs", "./binderfs" [pid 5955] <... close resumed>) = 0 [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5958] <... prctl resumed>) = 0 [pid 5957] <... symlink resumed>) = 0 [pid 5956] <... bpf resumed>) = 4 [pid 5958] setpgid(0, 0executing program ) = 0 [pid 5955] close(5 [pid 5958] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5957] write(1, "executing program\n", 18 [pid 5956] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148./strace-static-x86_64: Process 5959 attached [pid 5958] <... symlink resumed>) = 0 [pid 5957] <... write resumed>) = 18 [pid 5955] <... close resumed>) = 0 [pid 5959] set_robust_list(0x5555947fb660, 24 [pid 5957] perf_event_open( [pid 5955] close(6 [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 16 [pid 5959] <... set_robust_list resumed>) = 0 [pid 5958] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5957] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5956] <... bpf resumed>) = 5 [pid 5955] <... close resumed>) = 0 [pid 5959] chdir("./14" [pid 5958] <... symlink resumed>) = 0 [pid 5957] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5956] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5959] <... chdir resumed>) = 0 [pid 5958] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5957] <... bpf resumed>) = 4 [pid 5955] close(7 [pid 5959] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5958] <... symlink resumed>) = 0 [pid 5959] <... prctl resumed>) = 0 [pid 5955] <... close resumed>) = 0 [pid 5959] setpgid(0, 0 [pid 5958] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5957] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5956] <... bpf resumed>) = 6 [pid 5955] close(8 [pid 5959] <... setpgid resumed>) = 0 [pid 5958] <... openat resumed>) = 3 [pid 5959] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5957] <... bpf resumed>) = 5 [pid 5956] perf_event_open( [pid 5958] write(3, "1000", 4 [pid 5955] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5959] <... symlink resumed>) = 0 [pid 5958] <... write resumed>) = 4 [pid 5956] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5955] close(9 [pid 5959] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5958] close(3 [pid 5957] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5956] close(3 [pid 5955] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5959] <... symlink resumed>) = 0 [pid 5958] <... close resumed>) = 0 [pid 5956] <... close resumed>) = 0 [pid 5955] close(10 [pid 5959] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5958] read(200, [pid 5957] <... bpf resumed>) = 6 [pid 5956] close(4 [pid 5955] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5959] <... symlink resumed>) = 0 [pid 5958] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5957] perf_event_open( [pid 5956] <... close resumed>) = 0 [pid 5955] close(11 [pid 5959] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5958] symlink("/dev/binderfs", "./binderfs" [pid 5957] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5955] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5958] <... symlink resumed>) = 0 [pid 5957] close(3 [pid 5956] close(5 [pid 5955] close(12 [pid 5959] <... openat resumed>) = 3 [pid 5958] write(1, "executing program\n", 18executing program [pid 5956] <... close resumed>) = 0 [pid 5955] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5959] write(3, "1000", 4 [pid 5958] <... write resumed>) = 18 [pid 5955] close(13 [pid 5959] <... write resumed>) = 4 [pid 5956] close(6 [pid 5955] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5959] close(3 [pid 5958] perf_event_open( [pid 5955] close(14 [pid 5959] <... close resumed>) = 0 [pid 5955] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5959] read(200, [pid 5955] close(15 [pid 5959] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5955] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5959] symlink("/dev/binderfs", "./binderfs" [pid 5955] close(16 [pid 5959] <... symlink resumed>) = 0 [pid 5956] <... close resumed>) = 0 [pid 5955] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5959] write(1, "executing program\n", 18 [pid 5955] close(17) = -1 EBADF (Bad file descriptor) executing program [pid 5959] <... write resumed>) = 18 [pid 5955] close(18 [pid 5959] perf_event_open( [pid 5956] close(7 [pid 5955] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5955] close(19 [pid 5956] <... close resumed>) = 0 [pid 5955] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5955] close(20) = -1 EBADF (Bad file descriptor) [pid 5955] close(21) = -1 EBADF (Bad file descriptor) [pid 5955] close(22 [pid 5956] close(8 [pid 5955] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5956] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5956] close(9 [pid 5955] close(23 [pid 5956] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5955] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5956] close(10 [pid 5955] close(24 [pid 5956] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5955] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5956] close(11 [pid 5955] close(25 [pid 5956] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5956] close(12 [pid 5955] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5956] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5956] close(13) = -1 EBADF (Bad file descriptor) [pid 5956] close(14) = -1 EBADF (Bad file descriptor) [pid 5956] close(15) = -1 EBADF (Bad file descriptor) [pid 5956] close(16) = -1 EBADF (Bad file descriptor) [pid 5956] close(17) = -1 EBADF (Bad file descriptor) [pid 5956] close(18) = -1 EBADF (Bad file descriptor) [pid 5956] close(19) = -1 EBADF (Bad file descriptor) [pid 5956] close(20) = -1 EBADF (Bad file descriptor) [pid 5956] close(21 [pid 5955] close(26 [pid 5956] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5955] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5956] close(22 [pid 5955] close(27 [pid 5956] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5955] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5956] close(23 [pid 5955] close(28 [pid 5956] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5956] close(24 [pid 5955] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5956] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5956] close(25) = -1 EBADF (Bad file descriptor) [pid 5955] close(29 [pid 5956] close(26 [pid 5955] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5956] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5956] close(27) = -1 EBADF (Bad file descriptor) [pid 5955] exit_group(0 [pid 5956] close(28 [pid 5955] <... exit_group resumed>) = ? [pid 5956] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5956] close(29) = -1 EBADF (Bad file descriptor) [pid 5956] exit_group(0) = ? [pid 5955] +++ exited with 0 +++ [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5873] restart_syscall(<... resuming interrupted clone ...> [pid 5956] +++ exited with 0 +++ [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=16, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5876] restart_syscall(<... resuming interrupted clone ...> [pid 5959] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5958] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5957] <... close resumed>) = 0 [pid 5876] <... restart_syscall resumed>) = 0 [pid 5873] <... restart_syscall resumed>) = 0 [pid 5959] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5958] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80) = 4 [pid 5957] close(4 [pid 5959] <... bpf resumed>) = 4 [pid 5958] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5959] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5957] <... close resumed>) = 0 [pid 5958] <... bpf resumed>) = 5 [pid 5876] umount2("./14", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5958] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5957] close(5 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5958] <... bpf resumed>) = 6 [pid 5876] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5873] umount2("./13", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5957] <... close resumed>) = 0 [pid 5876] <... openat resumed>) = 3 [pid 5958] perf_event_open( [pid 5876] newfstatat(3, "", [pid 5957] close(6 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5958] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5958] close(3 [pid 5876] getdents64(3, [pid 5958] <... close resumed>) = 0 [pid 5873] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5876] umount2("./14/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5959] <... bpf resumed>) = 5 [pid 5958] close(4 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5958] <... close resumed>) = 0 [pid 5876] newfstatat(AT_FDCWD, "./14/binderfs", [pid 5958] close(5 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... openat resumed>) = 3 [pid 5958] <... close resumed>) = 0 [pid 5957] <... close resumed>) = 0 [pid 5876] unlink("./14/binderfs" [pid 5958] close(6 [pid 5873] newfstatat(3, "", [pid 5959] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5957] close(7 [pid 5876] <... unlink resumed>) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5959] <... bpf resumed>) = 6 [pid 5958] <... close resumed>) = 0 [pid 5876] umount2("./14/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] getdents64(3, [pid 5959] perf_event_open( [pid 5958] close(7 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5959] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5876] newfstatat(AT_FDCWD, "./14/cgroup.net", [pid 5957] <... close resumed>) = 0 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5958] <... close resumed>) = 0 [pid 5957] close(8 [pid 5959] close(3 [pid 5876] unlink("./14/cgroup.net" [pid 5873] umount2("./13/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5958] close(8 [pid 5957] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 5957] close(9 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5957] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] newfstatat(AT_FDCWD, "./13/binderfs", [pid 5957] close(10) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./14/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5958] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5957] close(11 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5958] close(9 [pid 5876] newfstatat(AT_FDCWD, "./14/cgroup.cpu", [pid 5958] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5958] close(10 [pid 5957] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] unlink("./13/binderfs" [pid 5958] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] unlink("./14/cgroup.cpu" [pid 5958] close(11 [pid 5957] close(12 [pid 5876] <... unlink resumed>) = 0 [pid 5958] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./14/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5958] close(12) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5958] close(13) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(AT_FDCWD, "./14/cgroup", [pid 5958] close(14 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... unlink resumed>) = 0 [pid 5958] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5957] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5958] close(15 [pid 5876] unlink("./14/cgroup" [pid 5958] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 5958] close(16) = -1 EBADF (Bad file descriptor) [pid 5958] close(17 [pid 5876] getdents64(3, [pid 5958] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5958] close(18) = -1 EBADF (Bad file descriptor) [pid 5876] close(3 [pid 5958] close(19 [pid 5876] <... close resumed>) = 0 [pid 5958] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] rmdir("./14" [pid 5958] close(20 [pid 5876] <... rmdir resumed>) = 0 [pid 5958] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5958] close(21) = -1 EBADF (Bad file descriptor) [pid 5876] mkdir("./15", 0777 [pid 5958] close(22 [pid 5876] <... mkdir resumed>) = 0 [pid 5873] umount2("./13/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5958] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5958] close(23 [pid 5957] close(13 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5960 attached [pid 5958] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5957] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] newfstatat(AT_FDCWD, "./13/cgroup.net", [pid 5960] set_robust_list(0x5555947fb660, 24 [pid 5958] close(24 [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 17 [pid 5960] <... set_robust_list resumed>) = 0 [pid 5958] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5957] close(14 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5960] chdir("./15" [pid 5957] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5960] <... chdir resumed>) = 0 [pid 5958] close(25 [pid 5873] unlink("./13/cgroup.net" [pid 5960] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5958] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5957] close(15 [pid 5960] <... prctl resumed>) = 0 [pid 5958] close(26 [pid 5960] setpgid(0, 0 [pid 5958] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5960] <... setpgid resumed>) = 0 [pid 5958] close(27 [pid 5957] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... unlink resumed>) = 0 [pid 5960] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5958] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5957] close(16 [pid 5873] umount2("./13/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5958] close(28 [pid 5960] <... symlink resumed>) = 0 [pid 5957] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5957] close(17 [pid 5873] newfstatat(AT_FDCWD, "./13/cgroup.cpu", [pid 5957] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5960] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5958] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5957] close(18 [pid 5873] unlink("./13/cgroup.cpu" [pid 5960] <... symlink resumed>) = 0 [pid 5958] close(29 [pid 5957] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5960] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5958] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5957] close(19 [pid 5960] <... symlink resumed>) = 0 [pid 5958] exit_group(0 [pid 5957] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... unlink resumed>) = 0 [pid 5957] close(20 [pid 5873] umount2("./13/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5957] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5960] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5958] <... exit_group resumed>) = ? [pid 5957] close(21 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5960] <... openat resumed>) = 3 [pid 5957] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5960] write(3, "1000", 4 [pid 5873] newfstatat(AT_FDCWD, "./13/cgroup", [pid 5957] close(22) = -1 EBADF (Bad file descriptor) [pid 5957] close(23 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5960] <... write resumed>) = 4 [pid 5957] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5957] close(24 [pid 5960] close(3 [pid 5873] unlink("./13/cgroup" [pid 5960] <... close resumed>) = 0 [pid 5957] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5957] close(25 [pid 5873] <... unlink resumed>) = 0 [pid 5960] read(200, [pid 5957] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5960] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5958] +++ exited with 0 +++ [pid 5957] close(26 [pid 5873] getdents64(3, [pid 5960] symlink("/dev/binderfs", "./binderfs" [pid 5957] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=16, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5957] close(27) = -1 EBADF (Bad file descriptor) [pid 5873] close(3 [pid 5957] close(28) = -1 EBADF (Bad file descriptor) [pid 5873] <... close resumed>) = 0 [pid 5960] <... symlink resumed>) = 0 [pid 5957] close(29 [pid 5873] rmdir("./13" [pid 5960] write(1, "executing program\n", 18 [pid 5957] <... close resumed>) = -1 EBADF (Bad file descriptor) executing program [pid 5960] <... write resumed>) = 18 [pid 5873] <... rmdir resumed>) = 0 [pid 5960] perf_event_open( [pid 5957] exit_group(0 [pid 5873] mkdir("./14", 0777 [pid 5957] <... exit_group resumed>) = ? [pid 5873] <... mkdir resumed>) = 0 [pid 5960] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5959] <... close resumed>) = 0 [pid 5957] +++ exited with 0 +++ [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5960] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5959] close(4 [pid 5875] umount2("./14", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5960] <... bpf resumed>) = 4 [pid 5960] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5959] <... close resumed>) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5875] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5874] umount2("./13", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5961 attached ) = -1 EINVAL (Invalid argument) [pid 5961] set_robust_list(0x5555947fb660, 24 [pid 5959] close(5 [pid 5875] <... openat resumed>) = 3 [pid 5874] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5961] <... set_robust_list resumed>) = 0 [pid 5959] <... close resumed>) = 0 [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 16 [pid 5961] chdir("./14") = 0 [pid 5959] close(6 [pid 5874] <... openat resumed>) = 3 [pid 5961] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5959] <... close resumed>) = 0 [pid 5875] newfstatat(3, "", [pid 5874] newfstatat(3, "", [pid 5961] <... prctl resumed>) = 0 [pid 5959] close(7 [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5961] setpgid(0, 0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5961] <... setpgid resumed>) = 0 [pid 5960] <... bpf resumed>) = 5 [pid 5959] <... close resumed>) = 0 [pid 5875] getdents64(3, [pid 5961] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5874] getdents64(3, [pid 5960] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5874] umount2("./13/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] umount2("./14/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5961] <... symlink resumed>) = 0 [pid 5959] close(8 [pid 5961] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5959] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5961] <... symlink resumed>) = 0 [pid 5959] close(9) = -1 EBADF (Bad file descriptor) [pid 5959] close(10 [pid 5961] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5959] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5961] <... symlink resumed>) = 0 [pid 5960] <... bpf resumed>) = 6 [pid 5959] close(11 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] newfstatat(AT_FDCWD, "./13/binderfs", [pid 5961] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5960] perf_event_open( [pid 5959] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(AT_FDCWD, "./14/binderfs", [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5961] <... openat resumed>) = 3 [pid 5960] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5959] close(12 [pid 5961] write(3, "1000", 4 [pid 5960] close(3 [pid 5959] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] unlink("./13/binderfs" [pid 5961] <... write resumed>) = 4 [pid 5959] close(13 [pid 5875] unlink("./14/binderfs" [pid 5874] <... unlink resumed>) = 0 [pid 5961] close(3 [pid 5959] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5961] <... close resumed>) = 0 [pid 5959] close(14) = -1 EBADF (Bad file descriptor) [pid 5959] close(15) = -1 EBADF (Bad file descriptor) [pid 5959] close(16 [pid 5961] read(200, [pid 5959] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5961] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) executing program [pid 5959] close(17 [pid 5961] symlink("/dev/binderfs", "./binderfs" [pid 5874] umount2("./13/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5961] <... symlink resumed>) = 0 [pid 5959] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5961] write(1, "executing program\n", 18 [pid 5959] close(18 [pid 5961] <... write resumed>) = 18 [pid 5959] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 [pid 5874] newfstatat(AT_FDCWD, "./13/cgroup.net", [pid 5961] perf_event_open( [pid 5959] close(19) = -1 EBADF (Bad file descriptor) [pid 5959] close(20 [pid 5875] umount2("./14/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5959] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5959] close(21) = -1 EBADF (Bad file descriptor) [pid 5959] close(22 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] unlink("./13/cgroup.net" [pid 5959] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(AT_FDCWD, "./14/cgroup.net", [pid 5959] close(23 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] <... unlink resumed>) = 0 [pid 5959] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] unlink("./14/cgroup.net" [pid 5874] umount2("./13/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5959] close(24 [pid 5875] <... unlink resumed>) = 0 [pid 5959] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./14/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5959] close(25) = -1 EBADF (Bad file descriptor) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] newfstatat(AT_FDCWD, "./13/cgroup.cpu", [pid 5959] close(26) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(AT_FDCWD, "./14/cgroup.cpu", [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5959] close(27 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5959] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] unlink("./13/cgroup.cpu" [pid 5959] close(28 [pid 5875] unlink("./14/cgroup.cpu" [pid 5874] <... unlink resumed>) = 0 [pid 5959] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 [pid 5959] close(29 [pid 5874] umount2("./13/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5959] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./14/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5959] exit_group(0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] newfstatat(AT_FDCWD, "./13/cgroup", [pid 5959] <... exit_group resumed>) = ? [pid 5875] newfstatat(AT_FDCWD, "./14/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] unlink("./14/cgroup" [pid 5961] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5960] <... close resumed>) = 0 [pid 5875] <... unlink resumed>) = 0 [pid 5959] +++ exited with 0 +++ [pid 5874] unlink("./13/cgroup" [pid 5961] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5875] getdents64(3, [pid 5874] <... unlink resumed>) = 0 [pid 5961] <... bpf resumed>) = 4 [pid 5960] close(4 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5874] getdents64(3, [pid 5961] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5875] close(3 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5961] <... bpf resumed>) = 5 [pid 5960] <... close resumed>) = 0 [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=16, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5875] <... close resumed>) = 0 [pid 5874] close(3) = 0 [pid 5875] rmdir("./14" [pid 5960] close(5 [pid 5877] umount2("./14", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... rmdir resumed>) = 0 [pid 5875] mkdir("./15", 0777 [pid 5874] rmdir("./13") = 0 [pid 5874] mkdir("./14", 0777 [pid 5875] <... mkdir resumed>) = 0 [pid 5874] <... mkdir resumed>) = 0 [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5961] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5960] <... close resumed>) = 0 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5961] <... bpf resumed>) = 6 [pid 5877] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5963 attached ./strace-static-x86_64: Process 5962 attached [pid 5960] close(6 [pid 5961] perf_event_open( [pid 5877] <... openat resumed>) = 3 [pid 5963] set_robust_list(0x5555947fb660, 24 [pid 5962] set_robust_list(0x5555947fb660, 24 [pid 5961] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5877] newfstatat(3, "", [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 17 [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 16 [pid 5963] <... set_robust_list resumed>) = 0 [pid 5962] <... set_robust_list resumed>) = 0 [pid 5961] close(3 [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5963] chdir("./14" [pid 5962] chdir("./15" [pid 5960] <... close resumed>) = 0 [pid 5963] <... chdir resumed>) = 0 [pid 5962] <... chdir resumed>) = 0 [pid 5960] close(7 [pid 5877] getdents64(3, [pid 5963] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5962] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5963] <... prctl resumed>) = 0 [pid 5962] <... prctl resumed>) = 0 [pid 5960] <... close resumed>) = 0 [pid 5877] umount2("./14/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5963] setpgid(0, 0 [pid 5962] setpgid(0, 0 [pid 5960] close(8 [pid 5963] <... setpgid resumed>) = 0 [pid 5962] <... setpgid resumed>) = 0 [pid 5960] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5963] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5960] close(9 [pid 5962] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5960] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./14/binderfs", [pid 5963] <... symlink resumed>) = 0 [pid 5960] close(10) = -1 EBADF (Bad file descriptor) [pid 5960] close(11 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5960] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5960] close(12 [pid 5963] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5962] <... symlink resumed>) = 0 [pid 5960] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5960] close(13) = -1 EBADF (Bad file descriptor) [pid 5960] close(14 [pid 5962] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5960] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./14/binderfs" [pid 5960] close(15) = -1 EBADF (Bad file descriptor) [pid 5963] <... symlink resumed>) = 0 [pid 5960] close(16) = -1 EBADF (Bad file descriptor) [pid 5960] close(17 [pid 5877] <... unlink resumed>) = 0 [pid 5960] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5960] close(18 [pid 5877] umount2("./14/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5963] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5962] <... symlink resumed>) = 0 [pid 5960] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5960] close(19 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5960] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5960] close(20 [pid 5963] <... symlink resumed>) = 0 [pid 5960] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./14/cgroup.net", [pid 5963] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5962] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5960] close(21) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5960] close(22) = -1 EBADF (Bad file descriptor) [pid 5962] <... symlink resumed>) = 0 [pid 5960] close(23) = -1 EBADF (Bad file descriptor) [pid 5960] close(24) = -1 EBADF (Bad file descriptor) [pid 5963] <... openat resumed>) = 3 [pid 5960] close(25 [pid 5962] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5960] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./14/cgroup.net" [pid 5963] write(3, "1000", 4 [pid 5960] close(26) = -1 EBADF (Bad file descriptor) [pid 5960] close(27 [pid 5877] <... unlink resumed>) = 0 [pid 5963] <... write resumed>) = 4 [pid 5960] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5963] close(3 [pid 5960] close(28 [pid 5877] umount2("./14/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5963] <... close resumed>) = 0 [pid 5960] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5962] <... openat resumed>) = 3 [pid 5960] close(29 [pid 5963] read(200, [pid 5961] <... close resumed>) = 0 [pid 5877] newfstatat(AT_FDCWD, "./14/cgroup.cpu", [pid 5963] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5962] write(3, "1000", 4 [pid 5961] close(4 [pid 5960] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5963] symlink("/dev/binderfs", "./binderfs" [pid 5962] <... write resumed>) = 4 [pid 5961] <... close resumed>) = 0 [pid 5960] exit_group(0 [pid 5877] unlink("./14/cgroup.cpu" [pid 5962] close(3 [pid 5961] close(5 [pid 5960] <... exit_group resumed>) = ? executing program [pid 5963] <... symlink resumed>) = 0 [pid 5961] <... close resumed>) = 0 [pid 5877] <... unlink resumed>) = 0 [pid 5963] write(1, "executing program\n", 18 [pid 5962] <... close resumed>) = 0 [pid 5961] close(6 [pid 5963] <... write resumed>) = 18 [pid 5962] read(200, [pid 5961] <... close resumed>) = 0 [pid 5961] close(7 [pid 5963] perf_event_open( [pid 5962] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5960] +++ exited with 0 +++ [pid 5877] umount2("./14/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5962] symlink("/dev/binderfs", "./binderfs" [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=17, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5963] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5962] <... symlink resumed>) = 0 [pid 5961] <... close resumed>) = 0 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) executing program [pid 5963] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5962] write(1, "executing program\n", 18 [pid 5961] close(8 [pid 5877] newfstatat(AT_FDCWD, "./14/cgroup", [pid 5963] <... bpf resumed>) = 4 [pid 5962] <... write resumed>) = 18 [pid 5961] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5963] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5962] perf_event_open( [pid 5961] close(9 [pid 5877] unlink("./14/cgroup" [pid 5962] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5961] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5963] <... bpf resumed>) = 5 [pid 5962] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5961] close(10 [pid 5877] <... unlink resumed>) = 0 [pid 5876] umount2("./15", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5963] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5963] <... bpf resumed>) = 6 [pid 5962] <... bpf resumed>) = 4 [pid 5961] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] getdents64(3, [pid 5963] perf_event_open( [pid 5961] close(11 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5963] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5962] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5961] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] close(3 [pid 5876] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5963] close(3 [pid 5961] close(12 [pid 5877] <... close resumed>) = 0 [pid 5876] <... openat resumed>) = 3 [pid 5963] <... close resumed>) = 0 [pid 5961] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5961] close(13 [pid 5877] rmdir("./14" [pid 5963] close(4 [pid 5961] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... rmdir resumed>) = 0 [pid 5963] <... close resumed>) = 0 [pid 5962] <... bpf resumed>) = 5 [pid 5961] close(14 [pid 5963] close(5 [pid 5961] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] mkdir("./15", 0777 [pid 5963] <... close resumed>) = 0 [pid 5962] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5961] close(15 [pid 5876] newfstatat(3, "", [pid 5963] close(6 [pid 5962] <... bpf resumed>) = 6 [pid 5961] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... mkdir resumed>) = 0 [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5961] close(16) = -1 EBADF (Bad file descriptor) [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5876] getdents64(3, executing program [pid 5962] perf_event_open( [pid 5961] close(17 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 ./strace-static-x86_64: Process 5964 attached [pid 5963] <... close resumed>) = 0 [pid 5961] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5964] set_robust_list(0x5555947fb660, 24 [pid 5963] close(7 [pid 5961] close(18 [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 17 [pid 5964] <... set_robust_list resumed>) = 0 [pid 5963] <... close resumed>) = 0 [pid 5961] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5964] chdir("./15" [pid 5963] close(8 [pid 5961] close(19 [pid 5876] umount2("./15/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5964] <... chdir resumed>) = 0 [pid 5963] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5961] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5964] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5963] close(9 [pid 5964] <... prctl resumed>) = 0 [pid 5963] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5961] close(20 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5961] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5964] setpgid(0, 0 [pid 5963] close(10 [pid 5961] close(21 [pid 5876] newfstatat(AT_FDCWD, "./15/binderfs", [pid 5964] <... setpgid resumed>) = 0 [pid 5963] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5962] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5961] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5964] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5963] close(11 [pid 5961] close(22 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5964] <... symlink resumed>) = 0 [pid 5962] close(3 [pid 5961] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] unlink("./15/binderfs" [pid 5961] close(23 [pid 5964] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5963] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5961] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5964] <... symlink resumed>) = 0 [pid 5963] close(12 [pid 5961] close(24 [pid 5876] <... unlink resumed>) = 0 [pid 5964] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5963] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5964] <... symlink resumed>) = 0 [pid 5961] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5963] close(13) = -1 EBADF (Bad file descriptor) [pid 5963] close(14 [pid 5964] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5963] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5964] <... openat resumed>) = 3 [pid 5961] close(25 [pid 5876] umount2("./15/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5963] close(15) = -1 EBADF (Bad file descriptor) [pid 5963] close(16 [pid 5964] write(3, "1000", 4 [pid 5963] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5964] <... write resumed>) = 4 [pid 5963] close(17 [pid 5964] close(3 [pid 5963] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5964] <... close resumed>) = 0 [pid 5963] close(18 [pid 5964] read(200, [pid 5963] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5964] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5963] close(19 [pid 5964] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5963] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5963] close(20 [pid 5964] write(1, "executing program\n", 18 [pid 5963] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5964] <... write resumed>) = 18 [pid 5963] close(21 [pid 5961] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5964] perf_event_open( [pid 5963] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5961] close(26 [pid 5876] newfstatat(AT_FDCWD, "./15/cgroup.net", [pid 5963] close(22 [pid 5961] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5963] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5961] close(27) = -1 EBADF (Bad file descriptor) [pid 5876] unlink("./15/cgroup.net" [pid 5963] close(23 [pid 5961] close(28 [pid 5963] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5961] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5963] close(24 [pid 5961] close(29 [pid 5876] <... unlink resumed>) = 0 [pid 5963] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5961] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5963] close(25 [pid 5876] umount2("./15/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5963] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5961] exit_group(0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5963] close(26 [pid 5961] <... exit_group resumed>) = ? [pid 5876] newfstatat(AT_FDCWD, "./15/cgroup.cpu", [pid 5963] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5963] close(27 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5963] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5963] close(28) = -1 EBADF (Bad file descriptor) [pid 5963] close(29) = -1 EBADF (Bad file descriptor) [pid 5963] exit_group(0) = ? [pid 5961] +++ exited with 0 +++ [pid 5876] unlink("./15/cgroup.cpu" [pid 5964] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5962] <... close resumed>) = 0 [pid 5876] <... unlink resumed>) = 0 [pid 5876] umount2("./15/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5962] close(4 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=16, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5964] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5963] +++ exited with 0 +++ [pid 5962] <... close resumed>) = 0 [pid 5876] newfstatat(AT_FDCWD, "./15/cgroup", [pid 5964] <... bpf resumed>) = 4 [pid 5873] restart_syscall(<... resuming interrupted clone ...> [pid 5964] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5962] close(5 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5964] <... bpf resumed>) = 5 [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=16, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5873] <... restart_syscall resumed>) = 0 [pid 5964] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5962] <... close resumed>) = 0 [pid 5876] unlink("./15/cgroup" [pid 5874] restart_syscall(<... resuming interrupted clone ...> [pid 5964] <... bpf resumed>) = 6 [pid 5962] close(6 [pid 5876] <... unlink resumed>) = 0 [pid 5874] <... restart_syscall resumed>) = 0 [pid 5964] perf_event_open( [pid 5873] umount2("./14", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5964] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5876] getdents64(3, [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5964] close(3 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5874] umount2("./14", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5962] <... close resumed>) = 0 [pid 5876] close(3 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... openat resumed>) = 3 [pid 5876] <... close resumed>) = 0 [pid 5874] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5873] newfstatat(3, "", [pid 5876] rmdir("./15" [pid 5874] <... openat resumed>) = 3 [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5962] close(7 [pid 5874] newfstatat(3, "", [pid 5873] getdents64(3, [pid 5876] <... rmdir resumed>) = 0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5962] <... close resumed>) = 0 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5962] close(8 [pid 5876] mkdir("./16", 0777 [pid 5874] getdents64(3, [pid 5873] umount2("./14/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] umount2("./14/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] newfstatat(AT_FDCWD, "./14/binderfs", [pid 5962] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... mkdir resumed>) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5962] close(9 [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5962] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5962] close(10 [pid 5874] newfstatat(AT_FDCWD, "./14/binderfs", [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] unlink("./14/binderfs" [pid 5874] unlink("./14/binderfs" [pid 5873] <... unlink resumed>) = 0 [pid 5874] <... unlink resumed>) = 0 [pid 5873] umount2("./14/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5965 attached [pid 5962] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./14/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5965] set_robust_list(0x5555947fb660, 24 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] newfstatat(AT_FDCWD, "./14/cgroup.net", [pid 5965] <... set_robust_list resumed>) = 0 [pid 5874] newfstatat(AT_FDCWD, "./14/cgroup.net", [pid 5962] close(11 [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 18 [pid 5965] chdir("./16" [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5965] <... chdir resumed>) = 0 [pid 5962] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] unlink("./14/cgroup.net" [pid 5965] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5962] close(12 [pid 5873] unlink("./14/cgroup.net" [pid 5962] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5962] close(13) = -1 EBADF (Bad file descriptor) [pid 5962] close(14 [pid 5965] <... prctl resumed>) = 0 [pid 5874] <... unlink resumed>) = 0 [pid 5873] <... unlink resumed>) = 0 [pid 5965] setpgid(0, 0 [pid 5962] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./14/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] umount2("./14/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5965] <... setpgid resumed>) = 0 [pid 5962] close(15 [pid 5965] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5962] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5962] close(16 [pid 5874] newfstatat(AT_FDCWD, "./14/cgroup.cpu", [pid 5962] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5962] close(17 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] newfstatat(AT_FDCWD, "./14/cgroup.cpu", [pid 5965] <... symlink resumed>) = 0 [pid 5962] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] unlink("./14/cgroup.cpu" [pid 5962] close(18 [pid 5874] <... unlink resumed>) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5965] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5962] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./14/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] unlink("./14/cgroup.cpu" [pid 5965] <... symlink resumed>) = 0 [pid 5962] close(19 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5965] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5962] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] newfstatat(AT_FDCWD, "./14/cgroup", [pid 5873] <... unlink resumed>) = 0 [pid 5965] <... symlink resumed>) = 0 [pid 5962] close(20 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5965] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5962] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] unlink("./14/cgroup" [pid 5873] umount2("./14/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5962] close(21 [pid 5874] <... unlink resumed>) = 0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5965] <... openat resumed>) = 3 [pid 5965] write(3, "1000", 4 [pid 5964] <... close resumed>) = 0 [pid 5962] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] getdents64(3, [pid 5873] newfstatat(AT_FDCWD, "./14/cgroup", [pid 5965] <... write resumed>) = 4 [pid 5962] close(22 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5962] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5962] close(23) = -1 EBADF (Bad file descriptor) [pid 5962] close(24) = -1 EBADF (Bad file descriptor) [pid 5964] close(4 [pid 5874] close(3 [pid 5965] close(3 [pid 5873] unlink("./14/cgroup" [pid 5962] close(25 [pid 5874] <... close resumed>) = 0 [pid 5965] <... close resumed>) = 0 [pid 5962] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5962] close(26) = -1 EBADF (Bad file descriptor) [pid 5962] close(27 [pid 5874] rmdir("./14" [pid 5965] read(200, [pid 5873] <... unlink resumed>) = 0 [pid 5965] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5962] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5965] symlink("/dev/binderfs", "./binderfs" [pid 5962] close(28) = -1 EBADF (Bad file descriptor) [pid 5962] close(29) = -1 EBADF (Bad file descriptor) [pid 5965] <... symlink resumed>) = 0 [pid 5964] <... close resumed>) = 0 [pid 5962] exit_group(0 [pid 5965] write(1, "executing program\n", 18 [pid 5874] <... rmdir resumed>) = 0 [pid 5873] getdents64(3, [pid 5962] <... exit_group resumed>) = ? executing program [pid 5965] <... write resumed>) = 18 [pid 5964] close(5 [pid 5874] mkdir("./15", 0777 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5965] perf_event_open( [pid 5964] <... close resumed>) = 0 [pid 5962] +++ exited with 0 +++ [pid 5874] <... mkdir resumed>) = 0 [pid 5873] close(3 [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=17, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5875] restart_syscall(<... resuming interrupted clone ...> [pid 5873] <... close resumed>) = 0 [pid 5965] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5964] close(6 [pid 5875] <... restart_syscall resumed>) = 0 [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5873] rmdir("./14"./strace-static-x86_64: Process 5966 attached [pid 5965] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5964] <... close resumed>) = 0 [pid 5873] <... rmdir resumed>) = 0 [pid 5966] set_robust_list(0x5555947fb660, 24 [pid 5965] <... bpf resumed>) = 4 [pid 5964] close(7 [pid 5875] umount2("./15", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] mkdir("./15", 0777 [pid 5966] <... set_robust_list resumed>) = 0 [pid 5965] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5964] <... close resumed>) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 17 [pid 5873] <... mkdir resumed>) = 0 [pid 5964] close(8 [pid 5875] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5966] chdir("./15" [pid 5964] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... openat resumed>) = 3 [pid 5964] close(9) = -1 EBADF (Bad file descriptor) [pid 5964] close(10) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5964] close(11 [pid 5875] getdents64(3, [pid 5964] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5964] close(12) = -1 EBADF (Bad file descriptor) [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5966] <... chdir resumed>) = 0 ./strace-static-x86_64: Process 5967 attached [pid 5966] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5964] close(13 [pid 5875] umount2("./15/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5967] set_robust_list(0x5555947fb660, 24 [pid 5964] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5967] <... set_robust_list resumed>) = 0 [pid 5964] close(14 [pid 5965] <... bpf resumed>) = 5 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 17 [pid 5967] chdir("./15" [pid 5966] <... prctl resumed>) = 0 [pid 5964] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(AT_FDCWD, "./15/binderfs", [pid 5967] <... chdir resumed>) = 0 [pid 5964] close(15 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5967] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5964] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5967] <... prctl resumed>) = 0 [pid 5964] close(16 [pid 5875] unlink("./15/binderfs" [pid 5967] setpgid(0, 0 [pid 5964] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 [pid 5967] <... setpgid resumed>) = 0 [pid 5964] close(17 [pid 5875] umount2("./15/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5967] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5966] setpgid(0, 0 [pid 5965] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5964] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5966] <... setpgid resumed>) = 0 [pid 5965] <... bpf resumed>) = 6 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5967] <... symlink resumed>) = 0 [pid 5964] close(18 [pid 5967] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5966] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5965] perf_event_open( [pid 5964] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(AT_FDCWD, "./15/cgroup.net", [pid 5967] <... symlink resumed>) = 0 [pid 5964] close(19 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5967] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5965] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5964] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] unlink("./15/cgroup.net" [pid 5967] <... symlink resumed>) = 0 [pid 5966] <... symlink resumed>) = 0 [pid 5875] <... unlink resumed>) = 0 [pid 5967] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5966] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5964] close(20 [pid 5875] umount2("./15/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5967] <... openat resumed>) = 3 [pid 5965] close(3 [pid 5964] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5967] write(3, "1000", 4 [pid 5966] <... symlink resumed>) = 0 [pid 5964] close(21 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5967] <... write resumed>) = 4 [pid 5966] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5964] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(AT_FDCWD, "./15/cgroup.cpu", [pid 5967] close(3 [pid 5966] <... symlink resumed>) = 0 [pid 5964] close(22 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5967] <... close resumed>) = 0 [pid 5966] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5964] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] unlink("./15/cgroup.cpu" [pid 5967] read(200, [pid 5966] <... openat resumed>) = 3 [pid 5967] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5966] write(3, "1000", 4 [pid 5964] close(23 [pid 5875] <... unlink resumed>) = 0 [pid 5967] symlink("/dev/binderfs", "./binderfs" [pid 5966] <... write resumed>) = 4 [pid 5964] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5967] <... symlink resumed>) = 0 [pid 5966] close(3 [pid 5964] close(24executing program [pid 5875] umount2("./15/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5967] write(1, "executing program\n", 18 [pid 5966] <... close resumed>) = 0 [pid 5964] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5967] <... write resumed>) = 18 [pid 5966] read(200, [pid 5964] close(25 [pid 5875] newfstatat(AT_FDCWD, "./15/cgroup", [pid 5967] perf_event_open( [pid 5966] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5964] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5964] close(26 [pid 5966] symlink("/dev/binderfs", "./binderfs" [pid 5964] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5964] close(27 [pid 5875] unlink("./15/cgroup" [pid 5966] <... symlink resumed>) = 0 [pid 5964] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 [pid 5964] close(28 [pid 5875] getdents64(3, [pid 5966] write(1, "executing program\n", 18executing program [pid 5964] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5966] <... write resumed>) = 18 [pid 5964] close(29) = -1 EBADF (Bad file descriptor) [pid 5875] close(3 [pid 5966] perf_event_open( [pid 5964] exit_group(0 [pid 5875] <... close resumed>) = 0 [pid 5964] <... exit_group resumed>) = ? [pid 5875] rmdir("./15") = 0 [pid 5875] mkdir("./16", 0777 [pid 5964] +++ exited with 0 +++ [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=17, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5875] <... mkdir resumed>) = 0 [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5877] umount2("./15", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5877] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5877] newfstatat(3, "", ./strace-static-x86_64: Process 5968 attached [pid 5967] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5966] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5965] <... close resumed>) = 0 [pid 5968] set_robust_list(0x5555947fb660, 24 [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5968] <... set_robust_list resumed>) = 0 [pid 5967] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5877] getdents64(3, [pid 5966] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5965] close(4 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 18 [pid 5968] chdir("./16" [pid 5967] <... bpf resumed>) = 4 [pid 5966] <... bpf resumed>) = 4 [pid 5965] <... close resumed>) = 0 [pid 5968] <... chdir resumed>) = 0 [pid 5967] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5966] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5877] umount2("./15/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5968] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5967] <... bpf resumed>) = 5 [pid 5965] close(5 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5967] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5877] newfstatat(AT_FDCWD, "./15/binderfs", [pid 5967] <... bpf resumed>) = 6 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5968] <... prctl resumed>) = 0 [pid 5967] perf_event_open( [pid 5966] <... bpf resumed>) = 5 [pid 5965] <... close resumed>) = 0 [pid 5877] unlink("./15/binderfs" [pid 5968] setpgid(0, 0 [pid 5967] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5968] <... setpgid resumed>) = 0 [pid 5966] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5965] close(6 [pid 5877] <... unlink resumed>) = 0 [pid 5968] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5967] close(3 [pid 5966] <... bpf resumed>) = 6 [pid 5967] <... close resumed>) = 0 [pid 5877] umount2("./15/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5967] close(4 [pid 5966] perf_event_open( [pid 5965] <... close resumed>) = 0 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5968] <... symlink resumed>) = 0 [pid 5967] <... close resumed>) = 0 [pid 5966] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5877] newfstatat(AT_FDCWD, "./15/cgroup.net", [pid 5968] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5965] close(7 [pid 5968] <... symlink resumed>) = 0 [pid 5967] close(5 [pid 5966] close(3 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5968] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5965] <... close resumed>) = 0 [pid 5968] <... symlink resumed>) = 0 [pid 5965] close(8) = -1 EBADF (Bad file descriptor) [pid 5965] close(9 [pid 5968] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5967] <... close resumed>) = 0 [pid 5965] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./15/cgroup.net" [pid 5967] close(6 [pid 5877] <... unlink resumed>) = 0 [pid 5965] close(10 [pid 5877] umount2("./15/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5965] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5965] close(11 [pid 5968] <... openat resumed>) = 3 [pid 5877] newfstatat(AT_FDCWD, "./15/cgroup.cpu", [pid 5968] write(3, "1000", 4) = 4 [pid 5968] close(3) = 0 [pid 5966] <... close resumed>) = 0 [pid 5968] read(200, [pid 5965] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5968] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5965] close(12 [pid 5968] symlink("/dev/binderfs", "./binderfs" [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5966] close(4 [pid 5965] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5966] <... close resumed>) = 0 [pid 5877] unlink("./15/cgroup.cpu" [pid 5967] <... close resumed>) = 0 executing program [pid 5968] <... symlink resumed>) = 0 [pid 5966] close(5 [pid 5965] close(13 [pid 5877] <... unlink resumed>) = 0 [pid 5968] write(1, "executing program\n", 18 [pid 5967] close(7 [pid 5968] <... write resumed>) = 18 [pid 5968] perf_event_open( [pid 5966] <... close resumed>) = 0 [pid 5965] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./15/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5966] close(6 [pid 5965] close(14 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5965] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./15/cgroup", [pid 5965] close(15 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5967] <... close resumed>) = 0 [pid 5966] <... close resumed>) = 0 [pid 5965] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./15/cgroup" [pid 5968] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5967] close(8 [pid 5966] close(7 [pid 5965] close(16 [pid 5968] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5967] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5966] <... close resumed>) = 0 [pid 5965] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 5967] close(9 [pid 5966] close(8 [pid 5968] <... bpf resumed>) = 4 [pid 5965] close(17 [pid 5967] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5967] close(10 [pid 5968] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5966] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5965] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] getdents64(3, [pid 5967] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5966] close(9 [pid 5965] close(18 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5967] close(11 [pid 5966] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5965] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] close(3 [pid 5967] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5966] close(10 [pid 5965] close(19 [pid 5877] <... close resumed>) = 0 [pid 5966] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5965] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] rmdir("./15" [pid 5967] close(12 [pid 5966] close(11 [pid 5965] close(20 [pid 5877] <... rmdir resumed>) = 0 [pid 5966] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5967] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5965] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] mkdir("./16", 0777 [pid 5967] close(13 [pid 5966] close(12 [pid 5965] close(21 [pid 5877] <... mkdir resumed>) = 0 [pid 5966] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5965] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5967] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5966] close(13 [pid 5965] close(22 [pid 5967] close(14) = -1 EBADF (Bad file descriptor) [pid 5966] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5967] close(15 [pid 5965] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5967] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5969 attached [pid 5967] close(16 [pid 5966] close(14 [pid 5967] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5967] close(17 [pid 5965] close(23 [pid 5967] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5967] close(18 [pid 5966] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5966] close(15 [pid 5965] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5966] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5965] close(24 [pid 5966] close(16 [pid 5965] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5966] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5965] close(25) = -1 EBADF (Bad file descriptor) [pid 5965] close(26) = -1 EBADF (Bad file descriptor) [pid 5966] close(17 [pid 5965] close(27) = -1 EBADF (Bad file descriptor) [pid 5966] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5965] close(28 [pid 5966] close(18 [pid 5965] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5966] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5965] close(29 [pid 5966] close(19 [pid 5965] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5966] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5965] exit_group(0 [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 18 [pid 5968] <... bpf resumed>) = 5 [pid 5969] set_robust_list(0x5555947fb660, 24 [pid 5967] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5966] close(20 [pid 5968] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5965] <... exit_group resumed>) = ? [pid 5969] <... set_robust_list resumed>) = 0 [pid 5968] <... bpf resumed>) = 6 [pid 5967] close(19 [pid 5966] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5969] chdir("./16" [pid 5967] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5966] close(21 [pid 5965] +++ exited with 0 +++ [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=18, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5969] <... chdir resumed>) = 0 [pid 5968] perf_event_open( [pid 5967] close(20 [pid 5966] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5969] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5968] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5967] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5966] close(22 [pid 5969] <... prctl resumed>) = 0 [pid 5967] close(21 [pid 5966] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5966] close(23 [pid 5876] umount2("./16", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5967] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5966] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5969] setpgid(0, 0 [pid 5967] close(22 [pid 5969] <... setpgid resumed>) = 0 [pid 5967] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5967] close(23 [pid 5966] close(24 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5967] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5966] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5968] close(3 [pid 5967] close(24 [pid 5966] close(25 [pid 5876] <... openat resumed>) = 3 [pid 5969] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5967] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5969] <... symlink resumed>) = 0 [pid 5967] close(25 [pid 5966] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(3, "", [pid 5969] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5966] close(26 [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5969] <... symlink resumed>) = 0 [pid 5966] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] getdents64(3, [pid 5966] close(27 [pid 5969] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5966] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5969] <... symlink resumed>) = 0 [pid 5966] close(28) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./16/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5969] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5966] close(29 [pid 5969] <... openat resumed>) = 3 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5966] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(AT_FDCWD, "./16/binderfs", [pid 5967] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5969] write(3, "1000", 4 [pid 5966] exit_group(0 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5967] close(26 [pid 5969] <... write resumed>) = 4 [pid 5966] <... exit_group resumed>) = ? [pid 5967] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5969] close(3 [pid 5967] close(27 [pid 5876] unlink("./16/binderfs" [pid 5969] <... close resumed>) = 0 [pid 5967] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5969] read(200, [pid 5967] close(28 [pid 5876] <... unlink resumed>) = 0 [pid 5969] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5967] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5966] +++ exited with 0 +++ [pid 5969] symlink("/dev/binderfs", "./binderfs" [pid 5967] close(29 [pid 5876] umount2("./16/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5967] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5969] <... symlink resumed>) = 0 [pid 5967] exit_group(0) = ? [pid 5969] write(1, "executing program\n", 18 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=17, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- executing program [pid 5874] restart_syscall(<... resuming interrupted clone ...> [pid 5969] <... write resumed>) = 18 [pid 5874] <... restart_syscall resumed>) = 0 [pid 5969] perf_event_open( [pid 5967] +++ exited with 0 +++ [pid 5876] newfstatat(AT_FDCWD, "./16/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=17, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5874] umount2("./15", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] unlink("./16/cgroup.net" [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5876] <... unlink resumed>) = 0 [pid 5874] <... openat resumed>) = 3 [pid 5874] newfstatat(3, "", [pid 5876] umount2("./16/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5876] newfstatat(AT_FDCWD, "./16/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] getdents64(3, [pid 5876] unlink("./16/cgroup.cpu" [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5873] umount2("./15", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] <... unlink resumed>) = 0 [pid 5874] umount2("./15/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] umount2("./16/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] newfstatat(AT_FDCWD, "./15/binderfs", [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] newfstatat(AT_FDCWD, "./16/cgroup", [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] unlink("./15/binderfs" [pid 5876] unlink("./16/cgroup" [pid 5874] <... unlink resumed>) = 0 [pid 5873] <... openat resumed>) = 3 [pid 5876] <... unlink resumed>) = 0 [pid 5874] umount2("./15/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] getdents64(3, [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] newfstatat(3, "", [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5874] newfstatat(AT_FDCWD, "./15/cgroup.net", [pid 5876] close(3 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5876] <... close resumed>) = 0 [pid 5874] unlink("./15/cgroup.net" [pid 5873] getdents64(3, [pid 5876] rmdir("./16" [pid 5874] <... unlink resumed>) = 0 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5876] <... rmdir resumed>) = 0 [pid 5874] umount2("./15/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] umount2("./15/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] mkdir("./17", 0777 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] <... mkdir resumed>) = 0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5874] newfstatat(AT_FDCWD, "./15/cgroup.cpu", [pid 5873] newfstatat(AT_FDCWD, "./15/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 5970 attached [pid 5874] unlink("./15/cgroup.cpu" [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 19 [pid 5873] unlink("./15/binderfs" [pid 5970] set_robust_list(0x5555947fb660, 24 [pid 5874] <... unlink resumed>) = 0 [pid 5970] <... set_robust_list resumed>) = 0 [pid 5873] <... unlink resumed>) = 0 [pid 5874] umount2("./15/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] umount2("./15/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5970] chdir("./17" [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5970] <... chdir resumed>) = 0 [pid 5874] newfstatat(AT_FDCWD, "./15/cgroup", [pid 5873] newfstatat(AT_FDCWD, "./15/cgroup.net", [pid 5970] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5970] setpgid(0, 0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5970] <... setpgid resumed>) = 0 [pid 5873] unlink("./15/cgroup.net" [pid 5970] symlink("/syzcgroup/unified/syz3", "./cgroup") = 0 [pid 5873] <... unlink resumed>) = 0 [pid 5873] umount2("./15/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5970] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5969] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5968] <... close resumed>) = 0 [pid 5874] unlink("./15/cgroup" [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5970] <... symlink resumed>) = 0 [pid 5969] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5874] <... unlink resumed>) = 0 [pid 5873] newfstatat(AT_FDCWD, "./15/cgroup.cpu", [pid 5970] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5969] <... bpf resumed>) = 4 [pid 5968] close(4 [pid 5874] getdents64(3, [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5970] <... symlink resumed>) = 0 [pid 5969] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5968] <... close resumed>) = 0 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5873] unlink("./15/cgroup.cpu" [pid 5970] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5968] close(5 [pid 5874] close(3 [pid 5970] <... openat resumed>) = 3 [pid 5969] <... bpf resumed>) = 5 [pid 5968] <... close resumed>) = 0 [pid 5874] <... close resumed>) = 0 [pid 5873] <... unlink resumed>) = 0 [pid 5970] write(3, "1000", 4 [pid 5969] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5968] close(6 [pid 5874] rmdir("./15" [pid 5873] umount2("./15/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5970] <... write resumed>) = 4 [pid 5874] <... rmdir resumed>) = 0 [pid 5968] <... close resumed>) = 0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5970] close(3 [pid 5874] mkdir("./16", 0777 [pid 5873] newfstatat(AT_FDCWD, "./15/cgroup", [pid 5970] <... close resumed>) = 0 [pid 5969] <... bpf resumed>) = 6 [pid 5969] perf_event_open( [pid 5874] <... mkdir resumed>) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5968] close(7 [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5873] unlink("./15/cgroup" [pid 5970] read(200, [pid 5968] <... close resumed>) = 0 [pid 5873] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 5971 attached [pid 5970] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5969] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5968] close(8 [pid 5971] set_robust_list(0x5555947fb660, 24 [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 18 [pid 5873] getdents64(3, [pid 5970] symlink("/dev/binderfs", "./binderfs" [pid 5969] close(3 [pid 5968] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5971] <... set_robust_list resumed>) = 0 [pid 5970] <... symlink resumed>) = 0 [pid 5968] close(9 [pid 5873] close(3 [pid 5971] chdir("./16" [pid 5970] write(1, "executing program\n", 18executing program [pid 5968] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... close resumed>) = 0 [pid 5971] <... chdir resumed>) = 0 [pid 5970] <... write resumed>) = 18 [pid 5968] close(10 [pid 5873] rmdir("./15" [pid 5970] perf_event_open( [pid 5968] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... rmdir resumed>) = 0 [pid 5968] close(11 [pid 5873] mkdir("./16", 0777 [pid 5968] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... mkdir resumed>) = 0 [pid 5968] close(12 [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5971] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5968] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5971] <... prctl resumed>) = 0 [pid 5971] setpgid(0, 0 [pid 5968] close(13 [pid 5971] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 5972 attached [pid 5968] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5971] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5968] close(14 [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 18 [pid 5972] set_robust_list(0x5555947fb660, 24 [pid 5968] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5968] close(15) = -1 EBADF (Bad file descriptor) [pid 5972] <... set_robust_list resumed>) = 0 [pid 5971] <... symlink resumed>) = 0 [pid 5968] close(16 [pid 5972] chdir("./16" [pid 5968] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5972] <... chdir resumed>) = 0 [pid 5968] close(17) = -1 EBADF (Bad file descriptor) [pid 5968] close(18) = -1 EBADF (Bad file descriptor) [pid 5968] close(19) = -1 EBADF (Bad file descriptor) [pid 5968] close(20) = -1 EBADF (Bad file descriptor) [pid 5968] close(21) = -1 EBADF (Bad file descriptor) [pid 5968] close(22) = -1 EBADF (Bad file descriptor) [pid 5968] close(23) = -1 EBADF (Bad file descriptor) [pid 5968] close(24) = -1 EBADF (Bad file descriptor) [pid 5968] close(25) = -1 EBADF (Bad file descriptor) [pid 5968] close(26) = -1 EBADF (Bad file descriptor) [pid 5968] close(27) = -1 EBADF (Bad file descriptor) [pid 5968] close(28) = -1 EBADF (Bad file descriptor) [pid 5968] close(29) = -1 EBADF (Bad file descriptor) [pid 5968] exit_group(0) = ? [pid 5972] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5971] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5970] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5969] <... close resumed>) = 0 [pid 5972] <... prctl resumed>) = 0 [pid 5972] setpgid(0, 0 [pid 5971] <... symlink resumed>) = 0 [pid 5970] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5969] close(4 [pid 5972] <... setpgid resumed>) = 0 [pid 5971] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5970] <... bpf resumed>) = 4 [pid 5969] <... close resumed>) = 0 [pid 5968] +++ exited with 0 +++ [pid 5972] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5971] <... symlink resumed>) = 0 [pid 5970] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5969] close(5 [pid 5972] <... symlink resumed>) = 0 [pid 5971] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5969] <... close resumed>) = 0 [pid 5972] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5971] <... openat resumed>) = 3 [pid 5969] close(6 [pid 5972] <... symlink resumed>) = 0 [pid 5971] write(3, "1000", 4 [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=18, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5972] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5971] <... write resumed>) = 4 [pid 5969] <... close resumed>) = 0 [pid 5875] umount2("./16", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5972] <... symlink resumed>) = 0 [pid 5971] close(3 [pid 5970] <... bpf resumed>) = 5 [pid 5969] close(7 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5972] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5971] <... close resumed>) = 0 [pid 5970] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5969] <... close resumed>) = 0 [pid 5875] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5972] <... openat resumed>) = 3 [pid 5969] close(8 [pid 5972] write(3, "1000", 4 [pid 5969] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5972] <... write resumed>) = 4 [pid 5971] read(200, [pid 5969] close(9 [pid 5875] <... openat resumed>) = 3 [pid 5972] close(3 [pid 5971] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5970] <... bpf resumed>) = 6 [pid 5969] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(3, "", [pid 5972] <... close resumed>) = 0 [pid 5971] symlink("/dev/binderfs", "./binderfs" [pid 5970] perf_event_open( [pid 5969] close(10 [pid 5972] read(200, [pid 5971] <... symlink resumed>) = 0 [pid 5970] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5972] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) executing program [pid 5971] write(1, "executing program\n", 18 [pid 5970] close(3 [pid 5969] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] getdents64(3, [pid 5972] symlink("/dev/binderfs", "./binderfs" [pid 5971] <... write resumed>) = 18 [pid 5969] close(11 [pid 5972] <... symlink resumed>) = 0 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5972] write(1, "executing program\n", 18executing program [pid 5971] perf_event_open( [pid 5875] umount2("./16/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5972] <... write resumed>) = 18 [pid 5969] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5972] perf_event_open( [pid 5969] close(12 [pid 5875] newfstatat(AT_FDCWD, "./16/binderfs", [pid 5969] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5969] close(13 [pid 5875] unlink("./16/binderfs" [pid 5969] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 [pid 5875] umount2("./16/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5969] close(14 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5969] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(AT_FDCWD, "./16/cgroup.net", [pid 5969] close(15 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5969] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] unlink("./16/cgroup.net" [pid 5969] close(16 [pid 5875] <... unlink resumed>) = 0 [pid 5969] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5969] close(17 [pid 5875] umount2("./16/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5969] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5969] close(18 [pid 5875] newfstatat(AT_FDCWD, "./16/cgroup.cpu", [pid 5969] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5969] close(19 [pid 5875] unlink("./16/cgroup.cpu" [pid 5969] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 [pid 5969] close(20) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./16/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5969] close(21 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] newfstatat(AT_FDCWD, "./16/cgroup", [pid 5969] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5969] close(22 [pid 5875] unlink("./16/cgroup" [pid 5969] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 [pid 5969] close(23) = -1 EBADF (Bad file descriptor) [pid 5875] getdents64(3, [pid 5971] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5970] <... close resumed>) = 0 [pid 5969] close(24 [pid 5972] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5971] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5970] close(4 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5972] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5971] <... bpf resumed>) = 4 [pid 5969] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] close(3 [pid 5972] <... bpf resumed>) = 4 [pid 5971] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5875] <... close resumed>) = 0 [pid 5972] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5970] <... close resumed>) = 0 [pid 5969] close(25 [pid 5970] close(5 [pid 5875] rmdir("./16" [pid 5969] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5971] <... bpf resumed>) = 5 [pid 5970] <... close resumed>) = 0 [pid 5969] close(26 [pid 5875] <... rmdir resumed>) = 0 [pid 5969] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5970] close(6 [pid 5969] close(27 [pid 5875] mkdir("./17", 0777 [pid 5971] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5972] <... bpf resumed>) = 5 [pid 5970] <... close resumed>) = 0 [pid 5969] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... mkdir resumed>) = 0 [pid 5972] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5970] close(7 [pid 5969] close(28 [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5970] <... close resumed>) = 0 [pid 5972] <... bpf resumed>) = 6 [pid 5971] <... bpf resumed>) = 6 [pid 5972] perf_event_open( [pid 5971] perf_event_open( [pid 5972] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5970] close(8 [pid 5969] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5973 attached [pid 5970] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5969] close(29 [pid 5971] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5973] set_robust_list(0x5555947fb660, 24 [pid 5972] close(3 [pid 5970] close(9 [pid 5969] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 19 [pid 5973] <... set_robust_list resumed>) = 0 [pid 5971] close(3 [pid 5970] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5969] exit_group(0 [pid 5973] chdir("./17" [pid 5970] close(10) = -1 EBADF (Bad file descriptor) [pid 5969] <... exit_group resumed>) = ? [pid 5973] <... chdir resumed>) = 0 [pid 5972] <... close resumed>) = 0 [pid 5970] close(11 [pid 5969] +++ exited with 0 +++ [pid 5972] close(4 [pid 5973] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5973] setpgid(0, 0 [pid 5972] <... close resumed>) = 0 [pid 5970] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5973] <... setpgid resumed>) = 0 [pid 5972] close(5 [pid 5970] close(12 [pid 5973] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5972] <... close resumed>) = 0 [pid 5970] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=18, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5972] close(6 [pid 5970] close(13) = -1 EBADF (Bad file descriptor) [pid 5970] close(14 [pid 5973] <... symlink resumed>) = 0 [pid 5972] <... close resumed>) = 0 [pid 5970] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5970] close(15) = -1 EBADF (Bad file descriptor) [pid 5973] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5970] close(16 [pid 5973] <... symlink resumed>) = 0 [pid 5970] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5970] close(17 [pid 5973] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5970] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5973] <... symlink resumed>) = 0 [pid 5970] close(18) = -1 EBADF (Bad file descriptor) [pid 5973] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5970] close(19 [pid 5972] close(7 [pid 5970] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5973] <... openat resumed>) = 3 [pid 5970] close(20 [pid 5973] write(3, "1000", 4 [pid 5972] <... close resumed>) = 0 [pid 5970] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5973] <... write resumed>) = 4 [pid 5972] close(8 [pid 5970] close(21 [pid 5973] close(3 [pid 5972] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5970] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5973] <... close resumed>) = 0 [pid 5972] close(9 [pid 5970] close(22 [pid 5972] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5973] read(200, [pid 5972] close(10 [pid 5970] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5973] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5972] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5970] close(23 [pid 5973] symlink("/dev/binderfs", "./binderfs" [pid 5970] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5973] <... symlink resumed>) = 0 [pid 5972] close(11) = -1 EBADF (Bad file descriptor) [pid 5972] close(12) = -1 EBADF (Bad file descriptor) executing program [pid 5973] write(1, "executing program\n", 18 [pid 5972] close(13 [pid 5970] close(24 [pid 5973] <... write resumed>) = 18 [pid 5972] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5970] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5973] perf_event_open( [pid 5970] close(25 [pid 5972] close(14 [pid 5971] <... close resumed>) = 0 [pid 5970] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5972] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5970] close(26 [pid 5972] close(15 [pid 5970] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5972] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5970] close(27) = -1 EBADF (Bad file descriptor) [pid 5972] close(16 [pid 5973] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5972] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5970] close(28 [pid 5973] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5972] close(17 [pid 5970] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5971] close(4 [pid 5973] <... bpf resumed>) = 4 [pid 5972] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5970] close(29 [pid 5973] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5972] close(18 [pid 5971] <... close resumed>) = 0 [pid 5971] close(5 [pid 5877] umount2("./16", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5971] <... close resumed>) = 0 [pid 5973] <... bpf resumed>) = 5 [pid 5972] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5970] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5973] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5972] close(19 [pid 5970] exit_group(0 [pid 5972] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5970] <... exit_group resumed>) = ? [pid 5972] close(20 [pid 5971] close(6 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5972] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5973] <... bpf resumed>) = 6 [pid 5972] close(21) = -1 EBADF (Bad file descriptor) [pid 5973] perf_event_open( [pid 5972] close(22) = -1 EBADF (Bad file descriptor) [pid 5970] +++ exited with 0 +++ [pid 5877] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5972] close(23) = -1 EBADF (Bad file descriptor) [pid 5972] close(24 [pid 5973] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5972] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5972] close(25 [pid 5973] close(3 [pid 5972] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5972] close(26) = -1 EBADF (Bad file descriptor) [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5972] close(27) = -1 EBADF (Bad file descriptor) [pid 5972] close(28) = -1 EBADF (Bad file descriptor) [pid 5971] <... close resumed>) = 0 [pid 5972] close(29 [pid 5877] <... openat resumed>) = 3 [pid 5876] umount2("./17", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5972] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5971] close(7 [pid 5877] newfstatat(3, "", [pid 5972] exit_group(0) = ? [pid 5971] <... close resumed>) = 0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5971] close(8 [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5876] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5971] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5971] close(9 [pid 5877] getdents64(3, [pid 5876] <... openat resumed>) = 3 [pid 5972] +++ exited with 0 +++ [pid 5971] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5876] newfstatat(3, "", [pid 5971] close(10 [pid 5877] umount2("./16/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=18, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5971] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5873] restart_syscall(<... resuming interrupted clone ...> [pid 5971] close(11 [pid 5877] newfstatat(AT_FDCWD, "./16/binderfs", [pid 5876] getdents64(3, [pid 5971] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5971] close(12 [pid 5876] umount2("./17/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5876] newfstatat(AT_FDCWD, "./17/binderfs", [pid 5877] unlink("./16/binderfs" [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5971] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] unlink("./17/binderfs" [pid 5971] close(13 [pid 5877] <... unlink resumed>) = 0 [pid 5876] <... unlink resumed>) = 0 [pid 5876] umount2("./17/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5973] <... close resumed>) = 0 [pid 5971] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./16/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... restart_syscall resumed>) = 0 [pid 5973] close(4 [pid 5971] close(14 [pid 5876] newfstatat(AT_FDCWD, "./17/cgroup.net", [pid 5973] <... close resumed>) = 0 [pid 5971] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5971] close(15 [pid 5877] newfstatat(AT_FDCWD, "./16/cgroup.net", [pid 5973] close(5 [pid 5971] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] unlink("./17/cgroup.net" [pid 5973] <... close resumed>) = 0 [pid 5876] <... unlink resumed>) = 0 [pid 5973] close(6 [pid 5876] umount2("./17/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5971] close(16 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] umount2("./16", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5973] <... close resumed>) = 0 [pid 5971] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./16/cgroup.net" [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5973] close(7 [pid 5971] close(17 [pid 5877] <... unlink resumed>) = 0 [pid 5876] newfstatat(AT_FDCWD, "./17/cgroup.cpu", [pid 5873] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5973] <... close resumed>) = 0 [pid 5971] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./16/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... openat resumed>) = 3 [pid 5973] close(8 [pid 5971] close(18 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] unlink("./17/cgroup.cpu" [pid 5873] newfstatat(3, "", [pid 5973] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5971] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./16/cgroup.cpu", [pid 5876] <... unlink resumed>) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5973] close(9 [pid 5971] close(19 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5973] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./17/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5973] close(10) = -1 EBADF (Bad file descriptor) [pid 5971] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./16/cgroup.cpu" [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] getdents64(3, [pid 5971] close(20 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5971] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 5873] umount2("./16/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5973] close(11 [pid 5876] newfstatat(AT_FDCWD, "./17/cgroup", [pid 5973] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5971] close(21 [pid 5877] umount2("./16/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5973] close(12 [pid 5971] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] unlink("./17/cgroup" [pid 5973] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5971] close(22 [pid 5877] newfstatat(AT_FDCWD, "./16/cgroup", [pid 5876] <... unlink resumed>) = 0 [pid 5873] newfstatat(AT_FDCWD, "./16/binderfs", [pid 5973] close(13 [pid 5971] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] getdents64(3, [pid 5973] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5971] close(23 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5973] close(14 [pid 5876] close(3 [pid 5973] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... close resumed>) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5973] close(15 [pid 5971] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./16/cgroup" [pid 5876] rmdir("./17" [pid 5973] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5971] close(24 [pid 5876] <... rmdir resumed>) = 0 [pid 5873] unlink("./16/binderfs" [pid 5973] close(16 [pid 5971] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] mkdir("./18", 0777 [pid 5973] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5971] close(25 [pid 5877] <... unlink resumed>) = 0 [pid 5876] <... mkdir resumed>) = 0 [pid 5873] <... unlink resumed>) = 0 [pid 5971] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] getdents64(3, [pid 5873] umount2("./16/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5971] close(26 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5971] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5971] close(27 [pid 5877] close(3 [pid 5971] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] newfstatat(AT_FDCWD, "./16/cgroup.net", [pid 5971] close(28 [pid 5877] <... close resumed>) = 0 [pid 5973] close(17 [pid 5971] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5973] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] rmdir("./16" [pid 5973] close(18 [pid 5971] close(29 [pid 5877] <... rmdir resumed>) = 0 [pid 5873] unlink("./16/cgroup.net" [pid 5973] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5971] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] mkdir("./17", 0777 [pid 5873] <... unlink resumed>) = 0 [pid 5973] close(19 [pid 5971] exit_group(0 [pid 5877] <... mkdir resumed>) = 0 [pid 5973] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5973] close(20 [pid 5971] <... exit_group resumed>) = ? [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5873] umount2("./16/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5974 attached [pid 5973] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5974] set_robust_list(0x5555947fb660, 24 [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 20 [pid 5974] <... set_robust_list resumed>) = 0 [pid 5973] close(21 [pid 5971] +++ exited with 0 +++ [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5975 attached [pid 5974] chdir("./18" [pid 5973] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=18, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5873] newfstatat(AT_FDCWD, "./16/cgroup.cpu", [pid 5975] set_robust_list(0x5555947fb660, 24 [pid 5974] <... chdir resumed>) = 0 [pid 5973] close(22 [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 19 [pid 5874] restart_syscall(<... resuming interrupted clone ...> [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5975] <... set_robust_list resumed>) = 0 [pid 5974] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5973] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] unlink("./16/cgroup.cpu" [pid 5975] chdir("./17" [pid 5974] <... prctl resumed>) = 0 [pid 5973] close(23 [pid 5873] <... unlink resumed>) = 0 [pid 5975] <... chdir resumed>) = 0 [pid 5973] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] umount2("./16/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5975] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5974] setpgid(0, 0 [pid 5973] close(24 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5975] <... prctl resumed>) = 0 [pid 5973] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] newfstatat(AT_FDCWD, "./16/cgroup", [pid 5975] setpgid(0, 0 [pid 5973] close(25 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5975] <... setpgid resumed>) = 0 [pid 5974] <... setpgid resumed>) = 0 [pid 5973] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5975] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5973] close(26) = -1 EBADF (Bad file descriptor) [pid 5874] <... restart_syscall resumed>) = 0 [pid 5873] unlink("./16/cgroup" [pid 5975] <... symlink resumed>) = 0 [pid 5974] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5973] close(27 [pid 5873] <... unlink resumed>) = 0 [pid 5975] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5973] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] getdents64(3, [pid 5975] <... symlink resumed>) = 0 [pid 5973] close(28) = -1 EBADF (Bad file descriptor) [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5975] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5973] close(29 [pid 5873] close(3 [pid 5975] <... symlink resumed>) = 0 [pid 5974] <... symlink resumed>) = 0 [pid 5973] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5975] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5974] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5973] exit_group(0 [pid 5873] <... close resumed>) = 0 [pid 5975] <... openat resumed>) = 3 [pid 5973] <... exit_group resumed>) = ? [pid 5874] umount2("./16", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5975] write(3, "1000", 4 [pid 5974] <... symlink resumed>) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] rmdir("./16" [pid 5975] <... write resumed>) = 4 [pid 5974] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5973] +++ exited with 0 +++ [pid 5874] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5975] close(3 [pid 5974] <... symlink resumed>) = 0 [pid 5975] <... close resumed>) = 0 [pid 5974] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5874] <... openat resumed>) = 3 [pid 5873] <... rmdir resumed>) = 0 [pid 5875] restart_syscall(<... resuming interrupted clone ...> [pid 5874] newfstatat(3, "", executing program [pid 5975] read(200, [pid 5974] <... openat resumed>) = 3 [pid 5875] <... restart_syscall resumed>) = 0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5873] mkdir("./17", 0777 [pid 5975] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5974] write(3, "1000", 4 [pid 5874] getdents64(3, [pid 5975] symlink("/dev/binderfs", "./binderfs" [pid 5974] <... write resumed>) = 4 [pid 5975] <... symlink resumed>) = 0 [pid 5974] close(3 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5873] <... mkdir resumed>) = 0 [pid 5974] <... close resumed>) = 0 [pid 5875] umount2("./17", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5974] read(200, [pid 5874] umount2("./16/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5975] write(1, "executing program\n", 18 [pid 5974] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5975] <... write resumed>) = 18 [pid 5974] symlink("/dev/binderfs", "./binderfs" [pid 5975] perf_event_open( [pid 5974] <... symlink resumed>) = 0 [pid 5874] newfstatat(AT_FDCWD, "./16/binderfs", [pid 5875] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 5976 attached executing program [pid 5975] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5974] write(1, "executing program\n", 18 [pid 5875] <... openat resumed>) = 3 [pid 5874] unlink("./16/binderfs" [pid 5976] set_robust_list(0x5555947fb660, 24 [pid 5975] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5974] <... write resumed>) = 18 [pid 5875] newfstatat(3, "", [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 19 [pid 5976] <... set_robust_list resumed>) = 0 [pid 5975] <... bpf resumed>) = 4 [pid 5974] perf_event_open( [pid 5874] <... unlink resumed>) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5976] chdir("./17" [pid 5974] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5875] getdents64(3, [pid 5874] umount2("./16/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5975] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5976] <... chdir resumed>) = 0 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] umount2("./17/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5976] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5974] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] newfstatat(AT_FDCWD, "./16/cgroup.net", [pid 5976] <... prctl resumed>) = 0 [pid 5974] <... bpf resumed>) = 4 [pid 5875] newfstatat(AT_FDCWD, "./17/binderfs", [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5974] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5976] setpgid(0, 0 [pid 5975] <... bpf resumed>) = 5 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] unlink("./16/cgroup.net" [pid 5975] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24) = 6 [pid 5976] <... setpgid resumed>) = 0 [pid 5975] perf_event_open( [pid 5974] <... bpf resumed>) = 5 [pid 5875] unlink("./17/binderfs" [pid 5874] <... unlink resumed>) = 0 [pid 5976] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5975] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5974] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5875] <... unlink resumed>) = 0 [pid 5976] <... symlink resumed>) = 0 [pid 5975] close(3 [pid 5875] umount2("./17/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] umount2("./16/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5976] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5975] <... close resumed>) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5976] <... symlink resumed>) = 0 [pid 5974] <... bpf resumed>) = 6 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5976] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5975] close(4 [pid 5875] newfstatat(AT_FDCWD, "./17/cgroup.net", [pid 5874] newfstatat(AT_FDCWD, "./16/cgroup.cpu", [pid 5975] <... close resumed>) = 0 [pid 5974] perf_event_open( [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5976] <... symlink resumed>) = 0 [pid 5975] close(5 [pid 5974] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5875] unlink("./17/cgroup.net" [pid 5874] unlink("./16/cgroup.cpu" [pid 5976] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5975] <... close resumed>) = 0 [pid 5974] close(3 [pid 5875] <... unlink resumed>) = 0 [pid 5976] <... openat resumed>) = 3 [pid 5975] close(6 [pid 5976] write(3, "1000", 4 [pid 5875] umount2("./17/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... unlink resumed>) = 0 [pid 5976] <... write resumed>) = 4 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5975] <... close resumed>) = 0 [pid 5874] umount2("./16/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5976] close(3 [pid 5975] close(7 [pid 5875] newfstatat(AT_FDCWD, "./17/cgroup.cpu", [pid 5975] <... close resumed>) = 0 [pid 5975] close(8) = -1 EBADF (Bad file descriptor) [pid 5975] close(9) = -1 EBADF (Bad file descriptor) [pid 5975] close(10) = -1 EBADF (Bad file descriptor) [pid 5975] close(11) = -1 EBADF (Bad file descriptor) [pid 5975] close(12) = -1 EBADF (Bad file descriptor) [pid 5975] close(13) = -1 EBADF (Bad file descriptor) [pid 5975] close(14) = -1 EBADF (Bad file descriptor) [pid 5975] close(15) = -1 EBADF (Bad file descriptor) [pid 5975] close(16) = -1 EBADF (Bad file descriptor) [pid 5975] close(17) = -1 EBADF (Bad file descriptor) [pid 5975] close(18) = -1 EBADF (Bad file descriptor) [pid 5975] close(19) = -1 EBADF (Bad file descriptor) [pid 5975] close(20) = -1 EBADF (Bad file descriptor) [pid 5975] close(21) = -1 EBADF (Bad file descriptor) [pid 5975] close(22) = -1 EBADF (Bad file descriptor) [pid 5975] close(23) = -1 EBADF (Bad file descriptor) [pid 5975] close(24) = -1 EBADF (Bad file descriptor) [pid 5975] close(25) = -1 EBADF (Bad file descriptor) [pid 5975] close(26) = -1 EBADF (Bad file descriptor) [pid 5975] close(27) = -1 EBADF (Bad file descriptor) [pid 5975] close(28) = -1 EBADF (Bad file descriptor) [pid 5975] close(29) = -1 EBADF (Bad file descriptor) [pid 5975] exit_group(0) = ? [pid 5976] <... close resumed>) = 0 [pid 5974] <... close resumed>) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5976] read(200, [pid 5875] unlink("./17/cgroup.cpu" [pid 5976] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5976] symlink("/dev/binderfs", "./binderfs" [pid 5974] close(4 [pid 5875] <... unlink resumed>) = 0 [pid 5874] newfstatat(AT_FDCWD, "./16/cgroup", [pid 5974] <... close resumed>) = 0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5975] +++ exited with 0 +++ [pid 5974] close(5 [pid 5976] <... symlink resumed>) = 0 [pid 5974] <... close resumed>) = 0 [pid 5875] umount2("./17/cgroup", MNT_FORCE|UMOUNT_NOFOLLOWexecuting program [pid 5976] write(1, "executing program\n", 18 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5976] <... write resumed>) = 18 [pid 5875] newfstatat(AT_FDCWD, "./17/cgroup", [pid 5976] perf_event_open( [pid 5974] close(6 [pid 5874] unlink("./16/cgroup" [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5974] <... close resumed>) = 0 [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5874] <... unlink resumed>) = 0 [pid 5877] restart_syscall(<... resuming interrupted clone ...> [pid 5875] unlink("./17/cgroup" [pid 5874] getdents64(3, [pid 5974] close(7 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5976] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5974] <... close resumed>) = 0 [pid 5875] <... unlink resumed>) = 0 [pid 5974] close(8 [pid 5874] close(3 [pid 5974] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... close resumed>) = 0 [pid 5974] close(9 [pid 5874] rmdir("./16" [pid 5974] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... rmdir resumed>) = 0 [pid 5976] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5974] close(10 [pid 5875] getdents64(3, [pid 5874] mkdir("./17", 0777 [pid 5974] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5976] <... bpf resumed>) = 4 [pid 5974] close(11 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5874] <... mkdir resumed>) = 0 [pid 5974] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] close(3 [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5976] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5974] close(12 [pid 5875] <... close resumed>) = 0 ./strace-static-x86_64: Process 5977 attached [pid 5974] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] rmdir("./17" [pid 5977] set_robust_list(0x5555947fb660, 24 [pid 5974] close(13 [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 19 [pid 5977] <... set_robust_list resumed>) = 0 [pid 5974] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... restart_syscall resumed>) = 0 [pid 5977] chdir("./17") = 0 [pid 5974] close(14 [pid 5977] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5974] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./17", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5977] <... prctl resumed>) = 0 [pid 5974] close(15 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5977] setpgid(0, 0 [pid 5974] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5977] <... setpgid resumed>) = 0 [pid 5974] close(16 [pid 5877] <... openat resumed>) = 3 [pid 5977] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5976] <... bpf resumed>) = 5 [pid 5875] <... rmdir resumed>) = 0 [pid 5974] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5974] close(17 [pid 5877] newfstatat(3, "", [pid 5977] <... symlink resumed>) = 0 [pid 5976] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5974] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] mkdir("./18", 0777 [pid 5977] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5974] close(18 [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5977] <... symlink resumed>) = 0 [pid 5974] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... mkdir resumed>) = 0 [pid 5977] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5974] close(19 [pid 5877] getdents64(3, [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5977] <... symlink resumed>) = 0 [pid 5977] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5974] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5977] <... openat resumed>) = 3 [pid 5974] close(20) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./17/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5974] close(21 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5977] write(3, "1000", 4 [pid 5974] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./17/binderfs", [pid 5977] <... write resumed>) = 4 [pid 5976] <... bpf resumed>) = 6 [pid 5974] close(22 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5977] close(3 [pid 5974] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./17/binderfs"./strace-static-x86_64: Process 5978 attached [pid 5977] <... close resumed>) = 0 [pid 5974] close(23 [pid 5877] <... unlink resumed>) = 0 [pid 5978] set_robust_list(0x5555947fb660, 24) = 0 executing program [pid 5977] read(200, [pid 5974] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./17/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5978] chdir("./18" [pid 5977] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5976] perf_event_open( [pid 5978] <... chdir resumed>) = 0 [pid 5977] symlink("/dev/binderfs", "./binderfs" [pid 5974] close(24 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5978] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5977] <... symlink resumed>) = 0 [pid 5978] <... prctl resumed>) = 0 [pid 5974] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./17/cgroup.net", [pid 5978] setpgid(0, 0 [pid 5977] write(1, "executing program\n", 18 [pid 5974] close(25 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5978] <... setpgid resumed>) = 0 [pid 5977] <... write resumed>) = 18 [pid 5976] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5974] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./17/cgroup.net" [pid 5978] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5977] perf_event_open( [pid 5976] close(3 [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 20 [pid 5978] <... symlink resumed>) = 0 [pid 5974] close(26 [pid 5877] <... unlink resumed>) = 0 [pid 5978] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5974] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./17/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5978] <... symlink resumed>) = 0 [pid 5974] close(27 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5978] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5974] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5978] <... symlink resumed>) = 0 [pid 5974] close(28 [pid 5877] newfstatat(AT_FDCWD, "./17/cgroup.cpu", [pid 5974] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5974] close(29 [pid 5978] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5974] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./17/cgroup.cpu" [pid 5978] <... openat resumed>) = 3 [pid 5974] exit_group(0 [pid 5877] <... unlink resumed>) = 0 [pid 5877] umount2("./17/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5978] write(3, "1000", 4 [pid 5974] <... exit_group resumed>) = ? [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5978] <... write resumed>) = 4 [pid 5978] close(3 [pid 5977] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5976] <... close resumed>) = 0 [pid 5974] +++ exited with 0 +++ [pid 5877] newfstatat(AT_FDCWD, "./17/cgroup", [pid 5978] <... close resumed>) = 0 [pid 5977] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5976] close(4 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5978] read(200, 0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5978] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5976] <... close resumed>) = 0 [pid 5877] unlink("./17/cgroup" [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5978] write(1, "executing program\n", 18executing program ) = 18 [pid 5977] <... bpf resumed>) = 4 [pid 5976] close(5 [pid 5877] <... unlink resumed>) = 0 [pid 5876] umount2("./18", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5978] perf_event_open( [pid 5977] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5976] <... close resumed>) = 0 [pid 5877] getdents64(3, [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5978] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5877] close(3 [pid 5978] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5976] close(6 [pid 5877] <... close resumed>) = 0 [pid 5876] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5877] rmdir("./17" [pid 5876] <... openat resumed>) = 3 [pid 5978] <... bpf resumed>) = 4 [pid 5976] <... close resumed>) = 0 [pid 5877] <... rmdir resumed>) = 0 [pid 5978] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5976] close(7 [pid 5877] mkdir("./18", 0777 [pid 5876] newfstatat(3, "", [pid 5977] <... bpf resumed>) = 5 [pid 5976] <... close resumed>) = 0 [pid 5877] <... mkdir resumed>) = 0 [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5978] <... bpf resumed>) = 5 [pid 5977] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5976] close(8 [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5978] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5976] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] getdents64(3, [pid 5976] close(9 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5976] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./18/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5976] close(10 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5976] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(AT_FDCWD, "./18/binderfs", [pid 5976] close(11 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5976] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] unlink("./18/binderfs"./strace-static-x86_64: Process 5979 attached [pid 5977] <... bpf resumed>) = 6 [pid 5976] close(12 [pid 5876] <... unlink resumed>) = 0 [pid 5979] set_robust_list(0x5555947fb660, 24 [pid 5976] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5977] perf_event_open( [pid 5979] <... set_robust_list resumed>) = 0 [pid 5976] close(13 [pid 5979] chdir("./18" [pid 5976] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 20 [pid 5876] umount2("./18/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5977] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5979] <... chdir resumed>) = 0 [pid 5978] <... bpf resumed>) = 6 [pid 5977] close(3 [pid 5976] close(14 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5978] perf_event_open( [pid 5976] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(AT_FDCWD, "./18/cgroup.net", [pid 5979] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5978] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5977] <... close resumed>) = 0 [pid 5976] close(15 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5979] setpgid(0, 0 [pid 5978] close(3 [pid 5976] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] unlink("./18/cgroup.net" [pid 5977] close(4 [pid 5979] <... setpgid resumed>) = 0 [pid 5976] close(16 [pid 5979] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5977] <... close resumed>) = 0 [pid 5876] <... unlink resumed>) = 0 [pid 5976] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5979] <... symlink resumed>) = 0 [pid 5976] close(17 [pid 5876] umount2("./18/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5979] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5977] close(5 [pid 5976] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5979] <... symlink resumed>) = 0 [pid 5977] <... close resumed>) = 0 [pid 5976] close(18 [pid 5979] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5976] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(AT_FDCWD, "./18/cgroup.cpu", [pid 5977] close(6 [pid 5979] <... symlink resumed>) = 0 [pid 5976] close(19 [pid 5979] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5979] <... openat resumed>) = 3 [pid 5976] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5976] close(20) = -1 EBADF (Bad file descriptor) [pid 5979] write(3, "1000", 4 [pid 5976] close(21 [pid 5876] unlink("./18/cgroup.cpu" [pid 5979] <... write resumed>) = 4 [pid 5977] <... close resumed>) = 0 [pid 5976] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 5979] close(3 [pid 5976] close(22 [pid 5876] umount2("./18/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5979] <... close resumed>) = 0 [pid 5976] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5979] read(200, [pid 5976] close(23 [pid 5876] newfstatat(AT_FDCWD, "./18/cgroup", [pid 5979] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5977] close(7 [pid 5976] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5979] symlink("/dev/binderfs", "./binderfs" [pid 5978] <... close resumed>) = 0 [pid 5977] <... close resumed>) = 0 [pid 5976] close(24 [pid 5876] unlink("./18/cgroup" [pid 5979] <... symlink resumed>) = 0 [pid 5978] close(4executing program [pid 5977] close(8 [pid 5976] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5979] write(1, "executing program\n", 18 [pid 5876] <... unlink resumed>) = 0 [pid 5976] close(25 [pid 5979] <... write resumed>) = 18 [pid 5976] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5978] <... close resumed>) = 0 [pid 5977] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5976] close(26 [pid 5876] getdents64(3, [pid 5979] perf_event_open( [pid 5978] close(5 [pid 5977] close(9 [pid 5976] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5977] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5977] close(10) = -1 EBADF (Bad file descriptor) [pid 5978] <... close resumed>) = 0 [pid 5976] close(27 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5978] close(6 [pid 5976] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] close(3 [pid 5979] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5978] <... close resumed>) = 0 [pid 5977] close(11 [pid 5979] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5978] close(7 [pid 5977] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5976] close(28 [pid 5876] <... close resumed>) = 0 [pid 5979] <... bpf resumed>) = 4 [pid 5978] <... close resumed>) = 0 [pid 5977] close(12 [pid 5976] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] rmdir("./18" [pid 5979] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5978] close(8 [pid 5977] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5976] close(29 [pid 5977] close(13) = -1 EBADF (Bad file descriptor) [pid 5978] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5977] close(14 [pid 5976] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... rmdir resumed>) = 0 [pid 5978] close(9 [pid 5977] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5977] close(15 [pid 5976] exit_group(0 [pid 5978] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] mkdir("./19", 0777 [pid 5978] close(10 [pid 5976] <... exit_group resumed>) = ? [pid 5978] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5977] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... mkdir resumed>) = 0 [pid 5977] close(16) = -1 EBADF (Bad file descriptor) [pid 5977] close(17) = -1 EBADF (Bad file descriptor) [pid 5977] close(18) = -1 EBADF (Bad file descriptor) [pid 5977] close(19 [pid 5976] +++ exited with 0 +++ [pid 5977] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5977] close(20 [pid 5978] close(11 [pid 5977] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5977] close(21 [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5977] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5977] close(22) = -1 EBADF (Bad file descriptor) [pid 5977] close(23) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5980 attached [pid 5979] <... bpf resumed>) = 5 [pid 5978] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5977] close(24 [pid 5979] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5978] close(12 [pid 5977] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5980] set_robust_list(0x5555947fb660, 24 [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 21 [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5978] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5977] close(25 [pid 5873] restart_syscall(<... resuming interrupted clone ...> [pid 5980] <... set_robust_list resumed>) = 0 [pid 5978] close(13 [pid 5977] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... restart_syscall resumed>) = 0 [pid 5978] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5980] chdir("./19") = 0 [pid 5979] <... bpf resumed>) = 6 [pid 5978] close(14 [pid 5977] close(26 [pid 5980] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5979] perf_event_open( [pid 5978] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5977] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5980] <... prctl resumed>) = 0 [pid 5978] close(15 [pid 5980] setpgid(0, 0 [pid 5978] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5977] close(27 [pid 5873] umount2("./17", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5980] <... setpgid resumed>) = 0 [pid 5980] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5979] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5978] close(16 [pid 5977] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5979] close(3 [pid 5977] close(28 [pid 5873] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5980] <... symlink resumed>) = 0 [pid 5978] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5977] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5980] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5978] close(17 [pid 5977] close(29 [pid 5873] <... openat resumed>) = 3 [pid 5980] <... symlink resumed>) = 0 [pid 5978] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5977] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] newfstatat(3, "", [pid 5980] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5978] close(18 [pid 5980] <... symlink resumed>) = 0 [pid 5978] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5977] exit_group(0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5980] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5978] close(19 [pid 5977] <... exit_group resumed>) = ? [pid 5873] getdents64(3, [pid 5978] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5978] close(20 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5980] <... openat resumed>) = 3 [pid 5980] write(3, "1000", 4) = 4 [pid 5980] close(3) = 0 [pid 5980] read(200, [pid 5978] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5977] +++ exited with 0 +++ [pid 5873] umount2("./17/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5980] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5978] close(21 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5980] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5979] <... close resumed>) = 0 [pid 5978] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] newfstatat(AT_FDCWD, "./17/binderfs", [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5979] close(4 [pid 5978] close(22 [pid 5980] write(1, "executing program\n", 18executing program [pid 5978] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] restart_syscall(<... resuming interrupted clone ...> [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5980] <... write resumed>) = 18 [pid 5979] <... close resumed>) = 0 [pid 5980] perf_event_open( [pid 5979] close(5 [pid 5978] close(23 [pid 5874] <... restart_syscall resumed>) = 0 [pid 5873] unlink("./17/binderfs" [pid 5980] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5979] <... close resumed>) = 0 [pid 5873] <... unlink resumed>) = 0 [pid 5979] close(6 [pid 5873] umount2("./17/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5980] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5979] <... close resumed>) = 0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5980] <... bpf resumed>) = 4 [pid 5979] close(7 [pid 5980] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5979] <... close resumed>) = 0 [pid 5873] newfstatat(AT_FDCWD, "./17/cgroup.net", [pid 5978] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5980] <... bpf resumed>) = 5 [pid 5979] close(8 [pid 5978] close(24 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5980] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5979] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5978] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./17", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5978] close(25 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5979] close(9 [pid 5873] unlink("./17/cgroup.net" [pid 5978] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5978] close(26 [pid 5874] <... openat resumed>) = 3 [pid 5978] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] newfstatat(3, "", [pid 5979] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5978] close(27 [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5979] close(10 [pid 5978] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] getdents64(3, [pid 5873] <... unlink resumed>) = 0 [pid 5979] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5978] close(28 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5978] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./17/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5978] close(29 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5978] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] newfstatat(AT_FDCWD, "./17/binderfs", [pid 5980] <... bpf resumed>) = 6 [pid 5979] close(11 [pid 5978] exit_group(0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] umount2("./17/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5980] perf_event_open( [pid 5979] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5978] <... exit_group resumed>) = ? [pid 5874] unlink("./17/binderfs" [pid 5980] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5979] close(12 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5980] close(3 [pid 5979] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... unlink resumed>) = 0 [pid 5873] newfstatat(AT_FDCWD, "./17/cgroup.cpu", [pid 5978] +++ exited with 0 +++ [pid 5874] umount2("./17/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5979] close(13 [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5874] newfstatat(AT_FDCWD, "./17/cgroup.net", [pid 5873] unlink("./17/cgroup.cpu" [pid 5979] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] restart_syscall(<... resuming interrupted clone ...> [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... unlink resumed>) = 0 [pid 5979] close(14 [pid 5874] unlink("./17/cgroup.net" [pid 5979] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] umount2("./17/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5979] close(15 [pid 5874] <... unlink resumed>) = 0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5979] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./17/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] newfstatat(AT_FDCWD, "./17/cgroup", [pid 5979] close(16 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5979] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] newfstatat(AT_FDCWD, "./17/cgroup.cpu", [pid 5873] unlink("./17/cgroup" [pid 5979] close(17 [pid 5875] <... restart_syscall resumed>) = 0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5979] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] unlink("./17/cgroup.cpu" [pid 5873] <... unlink resumed>) = 0 [pid 5979] close(18 [pid 5874] <... unlink resumed>) = 0 [pid 5873] getdents64(3, [pid 5874] umount2("./17/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] close(3) = 0 [pid 5874] newfstatat(AT_FDCWD, "./17/cgroup", [pid 5873] rmdir("./17" [pid 5979] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... rmdir resumed>) = 0 [pid 5875] umount2("./18", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5979] close(19 [pid 5874] unlink("./17/cgroup" [pid 5873] mkdir("./18", 0777 [pid 5979] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] <... unlink resumed>) = 0 [pid 5979] close(20 [pid 5875] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5979] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5979] close(21 [pid 5875] <... openat resumed>) = 3 [pid 5874] getdents64(3, [pid 5873] <... mkdir resumed>) = 0 [pid 5980] <... close resumed>) = 0 [pid 5979] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5875] newfstatat(3, "", [pid 5980] close(4 [pid 5979] close(22 [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5874] close(3 [pid 5980] <... close resumed>) = 0 [pid 5979] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5980] close(5 [pid 5979] close(23 [pid 5874] <... close resumed>) = 0 ./strace-static-x86_64: Process 5982 attached [pid 5979] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5980] <... close resumed>) = 0 [pid 5979] close(24 [pid 5982] set_robust_list(0x5555947fb660, 24 [pid 5980] close(6 [pid 5979] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] getdents64(3, [pid 5874] rmdir("./17" [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 20 [pid 5982] <... set_robust_list resumed>) = 0 [pid 5979] close(25) = -1 EBADF (Bad file descriptor) [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5874] <... rmdir resumed>) = 0 [pid 5982] chdir("./18" [pid 5979] close(26) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./18/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] mkdir("./18", 0777 [pid 5980] <... close resumed>) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5982] <... chdir resumed>) = 0 [pid 5980] close(7 [pid 5979] close(27 [pid 5875] newfstatat(AT_FDCWD, "./18/binderfs", [pid 5874] <... mkdir resumed>) = 0 [pid 5982] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5979] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5982] <... prctl resumed>) = 0 [pid 5979] close(28 [pid 5875] unlink("./18/binderfs" [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5982] setpgid(0, 0 [pid 5980] <... close resumed>) = 0 [pid 5979] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 [pid 5979] close(29./strace-static-x86_64: Process 5983 attached [pid 5982] <... setpgid resumed>) = 0 [pid 5980] close(8 [pid 5979] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./18/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5980] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5979] exit_group(0 [pid 5982] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5980] close(9 [pid 5979] <... exit_group resumed>) = ? [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5983] set_robust_list(0x5555947fb660, 24 [pid 5982] <... symlink resumed>) = 0 [pid 5980] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(AT_FDCWD, "./18/cgroup.net", [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 20 [pid 5983] <... set_robust_list resumed>) = 0 [pid 5982] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5980] close(10 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5983] chdir("./18" [pid 5982] <... symlink resumed>) = 0 [pid 5980] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5979] +++ exited with 0 +++ [pid 5875] unlink("./18/cgroup.net" [pid 5983] <... chdir resumed>) = 0 [pid 5982] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5980] close(11 [pid 5875] <... unlink resumed>) = 0 [pid 5983] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5982] <... symlink resumed>) = 0 [pid 5980] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./18/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5980] close(12) = -1 EBADF (Bad file descriptor) [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5980] close(13 [pid 5877] umount2("./18", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5980] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5982] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5980] close(14 [pid 5983] setpgid(0, 0 [pid 5980] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5983] <... setpgid resumed>) = 0 [pid 5877] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5980] close(15 [pid 5877] <... openat resumed>) = 3 [pid 5980] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(AT_FDCWD, "./18/cgroup.cpu", [pid 5980] close(16 [pid 5877] newfstatat(3, "", [pid 5983] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5980] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5982] <... openat resumed>) = 3 [pid 5980] close(17 [pid 5875] unlink("./18/cgroup.cpu" [pid 5980] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] getdents64(3, [pid 5980] close(18 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5875] <... unlink resumed>) = 0 [pid 5983] <... symlink resumed>) = 0 [pid 5982] write(3, "1000", 4 [pid 5980] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5983] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5982] <... write resumed>) = 4 [pid 5877] umount2("./18/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] umount2("./18/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5982] close(3 [pid 5980] close(19 [pid 5982] <... close resumed>) = 0 [pid 5980] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5983] <... symlink resumed>) = 0 [pid 5982] read(200, [pid 5980] close(20 [pid 5877] newfstatat(AT_FDCWD, "./18/binderfs", [pid 5875] newfstatat(AT_FDCWD, "./18/cgroup", [pid 5983] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5982] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5980] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5980] close(21 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5983] <... symlink resumed>) = 0 [pid 5982] symlink("/dev/binderfs", "./binderfs" [pid 5980] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./18/binderfs" [pid 5875] unlink("./18/cgroup" [pid 5980] close(22 [pid 5982] <... symlink resumed>) = 0 [pid 5980] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 5875] <... unlink resumed>) = 0 [pid 5983] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5982] write(1, "executing program\n", 18 [pid 5980] close(23executing program [pid 5875] getdents64(3, [pid 5980] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./18/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5980] close(24 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5983] <... openat resumed>) = 3 [pid 5982] <... write resumed>) = 18 [pid 5980] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5980] close(25 [pid 5877] newfstatat(AT_FDCWD, "./18/cgroup.net", [pid 5982] perf_event_open( [pid 5980] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] close(3 [pid 5980] close(26 [pid 5983] write(3, "1000", 4 [pid 5980] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./18/cgroup.net" [pid 5980] close(27) = -1 EBADF (Bad file descriptor) [pid 5983] <... write resumed>) = 4 [pid 5980] close(28 [pid 5875] <... close resumed>) = 0 [pid 5983] close(3 [pid 5875] rmdir("./18" [pid 5983] <... close resumed>) = 0 [pid 5980] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 5983] read(200, [pid 5980] close(29 [pid 5877] umount2("./18/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... rmdir resumed>) = 0 [pid 5983] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5982] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5980] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] mkdir("./19", 0777 [pid 5983] symlink("/dev/binderfs", "./binderfs" [pid 5980] exit_group(0 [pid 5877] newfstatat(AT_FDCWD, "./18/cgroup.cpu", [pid 5983] <... symlink resumed>) = 0 [pid 5982] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5980] <... exit_group resumed>) = ? [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] <... mkdir resumed>) = 0 executing program [pid 5983] write(1, "executing program\n", 18 [pid 5982] <... bpf resumed>) = 4 [pid 5983] <... write resumed>) = 18 [pid 5983] perf_event_open( [pid 5982] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5983] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5980] +++ exited with 0 +++ [pid 5877] unlink("./18/cgroup.cpu") = 0 [pid 5877] umount2("./18/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5877] newfstatat(AT_FDCWD, "./18/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5877] unlink("./18/cgroup") = 0 [pid 5877] getdents64(3, 0x5555947fc6f0 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5984 attached [pid 5983] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5877] close(3 [pid 5984] set_robust_list(0x5555947fb660, 24 [pid 5877] <... close resumed>) = 0 [pid 5984] <... set_robust_list resumed>) = 0 [pid 5984] chdir("./19" [pid 5983] <... bpf resumed>) = 4 [pid 5982] <... bpf resumed>) = 5 [pid 5877] rmdir("./18" [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 21 [pid 5983] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5982] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5984] <... chdir resumed>) = 0 [pid 5877] <... rmdir resumed>) = 0 [pid 5984] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5982] <... bpf resumed>) = 6 [pid 5877] mkdir("./19", 0777 [pid 5984] <... prctl resumed>) = 0 [pid 5982] perf_event_open( [pid 5877] <... mkdir resumed>) = 0 [pid 5984] setpgid(0, 0 [pid 5982] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5876] umount2("./19", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5984] <... setpgid resumed>) = 0 [pid 5983] <... bpf resumed>) = 5 [pid 5982] close(3 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5984] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5983] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5982] <... close resumed>) = 0 [pid 5876] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5985 attached [pid 5984] <... symlink resumed>) = 0 [pid 5876] <... openat resumed>) = 3 [pid 5985] set_robust_list(0x5555947fb660, 24 [pid 5984] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 21 [pid 5876] newfstatat(3, "", [pid 5985] <... set_robust_list resumed>) = 0 [pid 5983] <... bpf resumed>) = 6 [pid 5982] close(4 [pid 5985] chdir("./19" [pid 5983] perf_event_open( [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5985] <... chdir resumed>) = 0 [pid 5984] <... symlink resumed>) = 0 [pid 5983] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5982] <... close resumed>) = 0 [pid 5876] getdents64(3, [pid 5985] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5984] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5983] close(3 [pid 5982] close(5 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5985] <... prctl resumed>) = 0 [pid 5984] <... symlink resumed>) = 0 [pid 5876] umount2("./19/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5985] setpgid(0, 0 [pid 5982] <... close resumed>) = 0 [pid 5985] <... setpgid resumed>) = 0 [pid 5984] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5982] close(6 [pid 5984] <... openat resumed>) = 3 [pid 5876] newfstatat(AT_FDCWD, "./19/binderfs", [pid 5985] symlink("/syzcgroup/unified/syz4", "./cgroup") = 0 [pid 5984] write(3, "1000", 4 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] unlink("./19/binderfs" [pid 5985] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5984] <... write resumed>) = 4 [pid 5876] <... unlink resumed>) = 0 [pid 5984] close(3 [pid 5876] umount2("./19/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5984] <... close resumed>) = 0 [pid 5982] <... close resumed>) = 0 [pid 5985] <... symlink resumed>) = 0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5982] close(7 [pid 5876] newfstatat(AT_FDCWD, "./19/cgroup.net", [pid 5985] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5984] read(200, [pid 5982] <... close resumed>) = 0 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5984] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5982] close(8 [pid 5984] symlink("/dev/binderfs", "./binderfs" [pid 5982] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5985] <... symlink resumed>) = 0 [pid 5982] close(9 [pid 5876] unlink("./19/cgroup.net" [pid 5985] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5984] <... symlink resumed>) = 0 [pid 5982] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 5984] write(1, "executing program\n", 18executing program [pid 5982] close(10 [pid 5876] umount2("./19/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5985] <... openat resumed>) = 3 [pid 5984] <... write resumed>) = 18 [pid 5982] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5985] write(3, "1000", 4 [pid 5982] close(11 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5985] <... write resumed>) = 4 [pid 5984] perf_event_open( [pid 5985] close(3 [pid 5982] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5985] <... close resumed>) = 0 [pid 5982] close(12 [pid 5876] newfstatat(AT_FDCWD, "./19/cgroup.cpu", [pid 5985] read(200, [pid 5982] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5985] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5982] close(13 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5985] symlink("/dev/binderfs", "./binderfs" [pid 5876] unlink("./19/cgroup.cpu" [pid 5982] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 5985] <... symlink resumed>) = 0 [pid 5982] close(14 [pid 5985] write(1, "executing program\n", 18executing program [pid 5982] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./19/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5985] <... write resumed>) = 18 [pid 5982] close(15 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5982] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5985] perf_event_open( [pid 5982] close(16 [pid 5876] newfstatat(AT_FDCWD, "./19/cgroup", [pid 5982] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5982] close(17 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5982] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] unlink("./19/cgroup" [pid 5982] close(18) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 5982] close(19 [pid 5876] getdents64(3, [pid 5982] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5982] close(20 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5982] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] close(3 [pid 5982] close(21 [pid 5876] <... close resumed>) = 0 [pid 5982] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] rmdir("./19" [pid 5982] close(22 [pid 5876] <... rmdir resumed>) = 0 [pid 5982] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] mkdir("./20", 0777 [pid 5982] close(23 [pid 5876] <... mkdir resumed>) = 0 [pid 5985] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5984] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5983] <... close resumed>) = 0 [pid 5982] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5985] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5984] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5983] close(4 [pid 5982] close(24./strace-static-x86_64: Process 5986 attached [pid 5985] <... bpf resumed>) = 4 [pid 5984] <... bpf resumed>) = 4 [pid 5983] <... close resumed>) = 0 [pid 5982] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 22 [pid 5985] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5982] close(25 [pid 5986] set_robust_list(0x5555947fb660, 24 [pid 5984] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5983] close(5 [pid 5986] <... set_robust_list resumed>) = 0 [pid 5982] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5986] chdir("./20" [pid 5983] <... close resumed>) = 0 [pid 5982] close(26 [pid 5983] close(6 [pid 5982] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5986] <... chdir resumed>) = 0 [pid 5982] close(27 [pid 5985] <... bpf resumed>) = 5 [pid 5983] <... close resumed>) = 0 [pid 5982] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5983] close(7 [pid 5986] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5985] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5984] <... bpf resumed>) = 5 [pid 5982] close(28 [pid 5986] <... prctl resumed>) = 0 [pid 5984] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5983] <... close resumed>) = 0 [pid 5982] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5983] close(8 [pid 5982] close(29 [pid 5983] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5982] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5986] setpgid(0, 0 [pid 5983] close(9 [pid 5986] <... setpgid resumed>) = 0 [pid 5985] <... bpf resumed>) = 6 [pid 5984] <... bpf resumed>) = 6 [pid 5983] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5982] exit_group(0 [pid 5985] perf_event_open( [pid 5984] perf_event_open( [pid 5983] close(10 [pid 5982] <... exit_group resumed>) = ? [pid 5986] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5985] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5984] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5983] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5984] close(3 [pid 5983] close(11 [pid 5986] <... symlink resumed>) = 0 [pid 5984] <... close resumed>) = 0 [pid 5983] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5983] close(12) = -1 EBADF (Bad file descriptor) [pid 5983] close(13 [pid 5984] close(4 [pid 5983] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5984] <... close resumed>) = 0 [pid 5983] close(14 [pid 5984] close(5 [pid 5983] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5984] <... close resumed>) = 0 [pid 5982] +++ exited with 0 +++ [pid 5984] close(6 [pid 5983] close(15 [pid 5985] close(3 [pid 5984] <... close resumed>) = 0 [pid 5986] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5983] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5984] close(7 [pid 5983] close(16 [pid 5984] <... close resumed>) = 0 [pid 5983] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5983] close(17 [pid 5984] close(8 [pid 5983] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5984] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5983] close(18 [pid 5984] close(9 [pid 5983] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5986] <... symlink resumed>) = 0 [pid 5984] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5983] close(19 [pid 5984] close(10 [pid 5983] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5984] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5983] close(20 [pid 5984] close(11 [pid 5983] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5984] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5984] close(12 [pid 5983] close(21 [pid 5984] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5983] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5984] close(13 [pid 5983] close(22 [pid 5984] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5983] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5984] close(14 [pid 5983] close(23 [pid 5984] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5983] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5984] close(15 [pid 5983] close(24 [pid 5984] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5983] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5984] close(16 [pid 5983] close(25 [pid 5986] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5984] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5984] close(17 [pid 5983] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5984] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5983] close(26 [pid 5984] close(18 [pid 5983] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5986] <... symlink resumed>) = 0 [pid 5984] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5983] close(27 [pid 5984] close(19 [pid 5983] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5984] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5983] close(28 [pid 5986] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5984] close(20 [pid 5983] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5984] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5983] close(29 [pid 5873] umount2("./18", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5984] close(21 [pid 5983] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5984] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5983] exit_group(0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5984] close(22) = -1 EBADF (Bad file descriptor) [pid 5984] close(23 [pid 5983] <... exit_group resumed>) = ? [pid 5986] <... openat resumed>) = 3 [pid 5984] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5986] write(3, "1000", 4 [pid 5984] close(24 [pid 5873] <... openat resumed>) = 3 [pid 5986] <... write resumed>) = 4 [pid 5984] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5983] +++ exited with 0 +++ [pid 5873] newfstatat(3, "", [pid 5986] close(3 [pid 5984] close(25 [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5986] <... close resumed>) = 0 [pid 5984] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5986] read(200, [pid 5873] getdents64(3, [pid 5986] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5984] close(26 [pid 5874] restart_syscall(<... resuming interrupted clone ...> [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5984] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5986] symlink("/dev/binderfs", "./binderfs" [pid 5984] close(27 [pid 5873] umount2("./18/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5984] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5984] close(28) = -1 EBADF (Bad file descriptor) [pid 5984] close(29) = -1 EBADF (Bad file descriptor) [pid 5984] exit_group(0) = ? [pid 5986] <... symlink resumed>) = 0 [pid 5985] <... close resumed>) = 0 [pid 5874] <... restart_syscall resumed>) = 0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5985] close(4 [pid 5873] newfstatat(AT_FDCWD, "./18/binderfs", [pid 5874] umount2("./18", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5985] <... close resumed>) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5985] close(5 [pid 5874] <... openat resumed>) = 3 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] newfstatat(3, "", [pid 5986] write(1, "executing program\n", 18 [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5873] unlink("./18/binderfs" [pid 5874] getdents64(3, 0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5874] umount2("./18/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... unlink resumed>) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] newfstatat(AT_FDCWD, "./18/binderfs", [pid 5985] <... close resumed>) = 0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 executing program [pid 5874] unlink("./18/binderfs") = 0 [pid 5874] umount2("./18/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5986] <... write resumed>) = 18 [pid 5985] close(6 [pid 5984] +++ exited with 0 +++ [pid 5873] umount2("./18/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5986] perf_event_open( [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] newfstatat(AT_FDCWD, "./18/cgroup.net", [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] unlink("./18/cgroup.net") = 0 [pid 5874] umount2("./18/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5986] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5985] <... close resumed>) = 0 [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5873] newfstatat(AT_FDCWD, "./18/cgroup.net", [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5986] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5985] close(7 [pid 5874] newfstatat(AT_FDCWD, "./18/cgroup.cpu", [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5986] <... bpf resumed>) = 4 [pid 5985] <... close resumed>) = 0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] unlink("./18/cgroup.net" [pid 5875] umount2("./19", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] unlink("./18/cgroup.cpu" [pid 5873] <... unlink resumed>) = 0 [pid 5985] close(8 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5986] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5985] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5873] umount2("./18/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... openat resumed>) = 3 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] newfstatat(3, "", [pid 5873] newfstatat(AT_FDCWD, "./18/cgroup.cpu", [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] getdents64(3, [pid 5873] unlink("./18/cgroup.cpu" [pid 5986] <... bpf resumed>) = 5 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5873] <... unlink resumed>) = 0 [pid 5874] <... unlink resumed>) = 0 [pid 5875] umount2("./19/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] umount2("./18/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] newfstatat(AT_FDCWD, "./19/binderfs", [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] unlink("./19/binderfs" [pid 5873] newfstatat(AT_FDCWD, "./18/cgroup", [pid 5985] close(9 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5985] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 [pid 5874] umount2("./18/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] unlink("./18/cgroup" [pid 5986] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5985] close(10 [pid 5875] umount2("./19/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... unlink resumed>) = 0 [pid 5986] <... bpf resumed>) = 6 [pid 5985] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5986] perf_event_open( [pid 5985] close(11 [pid 5875] newfstatat(AT_FDCWD, "./19/cgroup.net", [pid 5874] newfstatat(AT_FDCWD, "./18/cgroup", [pid 5873] getdents64(3, [pid 5986] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5985] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5986] close(3 [pid 5985] close(12 [pid 5875] unlink("./19/cgroup.net" [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] close(3 [pid 5985] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] unlink("./18/cgroup" [pid 5985] close(13) = -1 EBADF (Bad file descriptor) [pid 5985] close(14 [pid 5875] <... unlink resumed>) = 0 [pid 5874] <... unlink resumed>) = 0 [pid 5873] <... close resumed>) = 0 [pid 5985] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5985] close(15 [pid 5875] umount2("./19/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] rmdir("./18" [pid 5985] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] getdents64(3, [pid 5985] close(16 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5985] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5985] close(17 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] close(3 [pid 5873] <... rmdir resumed>) = 0 [pid 5875] newfstatat(AT_FDCWD, "./19/cgroup.cpu", [pid 5985] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] <... close resumed>) = 0 [pid 5873] mkdir("./19", 0777 [pid 5985] close(18 [pid 5875] unlink("./19/cgroup.cpu" [pid 5874] rmdir("./18" [pid 5873] <... mkdir resumed>) = 0 [pid 5985] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 [pid 5874] <... rmdir resumed>) = 0 [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5985] close(19 [pid 5875] umount2("./19/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] mkdir("./19", 0777 [pid 5985] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5985] close(20 [pid 5874] <... mkdir resumed>) = 0 [pid 5985] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5987 attached [pid 5985] close(21 [pid 5875] newfstatat(AT_FDCWD, "./19/cgroup", [pid 5985] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5987] set_robust_list(0x5555947fb660, 24 [pid 5985] close(22 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 21 [pid 5987] <... set_robust_list resumed>) = 0 [pid 5985] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] unlink("./19/cgroup"./strace-static-x86_64: Process 5988 attached [pid 5987] chdir("./19" [pid 5985] close(23 [pid 5875] <... unlink resumed>) = 0 [pid 5988] set_robust_list(0x5555947fb660, 24 [pid 5987] <... chdir resumed>) = 0 [pid 5985] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5988] <... set_robust_list resumed>) = 0 [pid 5987] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5985] close(24 [pid 5875] getdents64(3, [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 21 [pid 5988] chdir("./19" [pid 5987] <... prctl resumed>) = 0 [pid 5985] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5988] <... chdir resumed>) = 0 [pid 5987] setpgid(0, 0 [pid 5985] close(25 [pid 5875] close(3 [pid 5987] <... setpgid resumed>) = 0 [pid 5985] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... close resumed>) = 0 [pid 5988] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5987] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5985] close(26 [pid 5875] rmdir("./19" [pid 5988] <... prctl resumed>) = 0 [pid 5985] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... rmdir resumed>) = 0 [pid 5988] setpgid(0, 0 [pid 5987] <... symlink resumed>) = 0 [pid 5985] close(27 [pid 5988] <... setpgid resumed>) = 0 [pid 5985] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5987] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5985] close(28 [pid 5875] mkdir("./20", 0777 [pid 5988] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5987] <... symlink resumed>) = 0 [pid 5875] <... mkdir resumed>) = 0 [pid 5987] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5988] <... symlink resumed>) = 0 [pid 5985] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5985] close(29 [pid 5988] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5985] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5989 attached [pid 5988] <... symlink resumed>) = 0 [pid 5987] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5988] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5987] <... openat resumed>) = 3 [pid 5985] exit_group(0 [pid 5987] write(3, "1000", 4 [pid 5985] <... exit_group resumed>) = ? [pid 5989] set_robust_list(0x5555947fb660, 24 [pid 5987] <... write resumed>) = 4 [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 22 [pid 5989] <... set_robust_list resumed>) = 0 [pid 5988] <... symlink resumed>) = 0 [pid 5987] close(3 [pid 5989] chdir("./20") = 0 [pid 5987] <... close resumed>) = 0 [pid 5989] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5987] read(200, [pid 5989] <... prctl resumed>) = 0 [pid 5987] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5989] setpgid(0, 0 [pid 5988] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5987] symlink("/dev/binderfs", "./binderfs" [pid 5986] <... close resumed>) = 0 [pid 5985] +++ exited with 0 +++ [pid 5989] <... setpgid resumed>) = 0 [pid 5988] <... openat resumed>) = 3 [pid 5988] write(3, "1000", 4 [pid 5987] <... symlink resumed>) = 0 [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5989] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5988] <... write resumed>) = 4 [pid 5987] write(1, "executing program\n", 18 [pid 5986] close(4 [pid 5988] close(3) = 0 [pid 5988] read(200, [pid 5986] <... close resumed>) = 0 [pid 5988] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5988] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5986] close(5executing program [pid 5988] write(1, "executing program\n", 18executing program [pid 5989] <... symlink resumed>) = 0 [pid 5987] <... write resumed>) = 18 [pid 5986] <... close resumed>) = 0 [pid 5877] umount2("./19", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5988] <... write resumed>) = 18 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5989] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5988] perf_event_open( [pid 5987] perf_event_open( [pid 5986] close(6 [pid 5989] <... symlink resumed>) = 0 [pid 5988] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5877] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5989] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5988] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5987] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5877] <... openat resumed>) = 3 [pid 5988] <... bpf resumed>) = 4 [pid 5988] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5989] <... symlink resumed>) = 0 [pid 5987] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5986] <... close resumed>) = 0 [pid 5877] newfstatat(3, "", [pid 5989] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5988] <... bpf resumed>) = 5 [pid 5987] <... bpf resumed>) = 4 [pid 5986] close(7 [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5989] <... openat resumed>) = 3 [pid 5989] write(3, "1000", 4 [pid 5988] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5877] getdents64(3, [pid 5989] <... write resumed>) = 4 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5986] <... close resumed>) = 0 [pid 5989] close(3 [pid 5986] close(8 [pid 5877] umount2("./19/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5989] <... close resumed>) = 0 [pid 5986] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5989] read(200, [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5986] close(9 [pid 5877] newfstatat(AT_FDCWD, "./19/binderfs", [pid 5989] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5986] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5989] symlink("/dev/binderfs", "./binderfs" [pid 5987] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5986] close(10 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5989] <... symlink resumed>) = 0 [pid 5988] <... bpf resumed>) = 6 [pid 5986] <... close resumed>) = -1 EBADF (Bad file descriptor) executing program [pid 5989] write(1, "executing program\n", 18 [pid 5988] perf_event_open( [pid 5986] close(11 [pid 5877] unlink("./19/binderfs" [pid 5989] <... write resumed>) = 18 [pid 5988] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5987] <... bpf resumed>) = 5 [pid 5986] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5989] perf_event_open( [pid 5988] close(3 [pid 5877] <... unlink resumed>) = 0 [pid 5986] close(12 [pid 5989] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5987] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5988] <... close resumed>) = 0 [pid 5986] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./19/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5989] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5988] close(4 [pid 5987] <... bpf resumed>) = 6 [pid 5986] close(13 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5988] <... close resumed>) = 0 [pid 5986] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./19/cgroup.net", [pid 5989] <... bpf resumed>) = 4 [pid 5988] close(5 [pid 5987] perf_event_open( [pid 5986] close(14 [pid 5989] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5988] <... close resumed>) = 0 [pid 5986] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5988] close(6 [pid 5987] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5986] close(15 [pid 5877] unlink("./19/cgroup.net") = 0 [pid 5989] <... bpf resumed>) = 5 [pid 5988] <... close resumed>) = 0 [pid 5987] close(3 [pid 5986] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5989] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5988] close(7 [pid 5986] close(16 [pid 5989] <... bpf resumed>) = 6 [pid 5986] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./19/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5988] <... close resumed>) = 0 [pid 5986] close(17 [pid 5989] perf_event_open( [pid 5988] close(8 [pid 5986] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5989] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5986] close(18 [pid 5988] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5986] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5989] close(3 [pid 5988] close(9 [pid 5986] close(19 [pid 5988] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5987] <... close resumed>) = 0 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5988] close(10 [pid 5986] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./19/cgroup.cpu", [pid 5987] close(4 [pid 5988] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5986] close(20 [pid 5988] close(11 [pid 5986] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5988] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5986] close(21 [pid 5988] close(12 [pid 5987] <... close resumed>) = 0 [pid 5986] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5988] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5986] close(22 [pid 5988] close(13 [pid 5986] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5988] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5986] close(23 [pid 5988] close(14 [pid 5986] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5988] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5986] close(24 [pid 5988] close(15 [pid 5986] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5988] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5986] close(25 [pid 5988] close(16 [pid 5986] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5988] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5986] close(26 [pid 5988] close(17 [pid 5986] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5988] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5986] close(27 [pid 5988] close(18 [pid 5986] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./19/cgroup.cpu" [pid 5987] close(5 [pid 5988] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5986] close(28 [pid 5988] close(19 [pid 5986] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5988] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5986] close(29 [pid 5988] close(20 [pid 5986] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 5988] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5987] <... close resumed>) = 0 [pid 5877] umount2("./19/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5988] close(21 [pid 5987] close(6 [pid 5986] exit_group(0 [pid 5988] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5988] close(22 [pid 5986] <... exit_group resumed>) = ? [pid 5877] newfstatat(AT_FDCWD, "./19/cgroup", [pid 5988] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5987] <... close resumed>) = 0 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5988] close(23 [pid 5987] close(7 [pid 5986] +++ exited with 0 +++ [pid 5877] unlink("./19/cgroup" [pid 5988] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5988] close(24) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 5988] close(25 [pid 5987] <... close resumed>) = 0 [pid 5988] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] getdents64(3, [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5987] close(8) = -1 EBADF (Bad file descriptor) [pid 5988] close(26) = -1 EBADF (Bad file descriptor) [pid 5988] close(27 [pid 5987] close(9 [pid 5988] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5988] close(28) = -1 EBADF (Bad file descriptor) [pid 5988] close(29) = -1 EBADF (Bad file descriptor) [pid 5988] exit_group(0) = ? [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5989] <... close resumed>) = 0 [pid 5987] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./20", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5877] close(3 [pid 5989] close(4 [pid 5987] close(10 [pid 5877] <... close resumed>) = 0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5989] <... close resumed>) = 0 [pid 5987] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] rmdir("./19" [pid 5989] close(5 [pid 5988] +++ exited with 0 +++ [pid 5987] close(11 [pid 5876] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5989] <... close resumed>) = 0 [pid 5987] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... rmdir resumed>) = 0 [pid 5989] close(6 [pid 5987] close(12 [pid 5876] <... openat resumed>) = 3 [pid 5987] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] mkdir("./20", 0777 [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5989] <... close resumed>) = 0 [pid 5877] <... mkdir resumed>) = 0 [pid 5876] newfstatat(3, "", [pid 5989] close(7 [pid 5987] close(13 [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5874] umount2("./19", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5987] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5989] <... close resumed>) = 0 [pid 5989] close(8) = -1 EBADF (Bad file descriptor) [pid 5989] close(9) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5990 attached [pid 5987] close(14 [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5874] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5990] set_robust_list(0x5555947fb660, 24 [pid 5989] close(10 [pid 5987] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 22 [pid 5876] getdents64(3, [pid 5990] <... set_robust_list resumed>) = 0 [pid 5989] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5987] close(15 [pid 5874] <... openat resumed>) = 3 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5874] newfstatat(3, "", [pid 5990] chdir("./20" [pid 5989] close(11 [pid 5987] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./20/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5990] <... chdir resumed>) = 0 [pid 5989] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5987] close(16 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5990] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5989] close(12 [pid 5987] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(AT_FDCWD, "./20/binderfs", [pid 5874] getdents64(3, [pid 5990] <... prctl resumed>) = 0 [pid 5989] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5987] close(17 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5990] setpgid(0, 0 [pid 5989] close(13 [pid 5987] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] unlink("./20/binderfs" [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5990] <... setpgid resumed>) = 0 [pid 5989] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5987] close(18 [pid 5876] <... unlink resumed>) = 0 [pid 5990] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5989] close(14 [pid 5987] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./19/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5990] <... symlink resumed>) = 0 [pid 5989] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5987] close(19 [pid 5876] umount2("./20/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5990] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5989] close(15 [pid 5987] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5990] <... symlink resumed>) = 0 [pid 5987] close(20 [pid 5874] newfstatat(AT_FDCWD, "./19/binderfs", [pid 5989] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5987] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(AT_FDCWD, "./20/cgroup.net", [pid 5989] close(16 [pid 5987] close(21 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5990] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5989] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5987] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5990] <... symlink resumed>) = 0 [pid 5989] close(17 [pid 5987] close(22 [pid 5876] unlink("./20/cgroup.net" [pid 5874] unlink("./19/binderfs" [pid 5990] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5989] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5987] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5990] <... openat resumed>) = 3 [pid 5989] close(18 [pid 5987] close(23 [pid 5876] <... unlink resumed>) = 0 [pid 5874] <... unlink resumed>) = 0 [pid 5990] write(3, "1000", 4 [pid 5989] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5987] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./20/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] umount2("./19/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5990] <... write resumed>) = 4 [pid 5989] close(19 [pid 5987] close(24 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5990] close(3 [pid 5989] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5987] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(AT_FDCWD, "./20/cgroup.cpu", [pid 5990] <... close resumed>) = 0 [pid 5989] close(20 [pid 5987] close(25 [pid 5990] read(200, [pid 5989] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5987] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5990] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5989] close(21 [pid 5987] close(26 [pid 5990] symlink("/dev/binderfs", "./binderfs" [pid 5876] unlink("./20/cgroup.cpu" [pid 5990] <... symlink resumed>) = 0 [pid 5989] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5987] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 executing program [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5990] write(1, "executing program\n", 18 [pid 5989] close(22 [pid 5987] close(27 [pid 5876] umount2("./20/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5990] <... write resumed>) = 18 [pid 5989] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5987] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] newfstatat(AT_FDCWD, "./19/cgroup.net", [pid 5990] perf_event_open( [pid 5989] close(23 [pid 5987] close(28 [pid 5876] newfstatat(AT_FDCWD, "./20/cgroup", [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5989] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5987] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] unlink("./19/cgroup.net" [pid 5990] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5874] <... unlink resumed>) = 0 [pid 5874] umount2("./19/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5874] newfstatat(AT_FDCWD, "./19/cgroup.cpu", [pid 5990] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5989] close(24 [pid 5987] close(29 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5990] <... bpf resumed>) = 4 [pid 5989] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5987] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] unlink("./20/cgroup" [pid 5874] unlink("./19/cgroup.cpu" [pid 5990] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5989] close(25 [pid 5987] exit_group(0 [pid 5876] <... unlink resumed>) = 0 [pid 5990] <... bpf resumed>) = 5 [pid 5874] <... unlink resumed>) = 0 [pid 5989] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./19/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5989] close(26) = -1 EBADF (Bad file descriptor) [pid 5987] <... exit_group resumed>) = ? [pid 5876] getdents64(3, [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5874] newfstatat(AT_FDCWD, "./19/cgroup", [pid 5990] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5989] close(27 [pid 5987] +++ exited with 0 +++ [pid 5876] close(3 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] unlink("./19/cgroup" [pid 5989] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... close resumed>) = 0 [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5873] restart_syscall(<... resuming interrupted clone ...> [pid 5989] close(28 [pid 5876] rmdir("./20" [pid 5989] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5990] <... bpf resumed>) = 6 [pid 5876] <... rmdir resumed>) = 0 [pid 5990] perf_event_open( [pid 5989] close(29 [pid 5874] <... unlink resumed>) = 0 [pid 5876] mkdir("./21", 0777 [pid 5990] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5989] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5990] close(3 [pid 5989] exit_group(0 [pid 5876] <... mkdir resumed>) = 0 [pid 5874] getdents64(3, [pid 5989] <... exit_group resumed>) = ? [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5874] close(3) = 0 ./strace-static-x86_64: Process 5991 attached [pid 5989] +++ exited with 0 +++ [pid 5874] rmdir("./19" [pid 5873] <... restart_syscall resumed>) = 0 [pid 5991] set_robust_list(0x5555947fb660, 24 [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 23 [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5874] <... rmdir resumed>) = 0 [pid 5991] <... set_robust_list resumed>) = 0 [pid 5874] mkdir("./20", 0777) = 0 [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5991] chdir("./21" [pid 5875] umount2("./20", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] umount2("./19", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5990] <... close resumed>) = 0 [pid 5873] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5873] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5873] getdents64(3, 0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5873] umount2("./19/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5873] newfstatat(AT_FDCWD, "./19/binderfs", ./strace-static-x86_64: Process 5992 attached [pid 5990] close(4 [pid 5992] set_robust_list(0x5555947fb660, 24 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5992] <... set_robust_list resumed>) = 0 [pid 5873] unlink("./19/binderfs" [pid 5992] chdir("./20" [pid 5991] <... chdir resumed>) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5992] <... chdir resumed>) = 0 [pid 5991] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5990] <... close resumed>) = 0 [pid 5875] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5873] <... unlink resumed>) = 0 [pid 5992] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5991] <... prctl resumed>) = 0 [pid 5990] close(5 [pid 5873] umount2("./19/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5992] <... prctl resumed>) = 0 [pid 5875] <... openat resumed>) = 3 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5992] setpgid(0, 0 [pid 5991] setpgid(0, 0 [pid 5873] newfstatat(AT_FDCWD, "./19/cgroup.net", [pid 5992] <... setpgid resumed>) = 0 [pid 5991] <... setpgid resumed>) = 0 [pid 5990] <... close resumed>) = 0 [pid 5875] newfstatat(3, "", [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5992] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5991] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5990] close(6 [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 22 [pid 5992] <... symlink resumed>) = 0 [pid 5991] <... symlink resumed>) = 0 [pid 5873] unlink("./19/cgroup.net" [pid 5992] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5991] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5873] <... unlink resumed>) = 0 [pid 5991] <... symlink resumed>) = 0 [pid 5875] getdents64(3, [pid 5873] umount2("./19/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5992] <... symlink resumed>) = 0 [pid 5991] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5991] <... symlink resumed>) = 0 [pid 5990] <... close resumed>) = 0 [pid 5875] umount2("./20/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] newfstatat(AT_FDCWD, "./19/cgroup.cpu", [pid 5992] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5991] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5990] close(7 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5990] <... close resumed>) = 0 [pid 5875] newfstatat(AT_FDCWD, "./20/binderfs", [pid 5992] <... symlink resumed>) = 0 [pid 5991] <... openat resumed>) = 3 [pid 5990] close(8 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] unlink("./19/cgroup.cpu" [pid 5992] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5991] write(3, "1000", 4 [pid 5990] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] unlink("./20/binderfs" [pid 5873] <... unlink resumed>) = 0 [pid 5992] <... openat resumed>) = 3 [pid 5991] <... write resumed>) = 4 [pid 5990] close(9 [pid 5875] <... unlink resumed>) = 0 [pid 5990] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./20/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5990] close(10 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5990] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(AT_FDCWD, "./20/cgroup.net", [pid 5990] close(11 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5990] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] unlink("./20/cgroup.net" [pid 5990] close(12 [pid 5875] <... unlink resumed>) = 0 [pid 5992] write(3, "1000", 4 [pid 5991] close(3 [pid 5990] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./20/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] umount2("./19/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5992] <... write resumed>) = 4 [pid 5991] <... close resumed>) = 0 [pid 5990] close(13 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5992] close(3 [pid 5991] read(200, [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5991] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5873] newfstatat(AT_FDCWD, "./19/cgroup", [pid 5992] <... close resumed>) = 0 [pid 5991] symlink("/dev/binderfs", "./binderfs" [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5990] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(AT_FDCWD, "./20/cgroup.cpu", [pid 5992] read(200, [pid 5991] <... symlink resumed>) = 0 [pid 5990] close(14 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] unlink("./19/cgroup" [pid 5992] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5990] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] unlink("./20/cgroup.cpu" [pid 5992] symlink("/dev/binderfs", "./binderfs" [pid 5991] write(1, "executing program\n", 18 [pid 5990] close(15executing program [pid 5875] <... unlink resumed>) = 0 [pid 5873] <... unlink resumed>) = 0 [pid 5990] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./20/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5991] <... write resumed>) = 18 [pid 5990] close(16 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] getdents64(3, [pid 5990] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(AT_FDCWD, "./20/cgroup", [pid 5992] <... symlink resumed>) = 0 [pid 5991] perf_event_open( [pid 5990] close(17 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5990] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] unlink("./20/cgroup"executing program [pid 5992] write(1, "executing program\n", 18 [pid 5990] close(18 [pid 5875] <... unlink resumed>) = 0 [pid 5873] close(3 [pid 5990] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] getdents64(3, [pid 5990] close(19 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5990] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] close(3 [pid 5873] <... close resumed>) = 0 [pid 5992] <... write resumed>) = 18 [pid 5990] close(20 [pid 5875] <... close resumed>) = 0 [pid 5990] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] rmdir("./20" [pid 5873] rmdir("./19" [pid 5990] close(21 [pid 5875] <... rmdir resumed>) = 0 [pid 5990] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] mkdir("./21", 0777 [pid 5873] <... rmdir resumed>) = 0 [pid 5990] close(22 [pid 5873] mkdir("./20", 0777 [pid 5992] perf_event_open( [pid 5991] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5990] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... mkdir resumed>) = 0 [pid 5873] <... mkdir resumed>) = 0 [pid 5990] close(23 [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5992] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5991] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5990] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5993 attached [pid 5992] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5991] <... bpf resumed>) = 4 [pid 5990] close(24) = -1 EBADF (Bad file descriptor) [pid 5990] close(25) = -1 EBADF (Bad file descriptor) [pid 5990] close(26) = -1 EBADF (Bad file descriptor) [pid 5990] close(27) = -1 EBADF (Bad file descriptor) [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 23 [pid 5990] close(28) = -1 EBADF (Bad file descriptor) [pid 5990] close(29./strace-static-x86_64: Process 5994 attached ) = -1 EBADF (Bad file descriptor) [pid 5994] set_robust_list(0x5555947fb660, 24 [pid 5990] exit_group(0 [pid 5994] <... set_robust_list resumed>) = 0 [pid 5990] <... exit_group resumed>) = ? [pid 5994] chdir("./20") = 0 [pid 5993] set_robust_list(0x5555947fb660, 24 [pid 5992] <... bpf resumed>) = 4 [pid 5991] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5990] +++ exited with 0 +++ [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 22 [pid 5994] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5993] <... set_robust_list resumed>) = 0 [pid 5992] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5994] <... prctl resumed>) = 0 [pid 5994] setpgid(0, 0) = 0 [pid 5994] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5991] <... bpf resumed>) = 5 [pid 5994] <... symlink resumed>) = 0 [pid 5993] chdir("./21" [pid 5994] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5994] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5992] <... bpf resumed>) = 5 [pid 5993] <... chdir resumed>) = 0 [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5993] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5877] restart_syscall(<... resuming interrupted clone ...> [pid 5993] <... prctl resumed>) = 0 [pid 5994] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5993] setpgid(0, 0 [pid 5994] <... openat resumed>) = 3 [pid 5991] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5877] <... restart_syscall resumed>) = 0 [pid 5994] write(3, "1000", 4 [pid 5993] <... setpgid resumed>) = 0 [pid 5994] <... write resumed>) = 4 [pid 5994] close(3) = 0 [pid 5994] read(200, [pid 5993] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5994] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5991] <... bpf resumed>) = 6 [pid 5994] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5993] <... symlink resumed>) = 0 [pid 5991] perf_event_open( [pid 5993] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5877] umount2("./20", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5992] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) executing program [pid 5994] write(1, "executing program\n", 18) = 18 [pid 5994] perf_event_open({type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5991] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5994] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5993] <... symlink resumed>) = 0 [pid 5992] <... bpf resumed>) = 6 [pid 5991] close(3 [pid 5877] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5994] <... bpf resumed>) = 4 [pid 5993] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5994] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5993] <... symlink resumed>) = 0 [pid 5877] <... openat resumed>) = 3 [pid 5992] perf_event_open( [pid 5991] <... close resumed>) = 0 [pid 5877] newfstatat(3, "", [pid 5993] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5992] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5994] <... bpf resumed>) = 5 [pid 5993] <... openat resumed>) = 3 [pid 5991] close(4 [pid 5877] getdents64(3, [pid 5994] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5993] write(3, "1000", 4 [pid 5992] close(3 [pid 5991] <... close resumed>) = 0 [pid 5994] <... bpf resumed>) = 6 [pid 5993] <... write resumed>) = 4 [pid 5991] close(5 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5994] perf_event_open( [pid 5993] close(3 [pid 5877] umount2("./20/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5993] <... close resumed>) = 0 [pid 5994] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5993] read(200, [pid 5994] close(3 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5991] <... close resumed>) = 0 [pid 5993] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5993] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5994] <... close resumed>) = 0 [pid 5993] write(1, "executing program\n", 18 [pid 5991] close(6executing program [pid 5877] newfstatat(AT_FDCWD, "./20/binderfs", [pid 5994] close(4 [pid 5993] <... write resumed>) = 18 [pid 5991] <... close resumed>) = 0 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5993] perf_event_open( [pid 5991] close(7 [pid 5877] unlink("./20/binderfs" [pid 5994] <... close resumed>) = 0 [pid 5991] <... close resumed>) = 0 [pid 5877] <... unlink resumed>) = 0 [pid 5994] close(5 [pid 5991] close(8 [pid 5877] umount2("./20/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5991] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5991] close(9 [pid 5994] <... close resumed>) = 0 [pid 5877] newfstatat(AT_FDCWD, "./20/cgroup.net", [pid 5994] close(6 [pid 5991] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5991] close(10) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./20/cgroup.net" [pid 5991] close(11 [pid 5877] <... unlink resumed>) = 0 [pid 5991] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5994] <... close resumed>) = 0 [pid 5991] close(12 [pid 5877] umount2("./20/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5991] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5991] close(13 [pid 5994] close(7 [pid 5991] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./20/cgroup.cpu", [pid 5991] close(14 [pid 5994] <... close resumed>) = 0 [pid 5991] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5994] close(8 [pid 5991] close(15 [pid 5994] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5994] close(9 [pid 5991] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./20/cgroup.cpu" [pid 5994] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5991] close(16 [pid 5877] <... unlink resumed>) = 0 [pid 5994] close(10 [pid 5991] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./20/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5991] close(17 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5991] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./20/cgroup", [pid 5994] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5991] close(18 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5994] close(11 [pid 5991] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5994] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5994] close(12) = -1 EBADF (Bad file descriptor) [pid 5994] close(13) = -1 EBADF (Bad file descriptor) [pid 5994] close(14) = -1 EBADF (Bad file descriptor) [pid 5994] close(15) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./20/cgroup" [pid 5994] close(16 [pid 5991] close(19 [pid 5994] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5994] close(17) = -1 EBADF (Bad file descriptor) [pid 5994] close(18) = -1 EBADF (Bad file descriptor) [pid 5991] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5994] close(19 [pid 5991] close(20 [pid 5994] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5991] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5994] close(20 [pid 5877] <... unlink resumed>) = 0 [pid 5994] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5991] close(21 [pid 5994] close(21) = -1 EBADF (Bad file descriptor) [pid 5991] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5994] close(22 [pid 5991] close(22 [pid 5877] getdents64(3, [pid 5994] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5994] close(23) = -1 EBADF (Bad file descriptor) [pid 5991] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5994] close(24) = -1 EBADF (Bad file descriptor) [pid 5992] <... close resumed>) = 0 [pid 5991] close(23 [pid 5877] close(3 [pid 5991] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5994] close(25 [pid 5993] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5992] close(4 [pid 5991] close(24 [pid 5877] <... close resumed>) = 0 [pid 5994] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5994] close(26 [pid 5993] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5994] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5992] <... close resumed>) = 0 [pid 5991] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] rmdir("./20" [pid 5991] close(25 [pid 5994] close(27 [pid 5993] <... bpf resumed>) = 4 [pid 5991] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... rmdir resumed>) = 0 [pid 5994] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5994] close(28 [pid 5993] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5991] close(26 [pid 5877] mkdir("./21", 0777 [pid 5994] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5992] close(5 [pid 5991] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5992] <... close resumed>) = 0 [pid 5991] close(27 [pid 5877] <... mkdir resumed>) = 0 [pid 5991] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5992] close(6 [pid 5991] close(28 [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5994] close(29 [pid 5993] <... bpf resumed>) = 5 [pid 5991] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5994] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5993] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5994] exit_group(0) = ? ./strace-static-x86_64: Process 5995 attached [pid 5995] set_robust_list(0x5555947fb660, 24) = 0 [pid 5995] chdir("./21" [pid 5992] <... close resumed>) = 0 [pid 5991] close(29 [pid 5995] <... chdir resumed>) = 0 [pid 5991] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5995] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5993] <... bpf resumed>) = 6 [pid 5994] +++ exited with 0 +++ [pid 5991] exit_group(0 [pid 5995] <... prctl resumed>) = 0 [pid 5993] perf_event_open( [pid 5991] <... exit_group resumed>) = ? [pid 5995] setpgid(0, 0 [pid 5993] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5992] close(7 [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 23 [pid 5993] close(3 [pid 5995] <... setpgid resumed>) = 0 [pid 5995] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5992] <... close resumed>) = 0 [pid 5995] <... symlink resumed>) = 0 [pid 5992] close(8) = -1 EBADF (Bad file descriptor) [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5992] close(9) = -1 EBADF (Bad file descriptor) [pid 5873] umount2("./20", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5992] close(10 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5995] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5992] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5991] +++ exited with 0 +++ [pid 5873] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5995] <... symlink resumed>) = 0 [pid 5992] close(11 [pid 5995] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5992] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5873] <... openat resumed>) = 3 [pid 5995] <... symlink resumed>) = 0 [pid 5992] close(12 [pid 5876] umount2("./21", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5995] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5995] <... openat resumed>) = 3 [pid 5876] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5873] newfstatat(3, "", [pid 5876] <... openat resumed>) = 3 [pid 5995] write(3, "1000", 4 [pid 5993] <... close resumed>) = 0 [pid 5992] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(3, "", [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5995] <... write resumed>) = 4 [pid 5993] close(4 [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5873] getdents64(3, [pid 5995] close(3 [pid 5993] <... close resumed>) = 0 [pid 5876] getdents64(3, [pid 5995] <... close resumed>) = 0 [pid 5993] close(5 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5995] read(200, [pid 5993] <... close resumed>) = 0 [pid 5992] close(13 [pid 5876] umount2("./21/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5995] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5993] close(6 [pid 5992] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] umount2("./20/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5992] close(14 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5992] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] newfstatat(AT_FDCWD, "./20/binderfs", [pid 5992] close(15 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5992] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] unlink("./20/binderfs" [pid 5995] symlink("/dev/binderfs", "./binderfs" [pid 5993] <... close resumed>) = 0 [pid 5992] close(16 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... unlink resumed>) = 0 [pid 5992] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] umount2("./20/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5995] <... symlink resumed>) = 0 [pid 5992] close(17 [pid 5876] newfstatat(AT_FDCWD, "./21/binderfs", [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5993] close(7 [pid 5992] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] newfstatat(AT_FDCWD, "./20/cgroup.net", [pid 5992] close(18 [pid 5876] unlink("./21/binderfs" [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5995] write(1, "executing program\n", 18 [pid 5993] <... close resumed>) = 0 [pid 5992] <... close resumed>) = -1 EBADF (Bad file descriptor) executing program [pid 5873] unlink("./20/cgroup.net" [pid 5995] <... write resumed>) = 18 [pid 5993] close(8 [pid 5992] close(19 [pid 5876] <... unlink resumed>) = 0 [pid 5873] <... unlink resumed>) = 0 [pid 5992] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5995] perf_event_open( [pid 5993] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./21/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5993] close(9) = -1 EBADF (Bad file descriptor) [pid 5992] close(20 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] umount2("./20/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5992] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5992] close(21 [pid 5873] newfstatat(AT_FDCWD, "./20/cgroup.cpu", [pid 5992] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5993] close(10 [pid 5992] close(22 [pid 5876] newfstatat(AT_FDCWD, "./21/cgroup.net", [pid 5995] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5993] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5992] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] unlink("./20/cgroup.cpu" [pid 5995] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5993] close(11 [pid 5876] unlink("./21/cgroup.net" [pid 5995] <... bpf resumed>) = 4 [pid 5993] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5992] close(23 [pid 5876] <... unlink resumed>) = 0 [pid 5873] <... unlink resumed>) = 0 [pid 5995] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5993] close(12 [pid 5992] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./21/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] umount2("./20/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5993] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5992] close(24 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5995] <... bpf resumed>) = 5 [pid 5993] close(13 [pid 5992] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(AT_FDCWD, "./21/cgroup.cpu", [pid 5873] newfstatat(AT_FDCWD, "./20/cgroup", [pid 5992] close(25 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5993] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5992] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5993] close(14 [pid 5992] close(26 [pid 5873] unlink("./20/cgroup" [pid 5992] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... unlink resumed>) = 0 [pid 5992] close(27) = -1 EBADF (Bad file descriptor) [pid 5993] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5992] close(28 [pid 5873] getdents64(3, [pid 5992] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5993] close(15 [pid 5992] close(29 [pid 5993] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5995] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5993] close(16 [pid 5992] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] unlink("./21/cgroup.cpu" [pid 5873] close(3 [pid 5995] <... bpf resumed>) = 6 [pid 5993] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5992] exit_group(0 [pid 5993] close(17 [pid 5992] <... exit_group resumed>) = ? [pid 5876] <... unlink resumed>) = 0 [pid 5995] perf_event_open( [pid 5873] <... close resumed>) = 0 [pid 5993] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5995] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5993] close(18 [pid 5876] umount2("./21/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] rmdir("./20" [pid 5993] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5995] close(3 [pid 5993] close(19 [pid 5873] <... rmdir resumed>) = 0 [pid 5993] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5992] +++ exited with 0 +++ [pid 5876] newfstatat(AT_FDCWD, "./21/cgroup", [pid 5993] close(20) = -1 EBADF (Bad file descriptor) [pid 5873] mkdir("./21", 0777 [pid 5993] close(21 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5873] <... mkdir resumed>) = 0 [pid 5993] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] unlink("./21/cgroup" [pid 5874] restart_syscall(<... resuming interrupted clone ...> [pid 5993] close(22 [pid 5874] <... restart_syscall resumed>) = 0 [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5995] <... close resumed>) = 0 [pid 5993] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 5995] close(4 [pid 5993] close(23 [pid 5876] getdents64(3, ./strace-static-x86_64: Process 5996 attached [pid 5993] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5996] set_robust_list(0x5555947fb660, 24 [pid 5995] <... close resumed>) = 0 [pid 5993] close(24 [pid 5876] close(3 [pid 5874] umount2("./20", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 23 [pid 5996] <... set_robust_list resumed>) = 0 [pid 5995] close(5 [pid 5993] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... close resumed>) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5996] chdir("./21" [pid 5993] close(25 [pid 5876] rmdir("./21" [pid 5874] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5996] <... chdir resumed>) = 0 [pid 5993] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... rmdir resumed>) = 0 [pid 5874] <... openat resumed>) = 3 [pid 5996] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5874] newfstatat(3, "", [pid 5996] <... prctl resumed>) = 0 [pid 5876] mkdir("./22", 0777 [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5996] setpgid(0, 0 [pid 5995] <... close resumed>) = 0 [pid 5993] close(26 [pid 5996] <... setpgid resumed>) = 0 [pid 5995] close(6 [pid 5993] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... mkdir resumed>) = 0 [pid 5874] getdents64(3, [pid 5996] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5995] <... close resumed>) = 0 [pid 5993] close(27 [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5993] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5993] close(28 [pid 5874] umount2("./20/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5995] close(7 [pid 5993] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5995] <... close resumed>) = 0 [pid 5993] close(29 [pid 5874] newfstatat(AT_FDCWD, "./20/binderfs", ./strace-static-x86_64: Process 5997 attached [pid 5996] <... symlink resumed>) = 0 [pid 5995] close(8 [pid 5993] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5997] set_robust_list(0x5555947fb660, 24 [pid 5996] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5995] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5993] exit_group(0 [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 24 [pid 5874] unlink("./20/binderfs" [pid 5997] <... set_robust_list resumed>) = 0 [pid 5996] <... symlink resumed>) = 0 [pid 5995] close(9 [pid 5993] <... exit_group resumed>) = ? [pid 5995] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... unlink resumed>) = 0 [pid 5874] umount2("./20/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5874] newfstatat(AT_FDCWD, "./20/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5997] chdir("./22" [pid 5996] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5995] close(10 [pid 5993] +++ exited with 0 +++ [pid 5997] <... chdir resumed>) = 0 [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5874] unlink("./20/cgroup.net" [pid 5997] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5996] <... symlink resumed>) = 0 [pid 5995] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... unlink resumed>) = 0 [pid 5997] <... prctl resumed>) = 0 [pid 5996] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5995] close(11 [pid 5874] umount2("./20/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5997] setpgid(0, 0 [pid 5996] <... openat resumed>) = 3 [pid 5995] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5997] <... setpgid resumed>) = 0 [pid 5995] close(12 [pid 5996] write(3, "1000", 4 [pid 5995] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5997] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5875] umount2("./21", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] newfstatat(AT_FDCWD, "./20/cgroup.cpu", [pid 5997] <... symlink resumed>) = 0 [pid 5996] <... write resumed>) = 4 [pid 5995] close(13 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5997] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5996] close(3 [pid 5875] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5997] <... symlink resumed>) = 0 [pid 5996] <... close resumed>) = 0 [pid 5995] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... openat resumed>) = 3 [pid 5996] read(200, [pid 5995] close(14 [pid 5875] newfstatat(3, "", [pid 5996] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5995] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5874] unlink("./20/cgroup.cpu" [pid 5997] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5996] symlink("/dev/binderfs", "./binderfs" [pid 5995] close(15 [pid 5996] <... symlink resumed>) = 0 [pid 5995] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5997] <... symlink resumed>) = 0 [pid 5875] getdents64(3, [pid 5874] <... unlink resumed>) = 0 [pid 5997] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC executing program [pid 5996] write(1, "executing program\n", 18 [pid 5995] close(16 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5996] <... write resumed>) = 18 [pid 5995] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./21/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5996] perf_event_open( [pid 5995] close(17 [pid 5996] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5995] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] umount2("./20/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5997] <... openat resumed>) = 3 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5997] write(3, "1000", 4 [pid 5874] newfstatat(AT_FDCWD, "./20/cgroup", [pid 5997] <... write resumed>) = 4 [pid 5995] close(18 [pid 5875] newfstatat(AT_FDCWD, "./21/binderfs", [pid 5997] close(3 [pid 5996] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5995] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5997] <... close resumed>) = 0 [pid 5996] <... bpf resumed>) = 4 [pid 5995] close(19 [pid 5875] unlink("./21/binderfs" [pid 5874] unlink("./20/cgroup" [pid 5997] read(200, [pid 5996] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5995] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 [pid 5997] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5995] close(20 [pid 5874] <... unlink resumed>) = 0 [pid 5997] symlink("/dev/binderfs", "./binderfs" [pid 5875] umount2("./21/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5995] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5997] <... symlink resumed>) = 0 [pid 5995] close(21 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] getdents64(3, executing program [pid 5997] write(1, "executing program\n", 18 [pid 5996] <... bpf resumed>) = 5 [pid 5995] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(AT_FDCWD, "./21/cgroup.net", [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5997] <... write resumed>) = 18 [pid 5996] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5995] close(22 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] close(3 [pid 5997] perf_event_open( [pid 5996] <... bpf resumed>) = 6 [pid 5995] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5996] perf_event_open( [pid 5995] close(23 [pid 5875] unlink("./21/cgroup.net" [pid 5997] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5996] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5995] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... close resumed>) = 0 [pid 5997] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5996] close(3 [pid 5995] close(24 [pid 5875] <... unlink resumed>) = 0 [pid 5997] <... bpf resumed>) = 4 [pid 5996] <... close resumed>) = 0 [pid 5995] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] rmdir("./20" [pid 5997] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5996] close(4 [pid 5995] close(25 [pid 5875] umount2("./21/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5996] <... close resumed>) = 0 [pid 5995] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... rmdir resumed>) = 0 [pid 5996] close(5 [pid 5995] close(26 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5996] <... close resumed>) = 0 [pid 5995] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5996] close(6 [pid 5995] close(27 [pid 5875] newfstatat(AT_FDCWD, "./21/cgroup.cpu", [pid 5997] <... bpf resumed>) = 5 [pid 5996] <... close resumed>) = 0 [pid 5995] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] mkdir("./21", 0777 [pid 5996] close(7 [pid 5995] close(28 [pid 5875] unlink("./21/cgroup.cpu" [pid 5996] <... close resumed>) = 0 [pid 5995] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5996] close(8 [pid 5995] close(29 [pid 5997] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5874] <... mkdir resumed>) = 0 [pid 5996] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5995] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5996] close(9 [pid 5995] exit_group(0 [pid 5875] umount2("./21/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5996] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5995] <... exit_group resumed>) = ? [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5996] close(10 [pid 5875] newfstatat(AT_FDCWD, "./21/cgroup", [pid 5996] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5996] close(11 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5996] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5996] close(12 [pid 5875] unlink("./21/cgroup"./strace-static-x86_64: Process 5998 attached [pid 5998] set_robust_list(0x5555947fb660, 24 [pid 5996] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 23 [pid 5998] <... set_robust_list resumed>) = 0 [pid 5996] close(13 [pid 5875] getdents64(3, [pid 5998] chdir("./21" [pid 5997] <... bpf resumed>) = 6 [pid 5996] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5995] +++ exited with 0 +++ [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5996] close(14 [pid 5875] close(3 [pid 5998] <... chdir resumed>) = 0 [pid 5997] perf_event_open( [pid 5996] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5875] <... close resumed>) = 0 [pid 5998] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5996] close(15 [pid 5877] restart_syscall(<... resuming interrupted clone ...> [pid 5998] <... prctl resumed>) = 0 [pid 5996] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] rmdir("./21" [pid 5998] setpgid(0, 0 [pid 5996] close(16 [pid 5875] <... rmdir resumed>) = 0 [pid 5996] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] mkdir("./22", 0777 [pid 5996] close(17) = -1 EBADF (Bad file descriptor) [pid 5875] <... mkdir resumed>) = 0 [pid 5996] close(18) = -1 EBADF (Bad file descriptor) [pid 5996] close(19 [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5998] <... setpgid resumed>) = 0 [pid 5997] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5996] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5999 attached [pid 5998] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5996] close(20 [pid 5999] set_robust_list(0x5555947fb660, 24 [pid 5996] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 24 [pid 5999] <... set_robust_list resumed>) = 0 [pid 5999] chdir("./22" [pid 5996] close(21) = -1 EBADF (Bad file descriptor) [pid 5999] <... chdir resumed>) = 0 [pid 5996] close(22 [pid 5999] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5996] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5999] <... prctl resumed>) = 0 [pid 5996] close(23 [pid 5999] setpgid(0, 0 [pid 5996] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5999] <... setpgid resumed>) = 0 [pid 5996] close(24 [pid 5999] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5998] <... symlink resumed>) = 0 [pid 5877] <... restart_syscall resumed>) = 0 [pid 5997] close(3 [pid 5999] <... symlink resumed>) = 0 [pid 5996] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5996] close(25) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./21", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5999] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5998] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5996] close(26 [pid 5999] <... symlink resumed>) = 0 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5996] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5999] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5996] close(27 [pid 5999] <... symlink resumed>) = 0 [pid 5996] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5996] close(28 [pid 5999] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5998] <... symlink resumed>) = 0 [pid 5996] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5996] close(29) = -1 EBADF (Bad file descriptor) [pid 5877] <... openat resumed>) = 3 [pid 5998] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5877] newfstatat(3, "", [pid 5999] <... openat resumed>) = 3 [pid 5996] exit_group(0 [pid 5999] write(3, "1000", 4 [pid 5998] <... symlink resumed>) = 0 [pid 5996] <... exit_group resumed>) = ? [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5999] <... write resumed>) = 4 [pid 5998] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5996] +++ exited with 0 +++ [pid 5999] close(3 [pid 5877] getdents64(3, [pid 5999] <... close resumed>) = 0 [pid 5999] read(200, 0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5999] symlink("/dev/binderfs", "./binderfs" [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5999] <... symlink resumed>) = 0 [pid 5998] <... openat resumed>) = 3 [pid 5877] umount2("./21/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5998] write(3, "1000", 4 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5877] newfstatat(AT_FDCWD, "./21/binderfs", executing program [pid 5998] <... write resumed>) = 4 [pid 5999] write(1, "executing program\n", 18 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5998] close(3 [pid 5999] <... write resumed>) = 18 [pid 5877] unlink("./21/binderfs" [pid 5999] perf_event_open( [pid 5877] <... unlink resumed>) = 0 [pid 5998] <... close resumed>) = 0 [pid 5873] umount2("./21", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5998] read(200, [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5998] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5877] umount2("./21/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5998] symlink("/dev/binderfs", "./binderfs" [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] newfstatat(AT_FDCWD, "./21/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... openat resumed>) = 3 [pid 5877] unlink("./21/cgroup.net" [pid 5998] <... symlink resumed>) = 0 [pid 5877] <... unlink resumed>) = 0 [pid 5873] newfstatat(3, "", [pid 5999] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5997] <... close resumed>) = 0 [pid 5877] umount2("./21/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5999] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5998] write(1, "executing program\n", 18executing program [pid 5997] close(4 [pid 5877] newfstatat(AT_FDCWD, "./21/cgroup.cpu", [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5999] <... bpf resumed>) = 4 [pid 5998] <... write resumed>) = 18 [pid 5997] <... close resumed>) = 0 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5998] perf_event_open( [pid 5873] getdents64(3, [pid 5999] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5877] unlink("./21/cgroup.cpu" [pid 5998] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5997] close(5 [pid 5877] <... unlink resumed>) = 0 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5999] <... bpf resumed>) = 5 [pid 5998] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5997] <... close resumed>) = 0 [pid 5877] umount2("./21/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] umount2("./21/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5999] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5998] <... bpf resumed>) = 4 [pid 5997] close(6 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5999] <... bpf resumed>) = 6 [pid 5998] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5877] newfstatat(AT_FDCWD, "./21/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5877] unlink("./21/cgroup" [pid 5999] perf_event_open( [pid 5998] <... bpf resumed>) = 5 [pid 5873] newfstatat(AT_FDCWD, "./21/binderfs", [pid 5999] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5998] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5999] close(3 [pid 5877] <... unlink resumed>) = 0 [pid 5873] unlink("./21/binderfs" [pid 5999] <... close resumed>) = 0 [pid 5997] <... close resumed>) = 0 [pid 5877] getdents64(3, [pid 5873] <... unlink resumed>) = 0 [pid 5998] <... bpf resumed>) = 6 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5999] close(4 [pid 5997] close(7 [pid 5877] close(3 [pid 5873] umount2("./21/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5999] <... close resumed>) = 0 [pid 5998] perf_event_open( [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5999] close(5 [pid 5998] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5997] <... close resumed>) = 0 [pid 5877] <... close resumed>) = 0 [pid 5873] newfstatat(AT_FDCWD, "./21/cgroup.net", [pid 5999] <... close resumed>) = 0 [pid 5997] close(8 [pid 5877] rmdir("./21" [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5999] close(6 [pid 5998] close(3 [pid 5997] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] unlink("./21/cgroup.net" [pid 5997] close(9 [pid 5877] <... rmdir resumed>) = 0 [pid 5873] <... unlink resumed>) = 0 [pid 5997] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5997] close(10 [pid 5877] mkdir("./22", 0777 [pid 5997] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... mkdir resumed>) = 0 [pid 5999] <... close resumed>) = 0 [pid 5997] close(11) = -1 EBADF (Bad file descriptor) [pid 5997] close(12 [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5997] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] umount2("./21/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5997] close(13) = -1 EBADF (Bad file descriptor) [pid 5997] close(14) = -1 EBADF (Bad file descriptor) [pid 5997] close(15 [pid 5999] close(7 [pid 5997] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5997] close(16 [pid 5873] newfstatat(AT_FDCWD, "./21/cgroup.cpu", [pid 5997] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5997] close(17 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5999] <... close resumed>) = 0 [pid 5999] close(8 [pid 5997] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] unlink("./21/cgroup.cpu" [pid 5997] close(18) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 6000 attached [pid 5999] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5997] close(19 [pid 6000] set_robust_list(0x5555947fb660, 24 [pid 5999] close(9 [pid 5997] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... unlink resumed>) = 0 [pid 6000] <... set_robust_list resumed>) = 0 [pid 5997] close(20 [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 24 [pid 6000] chdir("./22" [pid 5999] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] umount2("./21/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5999] close(10 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5999] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] newfstatat(AT_FDCWD, "./21/cgroup", [pid 6000] <... chdir resumed>) = 0 [pid 5999] close(11 [pid 5997] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6000] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5999] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5997] close(21 [pid 5873] unlink("./21/cgroup" [pid 6000] <... prctl resumed>) = 0 [pid 5999] close(12 [pid 5997] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... unlink resumed>) = 0 [pid 6000] setpgid(0, 0 [pid 5999] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5997] close(22 [pid 6000] <... setpgid resumed>) = 0 [pid 5999] close(13 [pid 5873] getdents64(3, [pid 5997] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5999] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5999] close(14 [pid 5997] close(23 [pid 5873] close(3 [pid 5999] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5997] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5999] close(15 [pid 5873] <... close resumed>) = 0 [pid 5997] close(24 [pid 5999] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5997] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] rmdir("./21" [pid 5999] close(16 [pid 5873] <... rmdir resumed>) = 0 [pid 5999] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] mkdir("./22", 0777 [pid 5999] close(17) = -1 EBADF (Bad file descriptor) [pid 5873] <... mkdir resumed>) = 0 [pid 5999] close(18) = -1 EBADF (Bad file descriptor) [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6000] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5999] close(19 [pid 5997] close(25./strace-static-x86_64: Process 6001 attached [pid 6000] <... symlink resumed>) = 0 [pid 5999] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5997] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6000] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5997] close(26 [pid 6001] set_robust_list(0x5555947fb660, 24 [pid 5999] close(20 [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 24 [pid 6001] <... set_robust_list resumed>) = 0 [pid 6000] <... symlink resumed>) = 0 [pid 5997] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6001] chdir("./22" [pid 6000] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5999] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5997] close(27 [pid 6001] <... chdir resumed>) = 0 [pid 6000] <... symlink resumed>) = 0 [pid 5999] close(21 [pid 5998] <... close resumed>) = 0 [pid 5997] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6001] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6000] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5999] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5998] close(4 [pid 5997] close(28 [pid 6001] <... prctl resumed>) = 0 [pid 6000] <... openat resumed>) = 3 [pid 5999] close(22 [pid 5998] <... close resumed>) = 0 [pid 5997] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6001] setpgid(0, 0 [pid 6000] write(3, "1000", 4 [pid 5999] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5998] close(5 [pid 5997] close(29 [pid 6001] <... setpgid resumed>) = 0 [pid 6000] <... write resumed>) = 4 [pid 5999] close(23 [pid 5998] <... close resumed>) = 0 [pid 5997] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6000] close(3 [pid 5999] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5999] close(24 [pid 5998] close(6 [pid 5997] exit_group(0 [pid 5999] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6001] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 6000] <... close resumed>) = 0 [pid 5997] <... exit_group resumed>) = ? [pid 5999] close(25 [pid 5998] <... close resumed>) = 0 [pid 5999] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5999] close(26 [pid 5998] close(7 [pid 5999] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5998] <... close resumed>) = 0 [pid 5999] close(27) = -1 EBADF (Bad file descriptor) [pid 5997] +++ exited with 0 +++ [pid 5998] close(8 [pid 5999] close(28 [pid 5998] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=24, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 6001] <... symlink resumed>) = 0 [pid 6000] read(200, [pid 5999] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5998] close(9 [pid 5876] restart_syscall(<... resuming interrupted clone ...> [pid 5999] close(29 [pid 5998] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5999] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5998] close(10 [pid 5999] exit_group(0 [pid 6001] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 6000] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5998] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... restart_syscall resumed>) = 0 [pid 6000] symlink("/dev/binderfs", "./binderfs" [pid 5999] <... exit_group resumed>) = ? [pid 6001] <... symlink resumed>) = 0 [pid 5998] close(11 [pid 6000] <... symlink resumed>) = 0 [pid 6001] symlink("/syzcgroup/net/syz0", "./cgroup.net"executing program [pid 6000] write(1, "executing program\n", 18 [pid 5998] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6000] <... write resumed>) = 18 [pid 6000] perf_event_open( [pid 5999] +++ exited with 0 +++ [pid 6001] <... symlink resumed>) = 0 [pid 6001] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6000] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5998] close(12 [pid 5876] umount2("./22", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=24, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6001] <... openat resumed>) = 3 [pid 5998] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] umount2("./22", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6001] write(3, "1000", 4 [pid 5876] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6001] <... write resumed>) = 4 [pid 5998] close(13 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6000] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5998] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... openat resumed>) = 3 [pid 5875] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6001] close(3 [pid 6000] <... bpf resumed>) = 4 [pid 5998] close(14 [pid 5876] newfstatat(3, "", [pid 5875] <... openat resumed>) = 3 [pid 6001] <... close resumed>) = 0 [pid 6000] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5998] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5875] newfstatat(3, "", [pid 6001] read(200, 0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5998] close(15 [pid 5876] getdents64(3, [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6001] symlink("/dev/binderfs", "./binderfs" [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6001] <... symlink resumed>) = 0 [pid 6000] <... bpf resumed>) = 5 [pid 5998] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] getdents64(3, [pid 6001] write(1, "executing program\n", 18 [pid 5998] close(16 executing program [pid 5876] umount2("./22/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6001] <... write resumed>) = 18 [pid 6000] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5998] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] umount2("./22/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6001] perf_event_open( [pid 5998] close(17 [pid 5876] newfstatat(AT_FDCWD, "./22/binderfs", [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6001] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6000] <... bpf resumed>) = 6 [pid 5998] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6000] perf_event_open( [pid 5998] close(18 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] newfstatat(AT_FDCWD, "./22/binderfs", [pid 5998] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6000] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5876] unlink("./22/binderfs" [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5998] close(19 [pid 5876] <... unlink resumed>) = 0 [pid 6001] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5998] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./22/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] unlink("./22/binderfs" [pid 6000] close(3 [pid 5998] close(20 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... unlink resumed>) = 0 [pid 6001] <... bpf resumed>) = 4 [pid 5998] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(AT_FDCWD, "./22/cgroup.net", [pid 5875] umount2("./22/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5998] close(21 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5998] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] unlink("./22/cgroup.net" [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5998] close(22 [pid 5876] <... unlink resumed>) = 0 [pid 5998] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./22/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] newfstatat(AT_FDCWD, "./22/cgroup.net", [pid 5998] close(23) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5998] close(24 [pid 5876] newfstatat(AT_FDCWD, "./22/cgroup.cpu", [pid 5998] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] unlink("./22/cgroup.net" [pid 5998] close(25 [pid 5876] unlink("./22/cgroup.cpu" [pid 5875] <... unlink resumed>) = 0 [pid 5998] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 5998] close(26 [pid 5875] umount2("./22/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5998] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./22/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6001] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5998] close(27 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6000] <... close resumed>) = 0 [pid 5998] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(AT_FDCWD, "./22/cgroup", [pid 5875] newfstatat(AT_FDCWD, "./22/cgroup.cpu", [pid 6001] <... bpf resumed>) = 5 [pid 6000] close(4 [pid 6001] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5998] close(28 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] unlink("./22/cgroup.cpu" [pid 5998] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6001] <... bpf resumed>) = 6 [pid 5998] close(29 [pid 5875] <... unlink resumed>) = 0 [pid 5876] unlink("./22/cgroup" [pid 6001] perf_event_open( [pid 6000] <... close resumed>) = 0 [pid 5998] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./22/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5998] exit_group(0 [pid 5876] <... unlink resumed>) = 0 [pid 6000] close(5 [pid 5876] getdents64(3, 0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6001] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6000] <... close resumed>) = 0 [pid 5998] <... exit_group resumed>) = ? [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] close(3 [pid 6001] close(3 [pid 6000] close(6 [pid 5998] +++ exited with 0 +++ [pid 5876] <... close resumed>) = 0 [pid 5875] newfstatat(AT_FDCWD, "./22/cgroup", [pid 5876] rmdir("./22" [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] <... rmdir resumed>) = 0 [pid 5875] unlink("./22/cgroup" [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 6000] <... close resumed>) = 0 [pid 5876] mkdir("./23", 0777 [pid 5875] <... unlink resumed>) = 0 [pid 5874] restart_syscall(<... resuming interrupted clone ...> [pid 6000] close(7 [pid 5876] <... mkdir resumed>) = 0 [pid 5875] getdents64(3, [pid 6000] <... close resumed>) = 0 [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6000] close(8 [pid 5875] close(3 [pid 5874] <... restart_syscall resumed>) = 0 [pid 6000] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... close resumed>) = 0 [pid 6000] close(9 [pid 5875] rmdir("./22" [pid 6000] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6000] close(10) = -1 EBADF (Bad file descriptor) [pid 5875] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 6002 attached [pid 6000] close(11 [pid 5875] mkdir("./23", 0777 [pid 5874] umount2("./21", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6000] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 25 [pid 6002] set_robust_list(0x5555947fb660, 24 [pid 6000] close(12 [pid 5875] <... mkdir resumed>) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6002] <... set_robust_list resumed>) = 0 [pid 6000] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5874] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6002] chdir("./23" [pid 6000] close(13 [pid 6002] <... chdir resumed>) = 0 [pid 5874] <... openat resumed>) = 3 [pid 6002] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6000] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] newfstatat(3, "", [pid 6002] <... prctl resumed>) = 0 [pid 6000] close(14 [pid 6002] setpgid(0, 0 [pid 6000] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6002] <... setpgid resumed>) = 0 [pid 6000] close(15./strace-static-x86_64: Process 6003 attached [pid 6002] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 6000] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 25 [pid 6003] set_robust_list(0x5555947fb660, 24 [pid 6000] close(16 [pid 5874] getdents64(3, [pid 6000] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6003] <... set_robust_list resumed>) = 0 [pid 6002] <... symlink resumed>) = 0 [pid 6001] <... close resumed>) = 0 [pid 6000] close(17 [pid 5874] umount2("./21/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6003] chdir("./23" [pid 6002] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 6001] close(4 [pid 6000] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6003] <... chdir resumed>) = 0 [pid 6001] <... close resumed>) = 0 [pid 6000] close(18 [pid 5874] newfstatat(AT_FDCWD, "./21/binderfs", [pid 6003] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6002] <... symlink resumed>) = 0 [pid 6001] close(5 [pid 6000] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6003] <... prctl resumed>) = 0 [pid 6003] setpgid(0, 0 [pid 6002] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 6003] <... setpgid resumed>) = 0 [pid 6001] <... close resumed>) = 0 [pid 6000] close(19 [pid 6002] <... symlink resumed>) = 0 [pid 6000] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6001] close(6 [pid 6003] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6001] <... close resumed>) = 0 [pid 6002] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6000] close(20) = -1 EBADF (Bad file descriptor) [pid 6003] <... symlink resumed>) = 0 [pid 6002] <... openat resumed>) = 3 [pid 6001] close(7 [pid 6000] close(21 [pid 5874] unlink("./21/binderfs") = 0 [pid 6003] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 6002] write(3, "1000", 4 [pid 6000] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./21/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6003] <... symlink resumed>) = 0 [pid 6002] <... write resumed>) = 4 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6000] close(22 [pid 5874] newfstatat(AT_FDCWD, "./21/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] unlink("./21/cgroup.net") = 0 [pid 5874] umount2("./21/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6003] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 6002] close(3 [pid 6001] <... close resumed>) = 0 [pid 6000] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6001] close(8 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6003] <... symlink resumed>) = 0 [pid 6002] <... close resumed>) = 0 [pid 6001] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6000] close(23 [pid 5874] newfstatat(AT_FDCWD, "./21/cgroup.cpu", [pid 6003] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6002] read(200, [pid 6001] close(9 [pid 6000] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6002] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6001] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6001] close(10) = -1 EBADF (Bad file descriptor) [pid 6003] <... openat resumed>) = 3 [pid 6001] close(11) = -1 EBADF (Bad file descriptor) [pid 6001] close(12) = -1 EBADF (Bad file descriptor) [pid 6001] close(13) = -1 EBADF (Bad file descriptor) [pid 6001] close(14) = -1 EBADF (Bad file descriptor) [pid 6001] close(15) = -1 EBADF (Bad file descriptor) [pid 6000] close(24 [pid 5874] unlink("./21/cgroup.cpu" [pid 6002] symlink("/dev/binderfs", "./binderfs" [pid 6003] write(3, "1000", 4 [pid 6001] close(16 [pid 6000] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6001] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6001] close(17) = -1 EBADF (Bad file descriptor) [pid 6001] close(18) = -1 EBADF (Bad file descriptor) [pid 6001] close(19) = -1 EBADF (Bad file descriptor) [pid 6001] close(20) = -1 EBADF (Bad file descriptor) [pid 6001] close(21 [pid 6002] <... symlink resumed>) = 0 [pid 6001] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6001] close(22 [pid 6000] close(25 [pid 6001] <... close resumed>) = -1 EBADF (Bad file descriptor) executing program [pid 5874] <... unlink resumed>) = 0 [pid 6003] <... write resumed>) = 4 [pid 6002] write(1, "executing program\n", 18 [pid 6001] close(23 [pid 6000] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6003] close(3 [pid 6002] <... write resumed>) = 18 [pid 6001] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6000] close(26 [pid 5874] umount2("./21/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6001] close(24 [pid 6000] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6003] <... close resumed>) = 0 [pid 6001] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6000] close(27 [pid 6001] close(25 [pid 6003] read(200, [pid 6001] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6000] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6001] close(26) = -1 EBADF (Bad file descriptor) [pid 6001] close(27) = -1 EBADF (Bad file descriptor) [pid 6001] close(28 [pid 6002] perf_event_open( [pid 6001] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6000] close(28 [pid 5874] newfstatat(AT_FDCWD, "./21/cgroup", [pid 6003] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6001] close(29 [pid 6000] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6001] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6003] symlink("/dev/binderfs", "./binderfs" [pid 6001] exit_group(0 [pid 6000] close(29 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6001] <... exit_group resumed>) = ? [pid 6003] <... symlink resumed>) = 0 [pid 6002] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6000] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] unlink("./21/cgroup" [pid 6001] +++ exited with 0 +++ [pid 6003] write(1, "executing program\n", 18 [pid 6002] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5874] <... unlink resumed>) = 0 [pid 6000] exit_group(0 [pid 5874] getdents64(3, [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=24, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5873] restart_syscall(<... resuming interrupted clone ...> [pid 6000] <... exit_group resumed>) = ? [pid 5873] <... restart_syscall resumed>) = 0 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6003] <... write resumed>) = 18 [pid 6003] perf_event_open(executing program {type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6002] <... bpf resumed>) = 4 [pid 6003] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80) = 4 [pid 6003] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6002] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6000] +++ exited with 0 +++ [pid 5874] close(3 [pid 5873] umount2("./22", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6003] <... bpf resumed>) = 5 [pid 6002] <... bpf resumed>) = 5 [pid 5874] <... close resumed>) = 0 [pid 5874] rmdir("./21") = 0 [pid 6003] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6002] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5874] mkdir("./22", 0777 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=24, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5873] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5877] restart_syscall(<... resuming interrupted clone ...> [pid 6003] <... bpf resumed>) = 6 [pid 5877] <... restart_syscall resumed>) = 0 [pid 5873] <... openat resumed>) = 3 [pid 6003] perf_event_open( [pid 6002] <... bpf resumed>) = 6 [pid 5874] <... mkdir resumed>) = 0 [pid 5873] newfstatat(3, "", [pid 6003] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6002] perf_event_open( [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5873] getdents64(3, 0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6003] close(3 [pid 5873] umount2("./22/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5873] newfstatat(AT_FDCWD, "./22/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] unlink("./22/binderfs") = 0 [pid 5873] umount2("./22/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 6004 attached [pid 6003] <... close resumed>) = 0 [pid 6002] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5877] umount2("./22", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6004] set_robust_list(0x5555947fb660, 24 [pid 6003] close(4 [pid 6002] close(3 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6003] <... close resumed>) = 0 [pid 5877] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 24 [pid 5873] newfstatat(AT_FDCWD, "./22/cgroup.net", [pid 6004] <... set_robust_list resumed>) = 0 [pid 6003] close(5 [pid 5877] <... openat resumed>) = 3 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6003] <... close resumed>) = 0 [pid 5877] newfstatat(3, "", [pid 5873] unlink("./22/cgroup.net" [pid 6004] chdir("./22" [pid 6003] close(6 [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5873] <... unlink resumed>) = 0 [pid 6004] <... chdir resumed>) = 0 [pid 6004] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5877] getdents64(3, [pid 5873] umount2("./22/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6004] <... prctl resumed>) = 0 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] umount2("./22/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] newfstatat(AT_FDCWD, "./22/cgroup.cpu", [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] newfstatat(AT_FDCWD, "./22/binderfs", [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] unlink("./22/cgroup.cpu") = 0 [pid 5877] unlink("./22/binderfs") = 0 [pid 5877] umount2("./22/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] umount2("./22/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] newfstatat(AT_FDCWD, "./22/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] newfstatat(AT_FDCWD, "./22/cgroup", [pid 5877] unlink("./22/cgroup.net" [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5877] <... unlink resumed>) = 0 [pid 5873] unlink("./22/cgroup" [pid 5877] umount2("./22/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... unlink resumed>) = 0 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] newfstatat(AT_FDCWD, "./22/cgroup.cpu", [pid 5873] getdents64(3, [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5877] unlink("./22/cgroup.cpu" [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5877] <... unlink resumed>) = 0 [pid 5877] umount2("./22/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] close(3 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... close resumed>) = 0 [pid 5877] newfstatat(AT_FDCWD, "./22/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] rmdir("./22" [pid 5877] unlink("./22/cgroup" [pid 5873] <... rmdir resumed>) = 0 [pid 5877] <... unlink resumed>) = 0 [pid 5873] mkdir("./23", 0777 [pid 6004] setpgid(0, 0 [pid 5877] getdents64(3, [pid 5873] <... mkdir resumed>) = 0 [pid 6004] <... setpgid resumed>) = 0 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6004] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5877] close(3) = 0 [pid 5877] rmdir("./22") = 0 ./strace-static-x86_64: Process 6005 attached [pid 6004] <... symlink resumed>) = 0 [pid 6003] <... close resumed>) = 0 [pid 6002] <... close resumed>) = 0 [pid 5877] mkdir("./23", 0777 [pid 6003] close(7 [pid 6005] set_robust_list(0x5555947fb660, 24 [pid 6004] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 6003] <... close resumed>) = 0 [pid 6002] close(4 [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 25 [pid 6005] <... set_robust_list resumed>) = 0 [pid 6004] <... symlink resumed>) = 0 [pid 5877] <... mkdir resumed>) = 0 [pid 6003] close(8 [pid 6002] <... close resumed>) = 0 [pid 6004] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 6005] chdir("./23" [pid 6003] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6002] close(5 [pid 6004] <... symlink resumed>) = 0 [pid 6003] close(9 [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6005] <... chdir resumed>) = 0 [pid 6004] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6003] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6002] <... close resumed>) = 0 [pid 6003] close(10) = -1 EBADF (Bad file descriptor) [pid 6002] close(6 [pid 6003] close(11./strace-static-x86_64: Process 6006 attached [pid 6005] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6003] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6006] set_robust_list(0x5555947fb660, 24) = 0 [pid 6004] <... openat resumed>) = 3 [pid 6003] close(12 [pid 6006] chdir("./23" [pid 6005] <... prctl resumed>) = 0 [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 25 [pid 6006] <... chdir resumed>) = 0 [pid 6005] setpgid(0, 0 [pid 6003] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6002] <... close resumed>) = 0 [pid 6006] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6005] <... setpgid resumed>) = 0 [pid 6004] write(3, "1000", 4 [pid 6003] close(13 [pid 6006] <... prctl resumed>) = 0 [pid 6003] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6002] close(7 [pid 6006] setpgid(0, 0 [pid 6005] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 6004] <... write resumed>) = 4 [pid 6006] <... setpgid resumed>) = 0 [pid 6005] <... symlink resumed>) = 0 [pid 6004] close(3 [pid 6003] close(14 [pid 6002] <... close resumed>) = 0 [pid 6006] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 6005] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 6004] <... close resumed>) = 0 [pid 6004] read(200, [pid 6006] <... symlink resumed>) = 0 [pid 6005] <... symlink resumed>) = 0 [pid 6004] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6003] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6002] close(8executing program [pid 6006] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 6004] symlink("/dev/binderfs", "./binderfs" [pid 6003] close(15 [pid 6002] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6006] <... symlink resumed>) = 0 [pid 6005] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 6003] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6002] close(9 [pid 6006] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 6004] <... symlink resumed>) = 0 [pid 6003] close(16 [pid 6002] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6005] <... symlink resumed>) = 0 [pid 6004] write(1, "executing program\n", 18 [pid 6005] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6004] <... write resumed>) = 18 [pid 6006] <... symlink resumed>) = 0 [pid 6003] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6002] close(10 [pid 6006] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6004] perf_event_open( [pid 6003] close(17 [pid 6002] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6006] <... openat resumed>) = 3 [pid 6003] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6002] close(11 [pid 6006] write(3, "1000", 4 [pid 6003] close(18 [pid 6002] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6006] <... write resumed>) = 4 [pid 6003] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6002] close(12 [pid 6006] close(3 [pid 6003] close(19 [pid 6002] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6006] <... close resumed>) = 0 [pid 6003] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6002] close(13 [pid 6006] read(200, [pid 6003] close(20 [pid 6002] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6006] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6003] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6002] close(14 [pid 6006] symlink("/dev/binderfs", "./binderfs" [pid 6005] <... openat resumed>) = 3 [pid 6004] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6003] close(21 [pid 6002] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6006] <... symlink resumed>) = 0 [pid 6005] write(3, "1000", 4 executing program [pid 6004] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6003] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6002] close(15 [pid 6006] write(1, "executing program\n", 18 [pid 6005] <... write resumed>) = 4 [pid 6003] close(22 [pid 6006] <... write resumed>) = 18 [pid 6003] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6002] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6006] perf_event_open( [pid 6004] <... bpf resumed>) = 4 [pid 6003] close(23 [pid 6002] close(16 [pid 6006] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6005] close(3 [pid 6003] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6004] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6006] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6005] <... close resumed>) = 0 [pid 6003] close(24 [pid 6002] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6006] <... bpf resumed>) = 4 [pid 6003] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6002] close(17 [pid 6006] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6003] close(25 [pid 6002] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6006] <... bpf resumed>) = 5 [pid 6005] read(200, [pid 6004] <... bpf resumed>) = 5 [pid 6003] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6002] close(18 [pid 6006] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6005] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6002] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6006] <... bpf resumed>) = 6 [pid 6005] symlink("/dev/binderfs", "./binderfs" [pid 6004] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6003] close(26 [pid 6006] perf_event_open( [pid 6002] close(19 [pid 6006] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6005] <... symlink resumed>) = 0 [pid 6002] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6006] close(3executing program [pid 6005] write(1, "executing program\n", 18 [pid 6004] <... bpf resumed>) = 6 [pid 6003] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6002] close(20 [pid 6006] <... close resumed>) = 0 [pid 6005] <... write resumed>) = 18 [pid 6003] close(27 [pid 6002] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6006] close(4 [pid 6002] close(21 [pid 6005] perf_event_open( [pid 6003] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6002] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6003] close(28 [pid 6006] <... close resumed>) = 0 [pid 6002] close(22 [pid 6006] close(5 [pid 6005] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6004] perf_event_open( [pid 6002] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6006] <... close resumed>) = 0 [pid 6005] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6003] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6002] close(23 [pid 6006] close(6 [pid 6004] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6002] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6006] <... close resumed>) = 0 [pid 6005] <... bpf resumed>) = 4 [pid 6004] close(3 [pid 6003] close(29 [pid 6002] close(24 [pid 6003] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6002] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6006] close(7 [pid 6002] close(25 [pid 6006] <... close resumed>) = 0 [pid 6003] exit_group(0 [pid 6002] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6006] close(8 [pid 6003] <... exit_group resumed>) = ? [pid 6002] close(26 [pid 6006] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6005] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6002] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6006] close(9 [pid 6004] <... close resumed>) = 0 [pid 6002] close(27 [pid 6006] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6002] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6006] close(10 [pid 6002] close(28 [pid 6006] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6002] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6006] close(11 [pid 6002] close(29 [pid 6006] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6002] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6006] close(12 [pid 6002] exit_group(0 [pid 6006] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6002] <... exit_group resumed>) = ? [pid 6006] close(13) = -1 EBADF (Bad file descriptor) [pid 6004] close(4 [pid 6002] +++ exited with 0 +++ [pid 6006] close(14) = -1 EBADF (Bad file descriptor) [pid 6006] close(15) = -1 EBADF (Bad file descriptor) [pid 6006] close(16) = -1 EBADF (Bad file descriptor) [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=25, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6006] close(17) = -1 EBADF (Bad file descriptor) [pid 6006] close(18 [pid 6004] <... close resumed>) = 0 [pid 6006] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6006] close(19) = -1 EBADF (Bad file descriptor) [pid 6004] close(5 [pid 6006] close(20 [pid 5876] umount2("./23", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6006] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6006] close(21) = -1 EBADF (Bad file descriptor) [pid 6006] close(22) = -1 EBADF (Bad file descriptor) [pid 6006] close(23) = -1 EBADF (Bad file descriptor) [pid 6006] close(24) = -1 EBADF (Bad file descriptor) [pid 6003] +++ exited with 0 +++ [pid 6006] close(25) = -1 EBADF (Bad file descriptor) [pid 6006] close(26) = -1 EBADF (Bad file descriptor) [pid 6006] close(27) = -1 EBADF (Bad file descriptor) [pid 6006] close(28) = -1 EBADF (Bad file descriptor) [pid 6006] close(29) = -1 EBADF (Bad file descriptor) [pid 6006] exit_group(0) = ? [pid 6005] <... bpf resumed>) = 5 [pid 6004] <... close resumed>) = 0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=25, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6004] close(6 [pid 6006] +++ exited with 0 +++ [pid 6005] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5876] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6005] <... bpf resumed>) = 6 [pid 5876] <... openat resumed>) = 3 [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=25, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5876] newfstatat(3, "", [pid 5875] umount2("./23", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6005] perf_event_open( [pid 5877] umount2("./23", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6005] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] getdents64(3, [pid 5875] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6005] close(3 [pid 5877] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5875] <... openat resumed>) = 3 [pid 6004] <... close resumed>) = 0 [pid 5877] <... openat resumed>) = 3 [pid 5876] umount2("./23/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] newfstatat(3, "", [pid 6004] close(7 [pid 5877] newfstatat(3, "", [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5876] newfstatat(AT_FDCWD, "./23/binderfs", [pid 5875] getdents64(3, [pid 5877] getdents64(3, [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6004] <... close resumed>) = 0 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5876] unlink("./23/binderfs" [pid 5875] umount2("./23/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6004] close(8 [pid 5877] umount2("./23/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] <... unlink resumed>) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6004] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6004] close(9 [pid 5877] newfstatat(AT_FDCWD, "./23/binderfs", [pid 5876] umount2("./23/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] newfstatat(AT_FDCWD, "./23/binderfs", [pid 6004] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6004] close(10) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./23/binderfs" [pid 5876] newfstatat(AT_FDCWD, "./23/cgroup.net", [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6004] close(11 [pid 5877] <... unlink resumed>) = 0 [pid 6004] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6004] close(12 [pid 5875] unlink("./23/binderfs" [pid 6004] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6004] close(13) = -1 EBADF (Bad file descriptor) [pid 6004] close(14) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./23/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6004] close(15 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] unlink("./23/cgroup.net" [pid 5875] <... unlink resumed>) = 0 [pid 6004] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./23/cgroup.net", [pid 6004] close(16 [pid 5875] umount2("./23/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6004] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] <... unlink resumed>) = 0 [pid 6004] close(17) = -1 EBADF (Bad file descriptor) [pid 6005] <... close resumed>) = 0 [pid 5877] unlink("./23/cgroup.net" [pid 5876] umount2("./23/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6004] close(18 [pid 5877] <... unlink resumed>) = 0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] newfstatat(AT_FDCWD, "./23/cgroup.net", [pid 6005] close(4 [pid 6004] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./23/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] newfstatat(AT_FDCWD, "./23/cgroup.cpu", [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6005] <... close resumed>) = 0 [pid 6004] close(19 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] unlink("./23/cgroup.net" [pid 6005] close(5 [pid 6004] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./23/cgroup.cpu", [pid 5876] unlink("./23/cgroup.cpu" [pid 6005] <... close resumed>) = 0 [pid 6004] close(20 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] <... unlink resumed>) = 0 [pid 6005] close(6 [pid 6004] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./23/cgroup.cpu" [pid 5875] umount2("./23/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6004] close(21 [pid 5877] <... unlink resumed>) = 0 [pid 5876] <... unlink resumed>) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6004] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./23/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] newfstatat(AT_FDCWD, "./23/cgroup.cpu", [pid 6004] close(22 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6004] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./23/cgroup", [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6004] close(23 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6005] <... close resumed>) = 0 [pid 6004] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./23/cgroup" [pid 5876] umount2("./23/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] unlink("./23/cgroup.cpu" [pid 6005] close(7 [pid 6004] close(24 [pid 5877] <... unlink resumed>) = 0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... unlink resumed>) = 0 [pid 6005] <... close resumed>) = 0 [pid 6004] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] getdents64(3, [pid 5876] newfstatat(AT_FDCWD, "./23/cgroup", [pid 6005] close(8 [pid 6004] close(25 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] umount2("./23/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6005] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6004] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] close(3 [pid 5876] unlink("./23/cgroup" [pid 6005] close(9 [pid 5876] <... unlink resumed>) = 0 [pid 6005] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] getdents64(3, [pid 6005] close(10 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6005] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] close(3 [pid 6005] close(11 [pid 5876] <... close resumed>) = 0 [pid 6005] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] rmdir("./23" [pid 6005] close(12) = -1 EBADF (Bad file descriptor) [pid 6004] close(26 [pid 5876] <... rmdir resumed>) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] <... close resumed>) = 0 [pid 6005] close(13 [pid 6004] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(AT_FDCWD, "./23/cgroup", [pid 5877] rmdir("./23" [pid 6005] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] mkdir("./24", 0777 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6005] close(14 [pid 6004] close(27 [pid 5877] <... rmdir resumed>) = 0 [pid 5876] <... mkdir resumed>) = 0 [pid 5875] unlink("./23/cgroup" [pid 6005] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6004] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] mkdir("./24", 0777 [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6005] close(15 [pid 6004] close(28 [pid 5877] <... mkdir resumed>) = 0 [pid 5875] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 6007 attached [pid 6005] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6004] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5875] getdents64(3, [pid 6007] set_robust_list(0x5555947fb660, 24 [pid 6005] close(16 [pid 6004] close(29 [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 26 [pid 6007] <... set_robust_list resumed>) = 0 [pid 6005] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6007] chdir("./24" [pid 6005] close(17) = -1 EBADF (Bad file descriptor) [pid 6005] close(18 [pid 6007] <... chdir resumed>) = 0 [pid 6005] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6007] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6005] close(19 [pid 6007] <... prctl resumed>) = 0 [pid 6005] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6007] setpgid(0, 0) = 0 [pid 6005] close(20 [pid 6007] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 6004] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6005] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6005] close(21) = -1 EBADF (Bad file descriptor) [pid 6005] close(22 [pid 6007] <... symlink resumed>) = 0 ./strace-static-x86_64: Process 6008 attached [pid 6005] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6004] exit_group(0 [pid 5875] close(3 [pid 6008] set_robust_list(0x5555947fb660, 24 [pid 6007] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 6005] close(23 [pid 6004] <... exit_group resumed>) = ? [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 26 [pid 6008] <... set_robust_list resumed>) = 0 [pid 6007] <... symlink resumed>) = 0 [pid 6005] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... close resumed>) = 0 [pid 6008] chdir("./24" [pid 6005] close(24 [pid 6007] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 6008] <... chdir resumed>) = 0 [pid 6007] <... symlink resumed>) = 0 [pid 6005] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] rmdir("./23" [pid 6008] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6007] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6005] close(25 [pid 5875] <... rmdir resumed>) = 0 [pid 6008] <... prctl resumed>) = 0 [pid 6004] +++ exited with 0 +++ [pid 6005] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] mkdir("./24", 0777 [pid 6005] close(26 [pid 6008] setpgid(0, 0 [pid 5875] <... mkdir resumed>) = 0 [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=24, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5874] restart_syscall(<... resuming interrupted clone ...> [pid 6008] <... setpgid resumed>) = 0 [pid 6007] <... openat resumed>) = 3 [pid 6005] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6008] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 6005] close(27 [pid 6007] write(3, "1000", 4) = 4 ./strace-static-x86_64: Process 6009 attached [pid 6008] <... symlink resumed>) = 0 [pid 6005] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... restart_syscall resumed>) = 0 [pid 6008] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 6005] close(28 [pid 6009] set_robust_list(0x5555947fb660, 24) = 0 [pid 6005] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6005] close(29 [pid 6007] close(3 [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 26 [pid 6009] chdir("./24" [pid 6008] <... symlink resumed>) = 0 [pid 6007] <... close resumed>) = 0 [pid 6005] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6009] <... chdir resumed>) = 0 [pid 6008] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 6007] read(200, [pid 6005] exit_group(0 [pid 5874] umount2("./22", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6008] <... symlink resumed>) = 0 [pid 6007] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6005] <... exit_group resumed>) = ? [pid 6009] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6007] symlink("/dev/binderfs", "./binderfs" [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6007] <... symlink resumed>) = 0 [pid 6009] <... prctl resumed>) = 0 [pid 6008] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6007] write(1, "executing program\n", 18 [pid 6005] +++ exited with 0 +++ executing program [pid 6009] setpgid(0, 0 [pid 6008] <... openat resumed>) = 3 [pid 5874] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6009] <... setpgid resumed>) = 0 [pid 6008] write(3, "1000", 4 [pid 6007] <... write resumed>) = 18 [pid 5874] <... openat resumed>) = 3 [pid 6008] <... write resumed>) = 4 [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=25, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6008] close(3 [pid 5874] newfstatat(3, "", [pid 6008] <... close resumed>) = 0 [pid 6007] perf_event_open( [pid 6008] read(200, [pid 6009] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 6008] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5873] restart_syscall(<... resuming interrupted clone ...> [pid 6008] symlink("/dev/binderfs", "./binderfs" [pid 6009] <... symlink resumed>) = 0 [pid 6008] <... symlink resumed>) = 0 [pid 6007] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5874] getdents64(3, executing program [pid 6009] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 6008] write(1, "executing program\n", 18 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6008] <... write resumed>) = 18 [pid 6007] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6009] <... symlink resumed>) = 0 [pid 6008] perf_event_open( [pid 5874] umount2("./22/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6009] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5873] <... restart_syscall resumed>) = 0 [pid 6009] <... symlink resumed>) = 0 [pid 6008] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6007] <... bpf resumed>) = 4 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6009] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6008] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6009] <... openat resumed>) = 3 [pid 6008] <... bpf resumed>) = 4 [pid 5874] newfstatat(AT_FDCWD, "./22/binderfs", [pid 6007] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6009] write(3, "1000", 4 [pid 6008] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6009] <... write resumed>) = 4 [pid 6008] <... bpf resumed>) = 5 [pid 5874] unlink("./22/binderfs" [pid 5873] umount2("./23", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6009] close(3) = 0 [pid 6008] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6009] read(200, [pid 6007] <... bpf resumed>) = 5 [pid 5874] <... unlink resumed>) = 0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6009] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6008] <... bpf resumed>) = 6 [pid 6007] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6009] symlink("/dev/binderfs", "./binderfs" [pid 6008] perf_event_open( [pid 6007] <... bpf resumed>) = 6 [pid 5874] umount2("./22/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6009] <... symlink resumed>) = 0 [pid 6008] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6007] perf_event_open( [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... openat resumed>) = 3 [pid 6009] write(1, "executing program\n", 18 [pid 6008] close(3 [pid 6007] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5874] newfstatat(AT_FDCWD, "./22/cgroup.net", executing program [pid 6009] <... write resumed>) = 18 [pid 6007] close(3 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] newfstatat(3, "", [pid 6009] perf_event_open( [pid 6008] <... close resumed>) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6009] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5874] unlink("./22/cgroup.net" [pid 6009] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6008] close(4 [pid 6007] <... close resumed>) = 0 [pid 5874] <... unlink resumed>) = 0 [pid 5873] getdents64(3, [pid 6008] <... close resumed>) = 0 [pid 6009] <... bpf resumed>) = 4 [pid 6007] close(4 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6009] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6008] close(5 [pid 6007] <... close resumed>) = 0 [pid 5874] umount2("./22/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] umount2("./23/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6008] <... close resumed>) = 0 [pid 6007] close(5 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6008] close(6 [pid 6007] <... close resumed>) = 0 [pid 5873] newfstatat(AT_FDCWD, "./23/binderfs", [pid 6007] close(6 [pid 5874] newfstatat(AT_FDCWD, "./22/cgroup.cpu", [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] unlink("./23/binderfs" [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... unlink resumed>) = 0 [pid 6009] <... bpf resumed>) = 5 [pid 6008] <... close resumed>) = 0 [pid 5874] unlink("./22/cgroup.cpu" [pid 6009] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5874] <... unlink resumed>) = 0 [pid 5874] umount2("./22/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5874] newfstatat(AT_FDCWD, "./22/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] unlink("./22/cgroup" [pid 6009] <... bpf resumed>) = 6 [pid 6008] close(7 [pid 6007] <... close resumed>) = 0 [pid 5874] <... unlink resumed>) = 0 [pid 5873] umount2("./23/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6009] perf_event_open( [pid 6008] <... close resumed>) = 0 [pid 6007] close(7 [pid 5874] getdents64(3, [pid 6009] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6008] close(8 [pid 6007] <... close resumed>) = 0 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6008] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6007] close(8) = -1 EBADF (Bad file descriptor) [pid 6007] close(9) = -1 EBADF (Bad file descriptor) [pid 6009] close(3 [pid 6008] close(9 [pid 5874] close(3 [pid 5873] newfstatat(AT_FDCWD, "./23/cgroup.net", [pid 6008] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6007] close(10 [pid 5874] <... close resumed>) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6008] close(10 [pid 5874] rmdir("./22" [pid 6008] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... rmdir resumed>) = 0 [pid 5873] unlink("./23/cgroup.net" [pid 6008] close(11) = -1 EBADF (Bad file descriptor) [pid 5874] mkdir("./23", 0777 [pid 6007] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6008] close(12 [pid 5874] <... mkdir resumed>) = 0 [pid 5873] <... unlink resumed>) = 0 [pid 6008] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6007] close(11 [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6008] close(13 [pid 6007] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6008] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] umount2("./23/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6008] close(14 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6008] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] newfstatat(AT_FDCWD, "./23/cgroup.cpu", [pid 6008] close(15 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6008] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] unlink("./23/cgroup.cpu" [pid 6008] close(16) = -1 EBADF (Bad file descriptor) [pid 5873] <... unlink resumed>) = 0 [pid 6008] close(17./strace-static-x86_64: Process 6010 attached ) = -1 EBADF (Bad file descriptor) [pid 5873] umount2("./23/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6010] set_robust_list(0x5555947fb660, 24 [pid 6008] close(18 [pid 6007] close(12 [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 25 [pid 6010] <... set_robust_list resumed>) = 0 [pid 6008] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6007] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6010] chdir("./23" [pid 6008] close(19 [pid 6007] close(13 [pid 5873] newfstatat(AT_FDCWD, "./23/cgroup", [pid 6007] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6007] close(14) = -1 EBADF (Bad file descriptor) [pid 6007] close(15) = -1 EBADF (Bad file descriptor) [pid 6007] close(16) = -1 EBADF (Bad file descriptor) [pid 6007] close(17) = -1 EBADF (Bad file descriptor) [pid 6007] close(18) = -1 EBADF (Bad file descriptor) [pid 6007] close(19) = -1 EBADF (Bad file descriptor) [pid 6007] close(20) = -1 EBADF (Bad file descriptor) [pid 6007] close(21) = -1 EBADF (Bad file descriptor) [pid 6007] close(22) = -1 EBADF (Bad file descriptor) [pid 6007] close(23) = -1 EBADF (Bad file descriptor) [pid 6007] close(24) = -1 EBADF (Bad file descriptor) [pid 6007] close(25) = -1 EBADF (Bad file descriptor) [pid 6007] close(26) = -1 EBADF (Bad file descriptor) [pid 6007] close(27) = -1 EBADF (Bad file descriptor) [pid 6007] close(28) = -1 EBADF (Bad file descriptor) [pid 6007] close(29) = -1 EBADF (Bad file descriptor) [pid 6007] exit_group(0 [pid 6010] <... chdir resumed>) = 0 [pid 6009] <... close resumed>) = 0 [pid 6008] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6007] <... exit_group resumed>) = ? [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6010] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6009] close(4 [pid 6008] close(20 [pid 6010] <... prctl resumed>) = 0 [pid 5873] unlink("./23/cgroup" [pid 6010] setpgid(0, 0 [pid 6009] <... close resumed>) = 0 [pid 6008] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... unlink resumed>) = 0 [pid 6010] <... setpgid resumed>) = 0 [pid 6009] close(5 [pid 6008] close(21 [pid 5873] getdents64(3, [pid 6010] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 6009] <... close resumed>) = 0 [pid 6008] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6007] +++ exited with 0 +++ [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6009] close(6 [pid 6008] close(22 [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=26, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5873] close(3 [pid 6010] <... symlink resumed>) = 0 [pid 6009] <... close resumed>) = 0 [pid 6008] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... close resumed>) = 0 [pid 5876] restart_syscall(<... resuming interrupted clone ...> [pid 5873] rmdir("./23" [pid 6008] close(23 [pid 6009] close(7 [pid 6008] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6010] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu") = 0 [pid 6009] <... close resumed>) = 0 [pid 6008] close(24 [pid 5873] <... rmdir resumed>) = 0 [pid 6010] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 6009] close(8 [pid 6008] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6008] close(25 [pid 5873] mkdir("./24", 0777 [pid 6010] <... symlink resumed>) = 0 [pid 6009] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6008] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... mkdir resumed>) = 0 [pid 6010] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6009] close(9 [pid 6008] close(26 [pid 6009] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6008] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6010] <... openat resumed>) = 3 [pid 6009] close(10 [pid 6008] close(27 [pid 6009] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6008] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6009] close(11 [pid 6008] close(28 [pid 6009] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6008] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6010] write(3, "1000", 4 [pid 6009] close(12 [pid 6008] close(29./strace-static-x86_64: Process 6011 attached [pid 6010] <... write resumed>) = 4 [pid 6009] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6008] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6010] close(3) = 0 [pid 6010] read(200, [pid 5876] <... restart_syscall resumed>) = 0 [pid 6011] set_robust_list(0x5555947fb660, 24 [pid 6010] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 26 [pid 6011] <... set_robust_list resumed>) = 0 [pid 6010] symlink("/dev/binderfs", "./binderfs" [pid 6009] close(13 [pid 6010] <... symlink resumed>) = 0 [pid 6009] <... close resumed>) = -1 EBADF (Bad file descriptor) executing program [pid 6010] write(1, "executing program\n", 18 [pid 6008] exit_group(0 [pid 5876] umount2("./24", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6011] chdir("./24" [pid 6010] <... write resumed>) = 18 [pid 6009] close(14 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6010] perf_event_open( [pid 6008] <... exit_group resumed>) = ? [pid 5876] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6011] <... chdir resumed>) = 0 [pid 6009] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... openat resumed>) = 3 [pid 6011] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6009] close(15 [pid 6011] <... prctl resumed>) = 0 [pid 5876] newfstatat(3, "", [pid 6009] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6010] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6011] setpgid(0, 0 [pid 6010] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6009] close(16 [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6011] <... setpgid resumed>) = 0 [pid 6010] <... bpf resumed>) = 4 [pid 6010] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6011] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 6009] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6008] +++ exited with 0 +++ [pid 5876] getdents64(3, [pid 6010] <... bpf resumed>) = 5 [pid 6009] close(17 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6011] <... symlink resumed>) = 0 [pid 6009] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=26, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5876] umount2("./24/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6011] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 6009] close(18 [pid 5877] restart_syscall(<... resuming interrupted clone ...> [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6010] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6009] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(AT_FDCWD, "./24/binderfs", [pid 6011] <... symlink resumed>) = 0 [pid 6010] <... bpf resumed>) = 6 [pid 6009] close(19 [pid 6011] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 6010] perf_event_open( [pid 6009] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6011] <... symlink resumed>) = 0 [pid 6010] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6009] close(20 [pid 6011] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6010] close(3 [pid 6009] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] unlink("./24/binderfs" [pid 6011] <... openat resumed>) = 3 [pid 6009] close(21 [pid 5876] <... unlink resumed>) = 0 [pid 6009] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6009] close(22 [pid 5876] umount2("./24/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6011] write(3, "1000", 4 [pid 6009] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6011] <... write resumed>) = 4 [pid 6009] close(23 [pid 5876] newfstatat(AT_FDCWD, "./24/cgroup.net", [pid 6011] close(3 [pid 6009] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6011] <... close resumed>) = 0 [pid 6009] close(24 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6011] read(200, [pid 6009] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] unlink("./24/cgroup.net" [pid 6011] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6009] close(25 [pid 5877] <... restart_syscall resumed>) = 0 [pid 5876] <... unlink resumed>) = 0 [pid 6011] symlink("/dev/binderfs", "./binderfs" [pid 6009] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./24/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6011] <... symlink resumed>) = 0 [pid 6009] close(26 [pid 5877] umount2("./24", MNT_FORCE|UMOUNT_NOFOLLOWexecuting program [pid 6011] write(1, "executing program\n", 18 [pid 6009] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6009] close(27 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6011] <... write resumed>) = 18 [pid 6009] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(AT_FDCWD, "./24/cgroup.cpu", [pid 6009] close(28) = -1 EBADF (Bad file descriptor) [pid 5877] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6011] perf_event_open( [pid 5877] <... openat resumed>) = 3 [pid 5877] newfstatat(3, "", [pid 6009] close(29 [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6009] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] getdents64(3, [pid 5876] unlink("./24/cgroup.cpu" [pid 6009] exit_group(0 [pid 5876] <... unlink resumed>) = 0 [pid 6009] <... exit_group resumed>) = ? [pid 5876] umount2("./24/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5877] umount2("./24/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] newfstatat(AT_FDCWD, "./24/cgroup", [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6009] +++ exited with 0 +++ [pid 5876] unlink("./24/cgroup" [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=26, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 6011] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6010] <... close resumed>) = 0 [pid 5877] newfstatat(AT_FDCWD, "./24/binderfs", [pid 6011] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6010] close(4 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] <... unlink resumed>) = 0 [pid 6011] <... bpf resumed>) = 4 [pid 5876] getdents64(3, [pid 6011] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6010] <... close resumed>) = 0 [pid 5877] unlink("./24/binderfs" [pid 5876] close(3 [pid 6010] close(5 [pid 5877] <... unlink resumed>) = 0 [pid 5876] <... close resumed>) = 0 [pid 6011] <... bpf resumed>) = 5 [pid 5877] umount2("./24/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] rmdir("./24" [pid 6011] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6010] <... close resumed>) = 0 [pid 5876] <... rmdir resumed>) = 0 [pid 6011] <... bpf resumed>) = 6 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6010] close(6 [pid 6011] perf_event_open( [pid 5877] newfstatat(AT_FDCWD, "./24/cgroup.net", [pid 5876] mkdir("./25", 0777 [pid 6011] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] <... mkdir resumed>) = 0 [pid 5877] unlink("./24/cgroup.net" [pid 6011] close(3 [pid 6010] <... close resumed>) = 0 [pid 5877] <... unlink resumed>) = 0 [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6010] close(7 [pid 5877] umount2("./24/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 6012 attached [pid 6012] set_robust_list(0x5555947fb660, 24 [pid 6010] <... close resumed>) = 0 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 27 [pid 6012] <... set_robust_list resumed>) = 0 [pid 6010] close(8 [pid 5877] newfstatat(AT_FDCWD, "./24/cgroup.cpu", [pid 5875] umount2("./24", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6010] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./24/cgroup.cpu" [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5877] <... unlink resumed>) = 0 [pid 5875] <... openat resumed>) = 3 [pid 5875] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5877] umount2("./24/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] getdents64(3, 0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6012] chdir("./25" [pid 6010] close(9 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] umount2("./24/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6012] <... chdir resumed>) = 0 [pid 6010] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./24/cgroup", [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6012] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6010] close(10 [pid 5875] newfstatat(AT_FDCWD, "./24/binderfs", [pid 6012] <... prctl resumed>) = 0 [pid 6010] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6010] close(11 [pid 5877] unlink("./24/cgroup" [pid 5875] unlink("./24/binderfs" [pid 5877] <... unlink resumed>) = 0 [pid 6012] setpgid(0, 0 [pid 5875] <... unlink resumed>) = 0 [pid 6012] <... setpgid resumed>) = 0 [pid 6010] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./24/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6010] close(12 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] newfstatat(AT_FDCWD, "./24/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] unlink("./24/cgroup.net") = 0 [pid 6012] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5877] getdents64(3, [pid 5875] umount2("./24/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6010] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5875] newfstatat(AT_FDCWD, "./24/cgroup.cpu", [pid 6010] close(13 [pid 5877] close(3 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6010] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] unlink("./24/cgroup.cpu" [pid 6010] close(14 [pid 6012] <... symlink resumed>) = 0 [pid 5875] <... unlink resumed>) = 0 [pid 6010] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... close resumed>) = 0 [pid 5875] umount2("./24/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6012] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 6010] close(15 [pid 5877] rmdir("./24" [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6010] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(AT_FDCWD, "./24/cgroup", [pid 6010] close(16 [pid 5877] <... rmdir resumed>) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6010] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] unlink("./24/cgroup" [pid 6012] <... symlink resumed>) = 0 [pid 6010] close(17 [pid 5877] mkdir("./25", 0777 [pid 5875] <... unlink resumed>) = 0 [pid 6012] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 6010] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] getdents64(3, [pid 6011] <... close resumed>) = 0 [pid 5877] <... mkdir resumed>) = 0 [pid 6012] <... symlink resumed>) = 0 [pid 6010] close(18 [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6012] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6011] close(4 [pid 6010] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] close(3 [pid 6011] <... close resumed>) = 0 [pid 6010] close(19 [pid 5875] <... close resumed>) = 0 [pid 6012] <... openat resumed>) = 3 [pid 6010] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6012] write(3, "1000", 4 [pid 6010] close(20 [pid 6012] <... write resumed>) = 4 [pid 6010] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6012] close(3 [pid 6010] close(21./strace-static-x86_64: Process 6013 attached [pid 6012] <... close resumed>) = 0 [pid 6010] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6013] set_robust_list(0x5555947fb660, 24 [pid 6012] read(200, [pid 6010] close(22 [pid 6011] close(5 [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 27 [pid 5875] rmdir("./24" [pid 6013] <... set_robust_list resumed>) = 0 [pid 6012] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6010] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6013] chdir("./25" [pid 6011] <... close resumed>) = 0 [pid 6010] close(23 [pid 6013] <... chdir resumed>) = 0 [pid 6012] symlink("/dev/binderfs", "./binderfs" [pid 6011] close(6 [pid 6010] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... rmdir resumed>) = 0 [pid 6013] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6012] <... symlink resumed>) = 0 [pid 6010] close(24 [pid 5875] mkdir("./25", 0777 [pid 6013] <... prctl resumed>) = 0 executing program [pid 6012] write(1, "executing program\n", 18 [pid 6010] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6013] setpgid(0, 0 [pid 6012] <... write resumed>) = 18 [pid 6010] close(25 [pid 6013] <... setpgid resumed>) = 0 [pid 6012] perf_event_open( [pid 6010] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6013] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 6011] <... close resumed>) = 0 [pid 6011] close(7 [pid 6010] close(26 [pid 5875] <... mkdir resumed>) = 0 [pid 6012] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6011] <... close resumed>) = 0 [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6013] <... symlink resumed>) = 0 [pid 6010] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6012] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6011] close(8 [pid 6010] close(27 [pid 6012] <... bpf resumed>) = 4 [pid 6010] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 6014 attached [pid 6013] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 6012] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6011] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6010] close(28 [pid 6014] set_robust_list(0x5555947fb660, 24 [pid 6013] <... symlink resumed>) = 0 [pid 6011] close(9 [pid 6010] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6014] <... set_robust_list resumed>) = 0 [pid 6013] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 6011] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6010] close(29 [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 27 [pid 6014] chdir("./25" [pid 6013] <... symlink resumed>) = 0 [pid 6012] <... bpf resumed>) = 5 [pid 6011] close(10 [pid 6010] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6013] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6011] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6013] <... openat resumed>) = 3 [pid 6011] close(11) = -1 EBADF (Bad file descriptor) [pid 6011] close(12) = -1 EBADF (Bad file descriptor) [pid 6011] close(13 [pid 6013] write(3, "1000", 4 [pid 6011] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6012] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6010] exit_group(0 [pid 6014] <... chdir resumed>) = 0 [pid 6013] <... write resumed>) = 4 [pid 6011] close(14 [pid 6013] close(3 [pid 6011] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6013] <... close resumed>) = 0 [pid 6012] <... bpf resumed>) = 6 [pid 6011] close(15 [pid 6013] read(200, [pid 6011] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6013] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6011] close(16 [pid 6013] symlink("/dev/binderfs", "./binderfs" [pid 6011] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6013] <... symlink resumed>) = 0 [pid 6011] close(17) = -1 EBADF (Bad file descriptor) [pid 6011] close(18) = -1 EBADF (Bad file descriptor) [pid 6012] perf_event_open(executing program [pid 6011] close(19 [pid 6010] <... exit_group resumed>) = ? [pid 6014] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6013] write(1, "executing program\n", 18 [pid 6011] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6013] <... write resumed>) = 18 [pid 6011] close(20 [pid 6013] perf_event_open( [pid 6011] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6013] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6011] close(21) = -1 EBADF (Bad file descriptor) [pid 6011] close(22) = -1 EBADF (Bad file descriptor) [pid 6013] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6011] close(23 [pid 6013] <... bpf resumed>) = 4 [pid 6012] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6011] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6013] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6011] close(24 [pid 6014] <... prctl resumed>) = 0 [pid 6012] close(3 [pid 6010] +++ exited with 0 +++ [pid 6014] setpgid(0, 0 [pid 6011] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6014] <... setpgid resumed>) = 0 [pid 6013] <... bpf resumed>) = 5 [pid 6011] close(25 [pid 6013] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6011] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6014] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 6013] <... bpf resumed>) = 6 [pid 6011] close(26 [pid 6013] perf_event_open( [pid 6012] <... close resumed>) = 0 [pid 6011] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=25, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 6013] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6011] close(27) = -1 EBADF (Bad file descriptor) [pid 6013] close(3 [pid 6011] close(28) = -1 EBADF (Bad file descriptor) [pid 6014] <... symlink resumed>) = 0 [pid 6012] close(4 [pid 6011] close(29 [pid 6014] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 6012] <... close resumed>) = 0 [pid 6011] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6014] <... symlink resumed>) = 0 [pid 6014] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5874] umount2("./23", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6014] <... symlink resumed>) = 0 [pid 6012] close(5 [pid 6011] exit_group(0 [pid 6014] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6012] <... close resumed>) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6012] close(6 [pid 6011] <... exit_group resumed>) = ? [pid 6014] <... openat resumed>) = 3 [pid 5874] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 6014] write(3, "1000", 4 [pid 5874] newfstatat(3, "", [pid 6014] <... write resumed>) = 4 [pid 6014] close(3 [pid 6012] <... close resumed>) = 0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6014] <... close resumed>) = 0 [pid 6012] close(7 [pid 5874] getdents64(3, [pid 6014] read(200, [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6014] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6012] <... close resumed>) = 0 [pid 6011] +++ exited with 0 +++ [pid 6012] close(8) = -1 EBADF (Bad file descriptor) [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=26, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6012] close(9) = -1 EBADF (Bad file descriptor) [pid 6012] close(10 [pid 6014] symlink("/dev/binderfs", "./binderfs"executing program [pid 5874] umount2("./23/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6014] <... symlink resumed>) = 0 [pid 6012] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6014] write(1, "executing program\n", 18 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6014] <... write resumed>) = 18 [pid 6012] close(11 [pid 5874] newfstatat(AT_FDCWD, "./23/binderfs", [pid 6014] perf_event_open( [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6013] <... close resumed>) = 0 [pid 6012] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] unlink("./23/binderfs" [pid 5873] umount2("./24", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6014] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6012] close(12 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6012] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6014] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6013] close(4 [pid 6012] close(13 [pid 5874] <... unlink resumed>) = 0 [pid 6014] <... bpf resumed>) = 4 [pid 6013] <... close resumed>) = 0 [pid 6012] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... openat resumed>) = 3 [pid 5874] umount2("./23/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6012] close(14) = -1 EBADF (Bad file descriptor) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] newfstatat(3, "", [pid 6014] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6013] close(5 [pid 6012] close(15 [pid 5874] newfstatat(AT_FDCWD, "./23/cgroup.net", [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6012] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6012] close(16 [pid 5873] getdents64(3, [pid 6012] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6012] close(17) = -1 EBADF (Bad file descriptor) [pid 5873] umount2("./24/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6012] close(18 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6012] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] newfstatat(AT_FDCWD, "./24/binderfs", [pid 6012] close(19 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6012] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] unlink("./24/binderfs" [pid 6012] close(20 [pid 5873] <... unlink resumed>) = 0 [pid 6014] <... bpf resumed>) = 5 [pid 6013] <... close resumed>) = 0 [pid 6012] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6014] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6013] close(6 [pid 5874] unlink("./23/cgroup.net" [pid 6012] close(21 [pid 5874] <... unlink resumed>) = 0 [pid 5873] umount2("./24/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6014] <... bpf resumed>) = 6 [pid 6012] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./23/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6014] perf_event_open( [pid 6012] close(22 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] newfstatat(AT_FDCWD, "./24/cgroup.net", [pid 6014] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6013] <... close resumed>) = 0 [pid 6012] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] newfstatat(AT_FDCWD, "./23/cgroup.cpu", [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6013] close(7 [pid 6012] close(23 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] unlink("./24/cgroup.net" [pid 6014] close(3 [pid 6012] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... unlink resumed>) = 0 [pid 6013] <... close resumed>) = 0 [pid 5874] unlink("./23/cgroup.cpu" [pid 6012] close(24 [pid 5873] umount2("./24/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6012] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... unlink resumed>) = 0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6012] close(25 [pid 5873] newfstatat(AT_FDCWD, "./24/cgroup.cpu", [pid 6012] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6012] close(26 [pid 5873] unlink("./24/cgroup.cpu" [pid 6012] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... unlink resumed>) = 0 [pid 6012] close(27) = -1 EBADF (Bad file descriptor) [pid 5873] umount2("./24/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6012] close(28) = -1 EBADF (Bad file descriptor) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6012] close(29 [pid 5873] newfstatat(AT_FDCWD, "./24/cgroup", [pid 6013] close(8 [pid 6012] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./23/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6013] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6013] close(9 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6013] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6012] exit_group(0 [pid 5873] unlink("./24/cgroup" [pid 6012] <... exit_group resumed>) = ? [pid 6013] close(10 [pid 5874] newfstatat(AT_FDCWD, "./23/cgroup", [pid 6013] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6013] close(11 [pid 5874] unlink("./23/cgroup" [pid 6013] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... unlink resumed>) = 0 [pid 6013] close(12 [pid 5874] getdents64(3, [pid 6013] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6013] close(13) = -1 EBADF (Bad file descriptor) [pid 5874] close(3 [pid 6013] close(14 [pid 5874] <... close resumed>) = 0 [pid 6013] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6012] +++ exited with 0 +++ [pid 6013] close(15 [pid 5874] rmdir("./23" [pid 6013] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... rmdir resumed>) = 0 [pid 6013] close(16) = -1 EBADF (Bad file descriptor) [pid 5874] mkdir("./24", 0777) = 0 [pid 6013] close(17 [pid 5873] <... unlink resumed>) = 0 [pid 6013] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6013] close(18 [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6013] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] getdents64(3, [pid 6013] close(19 [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=27, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6013] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] restart_syscall(<... resuming interrupted clone ...> [pid 5873] close(3) = 0 [pid 5873] rmdir("./24" [pid 6013] close(20 [pid 5873] <... rmdir resumed>) = 0 [pid 5873] mkdir("./25", 0777) = 0 [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6014] <... close resumed>) = 0 ./strace-static-x86_64: Process 6015 attached [pid 6013] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 6016 attached [pid 6013] close(21 [pid 6016] set_robust_list(0x5555947fb660, 24 [pid 6013] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 26 [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 27 [pid 6016] <... set_robust_list resumed>) = 0 [pid 6015] set_robust_list(0x5555947fb660, 24 [pid 6014] close(4 [pid 6013] close(22 [pid 5876] umount2("./25", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6016] chdir("./25" [pid 6015] <... set_robust_list resumed>) = 0 [pid 6016] <... chdir resumed>) = 0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6016] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6014] <... close resumed>) = 0 [pid 6016] setpgid(0, 0) = 0 [pid 6015] chdir("./24" [pid 6016] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 6014] close(5 [pid 6013] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6013] close(23 [pid 5876] <... openat resumed>) = 3 [pid 6013] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6015] <... chdir resumed>) = 0 [pid 6013] close(24 [pid 6015] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5876] newfstatat(3, "", [pid 6013] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6016] <... symlink resumed>) = 0 [pid 6013] close(25 [pid 6016] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 6015] <... prctl resumed>) = 0 [pid 6014] <... close resumed>) = 0 [pid 6013] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6013] close(26 [pid 6015] setpgid(0, 0 [pid 6016] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 6014] close(6 [pid 6013] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] getdents64(3, [pid 6016] <... symlink resumed>) = 0 [pid 6013] close(27 [pid 6015] <... setpgid resumed>) = 0 [pid 6013] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6014] <... close resumed>) = 0 [pid 6013] close(28 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6013] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6016] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6015] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 6013] close(29 [pid 6014] close(7 [pid 5876] umount2("./25/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6015] <... symlink resumed>) = 0 [pid 6013] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6016] <... openat resumed>) = 3 [pid 6016] write(3, "1000", 4 [pid 6015] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 6014] <... close resumed>) = 0 [pid 6013] exit_group(0 [pid 5876] newfstatat(AT_FDCWD, "./25/binderfs", [pid 6016] <... write resumed>) = 4 [pid 6014] close(8 [pid 6016] close(3 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6014] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6016] <... close resumed>) = 0 [pid 5876] unlink("./25/binderfs" [pid 6016] read(200, [pid 6015] <... symlink resumed>) = 0 [pid 6014] close(9 [pid 6013] <... exit_group resumed>) = ? [pid 6016] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6015] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 6014] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 6016] symlink("/dev/binderfs", "./binderfs" [pid 6015] <... symlink resumed>) = 0 [pid 6014] close(10 [pid 6016] <... symlink resumed>) = 0 [pid 6015] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6014] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6013] +++ exited with 0 +++ [pid 5876] umount2("./25/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6016] write(1, "executing program\n", 18 [pid 6014] close(11 [pid 6015] <... openat resumed>) = 3 [pid 6014] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) executing program [pid 6016] <... write resumed>) = 18 [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=27, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 6014] close(12 [pid 5876] newfstatat(AT_FDCWD, "./25/cgroup.net", [pid 6015] write(3, "1000", 4 [pid 6014] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] restart_syscall(<... resuming interrupted clone ...> [pid 6014] close(13 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6016] perf_event_open( [pid 6015] <... write resumed>) = 4 [pid 6015] close(3) = 0 [pid 6015] read(200, [pid 6016] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6014] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... restart_syscall resumed>) = 0 [pid 5876] unlink("./25/cgroup.net" [pid 6016] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6015] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6016] <... bpf resumed>) = 4 [pid 6015] symlink("/dev/binderfs", "./binderfs" [pid 6014] close(14 [pid 5876] <... unlink resumed>) = 0 [pid 6016] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6014] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./25/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6015] <... symlink resumed>) = 0 [pid 6014] close(15) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6016] <... bpf resumed>) = 5 executing program [pid 6015] write(1, "executing program\n", 18 [pid 6014] close(16 [pid 5877] umount2("./25", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] newfstatat(AT_FDCWD, "./25/cgroup.cpu", [pid 6016] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6015] <... write resumed>) = 18 [pid 6014] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6016] <... bpf resumed>) = 6 [pid 6014] close(17 [pid 5877] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6016] perf_event_open( [pid 6014] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... openat resumed>) = 3 [pid 5876] unlink("./25/cgroup.cpu" [pid 6016] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6015] perf_event_open( [pid 6014] close(18 [pid 5877] newfstatat(3, "", [pid 6016] close(3 [pid 6014] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5876] <... unlink resumed>) = 0 [pid 6014] close(19 [pid 5877] getdents64(3, [pid 6014] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5876] umount2("./25/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6014] close(20 [pid 5877] umount2("./25/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6014] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6014] close(21 [pid 5877] newfstatat(AT_FDCWD, "./25/binderfs", [pid 6014] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] newfstatat(AT_FDCWD, "./25/cgroup", [pid 6014] close(22 [pid 5877] unlink("./25/binderfs" [pid 6014] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6014] close(23 [pid 5877] umount2("./25/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] unlink("./25/cgroup" [pid 6014] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6014] close(24 [pid 5877] newfstatat(AT_FDCWD, "./25/cgroup.net", [pid 6014] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6014] close(25 [pid 5877] unlink("./25/cgroup.net" [pid 6014] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 5876] <... unlink resumed>) = 0 [pid 6014] close(26 [pid 5876] getdents64(3, [pid 6016] <... close resumed>) = 0 [pid 6015] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6014] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./25/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6016] close(4 [pid 6015] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6014] close(27 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6016] <... close resumed>) = 0 [pid 5877] newfstatat(AT_FDCWD, "./25/cgroup.cpu", [pid 6016] close(5 [pid 6015] <... bpf resumed>) = 4 [pid 6014] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] close(3 [pid 6016] <... close resumed>) = 0 [pid 6015] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6014] close(28 [pid 5877] unlink("./25/cgroup.cpu" [pid 5876] <... close resumed>) = 0 [pid 6016] close(6 [pid 6014] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 6016] <... close resumed>) = 0 [pid 6015] <... bpf resumed>) = 5 [pid 5877] umount2("./25/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6016] close(7) = 0 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6016] close(8 [pid 5877] newfstatat(AT_FDCWD, "./25/cgroup", [pid 6016] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6016] close(9 [pid 5877] unlink("./25/cgroup" [pid 6016] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] rmdir("./25" [pid 6016] close(10 [pid 5877] <... unlink resumed>) = 0 [pid 6016] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6014] close(29 [pid 5876] <... rmdir resumed>) = 0 [pid 6016] close(11 [pid 6014] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] getdents64(3, [pid 6016] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5876] mkdir("./26", 0777 [pid 6014] exit_group(0 [pid 6016] close(12 [pid 5877] close(3 [pid 6016] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6014] <... exit_group resumed>) = ? [pid 5877] <... close resumed>) = 0 [pid 5876] <... mkdir resumed>) = 0 [pid 6016] close(13 [pid 5877] rmdir("./25" [pid 6016] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... rmdir resumed>) = 0 [pid 6016] close(14 [pid 5877] mkdir("./26", 0777 [pid 6016] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... mkdir resumed>) = 0 [pid 6016] close(15) = -1 EBADF (Bad file descriptor) [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6016] close(16./strace-static-x86_64: Process 6017 attached ) = -1 EBADF (Bad file descriptor) [pid 6015] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6014] +++ exited with 0 +++ [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6016] close(17) = -1 EBADF (Bad file descriptor) [pid 6016] close(18) = -1 EBADF (Bad file descriptor) [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=27, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6016] close(19) = -1 EBADF (Bad file descriptor) [pid 6016] close(20) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./25", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6016] close(21 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6016] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6016] close(22 [pid 5875] <... openat resumed>) = 3 ./strace-static-x86_64: Process 6018 attached [pid 6017] set_robust_list(0x5555947fb660, 24 [pid 6016] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(3, "", [pid 6018] set_robust_list(0x5555947fb660, 24 [pid 6017] <... set_robust_list resumed>) = 0 [pid 6016] close(23 [pid 6015] <... bpf resumed>) = 6 [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 28 [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6018] <... set_robust_list resumed>) = 0 [pid 6016] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 28 [pid 5875] getdents64(3, [pid 6018] chdir("./26" [pid 6017] chdir("./26" [pid 6016] close(24 [pid 6015] perf_event_open( [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6018] <... chdir resumed>) = 0 [pid 6017] <... chdir resumed>) = 0 [pid 6016] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./25/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6018] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6017] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6016] close(25 [pid 6018] <... prctl resumed>) = 0 [pid 6017] <... prctl resumed>) = 0 [pid 6016] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6015] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6018] setpgid(0, 0 [pid 6017] setpgid(0, 0 [pid 6016] close(26 [pid 5875] newfstatat(AT_FDCWD, "./25/binderfs", [pid 6018] <... setpgid resumed>) = 0 [pid 6017] <... setpgid resumed>) = 0 [pid 6016] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6015] close(3 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6018] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 6017] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 6016] close(27) = -1 EBADF (Bad file descriptor) [pid 5875] unlink("./25/binderfs" [pid 6016] close(28 [pid 5875] <... unlink resumed>) = 0 [pid 6018] <... symlink resumed>) = 0 [pid 6016] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6016] close(29) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./25/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6018] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 6016] exit_group(0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6016] <... exit_group resumed>) = ? [pid 5875] newfstatat(AT_FDCWD, "./25/cgroup.net", [pid 6017] <... symlink resumed>) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] unlink("./25/cgroup.net" [pid 6018] <... symlink resumed>) = 0 [pid 6017] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5875] <... unlink resumed>) = 0 [pid 5875] umount2("./25/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6017] <... symlink resumed>) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] newfstatat(AT_FDCWD, "./25/cgroup.cpu", [pid 6017] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6018] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 6017] <... symlink resumed>) = 0 [pid 6016] +++ exited with 0 +++ [pid 5875] unlink("./25/cgroup.cpu" [pid 6018] <... symlink resumed>) = 0 [pid 6017] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6018] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5875] <... unlink resumed>) = 0 [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=27, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6018] <... openat resumed>) = 3 [pid 6017] <... openat resumed>) = 3 [pid 5875] umount2("./25/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6018] write(3, "1000", 4 [pid 6017] write(3, "1000", 4 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6018] <... write resumed>) = 4 [pid 6017] <... write resumed>) = 4 [pid 6018] close(3 [pid 6017] close(3 [pid 5875] newfstatat(AT_FDCWD, "./25/cgroup", [pid 6018] <... close resumed>) = 0 [pid 6017] <... close resumed>) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6018] read(200, [pid 6017] read(200, [pid 5875] unlink("./25/cgroup" [pid 6017] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5875] <... unlink resumed>) = 0 [pid 6018] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6018] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6017] symlink("/dev/binderfs", "./binderfs"executing program executing program [pid 6018] write(1, "executing program\n", 18 [pid 6017] <... symlink resumed>) = 0 [pid 6015] <... close resumed>) = 0 [pid 5875] getdents64(3, [pid 6018] <... write resumed>) = 18 [pid 6017] write(1, "executing program\n", 18 [pid 6015] close(4 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6017] <... write resumed>) = 18 [pid 6015] <... close resumed>) = 0 [pid 5875] close(3 [pid 6015] close(5 [pid 5875] <... close resumed>) = 0 [pid 6018] perf_event_open( [pid 6017] perf_event_open({type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6015] <... close resumed>) = 0 [pid 5875] rmdir("./25" [pid 5873] umount2("./25", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6018] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6017] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6015] close(6 [pid 5875] <... rmdir resumed>) = 0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6018] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6017] <... bpf resumed>) = 4 [pid 5873] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6018] <... bpf resumed>) = 4 [pid 6017] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6015] <... close resumed>) = 0 [pid 5875] mkdir("./26", 0777 [pid 5873] <... openat resumed>) = 3 [pid 6018] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5875] <... mkdir resumed>) = 0 [pid 5873] newfstatat(3, "", [pid 6015] close(7 [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6018] <... bpf resumed>) = 5 [pid 5873] getdents64(3, [pid 6017] <... bpf resumed>) = 5 [pid 6015] <... close resumed>) = 0 [pid 6018] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6017] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6015] close(8 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5873] umount2("./25/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5873] newfstatat(AT_FDCWD, "./25/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] unlink("./25/binderfs") = 0 [pid 5873] umount2("./25/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 6019 attached [pid 6018] <... bpf resumed>) = 6 [pid 6017] <... bpf resumed>) = 6 [pid 6015] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6017] perf_event_open( [pid 6015] close(9 [pid 6018] perf_event_open( [pid 6019] set_robust_list(0x5555947fb660, 24 [pid 6017] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6015] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 28 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6019] <... set_robust_list resumed>) = 0 [pid 6018] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6017] close(3 [pid 6015] close(10) = -1 EBADF (Bad file descriptor) [pid 5873] newfstatat(AT_FDCWD, "./25/cgroup.net", [pid 6019] chdir("./26" [pid 6018] close(3 [pid 6017] <... close resumed>) = 0 [pid 6015] close(11 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6015] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6017] close(4 [pid 6019] <... chdir resumed>) = 0 [pid 6015] close(12 [pid 5873] unlink("./25/cgroup.net" [pid 6019] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6015] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... unlink resumed>) = 0 [pid 5873] umount2("./25/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5873] newfstatat(AT_FDCWD, "./25/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] unlink("./25/cgroup.cpu" [pid 6015] close(13 [pid 5873] <... unlink resumed>) = 0 [pid 6019] <... prctl resumed>) = 0 [pid 6015] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6019] setpgid(0, 0 [pid 6015] close(14 [pid 6017] <... close resumed>) = 0 [pid 5873] umount2("./25/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6019] <... setpgid resumed>) = 0 [pid 6015] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6017] close(5 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6015] close(15 [pid 6019] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 6015] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] newfstatat(AT_FDCWD, "./25/cgroup", [pid 6019] <... symlink resumed>) = 0 [pid 6017] <... close resumed>) = 0 [pid 6015] close(16 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6015] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6019] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 6018] <... close resumed>) = 0 [pid 6017] close(6 [pid 6015] close(17 [pid 5873] unlink("./25/cgroup" [pid 6019] <... symlink resumed>) = 0 [pid 6018] close(4 [pid 6015] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6018] <... close resumed>) = 0 [pid 6015] close(18 [pid 6019] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 6015] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6019] <... symlink resumed>) = 0 [pid 6018] close(5 [pid 6015] close(19 [pid 6019] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6018] <... close resumed>) = 0 [pid 6019] <... openat resumed>) = 3 [pid 6015] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6018] close(6 [pid 6015] close(20 [pid 6018] <... close resumed>) = 0 [pid 6017] <... close resumed>) = 0 [pid 6015] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6019] write(3, "1000", 4 [pid 5873] <... unlink resumed>) = 0 [pid 5873] getdents64(3, [pid 6019] <... write resumed>) = 4 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6017] close(7 [pid 6018] close(7 [pid 6015] close(21 [pid 6018] <... close resumed>) = 0 [pid 6015] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6019] close(3 [pid 6018] close(8 [pid 6015] close(22 [pid 5873] close(3 [pid 6019] <... close resumed>) = 0 [pid 6018] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6017] <... close resumed>) = 0 [pid 6015] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6019] read(200, [pid 6018] close(9 [pid 6017] close(8 [pid 6015] close(23 [pid 5873] <... close resumed>) = 0 [pid 6019] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6018] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6017] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6015] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] rmdir("./25" [pid 6019] symlink("/dev/binderfs", "./binderfs" [pid 6018] close(10 [pid 6015] close(24 [pid 6018] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6015] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6018] close(11 [pid 6015] close(25 [pid 6018] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6015] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6019] <... symlink resumed>) = 0 [pid 6018] close(12 [pid 6015] close(26 [pid 6018] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6015] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6018] close(13 [pid 6015] close(27 [pid 6018] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6015] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6018] close(14 [pid 6015] close(28 [pid 6018] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6018] close(15 [pid 6015] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6018] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6015] close(29 [pid 6018] close(16 [pid 6015] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6018] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6015] exit_group(0 [pid 6018] close(17) = -1 EBADF (Bad file descriptor) [pid 6018] close(18 [pid 6015] <... exit_group resumed>) = ? executing program [pid 6019] write(1, "executing program\n", 18 [pid 6017] close(9 [pid 5873] <... rmdir resumed>) = 0 [pid 6019] <... write resumed>) = 18 [pid 6017] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] mkdir("./26", 0777 [pid 6019] perf_event_open( [pid 6018] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6017] close(10 [pid 6015] +++ exited with 0 +++ [pid 6018] close(19 [pid 6017] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... mkdir resumed>) = 0 [pid 6019] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6018] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6017] close(11 [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=26, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6019] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6018] close(20 [pid 6017] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] restart_syscall(<... resuming interrupted clone ...> [pid 6019] <... bpf resumed>) = 4 [pid 6018] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6017] close(12 [pid 5874] <... restart_syscall resumed>) = 0 [pid 6019] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6018] close(21 [pid 6017] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 6020 attached [pid 6018] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6017] close(13 [pid 6018] close(22 [pid 6017] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6018] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./24", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6017] close(14 [pid 6020] set_robust_list(0x5555947fb660, 24 [pid 6018] close(23 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6017] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 28 [pid 6020] <... set_robust_list resumed>) = 0 [pid 6018] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6017] close(15 [pid 6018] close(24 [pid 5874] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6018] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6017] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... openat resumed>) = 3 [pid 6018] close(25) = -1 EBADF (Bad file descriptor) [pid 5874] newfstatat(3, "", [pid 6018] close(26 [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6018] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6018] close(27) = -1 EBADF (Bad file descriptor) [pid 5874] getdents64(3, [pid 6018] close(28 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6018] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6018] close(29 [pid 5874] umount2("./24/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6018] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6018] exit_group(0) = ? [pid 5874] newfstatat(AT_FDCWD, "./24/binderfs", [pid 6020] chdir("./26" [pid 6019] <... bpf resumed>) = 5 [pid 6018] +++ exited with 0 +++ [pid 6017] close(16 [pid 6020] <... chdir resumed>) = 0 [pid 6017] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6019] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6020] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6017] close(17 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6020] <... prctl resumed>) = 0 [pid 6019] <... bpf resumed>) = 6 [pid 6017] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=28, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5874] unlink("./24/binderfs" [pid 6020] setpgid(0, 0 [pid 6019] perf_event_open( [pid 6017] close(18 [pid 5876] restart_syscall(<... resuming interrupted clone ...> [pid 5874] <... unlink resumed>) = 0 [pid 6020] <... setpgid resumed>) = 0 [pid 6019] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6017] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./24/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6020] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 6019] close(3 [pid 5876] <... restart_syscall resumed>) = 0 [pid 6020] <... symlink resumed>) = 0 [pid 6017] close(19 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6020] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 6017] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] newfstatat(AT_FDCWD, "./24/cgroup.net", [pid 6020] <... symlink resumed>) = 0 [pid 6017] close(20 [pid 6020] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 6017] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./26", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6017] close(21 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] unlink("./24/cgroup.net" [pid 6020] <... symlink resumed>) = 0 [pid 6017] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6020] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6017] close(22 [pid 5876] <... openat resumed>) = 3 [pid 5874] <... unlink resumed>) = 0 [pid 6017] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6017] close(23 [pid 5876] newfstatat(3, "", [pid 6017] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6017] close(24 [pid 5876] getdents64(3, [pid 5874] umount2("./24/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6017] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6020] <... openat resumed>) = 3 [pid 6017] close(25 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6017] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./26/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6020] write(3, "1000", 4 [pid 6017] close(26 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] newfstatat(AT_FDCWD, "./24/cgroup.cpu", [pid 6020] <... write resumed>) = 4 [pid 6017] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6020] close(3 [pid 6017] close(27 [pid 5876] newfstatat(AT_FDCWD, "./26/binderfs", [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6020] <... close resumed>) = 0 [pid 6017] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] unlink("./24/cgroup.cpu" [pid 6020] read(200, [pid 6017] close(28 [pid 5876] unlink("./26/binderfs" [pid 5874] <... unlink resumed>) = 0 [pid 6020] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6017] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./24/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6020] symlink("/dev/binderfs", "./binderfs" [pid 6017] close(29 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6020] <... symlink resumed>) = 0 [pid 5874] newfstatat(AT_FDCWD, "./24/cgroup", executing program [pid 6020] write(1, "executing program\n", 18 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6020] <... write resumed>) = 18 [pid 5874] unlink("./24/cgroup" [pid 6020] perf_event_open( [pid 6017] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 5874] <... unlink resumed>) = 0 [pid 5874] getdents64(3, [pid 6017] exit_group(0 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6017] <... exit_group resumed>) = ? [pid 5876] umount2("./26/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] close(3) = 0 [pid 5874] rmdir("./24") = 0 [pid 5874] mkdir("./25", 0777) = 0 [pid 6020] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6019] <... close resumed>) = 0 [pid 6017] +++ exited with 0 +++ [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] newfstatat(AT_FDCWD, "./26/cgroup.net", [pid 6020] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6019] close(4 [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=28, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6020] <... bpf resumed>) = 4 [pid 5876] unlink("./26/cgroup.net") = 0 [pid 5876] umount2("./26/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 6021 attached [pid 6020] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6019] <... close resumed>) = 0 [pid 6021] set_robust_list(0x5555947fb660, 24 [pid 5877] umount2("./26", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 27 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5877] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5877] getdents64(3, [pid 6020] <... bpf resumed>) = 5 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6019] close(5 [pid 6021] <... set_robust_list resumed>) = 0 [pid 5877] umount2("./26/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] newfstatat(AT_FDCWD, "./26/cgroup.cpu", [pid 6021] chdir("./25" [pid 6020] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6019] <... close resumed>) = 0 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6021] <... chdir resumed>) = 0 [pid 6020] <... bpf resumed>) = 6 [pid 6019] close(6 [pid 5877] newfstatat(AT_FDCWD, "./26/binderfs", [pid 5876] unlink("./26/cgroup.cpu" [pid 6021] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6020] perf_event_open( [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] <... unlink resumed>) = 0 [pid 6021] <... prctl resumed>) = 0 [pid 5876] umount2("./26/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6021] setpgid(0, 0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6021] <... setpgid resumed>) = 0 [pid 5876] newfstatat(AT_FDCWD, "./26/cgroup", [pid 6021] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 6019] <... close resumed>) = 0 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6021] <... symlink resumed>) = 0 [pid 6020] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6019] close(7 [pid 5877] unlink("./26/binderfs" [pid 5876] unlink("./26/cgroup" [pid 6021] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 6020] close(3 [pid 5877] <... unlink resumed>) = 0 [pid 5876] <... unlink resumed>) = 0 [pid 6019] <... close resumed>) = 0 [pid 5877] umount2("./26/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6021] <... symlink resumed>) = 0 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] newfstatat(AT_FDCWD, "./26/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5877] unlink("./26/cgroup.net" [pid 6021] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 6019] close(8 [pid 5876] getdents64(3, [pid 6021] <... symlink resumed>) = 0 [pid 6019] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6021] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6019] close(9 [pid 5877] umount2("./26/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] close(3 [pid 6019] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] <... close resumed>) = 0 [pid 6021] <... openat resumed>) = 3 [pid 6019] close(10 [pid 5877] newfstatat(AT_FDCWD, "./26/cgroup.cpu", [pid 5876] rmdir("./26" [pid 6021] write(3, "1000", 4 [pid 6019] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] <... rmdir resumed>) = 0 [pid 6021] <... write resumed>) = 4 [pid 6019] close(11 [pid 5877] unlink("./26/cgroup.cpu" [pid 5876] mkdir("./27", 0777 [pid 6021] close(3 [pid 6019] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 5876] <... mkdir resumed>) = 0 [pid 6021] <... close resumed>) = 0 [pid 5877] umount2("./26/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6021] read(200, [pid 6019] close(12 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6021] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6019] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./26/cgroup", [pid 6021] symlink("/dev/binderfs", "./binderfs" [pid 6019] close(13 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5877] unlink("./26/cgroup") = 0 executing program [pid 5877] getdents64(3, ./strace-static-x86_64: Process 6022 attached [pid 6021] <... symlink resumed>) = 0 [pid 6019] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6021] write(1, "executing program\n", 18 [pid 6019] close(14 [pid 6021] <... write resumed>) = 18 [pid 6019] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 29 [pid 6022] set_robust_list(0x5555947fb660, 24 [pid 6021] perf_event_open( [pid 6019] close(15 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6022] <... set_robust_list resumed>) = 0 [pid 6019] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] close(3 [pid 6019] close(16 [pid 5877] <... close resumed>) = 0 [pid 6019] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] rmdir("./26" [pid 6019] close(17 [pid 6022] chdir("./27" [pid 5877] <... rmdir resumed>) = 0 [pid 5877] mkdir("./27", 0777 [pid 6022] <... chdir resumed>) = 0 [pid 6019] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... mkdir resumed>) = 0 [pid 6022] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6019] close(18) = -1 EBADF (Bad file descriptor) [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6022] <... prctl resumed>) = 0 [pid 6019] close(19 [pid 6022] setpgid(0, 0 [pid 6019] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 6023 attached [pid 6022] <... setpgid resumed>) = 0 [pid 6019] close(20 [pid 6023] set_robust_list(0x5555947fb660, 24 [pid 6019] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6023] <... set_robust_list resumed>) = 0 [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 29 [pid 6023] chdir("./27" [pid 6019] close(21 [pid 6023] <... chdir resumed>) = 0 [pid 6022] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 6019] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6023] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6023] setpgid(0, 0) = 0 [pid 6023] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 6022] <... symlink resumed>) = 0 [pid 6019] close(22 [pid 6022] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 6019] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6023] <... symlink resumed>) = 0 [pid 6022] <... symlink resumed>) = 0 [pid 6019] close(23 [pid 6023] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 6020] <... close resumed>) = 0 [pid 6019] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6019] close(24 [pid 6023] <... symlink resumed>) = 0 [pid 6022] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 6020] close(4 [pid 6023] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 6022] <... symlink resumed>) = 0 [pid 6021] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6020] <... close resumed>) = 0 [pid 6019] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6023] <... symlink resumed>) = 0 [pid 6022] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6021] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6020] close(5 [pid 6019] close(25 [pid 6023] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6020] <... close resumed>) = 0 [pid 6019] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6023] <... openat resumed>) = 3 [pid 6019] close(26 [pid 6020] close(6 [pid 6023] write(3, "1000", 4 [pid 6022] <... openat resumed>) = 3 [pid 6021] <... bpf resumed>) = 4 [pid 6019] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6023] <... write resumed>) = 4 [pid 6022] write(3, "1000", 4 [pid 6020] <... close resumed>) = 0 [pid 6019] close(27 [pid 6023] close(3 [pid 6022] <... write resumed>) = 4 [pid 6020] close(7 [pid 6019] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6023] <... close resumed>) = 0 [pid 6022] close(3 [pid 6021] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6020] <... close resumed>) = 0 [pid 6019] close(28 [pid 6023] read(200, [pid 6022] <... close resumed>) = 0 [pid 6019] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6023] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6022] read(200, [pid 6019] close(29 [pid 6022] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6021] <... bpf resumed>) = 5 [pid 6020] close(8 [pid 6019] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6023] symlink("/dev/binderfs", "./binderfs" [pid 6022] symlink("/dev/binderfs", "./binderfs" [pid 6021] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6020] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6020] close(9) = -1 EBADF (Bad file descriptor) [pid 6020] close(10) = -1 EBADF (Bad file descriptor) [pid 6022] <... symlink resumed>) = 0 [pid 6021] <... bpf resumed>) = 6 [pid 6020] close(11 [pid 6019] exit_group(0 [pid 6023] <... symlink resumed>) = 0 [pid 6021] perf_event_open( [pid 6020] <... close resumed>) = -1 EBADF (Bad file descriptor) executing program executing program [pid 6023] write(1, "executing program\n", 18 [pid 6022] write(1, "executing program\n", 18 [pid 6021] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6020] close(12 [pid 6019] <... exit_group resumed>) = ? [pid 6023] <... write resumed>) = 18 [pid 6022] <... write resumed>) = 18 [pid 6021] close(3 [pid 6020] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6023] perf_event_open( [pid 6022] perf_event_open( [pid 6020] close(13) = -1 EBADF (Bad file descriptor) [pid 6020] close(14) = -1 EBADF (Bad file descriptor) [pid 6020] close(15) = -1 EBADF (Bad file descriptor) [pid 6020] close(16) = -1 EBADF (Bad file descriptor) [pid 6020] close(17) = -1 EBADF (Bad file descriptor) [pid 6020] close(18) = -1 EBADF (Bad file descriptor) [pid 6020] close(19) = -1 EBADF (Bad file descriptor) [pid 6020] close(20) = -1 EBADF (Bad file descriptor) [pid 6020] close(21) = -1 EBADF (Bad file descriptor) [pid 6020] close(22) = -1 EBADF (Bad file descriptor) [pid 6020] close(23) = -1 EBADF (Bad file descriptor) [pid 6020] close(24) = -1 EBADF (Bad file descriptor) [pid 6020] close(25 [pid 6019] +++ exited with 0 +++ [pid 6020] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6020] close(26) = -1 EBADF (Bad file descriptor) [pid 6020] close(27) = -1 EBADF (Bad file descriptor) [pid 6020] close(28) = -1 EBADF (Bad file descriptor) [pid 6020] close(29) = -1 EBADF (Bad file descriptor) [pid 6020] exit_group(0) = ? [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=28, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 6020] +++ exited with 0 +++ [pid 5875] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=28, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6023] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6022] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6021] <... close resumed>) = 0 [pid 6022] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6021] close(4 [pid 6022] <... bpf resumed>) = 4 [pid 6023] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5875] umount2("./26", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6022] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6021] <... close resumed>) = 0 [pid 6023] <... bpf resumed>) = 4 [pid 6021] close(5 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] umount2("./26", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6021] <... close resumed>) = 0 [pid 6022] <... bpf resumed>) = 5 [pid 6021] close(6 [pid 5875] openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6023] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... openat resumed>) = 3 [pid 6022] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5875] newfstatat(3, "", [pid 5873] openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5875] getdents64(3, [pid 6022] <... bpf resumed>) = 6 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5873] <... openat resumed>) = 3 [pid 6022] perf_event_open({type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6021] <... close resumed>) = 0 [pid 5875] umount2("./26/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] newfstatat(3, "", [pid 6023] <... bpf resumed>) = 5 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6023] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6022] close(3 [pid 6021] close(7 [pid 5875] newfstatat(AT_FDCWD, "./26/binderfs", [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6023] <... bpf resumed>) = 6 [pid 6021] <... close resumed>) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] getdents64(3, [pid 6021] close(8 [pid 6023] perf_event_open( [pid 6021] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] unlink("./26/binderfs" [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6022] <... close resumed>) = 0 [pid 6021] close(9 [pid 6022] close(4 [pid 6021] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 [pid 5873] umount2("./26/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6023] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6022] <... close resumed>) = 0 [pid 6023] close(3 [pid 6022] close(5 [pid 6021] close(10 [pid 5875] umount2("./26/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6022] <... close resumed>) = 0 [pid 6022] close(6 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] newfstatat(AT_FDCWD, "./26/binderfs", [pid 6021] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(AT_FDCWD, "./26/cgroup.net", [pid 6021] close(11 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6021] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] unlink("./26/cgroup.net" [pid 5873] unlink("./26/binderfs" [pid 6022] <... close resumed>) = 0 [pid 6021] close(12 [pid 5875] <... unlink resumed>) = 0 [pid 6021] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6022] close(7 [pid 6021] close(13 [pid 6022] <... close resumed>) = 0 [pid 6022] close(8 [pid 5873] <... unlink resumed>) = 0 [pid 6022] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6021] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./26/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] umount2("./26/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6022] close(9 [pid 6021] close(14 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6022] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6021] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(AT_FDCWD, "./26/cgroup.cpu", [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6022] close(10 [pid 6021] close(15 [pid 6022] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6021] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6022] close(11 [pid 6021] close(16 [pid 5873] newfstatat(AT_FDCWD, "./26/cgroup.net", [pid 6022] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6021] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] unlink("./26/cgroup.cpu" [pid 6022] close(12 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6022] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6022] close(13 [pid 5875] <... unlink resumed>) = 0 [pid 6022] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6022] close(14) = -1 EBADF (Bad file descriptor) [pid 6022] close(15) = -1 EBADF (Bad file descriptor) [pid 6021] close(17 [pid 5875] umount2("./26/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] unlink("./26/cgroup.net" [pid 6022] close(16 [pid 6021] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6022] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6022] close(17 [pid 6021] close(18 [pid 5873] <... unlink resumed>) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6022] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6021] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(AT_FDCWD, "./26/cgroup", [pid 5873] umount2("./26/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6022] close(18 [pid 6021] close(19 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6022] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6021] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6022] close(19 [pid 5875] unlink("./26/cgroup" [pid 6022] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6021] close(20 [pid 5873] newfstatat(AT_FDCWD, "./26/cgroup.cpu", [pid 6022] close(20 [pid 6021] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6022] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6022] close(21 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6022] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6021] close(21 [pid 5875] <... unlink resumed>) = 0 [pid 5873] unlink("./26/cgroup.cpu" [pid 6022] close(22 [pid 6021] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6022] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6022] close(23 [pid 6021] close(22 [pid 5875] getdents64(3, [pid 6022] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... unlink resumed>) = 0 [pid 6022] close(24 [pid 6021] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5873] umount2("./26/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6022] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6021] close(23 [pid 5875] close(3 [pid 6022] close(25) = -1 EBADF (Bad file descriptor) [pid 6022] close(26 [pid 6021] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... close resumed>) = 0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6022] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6021] close(24 [pid 6022] close(27 [pid 5875] rmdir("./26" [pid 6021] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] newfstatat(AT_FDCWD, "./26/cgroup", [pid 6022] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6021] close(25 [pid 6022] close(28 [pid 5875] <... rmdir resumed>) = 0 [pid 6022] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6021] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6022] close(29) = -1 EBADF (Bad file descriptor) [pid 6021] close(26 [pid 5875] mkdir("./27", 0777 [pid 5873] unlink("./26/cgroup" [pid 6022] exit_group(0 [pid 6021] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... mkdir resumed>) = 0 [pid 5873] <... unlink resumed>) = 0 [pid 6021] close(27 [pid 6022] <... exit_group resumed>) = ? [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5873] getdents64(3, [pid 6023] <... close resumed>) = 0 [pid 6021] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6023] close(4 [pid 6021] close(28 [pid 6023] <... close resumed>) = 0 [pid 6023] close(5 [pid 6021] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 6024 attached [pid 6021] close(29 [pid 6023] <... close resumed>) = 0 [pid 6021] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6024] set_robust_list(0x5555947fb660, 24 [pid 6023] close(6 [pid 6021] exit_group(0 [pid 6024] <... set_robust_list resumed>) = 0 [pid 6022] +++ exited with 0 +++ [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 29 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6024] chdir("./27" [pid 6023] <... close resumed>) = 0 [pid 6021] <... exit_group resumed>) = ? [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=29, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5873] close(3 [pid 6024] <... chdir resumed>) = 0 [pid 6023] close(7 [pid 5873] <... close resumed>) = 0 [pid 6024] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6023] <... close resumed>) = 0 [pid 5873] rmdir("./26" [pid 6024] <... prctl resumed>) = 0 [pid 6023] close(8 [pid 5873] <... rmdir resumed>) = 0 [pid 6024] setpgid(0, 0 [pid 6023] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6021] +++ exited with 0 +++ [pid 5876] umount2("./27", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] mkdir("./27", 0777 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6024] <... setpgid resumed>) = 0 [pid 6023] close(9 [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=27, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5873] <... mkdir resumed>) = 0 [pid 6024] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 6023] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6024] <... symlink resumed>) = 0 [pid 6023] close(10 [pid 5876] <... openat resumed>) = 3 [pid 6024] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 6023] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(3, "", [pid 6024] <... symlink resumed>) = 0 [pid 6023] close(11./strace-static-x86_64: Process 6025 attached [pid 6024] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 6023] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6025] set_robust_list(0x5555947fb660, 24 [pid 6024] <... symlink resumed>) = 0 [pid 5876] getdents64(3, [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 29 [pid 6025] <... set_robust_list resumed>) = 0 [pid 6024] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6023] close(12 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6025] chdir("./27") = 0 [pid 6023] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./27/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6025] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6023] close(13) = -1 EBADF (Bad file descriptor) [pid 6025] <... prctl resumed>) = 0 [pid 6023] close(14 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6025] setpgid(0, 0 [pid 5876] newfstatat(AT_FDCWD, "./27/binderfs", [pid 6025] <... setpgid resumed>) = 0 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6025] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 6024] <... openat resumed>) = 3 [pid 6023] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] unlink("./27/binderfs" [pid 6024] write(3, "1000", 4 [pid 6023] close(15 [pid 6024] <... write resumed>) = 4 [pid 6023] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6024] close(3 [pid 6023] close(16 [pid 6024] <... close resumed>) = 0 [pid 6023] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6024] read(200, [pid 6023] close(17 [pid 6024] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6023] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6024] symlink("/dev/binderfs", "./binderfs"executing program [pid 6023] close(18 [pid 6024] <... symlink resumed>) = 0 [pid 6025] <... symlink resumed>) = 0 [pid 6023] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6023] close(19 [pid 6025] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 6024] write(1, "executing program\n", 18 [pid 6023] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 6024] <... write resumed>) = 18 [pid 6023] close(20 [pid 5876] umount2("./27/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6025] <... symlink resumed>) = 0 [pid 6024] perf_event_open( [pid 6023] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6025] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6024] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5876] newfstatat(AT_FDCWD, "./27/cgroup.net", [pid 6025] <... symlink resumed>) = 0 [pid 6023] close(21 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6024] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6023] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./25", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6025] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6024] <... bpf resumed>) = 4 [pid 6023] close(22 [pid 5876] unlink("./27/cgroup.net" [pid 6023] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] umount2("./27/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6025] <... openat resumed>) = 3 [pid 6023] close(23 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] newfstatat(AT_FDCWD, "./27/cgroup.cpu", [pid 6023] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] unlink("./27/cgroup.cpu") = 0 [pid 5876] umount2("./27/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6025] write(3, "1000", 4 [pid 6024] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6023] close(24 [pid 5874] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6025] <... write resumed>) = 4 [pid 6023] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] <... openat resumed>) = 3 [pid 6023] close(25 [pid 6025] close(3 [pid 6023] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(AT_FDCWD, "./27/cgroup", [pid 6025] <... close resumed>) = 0 [pid 6023] close(26 [pid 6025] read(200, [pid 6023] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6025] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6024] <... bpf resumed>) = 5 [pid 6023] close(27 [pid 5874] newfstatat(3, "", [pid 6025] symlink("/dev/binderfs", "./binderfs" [pid 6024] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6023] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] unlink("./27/cgroup" [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6024] <... bpf resumed>) = 6 [pid 5874] getdents64(3, [pid 6025] <... symlink resumed>) = 0 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 executing program [pid 6025] write(1, "executing program\n", 18 [pid 5876] <... unlink resumed>) = 0 [pid 5874] umount2("./25/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6025] <... write resumed>) = 18 [pid 6024] perf_event_open( [pid 6023] close(28 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6025] perf_event_open( [pid 6024] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6023] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] getdents64(3, [pid 6025] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6023] close(29 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5874] newfstatat(AT_FDCWD, "./25/binderfs", [pid 6023] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] close(3 [pid 6025] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6024] close(3 [pid 6023] exit_group(0 [pid 5876] <... close resumed>) = 0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6025] <... bpf resumed>) = 4 [pid 6023] <... exit_group resumed>) = ? [pid 5876] rmdir("./27" [pid 6025] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6024] <... close resumed>) = 0 [pid 5874] unlink("./25/binderfs" [pid 6023] +++ exited with 0 +++ [pid 5876] <... rmdir resumed>) = 0 [pid 5874] <... unlink resumed>) = 0 [pid 5876] mkdir("./28", 0777 [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=29, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5876] <... mkdir resumed>) = 0 [pid 5874] umount2("./25/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6026 attached [pid 6025] <... bpf resumed>) = 5 [pid 6024] close(4 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6026] set_robust_list(0x5555947fb660, 24 [pid 6025] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6024] <... close resumed>) = 0 [pid 6026] <... set_robust_list resumed>) = 0 [pid 6024] close(5 [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 30 [pid 5874] newfstatat(AT_FDCWD, "./25/cgroup.net", [pid 6025] <... bpf resumed>) = 6 [pid 6024] <... close resumed>) = 0 [pid 6025] perf_event_open( [pid 6024] close(6 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6026] chdir("./28" [pid 5874] unlink("./25/cgroup.net" [pid 6026] <... chdir resumed>) = 0 [pid 5874] <... unlink resumed>) = 0 [pid 6026] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5874] umount2("./25/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6026] setpgid(0, 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] newfstatat(AT_FDCWD, "./25/cgroup.cpu", [pid 6026] <... setpgid resumed>) = 0 [pid 6026] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 6025] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6024] <... close resumed>) = 0 [pid 6025] close(3 [pid 6024] close(7 [pid 6026] <... symlink resumed>) = 0 [pid 6024] <... close resumed>) = 0 [pid 5874] unlink("./25/cgroup.cpu" [pid 6024] close(8) = -1 EBADF (Bad file descriptor) [pid 6024] close(9) = -1 EBADF (Bad file descriptor) [pid 6024] close(10 [pid 5874] <... unlink resumed>) = 0 [pid 6026] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 6024] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./25/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6024] close(11) = -1 EBADF (Bad file descriptor) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6024] close(12) = -1 EBADF (Bad file descriptor) [pid 5874] newfstatat(AT_FDCWD, "./25/cgroup", [pid 6024] close(13) = -1 EBADF (Bad file descriptor) [pid 6024] close(14 [pid 6026] <... symlink resumed>) = 0 [pid 6024] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6024] close(15) = -1 EBADF (Bad file descriptor) [pid 6024] close(16) = -1 EBADF (Bad file descriptor) [pid 6024] close(17) = -1 EBADF (Bad file descriptor) [pid 6024] close(18) = -1 EBADF (Bad file descriptor) [pid 6024] close(19) = -1 EBADF (Bad file descriptor) [pid 6024] close(20) = -1 EBADF (Bad file descriptor) [pid 6024] close(21) = -1 EBADF (Bad file descriptor) [pid 6024] close(22) = -1 EBADF (Bad file descriptor) [pid 6024] close(23) = -1 EBADF (Bad file descriptor) [pid 6024] close(24) = -1 EBADF (Bad file descriptor) [pid 6024] close(25 [pid 6026] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 6024] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./27", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6024] close(26 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] unlink("./25/cgroup" [pid 6026] <... symlink resumed>) = 0 [pid 6024] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6024] close(27 [pid 5874] <... unlink resumed>) = 0 [pid 6024] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6024] close(28) = -1 EBADF (Bad file descriptor) [pid 6024] close(29) = -1 EBADF (Bad file descriptor) [pid 6024] exit_group(0) = ? [pid 6026] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6025] <... close resumed>) = 0 [pid 5877] <... openat resumed>) = 3 [pid 5874] getdents64(3, [pid 6026] <... openat resumed>) = 3 [pid 5877] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5877] getdents64(3, [pid 6026] write(3, "1000", 4 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6026] <... write resumed>) = 4 [pid 5877] umount2("./27/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6026] close(3 [pid 6024] +++ exited with 0 +++ [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6026] <... close resumed>) = 0 [pid 5877] newfstatat(AT_FDCWD, "./27/binderfs", [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=29, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6026] read(200, [pid 5877] unlink("./27/binderfs" [pid 5875] restart_syscall(<... resuming interrupted clone ...> [pid 6026] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5877] <... unlink resumed>) = 0 [pid 6026] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5877] umount2("./27/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) executing program [pid 6026] write(1, "executing program\n", 18 [pid 6025] close(4 [pid 5877] newfstatat(AT_FDCWD, "./27/cgroup.net", [pid 5875] <... restart_syscall resumed>) = 0 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6026] <... write resumed>) = 18 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6026] perf_event_open( [pid 5877] unlink("./27/cgroup.net" [pid 5874] close(3 [pid 6025] <... close resumed>) = 0 [pid 5877] <... unlink resumed>) = 0 [pid 5874] <... close resumed>) = 0 [pid 6025] close(5 [pid 6026] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6025] <... close resumed>) = 0 [pid 5877] umount2("./27/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] umount2("./27", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] rmdir("./25" [pid 6026] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6025] close(6 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] <... rmdir resumed>) = 0 [pid 6026] <... bpf resumed>) = 4 [pid 5877] newfstatat(AT_FDCWD, "./27/cgroup.cpu", [pid 5875] openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5874] mkdir("./26", 0777 [pid 6025] <... close resumed>) = 0 [pid 5875] <... openat resumed>) = 3 [pid 6025] close(7 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6026] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6025] <... close resumed>) = 0 [pid 5875] newfstatat(3, "", [pid 5877] unlink("./27/cgroup.cpu" [pid 5874] <... mkdir resumed>) = 0 [pid 6025] close(8 [pid 5877] <... unlink resumed>) = 0 [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5877] umount2("./27/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 6027 attached [pid 6026] <... bpf resumed>) = 5 [pid 6025] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] getdents64(3, [pid 6027] set_robust_list(0x5555947fb660, 24 [pid 6026] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6025] close(9 [pid 5877] newfstatat(AT_FDCWD, "./27/cgroup", [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 28 [pid 6025] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] umount2("./27/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6027] <... set_robust_list resumed>) = 0 [pid 6026] <... bpf resumed>) = 6 [pid 6025] close(10 [pid 5877] unlink("./27/cgroup" [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6027] chdir("./26" [pid 6026] perf_event_open( [pid 6025] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 5877] getdents64(3, [pid 6025] close(11 [pid 5875] newfstatat(AT_FDCWD, "./27/binderfs", [pid 6026] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6027] <... chdir resumed>) = 0 [pid 6025] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6027] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6025] close(12 [pid 5877] close(3 [pid 5875] unlink("./27/binderfs" [pid 5877] <... close resumed>) = 0 [pid 5875] <... unlink resumed>) = 0 [pid 5877] rmdir("./27") = 0 [pid 5875] umount2("./27/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5877] mkdir("./28", 0777 [pid 5875] newfstatat(AT_FDCWD, "./27/cgroup.net", [pid 5877] <... mkdir resumed>) = 0 [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] unlink("./27/cgroup.net"./strace-static-x86_64: Process 6028 attached [pid 6027] <... prctl resumed>) = 0 [pid 6026] close(3 [pid 6025] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6025] close(13 [pid 6028] set_robust_list(0x5555947fb660, 24 [pid 6027] setpgid(0, 0 [pid 6025] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 30 [pid 5875] <... unlink resumed>) = 0 [pid 6028] <... set_robust_list resumed>) = 0 [pid 6027] <... setpgid resumed>) = 0 [pid 6025] close(14 [pid 6028] chdir("./28" [pid 6027] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 6025] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./27/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6028] <... chdir resumed>) = 0 [pid 6025] close(15 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6027] <... symlink resumed>) = 0 [pid 6028] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6025] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(AT_FDCWD, "./27/cgroup.cpu", [pid 6028] <... prctl resumed>) = 0 [pid 6027] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6028] setpgid(0, 0 [pid 6025] close(16 [pid 5875] unlink("./27/cgroup.cpu" [pid 6028] <... setpgid resumed>) = 0 [pid 6027] <... symlink resumed>) = 0 [pid 6025] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 [pid 6028] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 6027] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 6025] close(17 [pid 5875] umount2("./27/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6025] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6028] <... symlink resumed>) = 0 [pid 6025] close(18 [pid 6028] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 6027] <... symlink resumed>) = 0 [pid 6025] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6028] <... symlink resumed>) = 0 [pid 6027] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6026] <... close resumed>) = 0 [pid 6028] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 6025] close(19 [pid 5875] newfstatat(AT_FDCWD, "./27/cgroup", [pid 6027] <... openat resumed>) = 3 [pid 6026] close(4 [pid 6025] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6028] <... symlink resumed>) = 0 [pid 6027] write(3, "1000", 4 [pid 6026] <... close resumed>) = 0 [pid 6025] close(20 [pid 5875] unlink("./27/cgroup" [pid 6028] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6027] <... write resumed>) = 4 [pid 6026] close(5 [pid 6025] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 [pid 6027] close(3 [pid 6028] <... openat resumed>) = 3 [pid 6027] <... close resumed>) = 0 [pid 6025] close(21 [pid 5875] getdents64(3, [pid 6028] write(3, "1000", 4 [pid 6027] read(200, [pid 6026] <... close resumed>) = 0 [pid 6025] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6028] <... write resumed>) = 4 [pid 6027] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6025] close(22 [pid 6027] symlink("/dev/binderfs", "./binderfs" [pid 6026] close(6 [pid 6028] close(3 [pid 6027] <... symlink resumed>) = 0 [pid 6025] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] close(3 [pid 6028] <... close resumed>) = 0 [pid 6028] read(200, [pid 6027] write(1, "executing program\n", 18 [pid 6025] close(23 [pid 5875] <... close resumed>) = 0 [pid 6028] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6025] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] rmdir("./27"executing program [pid 6028] symlink("/dev/binderfs", "./binderfs" [pid 6027] <... write resumed>) = 18 [pid 6025] close(24 [pid 5875] <... rmdir resumed>) = 0 [pid 6028] <... symlink resumed>) = 0 [pid 6027] perf_event_open( [pid 6026] <... close resumed>) = 0 [pid 6025] <... close resumed>) = -1 EBADF (Bad file descriptor) executing program [pid 5875] mkdir("./28", 0777 [pid 6028] write(1, "executing program\n", 18 [pid 6026] close(7 [pid 6025] close(25 [pid 5875] <... mkdir resumed>) = 0 [pid 6028] <... write resumed>) = 18 [pid 6026] <... close resumed>) = 0 [pid 6025] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6028] perf_event_open( [pid 6027] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6026] close(8 [pid 6025] close(26 [pid 6026] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6025] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6027] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6026] close(9 [pid 6025] close(27./strace-static-x86_64: Process 6029 attached [pid 6028] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6026] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6025] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6029] set_robust_list(0x5555947fb660, 24 [pid 6028] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6027] <... bpf resumed>) = 4 [pid 6026] close(10 [pid 6025] close(28 [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 30 [pid 6029] <... set_robust_list resumed>) = 0 [pid 6028] <... bpf resumed>) = 4 [pid 6027] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6026] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6025] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6029] chdir("./28" [pid 6028] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6026] close(11 [pid 6025] close(29 [pid 6028] <... bpf resumed>) = 5 [pid 6026] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6027] <... bpf resumed>) = 5 [pid 6025] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6026] close(12 [pid 6025] exit_group(0 [pid 6029] <... chdir resumed>) = 0 [pid 6028] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6027] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6026] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6025] <... exit_group resumed>) = ? [pid 6029] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6027] <... bpf resumed>) = 6 [pid 6026] close(13 [pid 6029] <... prctl resumed>) = 0 [pid 6028] <... bpf resumed>) = 6 [pid 6026] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6028] perf_event_open({type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6027] perf_event_open( [pid 6026] close(14 [pid 6025] +++ exited with 0 +++ [pid 6029] setpgid(0, 0 [pid 6028] close(3 [pid 6029] <... setpgid resumed>) = 0 [pid 6027] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6026] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=29, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 6029] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 6028] <... close resumed>) = 0 [pid 6027] close(3 [pid 6026] close(15 [pid 5873] restart_syscall(<... resuming interrupted clone ...> [pid 6029] <... symlink resumed>) = 0 [pid 6026] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... restart_syscall resumed>) = 0 [pid 6029] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 6026] close(16 [pid 6028] close(4 [pid 6026] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6028] <... close resumed>) = 0 [pid 6026] close(17 [pid 6028] close(5 [pid 6026] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] umount2("./27", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6026] close(18 [pid 6028] <... close resumed>) = 0 [pid 6026] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6028] close(6 [pid 6026] close(19 [pid 6029] <... symlink resumed>) = 0 [pid 6026] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6029] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 6026] close(20 [pid 5873] <... openat resumed>) = 3 [pid 6029] <... symlink resumed>) = 0 [pid 6026] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6029] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6026] close(21 [pid 5873] newfstatat(3, "", [pid 6028] <... close resumed>) = 0 [pid 6026] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6028] close(7 [pid 6026] close(22 [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6028] <... close resumed>) = 0 [pid 6026] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6029] <... openat resumed>) = 3 [pid 6028] close(8 [pid 6026] close(23 [pid 5873] getdents64(3, [pid 6029] write(3, "1000", 4 [pid 6028] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6026] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6029] <... write resumed>) = 4 [pid 6028] close(9 [pid 6026] close(24 [pid 6029] close(3 [pid 6026] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] umount2("./27/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6029] <... close resumed>) = 0 [pid 6028] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6026] close(25 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6029] read(200, [pid 6028] close(10 [pid 6026] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6028] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6028] close(11 [pid 6029] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6028] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6026] close(26 [pid 5873] newfstatat(AT_FDCWD, "./27/binderfs", [pid 6029] symlink("/dev/binderfs", "./binderfs" [pid 6028] close(12 [pid 6026] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6029] <... symlink resumed>) = 0 [pid 6028] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6026] close(27 [pid 5873] unlink("./27/binderfs" [pid 6028] close(13 [pid 6029] write(1, "executing program\n", 18executing program [pid 6028] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6026] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... unlink resumed>) = 0 [pid 6029] <... write resumed>) = 18 [pid 6028] close(14 [pid 6026] close(28 [pid 6029] perf_event_open( [pid 6028] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6026] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] umount2("./27/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6026] close(29 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6026] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] newfstatat(AT_FDCWD, "./27/cgroup.net", [pid 6028] close(15 [pid 6026] exit_group(0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6028] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6026] <... exit_group resumed>) = ? [pid 5873] unlink("./27/cgroup.net" [pid 6028] close(16) = -1 EBADF (Bad file descriptor) [pid 5873] <... unlink resumed>) = 0 [pid 6028] close(17 [pid 5873] umount2("./27/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6028] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6028] close(18 [pid 5873] newfstatat(AT_FDCWD, "./27/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] unlink("./27/cgroup.cpu" [pid 6028] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... unlink resumed>) = 0 [pid 6028] close(19 [pid 6026] +++ exited with 0 +++ [pid 6028] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=30, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6028] close(20) = -1 EBADF (Bad file descriptor) [pid 5876] restart_syscall(<... resuming interrupted clone ...> [pid 6028] close(21) = -1 EBADF (Bad file descriptor) [pid 5873] umount2("./27/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6028] close(22) = -1 EBADF (Bad file descriptor) [pid 6028] close(23) = -1 EBADF (Bad file descriptor) [pid 6028] close(24 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6028] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] newfstatat(AT_FDCWD, "./27/cgroup", [pid 6028] close(25 [pid 5876] <... restart_syscall resumed>) = 0 [pid 6028] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6028] close(26 [pid 5873] unlink("./27/cgroup" [pid 6028] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./28", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... unlink resumed>) = 0 [pid 6028] close(27 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] getdents64(3, [pid 6028] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6028] close(28 [pid 5876] openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5873] close(3) = 0 [pid 5876] <... openat resumed>) = 3 [pid 6028] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] rmdir("./27" [pid 6028] close(29 [pid 5876] newfstatat(3, "", [pid 5873] <... rmdir resumed>) = 0 [pid 5873] mkdir("./28", 0777 [pid 6028] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5873] <... mkdir resumed>) = 0 [pid 6028] exit_group(0 [pid 5876] getdents64(3, [pid 6028] <... exit_group resumed>) = ? [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5876] umount2("./28/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 6030 attached [pid 6030] set_robust_list(0x5555947fb660, 24) = 0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 30 [pid 6030] chdir("./28" [pid 5876] newfstatat(AT_FDCWD, "./28/binderfs", [pid 6030] <... chdir resumed>) = 0 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] unlink("./28/binderfs" [pid 6030] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5876] <... unlink resumed>) = 0 [pid 6030] <... prctl resumed>) = 0 [pid 6030] setpgid(0, 0 [pid 6028] +++ exited with 0 +++ [pid 5876] umount2("./28/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6030] <... setpgid resumed>) = 0 [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=30, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6030] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5877] restart_syscall(<... resuming interrupted clone ...> [pid 5876] newfstatat(AT_FDCWD, "./28/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] unlink("./28/cgroup.net") = 0 [pid 6030] <... symlink resumed>) = 0 [pid 6029] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6027] <... close resumed>) = 0 [pid 5877] <... restart_syscall resumed>) = 0 [pid 5876] umount2("./28/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6030] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 6029] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6027] close(4 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6030] <... symlink resumed>) = 0 [pid 5876] newfstatat(AT_FDCWD, "./28/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6029] <... bpf resumed>) = 4 [pid 6027] <... close resumed>) = 0 [pid 5876] unlink("./28/cgroup.cpu" [pid 6030] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 6029] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6027] close(5 [pid 5876] <... unlink resumed>) = 0 [pid 6030] <... symlink resumed>) = 0 [pid 5876] umount2("./28/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6030] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6027] <... close resumed>) = 0 [pid 5877] umount2("./28", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6030] <... openat resumed>) = 3 [pid 6029] <... bpf resumed>) = 5 [pid 6027] close(6 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6030] write(3, "1000", 4 [pid 5877] openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5876] newfstatat(AT_FDCWD, "./28/cgroup", [pid 6030] <... write resumed>) = 4 [pid 6029] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5877] <... openat resumed>) = 3 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6030] close(3 [pid 6027] <... close resumed>) = 0 [pid 5877] newfstatat(3, "", [pid 6030] <... close resumed>) = 0 [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5876] unlink("./28/cgroup" [pid 6030] read(200, [pid 6027] close(7 [pid 5877] getdents64(3, [pid 5876] <... unlink resumed>) = 0 [pid 6030] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5876] getdents64(3, [pid 6030] symlink("/dev/binderfs", "./binderfs" [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6030] <... symlink resumed>) = 0 [pid 6029] <... bpf resumed>) = 6 [pid 6027] <... close resumed>) = 0 [pid 5877] umount2("./28/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] close(3executing program [pid 6027] close(8 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6030] write(1, "executing program\n", 18 [pid 6029] perf_event_open( [pid 6027] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./28/binderfs", [pid 5876] <... close resumed>) = 0 [pid 6030] <... write resumed>) = 18 [pid 5876] rmdir("./28" [pid 6030] perf_event_open( [pid 6027] close(9 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] <... rmdir resumed>) = 0 [pid 6029] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6027] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./28/binderfs" [pid 6030] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6029] close(3 [pid 6027] close(10 [pid 5876] mkdir("./29", 0777 [pid 6030] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6027] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 5876] <... mkdir resumed>) = 0 [pid 6030] <... bpf resumed>) = 4 [pid 6029] <... close resumed>) = 0 [pid 6027] close(11 [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6030] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6029] close(4 [pid 6027] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./28/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6029] <... close resumed>) = 0 [pid 6027] close(12 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6029] close(5 [pid 6027] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./28/cgroup.net", [pid 6029] <... close resumed>) = 0 [pid 6027] close(13 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6029] close(6 [pid 6027] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6030] <... bpf resumed>) = 5 [pid 6029] <... close resumed>) = 0 [pid 6027] close(14 [pid 5877] unlink("./28/cgroup.net" [pid 6027] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 6027] close(15 [pid 6029] close(7 [pid 6027] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./28/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6029] <... close resumed>) = 0 [pid 6029] close(8 [pid 6027] close(16 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6029] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6027] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./28/cgroup.cpu", [pid 6029] close(9 [pid 6027] close(17 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6029] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6027] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6029] close(10 [pid 6027] close(18 [pid 5877] unlink("./28/cgroup.cpu"./strace-static-x86_64: Process 6031 attached [pid 6029] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6027] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 6031] set_robust_list(0x5555947fb660, 24 [pid 6030] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6029] close(11 [pid 6027] close(19 [pid 6031] <... set_robust_list resumed>) = 0 [pid 6029] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6027] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./28/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 31 [pid 6031] chdir("./29" [pid 6030] <... bpf resumed>) = 6 [pid 6031] <... chdir resumed>) = 0 [pid 6030] perf_event_open( [pid 6029] close(12 [pid 6027] close(20 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6031] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6030] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6029] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6027] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./28/cgroup", [pid 6031] <... prctl resumed>) = 0 [pid 6030] close(3 [pid 6029] close(13 [pid 6027] close(21 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6031] setpgid(0, 0 [pid 6029] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6027] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./28/cgroup" [pid 6031] <... setpgid resumed>) = 0 [pid 6029] close(14 [pid 6027] close(22 [pid 5877] <... unlink resumed>) = 0 [pid 6029] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6027] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6029] close(15 [pid 6027] close(23 [pid 5877] getdents64(3, [pid 6029] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6027] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6029] close(16 [pid 6027] close(24 [pid 5877] close(3 [pid 6031] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 6029] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6027] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... close resumed>) = 0 [pid 5877] rmdir("./28" [pid 6029] close(17 [pid 6027] close(25 [pid 5877] <... rmdir resumed>) = 0 [pid 5877] mkdir("./29", 0777 [pid 6031] <... symlink resumed>) = 0 [pid 6029] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6027] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6031] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu") = 0 [pid 6029] close(18 [pid 6027] close(26 [pid 5877] <... mkdir resumed>) = 0 [pid 6031] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 6029] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6027] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6031] <... symlink resumed>) = 0 [pid 6029] close(19 [pid 6031] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6029] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6027] close(27 [pid 6029] close(20 [pid 6027] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6029] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6027] close(28 [pid 6029] close(21 [pid 6027] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6029] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6027] close(29 [pid 6029] close(22 [pid 6027] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6029] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6029] close(23./strace-static-x86_64: Process 6032 attached ) = -1 EBADF (Bad file descriptor) [pid 6027] exit_group(0 [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 31 [pid 6032] set_robust_list(0x5555947fb660, 24 [pid 6029] close(24 [pid 6032] <... set_robust_list resumed>) = 0 [pid 6029] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6027] <... exit_group resumed>) = ? [pid 6031] <... openat resumed>) = 3 [pid 6029] close(25 [pid 6031] write(3, "1000", 4) = 4 [pid 6031] close(3) = 0 [pid 6031] read(200, 0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6031] symlink("/dev/binderfs", "./binderfs" [pid 6032] chdir("./29" [pid 6030] <... close resumed>) = 0 [pid 6029] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6027] +++ exited with 0 +++ [pid 6032] <... chdir resumed>) = 0 [pid 6031] <... symlink resumed>) = 0 [pid 6030] close(4 [pid 6029] close(26 [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=28, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- executing program [pid 6032] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6031] write(1, "executing program\n", 18 [pid 6029] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6032] <... prctl resumed>) = 0 [pid 6031] <... write resumed>) = 18 [pid 6030] <... close resumed>) = 0 [pid 6029] close(27 [pid 6032] setpgid(0, 0 [pid 6031] perf_event_open( [pid 6030] close(5 [pid 6032] <... setpgid resumed>) = 0 [pid 6029] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./26", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6031] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6029] close(28 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6030] <... close resumed>) = 0 [pid 6029] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6032] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5874] openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6031] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6030] close(6 [pid 6029] close(29 [pid 6032] <... symlink resumed>) = 0 [pid 6031] <... bpf resumed>) = 4 [pid 6029] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... openat resumed>) = 3 [pid 6032] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 6031] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6030] <... close resumed>) = 0 [pid 6029] exit_group(0 [pid 5874] newfstatat(3, "", [pid 6032] <... symlink resumed>) = 0 [pid 6029] <... exit_group resumed>) = ? [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6032] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 6031] <... bpf resumed>) = 5 [pid 6030] close(7 [pid 6029] +++ exited with 0 +++ [pid 5874] getdents64(3, [pid 6030] <... close resumed>) = 0 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6030] close(8 [pid 6032] <... symlink resumed>) = 0 [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=30, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5874] umount2("./26/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6031] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6030] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] newfstatat(AT_FDCWD, "./26/binderfs", [pid 6032] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6030] close(9 [pid 5874] unlink("./26/binderfs") = 0 [pid 5874] umount2("./26/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6030] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6030] close(10 [pid 5875] umount2("./28", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6030] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6032] <... openat resumed>) = 3 [pid 6031] <... bpf resumed>) = 6 [pid 6030] close(11 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] newfstatat(AT_FDCWD, "./26/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6030] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6031] perf_event_open( [pid 6030] close(12 [pid 5875] openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5874] unlink("./26/cgroup.net" [pid 6032] write(3, "1000", 4 [pid 6030] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... openat resumed>) = 3 [pid 5874] <... unlink resumed>) = 0 [pid 5874] umount2("./26/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5874] newfstatat(AT_FDCWD, "./26/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6030] close(13 [pid 5874] unlink("./26/cgroup.cpu" [pid 6031] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5874] <... unlink resumed>) = 0 [pid 6032] <... write resumed>) = 4 [pid 6030] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./26/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6031] close(3 [pid 5875] newfstatat(3, "", [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6032] close(3 [pid 6030] close(14 [pid 5874] newfstatat(AT_FDCWD, "./26/cgroup", [pid 6032] <... close resumed>) = 0 [pid 6030] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6032] read(200, [pid 6030] close(15 [pid 5874] unlink("./26/cgroup" [pid 6032] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6030] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] getdents64(3, [pid 5874] <... unlink resumed>) = 0 [pid 6030] close(16 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5874] getdents64(3, [pid 6032] symlink("/dev/binderfs", "./binderfs" [pid 6030] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./28/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5874] close(3) = 0 [pid 5874] rmdir("./26" [pid 6030] close(17 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] <... rmdir resumed>) = 0 [pid 6030] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(AT_FDCWD, "./28/binderfs", [pid 6030] close(18) = -1 EBADF (Bad file descriptor) [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] mkdir("./27", 0777 [pid 6032] <... symlink resumed>) = 0 executing program [pid 6032] write(1, "executing program\n", 18 [pid 5875] unlink("./28/binderfs" [pid 6030] close(19) = -1 EBADF (Bad file descriptor) [pid 5874] <... mkdir resumed>) = 0 [pid 6032] <... write resumed>) = 18 [pid 6030] close(20 [pid 5875] <... unlink resumed>) = 0 [pid 6032] perf_event_open( [pid 6030] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6030] close(21 [pid 5875] umount2("./28/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6030] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6030] close(22 [pid 5875] newfstatat(AT_FDCWD, "./28/cgroup.net", [pid 6030] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6030] close(23 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6030] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6030] close(24 [pid 5875] unlink("./28/cgroup.net" [pid 6030] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 [pid 6032] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6031] <... close resumed>) = 0 [pid 6030] close(25 [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6032] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6030] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./28/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6032] <... bpf resumed>) = 4 [pid 6030] close(26 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6032] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6030] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(AT_FDCWD, "./28/cgroup.cpu", ./strace-static-x86_64: Process 6033 attached [pid 6031] close(4 [pid 6030] close(27 [pid 6033] set_robust_list(0x5555947fb660, 24 [pid 6031] <... close resumed>) = 0 [pid 6030] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6033] <... set_robust_list resumed>) = 0 [pid 6032] <... bpf resumed>) = 5 [pid 6031] close(5 [pid 6030] close(28 [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 29 [pid 6033] chdir("./27" [pid 6032] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6030] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] unlink("./28/cgroup.cpu" [pid 6033] <... chdir resumed>) = 0 [pid 6032] <... bpf resumed>) = 6 [pid 6031] <... close resumed>) = 0 [pid 6030] close(29 [pid 6033] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6032] perf_event_open( [pid 6031] close(6 [pid 6030] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 [pid 6033] <... prctl resumed>) = 0 [pid 6032] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6030] exit_group(0 [pid 6032] close(3 [pid 5875] umount2("./28/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6030] <... exit_group resumed>) = ? [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6033] setpgid(0, 0) = 0 [pid 6033] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 6030] +++ exited with 0 +++ [pid 5875] newfstatat(AT_FDCWD, "./28/cgroup", [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=30, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6033] <... symlink resumed>) = 0 [pid 5875] unlink("./28/cgroup" [pid 6033] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5875] <... unlink resumed>) = 0 [pid 6033] <... symlink resumed>) = 0 [pid 5875] getdents64(3, [pid 5873] umount2("./28", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6031] <... close resumed>) = 0 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6033] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 6031] close(7 [pid 5875] close(3 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6033] <... symlink resumed>) = 0 [pid 5873] openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6031] <... close resumed>) = 0 [pid 5875] <... close resumed>) = 0 [pid 5873] <... openat resumed>) = 3 [pid 6033] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6031] close(8 [pid 5875] rmdir("./28" [pid 5873] newfstatat(3, "", [pid 6033] <... openat resumed>) = 3 [pid 6031] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... rmdir resumed>) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6033] write(3, "1000", 4 [pid 6031] close(9 [pid 5875] mkdir("./29", 0777 [pid 6031] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... mkdir resumed>) = 0 [pid 6033] <... write resumed>) = 4 [pid 5873] getdents64(3, [pid 6033] close(3 [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6033] <... close resumed>) = 0 [pid 6031] close(10 [pid 6033] read(200, [pid 5873] umount2("./28/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6033] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6031] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6033] symlink("/dev/binderfs", "./binderfs" [pid 6031] close(11 [pid 5873] newfstatat(AT_FDCWD, "./28/binderfs", [pid 6033] <... symlink resumed>) = 0 [pid 6031] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 6034 attached executing program [pid 6033] write(1, "executing program\n", 18 [pid 6031] close(12 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6033] <... write resumed>) = 18 [pid 6031] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6034] set_robust_list(0x5555947fb660, 24 [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 31 [pid 6034] <... set_robust_list resumed>) = 0 [pid 6031] close(13 [pid 5873] unlink("./28/binderfs" [pid 6031] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6031] close(14 [pid 5873] <... unlink resumed>) = 0 [pid 6033] perf_event_open( [pid 6031] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6034] chdir("./29" [pid 6031] close(15 [pid 5873] umount2("./28/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6034] <... chdir resumed>) = 0 [pid 6031] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6031] close(16 [pid 6034] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6031] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6031] close(17) = -1 EBADF (Bad file descriptor) [pid 6031] close(18 [pid 6034] <... prctl resumed>) = 0 [pid 6031] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] newfstatat(AT_FDCWD, "./28/cgroup.net", [pid 6034] setpgid(0, 0) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6034] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5873] unlink("./28/cgroup.net") = 0 [pid 6033] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6034] <... symlink resumed>) = 0 [pid 6032] <... close resumed>) = 0 [pid 6033] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6031] close(19 [pid 5873] umount2("./28/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6034] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 6032] close(4 [pid 6031] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6031] close(20 [pid 5873] newfstatat(AT_FDCWD, "./28/cgroup.cpu", [pid 6031] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6032] <... close resumed>) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6033] <... bpf resumed>) = 4 [pid 6031] close(21 [pid 5873] unlink("./28/cgroup.cpu" [pid 6034] <... symlink resumed>) = 0 [pid 5873] <... unlink resumed>) = 0 [pid 6034] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 6033] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6032] close(5 [pid 6031] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6034] <... symlink resumed>) = 0 [pid 6032] <... close resumed>) = 0 [pid 6031] close(22 [pid 5873] umount2("./28/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6034] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6032] close(6 [pid 6031] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6034] <... openat resumed>) = 3 [pid 5873] newfstatat(AT_FDCWD, "./28/cgroup", [pid 6032] <... close resumed>) = 0 [pid 6031] close(23 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6034] write(3, "1000", 4 [pid 6032] close(7 [pid 6031] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] unlink("./28/cgroup" [pid 6034] <... write resumed>) = 4 [pid 6033] <... bpf resumed>) = 5 [pid 6032] <... close resumed>) = 0 [pid 6031] close(24 [pid 6034] close(3 [pid 6033] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6032] close(8 [pid 6031] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... unlink resumed>) = 0 [pid 6034] <... close resumed>) = 0 [pid 6033] <... bpf resumed>) = 6 [pid 6032] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6031] close(25 [pid 5873] getdents64(3, [pid 6034] read(200, [pid 6033] perf_event_open( [pid 6032] close(9 [pid 6031] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6034] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6033] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6032] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6034] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6033] close(3 [pid 6032] close(10 [pid 6031] close(26 [pid 5873] close(3 executing program [pid 6034] write(1, "executing program\n", 18 [pid 6032] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... close resumed>) = 0 [pid 6031] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6034] <... write resumed>) = 18 [pid 6032] close(11 [pid 5873] rmdir("./28" [pid 6034] perf_event_open( [pid 6031] close(27 [pid 5873] <... rmdir resumed>) = 0 [pid 6032] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6031] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6032] close(12 [pid 6031] close(28 [pid 6032] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6031] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6032] close(13 [pid 5873] mkdir("./29", 0777 [pid 6031] close(29 [pid 6032] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... mkdir resumed>) = 0 [pid 6031] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6032] close(14 [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6032] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6031] exit_group(0 [pid 6032] close(15) = -1 EBADF (Bad file descriptor) [pid 6032] close(16) = -1 EBADF (Bad file descriptor) [pid 6031] <... exit_group resumed>) = ? [pid 6032] close(17./strace-static-x86_64: Process 6035 attached ) = -1 EBADF (Bad file descriptor) [pid 6035] set_robust_list(0x5555947fb660, 24 [pid 6032] close(18 [pid 6035] <... set_robust_list resumed>) = 0 [pid 6032] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 31 [pid 6032] close(19 [pid 6031] +++ exited with 0 +++ [pid 6032] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6032] close(20 [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=31, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 6032] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6032] close(21 [pid 5876] restart_syscall(<... resuming interrupted clone ...> [pid 6032] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6032] close(22 [pid 6035] chdir("./29" [pid 6032] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6035] <... chdir resumed>) = 0 [pid 6032] close(23 [pid 6035] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6032] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6035] <... prctl resumed>) = 0 [pid 6032] close(24) = -1 EBADF (Bad file descriptor) [pid 6032] close(25) = -1 EBADF (Bad file descriptor) [pid 6032] close(26) = -1 EBADF (Bad file descriptor) [pid 6035] setpgid(0, 0 [pid 6032] close(27 [pid 6035] <... setpgid resumed>) = 0 [pid 6032] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6032] close(28 [pid 5876] <... restart_syscall resumed>) = 0 [pid 6032] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6032] close(29) = -1 EBADF (Bad file descriptor) [pid 6032] exit_group(0) = ? [pid 5876] umount2("./29", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6035] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 6035] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 6032] +++ exited with 0 +++ [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6035] <... symlink resumed>) = 0 [pid 5876] openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5876] newfstatat(3, "", [pid 6035] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=31, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6034] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5877] restart_syscall(<... resuming interrupted clone ...> [pid 5876] getdents64(3, [pid 6033] <... close resumed>) = 0 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6033] close(4 [pid 5876] umount2("./29/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6035] <... symlink resumed>) = 0 [pid 6034] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6033] <... close resumed>) = 0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6035] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6034] <... bpf resumed>) = 4 [pid 5877] <... restart_syscall resumed>) = 0 [pid 5876] newfstatat(AT_FDCWD, "./29/binderfs", [pid 6034] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6033] close(5 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6035] <... openat resumed>) = 3 [pid 5876] unlink("./29/binderfs" [pid 6035] write(3, "1000", 4 [pid 6033] <... close resumed>) = 0 [pid 5876] <... unlink resumed>) = 0 [pid 6035] <... write resumed>) = 4 [pid 6033] close(6 [pid 6035] close(3 [pid 5876] umount2("./29/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5877] umount2("./29", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6033] <... close resumed>) = 0 [pid 5877] openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6035] <... close resumed>) = 0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6033] close(7 [pid 6035] read(200, [pid 5876] newfstatat(AT_FDCWD, "./29/cgroup.net", [pid 6035] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6035] symlink("/dev/binderfs", "./binderfs" [pid 6033] <... close resumed>) = 0 [pid 5877] <... openat resumed>) = 3 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6035] <... symlink resumed>) = 0 [pid 6034] <... bpf resumed>) = 5 [pid 6033] close(8 [pid 6035] write(1, "executing program\n", 18 [pid 6034] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24executing program [pid 6033] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(3, "", [pid 5876] unlink("./29/cgroup.net" [pid 6035] <... write resumed>) = 18 [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6034] <... bpf resumed>) = 6 [pid 6033] close(9 [pid 5877] getdents64(3, [pid 5876] <... unlink resumed>) = 0 [pid 6035] perf_event_open( [pid 6034] perf_event_open( [pid 6033] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6033] close(10 [pid 5877] umount2("./29/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] umount2("./29/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6033] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] newfstatat(AT_FDCWD, "./29/binderfs", [pid 6035] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6034] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6033] close(11 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] unlink("./29/binderfs") = 0 [pid 6035] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6033] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(AT_FDCWD, "./29/cgroup.cpu", [pid 6035] <... bpf resumed>) = 4 [pid 6034] close(3 [pid 6033] close(12 [pid 5877] umount2("./29/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6035] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6033] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6034] <... close resumed>) = 0 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] unlink("./29/cgroup.cpu" [pid 6033] close(13 [pid 5877] newfstatat(AT_FDCWD, "./29/cgroup.net", [pid 6033] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] <... unlink resumed>) = 0 [pid 6034] close(4) = 0 [pid 6033] close(14 [pid 5877] unlink("./29/cgroup.net" [pid 5876] umount2("./29/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6035] <... bpf resumed>) = 5 [pid 6034] close(5 [pid 6033] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6035] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24) = 6 [pid 6035] perf_event_open({type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6035] close(3 [pid 5877] umount2("./29/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] newfstatat(AT_FDCWD, "./29/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6033] close(15 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] unlink("./29/cgroup" [pid 6034] <... close resumed>) = 0 [pid 6033] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./29/cgroup.cpu", [pid 6035] <... close resumed>) = 0 [pid 6033] close(16 [pid 5876] <... unlink resumed>) = 0 [pid 6035] close(4 [pid 6033] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] getdents64(3, [pid 6035] <... close resumed>) = 0 [pid 6034] close(6 [pid 6033] close(17 [pid 6034] <... close resumed>) = 0 [pid 5877] unlink("./29/cgroup.cpu" [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6035] close(5 [pid 6034] close(7 [pid 6033] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] close(3 [pid 6034] <... close resumed>) = 0 [pid 6033] close(18 [pid 5876] <... close resumed>) = 0 [pid 6034] close(8 [pid 6033] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] rmdir("./29" [pid 6034] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6033] close(19 [pid 5876] <... rmdir resumed>) = 0 [pid 6035] <... close resumed>) = 0 [pid 6034] close(9 [pid 6033] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] mkdir("./30", 0777 [pid 6035] close(6 [pid 6034] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6033] close(20 [pid 5877] <... unlink resumed>) = 0 [pid 5876] <... mkdir resumed>) = 0 [pid 6034] close(10 [pid 6033] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6034] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6033] close(21 [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6034] close(11 [pid 6033] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6034] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6033] close(22 [pid 6034] close(12 [pid 6033] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6034] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6033] close(23 [pid 6034] close(13 [pid 6033] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6033] close(24 [pid 6034] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6033] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6034] close(14 [pid 6033] close(25 [pid 6034] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6033] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6035] <... close resumed>) = 0 [pid 6034] close(15 [pid 6033] close(26 [pid 5877] umount2("./29/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 6036 attached [pid 6034] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6033] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6036] set_robust_list(0x5555947fb660, 24 [pid 6034] close(16 [pid 6033] close(27 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6036] <... set_robust_list resumed>) = 0 [pid 6034] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6033] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 32 [pid 6036] chdir("./30" [pid 6035] close(7 [pid 6033] close(28 [pid 5877] newfstatat(AT_FDCWD, "./29/cgroup", [pid 6034] close(17 [pid 6033] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6034] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6033] close(29 [pid 6034] close(18 [pid 6033] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6036] <... chdir resumed>) = 0 [pid 6035] <... close resumed>) = 0 [pid 6034] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6033] exit_group(0 [pid 5877] unlink("./29/cgroup" [pid 6035] close(8 [pid 6034] close(19 [pid 6033] <... exit_group resumed>) = ? [pid 6036] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6035] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6034] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 6036] <... prctl resumed>) = 0 [pid 6035] close(9 [pid 6034] close(20 [pid 6036] setpgid(0, 0 [pid 6035] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6034] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] getdents64(3, [pid 6036] <... setpgid resumed>) = 0 [pid 6035] close(10 [pid 6034] close(21 [pid 6033] +++ exited with 0 +++ [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6035] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6034] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] close(3 [pid 6036] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 6035] close(11 [pid 6034] close(22 [pid 5877] <... close resumed>) = 0 [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=29, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6036] <... symlink resumed>) = 0 [pid 6035] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6034] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] rmdir("./29" [pid 5874] restart_syscall(<... resuming interrupted clone ...> [pid 6036] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 6035] close(12 [pid 6034] close(23 [pid 5877] <... rmdir resumed>) = 0 [pid 6036] <... symlink resumed>) = 0 [pid 6035] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] mkdir("./30", 0777 [pid 6035] close(13 [pid 5877] <... mkdir resumed>) = 0 [pid 6036] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 6035] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6034] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6036] <... symlink resumed>) = 0 [pid 6035] close(14 [pid 6034] close(24 [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6036] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6035] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6034] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6036] <... openat resumed>) = 3 [pid 6034] close(25./strace-static-x86_64: Process 6037 attached [pid 6035] close(15 [pid 6037] set_robust_list(0x5555947fb660, 24 [pid 6036] write(3, "1000", 4 [pid 6035] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6034] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 32 [pid 6037] <... set_robust_list resumed>) = 0 [pid 6036] <... write resumed>) = 4 [pid 6034] close(26 [pid 6036] close(3 [pid 6034] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6036] <... close resumed>) = 0 [pid 6034] close(27 [pid 6036] read(200, [pid 6034] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6036] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6034] close(28 [pid 6036] symlink("/dev/binderfs", "./binderfs" [pid 6034] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6036] <... symlink resumed>) = 0 [pid 6035] close(16 [pid 6037] chdir("./30" [pid 6035] <... close resumed>) = -1 EBADF (Bad file descriptor) executing program [pid 6036] write(1, "executing program\n", 18 [pid 6035] close(17 [pid 6034] close(29 [pid 6037] <... chdir resumed>) = 0 [pid 6036] <... write resumed>) = 18 [pid 6035] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6034] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... restart_syscall resumed>) = 0 [pid 6037] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6036] perf_event_open( [pid 6035] close(18 [pid 6034] exit_group(0 [pid 6037] <... prctl resumed>) = 0 [pid 6035] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6034] <... exit_group resumed>) = ? [pid 6037] setpgid(0, 0 [pid 6036] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6035] close(19 [pid 5874] umount2("./27", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6037] <... setpgid resumed>) = 0 [pid 6036] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6035] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6037] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 6036] <... bpf resumed>) = 4 [pid 6034] +++ exited with 0 +++ [pid 5874] openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6036] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6037] <... symlink resumed>) = 0 [pid 6035] close(20 [pid 5874] <... openat resumed>) = 3 [pid 6036] <... bpf resumed>) = 5 [pid 6035] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=31, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5874] newfstatat(3, "", [pid 6037] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 6035] close(21 [pid 5875] restart_syscall(<... resuming interrupted clone ...> [pid 6035] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6035] close(22) = -1 EBADF (Bad file descriptor) [pid 5874] getdents64(3, [pid 6037] <... symlink resumed>) = 0 [pid 6036] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6035] close(23 [pid 5875] <... restart_syscall resumed>) = 0 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6037] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 6036] <... bpf resumed>) = 6 [pid 6035] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6036] perf_event_open( [pid 5874] umount2("./27/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6037] <... symlink resumed>) = 0 [pid 6036] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6035] close(24 [pid 6036] close(3 [pid 6037] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6035] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6035] close(25 [pid 5874] newfstatat(AT_FDCWD, "./27/binderfs", [pid 6035] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6037] <... openat resumed>) = 3 [pid 6035] close(26 [pid 5875] umount2("./29", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6037] write(3, "1000", 4 [pid 6035] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] unlink("./27/binderfs" [pid 6037] <... write resumed>) = 4 [pid 6035] close(27 [pid 5875] openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 6037] close(3 [pid 6035] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... unlink resumed>) = 0 [pid 6037] <... close resumed>) = 0 [pid 6035] close(28 [pid 5875] newfstatat(3, "", [pid 5874] umount2("./27/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6037] read(200, [pid 6035] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] newfstatat(AT_FDCWD, "./27/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] unlink("./27/cgroup.net" [pid 6037] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6035] close(29 [pid 5875] getdents64(3, [pid 6037] symlink("/dev/binderfs", "./binderfs" [pid 6035] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5874] <... unlink resumed>) = 0 [pid 6037] <... symlink resumed>) = 0 [pid 6035] exit_group(0 [pid 5875] umount2("./29/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6037] write(1, "executing program\n", 18 [pid 6036] <... close resumed>) = 0 [pid 6035] <... exit_group resumed>) = ? [pid 5874] umount2("./27/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6036] close(4) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) executing program [pid 6036] close(5 [pid 6037] <... write resumed>) = 18 [pid 6036] <... close resumed>) = 0 [pid 6035] +++ exited with 0 +++ [pid 5875] newfstatat(AT_FDCWD, "./29/binderfs", [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6037] perf_event_open( [pid 6036] close(6) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] newfstatat(AT_FDCWD, "./27/cgroup.cpu", [pid 6037] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5875] unlink("./29/binderfs" [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=31, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6037] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6036] close(7 [pid 5875] <... unlink resumed>) = 0 [pid 5874] unlink("./27/cgroup.cpu" [pid 6036] <... close resumed>) = 0 [pid 5874] <... unlink resumed>) = 0 [pid 5873] restart_syscall(<... resuming interrupted clone ...> [pid 6036] close(8) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./29/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] umount2("./27/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6037] <... bpf resumed>) = 4 [pid 6036] close(9 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6037] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6036] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6036] close(10 [pid 5875] newfstatat(AT_FDCWD, "./29/cgroup.net", [pid 5874] newfstatat(AT_FDCWD, "./27/cgroup", [pid 6037] <... bpf resumed>) = 5 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... restart_syscall resumed>) = 0 [pid 6037] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6036] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] unlink("./29/cgroup.net" [pid 5874] unlink("./27/cgroup" [pid 6036] close(11) = -1 EBADF (Bad file descriptor) [pid 5874] <... unlink resumed>) = 0 [pid 6036] close(12 [pid 5875] <... unlink resumed>) = 0 [pid 6036] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./29/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] getdents64(3, [pid 6037] <... bpf resumed>) = 6 [pid 6036] close(13 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6036] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6036] close(14) = -1 EBADF (Bad file descriptor) [pid 6036] close(15 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] close(3 [pid 6037] perf_event_open( [pid 6036] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(AT_FDCWD, "./29/cgroup.cpu", [pid 5874] <... close resumed>) = 0 [pid 5873] umount2("./29", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6037] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6036] close(16 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] rmdir("./27" [pid 6037] close(3 [pid 6036] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] unlink("./29/cgroup.cpu" [pid 5874] <... rmdir resumed>) = 0 [pid 6036] close(17 [pid 5873] openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6036] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 [pid 6036] close(18) = -1 EBADF (Bad file descriptor) [pid 6036] close(19) = -1 EBADF (Bad file descriptor) [pid 6036] close(20) = -1 EBADF (Bad file descriptor) [pid 6036] close(21) = -1 EBADF (Bad file descriptor) [pid 6036] close(22) = -1 EBADF (Bad file descriptor) [pid 6036] close(23) = -1 EBADF (Bad file descriptor) [pid 6036] close(24) = -1 EBADF (Bad file descriptor) [pid 6036] close(25 [pid 5875] umount2("./29/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] mkdir("./28", 0777 [pid 6036] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... openat resumed>) = 3 [pid 6036] close(26) = -1 EBADF (Bad file descriptor) [pid 6036] close(27 [pid 5874] <... mkdir resumed>) = 0 [pid 6036] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] newfstatat(3, "", [pid 6036] close(28 [pid 5875] newfstatat(AT_FDCWD, "./29/cgroup", [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6036] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6036] close(29 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] getdents64(3, ./strace-static-x86_64: Process 6038 attached [pid 6036] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6036] exit_group(0 [pid 6038] set_robust_list(0x5555947fb660, 24 [pid 5875] unlink("./29/cgroup" [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 30 [pid 5873] umount2("./29/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6038] <... set_robust_list resumed>) = 0 [pid 6036] <... exit_group resumed>) = ? [pid 5875] <... unlink resumed>) = 0 [pid 6037] <... close resumed>) = 0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] getdents64(3, [pid 5873] newfstatat(AT_FDCWD, "./29/binderfs", [pid 6037] close(4 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6037] <... close resumed>) = 0 [pid 5873] unlink("./29/binderfs" [pid 6038] chdir("./28" [pid 6037] close(5 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5873] <... unlink resumed>) = 0 [pid 6038] <... chdir resumed>) = 0 [pid 6037] <... close resumed>) = 0 [pid 6037] close(6 [pid 5873] umount2("./29/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6038] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6036] +++ exited with 0 +++ [pid 5875] close(3 [pid 6038] <... prctl resumed>) = 0 [pid 6037] <... close resumed>) = 0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6037] close(7 [pid 5873] newfstatat(AT_FDCWD, "./29/cgroup.net", [pid 6038] setpgid(0, 0 [pid 6037] <... close resumed>) = 0 [pid 5875] <... close resumed>) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6038] <... setpgid resumed>) = 0 [pid 6037] close(8 [pid 5875] rmdir("./29" [pid 6037] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] unlink("./29/cgroup.net" [pid 6038] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 6037] close(9 [pid 5873] <... unlink resumed>) = 0 [pid 5875] <... rmdir resumed>) = 0 [pid 6037] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] umount2("./29/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6038] <... symlink resumed>) = 0 [pid 6037] close(10 [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=32, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5875] mkdir("./30", 0777 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6037] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] newfstatat(AT_FDCWD, "./29/cgroup.cpu", [pid 6038] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 6037] close(11 [pid 5876] restart_syscall(<... resuming interrupted clone ...> [pid 5875] <... mkdir resumed>) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6037] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] unlink("./29/cgroup.cpu" [pid 6037] close(12 [pid 5873] <... unlink resumed>) = 0 [pid 6037] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] umount2("./29/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6037] close(13) = -1 EBADF (Bad file descriptor) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 6039 attached [pid 6037] close(14 [pid 6039] set_robust_list(0x5555947fb660, 24 [pid 6037] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] newfstatat(AT_FDCWD, "./29/cgroup", [pid 6039] <... set_robust_list resumed>) = 0 [pid 6037] close(15 [pid 6039] chdir("./30" [pid 6037] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6039] <... chdir resumed>) = 0 [pid 6037] close(16 [pid 6039] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6037] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] unlink("./29/cgroup" [pid 6039] <... prctl resumed>) = 0 [pid 6037] close(17 [pid 5873] <... unlink resumed>) = 0 [pid 6039] setpgid(0, 0 [pid 6038] <... symlink resumed>) = 0 [pid 6037] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... restart_syscall resumed>) = 0 [pid 6038] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 6039] <... setpgid resumed>) = 0 [pid 6037] close(18 [pid 5873] getdents64(3, [pid 6039] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 6038] <... symlink resumed>) = 0 [pid 6037] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6038] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6037] close(19 [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 32 [pid 5873] close(3 [pid 6039] <... symlink resumed>) = 0 [pid 6038] <... openat resumed>) = 3 [pid 6037] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... close resumed>) = 0 [pid 6039] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 6038] write(3, "1000", 4 [pid 6037] close(20 [pid 5873] rmdir("./29" [pid 6039] <... symlink resumed>) = 0 [pid 6037] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... rmdir resumed>) = 0 [pid 6039] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 6038] <... write resumed>) = 4 [pid 6037] close(21 [pid 5876] umount2("./30", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] mkdir("./30", 0777 [pid 6039] <... symlink resumed>) = 0 [pid 6038] close(3 [pid 6037] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6038] <... close resumed>) = 0 [pid 6037] close(22 [pid 5876] openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5873] <... mkdir resumed>) = 0 [pid 6039] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6038] read(200, [pid 6037] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6039] <... openat resumed>) = 3 [pid 6038] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6037] close(23 [pid 5876] <... openat resumed>) = 3 [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6039] write(3, "1000", 4 [pid 6038] symlink("/dev/binderfs", "./binderfs" [pid 6037] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(3, "", [pid 6039] <... write resumed>) = 4 [pid 6038] <... symlink resumed>) = 0 [pid 6037] close(24 [pid 6039] close(3 [pid 6037] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6037] close(25./strace-static-x86_64: Process 6040 attached [pid 6039] <... close resumed>) = 0 [pid 6037] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6040] set_robust_list(0x5555947fb660, 24 [pid 6039] read(200, [pid 6038] write(1, "executing program\n", 18 [pid 6037] close(26 [pid 5876] getdents64(3, [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 32 [pid 6040] <... set_robust_list resumed>) = 0 [pid 6039] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6037] <... close resumed>) = -1 EBADF (Bad file descriptor) executing program [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6040] chdir("./30" [pid 6039] symlink("/dev/binderfs", "./binderfs" [pid 6038] <... write resumed>) = 18 [pid 6037] close(27 [pid 5876] umount2("./30/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6040] <... chdir resumed>) = 0 [pid 6039] <... symlink resumed>) = 0 [pid 6038] perf_event_open( [pid 6037] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6037] close(28 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6040] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6039] write(1, "executing program\n", 18executing program ) = 18 [pid 5876] newfstatat(AT_FDCWD, "./30/binderfs", [pid 6039] perf_event_open( [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] unlink("./30/binderfs") = 0 [pid 5876] umount2("./30/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5876] newfstatat(AT_FDCWD, "./30/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] unlink("./30/cgroup.net" [pid 6040] <... prctl resumed>) = 0 [pid 6039] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6038] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6037] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 6037] close(29 [pid 6040] setpgid(0, 0 [pid 6037] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6040] <... setpgid resumed>) = 0 [pid 6039] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6038] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6037] exit_group(0 [pid 5876] umount2("./30/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6040] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 6039] <... bpf resumed>) = 4 [pid 6037] <... exit_group resumed>) = ? [pid 6040] <... symlink resumed>) = 0 [pid 6038] <... bpf resumed>) = 4 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6040] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 6039] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6038] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5876] newfstatat(AT_FDCWD, "./30/cgroup.cpu", [pid 6040] <... symlink resumed>) = 0 [pid 6039] <... bpf resumed>) = 5 [pid 6037] +++ exited with 0 +++ [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6040] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 6040] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6039] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6038] <... bpf resumed>) = 5 [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=32, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5876] unlink("./30/cgroup.cpu" [pid 6039] <... bpf resumed>) = 6 [pid 6038] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5877] restart_syscall(<... resuming interrupted clone ...> [pid 5876] <... unlink resumed>) = 0 [pid 6040] <... openat resumed>) = 3 [pid 6039] perf_event_open( [pid 6038] <... bpf resumed>) = 6 [pid 5877] <... restart_syscall resumed>) = 0 [pid 5876] umount2("./30/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6040] write(3, "1000", 4 [pid 6039] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6040] <... write resumed>) = 4 [pid 6039] close(3 [pid 6038] perf_event_open( [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6040] close(3 [pid 6039] <... close resumed>) = 0 [pid 6038] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6040] <... close resumed>) = 0 [pid 6040] read(200, [pid 6038] close(3 [pid 5877] umount2("./30", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] newfstatat(AT_FDCWD, "./30/cgroup", [pid 6040] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6039] close(4 [pid 6040] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6039] <... close resumed>) = 0 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6040] write(1, "executing program\n", 18executing program ) = 18 [pid 6040] perf_event_open({type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6039] close(5 [pid 6038] <... close resumed>) = 0 [pid 5877] openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5876] unlink("./30/cgroup" [pid 6040] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6039] <... close resumed>) = 0 [pid 6038] close(4 [pid 5877] <... openat resumed>) = 3 [pid 6040] <... bpf resumed>) = 4 [pid 5876] <... unlink resumed>) = 0 [pid 6038] <... close resumed>) = 0 [pid 6038] close(5) = 0 [pid 6038] close(6 [pid 6039] close(6 [pid 6038] <... close resumed>) = 0 [pid 5877] newfstatat(3, "", [pid 5876] getdents64(3, [pid 6040] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6038] close(7) = 0 [pid 6038] close(8) = -1 EBADF (Bad file descriptor) [pid 6038] close(9 [pid 6039] <... close resumed>) = 0 [pid 6038] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6038] close(10 [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6038] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6038] close(11) = -1 EBADF (Bad file descriptor) [pid 6038] close(12) = -1 EBADF (Bad file descriptor) [pid 6038] close(13) = -1 EBADF (Bad file descriptor) [pid 6038] close(14) = -1 EBADF (Bad file descriptor) [pid 6038] close(15) = -1 EBADF (Bad file descriptor) [pid 6038] close(16) = -1 EBADF (Bad file descriptor) [pid 6038] close(17) = -1 EBADF (Bad file descriptor) [pid 6038] close(18) = -1 EBADF (Bad file descriptor) [pid 6040] <... bpf resumed>) = 5 [pid 6038] close(19) = -1 EBADF (Bad file descriptor) [pid 6038] close(20) = -1 EBADF (Bad file descriptor) [pid 6038] close(21) = -1 EBADF (Bad file descriptor) [pid 6038] close(22 [pid 6039] close(7 [pid 6038] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6038] close(23 [pid 5877] getdents64(3, [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6038] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5876] close(3 [pid 6038] close(24 [pid 5877] umount2("./30/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6038] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... close resumed>) = 0 [pid 6038] close(25 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] rmdir("./30" [pid 6038] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./30/binderfs", [pid 6038] close(26) = -1 EBADF (Bad file descriptor) [pid 5876] <... rmdir resumed>) = 0 [pid 6038] close(27 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6038] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] mkdir("./31", 0777 [pid 6038] close(28) = -1 EBADF (Bad file descriptor) [pid 6038] close(29) = -1 EBADF (Bad file descriptor) [pid 6040] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6039] <... close resumed>) = 0 [pid 6038] exit_group(0 [pid 5876] <... mkdir resumed>) = 0 [pid 5877] unlink("./30/binderfs" [pid 6039] close(8 [pid 6038] <... exit_group resumed>) = ? [pid 6039] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6040] <... bpf resumed>) = 6 [pid 5877] umount2("./30/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 6041 attached [pid 6040] perf_event_open({type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6039] close(9 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6041] set_robust_list(0x5555947fb660, 24 [pid 6039] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./30/cgroup.net", [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 33 [pid 6041] <... set_robust_list resumed>) = 0 [pid 6040] close(3 [pid 6039] close(10 [pid 6038] +++ exited with 0 +++ [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6039] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./30/cgroup.net" [pid 6039] close(11 [pid 5877] <... unlink resumed>) = 0 [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=30, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6039] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./30/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] umount2("./28", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6039] close(12 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6039] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./30/cgroup.cpu", [pid 5874] openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6041] chdir("./31" [pid 6039] close(13 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] <... openat resumed>) = 3 [pid 6039] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./30/cgroup.cpu" [pid 5874] newfstatat(3, "", [pid 6041] <... chdir resumed>) = 0 [pid 6039] close(14 [pid 5877] <... unlink resumed>) = 0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6041] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6039] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./30/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] getdents64(3, [pid 6041] <... prctl resumed>) = 0 [pid 6039] close(15 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6041] setpgid(0, 0 [pid 6039] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./30/cgroup", [pid 5874] umount2("./28/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6041] <... setpgid resumed>) = 0 [pid 6039] close(16 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6039] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./30/cgroup" [pid 5874] newfstatat(AT_FDCWD, "./28/binderfs", [pid 6041] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 6039] close(17 [pid 5877] <... unlink resumed>) = 0 [pid 6039] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6039] close(18 [pid 5877] getdents64(3, [pid 6039] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6041] <... symlink resumed>) = 0 [pid 5874] unlink("./28/binderfs" [pid 6041] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 6039] close(19) = -1 EBADF (Bad file descriptor) [pid 5877] close(3 [pid 5874] <... unlink resumed>) = 0 [pid 6041] <... symlink resumed>) = 0 [pid 6039] close(20 [pid 5877] <... close resumed>) = 0 [pid 5874] umount2("./28/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6039] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] rmdir("./30" [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6039] close(21 [pid 5877] <... rmdir resumed>) = 0 [pid 6039] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6039] close(22 [pid 5877] mkdir("./31", 0777 [pid 5874] newfstatat(AT_FDCWD, "./28/cgroup.net", [pid 6039] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6041] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5877] <... mkdir resumed>) = 0 [pid 6039] close(23 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6041] <... symlink resumed>) = 0 [pid 6039] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5874] unlink("./28/cgroup.net" [pid 6041] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6039] close(24 [pid 5874] <... unlink resumed>) = 0 [pid 6041] <... openat resumed>) = 3 ./strace-static-x86_64: Process 6042 attached [pid 6040] <... close resumed>) = 0 [pid 6039] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./28/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6042] set_robust_list(0x5555947fb660, 24 [pid 6041] write(3, "1000", 4 [pid 6040] close(4 [pid 6039] close(25 [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 33 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6042] <... set_robust_list resumed>) = 0 [pid 6041] <... write resumed>) = 4 [pid 6040] <... close resumed>) = 0 [pid 6039] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] newfstatat(AT_FDCWD, "./28/cgroup.cpu", [pid 6039] close(26 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6041] close(3 [pid 6040] close(5 [pid 6039] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] unlink("./28/cgroup.cpu" [pid 6042] chdir("./31" [pid 6039] close(27 [pid 5874] <... unlink resumed>) = 0 [pid 6041] <... close resumed>) = 0 [pid 5874] umount2("./28/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5874] newfstatat(AT_FDCWD, "./28/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] unlink("./28/cgroup" [pid 6042] <... chdir resumed>) = 0 [pid 5874] <... unlink resumed>) = 0 [pid 6039] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] getdents64(3, executing program [pid 6042] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6041] read(200, [pid 6040] <... close resumed>) = 0 [pid 6039] close(28 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6040] close(6 [pid 6042] <... prctl resumed>) = 0 [pid 6041] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6039] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] close(3 [pid 6042] setpgid(0, 0 [pid 6041] symlink("/dev/binderfs", "./binderfs" [pid 6039] close(29 [pid 5874] <... close resumed>) = 0 [pid 6042] <... setpgid resumed>) = 0 [pid 6041] <... symlink resumed>) = 0 [pid 6040] <... close resumed>) = 0 [pid 6039] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] rmdir("./28" [pid 6041] write(1, "executing program\n", 18 [pid 6042] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 6041] <... write resumed>) = 18 [pid 6040] close(7 [pid 6039] exit_group(0 [pid 5874] <... rmdir resumed>) = 0 [pid 6042] <... symlink resumed>) = 0 [pid 6041] perf_event_open( [pid 6040] <... close resumed>) = 0 [pid 6039] <... exit_group resumed>) = ? [pid 5874] mkdir("./29", 0777 [pid 6042] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 6040] close(8 [pid 5874] <... mkdir resumed>) = 0 [pid 6042] <... symlink resumed>) = 0 [pid 6040] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6040] close(9) = -1 EBADF (Bad file descriptor) [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6040] close(10) = -1 EBADF (Bad file descriptor) [pid 6040] close(11) = -1 EBADF (Bad file descriptor) [pid 6040] close(12) = -1 EBADF (Bad file descriptor) [pid 6040] close(13) = -1 EBADF (Bad file descriptor) [pid 6040] close(14 [pid 6039] +++ exited with 0 +++ [pid 6042] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 6040] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=32, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6040] close(15 [pid 5875] restart_syscall(<... resuming interrupted clone ...> [pid 6040] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6040] close(16) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 6043 attached [pid 6042] <... symlink resumed>) = 0 [pid 6041] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6040] close(17 [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 31 [pid 6043] set_robust_list(0x5555947fb660, 24 [pid 6042] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6041] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6040] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6043] <... set_robust_list resumed>) = 0 [pid 6042] <... openat resumed>) = 3 [pid 6041] <... bpf resumed>) = 4 [pid 6040] close(18 [pid 6043] chdir("./29" [pid 6042] write(3, "1000", 4 [pid 6040] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... restart_syscall resumed>) = 0 [pid 6043] <... chdir resumed>) = 0 [pid 6042] <... write resumed>) = 4 [pid 6041] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6040] close(19 [pid 6043] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6042] close(3 [pid 6040] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6043] <... prctl resumed>) = 0 [pid 6042] <... close resumed>) = 0 [pid 6040] close(20 [pid 5875] umount2("./30", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6043] setpgid(0, 0 [pid 6042] read(200, [pid 6041] <... bpf resumed>) = 5 [pid 6040] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6043] <... setpgid resumed>) = 0 [pid 6042] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6040] close(21 [pid 5875] openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6042] symlink("/dev/binderfs", "./binderfs" [pid 6041] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6043] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 6042] <... symlink resumed>) = 0 executing program [pid 6041] <... bpf resumed>) = 6 [pid 6042] write(1, "executing program\n", 18) = 18 [pid 6041] perf_event_open( [pid 6042] perf_event_open({type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6040] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... openat resumed>) = 3 [pid 6040] close(22 [pid 5875] newfstatat(3, "", [pid 6040] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6042] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6041] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6040] close(23 [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6043] <... symlink resumed>) = 0 [pid 6042] <... bpf resumed>) = 4 [pid 6041] close(3 [pid 6040] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] getdents64(3, [pid 6040] close(24 [pid 6043] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 6042] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6041] <... close resumed>) = 0 [pid 6040] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6043] <... symlink resumed>) = 0 [pid 6040] close(25 [pid 6041] close(4 [pid 6040] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./30/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6043] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 6041] <... close resumed>) = 0 [pid 6040] close(26 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] newfstatat(AT_FDCWD, "./30/binderfs", [pid 6040] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6043] <... symlink resumed>) = 0 [pid 6040] close(27) = -1 EBADF (Bad file descriptor) [pid 6040] close(28 [pid 6043] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6042] <... bpf resumed>) = 5 [pid 6041] close(5 [pid 6040] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] unlink("./30/binderfs" [pid 6040] close(29) = -1 EBADF (Bad file descriptor) [pid 6041] <... close resumed>) = 0 [pid 6040] exit_group(0 [pid 5875] <... unlink resumed>) = 0 [pid 6041] close(6 [pid 6040] <... exit_group resumed>) = ? [pid 5875] umount2("./30/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6041] <... close resumed>) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] newfstatat(AT_FDCWD, "./30/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] unlink("./30/cgroup.net") = 0 [pid 6042] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6043] <... openat resumed>) = 3 [pid 6041] close(7 [pid 6040] +++ exited with 0 +++ [pid 5875] umount2("./30/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6043] write(3, "1000", 4 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=32, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 6043] <... write resumed>) = 4 [pid 6041] <... close resumed>) = 0 [pid 6043] close(3 [pid 6041] close(8 [pid 5875] newfstatat(AT_FDCWD, "./30/cgroup.cpu", [pid 6043] <... close resumed>) = 0 [pid 6043] read(200, [pid 6041] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6043] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6042] <... bpf resumed>) = 6 [pid 6041] close(9 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6043] symlink("/dev/binderfs", "./binderfs" [pid 6042] perf_event_open( [pid 6041] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] unlink("./30/cgroup.cpu" [pid 6043] <... symlink resumed>) = 0 [pid 6041] close(10 [pid 5875] <... unlink resumed>) = 0 [pid 6043] write(1, "executing program\n", 18executing program [pid 6042] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6041] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6043] <... write resumed>) = 18 [pid 6042] close(3 [pid 6041] close(11 [pid 5875] umount2("./30/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6043] perf_event_open( [pid 6041] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6041] close(12 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6041] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(AT_FDCWD, "./30/cgroup", [pid 6041] close(13 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6041] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] unlink("./30/cgroup" [pid 6041] close(14) = -1 EBADF (Bad file descriptor) [pid 6041] close(15 [pid 5875] <... unlink resumed>) = 0 [pid 6041] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6041] close(16) = -1 EBADF (Bad file descriptor) [pid 5875] getdents64(3, [pid 6041] close(17) = -1 EBADF (Bad file descriptor) [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6041] close(18 [pid 5875] close(3 [pid 6041] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... close resumed>) = 0 [pid 6041] close(19) = -1 EBADF (Bad file descriptor) [pid 5875] rmdir("./30" [pid 6041] close(20 [pid 5875] <... rmdir resumed>) = 0 [pid 6041] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6041] close(21 [pid 5875] mkdir("./31", 0777 [pid 6041] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6041] close(22 [pid 5875] <... mkdir resumed>) = 0 [pid 6041] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6041] close(23) = -1 EBADF (Bad file descriptor) [pid 6041] close(24./strace-static-x86_64: Process 6045 attached [pid 6043] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6042] <... close resumed>) = 0 [pid 5873] umount2("./30", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6043] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6045] set_robust_list(0x5555947fb660, 24 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6042] close(4 [pid 6041] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 33 [pid 5873] openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6045] <... set_robust_list resumed>) = 0 [pid 6043] <... bpf resumed>) = 4 [pid 6042] <... close resumed>) = 0 [pid 6041] close(25 [pid 6045] chdir("./31" [pid 6043] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6041] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... openat resumed>) = 3 [pid 6045] <... chdir resumed>) = 0 [pid 6042] close(5 [pid 5873] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6045] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6042] <... close resumed>) = 0 [pid 6045] <... prctl resumed>) = 0 [pid 6041] close(26 [pid 5873] getdents64(3, 0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5873] umount2("./30/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6043] <... bpf resumed>) = 5 [pid 6042] close(6 [pid 6041] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6045] setpgid(0, 0 [pid 5873] newfstatat(AT_FDCWD, "./30/binderfs", [pid 6045] <... setpgid resumed>) = 0 [pid 6041] close(27 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] unlink("./30/binderfs") = 0 [pid 6045] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5873] umount2("./30/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6041] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6045] <... symlink resumed>) = 0 [pid 6043] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6042] <... close resumed>) = 0 [pid 6041] close(28 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6045] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 6042] close(7 [pid 6041] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6043] <... bpf resumed>) = 6 [pid 5873] newfstatat(AT_FDCWD, "./30/cgroup.net", [pid 6045] <... symlink resumed>) = 0 [pid 6043] perf_event_open( [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6045] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 6043] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6042] <... close resumed>) = 0 [pid 6041] close(29 [pid 6045] <... symlink resumed>) = 0 [pid 6043] close(3 [pid 6042] close(8 [pid 6041] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] unlink("./30/cgroup.net" [pid 6045] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6042] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6041] exit_group(0 [pid 6045] <... openat resumed>) = 3 [pid 5873] <... unlink resumed>) = 0 [pid 6041] <... exit_group resumed>) = ? [pid 6045] write(3, "1000", 4 [pid 6042] close(9 [pid 5873] umount2("./30/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6045] <... write resumed>) = 4 [pid 6042] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6045] close(3 [pid 6042] close(10 [pid 6041] +++ exited with 0 +++ [pid 5873] newfstatat(AT_FDCWD, "./30/cgroup.cpu", [pid 6045] <... close resumed>) = 0 [pid 6042] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6045] read(200, [pid 6042] close(11 [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=33, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5873] unlink("./30/cgroup.cpu" [pid 6045] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5876] restart_syscall(<... resuming interrupted clone ...> [pid 6042] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6045] symlink("/dev/binderfs", "./binderfs" [pid 6043] <... close resumed>) = 0 [pid 6042] close(12 [pid 5876] <... restart_syscall resumed>) = 0 [pid 6045] <... symlink resumed>) = 0 [pid 5873] <... unlink resumed>) = 0 [pid 6045] write(1, "executing program\n", 18 [pid 6043] close(4 [pid 6042] <... close resumed>) = -1 EBADF (Bad file descriptor) executing program [pid 5873] umount2("./30/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6045] <... write resumed>) = 18 [pid 6043] <... close resumed>) = 0 [pid 6042] close(13 [pid 5876] umount2("./31", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6045] perf_event_open( [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6042] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6043] close(5 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6043] <... close resumed>) = 0 [pid 6042] close(14 [pid 6045] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5876] openat(AT_FDCWD, "./31", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5873] newfstatat(AT_FDCWD, "./30/cgroup", [pid 6043] close(6 [pid 6042] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6042] close(15 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] <... openat resumed>) = 3 [pid 6045] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6042] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(3, "", [pid 5873] unlink("./30/cgroup" [pid 6043] <... close resumed>) = 0 [pid 6045] <... bpf resumed>) = 4 [pid 6042] close(16 [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5873] <... unlink resumed>) = 0 [pid 6045] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6043] close(7 [pid 6042] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] getdents64(3, [pid 5873] getdents64(3, [pid 6043] <... close resumed>) = 0 [pid 6042] close(17 [pid 6043] close(8 [pid 6045] <... bpf resumed>) = 5 [pid 6042] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6045] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6043] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6042] close(18 [pid 5873] close(3 [pid 6043] close(9 [pid 6042] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./31/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6045] <... bpf resumed>) = 6 [pid 6043] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6042] close(19 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... close resumed>) = 0 [pid 6043] close(10 [pid 6042] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(AT_FDCWD, "./31/binderfs", [pid 5873] rmdir("./30" [pid 6045] perf_event_open( [pid 6043] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6042] close(20 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6045] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6043] close(11 [pid 6042] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] unlink("./31/binderfs" [pid 5873] <... rmdir resumed>) = 0 [pid 6045] close(3 [pid 6043] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6042] close(21 [pid 5876] <... unlink resumed>) = 0 [pid 6043] close(12 [pid 6042] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./31/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] mkdir("./31", 0777 [pid 6043] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6042] close(22 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6043] close(13 [pid 6042] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(AT_FDCWD, "./31/cgroup.net", [pid 5873] <... mkdir resumed>) = 0 [pid 6043] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6042] close(23 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6043] close(14 [pid 6042] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6043] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] unlink("./31/cgroup.net") = 0 ./strace-static-x86_64: Process 6046 attached [pid 6043] close(15 [pid 6042] close(24 [pid 6046] set_robust_list(0x5555947fb660, 24 [pid 6043] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6042] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./31/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6046] <... set_robust_list resumed>) = 0 [pid 6043] close(16 [pid 6042] close(25 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 33 [pid 6045] <... close resumed>) = 0 [pid 5876] newfstatat(AT_FDCWD, "./31/cgroup.cpu", [pid 6046] chdir("./31" [pid 6045] close(4 [pid 6043] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6042] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6042] close(26 [pid 6043] close(17 [pid 6042] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6043] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6042] close(27 [pid 6046] <... chdir resumed>) = 0 [pid 6045] <... close resumed>) = 0 [pid 6043] close(18) = -1 EBADF (Bad file descriptor) [pid 6046] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6042] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6045] close(5 [pid 6042] close(28 [pid 6046] <... prctl resumed>) = 0 [pid 6043] close(19 [pid 6046] setpgid(0, 0 [pid 6045] <... close resumed>) = 0 [pid 6042] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6046] <... setpgid resumed>) = 0 [pid 6045] close(6 [pid 6043] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6042] close(29 [pid 5876] unlink("./31/cgroup.cpu" [pid 6046] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 6043] close(20 [pid 5876] <... unlink resumed>) = 0 [pid 6046] <... symlink resumed>) = 0 [pid 6045] <... close resumed>) = 0 [pid 6043] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6042] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./31/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6046] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 6045] close(7 [pid 6043] close(21 [pid 6042] exit_group(0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6046] <... symlink resumed>) = 0 [pid 6043] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6046] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 6043] close(22 [pid 5876] newfstatat(AT_FDCWD, "./31/cgroup", [pid 6046] <... symlink resumed>) = 0 [pid 6045] <... close resumed>) = 0 [pid 6043] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6042] <... exit_group resumed>) = ? [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6046] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6045] close(8 [pid 6043] close(23 [pid 6046] <... openat resumed>) = 3 [pid 6043] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] unlink("./31/cgroup" [pid 6043] close(24 [pid 5876] <... unlink resumed>) = 0 [pid 6046] write(3, "1000", 4 [pid 6043] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6046] <... write resumed>) = 4 [pid 6043] close(25 [pid 5876] getdents64(3, [pid 6046] close(3 [pid 6043] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6046] <... close resumed>) = 0 [pid 6043] close(26 [pid 6042] +++ exited with 0 +++ [pid 5876] close(3 [pid 6046] read(200, [pid 6043] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=33, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6046] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6043] close(27 [pid 5877] restart_syscall(<... resuming interrupted clone ...> [pid 5876] <... close resumed>) = 0 [pid 6046] symlink("/dev/binderfs", "./binderfs" [pid 6043] <... close resumed>) = -1 EBADF (Bad file descriptor) executing program [pid 6046] <... symlink resumed>) = 0 [pid 6045] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] rmdir("./31") = 0 [pid 6045] close(9 [pid 6046] write(1, "executing program\n", 18 [pid 6045] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6046] <... write resumed>) = 18 [pid 5876] mkdir("./32", 0777 [pid 6045] close(10 [pid 6043] close(28 [pid 6045] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6043] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6045] close(11 [pid 6043] close(29 [pid 6045] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6043] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6046] perf_event_open( [pid 6045] close(12 [pid 6043] exit_group(0 [pid 5876] <... mkdir resumed>) = 0 [pid 6045] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6043] <... exit_group resumed>) = ? [pid 5877] <... restart_syscall resumed>) = 0 [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6046] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6045] close(13./strace-static-x86_64: Process 6047 attached [pid 6046] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6045] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6043] +++ exited with 0 +++ [pid 6045] close(14) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./31", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=31, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 6047] set_robust_list(0x5555947fb660, 24 [pid 6046] <... bpf resumed>) = 4 [pid 6045] close(15 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6047] <... set_robust_list resumed>) = 0 [pid 6046] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6045] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] openat(AT_FDCWD, "./31", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6047] chdir("./32" [pid 6045] close(16 [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 34 [pid 6047] <... chdir resumed>) = 0 [pid 6046] <... bpf resumed>) = 5 [pid 6045] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... openat resumed>) = 3 [pid 5874] umount2("./29", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6047] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6046] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6045] close(17 [pid 5877] newfstatat(3, "", [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6047] <... prctl resumed>) = 0 [pid 6046] <... bpf resumed>) = 6 [pid 6045] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6047] setpgid(0, 0 [pid 6046] perf_event_open( [pid 6045] close(18 [pid 5877] getdents64(3, [pid 5874] openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6047] <... setpgid resumed>) = 0 [pid 6046] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6045] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6046] close(3 [pid 5877] umount2("./31/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... openat resumed>) = 3 [pid 6047] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 6045] close(19 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] newfstatat(3, "", [pid 6045] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6045] close(20 [pid 5877] newfstatat(AT_FDCWD, "./31/binderfs", [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6047] <... symlink resumed>) = 0 [pid 6045] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6045] close(21 [pid 5877] unlink("./31/binderfs" [pid 6045] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 5877] umount2("./31/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6045] close(22 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6045] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./31/cgroup.net", [pid 6045] close(23 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6045] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./31/cgroup.net") = 0 [pid 6045] close(24) = -1 EBADF (Bad file descriptor) [pid 6045] close(25 [pid 5877] umount2("./31/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6047] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 6045] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6045] close(26 [pid 5877] newfstatat(AT_FDCWD, "./31/cgroup.cpu", [pid 6045] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] getdents64(3, [pid 6047] <... symlink resumed>) = 0 [pid 5877] unlink("./31/cgroup.cpu") = 0 [pid 5877] umount2("./31/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6047] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 6045] close(27 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6047] <... symlink resumed>) = 0 [pid 6045] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6047] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6046] <... close resumed>) = 0 [pid 6045] close(28 [pid 5877] newfstatat(AT_FDCWD, "./31/cgroup", [pid 5874] umount2("./29/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6046] close(4 [pid 6045] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6047] <... openat resumed>) = 3 [pid 6046] <... close resumed>) = 0 [pid 6045] close(29 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6047] write(3, "1000", 4 [pid 6046] close(5 [pid 6045] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./31/cgroup" [pid 6047] <... write resumed>) = 4 [pid 6045] exit_group(0 [pid 5874] newfstatat(AT_FDCWD, "./29/binderfs", [pid 6047] close(3 [pid 6046] <... close resumed>) = 0 [pid 6045] <... exit_group resumed>) = ? [pid 5877] <... unlink resumed>) = 0 [pid 6047] <... close resumed>) = 0 [pid 6046] close(6 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6045] +++ exited with 0 +++ [pid 5877] getdents64(3, [pid 5874] unlink("./29/binderfs" [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5877] close(3) = 0 [pid 5877] rmdir("./31" [pid 6047] read(200, [pid 5877] <... rmdir resumed>) = 0 [pid 5874] <... unlink resumed>) = 0 [pid 6047] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5877] mkdir("./32", 0777 [pid 6047] symlink("/dev/binderfs", "./binderfs" [pid 5877] <... mkdir resumed>) = 0 [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=33, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5874] umount2("./29/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6048 attached [pid 6047] <... symlink resumed>) = 0 [pid 6046] <... close resumed>) = 0 [pid 5875] restart_syscall(<... resuming interrupted clone ...> [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) executing program [pid 6048] set_robust_list(0x5555947fb660, 24 [pid 6047] write(1, "executing program\n", 18 [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 34 [pid 6048] <... set_robust_list resumed>) = 0 [pid 6047] <... write resumed>) = 18 [pid 5875] <... restart_syscall resumed>) = 0 [pid 5874] newfstatat(AT_FDCWD, "./29/cgroup.net", [pid 6048] chdir("./32" [pid 6047] perf_event_open( [pid 6046] close(7 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6048] <... chdir resumed>) = 0 [pid 6046] <... close resumed>) = 0 [pid 5874] unlink("./29/cgroup.net" [pid 6048] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6047] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6046] close(8 [pid 6048] <... prctl resumed>) = 0 [pid 5874] <... unlink resumed>) = 0 [pid 6048] setpgid(0, 0 [pid 6047] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5874] umount2("./29/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6046] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./31", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6046] close(9 [pid 6048] <... setpgid resumed>) = 0 [pid 6047] <... bpf resumed>) = 4 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6048] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 6047] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6046] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] newfstatat(AT_FDCWD, "./29/cgroup.cpu", [pid 6048] <... symlink resumed>) = 0 [pid 6046] close(10 [pid 5875] openat(AT_FDCWD, "./31", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6046] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6048] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 6046] close(11 [pid 5875] <... openat resumed>) = 3 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6048] <... symlink resumed>) = 0 [pid 5874] unlink("./29/cgroup.cpu" [pid 6048] symlink("/syzcgroup/net/syz4", "./cgroup.net") = 0 [pid 6046] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(3, "", [pid 6048] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6047] <... bpf resumed>) = 5 [pid 6046] close(12 [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5874] <... unlink resumed>) = 0 [pid 6046] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] getdents64(3, [pid 6047] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6046] close(13 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5874] umount2("./29/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6046] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./31/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6046] close(14) = -1 EBADF (Bad file descriptor) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6048] <... openat resumed>) = 3 [pid 6046] close(15 [pid 5875] newfstatat(AT_FDCWD, "./31/binderfs", [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6046] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6046] close(16 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6048] write(3, "1000", 4 [pid 6047] <... bpf resumed>) = 6 [pid 6046] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] newfstatat(AT_FDCWD, "./29/cgroup", [pid 6048] <... write resumed>) = 4 [pid 6047] perf_event_open( [pid 6046] close(17 [pid 5875] unlink("./31/binderfs" [pid 6048] close(3 [pid 6047] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6046] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6046] close(18 [pid 5875] umount2("./31/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6048] <... close resumed>) = 0 [pid 6046] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6047] close(3 [pid 6046] close(19 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] unlink("./29/cgroup" [pid 6048] read(200, [pid 6046] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6048] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6046] close(20 [pid 5875] newfstatat(AT_FDCWD, "./31/cgroup.net", [pid 5874] <... unlink resumed>) = 0 [pid 6048] symlink("/dev/binderfs", "./binderfs" [pid 6046] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6046] close(21 [pid 5875] unlink("./31/cgroup.net" [pid 6048] <... symlink resumed>) = 0 [pid 6046] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 [pid 6046] close(22) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./31/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOWexecuting program [pid 6046] close(23 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6048] write(1, "executing program\n", 18 [pid 6046] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(AT_FDCWD, "./31/cgroup.cpu", [pid 6046] close(24 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6046] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] unlink("./31/cgroup.cpu" [pid 6046] close(25 [pid 5875] <... unlink resumed>) = 0 [pid 6048] <... write resumed>) = 18 [pid 5874] getdents64(3, [pid 6046] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./31/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6048] perf_event_open( [pid 6046] close(26 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6046] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(AT_FDCWD, "./31/cgroup", [pid 5874] close(3 [pid 6046] close(27 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] <... close resumed>) = 0 [pid 6046] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] rmdir("./29") = 0 [pid 5874] mkdir("./30", 0777 [pid 6046] close(28 [pid 5875] unlink("./31/cgroup" [pid 6046] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 [pid 5874] <... mkdir resumed>) = 0 [pid 6046] close(29) = -1 EBADF (Bad file descriptor) [pid 5875] getdents64(3, [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6046] exit_group(0 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6046] <... exit_group resumed>) = ? [pid 5875] close(3./strace-static-x86_64: Process 6049 attached [pid 6049] set_robust_list(0x5555947fb660, 24) = 0 [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 32 [pid 6049] chdir("./30") = 0 [pid 6049] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6048] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6047] <... close resumed>) = 0 [pid 6046] +++ exited with 0 +++ [pid 5875] <... close resumed>) = 0 [pid 6049] <... prctl resumed>) = 0 [pid 6048] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6047] close(4 [pid 5875] rmdir("./31" [pid 6049] setpgid(0, 0 [pid 6048] <... bpf resumed>) = 4 [pid 6047] <... close resumed>) = 0 [pid 5875] <... rmdir resumed>) = 0 [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=33, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 6049] <... setpgid resumed>) = 0 [pid 6048] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6047] close(5 [pid 5875] mkdir("./32", 0777 [pid 6049] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 6047] <... close resumed>) = 0 [pid 5875] <... mkdir resumed>) = 0 [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5873] umount2("./31", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6048] <... bpf resumed>) = 5 [pid 6047] close(6 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6049] <... symlink resumed>) = 0 [pid 6048] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6047] <... close resumed>) = 0 ./strace-static-x86_64: Process 6050 attached [pid 6049] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 6048] <... bpf resumed>) = 6 [pid 5873] openat(AT_FDCWD, "./31", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6047] close(7 [pid 6050] set_robust_list(0x5555947fb660, 24 [pid 6049] <... symlink resumed>) = 0 [pid 6048] perf_event_open( [pid 6047] <... close resumed>) = 0 [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 34 [pid 5873] <... openat resumed>) = 3 [pid 6050] <... set_robust_list resumed>) = 0 [pid 6049] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 6048] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5873] newfstatat(3, "", [pid 6050] chdir("./32" [pid 6049] <... symlink resumed>) = 0 [pid 6047] close(8 [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6050] <... chdir resumed>) = 0 [pid 6049] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6048] close(3 [pid 6047] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6050] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6049] <... openat resumed>) = 3 [pid 6047] close(9 [pid 5873] getdents64(3, [pid 6050] <... prctl resumed>) = 0 [pid 6049] write(3, "1000", 4 [pid 6047] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6050] setpgid(0, 0 [pid 6049] <... write resumed>) = 4 [pid 6047] close(10 [pid 6050] <... setpgid resumed>) = 0 [pid 6049] close(3 [pid 5873] umount2("./31/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6050] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 6049] <... close resumed>) = 0 [pid 6047] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6049] read(200, [pid 5873] newfstatat(AT_FDCWD, "./31/binderfs", [pid 6050] <... symlink resumed>) = 0 [pid 6049] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6047] close(11 [pid 6050] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 6047] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6049] symlink("/dev/binderfs", "./binderfs" [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6050] <... symlink resumed>) = 0 [pid 6049] <... symlink resumed>) = 0 [pid 6047] close(12 [pid 5873] unlink("./31/binderfs" [pid 6050] symlink("/syzcgroup/net/syz2", "./cgroup.net"executing program [pid 6047] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6050] <... symlink resumed>) = 0 [pid 6049] write(1, "executing program\n", 18 [pid 6047] close(13 [pid 5873] <... unlink resumed>) = 0 [pid 6049] <... write resumed>) = 18 [pid 6047] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] umount2("./31/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6050] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6047] close(14 [pid 6049] perf_event_open( [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6047] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6050] <... openat resumed>) = 3 [pid 5873] newfstatat(AT_FDCWD, "./31/cgroup.net", [pid 6050] write(3, "1000", 4 [pid 6047] close(15 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6047] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] unlink("./31/cgroup.net" [pid 6050] <... write resumed>) = 4 [pid 6047] close(16 [pid 5873] <... unlink resumed>) = 0 [pid 5873] umount2("./31/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6047] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6050] close(3 [pid 5873] newfstatat(AT_FDCWD, "./31/cgroup.cpu", [pid 6050] <... close resumed>) = 0 [pid 6047] close(17 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6047] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] unlink("./31/cgroup.cpu" [pid 6047] close(18 [pid 5873] <... unlink resumed>) = 0 [pid 6047] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] umount2("./31/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6047] close(19 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] newfstatat(AT_FDCWD, "./31/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] unlink("./31/cgroup" [pid 6050] read(200, [pid 6049] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6048] <... close resumed>) = 0 [pid 6047] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6050] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6049] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6048] close(4 [pid 6047] close(20 [pid 5873] <... unlink resumed>) = 0 [pid 6050] symlink("/dev/binderfs", "./binderfs" [pid 6049] <... bpf resumed>) = 4 [pid 6048] <... close resumed>) = 0 [pid 6050] <... symlink resumed>) = 0 [pid 6049] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6048] close(5 [pid 6047] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] getdents64(3, [pid 6050] write(1, "executing program\n", 18executing program [pid 6047] close(21 [pid 6050] <... write resumed>) = 18 [pid 6048] <... close resumed>) = 0 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6050] perf_event_open( [pid 6048] close(6 [pid 6047] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] close(3 [pid 6047] close(22 [pid 5873] <... close resumed>) = 0 [pid 6047] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] rmdir("./31" [pid 6050] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6048] <... close resumed>) = 0 [pid 5873] <... rmdir resumed>) = 0 [pid 6047] close(23 [pid 5873] mkdir("./32", 0777 [pid 6047] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6050] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6047] close(24 [pid 5873] <... mkdir resumed>) = 0 [pid 6049] <... bpf resumed>) = 5 [pid 6048] close(7 [pid 6047] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6050] <... bpf resumed>) = 4 [pid 6049] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6048] <... close resumed>) = 0 [pid 6047] close(25 [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6047] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6050] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148./strace-static-x86_64: Process 6051 attached ) = 5 [pid 6049] <... bpf resumed>) = 6 [pid 6048] close(8 [pid 6047] close(26 [pid 6051] set_robust_list(0x5555947fb660, 24 [pid 6050] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6049] perf_event_open( [pid 6048] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6047] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6051] <... set_robust_list resumed>) = 0 [pid 6050] <... bpf resumed>) = 6 [pid 6048] close(9 [pid 6047] close(27 [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 34 [pid 6049] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6050] perf_event_open( [pid 6048] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6047] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6050] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6047] close(28 [pid 6048] close(10 [pid 6047] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6048] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6047] close(29) = -1 EBADF (Bad file descriptor) [pid 6048] close(11 [pid 6051] chdir("./32" [pid 6050] close(3 [pid 6048] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6047] exit_group(0 [pid 6051] <... chdir resumed>) = 0 [pid 6049] close(3 [pid 6048] close(12 [pid 6049] <... close resumed>) = 0 [pid 6048] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6047] <... exit_group resumed>) = ? [pid 6051] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6049] close(4 [pid 6048] close(13 [pid 6049] <... close resumed>) = 0 [pid 6048] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6051] <... prctl resumed>) = 0 [pid 6049] close(5 [pid 6048] close(14 [pid 6051] setpgid(0, 0) = 0 [pid 6048] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6051] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 6049] <... close resumed>) = 0 [pid 6048] close(15 [pid 6047] +++ exited with 0 +++ [pid 6049] close(6 [pid 6048] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6048] close(16) = -1 EBADF (Bad file descriptor) [pid 6051] <... symlink resumed>) = 0 [pid 6049] <... close resumed>) = 0 [pid 6048] close(17 [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=34, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6051] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 6049] close(7 [pid 6048] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] restart_syscall(<... resuming interrupted clone ...> [pid 6049] <... close resumed>) = 0 [pid 6048] close(18 [pid 6051] <... symlink resumed>) = 0 [pid 6049] close(8 [pid 6048] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6049] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6048] close(19 [pid 6049] close(9 [pid 6048] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6049] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6048] close(20 [pid 6049] close(10 [pid 6048] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6051] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 6049] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6048] close(21 [pid 5876] <... restart_syscall resumed>) = 0 [pid 6049] close(11 [pid 6048] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6049] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6048] close(22 [pid 6049] close(12 [pid 6048] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6049] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6048] close(23 [pid 6049] close(13 [pid 6048] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6051] <... symlink resumed>) = 0 [pid 6049] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6048] close(24 [pid 5876] umount2("./32", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6049] close(14 [pid 6048] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6051] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6049] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6048] close(25 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6049] close(15 [pid 6048] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6049] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6048] close(26 [pid 6049] close(16 [pid 6048] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] openat(AT_FDCWD, "./32", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6049] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6048] close(27 [pid 6049] close(17 [pid 6048] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6049] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6048] close(28 [pid 5876] <... openat resumed>) = 3 [pid 6049] close(18 [pid 6048] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6049] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6048] close(29 [pid 6049] close(19 [pid 6048] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6048] exit_group(0 [pid 5876] newfstatat(3, "", [pid 6049] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6049] close(20 [pid 6048] <... exit_group resumed>) = ? [pid 6051] <... openat resumed>) = 3 [pid 6050] <... close resumed>) = 0 [pid 6049] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6048] +++ exited with 0 +++ [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6050] close(4 [pid 6051] write(3, "1000", 4 [pid 6050] <... close resumed>) = 0 [pid 6049] close(21 [pid 5876] getdents64(3, [pid 6051] <... write resumed>) = 4 [pid 6050] close(5 [pid 6049] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6051] close(3 [pid 6050] <... close resumed>) = 0 [pid 6049] close(22 [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=34, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5876] umount2("./32/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6051] <... close resumed>) = 0 [pid 6050] close(6 [pid 6049] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6051] read(200, [pid 6049] close(23 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6051] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6049] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(AT_FDCWD, "./32/binderfs", [pid 6051] symlink("/dev/binderfs", "./binderfs" [pid 6050] <... close resumed>) = 0 [pid 6049] close(24 [pid 5877] umount2("./32", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6049] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6049] close(25 [pid 5877] openat(AT_FDCWD, "./32", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6051] <... symlink resumed>) = 0 [pid 6049] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6050] close(7 [pid 6051] write(1, "executing program\n", 18 [pid 6049] close(26executing program [pid 5877] <... openat resumed>) = 3 [pid 6051] <... write resumed>) = 18 [pid 6050] <... close resumed>) = 0 [pid 6049] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] unlink("./32/binderfs" [pid 6049] close(27 [pid 5877] newfstatat(3, "", [pid 5876] <... unlink resumed>) = 0 [pid 5876] umount2("./32/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5876] newfstatat(AT_FDCWD, "./32/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] unlink("./32/cgroup.net") = 0 [pid 5876] umount2("./32/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5876] newfstatat(AT_FDCWD, "./32/cgroup.cpu", [pid 6051] perf_event_open( [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] unlink("./32/cgroup.cpu" [pid 6050] close(8 [pid 6049] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5876] <... unlink resumed>) = 0 [pid 6050] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6049] close(28 [pid 5877] getdents64(3, [pid 5876] umount2("./32/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6050] close(9 [pid 6049] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6050] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6049] close(29 [pid 5877] umount2("./32/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] newfstatat(AT_FDCWD, "./32/cgroup", [pid 6050] close(10 [pid 6049] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6050] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6049] exit_group(0 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5877] newfstatat(AT_FDCWD, "./32/binderfs", [pid 6050] close(11 [pid 5876] unlink("./32/cgroup" [pid 6051] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6050] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 6049] <... exit_group resumed>) = ? [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6050] close(12 [pid 5876] getdents64(3, 0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5876] close(3) = 0 [pid 5876] rmdir("./32") = 0 [pid 5876] mkdir("./33", 0777 [pid 6051] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6050] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6049] +++ exited with 0 +++ [pid 5877] unlink("./32/binderfs" [pid 6051] <... bpf resumed>) = 4 [pid 6050] close(13 [pid 5876] <... mkdir resumed>) = 0 [pid 6050] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=32, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6051] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6050] close(14 [pid 5877] umount2("./32/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6051] <... bpf resumed>) = 5 [pid 6050] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6050] close(15) = -1 EBADF (Bad file descriptor) [pid 6050] close(16) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./32/cgroup.net", [pid 6050] close(17) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6050] close(18) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./32/cgroup.net"./strace-static-x86_64: Process 6052 attached [pid 6050] close(19) = -1 EBADF (Bad file descriptor) [pid 6050] close(20) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 6050] close(21 [pid 6052] set_robust_list(0x5555947fb660, 24 [pid 6050] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./32/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6052] <... set_robust_list resumed>) = 0 [pid 6050] close(22 [pid 5874] umount2("./30", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6050] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6050] close(23 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6052] chdir("./33" [pid 6050] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./32/cgroup.cpu", [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 35 [pid 6050] close(24) = -1 EBADF (Bad file descriptor) [pid 6050] close(25) = -1 EBADF (Bad file descriptor) [pid 6050] close(26) = -1 EBADF (Bad file descriptor) [pid 6050] close(27 [pid 5874] openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6050] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6052] <... chdir resumed>) = 0 [pid 6050] close(28 [pid 5877] unlink("./32/cgroup.cpu" [pid 6052] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6050] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... openat resumed>) = 3 [pid 6051] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6050] close(29) = -1 EBADF (Bad file descriptor) [pid 6052] <... prctl resumed>) = 0 [pid 6050] exit_group(0 [pid 5877] <... unlink resumed>) = 0 [pid 5874] newfstatat(3, "", [pid 6050] <... exit_group resumed>) = ? [pid 6052] setpgid(0, 0 [pid 6051] <... bpf resumed>) = 6 [pid 5877] umount2("./32/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6052] <... setpgid resumed>) = 0 [pid 6051] perf_event_open( [pid 6050] +++ exited with 0 +++ [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] getdents64(3, [pid 6052] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5877] newfstatat(AT_FDCWD, "./32/cgroup", [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=34, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6051] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6052] <... symlink resumed>) = 0 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] restart_syscall(<... resuming interrupted clone ...> [pid 6052] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5877] unlink("./32/cgroup" [pid 5874] umount2("./30/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6052] <... symlink resumed>) = 0 [pid 6051] close(3 [pid 6052] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5877] <... unlink resumed>) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6052] <... symlink resumed>) = 0 [pid 5877] getdents64(3, [pid 5875] <... restart_syscall resumed>) = 0 [pid 5874] newfstatat(AT_FDCWD, "./30/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6052] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5874] unlink("./30/binderfs" [pid 5877] close(3) = 0 [pid 6052] <... openat resumed>) = 3 [pid 5874] <... unlink resumed>) = 0 [pid 6052] write(3, "1000", 4 [pid 5877] rmdir("./32" [pid 5875] umount2("./32", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] umount2("./30/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6052] <... write resumed>) = 4 [pid 5877] <... rmdir resumed>) = 0 [pid 6052] close(3 [pid 5877] mkdir("./33", 0777 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6052] <... close resumed>) = 0 [pid 5877] <... mkdir resumed>) = 0 [pid 6052] read(200, [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5875] openat(AT_FDCWD, "./32", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5874] newfstatat(AT_FDCWD, "./30/cgroup.net", [pid 6052] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] <... openat resumed>) = 3 ./strace-static-x86_64: Process 6053 attached executing program [pid 6052] symlink("/dev/binderfs", "./binderfs" [pid 6051] <... close resumed>) = 0 [pid 5875] newfstatat(3, "", [pid 5874] unlink("./30/cgroup.net" [pid 6052] <... symlink resumed>) = 0 [pid 6051] close(4 [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 35 [pid 6052] write(1, "executing program\n", 18) = 18 [pid 6052] perf_event_open( [pid 5874] <... unlink resumed>) = 0 [pid 6052] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6051] <... close resumed>) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5874] umount2("./30/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6051] close(5 [pid 6053] set_robust_list(0x5555947fb660, 24 [pid 6052] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6053] <... set_robust_list resumed>) = 0 [pid 6052] <... bpf resumed>) = 4 [pid 6051] <... close resumed>) = 0 [pid 5875] getdents64(3, [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6052] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5874] newfstatat(AT_FDCWD, "./30/cgroup.cpu", [pid 6053] chdir("./33" [pid 6051] close(6 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6053] <... chdir resumed>) = 0 [pid 6052] <... bpf resumed>) = 5 [pid 5875] umount2("./32/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] unlink("./30/cgroup.cpu" [pid 6053] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6052] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5874] <... unlink resumed>) = 0 [pid 6053] <... prctl resumed>) = 0 [pid 5875] newfstatat(AT_FDCWD, "./32/binderfs", [pid 6053] setpgid(0, 0 [pid 5874] umount2("./30/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6053] <... setpgid resumed>) = 0 [pid 6052] <... bpf resumed>) = 6 [pid 6051] <... close resumed>) = 0 [pid 5875] unlink("./32/binderfs" [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6052] perf_event_open( [pid 6053] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 6052] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6051] close(7 [pid 5875] <... unlink resumed>) = 0 [pid 5874] newfstatat(AT_FDCWD, "./30/cgroup", [pid 6051] <... close resumed>) = 0 [pid 6053] <... symlink resumed>) = 0 [pid 6052] close(3 [pid 5875] umount2("./32/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6053] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 6051] close(8 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] unlink("./30/cgroup" [pid 6053] <... symlink resumed>) = 0 [pid 6053] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 6051] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(AT_FDCWD, "./32/cgroup.net", [pid 5874] <... unlink resumed>) = 0 [pid 6053] <... symlink resumed>) = 0 [pid 6051] close(9 [pid 5874] getdents64(3, [pid 6053] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6053] <... openat resumed>) = 3 [pid 6051] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] close(3) = 0 [pid 6053] write(3, "1000", 4 [pid 5874] rmdir("./30" [pid 6053] <... write resumed>) = 4 [pid 5874] <... rmdir resumed>) = 0 [pid 6051] close(10 [pid 5875] unlink("./32/cgroup.net" [pid 6053] close(3 [pid 6051] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6053] <... close resumed>) = 0 [pid 6051] close(11 [pid 5874] mkdir("./31", 0777 [pid 6053] read(200, [pid 6051] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 [pid 5874] <... mkdir resumed>) = 0 [pid 6053] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6051] close(12 [pid 6053] symlink("/dev/binderfs", "./binderfs" [pid 6051] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5875] umount2("./32/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6053] <... symlink resumed>) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6051] close(13 [pid 5875] newfstatat(AT_FDCWD, "./32/cgroup.cpu", [pid 6051] <... close resumed>) = -1 EBADF (Bad file descriptor) executing program [pid 6053] write(1, "executing program\n", 18 [pid 6051] close(14 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 6054 attached [pid 6053] <... write resumed>) = 18 [pid 6051] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6054] set_robust_list(0x5555947fb660, 24 [pid 6053] perf_event_open( [pid 6054] <... set_robust_list resumed>) = 0 [pid 6051] close(15 [pid 5875] unlink("./32/cgroup.cpu" [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 33 [pid 6054] chdir("./31" [pid 6051] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6054] <... chdir resumed>) = 0 [pid 5875] <... unlink resumed>) = 0 [pid 6051] close(16 [pid 6054] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6054] setpgid(0, 0) = 0 [pid 6054] symlink("/syzcgroup/unified/syz1", "./cgroup") = 0 [pid 6053] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6052] <... close resumed>) = 0 [pid 6051] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./32/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6052] close(4 [pid 6051] close(17 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6051] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(AT_FDCWD, "./32/cgroup", [pid 6051] close(18 [pid 6054] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 6053] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6051] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6054] <... symlink resumed>) = 0 [pid 6053] <... bpf resumed>) = 4 [pid 6052] <... close resumed>) = 0 [pid 6051] close(19 [pid 6054] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5875] unlink("./32/cgroup" [pid 6054] <... symlink resumed>) = 0 [pid 6053] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6052] close(5 [pid 6051] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6054] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5875] <... unlink resumed>) = 0 [pid 6052] <... close resumed>) = 0 [pid 6051] close(20 [pid 5875] getdents64(3, [pid 6051] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6052] close(6 [pid 6054] <... openat resumed>) = 3 [pid 6053] <... bpf resumed>) = 5 [pid 6051] close(21 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6054] write(3, "1000", 4 [pid 6053] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6054] <... write resumed>) = 4 [pid 6054] close(3 [pid 6052] <... close resumed>) = 0 [pid 6054] <... close resumed>) = 0 [pid 6051] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] close(3 [pid 6054] read(200, [pid 6053] <... bpf resumed>) = 6 [pid 6054] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6053] perf_event_open( [pid 6052] close(7 [pid 6051] close(22 [pid 5875] <... close resumed>) = 0 [pid 6054] symlink("/dev/binderfs", "./binderfs" [pid 6053] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6052] <... close resumed>) = 0 [pid 6051] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] rmdir("./32" [pid 6054] <... symlink resumed>) = 0 [pid 6052] close(8 [pid 6051] close(23 [pid 6052] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6051] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6052] close(9 [pid 6051] close(24 [pid 6052] <... close resumed>) = -1 EBADF (Bad file descriptor) executing program [pid 6054] write(1, "executing program\n", 18 [pid 6053] close(3 [pid 6052] close(10 [pid 6051] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... rmdir resumed>) = 0 [pid 6054] <... write resumed>) = 18 [pid 6052] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6051] close(25 [pid 6054] perf_event_open( [pid 6052] close(11 [pid 6051] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] mkdir("./33", 0777 [pid 6052] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... mkdir resumed>) = 0 [pid 6051] close(26 [pid 6052] close(12 [pid 6051] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6052] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6051] close(27 [pid 6052] close(13) = -1 EBADF (Bad file descriptor) [pid 6052] close(14) = -1 EBADF (Bad file descriptor) [pid 6052] close(15) = -1 EBADF (Bad file descriptor) [pid 6052] close(16) = -1 EBADF (Bad file descriptor) [pid 6052] close(17) = -1 EBADF (Bad file descriptor) [pid 6052] close(18) = -1 EBADF (Bad file descriptor) [pid 6052] close(19) = -1 EBADF (Bad file descriptor) [pid 6052] close(20./strace-static-x86_64: Process 6055 attached ) = -1 EBADF (Bad file descriptor) [pid 6055] set_robust_list(0x5555947fb660, 24 [pid 6052] close(21 [pid 6055] <... set_robust_list resumed>) = 0 [pid 6055] chdir("./33" [pid 6052] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6051] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 35 [pid 6055] <... chdir resumed>) = 0 [pid 6052] close(22 [pid 6051] close(28 [pid 6055] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6052] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6051] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6055] <... prctl resumed>) = 0 [pid 6052] close(23 [pid 6051] close(29 [pid 6055] setpgid(0, 0 [pid 6052] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6051] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6055] <... setpgid resumed>) = 0 [pid 6052] close(24 [pid 6055] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 6051] exit_group(0 [pid 6052] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6052] close(25 [pid 6051] <... exit_group resumed>) = ? [pid 6055] <... symlink resumed>) = 0 [pid 6052] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6055] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 6054] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6053] <... close resumed>) = 0 [pid 6052] close(26 [pid 6051] +++ exited with 0 +++ [pid 6055] <... symlink resumed>) = 0 [pid 6053] close(4 [pid 6054] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6052] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=34, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 6055] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 6054] <... bpf resumed>) = 4 [pid 6053] <... close resumed>) = 0 [pid 6052] close(27 [pid 6054] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6052] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6055] <... symlink resumed>) = 0 [pid 6053] close(5 [pid 6052] close(28) = -1 EBADF (Bad file descriptor) [pid 6055] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6054] <... bpf resumed>) = 5 [pid 6053] <... close resumed>) = 0 [pid 6052] close(29 [pid 5873] umount2("./32", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6054] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6052] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6055] <... openat resumed>) = 3 [pid 6054] <... bpf resumed>) = 6 [pid 6053] close(6 [pid 6052] exit_group(0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6054] perf_event_open( [pid 6052] <... exit_group resumed>) = ? [pid 6055] write(3, "1000", 4) = 4 [pid 6055] close(3) = 0 [pid 6052] +++ exited with 0 +++ [pid 6055] read(200, [pid 5873] openat(AT_FDCWD, "./32", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6054] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6053] <... close resumed>) = 0 [pid 5873] <... openat resumed>) = 3 [pid 6054] close(3 [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=35, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5873] newfstatat(3, "", [pid 6055] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6053] close(7 [pid 6055] symlink("/dev/binderfs", "./binderfs" [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6055] <... symlink resumed>) = 0 [pid 6054] <... close resumed>) = 0 [pid 6053] <... close resumed>) = 0 [pid 5873] getdents64(3, [pid 6055] write(1, "executing program\n", 18 [pid 6054] close(4 [pid 6053] close(8executing program [pid 5876] umount2("./33", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6055] <... write resumed>) = 18 [pid 6054] <... close resumed>) = 0 [pid 6053] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] umount2("./32/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6055] perf_event_open( [pid 6053] close(9 [pid 5876] openat(AT_FDCWD, "./33", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6055] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6054] close(5 [pid 6053] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... openat resumed>) = 3 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6055] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6054] <... close resumed>) = 0 [pid 6053] close(10 [pid 5876] newfstatat(3, "", [pid 5873] newfstatat(AT_FDCWD, "./32/binderfs", [pid 6055] <... bpf resumed>) = 4 [pid 6053] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6055] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6054] close(6 [pid 6053] close(11 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6054] <... close resumed>) = 0 [pid 6053] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] getdents64(3, 0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5873] unlink("./32/binderfs" [pid 6055] <... bpf resumed>) = 5 [pid 6054] close(7 [pid 6053] close(12 [pid 5876] umount2("./33/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6055] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6054] <... close resumed>) = 0 [pid 6053] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... unlink resumed>) = 0 [pid 6054] close(8 [pid 6053] close(13 [pid 5876] newfstatat(AT_FDCWD, "./33/binderfs", [pid 6055] <... bpf resumed>) = 6 [pid 5873] umount2("./32/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6054] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6053] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6055] perf_event_open( [pid 6054] close(9 [pid 6053] close(14 [pid 5876] unlink("./33/binderfs" [pid 5873] newfstatat(AT_FDCWD, "./32/cgroup.net", [pid 6055] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6054] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6053] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6055] close(3 [pid 6053] close(15 [pid 5876] umount2("./33/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6054] close(10 [pid 6053] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6054] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6054] close(11 [pid 6053] close(16 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] unlink("./32/cgroup.net" [pid 5876] newfstatat(AT_FDCWD, "./33/cgroup.net", [pid 5873] <... unlink resumed>) = 0 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] unlink("./33/cgroup.net" [pid 5873] umount2("./32/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] <... unlink resumed>) = 0 [pid 5876] umount2("./33/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] newfstatat(AT_FDCWD, "./33/cgroup.cpu", [pid 5873] newfstatat(AT_FDCWD, "./32/cgroup.cpu", [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] unlink("./33/cgroup.cpu" [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] <... unlink resumed>) = 0 [pid 5873] unlink("./32/cgroup.cpu" [pid 6053] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./33/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... unlink resumed>) = 0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] umount2("./32/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] newfstatat(AT_FDCWD, "./33/cgroup", [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] unlink("./33/cgroup" [pid 5873] newfstatat(AT_FDCWD, "./32/cgroup", [pid 5876] <... unlink resumed>) = 0 [pid 5876] getdents64(3, [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5876] close(3 [pid 5873] unlink("./32/cgroup" [pid 5876] <... close resumed>) = 0 [pid 5873] <... unlink resumed>) = 0 [pid 6054] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6053] close(17 [pid 5876] rmdir("./33" [pid 6054] close(12 [pid 6053] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6054] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6053] close(18 [pid 5876] <... rmdir resumed>) = 0 [pid 6054] close(13 [pid 6053] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6054] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6053] close(19 [pid 6054] close(14 [pid 6053] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6054] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6053] close(20 [pid 6054] close(15) = -1 EBADF (Bad file descriptor) [pid 6053] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6054] close(16 [pid 6053] close(21 [pid 6054] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6053] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6054] close(17 [pid 5876] mkdir("./34", 0777 [pid 5873] getdents64(3, [pid 6054] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6053] close(22 [pid 5876] <... mkdir resumed>) = 0 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6054] close(18 [pid 6053] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5873] close(3 [pid 6054] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6053] close(23 [pid 5873] <... close resumed>) = 0 [pid 6054] close(19 [pid 6053] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] rmdir("./32"./strace-static-x86_64: Process 6056 attached [pid 6054] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6053] close(24 [pid 5873] <... rmdir resumed>) = 0 [pid 6056] set_robust_list(0x5555947fb660, 24 [pid 6054] close(20 [pid 6053] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 36 [pid 5873] mkdir("./33", 0777 [pid 6056] <... set_robust_list resumed>) = 0 [pid 6054] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6053] close(25 [pid 5873] <... mkdir resumed>) = 0 [pid 6056] chdir("./34" [pid 6054] close(21 [pid 6053] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6054] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6053] close(26 [pid 6054] close(22 [pid 6056] <... chdir resumed>) = 0 [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6056] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6054] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6053] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6056] <... prctl resumed>) = 0 [pid 6054] close(23 [pid 6053] close(27 [pid 6056] setpgid(0, 0 [pid 6054] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6053] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6056] <... setpgid resumed>) = 0 [pid 6054] close(24./strace-static-x86_64: Process 6057 attached [pid 6056] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 6055] <... close resumed>) = 0 [pid 6054] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6053] close(28 [pid 6057] set_robust_list(0x5555947fb660, 24 [pid 6054] close(25 [pid 6053] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6054] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6053] close(29 [pid 6057] <... set_robust_list resumed>) = 0 [pid 6056] <... symlink resumed>) = 0 [pid 6055] close(4 [pid 6054] close(26 [pid 6053] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 35 [pid 6057] chdir("./33" [pid 6056] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 6057] <... chdir resumed>) = 0 [pid 6056] <... symlink resumed>) = 0 [pid 6057] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6055] <... close resumed>) = 0 [pid 6057] <... prctl resumed>) = 0 [pid 6056] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 6054] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6057] setpgid(0, 0 [pid 6056] <... symlink resumed>) = 0 [pid 6057] <... setpgid resumed>) = 0 [pid 6057] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 6056] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6055] close(5 [pid 6054] close(27 [pid 6053] exit_group(0 [pid 6057] <... symlink resumed>) = 0 [pid 6056] <... openat resumed>) = 3 [pid 6056] write(3, "1000", 4) = 4 [pid 6057] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 6056] close(3 [pid 6055] <... close resumed>) = 0 [pid 6054] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6053] <... exit_group resumed>) = ? [pid 6057] <... symlink resumed>) = 0 [pid 6056] <... close resumed>) = 0 [pid 6056] read(200, [pid 6057] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 6056] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6057] <... symlink resumed>) = 0 [pid 6053] +++ exited with 0 +++ [pid 6056] symlink("/dev/binderfs", "./binderfs" [pid 6055] close(6 [pid 6054] close(28 [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=35, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 6057] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6056] <... symlink resumed>) = 0 [pid 6054] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6056] write(1, "executing program\n", 18executing program ) = 18 [pid 6054] close(29 [pid 6056] perf_event_open( [pid 6054] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6054] exit_group(0) = ? [pid 6056] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6057] <... openat resumed>) = 3 [pid 6055] <... close resumed>) = 0 [pid 6054] +++ exited with 0 +++ [pid 5877] umount2("./33", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6057] write(3, "1000", 4 [pid 6056] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6055] close(7 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=33, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6057] <... write resumed>) = 4 [pid 6056] <... bpf resumed>) = 4 [pid 5877] openat(AT_FDCWD, "./33", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6057] close(3 [pid 6056] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6055] <... close resumed>) = 0 [pid 5877] <... openat resumed>) = 3 [pid 6057] <... close resumed>) = 0 [pid 5877] newfstatat(3, "", [pid 6057] read(200, [pid 6055] close(8 [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6057] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6055] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] getdents64(3, [pid 6057] symlink("/dev/binderfs", "./binderfs" [pid 6056] <... bpf resumed>) = 5 [pid 6055] close(9 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5874] umount2("./31", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6057] <... symlink resumed>) = 0 [pid 6056] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24executing program [pid 6055] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6057] write(1, "executing program\n", 18 [pid 6056] <... bpf resumed>) = 6 [pid 6055] close(10 [pid 5877] umount2("./33/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6057] <... write resumed>) = 18 [pid 6056] perf_event_open( [pid 6055] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6057] perf_event_open( [pid 6055] close(11 [pid 5877] newfstatat(AT_FDCWD, "./33/binderfs", [pid 5874] openat(AT_FDCWD, "./31", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6056] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6057] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6055] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6056] close(3 [pid 5877] unlink("./33/binderfs" [pid 6055] close(12 [pid 5877] <... unlink resumed>) = 0 [pid 5877] umount2("./33/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6056] <... close resumed>) = 0 [pid 5877] newfstatat(AT_FDCWD, "./33/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5877] unlink("./33/cgroup.net" [pid 6057] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6056] close(4 [pid 6055] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 5874] <... openat resumed>) = 3 [pid 6057] <... bpf resumed>) = 4 [pid 6056] <... close resumed>) = 0 [pid 6055] close(13 [pid 5874] newfstatat(3, "", [pid 6057] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6056] close(5 [pid 6055] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./33/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6057] <... bpf resumed>) = 5 [pid 6056] <... close resumed>) = 0 [pid 6055] close(14 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6057] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6056] close(6 [pid 6055] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] getdents64(3, [pid 6057] <... bpf resumed>) = 6 [pid 6056] <... close resumed>) = 0 [pid 6055] close(15 [pid 5877] newfstatat(AT_FDCWD, "./33/cgroup.cpu", [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6057] perf_event_open( [pid 6056] close(7 [pid 6055] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./31/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6057] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6056] <... close resumed>) = 0 [pid 6056] close(8 [pid 6055] close(16 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6057] close(3 [pid 6056] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6055] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] newfstatat(AT_FDCWD, "./31/binderfs", [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5877] unlink("./33/cgroup.cpu" [pid 6056] close(9 [pid 6055] close(17 [pid 5874] unlink("./31/binderfs" [pid 6056] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6055] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 6056] close(10 [pid 6055] close(18 [pid 5877] umount2("./33/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... unlink resumed>) = 0 [pid 6056] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6055] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6056] close(11 [pid 6055] close(19 [pid 5877] newfstatat(AT_FDCWD, "./33/cgroup", [pid 5874] umount2("./31/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6056] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6055] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6056] close(12 [pid 6055] close(20 [pid 5877] unlink("./33/cgroup" [pid 5874] newfstatat(AT_FDCWD, "./31/cgroup.net", [pid 6056] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6055] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6056] close(13 [pid 6055] close(21 [pid 5877] <... unlink resumed>) = 0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6056] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6055] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] getdents64(3, [pid 6056] close(14 [pid 6055] close(22 [pid 5874] unlink("./31/cgroup.net" [pid 6056] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6055] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5874] <... unlink resumed>) = 0 [pid 6055] close(23 [pid 5877] close(3 [pid 6056] close(15 [pid 6055] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./31/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6056] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6055] close(24 [pid 5877] <... close resumed>) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6056] close(16 [pid 6055] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] rmdir("./33" [pid 5874] newfstatat(AT_FDCWD, "./31/cgroup.cpu", [pid 6056] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6055] close(25 [pid 6056] close(17 [pid 6055] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6056] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6055] close(26 [pid 5877] <... rmdir resumed>) = 0 [pid 6056] close(18 [pid 6055] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] unlink("./31/cgroup.cpu" [pid 5877] mkdir("./34", 0777 [pid 6056] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6055] close(27 [pid 6056] close(19 [pid 6055] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... mkdir resumed>) = 0 [pid 5874] <... unlink resumed>) = 0 [pid 6056] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6055] close(28 [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6056] close(20 [pid 6055] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./31/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6056] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6055] close(29 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6056] close(21 [pid 6055] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] newfstatat(AT_FDCWD, "./31/cgroup", [pid 6056] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6055] exit_group(0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 6058 attached [pid 6056] close(22 [pid 6055] <... exit_group resumed>) = ? [pid 5874] unlink("./31/cgroup" [pid 6058] set_robust_list(0x5555947fb660, 24 [pid 6056] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6055] +++ exited with 0 +++ [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=35, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 36 [pid 6058] <... set_robust_list resumed>) = 0 [pid 6057] <... close resumed>) = 0 [pid 6056] close(23 [pid 5874] <... unlink resumed>) = 0 [pid 6057] close(4 [pid 5875] umount2("./33", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] getdents64(3, [pid 6057] <... close resumed>) = 0 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6058] chdir("./34" [pid 6056] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6056] close(24 [pid 5875] openat(AT_FDCWD, "./33", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6058] <... chdir resumed>) = 0 [pid 6056] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6057] close(5 [pid 5875] <... openat resumed>) = 3 [pid 5874] close(3 [pid 6057] <... close resumed>) = 0 [pid 5874] <... close resumed>) = 0 [pid 6057] close(6 [pid 5874] rmdir("./31" [pid 6058] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6056] close(25 [pid 5875] newfstatat(3, "", [pid 6058] <... prctl resumed>) = 0 [pid 6057] <... close resumed>) = 0 [pid 6056] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5874] <... rmdir resumed>) = 0 [pid 6058] setpgid(0, 0 [pid 6057] close(7 [pid 6056] close(26 [pid 5875] getdents64(3, [pid 5874] mkdir("./32", 0777 [pid 6058] <... setpgid resumed>) = 0 [pid 6057] <... close resumed>) = 0 [pid 6056] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5874] <... mkdir resumed>) = 0 [pid 6057] close(8 [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6058] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 6057] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6056] close(27 [pid 5875] umount2("./33/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 6059 attached [pid 6057] close(9 [pid 6056] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6059] set_robust_list(0x5555947fb660, 24 [pid 6056] close(28 [pid 5875] newfstatat(AT_FDCWD, "./33/binderfs", [pid 6059] <... set_robust_list resumed>) = 0 [pid 6058] <... symlink resumed>) = 0 [pid 6057] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6056] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 34 [pid 6059] chdir("./32" [pid 6058] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 6057] close(10 [pid 6056] close(29 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6059] <... chdir resumed>) = 0 [pid 6058] <... symlink resumed>) = 0 [pid 6057] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6056] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] unlink("./33/binderfs" [pid 6059] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6058] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 6057] close(11 [pid 6056] exit_group(0 [pid 5875] <... unlink resumed>) = 0 [pid 6059] <... prctl resumed>) = 0 [pid 6058] <... symlink resumed>) = 0 [pid 6057] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6056] <... exit_group resumed>) = ? [pid 5875] umount2("./33/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6059] setpgid(0, 0 [pid 6058] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6057] close(12 [pid 6056] +++ exited with 0 +++ [pid 6059] <... setpgid resumed>) = 0 [pid 6057] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6057] close(13 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6057] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6059] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 6058] <... openat resumed>) = 3 [pid 6057] close(14 [pid 5875] newfstatat(AT_FDCWD, "./33/cgroup.net", [pid 6058] write(3, "1000", 4 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] unlink("./33/cgroup.net" [pid 6059] <... symlink resumed>) = 0 [pid 6058] <... write resumed>) = 4 [pid 6057] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 [pid 6059] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 6058] close(3 [pid 6057] close(15 [pid 6059] <... symlink resumed>) = 0 [pid 6058] <... close resumed>) = 0 [pid 6057] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=36, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5875] umount2("./33/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6059] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 6058] read(200, [pid 6057] close(16 [pid 5876] restart_syscall(<... resuming interrupted clone ...> [pid 6059] <... symlink resumed>) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6058] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6057] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... restart_syscall resumed>) = 0 [pid 5875] newfstatat(AT_FDCWD, "./33/cgroup.cpu", [pid 6059] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6058] symlink("/dev/binderfs", "./binderfs" [pid 6057] close(17 [pid 6059] <... openat resumed>) = 3 [pid 6058] <... symlink resumed>) = 0 [pid 6057] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6059] write(3, "1000", 4 [pid 6058] write(1, "executing program\n", 18 [pid 6057] close(18 [pid 5876] umount2("./34", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] unlink("./33/cgroup.cpu" [pid 6059] <... write resumed>) = 4 executing program [pid 6059] close(3 [pid 6058] <... write resumed>) = 18 [pid 6057] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6059] <... close resumed>) = 0 [pid 6058] perf_event_open( [pid 6057] close(19 [pid 5876] openat(AT_FDCWD, "./34", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5875] <... unlink resumed>) = 0 [pid 6059] read(200, 0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6057] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... openat resumed>) = 3 [pid 5875] umount2("./33/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6059] symlink("/dev/binderfs", "./binderfs" [pid 6057] close(20 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6059] <... symlink resumed>) = 0 [pid 6058] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6057] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(3, "", executing program [pid 5875] newfstatat(AT_FDCWD, "./33/cgroup", [pid 6059] write(1, "executing program\n", 18 [pid 6058] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6057] close(21 [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6059] <... write resumed>) = 18 [pid 6058] <... bpf resumed>) = 4 [pid 6057] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] getdents64(3, [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6059] perf_event_open( [pid 6057] close(22 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6059] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6058] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6057] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] unlink("./33/cgroup" [pid 6059] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6058] <... bpf resumed>) = 5 [pid 6057] close(23 [pid 5876] umount2("./34/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... unlink resumed>) = 0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6057] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(AT_FDCWD, "./34/binderfs", [pid 6059] <... bpf resumed>) = 4 [pid 6057] close(24 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] getdents64(3, [pid 6059] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6058] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6057] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] unlink("./34/binderfs" [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6059] <... bpf resumed>) = 5 [pid 6057] close(25 [pid 6058] <... bpf resumed>) = 6 [pid 6057] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 5875] close(3 [pid 6059] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6057] close(26) = -1 EBADF (Bad file descriptor) [pid 5875] <... close resumed>) = 0 [pid 6057] close(27 [pid 5876] umount2("./34/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6058] perf_event_open( [pid 6057] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6058] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6057] close(28) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(AT_FDCWD, "./34/cgroup.net", [pid 6059] <... bpf resumed>) = 6 [pid 6058] close(3 [pid 6057] close(29 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] rmdir("./33" [pid 6059] perf_event_open( [pid 6058] <... close resumed>) = 0 [pid 6058] close(4 [pid 6057] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] unlink("./34/cgroup.net" [pid 5875] <... rmdir resumed>) = 0 [pid 6059] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6058] <... close resumed>) = 0 [pid 6057] exit_group(0 [pid 5876] <... unlink resumed>) = 0 [pid 5875] mkdir("./34", 0777 [pid 6059] close(3 [pid 6058] close(5 [pid 6057] <... exit_group resumed>) = ? [pid 5876] umount2("./34/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5875] <... mkdir resumed>) = 0 [pid 6058] <... close resumed>) = 0 [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6058] close(6 [pid 5876] newfstatat(AT_FDCWD, "./34/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] unlink("./34/cgroup.cpu" [pid 6058] <... close resumed>) = 0 [pid 5876] <... unlink resumed>) = 0 [pid 5876] umount2("./34/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5876] newfstatat(AT_FDCWD, "./34/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6058] close(7 [pid 5876] unlink("./34/cgroup"./strace-static-x86_64: Process 6060 attached [pid 6058] <... close resumed>) = 0 [pid 5876] <... unlink resumed>) = 0 [pid 6060] set_robust_list(0x5555947fb660, 24 [pid 6057] +++ exited with 0 +++ [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 36 [pid 6060] <... set_robust_list resumed>) = 0 [pid 6058] close(8 [pid 5876] getdents64(3, [pid 6058] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6058] close(9 [pid 5876] close(3 [pid 6058] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... close resumed>) = 0 [pid 6058] close(10 [pid 5876] rmdir("./34" [pid 6058] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... rmdir resumed>) = 0 [pid 6058] close(11 [pid 5876] mkdir("./35", 0777 [pid 6058] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... mkdir resumed>) = 0 [pid 6058] close(12 [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6058] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 6061 attached [pid 6060] chdir("./34" [pid 6058] close(13 [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=35, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 6060] <... chdir resumed>) = 0 [pid 6058] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] restart_syscall(<... resuming interrupted clone ...> [pid 6058] close(14 [pid 5873] <... restart_syscall resumed>) = 0 [pid 6061] set_robust_list(0x5555947fb660, 24 [pid 6060] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6061] <... set_robust_list resumed>) = 0 [pid 6060] <... prctl resumed>) = 0 [pid 6058] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6058] close(15) = -1 EBADF (Bad file descriptor) [pid 6058] close(16) = -1 EBADF (Bad file descriptor) [pid 6058] close(17) = -1 EBADF (Bad file descriptor) [pid 6058] close(18) = -1 EBADF (Bad file descriptor) [pid 6058] close(19) = -1 EBADF (Bad file descriptor) [pid 6058] close(20) = -1 EBADF (Bad file descriptor) [pid 6058] close(21) = -1 EBADF (Bad file descriptor) [pid 6058] close(22) = -1 EBADF (Bad file descriptor) [pid 6058] close(23) = -1 EBADF (Bad file descriptor) [pid 6058] close(24) = -1 EBADF (Bad file descriptor) [pid 6058] close(25) = -1 EBADF (Bad file descriptor) [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 37 [pid 6058] close(26) = -1 EBADF (Bad file descriptor) [pid 6058] close(27 [pid 6060] setpgid(0, 0 [pid 6058] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6058] close(28 [pid 6061] chdir("./35" [pid 6060] <... setpgid resumed>) = 0 [pid 6058] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] umount2("./33", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6061] <... chdir resumed>) = 0 [pid 6058] close(29) = -1 EBADF (Bad file descriptor) [pid 6058] exit_group(0 [pid 6060] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 6061] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6059] <... close resumed>) = 0 [pid 6058] <... exit_group resumed>) = ? [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6061] <... prctl resumed>) = 0 [pid 6060] <... symlink resumed>) = 0 [pid 6059] close(4 [pid 6058] +++ exited with 0 +++ [pid 5873] openat(AT_FDCWD, "./33", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6061] setpgid(0, 0 [pid 6060] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 6059] <... close resumed>) = 0 [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=36, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6061] <... setpgid resumed>) = 0 [pid 6060] <... symlink resumed>) = 0 [pid 6059] close(5 [pid 5873] <... openat resumed>) = 3 [pid 6061] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 6060] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5873] newfstatat(3, "", [pid 6059] <... close resumed>) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6061] <... symlink resumed>) = 0 [pid 6060] <... symlink resumed>) = 0 [pid 6059] close(6 [pid 6061] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 6060] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5873] getdents64(3, [pid 6061] <... symlink resumed>) = 0 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6061] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 6060] <... openat resumed>) = 3 [pid 5873] umount2("./33/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6061] <... symlink resumed>) = 0 [pid 6059] <... close resumed>) = 0 [pid 6060] write(3, "1000", 4 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6061] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6060] <... write resumed>) = 4 [pid 5873] newfstatat(AT_FDCWD, "./33/binderfs", [pid 6061] <... openat resumed>) = 3 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6060] close(3 [pid 5873] unlink("./33/binderfs" [pid 6061] write(3, "1000", 4 [pid 6060] <... close resumed>) = 0 [pid 5873] <... unlink resumed>) = 0 [pid 6061] <... write resumed>) = 4 [pid 6060] read(200, [pid 6061] close(3 [pid 6060] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5873] umount2("./33/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6061] <... close resumed>) = 0 [pid 6060] symlink("/dev/binderfs", "./binderfs" [pid 6059] close(7 [pid 6061] read(200, [pid 6060] <... symlink resumed>) = 0 [pid 6059] <... close resumed>) = 0 [pid 6061] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6059] close(8 [pid 6061] symlink("/dev/binderfs", "./binderfs"executing program [pid 6059] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6061] <... symlink resumed>) = 0 [pid 6060] write(1, "executing program\n", 18executing program [pid 6061] write(1, "executing program\n", 18 [pid 6060] <... write resumed>) = 18 [pid 6059] close(9 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6061] <... write resumed>) = 18 [pid 6060] perf_event_open( [pid 6059] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6061] perf_event_open( [pid 6059] close(10 [pid 5877] umount2("./34", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] newfstatat(AT_FDCWD, "./33/cgroup.net", [pid 6061] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6060] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6059] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6061] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6060] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6059] close(11 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6061] <... bpf resumed>) = 4 [pid 6060] <... bpf resumed>) = 4 [pid 6059] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] openat(AT_FDCWD, "./34", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5873] unlink("./33/cgroup.net" [pid 6061] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6060] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6059] close(12 [pid 5877] <... openat resumed>) = 3 [pid 5873] <... unlink resumed>) = 0 [pid 6061] <... bpf resumed>) = 5 [pid 5873] umount2("./33/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6061] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6060] <... bpf resumed>) = 5 [pid 6059] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(3, "", [pid 6060] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6059] close(13 [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5873] newfstatat(AT_FDCWD, "./33/cgroup.cpu", [pid 6061] <... bpf resumed>) = 6 [pid 6060] <... bpf resumed>) = 6 [pid 6059] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6061] perf_event_open( [pid 6059] close(14 [pid 6060] perf_event_open( [pid 5877] getdents64(3, [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6061] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6059] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5873] unlink("./33/cgroup.cpu" [pid 6059] close(15 [pid 6061] close(3 [pid 6060] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6059] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./34/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... unlink resumed>) = 0 [pid 6059] close(16 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6059] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] umount2("./33/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6059] close(17 [pid 5877] newfstatat(AT_FDCWD, "./34/binderfs", [pid 6059] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6061] <... close resumed>) = 0 [pid 6060] close(3 [pid 6059] close(18 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] newfstatat(AT_FDCWD, "./33/cgroup", [pid 6061] close(4 [pid 6059] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./34/binderfs" [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6061] <... close resumed>) = 0 [pid 6059] close(19 [pid 6061] close(5 [pid 6059] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 5873] unlink("./33/cgroup" [pid 6061] <... close resumed>) = 0 [pid 6059] close(20 [pid 5873] <... unlink resumed>) = 0 [pid 6061] close(6 [pid 6059] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./34/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] getdents64(3, [pid 6059] close(21 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6061] <... close resumed>) = 0 [pid 6059] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./34/cgroup.net", [pid 5873] close(3 [pid 6061] close(7 [pid 6059] close(22 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6059] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./34/cgroup.net" [pid 5873] <... close resumed>) = 0 [pid 6061] <... close resumed>) = 0 [pid 6059] close(23 [pid 5877] <... unlink resumed>) = 0 [pid 5873] rmdir("./33" [pid 6061] close(8 [pid 6059] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./34/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6061] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6059] close(24 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6061] close(9 [pid 6059] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6061] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6059] close(25 [pid 5877] newfstatat(AT_FDCWD, "./34/cgroup.cpu", [pid 6061] close(10 [pid 6059] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6061] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6059] close(26 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6061] close(11 [pid 6059] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6061] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6059] close(27 [pid 5877] unlink("./34/cgroup.cpu" [pid 6061] close(12 [pid 6059] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 6061] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6059] close(28 [pid 6061] close(13 [pid 6059] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./34/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6061] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6059] close(29 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... rmdir resumed>) = 0 [pid 6061] close(14 [pid 6059] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./34/cgroup", [pid 6061] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6059] exit_group(0 [pid 5873] mkdir("./34", 0777 [pid 6061] close(15 [pid 6059] <... exit_group resumed>) = ? [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6061] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./34/cgroup" [pid 5873] <... mkdir resumed>) = 0 [pid 6061] close(16 [pid 5877] <... unlink resumed>) = 0 [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6061] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6059] +++ exited with 0 +++ [pid 5877] getdents64(3, [pid 6061] close(17 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6061] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6061] close(18 [pid 5877] close(3 [pid 6061] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... close resumed>) = 0 [pid 6061] close(19) = -1 EBADF (Bad file descriptor) [pid 5877] rmdir("./34" [pid 6061] close(20 [pid 5877] <... rmdir resumed>) = 0 [pid 6061] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 6062 attached [pid 6061] close(21 [pid 6062] set_robust_list(0x5555947fb660, 24 [pid 6061] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] mkdir("./35", 0777 [pid 6062] <... set_robust_list resumed>) = 0 [pid 6061] close(22 [pid 5877] <... mkdir resumed>) = 0 [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=34, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 36 [pid 6061] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6062] chdir("./34" [pid 6061] close(23 [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5874] umount2("./32", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6061] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6062] <... chdir resumed>) = 0 [pid 6061] close(24 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 6063 attached [pid 5874] openat(AT_FDCWD, "./32", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6061] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6061] close(25) = -1 EBADF (Bad file descriptor) [pid 6061] close(26) = -1 EBADF (Bad file descriptor) [pid 6061] close(27) = -1 EBADF (Bad file descriptor) [pid 6061] close(28) = -1 EBADF (Bad file descriptor) [pid 6062] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6061] close(29 [pid 6062] setpgid(0, 0) = 0 [pid 6061] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6062] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 6063] set_robust_list(0x5555947fb660, 24) = 0 [pid 6061] exit_group(0 [pid 5874] <... openat resumed>) = 3 [pid 6062] <... symlink resumed>) = 0 [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 37 [pid 6063] chdir("./35" [pid 6061] <... exit_group resumed>) = ? [pid 5874] newfstatat(3, "", [pid 6063] <... chdir resumed>) = 0 [pid 6060] <... close resumed>) = 0 [pid 6062] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 6060] close(4 [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6063] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6061] +++ exited with 0 +++ [pid 6060] <... close resumed>) = 0 [pid 6063] <... prctl resumed>) = 0 [pid 5874] getdents64(3, [pid 6062] <... symlink resumed>) = 0 [pid 6062] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 6060] close(5 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6063] setpgid(0, 0 [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=37, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6063] <... setpgid resumed>) = 0 [pid 5874] umount2("./32/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6062] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6063] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 6062] <... openat resumed>) = 3 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6062] write(3, "1000", 4 [pid 6060] <... close resumed>) = 0 [pid 6062] <... write resumed>) = 4 [pid 6062] close(3 [pid 5874] newfstatat(AT_FDCWD, "./32/binderfs", [pid 6062] <... close resumed>) = 0 [pid 6062] read(200, 0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6062] symlink("/dev/binderfs", "./binderfs" [pid 6060] close(6 [pid 6063] <... symlink resumed>) = 0 [pid 6062] <... symlink resumed>) = 0 [pid 5876] umount2("./35", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] unlink("./32/binderfs"executing program [pid 6063] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6062] write(1, "executing program\n", 18 [pid 5874] <... unlink resumed>) = 0 [pid 6062] <... write resumed>) = 18 [pid 5876] openat(AT_FDCWD, "./35", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6063] <... symlink resumed>) = 0 [pid 6062] perf_event_open( [pid 5874] umount2("./32/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6060] <... close resumed>) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6063] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 6060] close(7 [pid 5874] newfstatat(AT_FDCWD, "./32/cgroup.net", [pid 6062] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6060] <... close resumed>) = 0 [pid 5876] <... openat resumed>) = 3 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6063] <... symlink resumed>) = 0 [pid 6060] close(8 [pid 6063] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5874] unlink("./32/cgroup.net" [pid 6060] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6063] <... openat resumed>) = 3 [pid 6062] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6060] close(9 [pid 5876] newfstatat(3, "", [pid 5874] <... unlink resumed>) = 0 [pid 6063] write(3, "1000", 4 [pid 6062] <... bpf resumed>) = 4 [pid 6060] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5874] umount2("./32/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6063] <... write resumed>) = 4 [pid 6062] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6060] close(10 [pid 6063] close(3 [pid 6060] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6063] <... close resumed>) = 0 [pid 6060] close(11 [pid 5874] newfstatat(AT_FDCWD, "./32/cgroup.cpu", [pid 6063] read(200, [pid 6060] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6063] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6062] <... bpf resumed>) = 5 [pid 6060] close(12 [pid 5876] getdents64(3, [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6063] symlink("/dev/binderfs", "./binderfs" [pid 6062] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6060] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6063] <... symlink resumed>) = 0 [pid 6062] <... bpf resumed>) = 6 [pid 6060] close(13 [pid 5874] unlink("./32/cgroup.cpu" [pid 6063] write(1, "executing program\n", 18 [pid 6060] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6060] close(14executing program [pid 6063] <... write resumed>) = 18 [pid 6062] perf_event_open( [pid 6060] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./35/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... unlink resumed>) = 0 [pid 6063] perf_event_open( [pid 6062] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6060] close(15 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6063] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6062] close(3 [pid 5876] newfstatat(AT_FDCWD, "./35/binderfs", [pid 5874] umount2("./32/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6060] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6063] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6063] <... bpf resumed>) = 4 [pid 6062] <... close resumed>) = 0 [pid 6060] close(16 [pid 5876] unlink("./35/binderfs" [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6063] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6062] close(4 [pid 6060] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6062] <... close resumed>) = 0 [pid 6060] close(17 [pid 5876] <... unlink resumed>) = 0 [pid 5874] newfstatat(AT_FDCWD, "./32/cgroup", [pid 6062] close(5 [pid 6060] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./35/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6063] <... bpf resumed>) = 5 [pid 6062] <... close resumed>) = 0 [pid 6060] close(18 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6063] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6062] close(6 [pid 6060] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] unlink("./32/cgroup" [pid 6063] <... bpf resumed>) = 6 [pid 6060] close(19 [pid 5876] newfstatat(AT_FDCWD, "./35/cgroup.net", [pid 6060] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6063] perf_event_open( [pid 6062] <... close resumed>) = 0 [pid 6060] close(20 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] <... unlink resumed>) = 0 [pid 6060] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6060] close(21 [pid 5874] getdents64(3, [pid 6062] close(7 [pid 5876] unlink("./35/cgroup.net" [pid 6062] <... close resumed>) = 0 [pid 5876] <... unlink resumed>) = 0 [pid 5876] umount2("./35/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6062] close(8 [pid 5876] newfstatat(AT_FDCWD, "./35/cgroup.cpu", [pid 6062] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6062] close(9) = -1 EBADF (Bad file descriptor) [pid 5876] unlink("./35/cgroup.cpu" [pid 6062] close(10 [pid 5876] <... unlink resumed>) = 0 [pid 6063] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6062] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6060] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6063] close(3 [pid 6062] close(11 [pid 6060] close(22 [pid 5876] umount2("./35/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6062] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6060] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] close(3 [pid 6062] close(12 [pid 5876] newfstatat(AT_FDCWD, "./35/cgroup", [pid 5874] <... close resumed>) = 0 [pid 6062] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6060] close(23 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] rmdir("./32" [pid 6062] close(13 [pid 6060] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6062] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6060] close(24 [pid 5876] unlink("./35/cgroup" [pid 5874] <... rmdir resumed>) = 0 [pid 6062] close(14 [pid 6060] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 5874] mkdir("./33", 0777 [pid 6062] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6062] close(15 [pid 5876] getdents64(3, [pid 6062] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6062] close(16 [pid 5876] close(3 [pid 6062] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6060] close(25 [pid 5874] <... mkdir resumed>) = 0 [pid 6060] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6062] close(17 [pid 6060] close(26 [pid 5876] <... close resumed>) = 0 [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6062] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6060] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] rmdir("./35" [pid 6062] close(18 [pid 5876] <... rmdir resumed>) = 0 [pid 6062] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6062] close(19) = -1 EBADF (Bad file descriptor) [pid 5876] mkdir("./36", 0777 [pid 6062] close(20 [pid 5876] <... mkdir resumed>) = 0 [pid 6062] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6062] close(21) = -1 EBADF (Bad file descriptor) [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6064 attached [pid 6062] close(22 [pid 6060] close(27 [pid 6064] set_robust_list(0x5555947fb660, 24 [pid 6062] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6060] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6062] close(23 [pid 6060] close(28 [pid 6062] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 38 [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 35 [pid 6062] close(24) = -1 EBADF (Bad file descriptor) [pid 6062] close(25) = -1 EBADF (Bad file descriptor) [pid 6062] close(26) = -1 EBADF (Bad file descriptor) [pid 6062] close(27) = -1 EBADF (Bad file descriptor) [pid 6062] close(28) = -1 EBADF (Bad file descriptor) [pid 6062] close(29) = -1 EBADF (Bad file descriptor) [pid 6062] exit_group(0) = ? ./strace-static-x86_64: Process 6065 attached [pid 6064] <... set_robust_list resumed>) = 0 [pid 6063] <... close resumed>) = 0 [pid 6060] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6064] chdir("./33" [pid 6060] close(29 [pid 6064] <... chdir resumed>) = 0 [pid 6060] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6060] exit_group(0 [pid 6064] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6060] <... exit_group resumed>) = ? [pid 6065] set_robust_list(0x5555947fb660, 24 [pid 6063] close(4 [pid 6062] +++ exited with 0 +++ [pid 6065] <... set_robust_list resumed>) = 0 [pid 6063] <... close resumed>) = 0 [pid 6065] chdir("./36" [pid 6064] <... prctl resumed>) = 0 [pid 6063] close(5 [pid 6060] +++ exited with 0 +++ [pid 6065] <... chdir resumed>) = 0 [pid 6064] setpgid(0, 0 [pid 6063] <... close resumed>) = 0 [pid 6065] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6064] <... setpgid resumed>) = 0 [pid 6063] close(6 [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=36, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=36, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6065] <... prctl resumed>) = 0 [pid 6064] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 6063] <... close resumed>) = 0 [pid 6065] setpgid(0, 0 [pid 5875] restart_syscall(<... resuming interrupted clone ...> [pid 5873] umount2("./34", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6065] <... setpgid resumed>) = 0 [pid 6064] <... symlink resumed>) = 0 [pid 6063] close(7 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6065] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 6064] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5873] openat(AT_FDCWD, "./34", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6065] <... symlink resumed>) = 0 [pid 6064] <... symlink resumed>) = 0 [pid 6063] <... close resumed>) = 0 [pid 6064] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5873] <... openat resumed>) = 3 [pid 6065] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 6063] close(8 [pid 5873] newfstatat(3, "", [pid 6065] <... symlink resumed>) = 0 [pid 6064] <... symlink resumed>) = 0 [pid 6063] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6063] close(9 [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6065] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 6063] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] getdents64(3, [pid 6065] <... symlink resumed>) = 0 [pid 6064] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6063] close(10 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6065] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6063] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] umount2("./34/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6064] <... openat resumed>) = 3 [pid 5875] <... restart_syscall resumed>) = 0 [pid 6065] <... openat resumed>) = 3 [pid 6064] write(3, "1000", 4 [pid 6063] close(11 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6065] write(3, "1000", 4 [pid 6064] <... write resumed>) = 4 [pid 6063] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] newfstatat(AT_FDCWD, "./34/binderfs", [pid 6065] <... write resumed>) = 4 [pid 6064] close(3 [pid 6063] close(12 [pid 5875] umount2("./34", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6065] close(3 [pid 6064] <... close resumed>) = 0 [pid 6063] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] unlink("./34/binderfs" [pid 6065] <... close resumed>) = 0 [pid 6064] read(200, [pid 6063] close(13 [pid 5875] openat(AT_FDCWD, "./34", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6065] read(200, [pid 6064] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6065] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6064] symlink("/dev/binderfs", "./binderfs" [pid 5875] <... openat resumed>) = 3 [pid 6065] symlink("/dev/binderfs", "./binderfs" [pid 6064] <... symlink resumed>) = 0 [pid 6063] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... unlink resumed>) = 0 [pid 6063] close(14executing program [pid 5875] newfstatat(3, "", [pid 6064] write(1, "executing program\n", 18 [pid 6063] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5873] umount2("./34/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6065] <... symlink resumed>) = 0 [pid 6064] <... write resumed>) = 18 [pid 6063] close(15 [pid 5875] getdents64(3, [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6063] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5873] newfstatat(AT_FDCWD, "./34/cgroup.net", [pid 6063] close(16 [pid 5875] umount2("./34/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 executing program [pid 6065] write(1, "executing program\n", 18 [pid 6064] perf_event_open( [pid 6063] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6065] <... write resumed>) = 18 [pid 6063] close(17 [pid 5875] newfstatat(AT_FDCWD, "./34/binderfs", [pid 5873] unlink("./34/cgroup.net" [pid 6065] perf_event_open( [pid 6063] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... unlink resumed>) = 0 [pid 6064] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6063] close(18 [pid 5875] unlink("./34/binderfs" [pid 5873] umount2("./34/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6063] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6063] close(19 [pid 5875] umount2("./34/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] newfstatat(AT_FDCWD, "./34/cgroup.cpu", [pid 6063] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6065] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6064] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6065] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6064] <... bpf resumed>) = 4 [pid 6063] close(20 [pid 5875] newfstatat(AT_FDCWD, "./34/cgroup.net", [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6065] <... bpf resumed>) = 4 [pid 6064] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6063] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6065] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] unlink("./34/cgroup.cpu" [pid 6063] close(21 [pid 5875] unlink("./34/cgroup.net" [pid 5873] <... unlink resumed>) = 0 [pid 5875] <... unlink resumed>) = 0 [pid 6065] <... bpf resumed>) = 5 [pid 6063] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./34/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6063] close(22 [pid 5873] umount2("./34/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6063] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6063] close(23 [pid 5875] newfstatat(AT_FDCWD, "./34/cgroup.cpu", [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6065] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6063] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] newfstatat(AT_FDCWD, "./34/cgroup", [pid 6063] close(24 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6063] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] unlink("./34/cgroup" [pid 6063] close(25 [pid 5875] unlink("./34/cgroup.cpu" [pid 6063] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6064] <... bpf resumed>) = 5 [pid 6063] close(26 [pid 5875] <... unlink resumed>) = 0 [pid 5873] <... unlink resumed>) = 0 [pid 6065] <... bpf resumed>) = 6 [pid 6064] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6063] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6065] perf_event_open( [pid 6063] close(27 [pid 5875] umount2("./34/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] getdents64(3, [pid 6065] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6064] <... bpf resumed>) = 6 [pid 6063] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6065] close(3 [pid 6064] perf_event_open( [pid 6063] close(28 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6065] <... close resumed>) = 0 [pid 6063] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6064] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5875] newfstatat(AT_FDCWD, "./34/cgroup", [pid 5873] close(3 [pid 6065] close(4 [pid 6063] close(29 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... close resumed>) = 0 [pid 6063] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6065] <... close resumed>) = 0 [pid 6063] exit_group(0 [pid 5873] rmdir("./34" [pid 6065] close(5 [pid 6064] close(3 [pid 6063] <... exit_group resumed>) = ? [pid 5875] unlink("./34/cgroup" [pid 5873] <... rmdir resumed>) = 0 [pid 6065] <... close resumed>) = 0 [pid 5875] <... unlink resumed>) = 0 [pid 5873] mkdir("./35", 0777 [pid 6065] close(6 [pid 5873] <... mkdir resumed>) = 0 [pid 5875] getdents64(3, [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6063] +++ exited with 0 +++ [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5875] close(3) = 0 [pid 5875] rmdir("./34" [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=37, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5875] <... rmdir resumed>) = 0 [pid 5877] restart_syscall(<... resuming interrupted clone ...> [pid 5875] mkdir("./35", 0777) = 0 [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6065] <... close resumed>) = 0 [pid 6065] close(7./strace-static-x86_64: Process 6067 attached ./strace-static-x86_64: Process 6066 attached [pid 6064] <... close resumed>) = 0 [pid 5877] <... restart_syscall resumed>) = 0 [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 37 [pid 6066] set_robust_list(0x5555947fb660, 24 [pid 6067] set_robust_list(0x5555947fb660, 24 [pid 6066] <... set_robust_list resumed>) = 0 [pid 6065] <... close resumed>) = 0 [pid 6064] close(4 [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 37 [pid 6067] <... set_robust_list resumed>) = 0 [pid 6066] chdir("./35" [pid 6065] close(8 [pid 6064] <... close resumed>) = 0 [pid 6067] chdir("./35" [pid 6066] <... chdir resumed>) = 0 [pid 6065] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6064] close(5 [pid 5877] umount2("./35", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6067] <... chdir resumed>) = 0 [pid 6066] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6065] close(9 [pid 6067] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6066] <... prctl resumed>) = 0 [pid 6065] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6064] <... close resumed>) = 0 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6067] <... prctl resumed>) = 0 [pid 6066] setpgid(0, 0 [pid 6067] setpgid(0, 0 [pid 6066] <... setpgid resumed>) = 0 [pid 6065] close(10 [pid 6064] close(6 [pid 5877] openat(AT_FDCWD, "./35", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6067] <... setpgid resumed>) = 0 [pid 6065] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6067] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 6066] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 6065] close(11 [pid 5877] <... openat resumed>) = 3 [pid 6067] <... symlink resumed>) = 0 [pid 6065] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6066] <... symlink resumed>) = 0 [pid 6065] close(12 [pid 6067] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 6066] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 6065] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6064] <... close resumed>) = 0 [pid 5877] newfstatat(3, "", [pid 6067] <... symlink resumed>) = 0 [pid 6066] <... symlink resumed>) = 0 [pid 6067] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 6065] close(13 [pid 6064] close(7 [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6067] <... symlink resumed>) = 0 [pid 6066] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 6065] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6064] <... close resumed>) = 0 [pid 5877] getdents64(3, [pid 6067] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6066] <... symlink resumed>) = 0 [pid 6065] close(14 [pid 6064] close(8 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6066] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6064] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6064] close(9 [pid 6065] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6064] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6066] <... openat resumed>) = 3 [pid 6065] close(15 [pid 6064] close(10 [pid 5877] umount2("./35/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6066] write(3, "1000", 4 [pid 6065] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6064] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6067] <... openat resumed>) = 3 [pid 6066] <... write resumed>) = 4 [pid 6065] close(16 [pid 5877] newfstatat(AT_FDCWD, "./35/binderfs", [pid 6067] write(3, "1000", 4 [pid 6066] close(3 [pid 6065] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6064] close(11) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6066] <... close resumed>) = 0 [pid 6067] <... write resumed>) = 4 [pid 6065] close(17 [pid 6064] close(12 [pid 6066] read(200, [pid 5877] unlink("./35/binderfs" [pid 6067] close(3 [pid 6066] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6065] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6064] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6067] <... close resumed>) = 0 [pid 6066] symlink("/dev/binderfs", "./binderfs" [pid 6065] close(18 [pid 6064] close(13) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 6064] close(14) = -1 EBADF (Bad file descriptor) [pid 6064] close(15) = -1 EBADF (Bad file descriptor) [pid 6064] close(16) = -1 EBADF (Bad file descriptor) [pid 6064] close(17) = -1 EBADF (Bad file descriptor) [pid 6064] close(18) = -1 EBADF (Bad file descriptor) [pid 6064] close(19 [pid 6066] <... symlink resumed>) = 0 [pid 6065] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6064] <... close resumed>) = -1 EBADF (Bad file descriptor) executing program [pid 5877] umount2("./35/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6067] read(200, [pid 6066] write(1, "executing program\n", 18 [pid 6065] close(19 [pid 6064] close(20 [pid 6067] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6066] <... write resumed>) = 18 [pid 6065] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6064] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6067] symlink("/dev/binderfs", "./binderfs" [pid 6065] close(20 [pid 6064] close(21 [pid 5877] newfstatat(AT_FDCWD, "./35/cgroup.net", [pid 6064] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6064] close(22 [pid 6067] <... symlink resumed>) = 0 [pid 6065] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6064] <... close resumed>) = -1 EBADF (Bad file descriptor) executing program [pid 6067] write(1, "executing program\n", 18 [pid 6065] close(21 [pid 6064] close(23 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6067] <... write resumed>) = 18 [pid 6066] perf_event_open( [pid 6065] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6064] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./35/cgroup.net" [pid 6067] perf_event_open( [pid 6065] close(22 [pid 6064] close(24 [pid 6066] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5877] <... unlink resumed>) = 0 [pid 6065] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6066] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6067] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6065] close(23 [pid 5877] umount2("./35/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6064] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6067] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6066] <... bpf resumed>) = 4 [pid 6065] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6064] close(25 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6067] <... bpf resumed>) = 4 [pid 6066] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6065] close(24 [pid 6064] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./35/cgroup.cpu", [pid 6064] close(26 [pid 6067] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6065] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6064] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6065] close(25 [pid 6064] close(27 [pid 6065] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6064] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6067] <... bpf resumed>) = 5 [pid 6065] close(26 [pid 6064] close(28 [pid 6067] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6066] <... bpf resumed>) = 5 [pid 6065] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6064] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./35/cgroup.cpu" [pid 6066] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6065] close(27 [pid 6064] close(29 [pid 6065] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6064] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 6065] close(28 [pid 6064] exit_group(0 [pid 6065] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6064] <... exit_group resumed>) = ? [pid 5877] umount2("./35/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6067] <... bpf resumed>) = 6 [pid 6066] <... bpf resumed>) = 6 [pid 6065] close(29 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6067] perf_event_open( [pid 6065] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./35/cgroup", [pid 6067] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6066] perf_event_open( [pid 6065] exit_group(0 [pid 6064] +++ exited with 0 +++ [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6065] <... exit_group resumed>) = ? [pid 6067] close(3 [pid 6066] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5877] unlink("./35/cgroup" [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=35, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6067] <... close resumed>) = 0 [pid 6065] +++ exited with 0 +++ [pid 5877] <... unlink resumed>) = 0 [pid 6066] close(3 [pid 5877] getdents64(3, [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=38, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5874] restart_syscall(<... resuming interrupted clone ...> [pid 6067] close(4 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5874] <... restart_syscall resumed>) = 0 [pid 6067] <... close resumed>) = 0 [pid 5877] close(3 [pid 6067] close(5 [pid 5877] <... close resumed>) = 0 [pid 5877] rmdir("./35" [pid 6067] <... close resumed>) = 0 [pid 6067] close(6 [pid 5877] <... rmdir resumed>) = 0 [pid 5874] umount2("./33", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5877] mkdir("./36", 0777 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] <... mkdir resumed>) = 0 [pid 6067] <... close resumed>) = 0 [pid 5874] openat(AT_FDCWD, "./33", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5874] <... openat resumed>) = 3 [pid 6067] close(7./strace-static-x86_64: Process 6068 attached [pid 5874] newfstatat(3, "", [pid 6068] set_robust_list(0x5555947fb660, 24 [pid 6067] <... close resumed>) = 0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6068] <... set_robust_list resumed>) = 0 [pid 6067] close(8 [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 38 [pid 5874] getdents64(3, [pid 6068] chdir("./36" [pid 6067] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6068] <... chdir resumed>) = 0 [pid 6067] close(9 [pid 5874] umount2("./33/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6068] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6068] <... prctl resumed>) = 0 [pid 5874] newfstatat(AT_FDCWD, "./33/binderfs", [pid 6068] setpgid(0, 0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6068] <... setpgid resumed>) = 0 [pid 5874] unlink("./33/binderfs" [pid 6068] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 6067] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... unlink resumed>) = 0 [pid 6067] close(10 [pid 5876] umount2("./36", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] umount2("./33/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6068] <... symlink resumed>) = 0 [pid 6067] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6068] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5874] newfstatat(AT_FDCWD, "./33/cgroup.net", [pid 6068] <... symlink resumed>) = 0 [pid 6067] close(11 [pid 5876] openat(AT_FDCWD, "./36", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6068] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5874] unlink("./33/cgroup.net" [pid 6068] <... symlink resumed>) = 0 [pid 5876] <... openat resumed>) = 3 [pid 5874] <... unlink resumed>) = 0 [pid 6068] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6066] <... close resumed>) = 0 [pid 6067] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(3, "", [pid 6067] close(12 [pid 6068] <... openat resumed>) = 3 [pid 6067] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6066] close(4 [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5874] umount2("./33/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6068] write(3, "1000", 4 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6068] <... write resumed>) = 4 [pid 5874] newfstatat(AT_FDCWD, "./33/cgroup.cpu", [pid 6068] close(3 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6068] <... close resumed>) = 0 [pid 6068] read(200, [pid 6067] close(13 [pid 5874] unlink("./33/cgroup.cpu" [pid 6068] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6067] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6066] <... close resumed>) = 0 [pid 5876] getdents64(3, [pid 5874] <... unlink resumed>) = 0 [pid 6068] symlink("/dev/binderfs", "./binderfs" [pid 6067] close(14 [pid 6068] <... symlink resumed>) = 0 executing program [pid 6067] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6066] close(5 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5874] umount2("./33/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6067] close(15 [pid 6068] write(1, "executing program\n", 18 [pid 6067] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./36/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6068] <... write resumed>) = 18 [pid 6067] close(16 [pid 6066] <... close resumed>) = 0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] newfstatat(AT_FDCWD, "./33/cgroup", [pid 6068] perf_event_open( [pid 6067] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6068] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6067] close(17 [pid 6066] close(6 [pid 5876] newfstatat(AT_FDCWD, "./36/binderfs", [pid 6067] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] unlink("./33/cgroup" [pid 6068] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6067] close(18 [pid 6066] <... close resumed>) = 0 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] <... unlink resumed>) = 0 [pid 6067] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6068] <... bpf resumed>) = 4 [pid 6067] close(19 [pid 6066] close(7 [pid 5876] unlink("./36/binderfs" [pid 5874] getdents64(3, [pid 6068] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6067] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6066] <... close resumed>) = 0 [pid 5876] <... unlink resumed>) = 0 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6067] close(20 [pid 5874] close(3 [pid 6066] close(8 [pid 5874] <... close resumed>) = 0 [pid 6066] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] rmdir("./33" [pid 6066] close(9 [pid 6068] <... bpf resumed>) = 5 [pid 6067] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./36/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6066] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... rmdir resumed>) = 0 [pid 6068] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6067] close(21 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6067] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(AT_FDCWD, "./36/cgroup.net", [pid 6067] close(22 [pid 6066] close(10 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] mkdir("./34", 0777 [pid 6067] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] unlink("./36/cgroup.net" [pid 6068] <... bpf resumed>) = 6 [pid 6067] close(23 [pid 6066] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 5874] <... mkdir resumed>) = 0 [pid 6068] perf_event_open( [pid 6067] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6066] close(11 [pid 5876] umount2("./36/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6067] close(24 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6066] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6067] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6066] close(12 [pid 5876] newfstatat(AT_FDCWD, "./36/cgroup.cpu", [pid 6068] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6067] close(25 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6067] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] unlink("./36/cgroup.cpu" [pid 6067] close(26) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 6067] close(27) = -1 EBADF (Bad file descriptor) [pid 6067] close(28 [pid 5876] umount2("./36/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6067] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6067] close(29 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6067] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(AT_FDCWD, "./36/cgroup", [pid 6067] exit_group(0 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 6069 attached [pid 6068] close(3 [pid 6066] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6069] set_robust_list(0x5555947fb660, 24 [pid 6067] <... exit_group resumed>) = ? [pid 6066] close(13 [pid 5876] unlink("./36/cgroup" [pid 6069] <... set_robust_list resumed>) = 0 [pid 6066] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6066] close(14 [pid 5876] <... unlink resumed>) = 0 [pid 6066] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 36 [pid 6066] close(15) = -1 EBADF (Bad file descriptor) [pid 5876] getdents64(3, [pid 6069] chdir("./34" [pid 6067] +++ exited with 0 +++ [pid 6066] close(16 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6069] <... chdir resumed>) = 0 [pid 6066] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] close(3 [pid 6069] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6066] close(17 [pid 5876] <... close resumed>) = 0 [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=37, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 6069] <... prctl resumed>) = 0 [pid 6066] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] rmdir("./36" [pid 6069] setpgid(0, 0 [pid 5876] <... rmdir resumed>) = 0 [pid 6069] <... setpgid resumed>) = 0 [pid 6069] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 6066] close(18 [pid 5876] mkdir("./37", 0777 [pid 6066] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... mkdir resumed>) = 0 [pid 5875] umount2("./35", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6068] <... close resumed>) = 0 [pid 6069] <... symlink resumed>) = 0 [pid 6068] close(4 [pid 6066] close(19 [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6068] <... close resumed>) = 0 [pid 6068] close(5./strace-static-x86_64: Process 6070 attached [pid 6069] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 6068] <... close resumed>) = 0 [pid 6066] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] openat(AT_FDCWD, "./35", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6068] close(6 [pid 6070] set_robust_list(0x5555947fb660, 24 [pid 6069] <... symlink resumed>) = 0 [pid 6066] close(20 [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 39 [pid 5875] <... openat resumed>) = 3 [pid 6070] <... set_robust_list resumed>) = 0 [pid 6069] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 6068] <... close resumed>) = 0 [pid 6066] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(3, "", [pid 6066] close(21 [pid 6070] chdir("./37" [pid 6069] <... symlink resumed>) = 0 [pid 6068] close(7 [pid 6066] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6070] <... chdir resumed>) = 0 [pid 6069] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6068] <... close resumed>) = 0 [pid 6066] close(22 [pid 6068] close(8 [pid 6066] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6070] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6068] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6066] close(23 [pid 5875] getdents64(3, [pid 6070] <... prctl resumed>) = 0 [pid 6069] <... openat resumed>) = 3 [pid 6068] close(9 [pid 6066] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6070] setpgid(0, 0 [pid 6069] write(3, "1000", 4 [pid 6068] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6066] close(24 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6070] <... setpgid resumed>) = 0 [pid 6068] close(10 [pid 6066] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6069] <... write resumed>) = 4 [pid 6066] close(25 [pid 5875] umount2("./35/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6069] close(3 [pid 6068] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6066] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6068] close(11 [pid 6066] close(26 [pid 6069] <... close resumed>) = 0 [pid 5875] newfstatat(AT_FDCWD, "./35/binderfs", [pid 6066] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6070] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 6069] read(200, [pid 6068] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6066] close(27 [pid 6068] close(12 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6066] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6068] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6066] close(28 [pid 6068] close(13 [pid 5875] unlink("./35/binderfs" [pid 6066] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6070] <... symlink resumed>) = 0 [pid 6069] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6068] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6066] close(29 [pid 6070] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 6068] close(14 [pid 5875] <... unlink resumed>) = 0 [pid 6066] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./35/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6069] symlink("/dev/binderfs", "./binderfs" [pid 6066] exit_group(0 [pid 6070] <... symlink resumed>) = 0 [pid 6069] <... symlink resumed>) = 0 [pid 6069] write(1, "executing program\n", 18executing program ) = 18 [pid 6069] perf_event_open( [pid 6066] <... exit_group resumed>) = ? [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6068] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6069] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6069] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80) = 4 [pid 6069] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6070] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 6068] close(15 [pid 6066] +++ exited with 0 +++ [pid 5875] newfstatat(AT_FDCWD, "./35/cgroup.net", [pid 6069] <... bpf resumed>) = 5 [pid 6068] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6069] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6070] <... symlink resumed>) = 0 [pid 6069] <... bpf resumed>) = 6 [pid 6068] close(16 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=37, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6070] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6069] perf_event_open( [pid 6068] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] unlink("./35/cgroup.net" [pid 5873] restart_syscall(<... resuming interrupted clone ...> [pid 6069] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6068] close(17 [pid 6069] close(3 [pid 6068] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 [pid 6068] close(18 [pid 6070] <... openat resumed>) = 3 [pid 6068] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./35/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6070] write(3, "1000", 4 [pid 6068] close(19) = -1 EBADF (Bad file descriptor) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... restart_syscall resumed>) = 0 [pid 6070] <... write resumed>) = 4 [pid 6068] close(20 [pid 5875] newfstatat(AT_FDCWD, "./35/cgroup.cpu", [pid 6070] close(3 [pid 6068] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6070] <... close resumed>) = 0 [pid 6068] close(21) = -1 EBADF (Bad file descriptor) [pid 6068] close(22 [pid 6070] read(200, [pid 6068] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] unlink("./35/cgroup.cpu" [pid 5873] umount2("./35", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6070] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6068] close(23 [pid 6070] symlink("/dev/binderfs", "./binderfs" [pid 6068] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6068] close(24) = -1 EBADF (Bad file descriptor) [pid 6068] close(25 [pid 6070] <... symlink resumed>) = 0 [pid 6068] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6068] close(26) = -1 EBADF (Bad file descriptor) [pid 6068] close(27) = -1 EBADF (Bad file descriptor) [pid 6068] close(28) = -1 EBADF (Bad file descriptor) [pid 6068] close(29) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 executing program [pid 6070] write(1, "executing program\n", 18 [pid 6068] exit_group(0 [pid 5875] umount2("./35/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] openat(AT_FDCWD, "./35", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6070] <... write resumed>) = 18 [pid 6068] <... exit_group resumed>) = ? [pid 6070] perf_event_open( [pid 6069] <... close resumed>) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... openat resumed>) = 3 [pid 6070] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6068] +++ exited with 0 +++ [pid 6070] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5875] newfstatat(AT_FDCWD, "./35/cgroup", [pid 5873] newfstatat(3, "", [pid 6070] <... bpf resumed>) = 4 [pid 6069] close(4 [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=38, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5877] restart_syscall(<... resuming interrupted clone ...> [pid 6070] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5877] <... restart_syscall resumed>) = 0 [pid 5875] unlink("./35/cgroup" [pid 5873] getdents64(3, [pid 6069] <... close resumed>) = 0 [pid 6069] close(5 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6070] <... bpf resumed>) = 5 [pid 6069] <... close resumed>) = 0 [pid 5877] umount2("./36", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... unlink resumed>) = 0 [pid 5873] umount2("./35/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6070] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6069] close(6 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] getdents64(3, [pid 5877] openat(AT_FDCWD, "./36", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] close(3 [pid 5877] <... openat resumed>) = 3 [pid 5875] <... close resumed>) = 0 [pid 5877] newfstatat(3, "", [pid 5875] rmdir("./35" [pid 5873] newfstatat(AT_FDCWD, "./35/binderfs", [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5875] <... rmdir resumed>) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6069] <... close resumed>) = 0 [pid 5877] getdents64(3, [pid 5875] mkdir("./36", 0777 [pid 5873] unlink("./35/binderfs" [pid 6070] <... bpf resumed>) = 6 [pid 6069] close(7 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5875] <... mkdir resumed>) = 0 [pid 5873] <... unlink resumed>) = 0 [pid 5877] umount2("./36/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5873] umount2("./35/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6070] perf_event_open( [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6069] <... close resumed>) = 0 [pid 6070] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6069] close(8 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 6071 attached [pid 6069] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./36/binderfs", [pid 5873] newfstatat(AT_FDCWD, "./35/cgroup.net", [pid 6069] close(9 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6071] set_robust_list(0x5555947fb660, 24 [pid 6070] close(3 [pid 6069] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./36/binderfs" [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 38 [pid 5873] unlink("./35/cgroup.net" [pid 6071] <... set_robust_list resumed>) = 0 [pid 6069] close(10 [pid 5877] <... unlink resumed>) = 0 [pid 6069] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... unlink resumed>) = 0 [pid 5877] umount2("./36/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6071] chdir("./36" [pid 6069] close(11 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] umount2("./35/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6071] <... chdir resumed>) = 0 [pid 6069] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./36/cgroup.net", [pid 6071] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6069] close(12 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6071] <... prctl resumed>) = 0 [pid 6069] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./36/cgroup.net" [pid 5873] newfstatat(AT_FDCWD, "./35/cgroup.cpu", [pid 6071] setpgid(0, 0 [pid 6069] close(13 [pid 5877] <... unlink resumed>) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6071] <... setpgid resumed>) = 0 [pid 5877] umount2("./36/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6069] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6071] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] unlink("./35/cgroup.cpu" [pid 6071] <... symlink resumed>) = 0 [pid 6069] close(14 [pid 5877] newfstatat(AT_FDCWD, "./36/cgroup.cpu", [pid 6069] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6071] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5873] <... unlink resumed>) = 0 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6071] <... symlink resumed>) = 0 [pid 6069] close(15 [pid 5877] unlink("./36/cgroup.cpu" [pid 5873] umount2("./35/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6069] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 6071] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 6069] close(16 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6069] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6069] close(17) = -1 EBADF (Bad file descriptor) [pid 6069] close(18) = -1 EBADF (Bad file descriptor) [pid 6069] close(19) = -1 EBADF (Bad file descriptor) [pid 6069] close(20) = -1 EBADF (Bad file descriptor) [pid 6069] close(21 [pid 5877] umount2("./36/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6071] <... symlink resumed>) = 0 [pid 6069] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] newfstatat(AT_FDCWD, "./35/cgroup", [pid 6071] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6069] close(22 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6069] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./36/cgroup", [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6071] <... openat resumed>) = 3 [pid 6069] close(23) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] unlink("./35/cgroup" [pid 6071] write(3, "1000", 4 [pid 6069] close(24 [pid 5877] unlink("./36/cgroup" [pid 6069] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... unlink resumed>) = 0 [pid 6069] close(25) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 6071] <... write resumed>) = 4 [pid 6069] close(26 [pid 5873] getdents64(3, [pid 6069] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6071] close(3 [pid 6069] close(27 [pid 5877] getdents64(3, [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6071] <... close resumed>) = 0 [pid 6069] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5873] close(3 [pid 6071] read(200, [pid 6069] close(28 [pid 5877] close(3 [pid 5873] <... close resumed>) = 0 [pid 6071] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6069] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6071] symlink("/dev/binderfs", "./binderfs" [pid 5877] <... close resumed>) = 0 [pid 5873] rmdir("./35" [pid 6071] <... symlink resumed>) = 0 [pid 6069] close(29executing program [pid 6071] write(1, "executing program\n", 18 [pid 6069] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] rmdir("./36" [pid 5873] <... rmdir resumed>) = 0 [pid 6071] <... write resumed>) = 18 [pid 6071] perf_event_open( [pid 6069] exit_group(0 [pid 5877] <... rmdir resumed>) = 0 [pid 5873] mkdir("./36", 0777 [pid 5877] mkdir("./37", 0777 [pid 6069] <... exit_group resumed>) = ? [pid 5873] <... mkdir resumed>) = 0 [pid 5877] <... mkdir resumed>) = 0 [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6069] +++ exited with 0 +++ [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6072 attached [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=36, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6072] set_robust_list(0x5555947fb660, 24) = 0 [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 38 ./strace-static-x86_64: Process 6073 attached [pid 6072] chdir("./36" [pid 5874] umount2("./34", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6073] set_robust_list(0x5555947fb660, 24 [pid 6072] <... chdir resumed>) = 0 [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 39 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6073] <... set_robust_list resumed>) = 0 [pid 6072] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5874] openat(AT_FDCWD, "./34", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6072] <... prctl resumed>) = 0 [pid 5874] <... openat resumed>) = 3 [pid 6072] setpgid(0, 0 [pid 5874] newfstatat(3, "", [pid 6073] chdir("./37" [pid 6072] <... setpgid resumed>) = 0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6073] <... chdir resumed>) = 0 [pid 6073] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6072] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5874] getdents64(3, [pid 6073] <... prctl resumed>) = 0 [pid 6072] <... symlink resumed>) = 0 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6073] setpgid(0, 0 [pid 6072] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5874] umount2("./34/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6073] <... setpgid resumed>) = 0 [pid 6072] <... symlink resumed>) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] newfstatat(AT_FDCWD, "./34/binderfs", [pid 6072] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6073] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 6072] <... symlink resumed>) = 0 [pid 6072] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5874] unlink("./34/binderfs" [pid 6073] <... symlink resumed>) = 0 [pid 6072] <... openat resumed>) = 3 [pid 6073] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu") = 0 [pid 5874] <... unlink resumed>) = 0 [pid 6070] <... close resumed>) = 0 [pid 5874] umount2("./34/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6073] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 6072] write(3, "1000", 4 [pid 6071] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6070] close(4 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6073] <... symlink resumed>) = 0 [pid 6072] <... write resumed>) = 4 [pid 6070] <... close resumed>) = 0 [pid 5874] newfstatat(AT_FDCWD, "./34/cgroup.net", [pid 6073] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6072] close(3 [pid 6071] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6070] close(5 [pid 6072] <... close resumed>) = 0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6072] read(200, 0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6070] <... close resumed>) = 0 [pid 6073] <... openat resumed>) = 3 [pid 6071] <... bpf resumed>) = 4 [pid 6070] close(6 [pid 5874] unlink("./34/cgroup.net" [pid 6072] symlink("/dev/binderfs", "./binderfs" [pid 6071] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6073] write(3, "1000", 4 [pid 6070] <... close resumed>) = 0 [pid 5874] <... unlink resumed>) = 0 [pid 6073] <... write resumed>) = 4 [pid 6072] <... symlink resumed>) = 0 [pid 6070] close(7 [pid 5874] umount2("./34/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6073] close(3executing program [pid 6072] write(1, "executing program\n", 18 [pid 6071] <... bpf resumed>) = 5 [pid 6070] <... close resumed>) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6073] <... close resumed>) = 0 [pid 6072] <... write resumed>) = 18 [pid 6070] close(8 [pid 5874] newfstatat(AT_FDCWD, "./34/cgroup.cpu", [pid 6073] read(200, [pid 6072] perf_event_open( [pid 6071] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6070] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6072] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6073] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6071] <... bpf resumed>) = 6 [pid 6070] close(9 [pid 5874] unlink("./34/cgroup.cpu" [pid 6073] symlink("/dev/binderfs", "./binderfs" [pid 6072] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6071] perf_event_open( [pid 6070] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6073] <... symlink resumed>) = 0 [pid 6071] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6071] close(3 [pid 6072] <... bpf resumed>) = 4 executing program [pid 5874] <... unlink resumed>) = 0 [pid 6073] write(1, "executing program\n", 18 [pid 6072] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6070] close(10 [pid 6073] <... write resumed>) = 18 [pid 6071] <... close resumed>) = 0 [pid 6070] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./34/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6073] perf_event_open( [pid 6071] close(4 [pid 6070] close(11 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6073] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6072] <... bpf resumed>) = 5 [pid 6070] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] newfstatat(AT_FDCWD, "./34/cgroup", [pid 6073] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6072] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6070] close(12 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6073] <... bpf resumed>) = 4 [pid 6072] <... bpf resumed>) = 6 [pid 6071] <... close resumed>) = 0 [pid 6070] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] unlink("./34/cgroup" [pid 6073] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6072] perf_event_open( [pid 6070] close(13 [pid 5874] <... unlink resumed>) = 0 [pid 6071] close(5 [pid 6070] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] getdents64(3, [pid 6070] close(14 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6073] <... bpf resumed>) = 5 [pid 6072] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6071] <... close resumed>) = 0 [pid 6070] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] close(3 [pid 6073] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6071] close(6 [pid 6070] close(15 [pid 5874] <... close resumed>) = 0 [pid 6072] close(3 [pid 6070] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6071] <... close resumed>) = 0 [pid 6070] close(16 [pid 5874] rmdir("./34" [pid 6073] <... bpf resumed>) = 6 [pid 6071] close(7 [pid 6073] perf_event_open( [pid 6072] <... close resumed>) = 0 [pid 6071] <... close resumed>) = 0 [pid 6070] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... rmdir resumed>) = 0 [pid 6073] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6072] close(4 [pid 6070] close(17 [pid 5874] mkdir("./35", 0777 [pid 6071] close(8) = -1 EBADF (Bad file descriptor) [pid 6071] close(9) = -1 EBADF (Bad file descriptor) [pid 6073] close(3 [pid 6071] close(10 [pid 6070] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... mkdir resumed>) = 0 [pid 6071] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6070] close(18) = -1 EBADF (Bad file descriptor) [pid 6071] close(11 [pid 6070] close(19 [pid 6071] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6072] <... close resumed>) = 0 [pid 6071] close(12 [pid 6070] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6072] close(5 [pid 6071] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6070] close(20 [pid 6072] <... close resumed>) = 0 [pid 6071] close(13 [pid 6070] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6072] close(6 [pid 6070] close(21) = -1 EBADF (Bad file descriptor) [pid 6070] close(22) = -1 EBADF (Bad file descriptor) [pid 6070] close(23) = -1 EBADF (Bad file descriptor) [pid 6070] close(24) = -1 EBADF (Bad file descriptor) [pid 6070] close(25) = -1 EBADF (Bad file descriptor) [pid 6070] close(26) = -1 EBADF (Bad file descriptor) [pid 6070] close(27) = -1 EBADF (Bad file descriptor) [pid 6070] close(28) = -1 EBADF (Bad file descriptor) [pid 6070] close(29) = -1 EBADF (Bad file descriptor) [pid 6070] exit_group(0) = ? ./strace-static-x86_64: Process 6074 attached [pid 6072] <... close resumed>) = 0 [pid 6071] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6072] close(7 [pid 6071] close(14 [pid 6074] set_robust_list(0x5555947fb660, 24 [pid 6072] <... close resumed>) = 0 [pid 6071] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6070] +++ exited with 0 +++ [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 37 [pid 6074] <... set_robust_list resumed>) = 0 [pid 6072] close(8 [pid 6071] close(15 [pid 6074] chdir("./35" [pid 6072] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6071] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=39, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6074] <... chdir resumed>) = 0 [pid 6072] close(9 [pid 6071] close(16 [pid 5876] umount2("./37", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6074] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6072] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6071] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6074] <... prctl resumed>) = 0 [pid 6074] setpgid(0, 0 [pid 6072] close(10 [pid 6071] close(17 [pid 5876] openat(AT_FDCWD, "./37", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6074] <... setpgid resumed>) = 0 [pid 6072] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6071] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... openat resumed>) = 3 [pid 6074] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 6072] close(11 [pid 6071] close(18 [pid 5876] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6072] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6071] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] getdents64(3, [pid 6072] close(12 [pid 6071] close(19 [pid 6074] <... symlink resumed>) = 0 [pid 6072] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6071] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6074] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 6071] close(20 [pid 5876] umount2("./37/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6074] <... symlink resumed>) = 0 [pid 6072] close(13 [pid 6071] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6072] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6071] close(21 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6072] close(14 [pid 6071] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(AT_FDCWD, "./37/binderfs", [pid 6074] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 6072] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6071] close(22 [pid 6072] close(15 [pid 6071] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6072] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6071] close(23 [pid 6074] <... symlink resumed>) = 0 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6074] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6072] close(16 [pid 6071] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] unlink("./37/binderfs" [pid 6072] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6071] close(24 [pid 6074] <... openat resumed>) = 3 [pid 6072] close(17 [pid 6071] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6072] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6071] close(25 [pid 6072] close(18 [pid 6071] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6072] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6071] close(26 [pid 6072] close(19 [pid 6071] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6072] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6071] close(27 [pid 6074] write(3, "1000", 4 [pid 6072] close(20 [pid 6071] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 6074] <... write resumed>) = 4 [pid 6072] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6071] close(28 [pid 5876] umount2("./37/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6074] close(3 [pid 6072] close(21 [pid 6071] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6074] <... close resumed>) = 0 [pid 6071] close(29 [pid 5876] newfstatat(AT_FDCWD, "./37/cgroup.net", [pid 6074] read(200, [pid 6072] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6071] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6074] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6072] close(22 [pid 6071] exit_group(0 [pid 5876] unlink("./37/cgroup.net" [pid 6074] symlink("/dev/binderfs", "./binderfs" [pid 6072] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6071] <... exit_group resumed>) = ? [pid 5876] <... unlink resumed>) = 0 [pid 6074] <... symlink resumed>) = 0 [pid 6072] close(23) = -1 EBADF (Bad file descriptor) [pid 6071] +++ exited with 0 +++ [pid 5876] umount2("./37/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6072] close(24) = -1 EBADF (Bad file descriptor) [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=38, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6072] close(25 [pid 6074] write(1, "executing program\n", 18 [pid 6072] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] restart_syscall(<... resuming interrupted clone ...>executing program [pid 6072] close(26 [pid 6074] <... write resumed>) = 18 [pid 5876] newfstatat(AT_FDCWD, "./37/cgroup.cpu", [pid 6072] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6072] close(27 [pid 6074] perf_event_open( [pid 6072] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] unlink("./37/cgroup.cpu" [pid 6072] close(28) = -1 EBADF (Bad file descriptor) [pid 6074] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6072] close(29) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 6074] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6073] <... close resumed>) = 0 [pid 6072] exit_group(0 [pid 5876] umount2("./37/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6074] <... bpf resumed>) = 4 [pid 6073] close(4 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6074] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6072] <... exit_group resumed>) = ? [pid 5876] newfstatat(AT_FDCWD, "./37/cgroup", [pid 6074] <... bpf resumed>) = 5 [pid 6073] <... close resumed>) = 0 [pid 5875] <... restart_syscall resumed>) = 0 [pid 6073] close(5) = 0 [pid 6073] close(6) = 0 [pid 6072] +++ exited with 0 +++ [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=38, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 6074] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6073] close(7 [pid 5876] unlink("./37/cgroup" [pid 6073] <... close resumed>) = 0 [pid 5875] umount2("./36", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6073] close(8) = -1 EBADF (Bad file descriptor) [pid 5873] umount2("./36", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6073] close(9 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6074] <... bpf resumed>) = 6 [pid 6073] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6073] close(10 [pid 6074] perf_event_open( [pid 6073] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] openat(AT_FDCWD, "./36", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6074] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5876] <... unlink resumed>) = 0 [pid 5875] openat(AT_FDCWD, "./36", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5873] <... openat resumed>) = 3 [pid 6074] close(3 [pid 6073] close(11) = -1 EBADF (Bad file descriptor) [pid 5876] getdents64(3, [pid 5875] <... openat resumed>) = 3 [pid 5873] newfstatat(3, "", [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5875] newfstatat(3, "", [pid 5876] close(3 [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5876] <... close resumed>) = 0 [pid 5875] getdents64(3, [pid 5876] rmdir("./37" [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5876] <... rmdir resumed>) = 0 [pid 5875] umount2("./36/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] mkdir("./38", 0777 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] <... mkdir resumed>) = 0 [pid 5875] newfstatat(AT_FDCWD, "./36/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5875] unlink("./36/binderfs" [pid 6073] close(12 [pid 5875] <... unlink resumed>) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6073] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6073] close(13) = -1 EBADF (Bad file descriptor) [pid 5873] getdents64(3, [pid 6073] close(14 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6073] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./36/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] umount2("./36/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 6075 attached [pid 6073] close(15 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6073] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(AT_FDCWD, "./36/cgroup.net", [pid 5873] newfstatat(AT_FDCWD, "./36/binderfs", [pid 6075] set_robust_list(0x5555947fb660, 24 [pid 6073] close(16 [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 40 [pid 6075] <... set_robust_list resumed>) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] unlink("./36/cgroup.net" [pid 6073] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6073] close(17 [pid 5875] <... unlink resumed>) = 0 [pid 5873] unlink("./36/binderfs" [pid 6075] chdir("./38" [pid 6073] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./36/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... unlink resumed>) = 0 [pid 6075] <... chdir resumed>) = 0 [pid 6073] close(18 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] umount2("./36/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6075] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6073] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(AT_FDCWD, "./36/cgroup.cpu", [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6075] <... prctl resumed>) = 0 [pid 6073] close(19 [pid 5873] newfstatat(AT_FDCWD, "./36/cgroup.net", [pid 6075] setpgid(0, 0 [pid 6073] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6075] <... setpgid resumed>) = 0 [pid 6073] close(20 [pid 5875] unlink("./36/cgroup.cpu" [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6073] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] unlink("./36/cgroup.net" [pid 6073] close(21 [pid 5875] <... unlink resumed>) = 0 [pid 5873] <... unlink resumed>) = 0 [pid 6073] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./36/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] umount2("./36/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6073] close(22) = -1 EBADF (Bad file descriptor) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6073] close(23 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] newfstatat(AT_FDCWD, "./36/cgroup.cpu", [pid 6075] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 6073] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(AT_FDCWD, "./36/cgroup", [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6073] close(24 [pid 5873] unlink("./36/cgroup.cpu" [pid 6073] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... unlink resumed>) = 0 [pid 6073] close(25 [pid 5875] unlink("./36/cgroup" [pid 5873] umount2("./36/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6073] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6073] close(26) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 [pid 5873] newfstatat(AT_FDCWD, "./36/cgroup", [pid 6075] <... symlink resumed>) = 0 [pid 6073] close(27 [pid 5875] getdents64(3, [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6075] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 6073] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5875] close(3 [pid 6073] close(28 [pid 5873] unlink("./36/cgroup" [pid 6075] <... symlink resumed>) = 0 [pid 6073] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... close resumed>) = 0 [pid 5873] <... unlink resumed>) = 0 [pid 6075] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 6073] close(29 [pid 5875] rmdir("./36" [pid 6073] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] getdents64(3, [pid 6073] exit_group(0 [pid 5875] <... rmdir resumed>) = 0 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6073] <... exit_group resumed>) = ? [pid 5875] mkdir("./37", 0777 [pid 5873] close(3 [pid 6075] <... symlink resumed>) = 0 [pid 5875] <... mkdir resumed>) = 0 [pid 6075] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5873] <... close resumed>) = 0 [pid 6073] +++ exited with 0 +++ [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5873] rmdir("./36" [pid 6075] <... openat resumed>) = 3 [pid 5873] <... rmdir resumed>) = 0 [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=39, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5873] mkdir("./37", 0777 [pid 6075] write(3, "1000", 4 [pid 5877] restart_syscall(<... resuming interrupted clone ...> [pid 5873] <... mkdir resumed>) = 0 [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6074] <... close resumed>) = 0 ./strace-static-x86_64: Process 6077 attached ./strace-static-x86_64: Process 6076 attached [pid 6075] <... write resumed>) = 4 [pid 5877] <... restart_syscall resumed>) = 0 [pid 6077] set_robust_list(0x5555947fb660, 24 [pid 6076] set_robust_list(0x5555947fb660, 24 [pid 6075] close(3 [pid 6074] close(4 [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 39 [pid 6076] <... set_robust_list resumed>) = 0 [pid 6074] <... close resumed>) = 0 [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 39 [pid 6077] <... set_robust_list resumed>) = 0 [pid 6076] chdir("./37" [pid 6075] <... close resumed>) = 0 [pid 6074] close(5 [pid 6076] <... chdir resumed>) = 0 [pid 6075] read(200, [pid 6074] <... close resumed>) = 0 [pid 5877] umount2("./37", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6077] chdir("./37" [pid 6076] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6075] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6074] close(6 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6077] <... chdir resumed>) = 0 [pid 6076] <... prctl resumed>) = 0 [pid 6075] symlink("/dev/binderfs", "./binderfs" [pid 5877] openat(AT_FDCWD, "./37", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6077] prctl(PR_SET_PDEATHSIG, SIGKILLexecuting program [pid 6076] setpgid(0, 0 [pid 6075] <... symlink resumed>) = 0 [pid 6074] <... close resumed>) = 0 [pid 5877] <... openat resumed>) = 3 [pid 6075] write(1, "executing program\n", 18 [pid 5877] newfstatat(3, "", [pid 6077] <... prctl resumed>) = 0 [pid 6076] <... setpgid resumed>) = 0 [pid 6075] <... write resumed>) = 18 [pid 6074] close(7 [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6075] perf_event_open( [pid 5877] getdents64(3, 0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5877] umount2("./37/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6077] setpgid(0, 0 [pid 6076] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 6075] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6074] <... close resumed>) = 0 [pid 5877] newfstatat(AT_FDCWD, "./37/binderfs", [pid 6077] <... setpgid resumed>) = 0 [pid 6075] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6074] close(8 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6077] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 6076] <... symlink resumed>) = 0 [pid 6074] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6075] <... bpf resumed>) = 4 [pid 6074] close(9 [pid 5877] unlink("./37/binderfs" [pid 6075] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6074] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6074] close(10 [pid 6076] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5877] <... unlink resumed>) = 0 [pid 6077] <... symlink resumed>) = 0 [pid 6074] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6074] close(11 [pid 6076] <... symlink resumed>) = 0 [pid 6074] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6074] close(12) = -1 EBADF (Bad file descriptor) [pid 6074] close(13 [pid 5877] umount2("./37/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6074] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6074] close(14) = -1 EBADF (Bad file descriptor) [pid 6074] close(15) = -1 EBADF (Bad file descriptor) [pid 6074] close(16) = -1 EBADF (Bad file descriptor) [pid 6074] close(17) = -1 EBADF (Bad file descriptor) [pid 6074] close(18) = -1 EBADF (Bad file descriptor) [pid 6074] close(19) = -1 EBADF (Bad file descriptor) [pid 6074] close(20) = -1 EBADF (Bad file descriptor) [pid 6074] close(21) = -1 EBADF (Bad file descriptor) [pid 6074] close(22) = -1 EBADF (Bad file descriptor) [pid 6074] close(23) = -1 EBADF (Bad file descriptor) [pid 6074] close(24) = -1 EBADF (Bad file descriptor) [pid 6074] close(25) = -1 EBADF (Bad file descriptor) [pid 6074] close(26) = -1 EBADF (Bad file descriptor) [pid 6074] close(27) = -1 EBADF (Bad file descriptor) [pid 6074] close(28) = -1 EBADF (Bad file descriptor) [pid 6074] close(29) = -1 EBADF (Bad file descriptor) [pid 6074] exit_group(0) = ? [pid 6077] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 6076] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 6075] <... bpf resumed>) = 5 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6077] <... symlink resumed>) = 0 [pid 6076] <... symlink resumed>) = 0 [pid 6075] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5877] newfstatat(AT_FDCWD, "./37/cgroup.net", [pid 6077] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 6076] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6075] <... bpf resumed>) = 6 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6076] <... openat resumed>) = 3 [pid 6075] perf_event_open( [pid 6074] +++ exited with 0 +++ [pid 6077] <... symlink resumed>) = 0 [pid 5877] unlink("./37/cgroup.net" [pid 6077] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6076] write(3, "1000", 4 [pid 5877] <... unlink resumed>) = 0 [pid 6075] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=37, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6076] <... write resumed>) = 4 [pid 5877] umount2("./37/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] umount2("./35", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6076] close(3 [pid 6075] close(3 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6076] <... close resumed>) = 0 [pid 5874] openat(AT_FDCWD, "./35", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5874] newfstatat(3, "", [pid 6077] <... openat resumed>) = 3 [pid 6076] read(200, [pid 5877] newfstatat(AT_FDCWD, "./37/cgroup.cpu", [pid 6077] write(3, "1000", 4 [pid 6076] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6077] <... write resumed>) = 4 [pid 6076] symlink("/dev/binderfs", "./binderfs" [pid 5877] unlink("./37/cgroup.cpu" [pid 6077] close(3 [pid 5877] <... unlink resumed>) = 0 [pid 5874] getdents64(3, [pid 6077] <... close resumed>) = 0 [pid 5877] umount2("./37/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6077] read(200, 0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] umount2("./35/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6077] symlink("/dev/binderfs", "./binderfs" [pid 5877] newfstatat(AT_FDCWD, "./37/cgroup", [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6077] <... symlink resumed>) = 0 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6077] write(1, "executing program\n", 18 [pid 6076] <... symlink resumed>) = 0 [pid 5874] newfstatat(AT_FDCWD, "./35/binderfs", [pid 6076] write(1, "executing program\n", 18executing program [pid 6077] <... write resumed>) = 18 executing program [pid 5877] unlink("./37/cgroup" [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6077] perf_event_open( [pid 6076] <... write resumed>) = 18 [pid 5877] <... unlink resumed>) = 0 [pid 5874] unlink("./35/binderfs" [pid 5877] getdents64(3, [pid 5874] <... unlink resumed>) = 0 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5874] umount2("./35/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6076] perf_event_open( [pid 5877] close(3 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] <... close resumed>) = 0 [pid 5874] newfstatat(AT_FDCWD, "./35/cgroup.net", [pid 5877] rmdir("./37" [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5877] <... rmdir resumed>) = 0 [pid 5874] unlink("./35/cgroup.net" [pid 5877] mkdir("./38", 0777 [pid 5874] <... unlink resumed>) = 0 [pid 5877] <... mkdir resumed>) = 0 [pid 6077] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6076] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6075] <... close resumed>) = 0 [pid 5874] umount2("./35/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6077] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6076] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6077] <... bpf resumed>) = 4 [pid 6076] <... bpf resumed>) = 4 [pid 6075] close(4 [pid 5874] newfstatat(AT_FDCWD, "./35/cgroup.cpu", ./strace-static-x86_64: Process 6078 attached [pid 6076] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6075] <... close resumed>) = 0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6078] set_robust_list(0x5555947fb660, 24 [pid 6077] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6075] close(5 [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 40 [pid 6078] <... set_robust_list resumed>) = 0 [pid 6076] <... bpf resumed>) = 5 [pid 5874] unlink("./35/cgroup.cpu" [pid 6078] chdir("./38" [pid 6076] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5874] <... unlink resumed>) = 0 [pid 6076] <... bpf resumed>) = 6 [pid 6078] <... chdir resumed>) = 0 [pid 6077] <... bpf resumed>) = 5 [pid 6076] perf_event_open( [pid 6078] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6076] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6075] <... close resumed>) = 0 [pid 5874] umount2("./35/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6078] <... prctl resumed>) = 0 [pid 6077] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6076] close(3 [pid 6075] close(6 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6078] setpgid(0, 0 [pid 6076] <... close resumed>) = 0 [pid 6075] <... close resumed>) = 0 [pid 5874] newfstatat(AT_FDCWD, "./35/cgroup", [pid 6078] <... setpgid resumed>) = 0 [pid 6075] close(7 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6078] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 6077] <... bpf resumed>) = 6 [pid 6075] <... close resumed>) = 0 [pid 6077] perf_event_open( [pid 6076] close(4 [pid 6075] close(8 [pid 5874] unlink("./35/cgroup" [pid 6078] <... symlink resumed>) = 0 [pid 6077] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6076] <... close resumed>) = 0 [pid 6075] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... unlink resumed>) = 0 [pid 6078] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 6077] close(3 [pid 6076] close(5 [pid 6075] close(9 [pid 6078] <... symlink resumed>) = 0 [pid 6076] <... close resumed>) = 0 [pid 5874] getdents64(3, [pid 6075] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6076] close(6 [pid 6078] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 6075] close(10 [pid 6078] <... symlink resumed>) = 0 [pid 6076] <... close resumed>) = 0 [pid 6075] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6076] close(7 [pid 6078] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6075] close(11 [pid 5874] close(3 [pid 6078] <... openat resumed>) = 3 [pid 6076] <... close resumed>) = 0 [pid 6076] close(8) = -1 EBADF (Bad file descriptor) [pid 6076] close(9) = -1 EBADF (Bad file descriptor) [pid 6076] close(10) = -1 EBADF (Bad file descriptor) [pid 6076] close(11) = -1 EBADF (Bad file descriptor) [pid 6076] close(12) = -1 EBADF (Bad file descriptor) [pid 6076] close(13) = -1 EBADF (Bad file descriptor) [pid 6076] close(14) = -1 EBADF (Bad file descriptor) [pid 6076] close(15) = -1 EBADF (Bad file descriptor) [pid 6076] close(16) = -1 EBADF (Bad file descriptor) [pid 6076] close(17) = -1 EBADF (Bad file descriptor) [pid 6076] close(18) = -1 EBADF (Bad file descriptor) [pid 6076] close(19) = -1 EBADF (Bad file descriptor) [pid 6076] close(20) = -1 EBADF (Bad file descriptor) [pid 6076] close(21) = -1 EBADF (Bad file descriptor) [pid 6076] close(22) = -1 EBADF (Bad file descriptor) [pid 6076] close(23) = -1 EBADF (Bad file descriptor) [pid 6076] close(24) = -1 EBADF (Bad file descriptor) [pid 6076] close(25) = -1 EBADF (Bad file descriptor) [pid 6076] close(26) = -1 EBADF (Bad file descriptor) [pid 6076] close(27) = -1 EBADF (Bad file descriptor) [pid 6076] close(28) = -1 EBADF (Bad file descriptor) [pid 6076] close(29) = -1 EBADF (Bad file descriptor) [pid 6078] write(3, "1000", 4 [pid 6076] exit_group(0 [pid 6075] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6076] <... exit_group resumed>) = ? [pid 6078] <... write resumed>) = 4 [pid 6077] <... close resumed>) = 0 [pid 6075] close(12 [pid 5874] <... close resumed>) = 0 [pid 5874] rmdir("./35" [pid 6078] close(3 [pid 6077] close(4 [pid 6075] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... rmdir resumed>) = 0 [pid 6078] <... close resumed>) = 0 [pid 6077] <... close resumed>) = 0 [pid 6075] close(13 [pid 5874] mkdir("./36", 0777 [pid 6078] read(200, [pid 6077] close(5 [pid 6076] +++ exited with 0 +++ [pid 6075] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6078] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6077] <... close resumed>) = 0 [pid 6075] close(14 [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=39, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5874] <... mkdir resumed>) = 0 [pid 6078] symlink("/dev/binderfs", "./binderfs" [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6078] <... symlink resumed>) = 0 [pid 6077] close(6 [pid 6075] <... close resumed>) = -1 EBADF (Bad file descriptor) executing program [pid 6078] write(1, "executing program\n", 18 [pid 6077] <... close resumed>) = 0 [pid 6078] <... write resumed>) = 18 [pid 6075] close(15) = -1 EBADF (Bad file descriptor) [pid 6078] perf_event_open( [pid 6075] close(16./strace-static-x86_64: Process 6079 attached [pid 6077] close(7 [pid 6075] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6079] set_robust_list(0x5555947fb660, 24 [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 38 [pid 6079] <... set_robust_list resumed>) = 0 [pid 6078] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6075] close(17 [pid 6078] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6077] <... close resumed>) = 0 [pid 6075] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6079] chdir("./36" [pid 6078] <... bpf resumed>) = 4 [pid 6077] close(8 [pid 6075] close(18 [pid 6077] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6075] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6077] close(9 [pid 6075] close(19 [pid 6079] <... chdir resumed>) = 0 [pid 6079] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6079] setpgid(0, 0) = 0 [pid 6078] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6077] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6075] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6079] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 6077] close(10 [pid 6075] close(20 [pid 6079] <... symlink resumed>) = 0 [pid 6077] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6075] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6079] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 6078] <... bpf resumed>) = 5 [pid 6077] close(11 [pid 6075] close(21 [pid 6079] <... symlink resumed>) = 0 [pid 6078] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6077] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6075] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6079] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 6077] close(12 [pid 6075] close(22 [pid 6078] <... bpf resumed>) = 6 [pid 6077] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6075] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6079] <... symlink resumed>) = 0 [pid 6078] perf_event_open( [pid 6077] close(13 [pid 6075] close(23 [pid 5875] umount2("./37", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6079] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6078] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6077] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6075] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6078] close(3 [pid 6077] close(14 [pid 5875] openat(AT_FDCWD, "./37", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6079] <... openat resumed>) = 3 [pid 6077] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6075] close(24 [pid 6077] close(15 [pid 6075] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... openat resumed>) = 3 [pid 6077] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6075] close(25 [pid 6077] close(16 [pid 6075] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(3, "", [pid 6077] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6075] close(26 [pid 6079] write(3, "1000", 4 [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6079] <... write resumed>) = 4 [pid 6077] close(17 [pid 6075] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6079] close(3) = 0 [pid 6077] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6075] close(27 [pid 5875] getdents64(3, [pid 6079] read(200, [pid 6077] close(18 [pid 6075] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6079] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6079] symlink("/dev/binderfs", "./binderfs" [pid 6077] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6075] close(28 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6077] close(19 [pid 6075] <... close resumed>) = -1 EBADF (Bad file descriptor) executing program [pid 6079] <... symlink resumed>) = 0 [pid 6077] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6075] close(29 [pid 5875] umount2("./37/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6079] write(1, "executing program\n", 18 [pid 6077] close(20 [pid 6075] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6079] <... write resumed>) = 18 [pid 6079] perf_event_open( [pid 6077] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6075] exit_group(0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6077] close(21 [pid 6075] <... exit_group resumed>) = ? [pid 5875] newfstatat(AT_FDCWD, "./37/binderfs", [pid 6077] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6077] close(22 [pid 6075] +++ exited with 0 +++ [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6077] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6077] close(23 [pid 5875] unlink("./37/binderfs" [pid 6077] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 [pid 6077] close(24) = -1 EBADF (Bad file descriptor) [pid 6077] close(25 [pid 5875] umount2("./37/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6077] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6077] close(26) = -1 EBADF (Bad file descriptor) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6077] close(27 [pid 5875] newfstatat(AT_FDCWD, "./37/cgroup.net", [pid 6077] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6077] close(28) = -1 EBADF (Bad file descriptor) [pid 5875] unlink("./37/cgroup.net" [pid 6077] close(29 [pid 5875] <... unlink resumed>) = 0 [pid 6077] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6077] exit_group(0 [pid 5875] umount2("./37/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6077] <... exit_group resumed>) = ? [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=40, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5875] newfstatat(AT_FDCWD, "./37/cgroup.cpu", [pid 5876] restart_syscall(<... resuming interrupted clone ...> [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] <... restart_syscall resumed>) = 0 [pid 5875] unlink("./37/cgroup.cpu") = 0 [pid 5876] umount2("./38", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6077] +++ exited with 0 +++ [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] umount2("./37/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] openat(AT_FDCWD, "./38", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6078] <... close resumed>) = 0 [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=39, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6078] close(4 [pid 5876] <... openat resumed>) = 3 [pid 5875] newfstatat(AT_FDCWD, "./37/cgroup", [pid 6078] <... close resumed>) = 0 [pid 5876] newfstatat(3, "", [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6078] close(5 [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5875] unlink("./37/cgroup" [pid 5873] umount2("./37", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6078] <... close resumed>) = 0 [pid 5875] <... unlink resumed>) = 0 [pid 6078] close(6 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6079] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5876] getdents64(3, [pid 5873] openat(AT_FDCWD, "./37", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6079] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6078] <... close resumed>) = 0 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5875] getdents64(3, [pid 5873] <... openat resumed>) = 3 [pid 6079] <... bpf resumed>) = 4 [pid 6078] close(7 [pid 5876] umount2("./38/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5873] newfstatat(3, "", [pid 6079] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6078] <... close resumed>) = 0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] close(3 [pid 6078] close(8 [pid 5876] newfstatat(AT_FDCWD, "./38/binderfs", [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] unlink("./38/binderfs" [pid 5873] getdents64(3, [pid 6079] <... bpf resumed>) = 5 [pid 6078] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 5875] <... close resumed>) = 0 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6078] close(9 [pid 5875] rmdir("./37" [pid 6079] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6078] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6078] close(10 [pid 5876] umount2("./38/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... rmdir resumed>) = 0 [pid 5873] umount2("./37/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6078] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] mkdir("./38", 0777 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6078] close(11 [pid 5876] newfstatat(AT_FDCWD, "./38/cgroup.net", [pid 5873] newfstatat(AT_FDCWD, "./37/binderfs", [pid 6078] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] <... mkdir resumed>) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6078] close(12 [pid 5876] unlink("./38/cgroup.net" [pid 5873] unlink("./37/binderfs" [pid 6079] <... bpf resumed>) = 6 [pid 6078] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5873] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 6080 attached [pid 6079] perf_event_open( [pid 6078] close(13 [pid 5876] umount2("./38/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] umount2("./37/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6080] set_robust_list(0x5555947fb660, 24 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6080] <... set_robust_list resumed>) = 0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] newfstatat(AT_FDCWD, "./38/cgroup.cpu", [pid 5873] newfstatat(AT_FDCWD, "./37/cgroup.net", [pid 6080] chdir("./38" [pid 6078] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6079] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6078] close(14 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6080] <... chdir resumed>) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] unlink("./38/cgroup.cpu" [pid 6079] close(3 [pid 6078] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] unlink("./37/cgroup.net" [pid 6080] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6078] close(15 [pid 5876] <... unlink resumed>) = 0 [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 40 [pid 6078] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... unlink resumed>) = 0 [pid 6080] <... prctl resumed>) = 0 [pid 6078] close(16 [pid 5876] umount2("./38/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6078] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] umount2("./37/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6080] setpgid(0, 0 [pid 6078] close(17) = -1 EBADF (Bad file descriptor) [pid 6078] close(18 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6080] <... setpgid resumed>) = 0 [pid 6078] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6078] close(19) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(AT_FDCWD, "./38/cgroup", [pid 6078] close(20) = -1 EBADF (Bad file descriptor) [pid 6078] close(21 [pid 6080] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 6078] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] newfstatat(AT_FDCWD, "./37/cgroup.cpu", [pid 6078] close(22 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6078] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6078] close(23) = -1 EBADF (Bad file descriptor) [pid 6078] close(24) = -1 EBADF (Bad file descriptor) [pid 6078] close(25) = -1 EBADF (Bad file descriptor) [pid 6078] close(26) = -1 EBADF (Bad file descriptor) [pid 6078] close(27) = -1 EBADF (Bad file descriptor) [pid 6078] close(28) = -1 EBADF (Bad file descriptor) [pid 6078] close(29) = -1 EBADF (Bad file descriptor) [pid 6078] exit_group(0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6078] <... exit_group resumed>) = ? [pid 6080] <... symlink resumed>) = 0 [pid 5876] unlink("./38/cgroup" [pid 5873] unlink("./37/cgroup.cpu" [pid 6080] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu") = 0 [pid 5876] <... unlink resumed>) = 0 [pid 5873] <... unlink resumed>) = 0 [pid 5876] getdents64(3, [pid 5873] umount2("./37/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6080] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 6078] +++ exited with 0 +++ [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6080] <... symlink resumed>) = 0 [pid 6080] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5876] close(3 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6080] <... openat resumed>) = 3 [pid 5876] <... close resumed>) = 0 [pid 5873] newfstatat(AT_FDCWD, "./37/cgroup", [pid 5876] rmdir("./38" [pid 6080] write(3, "1000", 4 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6080] <... write resumed>) = 4 [pid 5876] <... rmdir resumed>) = 0 [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=40, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5873] unlink("./37/cgroup" [pid 6080] close(3 [pid 5877] restart_syscall(<... resuming interrupted clone ...> [pid 5876] mkdir("./39", 0777 [pid 5873] <... unlink resumed>) = 0 [pid 6080] <... close resumed>) = 0 [pid 5877] <... restart_syscall resumed>) = 0 [pid 5873] getdents64(3, [pid 6080] read(200, 0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6080] symlink("/dev/binderfs", "./binderfs" [pid 5873] close(3 [pid 6080] <... symlink resumed>) = 0 executing program [pid 5876] <... mkdir resumed>) = 0 [pid 5873] <... close resumed>) = 0 [pid 6080] write(1, "executing program\n", 18 [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5873] rmdir("./37" [pid 6080] <... write resumed>) = 18 [pid 5877] umount2("./38", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6080] perf_event_open( [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... rmdir resumed>) = 0 [pid 5877] openat(AT_FDCWD, "./38", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5877] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5877] getdents64(3, 0x5555947fc6f0 /* 6 entries */, 32768) = 176 ./strace-static-x86_64: Process 6081 attached [pid 6080] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6079] <... close resumed>) = 0 [pid 5877] umount2("./38/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] mkdir("./38", 0777 [pid 6081] set_robust_list(0x5555947fb660, 24 [pid 6080] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6079] close(4 [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 41 [pid 6081] <... set_robust_list resumed>) = 0 [pid 6080] <... bpf resumed>) = 4 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... mkdir resumed>) = 0 [pid 5877] newfstatat(AT_FDCWD, "./38/binderfs", [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6081] chdir("./39" [pid 6080] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6079] <... close resumed>) = 0 ./strace-static-x86_64: Process 6082 attached [pid 6081] <... chdir resumed>) = 0 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6082] set_robust_list(0x5555947fb660, 24 [pid 6081] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6079] close(5 [pid 5877] unlink("./38/binderfs" [pid 6082] <... set_robust_list resumed>) = 0 [pid 6081] <... prctl resumed>) = 0 [pid 6079] <... close resumed>) = 0 [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 40 [pid 6082] chdir("./38" [pid 6081] setpgid(0, 0 [pid 6080] <... bpf resumed>) = 5 [pid 5877] <... unlink resumed>) = 0 [pid 6082] <... chdir resumed>) = 0 [pid 6081] <... setpgid resumed>) = 0 [pid 6079] close(6 [pid 5877] umount2("./38/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6082] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6080] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6082] <... prctl resumed>) = 0 [pid 6081] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 6082] setpgid(0, 0) = 0 [pid 6082] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 6079] <... close resumed>) = 0 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] newfstatat(AT_FDCWD, "./38/cgroup.net", [pid 6081] <... symlink resumed>) = 0 [pid 6082] <... symlink resumed>) = 0 [pid 6079] close(7 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6080] <... bpf resumed>) = 6 [pid 5877] unlink("./38/cgroup.net" [pid 6081] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 6080] perf_event_open( [pid 6082] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 6079] <... close resumed>) = 0 [pid 5877] <... unlink resumed>) = 0 [pid 6082] <... symlink resumed>) = 0 [pid 6081] <... symlink resumed>) = 0 [pid 6082] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 6080] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6082] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6081] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 6080] close(3 [pid 6079] close(8 [pid 5877] umount2("./38/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6082] <... openat resumed>) = 3 [pid 6081] <... symlink resumed>) = 0 [pid 6079] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6079] close(9 [pid 5877] newfstatat(AT_FDCWD, "./38/cgroup.cpu", [pid 6082] write(3, "1000", 4 [pid 6079] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6079] close(10 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6082] <... write resumed>) = 4 [pid 6081] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6079] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./38/cgroup.cpu" [pid 6082] close(3 [pid 6081] <... openat resumed>) = 3 [pid 6079] close(11 [pid 5877] <... unlink resumed>) = 0 [pid 6082] <... close resumed>) = 0 [pid 6079] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./38/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6082] read(200, [pid 6079] close(12 [pid 6081] write(3, "1000", 4 [pid 6079] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6082] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6081] <... write resumed>) = 4 [pid 6079] close(13 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6082] symlink("/dev/binderfs", "./binderfs" [pid 6081] close(3 [pid 6079] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./38/cgroup", [pid 6081] <... close resumed>) = 0 [pid 6081] read(200, 0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6081] symlink("/dev/binderfs", "./binderfs" [pid 6082] <... symlink resumed>) = 0 [pid 6079] close(14 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 executing program executing program [pid 6082] write(1, "executing program\n", 18 [pid 6079] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./38/cgroup" [pid 6082] <... write resumed>) = 18 [pid 6079] close(15 [pid 6081] <... symlink resumed>) = 0 [pid 6082] perf_event_open( [pid 6079] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6081] write(1, "executing program\n", 18) = 18 [pid 6079] close(16 [pid 5877] <... unlink resumed>) = 0 [pid 6081] perf_event_open( [pid 6079] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6079] close(17) = -1 EBADF (Bad file descriptor) [pid 6079] close(18) = -1 EBADF (Bad file descriptor) [pid 6079] close(19 [pid 5877] getdents64(3, [pid 6079] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6079] close(20 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6079] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6079] close(21 [pid 5877] close(3 [pid 6079] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6079] close(22) = -1 EBADF (Bad file descriptor) [pid 5877] <... close resumed>) = 0 [pid 6079] close(23) = -1 EBADF (Bad file descriptor) [pid 5877] rmdir("./38" [pid 6079] close(24) = -1 EBADF (Bad file descriptor) [pid 6079] close(25) = -1 EBADF (Bad file descriptor) [pid 6079] close(26) = -1 EBADF (Bad file descriptor) [pid 5877] <... rmdir resumed>) = 0 [pid 6079] close(27) = -1 EBADF (Bad file descriptor) [pid 5877] mkdir("./39", 0777 [pid 6079] close(28) = -1 EBADF (Bad file descriptor) [pid 6079] close(29 [pid 5877] <... mkdir resumed>) = 0 [pid 6079] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6079] exit_group(0) = ? ./strace-static-x86_64: Process 6083 attached [pid 6083] set_robust_list(0x5555947fb660, 24 [pid 6082] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 41 [pid 6083] <... set_robust_list resumed>) = 0 [pid 6083] chdir("./39" [pid 6082] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6083] <... chdir resumed>) = 0 [pid 6082] <... bpf resumed>) = 4 [pid 6080] <... close resumed>) = 0 [pid 6083] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6082] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6081] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6079] +++ exited with 0 +++ [pid 6080] close(4 [pid 6083] <... prctl resumed>) = 0 [pid 6080] <... close resumed>) = 0 [pid 6083] setpgid(0, 0 [pid 6081] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6080] close(5 [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=38, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 6083] <... setpgid resumed>) = 0 [pid 6082] <... bpf resumed>) = 5 [pid 5874] restart_syscall(<... resuming interrupted clone ...> [pid 6083] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 6081] <... bpf resumed>) = 4 [pid 6080] <... close resumed>) = 0 [pid 6083] <... symlink resumed>) = 0 [pid 6082] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6081] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6080] close(6 [pid 5874] <... restart_syscall resumed>) = 0 [pid 6083] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 6082] <... bpf resumed>) = 6 [pid 6082] perf_event_open({type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5874] umount2("./36", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6082] close(3 [pid 6081] <... bpf resumed>) = 5 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6082] <... close resumed>) = 0 [pid 5874] openat(AT_FDCWD, "./36", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6083] <... symlink resumed>) = 0 [pid 6082] close(4 [pid 5874] <... openat resumed>) = 3 [pid 6083] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 6082] <... close resumed>) = 0 [pid 6080] <... close resumed>) = 0 [pid 6082] close(5 [pid 5874] newfstatat(3, "", [pid 6082] <... close resumed>) = 0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6082] close(6 [pid 6083] <... symlink resumed>) = 0 [pid 5874] getdents64(3, [pid 6080] close(7 [pid 6083] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6082] <... close resumed>) = 0 [pid 6080] <... close resumed>) = 0 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6083] write(3, "1000", 4 [pid 6082] close(7 [pid 6080] close(8 [pid 5874] umount2("./36/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6083] <... write resumed>) = 4 [pid 6082] <... close resumed>) = 0 [pid 6081] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6080] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6083] close(3 [pid 6082] close(8 [pid 6080] close(9 [pid 5874] newfstatat(AT_FDCWD, "./36/binderfs", [pid 6083] <... close resumed>) = 0 [pid 6082] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6080] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6081] <... bpf resumed>) = 6 [pid 6083] read(200, [pid 6082] close(9 [pid 6080] close(10 [pid 5874] unlink("./36/binderfs" [pid 6083] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6082] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6081] perf_event_open( [pid 6080] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... unlink resumed>) = 0 [pid 6083] symlink("/dev/binderfs", "./binderfs" [pid 6082] close(10 [pid 6080] close(11 [pid 6081] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6083] <... symlink resumed>) = 0 [pid 6082] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6080] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./36/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6082] close(11 [pid 6081] close(3 [pid 6080] close(12 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) executing program [pid 6083] write(1, "executing program\n", 18 [pid 6082] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6080] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6083] <... write resumed>) = 18 [pid 6082] close(12 [pid 6080] close(13 [pid 5874] newfstatat(AT_FDCWD, "./36/cgroup.net", [pid 6083] perf_event_open( [pid 6082] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6080] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6080] close(14 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6082] close(13 [pid 6080] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6082] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6080] close(15 [pid 5874] unlink("./36/cgroup.net" [pid 6082] close(14 [pid 6080] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... unlink resumed>) = 0 [pid 6080] close(16 [pid 6082] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6080] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./36/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6082] close(15 [pid 6080] close(17 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6082] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6080] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6082] close(16 [pid 5874] newfstatat(AT_FDCWD, "./36/cgroup.cpu", [pid 6082] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6080] close(18 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6082] close(17 [pid 6080] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] unlink("./36/cgroup.cpu" [pid 6082] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6080] close(19 [pid 5874] <... unlink resumed>) = 0 [pid 6082] close(18 [pid 6080] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6082] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6080] close(20 [pid 5874] umount2("./36/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6082] close(19 [pid 6080] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6082] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6082] close(20 [pid 6080] close(21 [pid 5874] newfstatat(AT_FDCWD, "./36/cgroup", [pid 6082] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6080] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6082] close(21 [pid 6080] close(22 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6082] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6080] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6082] close(22 [pid 5874] unlink("./36/cgroup" [pid 6080] close(23 [pid 6082] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... unlink resumed>) = 0 [pid 6080] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6082] close(23 [pid 6080] close(24 [pid 6082] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6080] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] getdents64(3, [pid 6082] close(24 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6080] close(25 [pid 6082] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6080] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] close(3 [pid 6080] close(26) = -1 EBADF (Bad file descriptor) [pid 6082] close(25 [pid 5874] <... close resumed>) = 0 [pid 6082] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6080] close(27 [pid 5874] rmdir("./36" [pid 6082] close(26 [pid 6080] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6080] close(28) = -1 EBADF (Bad file descriptor) [pid 5874] <... rmdir resumed>) = 0 [pid 6080] close(29) = -1 EBADF (Bad file descriptor) [pid 6082] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6080] exit_group(0 [pid 5874] mkdir("./37", 0777 [pid 6082] close(27 [pid 6080] <... exit_group resumed>) = ? [pid 5874] <... mkdir resumed>) = 0 [pid 6082] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6082] close(28 [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6084 attached [pid 6080] +++ exited with 0 +++ [pid 6082] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6082] close(29 [pid 6084] set_robust_list(0x5555947fb660, 24 [pid 6082] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=40, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 39 [pid 6084] <... set_robust_list resumed>) = 0 [pid 6082] exit_group(0 [pid 5875] restart_syscall(<... resuming interrupted clone ...> [pid 6082] <... exit_group resumed>) = ? [pid 5875] <... restart_syscall resumed>) = 0 [pid 6084] chdir("./37") = 0 [pid 6084] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5875] umount2("./38", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6084] setpgid(0, 0 [pid 6082] +++ exited with 0 +++ [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6084] <... setpgid resumed>) = 0 [pid 5875] openat(AT_FDCWD, "./38", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6084] symlink("/syzcgroup/unified/syz1", "./cgroup") = 0 [pid 6081] <... close resumed>) = 0 [pid 5875] <... openat resumed>) = 3 [pid 6083] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6081] close(4 [pid 5875] newfstatat(3, "", [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=40, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 6084] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5873] umount2("./38", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6084] <... symlink resumed>) = 0 [pid 6083] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6081] <... close resumed>) = 0 [pid 5875] getdents64(3, [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6084] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 6083] <... bpf resumed>) = 4 [pid 6081] close(5 [pid 6084] <... symlink resumed>) = 0 [pid 6083] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6081] <... close resumed>) = 0 [pid 5873] openat(AT_FDCWD, "./38", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6084] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5873] <... openat resumed>) = 3 [pid 6084] <... openat resumed>) = 3 [pid 6083] <... bpf resumed>) = 5 [pid 6081] close(6 [pid 5875] umount2("./38/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] newfstatat(3, "", [pid 6084] write(3, "1000", 4 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6081] <... close resumed>) = 0 [pid 6083] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6081] close(7 [pid 6084] <... write resumed>) = 4 [pid 5875] newfstatat(AT_FDCWD, "./38/binderfs", [pid 5873] getdents64(3, [pid 6084] close(3 [pid 6081] <... close resumed>) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6084] <... close resumed>) = 0 [pid 6083] <... bpf resumed>) = 6 [pid 6081] close(8 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6083] perf_event_open( [pid 6081] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] unlink("./38/binderfs" [pid 6084] read(200, [pid 6083] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6081] close(9 [pid 5875] <... unlink resumed>) = 0 [pid 5873] umount2("./38/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6083] close(3 [pid 6081] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6081] close(10) = -1 EBADF (Bad file descriptor) [pid 6081] close(11) = -1 EBADF (Bad file descriptor) [pid 6081] close(12 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6084] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6081] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./38/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6081] close(13 [pid 6084] symlink("/dev/binderfs", "./binderfs" [pid 6081] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6081] close(14) = -1 EBADF (Bad file descriptor) [pid 6081] close(15) = -1 EBADF (Bad file descriptor) [pid 6084] <... symlink resumed>) = 0 [pid 6081] close(16 [pid 5875] newfstatat(AT_FDCWD, "./38/cgroup.net", [pid 5873] newfstatat(AT_FDCWD, "./38/binderfs", [pid 6081] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6081] close(17) = -1 EBADF (Bad file descriptor) [pid 6081] close(18) = -1 EBADF (Bad file descriptor) [pid 6081] close(19 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6081] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6081] close(20) = -1 EBADF (Bad file descriptor) [pid 5875] unlink("./38/cgroup.net" [pid 6081] close(21) = -1 EBADF (Bad file descriptor) [pid 6081] close(22) = -1 EBADF (Bad file descriptor) [pid 6081] close(23) = -1 EBADF (Bad file descriptor) [pid 6081] close(24 [pid 5875] <... unlink resumed>) = 0 [pid 5873] unlink("./38/binderfs" [pid 6081] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./38/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6081] close(25) = -1 EBADF (Bad file descriptor) executing program [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... unlink resumed>) = 0 [pid 6084] write(1, "executing program\n", 18 [pid 6081] close(26 [pid 5873] umount2("./38/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6084] <... write resumed>) = 18 [pid 6081] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(AT_FDCWD, "./38/cgroup.cpu", [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6081] close(27) = -1 EBADF (Bad file descriptor) [pid 6084] perf_event_open( [pid 6081] close(28 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] newfstatat(AT_FDCWD, "./38/cgroup.net", [pid 6081] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] unlink("./38/cgroup.cpu" [pid 6081] close(29 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6081] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 [pid 5873] unlink("./38/cgroup.net" [pid 5875] umount2("./38/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5873] <... unlink resumed>) = 0 [pid 6081] exit_group(0 [pid 6084] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6083] <... close resumed>) = 0 [pid 5875] newfstatat(AT_FDCWD, "./38/cgroup", [pid 5873] umount2("./38/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6084] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6081] <... exit_group resumed>) = ? [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6084] <... bpf resumed>) = 4 [pid 6083] close(4) = 0 [pid 6083] close(5) = 0 [pid 6083] close(6) = 0 [pid 6081] +++ exited with 0 +++ [pid 5875] unlink("./38/cgroup" [pid 5873] newfstatat(AT_FDCWD, "./38/cgroup.cpu", [pid 6084] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5875] <... unlink resumed>) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6083] close(7 [pid 5873] unlink("./38/cgroup.cpu" [pid 6083] <... close resumed>) = 0 [pid 6083] close(8) = -1 EBADF (Bad file descriptor) [pid 6083] close(9) = -1 EBADF (Bad file descriptor) [pid 6083] close(10) = -1 EBADF (Bad file descriptor) [pid 6083] close(11) = -1 EBADF (Bad file descriptor) [pid 6083] close(12) = -1 EBADF (Bad file descriptor) [pid 6083] close(13) = -1 EBADF (Bad file descriptor) [pid 6083] close(14 [pid 6084] <... bpf resumed>) = 5 [pid 6083] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6083] close(15) = -1 EBADF (Bad file descriptor) [pid 5875] getdents64(3, [pid 5873] <... unlink resumed>) = 0 [pid 6083] close(16) = -1 EBADF (Bad file descriptor) [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5873] umount2("./38/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6083] close(17 [pid 5875] close(3 [pid 6083] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6083] close(18) = -1 EBADF (Bad file descriptor) [pid 5875] <... close resumed>) = 0 [pid 5873] newfstatat(AT_FDCWD, "./38/cgroup", [pid 6083] close(19 [pid 5875] rmdir("./38" [pid 6083] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6083] close(20) = -1 EBADF (Bad file descriptor) [pid 5875] <... rmdir resumed>) = 0 [pid 5873] unlink("./38/cgroup" [pid 6083] close(21 [pid 5875] mkdir("./39", 0777 [pid 6083] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6083] close(22) = -1 EBADF (Bad file descriptor) [pid 5873] <... unlink resumed>) = 0 [pid 6083] close(23) = -1 EBADF (Bad file descriptor) [pid 6083] close(24 [pid 5875] <... mkdir resumed>) = 0 [pid 5873] getdents64(3, [pid 6084] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6083] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=41, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6083] close(25 [pid 5873] close(3 [pid 6083] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6083] close(26 [pid 5873] <... close resumed>) = 0 [pid 6083] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6083] close(27 [pid 5873] rmdir("./38" [pid 6083] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6083] close(28) = -1 EBADF (Bad file descriptor) [pid 6083] close(29 [pid 5873] <... rmdir resumed>) = 0 [pid 6083] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] mkdir("./39", 0777 [pid 6083] exit_group(0) = ? [pid 5873] <... mkdir resumed>) = 0 [pid 6084] <... bpf resumed>) = 6 [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6084] perf_event_open(./strace-static-x86_64: Process 6085 attached [pid 6085] set_robust_list(0x5555947fb660, 24) = 0 [pid 6085] chdir("./39") = 0 ./strace-static-x86_64: Process 6086 attached [pid 6085] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6084] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6083] +++ exited with 0 +++ [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 41 [pid 6086] set_robust_list(0x5555947fb660, 24 [pid 6085] <... prctl resumed>) = 0 [pid 6086] <... set_robust_list resumed>) = 0 [pid 6085] setpgid(0, 0 [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=41, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 41 [pid 6086] chdir("./39" [pid 6084] close(3 [pid 6086] <... chdir resumed>) = 0 [pid 6085] <... setpgid resumed>) = 0 [pid 6086] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6085] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 6086] <... prctl resumed>) = 0 [pid 5876] umount2("./39", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6086] setpgid(0, 0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6086] <... setpgid resumed>) = 0 [pid 5876] openat(AT_FDCWD, "./39", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6086] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 6085] <... symlink resumed>) = 0 [pid 5876] <... openat resumed>) = 3 [pid 6085] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5876] newfstatat(3, "", [pid 6086] <... symlink resumed>) = 0 [pid 6085] <... symlink resumed>) = 0 [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6085] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5876] getdents64(3, [pid 6086] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 6085] <... symlink resumed>) = 0 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6086] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 6085] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5877] umount2("./39", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6086] <... symlink resumed>) = 0 [pid 5876] umount2("./39/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6086] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6085] <... openat resumed>) = 3 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6085] write(3, "1000", 4 [pid 5877] openat(AT_FDCWD, "./39", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6085] <... write resumed>) = 4 [pid 6086] <... openat resumed>) = 3 [pid 6085] close(3 [pid 5877] <... openat resumed>) = 3 [pid 5876] newfstatat(AT_FDCWD, "./39/binderfs", [pid 6085] <... close resumed>) = 0 [pid 6084] <... close resumed>) = 0 [pid 5877] newfstatat(3, "", [pid 6086] write(3, "1000", 4 [pid 6085] read(200, [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6086] <... write resumed>) = 4 [pid 6085] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6084] close(4 [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5876] unlink("./39/binderfs" [pid 6085] symlink("/dev/binderfs", "./binderfs" [pid 5877] getdents64(3, 0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6086] close(3 [pid 6085] <... symlink resumed>) = 0 [pid 6084] <... close resumed>) = 0 [pid 5877] umount2("./39/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] <... unlink resumed>) = 0 [pid 6086] <... close resumed>) = 0 [pid 6085] write(1, "executing program\n", 18 [pid 6084] close(5 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) executing program [pid 6086] read(200, [pid 6085] <... write resumed>) = 18 [pid 6084] <... close resumed>) = 0 [pid 5877] newfstatat(AT_FDCWD, "./39/binderfs", [pid 5876] umount2("./39/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6085] perf_event_open( [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] newfstatat(AT_FDCWD, "./39/cgroup.net", [pid 6084] close(6 [pid 5877] unlink("./39/binderfs" [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] unlink("./39/cgroup.net" [pid 6085] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5876] <... unlink resumed>) = 0 [pid 6086] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5876] umount2("./39/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6086] symlink("/dev/binderfs", "./binderfs" [pid 6085] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6084] <... close resumed>) = 0 [pid 5877] <... unlink resumed>) = 0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6086] <... symlink resumed>) = 0 [pid 6085] <... bpf resumed>) = 4 [pid 6084] close(7 [pid 5877] umount2("./39/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] newfstatat(AT_FDCWD, "./39/cgroup.cpu", executing program [pid 6086] write(1, "executing program\n", 18 [pid 6085] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6084] <... close resumed>) = 0 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6086] <... write resumed>) = 18 [pid 6084] close(8 [pid 6086] perf_event_open( [pid 6084] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./39/cgroup.net", [pid 5876] unlink("./39/cgroup.cpu" [pid 6086] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6084] close(9 [pid 6086] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6084] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6086] <... bpf resumed>) = 4 [pid 6084] close(10 [pid 6086] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6084] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6086] <... bpf resumed>) = 5 [pid 6085] <... bpf resumed>) = 5 [pid 5876] <... unlink resumed>) = 0 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6084] close(11) = -1 EBADF (Bad file descriptor) [pid 6084] close(12 [pid 5877] unlink("./39/cgroup.net" [pid 6084] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./39/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6084] close(13 [pid 5877] <... unlink resumed>) = 0 [pid 6084] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6084] close(14 [pid 5877] umount2("./39/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6084] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(AT_FDCWD, "./39/cgroup", [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6086] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6084] close(15 [pid 5877] newfstatat(AT_FDCWD, "./39/cgroup.cpu", [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6084] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6086] <... bpf resumed>) = 6 [pid 6084] close(16 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6086] perf_event_open( [pid 6085] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6084] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./39/cgroup.cpu" [pid 5876] unlink("./39/cgroup" [pid 6086] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6084] close(17 [pid 6086] close(3 [pid 6084] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 5876] <... unlink resumed>) = 0 [pid 6086] <... close resumed>) = 0 [pid 6085] <... bpf resumed>) = 6 [pid 5876] getdents64(3, [pid 5877] umount2("./39/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6086] close(4 [pid 6084] close(18 [pid 5876] close(3 [pid 6086] <... close resumed>) = 0 [pid 6084] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6086] close(5 [pid 6084] close(19 [pid 5876] <... close resumed>) = 0 [pid 6086] <... close resumed>) = 0 [pid 6085] perf_event_open( [pid 6084] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] rmdir("./39" [pid 6086] close(6 [pid 6084] close(20 [pid 5877] newfstatat(AT_FDCWD, "./39/cgroup", [pid 6084] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6084] close(21) = -1 EBADF (Bad file descriptor) [pid 6084] close(22) = -1 EBADF (Bad file descriptor) [pid 6084] close(23) = -1 EBADF (Bad file descriptor) [pid 6084] close(24) = -1 EBADF (Bad file descriptor) [pid 6084] close(25) = -1 EBADF (Bad file descriptor) [pid 6084] close(26) = -1 EBADF (Bad file descriptor) [pid 6084] close(27) = -1 EBADF (Bad file descriptor) [pid 6084] close(28) = -1 EBADF (Bad file descriptor) [pid 6084] close(29) = -1 EBADF (Bad file descriptor) [pid 6084] exit_group(0) = ? [pid 6086] <... close resumed>) = 0 [pid 6085] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] <... rmdir resumed>) = 0 [pid 6086] close(7 [pid 6085] close(3 [pid 5877] unlink("./39/cgroup" [pid 5876] mkdir("./40", 0777 [pid 6086] <... close resumed>) = 0 [pid 5877] <... unlink resumed>) = 0 [pid 5876] <... mkdir resumed>) = 0 [pid 6086] close(8 [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6086] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] getdents64(3, [pid 6086] close(9 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6086] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] close(3 [pid 6086] close(10 [pid 5877] <... close resumed>) = 0 [pid 6086] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] rmdir("./39" [pid 6086] close(11) = -1 EBADF (Bad file descriptor) [pid 5877] <... rmdir resumed>) = 0 [pid 6086] close(12) = -1 EBADF (Bad file descriptor) [pid 6086] close(13) = -1 EBADF (Bad file descriptor) [pid 6086] close(14) = -1 EBADF (Bad file descriptor) [pid 6084] +++ exited with 0 +++ [pid 6086] close(15 [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=39, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6086] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] mkdir("./40", 0777 [pid 5874] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 6087 attached [pid 6086] close(16 [pid 6087] set_robust_list(0x5555947fb660, 24 [pid 6086] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... mkdir resumed>) = 0 [pid 6087] <... set_robust_list resumed>) = 0 [pid 6086] close(17 [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 42 [pid 6086] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6087] chdir("./40") = 0 [pid 6086] close(18 [pid 6087] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6086] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6087] <... prctl resumed>) = 0 [pid 6087] setpgid(0, 0 [pid 6086] close(19./strace-static-x86_64: Process 6088 attached [pid 6087] <... setpgid resumed>) = 0 [pid 6086] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6088] set_robust_list(0x5555947fb660, 24 [pid 6086] close(20 [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 42 [pid 6088] <... set_robust_list resumed>) = 0 [pid 6088] chdir("./40" [pid 6087] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 6086] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6088] <... chdir resumed>) = 0 [pid 6086] close(21 [pid 6088] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6086] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6088] <... prctl resumed>) = 0 [pid 6088] setpgid(0, 0 [pid 6086] close(22 [pid 6088] <... setpgid resumed>) = 0 [pid 6088] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 6087] <... symlink resumed>) = 0 [pid 6086] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... restart_syscall resumed>) = 0 [pid 6087] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 6086] close(23 [pid 6088] <... symlink resumed>) = 0 [pid 6087] <... symlink resumed>) = 0 [pid 6088] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu") = 0 [pid 6087] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 6088] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 6087] <... symlink resumed>) = 0 [pid 6086] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6088] <... symlink resumed>) = 0 [pid 6087] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6086] close(24 [pid 5874] umount2("./37", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6088] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6086] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6086] close(25) = -1 EBADF (Bad file descriptor) [pid 6087] <... openat resumed>) = 3 [pid 6086] close(26 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6086] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6086] close(27) = -1 EBADF (Bad file descriptor) [pid 6086] close(28 [pid 6087] write(3, "1000", 4 [pid 6086] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6086] close(29) = -1 EBADF (Bad file descriptor) [pid 6088] <... openat resumed>) = 3 [pid 6087] <... write resumed>) = 4 [pid 6086] exit_group(0 [pid 5874] openat(AT_FDCWD, "./37", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6088] write(3, "1000", 4 [pid 6087] close(3 [pid 6086] <... exit_group resumed>) = ? [pid 5874] <... openat resumed>) = 3 [pid 6088] <... write resumed>) = 4 [pid 6087] <... close resumed>) = 0 [pid 5874] newfstatat(3, "", [pid 6087] read(200, [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6088] close(3 [pid 6087] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6088] <... close resumed>) = 0 [pid 6087] symlink("/dev/binderfs", "./binderfs" [pid 5874] getdents64(3, [pid 6088] read(200, [pid 6087] <... symlink resumed>) = 0 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6088] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6087] write(1, "executing program\n", 18 [pid 6086] +++ exited with 0 +++ executing program [pid 5874] umount2("./37/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6088] symlink("/dev/binderfs", "./binderfs" [pid 6087] <... write resumed>) = 18 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=41, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6088] <... symlink resumed>) = 0 [pid 6087] perf_event_open( [pid 5874] newfstatat(AT_FDCWD, "./37/binderfs", [pid 5873] restart_syscall(<... resuming interrupted clone ...> [pid 6088] write(1, "executing program\n", 18executing program [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... restart_syscall resumed>) = 0 [pid 6088] <... write resumed>) = 18 [pid 5874] unlink("./37/binderfs" [pid 6088] perf_event_open( [pid 5874] <... unlink resumed>) = 0 [pid 5874] umount2("./37/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] umount2("./39", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] newfstatat(AT_FDCWD, "./37/cgroup.net", [pid 5873] openat(AT_FDCWD, "./39", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... openat resumed>) = 3 [pid 5873] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5873] getdents64(3, 0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5874] unlink("./37/cgroup.net" [pid 5873] umount2("./39/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... unlink resumed>) = 0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6085] <... close resumed>) = 0 [pid 5874] umount2("./37/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6087] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5874] newfstatat(AT_FDCWD, "./37/cgroup.cpu", [pid 6085] close(4 [pid 5873] newfstatat(AT_FDCWD, "./39/binderfs", [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6085] <... close resumed>) = 0 [pid 6087] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5874] unlink("./37/cgroup.cpu" [pid 6087] <... bpf resumed>) = 4 [pid 6085] close(5 [pid 5874] <... unlink resumed>) = 0 [pid 5873] unlink("./39/binderfs" [pid 6087] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6088] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6085] <... close resumed>) = 0 [pid 5874] umount2("./37/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... unlink resumed>) = 0 [pid 6088] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6085] close(6 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] umount2("./39/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6087] <... bpf resumed>) = 5 [pid 5874] newfstatat(AT_FDCWD, "./37/cgroup", [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6087] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5874] unlink("./37/cgroup" [pid 5873] newfstatat(AT_FDCWD, "./39/cgroup.net", [pid 6085] <... close resumed>) = 0 [pid 5874] <... unlink resumed>) = 0 [pid 5874] getdents64(3, [pid 6088] <... bpf resumed>) = 4 [pid 6087] <... bpf resumed>) = 6 [pid 6085] close(7 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6088] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6087] perf_event_open( [pid 6085] <... close resumed>) = 0 [pid 5874] close(3 [pid 5873] unlink("./39/cgroup.net" [pid 6087] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6085] close(8 [pid 6087] close(3 [pid 6085] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... unlink resumed>) = 0 [pid 6085] close(9 [pid 5874] <... close resumed>) = 0 [pid 6088] <... bpf resumed>) = 5 [pid 6087] <... close resumed>) = 0 [pid 6085] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] rmdir("./37" [pid 5873] umount2("./39/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6088] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6087] close(4 [pid 6085] close(10 [pid 6087] <... close resumed>) = 0 [pid 5874] <... rmdir resumed>) = 0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6088] <... bpf resumed>) = 6 [pid 6087] close(5) = 0 [pid 6085] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6087] close(6 [pid 6085] close(11 [pid 5874] mkdir("./38", 0777 [pid 5873] newfstatat(AT_FDCWD, "./39/cgroup.cpu", [pid 6088] perf_event_open( [pid 6085] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6085] close(12 [pid 6088] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6087] <... close resumed>) = 0 [pid 6087] close(7 [pid 6085] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6087] <... close resumed>) = 0 [pid 5874] <... mkdir resumed>) = 0 [pid 5873] unlink("./39/cgroup.cpu" [pid 6085] close(13 [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6087] close(8) = -1 EBADF (Bad file descriptor) [pid 6085] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... unlink resumed>) = 0 [pid 6087] close(9 [pid 6085] close(14 [pid 6087] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] umount2("./39/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6087] close(10 [pid 6085] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6087] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6087] close(11) = -1 EBADF (Bad file descriptor) [pid 6087] close(12) = -1 EBADF (Bad file descriptor) [pid 6087] close(13) = -1 EBADF (Bad file descriptor) [pid 6087] close(14) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 6089 attached [pid 6089] set_robust_list(0x5555947fb660, 24 [pid 6088] close(3 [pid 6087] close(15 [pid 6089] <... set_robust_list resumed>) = 0 [pid 6087] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6089] chdir("./38" [pid 6087] close(16) = -1 EBADF (Bad file descriptor) [pid 6087] close(17 [pid 6089] <... chdir resumed>) = 0 [pid 6087] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6089] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6087] close(18 [pid 6089] <... prctl resumed>) = 0 [pid 6087] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6089] setpgid(0, 0 [pid 6087] close(19 [pid 6089] <... setpgid resumed>) = 0 [pid 6087] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6089] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 6087] close(20 [pid 6085] close(15 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6087] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6087] close(21) = -1 EBADF (Bad file descriptor) [pid 6089] <... symlink resumed>) = 0 [pid 6087] close(22 [pid 6085] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 40 [pid 5873] newfstatat(AT_FDCWD, "./39/cgroup", [pid 6089] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 6087] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6085] close(16 [pid 6087] close(23 [pid 6085] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6087] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6085] close(17 [pid 6089] <... symlink resumed>) = 0 [pid 6087] close(24 [pid 6085] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] unlink("./39/cgroup" [pid 6089] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 6087] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6085] close(18 [pid 5873] <... unlink resumed>) = 0 [pid 6087] close(25) = -1 EBADF (Bad file descriptor) [pid 6085] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] getdents64(3, [pid 6087] close(26 [pid 6085] close(19 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6087] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6085] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] close(3 [pid 6087] close(27 [pid 6085] close(20 [pid 5873] <... close resumed>) = 0 [pid 6087] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6087] close(28 [pid 6085] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] rmdir("./39" [pid 6087] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6085] close(21 [pid 5873] <... rmdir resumed>) = 0 [pid 6087] close(29 [pid 6085] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] mkdir("./40", 0777 [pid 6087] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6085] close(22 [pid 5873] <... mkdir resumed>) = 0 [pid 6089] <... symlink resumed>) = 0 [pid 6087] exit_group(0 [pid 6085] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6089] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6088] <... close resumed>) = 0 [pid 6087] <... exit_group resumed>) = ? [pid 6085] close(23 [pid 6089] <... openat resumed>) = 3 [pid 6088] close(4 [pid 6085] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 6090 attached [pid 6089] write(3, "1000", 4 [pid 6088] <... close resumed>) = 0 [pid 6085] close(24 [pid 6090] set_robust_list(0x5555947fb660, 24) = 0 [pid 6085] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 42 [pid 6090] chdir("./40" [pid 6089] <... write resumed>) = 4 [pid 6088] close(5 [pid 6085] close(25 [pid 6090] <... chdir resumed>) = 0 [pid 6089] close(3 [pid 6087] +++ exited with 0 +++ [pid 6085] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6090] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6085] close(26 [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=42, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6090] <... prctl resumed>) = 0 [pid 6089] <... close resumed>) = 0 [pid 6088] <... close resumed>) = 0 [pid 6085] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6089] read(200, [pid 6085] close(27) = -1 EBADF (Bad file descriptor) [pid 6089] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6088] close(6 [pid 6085] close(28 [pid 5876] umount2("./40", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6085] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6085] close(29) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6085] exit_group(0 [pid 6088] <... close resumed>) = 0 [pid 5876] openat(AT_FDCWD, "./40", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6089] symlink("/dev/binderfs", "./binderfs" [pid 6090] setpgid(0, 0 [pid 6089] <... symlink resumed>) = 0 [pid 6090] <... setpgid resumed>) = 0 [pid 6088] close(7 [pid 6085] <... exit_group resumed>) = ? [pid 5876] <... openat resumed>) = 3 [pid 6090] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 6089] write(1, "executing program\n", 18 [pid 5876] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5876] getdents64(3, 0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6088] <... close resumed>) = 0 [pid 5876] umount2("./40/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5876] newfstatat(AT_FDCWD, "./40/binderfs", executing program {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6090] <... symlink resumed>) = 0 [pid 6089] <... write resumed>) = 18 [pid 6088] close(8 [pid 6085] +++ exited with 0 +++ [pid 5876] unlink("./40/binderfs" [pid 6090] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 6089] perf_event_open( [pid 6088] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=41, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6090] <... symlink resumed>) = 0 [pid 6088] close(9 [pid 5876] umount2("./40/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6090] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 6088] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] newfstatat(AT_FDCWD, "./40/cgroup.net", [pid 5875] umount2("./39", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6090] <... symlink resumed>) = 0 [pid 6089] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6088] close(10 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6090] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6089] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5876] unlink("./40/cgroup.net" [pid 5875] openat(AT_FDCWD, "./39", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6090] <... openat resumed>) = 3 [pid 6089] <... bpf resumed>) = 4 [pid 6088] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 5875] <... openat resumed>) = 3 [pid 6090] write(3, "1000", 4 [pid 6089] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6088] close(11 [pid 5876] umount2("./40/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] newfstatat(3, "", [pid 6090] <... write resumed>) = 4 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6090] close(3 [pid 5876] newfstatat(AT_FDCWD, "./40/cgroup.cpu", [pid 5875] getdents64(3, [pid 6090] <... close resumed>) = 0 [pid 6089] <... bpf resumed>) = 5 [pid 6088] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6090] read(200, [pid 5876] unlink("./40/cgroup.cpu" [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6090] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6090] symlink("/dev/binderfs", "./binderfs" [pid 5876] <... unlink resumed>) = 0 [pid 6090] <... symlink resumed>) = 0 [pid 5875] umount2("./39/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6090] write(1, "executing program\n", 18 [pid 5876] umount2("./40/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) executing program [pid 6090] <... write resumed>) = 18 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] newfstatat(AT_FDCWD, "./39/binderfs", [pid 6090] perf_event_open( [pid 5876] newfstatat(AT_FDCWD, "./40/cgroup", [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6090] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] unlink("./39/binderfs" [pid 6090] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6089] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6088] close(12 [pid 5876] unlink("./40/cgroup" [pid 6090] <... bpf resumed>) = 4 [pid 6089] <... bpf resumed>) = 6 [pid 6088] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 5875] <... unlink resumed>) = 0 [pid 6090] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6089] perf_event_open( [pid 6088] close(13 [pid 5876] getdents64(3, [pid 6088] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./39/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6088] close(14) = -1 EBADF (Bad file descriptor) [pid 6088] close(15) = -1 EBADF (Bad file descriptor) [pid 6088] close(16 [pid 6089] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6088] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] newfstatat(AT_FDCWD, "./39/cgroup.net", [pid 6088] close(17 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6089] close(3 [pid 6088] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] close(3 [pid 5875] unlink("./39/cgroup.net" [pid 6088] close(18 [pid 5876] <... close resumed>) = 0 [pid 5875] <... unlink resumed>) = 0 [pid 6089] <... close resumed>) = 0 [pid 6088] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] rmdir("./40" [pid 5875] umount2("./39/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6090] <... bpf resumed>) = 5 [pid 6089] close(4 [pid 6088] close(19 [pid 5876] <... rmdir resumed>) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6090] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6088] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] mkdir("./41", 0777 [pid 5875] newfstatat(AT_FDCWD, "./39/cgroup.cpu", [pid 6090] <... bpf resumed>) = 6 [pid 6089] <... close resumed>) = 0 [pid 6088] close(20 [pid 5876] <... mkdir resumed>) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6088] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6089] close(5 [pid 6090] perf_event_open( [pid 6088] close(21 [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5875] unlink("./39/cgroup.cpu" [pid 6089] <... close resumed>) = 0 [pid 6088] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6089] close(6 [pid 6088] close(22) = -1 EBADF (Bad file descriptor) [pid 6089] <... close resumed>) = 0 [pid 6088] close(23 [pid 5875] <... unlink resumed>) = 0 [pid 6090] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6088] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./39/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6089] close(7 [pid 6088] close(24 [pid 6090] close(3 [pid 6089] <... close resumed>) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 6091 attached [pid 6089] close(8 [pid 6088] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6091] set_robust_list(0x5555947fb660, 24 [pid 6089] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6088] close(25 [pid 6091] <... set_robust_list resumed>) = 0 [pid 6089] close(9 [pid 6088] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6091] chdir("./41" [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 43 [pid 5875] newfstatat(AT_FDCWD, "./39/cgroup", [pid 6089] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6088] close(26 [pid 6091] <... chdir resumed>) = 0 [pid 6089] close(10 [pid 6088] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6091] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6089] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6088] close(27 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6089] close(11 [pid 6088] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] unlink("./39/cgroup" [pid 6091] <... prctl resumed>) = 0 [pid 6089] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6088] close(28 [pid 6091] setpgid(0, 0 [pid 6089] close(12 [pid 5875] <... unlink resumed>) = 0 [pid 6091] <... setpgid resumed>) = 0 [pid 6089] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6088] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] getdents64(3, [pid 6091] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 6089] close(13 [pid 6088] close(29 [pid 6089] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6088] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6089] close(14 [pid 6088] exit_group(0 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6091] <... symlink resumed>) = 0 [pid 6089] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6088] <... exit_group resumed>) = ? [pid 5875] close(3 [pid 6089] close(15 [pid 5875] <... close resumed>) = 0 [pid 6091] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5875] rmdir("./39" [pid 6091] <... symlink resumed>) = 0 [pid 5875] <... rmdir resumed>) = 0 [pid 6089] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] mkdir("./40", 0777 [pid 6089] close(16 [pid 5875] <... mkdir resumed>) = 0 [pid 6089] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6091] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 6089] close(17) = -1 EBADF (Bad file descriptor) [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6091] <... symlink resumed>) = 0 [pid 6089] close(18 [pid 6091] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6089] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6091] <... openat resumed>) = 3 [pid 6089] close(19 [pid 6091] write(3, "1000", 4 [pid 6089] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6088] +++ exited with 0 +++ [pid 6089] close(20) = -1 EBADF (Bad file descriptor) [pid 6089] close(21) = -1 EBADF (Bad file descriptor) [pid 6091] <... write resumed>) = 4 [pid 6089] close(22 [pid 6091] close(3 [pid 6089] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6089] close(23 [pid 6091] <... close resumed>) = 0 [pid 6089] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6091] read(200, [pid 6089] close(24 [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=42, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 6091] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6089] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6091] symlink("/dev/binderfs", "./binderfs" [pid 6089] close(25 [pid 5877] umount2("./40", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6091] <... symlink resumed>) = 0 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 6092 attached [pid 6091] write(1, "executing program\n", 18 [pid 6090] <... close resumed>) = 0 [pid 6089] <... close resumed>) = -1 EBADF (Bad file descriptor) executing program [pid 5877] openat(AT_FDCWD, "./40", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6092] set_robust_list(0x5555947fb660, 24 [pid 6090] close(4 [pid 6089] close(26 [pid 6092] <... set_robust_list resumed>) = 0 [pid 6091] <... write resumed>) = 18 [pid 6090] <... close resumed>) = 0 [pid 6089] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... openat resumed>) = 3 [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 42 [pid 6092] chdir("./40" [pid 6091] perf_event_open( [pid 6090] close(5 [pid 6089] close(27 [pid 5877] newfstatat(3, "", [pid 6092] <... chdir resumed>) = 0 [pid 6091] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6090] <... close resumed>) = 0 [pid 6089] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6092] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6090] close(6 [pid 6089] close(28 [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6092] <... prctl resumed>) = 0 [pid 6091] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6089] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] getdents64(3, [pid 6092] setpgid(0, 0 [pid 6091] <... bpf resumed>) = 4 [pid 6090] <... close resumed>) = 0 [pid 6089] close(29 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6092] <... setpgid resumed>) = 0 [pid 6091] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6090] close(7 [pid 6089] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6092] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 6091] <... bpf resumed>) = 5 [pid 5877] umount2("./40/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5877] newfstatat(AT_FDCWD, "./40/binderfs", [pid 6090] <... close resumed>) = 0 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5877] unlink("./40/binderfs") = 0 [pid 5877] umount2("./40/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6089] exit_group(0 [pid 5877] newfstatat(AT_FDCWD, "./40/cgroup.net", [pid 6092] <... symlink resumed>) = 0 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6092] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 6089] <... exit_group resumed>) = ? [pid 5877] unlink("./40/cgroup.net" [pid 6092] <... symlink resumed>) = 0 [pid 6091] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6090] close(8 [pid 5877] <... unlink resumed>) = 0 [pid 5877] umount2("./40/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6092] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6090] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6090] close(9) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./40/cgroup.cpu", [pid 6090] close(10) = -1 EBADF (Bad file descriptor) [pid 6090] close(11) = -1 EBADF (Bad file descriptor) [pid 6090] close(12) = -1 EBADF (Bad file descriptor) [pid 6090] close(13) = -1 EBADF (Bad file descriptor) [pid 6090] close(14) = -1 EBADF (Bad file descriptor) [pid 6090] close(15) = -1 EBADF (Bad file descriptor) [pid 6090] close(16) = -1 EBADF (Bad file descriptor) [pid 6090] close(17) = -1 EBADF (Bad file descriptor) [pid 6090] close(18) = -1 EBADF (Bad file descriptor) [pid 6090] close(19) = -1 EBADF (Bad file descriptor) [pid 6090] close(20) = -1 EBADF (Bad file descriptor) [pid 6090] close(21) = -1 EBADF (Bad file descriptor) [pid 6090] close(22) = -1 EBADF (Bad file descriptor) [pid 6090] close(23) = -1 EBADF (Bad file descriptor) [pid 6090] close(24) = -1 EBADF (Bad file descriptor) [pid 6090] close(25) = -1 EBADF (Bad file descriptor) [pid 6090] close(26) = -1 EBADF (Bad file descriptor) [pid 6090] close(27) = -1 EBADF (Bad file descriptor) [pid 6090] close(28) = -1 EBADF (Bad file descriptor) [pid 6090] close(29) = -1 EBADF (Bad file descriptor) [pid 6090] exit_group(0) = ? [pid 6090] +++ exited with 0 +++ [pid 6089] +++ exited with 0 +++ [pid 6092] <... symlink resumed>) = 0 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6092] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5877] unlink("./40/cgroup.cpu" [pid 6092] write(3, "1000", 4 [pid 6091] <... bpf resumed>) = 6 [pid 6092] <... write resumed>) = 4 [pid 5877] <... unlink resumed>) = 0 [pid 6092] close(3 [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=42, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5877] umount2("./40/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6092] <... close resumed>) = 0 [pid 6092] read(200, [pid 6091] perf_event_open( [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6092] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5877] newfstatat(AT_FDCWD, "./40/cgroup", [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=40, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5873] umount2("./40", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6092] symlink("/dev/binderfs", "./binderfs" [pid 6091] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] restart_syscall(<... resuming interrupted clone ...> [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6092] <... symlink resumed>) = 0 [pid 6091] close(3 [pid 5877] unlink("./40/cgroup" [pid 5873] openat(AT_FDCWD, "./40", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORYexecuting program [pid 6092] write(1, "executing program\n", 18 [pid 5877] <... unlink resumed>) = 0 [pid 5873] <... openat resumed>) = 3 [pid 6092] <... write resumed>) = 18 [pid 5877] getdents64(3, [pid 5874] <... restart_syscall resumed>) = 0 [pid 5873] newfstatat(3, "", [pid 6092] perf_event_open( [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5877] close(3 [pid 5873] getdents64(3, [pid 6092] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6091] <... close resumed>) = 0 [pid 6092] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6091] close(4 [pid 5877] <... close resumed>) = 0 [pid 6092] <... bpf resumed>) = 4 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6092] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6091] <... close resumed>) = 0 [pid 5877] rmdir("./40" [pid 5874] umount2("./38", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] umount2("./40/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6091] close(5 [pid 5877] <... rmdir resumed>) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6091] <... close resumed>) = 0 [pid 5877] mkdir("./41", 0777 [pid 5874] openat(AT_FDCWD, "./38", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5873] newfstatat(AT_FDCWD, "./40/binderfs", [pid 6091] close(6 [pid 5877] <... mkdir resumed>) = 0 [pid 5874] <... openat resumed>) = 3 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5874] newfstatat(3, "", [pid 5873] unlink("./40/binderfs"./strace-static-x86_64: Process 6093 attached [pid 6092] <... bpf resumed>) = 5 [pid 6091] <... close resumed>) = 0 [pid 6091] close(7 [pid 6092] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5873] <... unlink resumed>) = 0 [pid 6093] set_robust_list(0x5555947fb660, 24) = 0 [pid 6092] <... bpf resumed>) = 6 [pid 6091] <... close resumed>) = 0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6092] perf_event_open( [pid 6091] close(8 [pid 5874] getdents64(3, [pid 5873] umount2("./40/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6093] chdir("./41" [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6093] <... chdir resumed>) = 0 [pid 6092] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6091] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./38/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] newfstatat(AT_FDCWD, "./40/cgroup.net", [pid 6093] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6092] close(3 [pid 6091] close(9 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6093] <... prctl resumed>) = 0 [pid 6091] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 43 [pid 5874] newfstatat(AT_FDCWD, "./38/binderfs", [pid 5873] unlink("./40/cgroup.net" [pid 6093] setpgid(0, 0 [pid 6091] close(10 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... unlink resumed>) = 0 [pid 5874] unlink("./38/binderfs" [pid 5873] umount2("./40/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... unlink resumed>) = 0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] umount2("./38/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] newfstatat(AT_FDCWD, "./40/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] unlink("./40/cgroup.cpu" [pid 5874] newfstatat(AT_FDCWD, "./38/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] unlink("./38/cgroup.net" [pid 5873] <... unlink resumed>) = 0 [pid 5874] <... unlink resumed>) = 0 [pid 5873] umount2("./40/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] umount2("./38/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] newfstatat(AT_FDCWD, "./40/cgroup", [pid 6093] <... setpgid resumed>) = 0 [pid 6091] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] newfstatat(AT_FDCWD, "./38/cgroup.cpu", [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] unlink("./40/cgroup") = 0 [pid 5874] unlink("./38/cgroup.cpu" [pid 5873] getdents64(3, [pid 5874] <... unlink resumed>) = 0 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5874] umount2("./38/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] close(3 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... close resumed>) = 0 [pid 5874] newfstatat(AT_FDCWD, "./38/cgroup", [pid 6093] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 6092] <... close resumed>) = 0 [pid 6091] close(11 [pid 5873] rmdir("./40" [pid 6093] <... symlink resumed>) = 0 [pid 6092] close(4 [pid 6091] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6093] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 6092] <... close resumed>) = 0 [pid 6091] close(12 [pid 5873] <... rmdir resumed>) = 0 [pid 6093] <... symlink resumed>) = 0 [pid 6092] close(5 [pid 6091] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] unlink("./38/cgroup" [pid 6093] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 6092] <... close resumed>) = 0 [pid 6091] close(13 [pid 5874] <... unlink resumed>) = 0 [pid 5873] mkdir("./41", 0777 [pid 6091] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6092] close(6 [pid 6093] <... symlink resumed>) = 0 [pid 6091] close(14 [pid 5874] getdents64(3, [pid 5873] <... mkdir resumed>) = 0 [pid 6091] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6093] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6092] <... close resumed>) = 0 [pid 6091] close(15 [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6094 attached [pid 6093] <... openat resumed>) = 3 [pid 6092] close(7 [pid 6091] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] close(3 [pid 6092] <... close resumed>) = 0 [pid 6091] close(16 [pid 6094] set_robust_list(0x5555947fb660, 24 [pid 6093] write(3, "1000", 4 [pid 6092] close(8 [pid 6091] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6094] <... set_robust_list resumed>) = 0 [pid 6093] <... write resumed>) = 4 [pid 6092] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6091] close(17 [pid 6094] chdir("./41" [pid 6093] close(3 [pid 6092] close(9 [pid 6091] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... close resumed>) = 0 [pid 6094] <... chdir resumed>) = 0 [pid 6093] <... close resumed>) = 0 [pid 6092] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6091] close(18 [pid 5874] rmdir("./38" [pid 6094] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6093] read(200, [pid 6092] close(10 [pid 6091] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... rmdir resumed>) = 0 [pid 6094] <... prctl resumed>) = 0 [pid 6093] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6092] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6091] close(19 [pid 6092] close(11 [pid 6094] setpgid(0, 0 [pid 6093] symlink("/dev/binderfs", "./binderfs" [pid 6091] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] mkdir("./39", 0777 [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 43 [pid 6091] close(20) = -1 EBADF (Bad file descriptor) [pid 6091] close(21 [pid 5874] <... mkdir resumed>) = 0 [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program [pid 6091] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6091] close(22) = -1 EBADF (Bad file descriptor) [pid 6091] close(23) = -1 EBADF (Bad file descriptor) [pid 6091] close(24) = -1 EBADF (Bad file descriptor) [pid 6091] close(25) = -1 EBADF (Bad file descriptor) [pid 6091] close(26) = -1 EBADF (Bad file descriptor) [pid 6091] close(27 [pid 6093] <... symlink resumed>) = 0 [pid 6092] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6091] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6092] close(12 [pid 6091] close(28./strace-static-x86_64: Process 6095 attached ) = -1 EBADF (Bad file descriptor) [pid 6095] set_robust_list(0x5555947fb660, 24 [pid 6091] close(29 [pid 6095] <... set_robust_list resumed>) = 0 [pid 6091] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6095] chdir("./39" [pid 6091] exit_group(0 [pid 6092] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6091] <... exit_group resumed>) = ? [pid 6093] write(1, "executing program\n", 18 [pid 6092] close(13 [pid 6091] +++ exited with 0 +++ [pid 6095] <... chdir resumed>) = 0 [pid 6093] <... write resumed>) = 18 [pid 6092] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6095] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6093] perf_event_open( [pid 6092] close(14 [pid 6095] <... prctl resumed>) = 0 [pid 6092] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6092] close(15 [pid 6095] setpgid(0, 0) = 0 [pid 6092] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6095] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 6094] <... setpgid resumed>) = 0 [pid 6092] close(16 [pid 6094] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 6092] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=43, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 41 [pid 6095] <... symlink resumed>) = 0 [pid 6094] <... symlink resumed>) = 0 [pid 6092] close(17 [pid 6095] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 6094] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 6093] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6092] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] restart_syscall(<... resuming interrupted clone ...> [pid 6095] <... symlink resumed>) = 0 [pid 6093] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6092] close(18 [pid 6095] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 6094] <... symlink resumed>) = 0 [pid 5876] <... restart_syscall resumed>) = 0 [pid 6092] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6092] close(19) = -1 EBADF (Bad file descriptor) [pid 6092] close(20 [pid 6093] <... bpf resumed>) = 4 [pid 6092] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6092] close(21) = -1 EBADF (Bad file descriptor) [pid 6092] close(22 [pid 5876] umount2("./41", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6094] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 6092] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6092] close(23 [pid 6095] <... symlink resumed>) = 0 [pid 6094] <... symlink resumed>) = 0 [pid 6093] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6092] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6094] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6092] close(24 [pid 5876] openat(AT_FDCWD, "./41", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6094] <... openat resumed>) = 3 [pid 6093] <... bpf resumed>) = 5 [pid 5876] <... openat resumed>) = 3 [pid 6094] write(3, "1000", 4 [pid 5876] newfstatat(3, "", [pid 6094] <... write resumed>) = 4 [pid 6094] close(3 [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6094] <... close resumed>) = 0 [pid 5876] getdents64(3, [pid 6094] read(200, [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6094] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6095] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6094] symlink("/dev/binderfs", "./binderfs" [pid 6092] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./41/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6095] <... openat resumed>) = 3 [pid 6092] close(25 [pid 6095] write(3, "1000", 4 [pid 6092] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6095] <... write resumed>) = 4 [pid 6093] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6092] close(26 [pid 6095] close(3 [pid 6093] <... bpf resumed>) = 6 [pid 6092] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6095] <... close resumed>) = 0 [pid 6093] perf_event_open( [pid 6092] close(27 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6095] read(200, [pid 6094] <... symlink resumed>) = 0 [pid 6092] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6094] write(1, "executing program\n", 18executing program ) = 18 [pid 6092] close(28) = -1 EBADF (Bad file descriptor) [pid 6094] perf_event_open( [pid 6092] close(29) = -1 EBADF (Bad file descriptor) [pid 6092] exit_group(0) = ? [pid 5876] newfstatat(AT_FDCWD, "./41/binderfs", [pid 6094] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6095] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6095] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 6093] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6095] write(1, "executing program\n", 18) = 18 [pid 6095] perf_event_open( [pid 6093] close(3 [pid 6095] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6094] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6093] <... close resumed>) = 0 [pid 5876] unlink("./41/binderfs" [pid 6095] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6094] <... bpf resumed>) = 4 [pid 5876] <... unlink resumed>) = 0 [pid 6095] <... bpf resumed>) = 4 [pid 6094] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6093] close(4 [pid 6092] +++ exited with 0 +++ [pid 5876] umount2("./41/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6093] <... close resumed>) = 0 [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=42, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] newfstatat(AT_FDCWD, "./41/cgroup.net", [pid 6095] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6093] close(5 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6095] <... bpf resumed>) = 5 [pid 6094] <... bpf resumed>) = 5 [pid 5876] unlink("./41/cgroup.net" [pid 6094] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6093] <... close resumed>) = 0 [pid 5876] <... unlink resumed>) = 0 [pid 5875] umount2("./40", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6095] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6093] close(6 [pid 6095] <... bpf resumed>) = 6 [pid 6094] <... bpf resumed>) = 6 [pid 5876] umount2("./41/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] openat(AT_FDCWD, "./40", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5876] newfstatat(AT_FDCWD, "./41/cgroup.cpu", [pid 6094] perf_event_open( [pid 6093] <... close resumed>) = 0 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] <... openat resumed>) = 3 [pid 6093] close(7 [pid 5876] unlink("./41/cgroup.cpu" [pid 6095] perf_event_open( [pid 6093] <... close resumed>) = 0 [pid 5875] newfstatat(3, "", [pid 6095] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6094] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6093] close(8 [pid 5876] <... unlink resumed>) = 0 [pid 6095] close(3 [pid 6093] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5876] umount2("./41/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6095] <... close resumed>) = 0 [pid 6094] close(3 [pid 6093] close(9 [pid 5875] getdents64(3, [pid 6095] close(4 [pid 6093] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6095] <... close resumed>) = 0 [pid 6093] close(10) = -1 EBADF (Bad file descriptor) [pid 6095] close(5 [pid 6093] close(11 [pid 6095] <... close resumed>) = 0 [pid 6093] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6095] close(6 [pid 6093] close(12) = -1 EBADF (Bad file descriptor) [pid 6093] close(13) = -1 EBADF (Bad file descriptor) [pid 6093] close(14) = -1 EBADF (Bad file descriptor) [pid 6093] close(15) = -1 EBADF (Bad file descriptor) [pid 6093] close(16) = -1 EBADF (Bad file descriptor) [pid 6093] close(17) = -1 EBADF (Bad file descriptor) [pid 6093] close(18) = -1 EBADF (Bad file descriptor) [pid 6093] close(19) = -1 EBADF (Bad file descriptor) [pid 6093] close(20) = -1 EBADF (Bad file descriptor) [pid 6093] close(21) = -1 EBADF (Bad file descriptor) [pid 6093] close(22) = -1 EBADF (Bad file descriptor) [pid 6093] close(23) = -1 EBADF (Bad file descriptor) [pid 6093] close(24 [pid 6095] <... close resumed>) = 0 [pid 6093] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(AT_FDCWD, "./41/cgroup", [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6093] close(25 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] umount2("./40/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] unlink("./41/cgroup" [pid 6095] close(7 [pid 6093] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6095] <... close resumed>) = 0 [pid 6093] close(26 [pid 5876] <... unlink resumed>) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6093] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] getdents64(3, [pid 5875] newfstatat(AT_FDCWD, "./40/binderfs", [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6095] close(8 [pid 6093] close(27 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6095] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6093] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] close(3 [pid 6095] close(9 [pid 6093] close(28 [pid 5875] unlink("./40/binderfs" [pid 6095] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6093] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6095] close(10 [pid 6093] close(29 [pid 6095] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6093] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6095] close(11 [pid 6093] exit_group(0 [pid 5876] <... close resumed>) = 0 [pid 5875] <... unlink resumed>) = 0 [pid 6095] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] rmdir("./41" [pid 6095] close(12 [pid 6093] <... exit_group resumed>) = ? [pid 5875] umount2("./40/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6095] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... rmdir resumed>) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6095] close(13) = -1 EBADF (Bad file descriptor) [pid 5876] mkdir("./42", 0777 [pid 5875] newfstatat(AT_FDCWD, "./40/cgroup.net", [pid 6095] close(14 [pid 6093] +++ exited with 0 +++ [pid 5876] <... mkdir resumed>) = 0 [pid 6095] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6095] close(15) = -1 EBADF (Bad file descriptor) [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=43, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6095] close(16 [pid 5877] restart_syscall(<... resuming interrupted clone ...> [pid 6095] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6095] close(17 [pid 5875] unlink("./40/cgroup.net" [pid 6095] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6095] close(18) = -1 EBADF (Bad file descriptor) [pid 6095] close(19) = -1 EBADF (Bad file descriptor) [pid 6095] close(20) = -1 EBADF (Bad file descriptor) [pid 6095] close(21) = -1 EBADF (Bad file descriptor) [pid 6095] close(22) = -1 EBADF (Bad file descriptor) [pid 6095] close(23) = -1 EBADF (Bad file descriptor) [pid 6095] close(24) = -1 EBADF (Bad file descriptor) [pid 6095] close(25) = -1 EBADF (Bad file descriptor) [pid 6095] close(26) = -1 EBADF (Bad file descriptor) [pid 6095] close(27) = -1 EBADF (Bad file descriptor) [pid 6095] close(28) = -1 EBADF (Bad file descriptor) [pid 6095] close(29) = -1 EBADF (Bad file descriptor) [pid 6095] exit_group(0) = ? ./strace-static-x86_64: Process 6096 attached [pid 6095] +++ exited with 0 +++ [pid 6094] <... close resumed>) = 0 [pid 5877] <... restart_syscall resumed>) = 0 [pid 5875] <... unlink resumed>) = 0 [pid 6094] close(4 [pid 6096] set_robust_list(0x5555947fb660, 24 [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 44 [pid 5875] umount2("./40/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=41, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] newfstatat(AT_FDCWD, "./40/cgroup.cpu", [pid 6096] <... set_robust_list resumed>) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] umount2("./39", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6096] chdir("./42" [pid 6094] <... close resumed>) = 0 [pid 5875] unlink("./40/cgroup.cpu" [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6094] close(5 [pid 5877] umount2("./41", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... unlink resumed>) = 0 [pid 5874] openat(AT_FDCWD, "./39", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6096] <... chdir resumed>) = 0 [pid 5875] umount2("./40/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... openat resumed>) = 3 [pid 6096] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] newfstatat(3, "", [pid 6096] setpgid(0, 0) = 0 [pid 6096] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 6094] <... close resumed>) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6094] close(6 [pid 5877] openat(AT_FDCWD, "./41", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5875] newfstatat(AT_FDCWD, "./40/cgroup", [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6096] <... symlink resumed>) = 0 [pid 5877] <... openat resumed>) = 3 [pid 6096] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu") = 0 [pid 5877] newfstatat(3, "", [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] getdents64(3, [pid 6096] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 6094] <... close resumed>) = 0 [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5875] unlink("./40/cgroup" [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6094] close(7 [pid 6096] <... symlink resumed>) = 0 [pid 5877] getdents64(3, [pid 5875] <... unlink resumed>) = 0 [pid 5874] umount2("./39/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5875] getdents64(3, [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] umount2("./41/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5874] newfstatat(AT_FDCWD, "./39/binderfs", [pid 6096] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6094] <... close resumed>) = 0 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] close(3 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6096] <... openat resumed>) = 3 [pid 6094] close(8 [pid 5877] newfstatat(AT_FDCWD, "./41/binderfs", [pid 5875] <... close resumed>) = 0 [pid 6096] write(3, "1000", 4) = 4 [pid 6096] close(3) = 0 [pid 5875] rmdir("./40" [pid 6096] read(200, [pid 5874] unlink("./39/binderfs" [pid 6096] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6094] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6096] symlink("/dev/binderfs", "./binderfs" [pid 6094] close(9 [pid 5877] unlink("./41/binderfs" [pid 6096] <... symlink resumed>) = 0 executing program [pid 5875] <... rmdir resumed>) = 0 [pid 5874] <... unlink resumed>) = 0 [pid 6096] write(1, "executing program\n", 18) = 18 [pid 6096] perf_event_open({type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6096] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5877] <... unlink resumed>) = 0 [pid 5875] mkdir("./41", 0777 [pid 6096] <... bpf resumed>) = 4 [pid 6094] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./41/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] umount2("./39/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6096] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6094] close(10 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... mkdir resumed>) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6094] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./41/cgroup.net", [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5874] newfstatat(AT_FDCWD, "./39/cgroup.net", [pid 6096] <... bpf resumed>) = 5 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6094] close(11 [pid 5877] unlink("./41/cgroup.net" [pid 5874] unlink("./39/cgroup.net" [pid 6094] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6096] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6094] close(12 [pid 5874] <... unlink resumed>) = 0 [pid 6096] <... bpf resumed>) = 6 [pid 6096] perf_event_open( [pid 6094] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 5874] umount2("./39/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 6097 attached [pid 6096] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6094] close(13 [pid 5877] umount2("./41/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6097] set_robust_list(0x5555947fb660, 24 [pid 6094] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 43 [pid 5874] newfstatat(AT_FDCWD, "./39/cgroup.cpu", [pid 6097] <... set_robust_list resumed>) = 0 [pid 6094] close(14 [pid 5877] newfstatat(AT_FDCWD, "./41/cgroup.cpu", [pid 6094] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6094] close(15 [pid 5874] unlink("./39/cgroup.cpu" [pid 6094] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./41/cgroup.cpu" [pid 6096] close(3 [pid 5874] <... unlink resumed>) = 0 [pid 6094] close(16 [pid 6097] chdir("./41" [pid 6094] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 5874] umount2("./39/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6094] close(17 [pid 5877] umount2("./41/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6094] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6094] close(18 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] newfstatat(AT_FDCWD, "./39/cgroup", [pid 6094] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./41/cgroup", [pid 6097] <... chdir resumed>) = 0 [pid 6097] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6097] setpgid(0, 0 [pid 6094] close(19 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6097] <... setpgid resumed>) = 0 [pid 6094] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./41/cgroup" [pid 6097] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 6094] close(20 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6094] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6097] <... symlink resumed>) = 0 [pid 6094] close(21 [pid 5877] <... unlink resumed>) = 0 [pid 5874] unlink("./39/cgroup" [pid 6097] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 6094] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] getdents64(3, [pid 6096] <... close resumed>) = 0 [pid 5874] <... unlink resumed>) = 0 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6097] <... symlink resumed>) = 0 [pid 6096] close(4 [pid 6094] close(22 [pid 5877] close(3 [pid 5874] getdents64(3, [pid 6097] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 6096] <... close resumed>) = 0 [pid 6094] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... close resumed>) = 0 [pid 6094] close(23 [pid 5877] rmdir("./41" [pid 6096] close(5 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6097] <... symlink resumed>) = 0 [pid 6094] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... rmdir resumed>) = 0 [pid 5874] close(3 [pid 6097] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6096] <... close resumed>) = 0 [pid 6094] close(24 [pid 5877] mkdir("./42", 0777 [pid 5874] <... close resumed>) = 0 [pid 6097] <... openat resumed>) = 3 [pid 6094] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... mkdir resumed>) = 0 [pid 6094] close(25 [pid 5874] rmdir("./39" [pid 6097] write(3, "1000", 4 [pid 6096] close(6 [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6097] <... write resumed>) = 4 [pid 6096] <... close resumed>) = 0 [pid 6094] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... rmdir resumed>) = 0 [pid 6097] close(3 [pid 6094] close(26 [pid 5874] mkdir("./40", 0777./strace-static-x86_64: Process 6098 attached [pid 6094] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6094] close(27 [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 44 [pid 6094] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6097] <... close resumed>) = 0 [pid 6096] close(7 [pid 5874] <... mkdir resumed>) = 0 [pid 6098] set_robust_list(0x5555947fb660, 24 [pid 6097] read(200, [pid 6094] close(28 [pid 6098] <... set_robust_list resumed>) = 0 [pid 6094] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6096] <... close resumed>) = 0 [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6098] chdir("./42" [pid 6097] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6097] symlink("/dev/binderfs", "./binderfs" [pid 6096] close(8 [pid 6097] <... symlink resumed>) = 0 executing program [pid 6097] write(1, "executing program\n", 18 [pid 6096] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6096] close(9 [pid 6097] <... write resumed>) = 18 [pid 6096] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 6099 attached [pid 6098] <... chdir resumed>) = 0 [pid 6097] perf_event_open( [pid 6096] close(10 [pid 6094] close(29 [pid 6098] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6094] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6098] <... prctl resumed>) = 0 [pid 6099] set_robust_list(0x5555947fb660, 24 [pid 6098] setpgid(0, 0 [pid 6096] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6094] exit_group(0 [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 42 [pid 6096] close(11) = -1 EBADF (Bad file descriptor) [pid 6094] <... exit_group resumed>) = ? [pid 6096] close(12) = -1 EBADF (Bad file descriptor) [pid 6096] close(13) = -1 EBADF (Bad file descriptor) [pid 6096] close(14) = -1 EBADF (Bad file descriptor) [pid 6096] close(15) = -1 EBADF (Bad file descriptor) [pid 6096] close(16) = -1 EBADF (Bad file descriptor) [pid 6096] close(17) = -1 EBADF (Bad file descriptor) [pid 6096] close(18) = -1 EBADF (Bad file descriptor) [pid 6096] close(19) = -1 EBADF (Bad file descriptor) [pid 6096] close(20) = -1 EBADF (Bad file descriptor) [pid 6096] close(21) = -1 EBADF (Bad file descriptor) [pid 6096] close(22) = -1 EBADF (Bad file descriptor) [pid 6096] close(23) = -1 EBADF (Bad file descriptor) [pid 6096] close(24) = -1 EBADF (Bad file descriptor) [pid 6096] close(25) = -1 EBADF (Bad file descriptor) [pid 6094] +++ exited with 0 +++ [pid 6096] close(26 [pid 6098] <... setpgid resumed>) = 0 [pid 6099] <... set_robust_list resumed>) = 0 [pid 6096] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6096] close(27) = -1 EBADF (Bad file descriptor) [pid 6096] close(28) = -1 EBADF (Bad file descriptor) [pid 6098] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 6096] close(29 [pid 6097] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6096] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6099] chdir("./40" [pid 6097] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6096] exit_group(0 [pid 6097] <... bpf resumed>) = 4 [pid 6096] <... exit_group resumed>) = ? [pid 6099] <... chdir resumed>) = 0 [pid 6098] <... symlink resumed>) = 0 [pid 6097] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6099] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6098] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 6099] <... prctl resumed>) = 0 [pid 6098] <... symlink resumed>) = 0 [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=43, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6099] setpgid(0, 0) = 0 [pid 6098] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5873] restart_syscall(<... resuming interrupted clone ...> [pid 6099] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 6097] <... bpf resumed>) = 5 [pid 6096] +++ exited with 0 +++ [pid 6097] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6099] <... symlink resumed>) = 0 [pid 6098] <... symlink resumed>) = 0 [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=44, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5873] <... restart_syscall resumed>) = 0 [pid 6099] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5876] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 6098] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6097] <... bpf resumed>) = 6 [pid 6098] <... openat resumed>) = 3 [pid 6097] perf_event_open( [pid 6099] <... symlink resumed>) = 0 [pid 6098] write(3, "1000", 4 [pid 6097] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5876] umount2("./42", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] umount2("./41", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6099] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] openat(AT_FDCWD, "./42", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5873] openat(AT_FDCWD, "./41", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6098] <... write resumed>) = 4 [pid 6097] close(3 [pid 5876] <... openat resumed>) = 3 [pid 5873] <... openat resumed>) = 3 [pid 6099] <... symlink resumed>) = 0 [pid 6098] close(3 [pid 5876] newfstatat(3, "", [pid 5873] newfstatat(3, "", [pid 6098] <... close resumed>) = 0 executing program [pid 6099] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6098] read(200, 0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6098] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6099] <... openat resumed>) = 3 [pid 6098] write(1, "executing program\n", 18 [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6099] write(3, "1000", 4 [pid 6098] <... write resumed>) = 18 [pid 5873] getdents64(3, [pid 6099] <... write resumed>) = 4 [pid 6098] perf_event_open( [pid 5876] getdents64(3, [pid 6099] close(3 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6099] <... close resumed>) = 0 [pid 6099] read(200, [pid 5876] umount2("./42/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] umount2("./41/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6099] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6099] symlink("/dev/binderfs", "./binderfs" [pid 5876] newfstatat(AT_FDCWD, "./42/binderfs", [pid 5873] newfstatat(AT_FDCWD, "./41/binderfs", [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] unlink("./42/binderfs"executing program [pid 5873] unlink("./41/binderfs" [pid 6099] <... symlink resumed>) = 0 [pid 6099] write(1, "executing program\n", 18) = 18 [pid 5876] <... unlink resumed>) = 0 [pid 5873] <... unlink resumed>) = 0 [pid 6099] perf_event_open( [pid 5876] umount2("./42/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] umount2("./41/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] newfstatat(AT_FDCWD, "./42/cgroup.net", [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] newfstatat(AT_FDCWD, "./41/cgroup.net", [pid 5876] unlink("./42/cgroup.net") = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] umount2("./42/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6097] <... close resumed>) = 0 [pid 5873] unlink("./41/cgroup.net" [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6098] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6097] close(4 [pid 5873] <... unlink resumed>) = 0 [pid 5876] newfstatat(AT_FDCWD, "./42/cgroup.cpu", [pid 5873] umount2("./41/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6097] <... close resumed>) = 0 [pid 6099] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6098] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6099] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6097] close(5 [pid 5876] unlink("./42/cgroup.cpu" [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6099] <... bpf resumed>) = 4 [pid 6098] <... bpf resumed>) = 4 [pid 6097] <... close resumed>) = 0 [pid 6099] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6097] close(6 [pid 6098] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5876] <... unlink resumed>) = 0 [pid 5873] newfstatat(AT_FDCWD, "./41/cgroup.cpu", [pid 6099] <... bpf resumed>) = 5 [pid 6098] <... bpf resumed>) = 5 [pid 5876] umount2("./42/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6099] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24) = 6 [pid 6098] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6097] <... close resumed>) = 0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6099] perf_event_open( [pid 6098] <... bpf resumed>) = 6 [pid 6097] close(7 [pid 5876] newfstatat(AT_FDCWD, "./42/cgroup", [pid 6097] <... close resumed>) = 0 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] unlink("./41/cgroup.cpu" [pid 6099] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6097] close(8 [pid 5876] unlink("./42/cgroup" [pid 5873] <... unlink resumed>) = 0 [pid 6099] close(3 [pid 6098] perf_event_open( [pid 6097] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 5873] umount2("./41/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6098] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6097] close(9 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6099] <... close resumed>) = 0 [pid 6098] close(3 [pid 6097] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] getdents64(3, [pid 5873] newfstatat(AT_FDCWD, "./41/cgroup", [pid 6099] close(4 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6099] <... close resumed>) = 0 [pid 6097] close(10 [pid 5876] close(3 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6099] close(5 [pid 6097] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... close resumed>) = 0 [pid 5873] unlink("./41/cgroup" [pid 6097] close(11 [pid 5876] rmdir("./42" [pid 6097] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6099] <... close resumed>) = 0 [pid 6097] close(12 [pid 5876] <... rmdir resumed>) = 0 [pid 5873] <... unlink resumed>) = 0 [pid 5876] mkdir("./43", 0777 [pid 6099] close(6 [pid 6097] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... mkdir resumed>) = 0 [pid 5873] getdents64(3, 0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6097] close(13 [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5873] close(3 [pid 6099] <... close resumed>) = 0 [pid 6097] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 6100 attached [pid 6097] close(14 [pid 5873] <... close resumed>) = 0 [pid 6100] set_robust_list(0x5555947fb660, 24 [pid 6099] close(7 [pid 6097] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] rmdir("./41" [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 45 [pid 6100] <... set_robust_list resumed>) = 0 [pid 6097] close(15) = -1 EBADF (Bad file descriptor) [pid 6097] close(16 [pid 6100] chdir("./43" [pid 6099] <... close resumed>) = 0 [pid 6097] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... rmdir resumed>) = 0 [pid 6100] <... chdir resumed>) = 0 [pid 6099] close(8 [pid 6097] close(17 [pid 6099] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6097] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6099] close(9 [pid 6097] close(18 [pid 6100] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6099] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6098] <... close resumed>) = 0 [pid 6097] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] mkdir("./42", 0777 [pid 6100] <... prctl resumed>) = 0 [pid 6099] close(10 [pid 6097] close(19 [pid 6099] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6097] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6099] close(11 [pid 6097] close(20 [pid 5873] <... mkdir resumed>) = 0 [pid 6099] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6098] close(4 [pid 6097] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6100] setpgid(0, 0 [pid 6099] close(12 [pid 6097] close(21 [pid 6099] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6098] <... close resumed>) = 0 [pid 6097] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6100] <... setpgid resumed>) = 0 [pid 6099] close(13 [pid 6097] close(22 [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6099] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6097] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6099] close(14 [pid 6097] close(23 [pid 6100] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 6099] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6097] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6099] close(15 [pid 6097] close(24 [pid 6099] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6097] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6099] close(16 [pid 6097] close(25 [pid 6099] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6097] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6099] close(17 [pid 6097] close(26 [pid 6099] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6097] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6099] close(18 [pid 6097] close(27 [pid 6099] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6097] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6099] close(19 [pid 6097] close(28 [pid 6099] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6097] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6100] <... symlink resumed>) = 0 [pid 6099] close(20 [pid 6097] close(29 [pid 6099] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6097] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 6101 attached [pid 6100] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 6099] close(21 [pid 6098] close(5 [pid 6097] exit_group(0 [pid 6099] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6097] <... exit_group resumed>) = ? [pid 6099] close(22 [pid 6098] <... close resumed>) = 0 [pid 6099] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6098] close(6 [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 44 [pid 6099] close(23) = -1 EBADF (Bad file descriptor) [pid 6099] close(24 [pid 6098] <... close resumed>) = 0 [pid 6101] set_robust_list(0x5555947fb660, 24 [pid 6099] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6099] close(25) = -1 EBADF (Bad file descriptor) [pid 6101] <... set_robust_list resumed>) = 0 [pid 6100] <... symlink resumed>) = 0 [pid 6099] close(26 [pid 6098] close(7 [pid 6099] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6097] +++ exited with 0 +++ [pid 6098] <... close resumed>) = 0 [pid 6100] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 6098] close(8 [pid 6100] <... symlink resumed>) = 0 [pid 6099] close(27 [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=43, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 6101] chdir("./42" [pid 6099] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6098] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6099] close(28 [pid 5875] umount2("./41", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6099] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6099] close(29 [pid 5875] openat(AT_FDCWD, "./41", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6101] <... chdir resumed>) = 0 [pid 6100] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6099] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6098] close(9 [pid 6101] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6098] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6101] <... prctl resumed>) = 0 [pid 6098] close(10 [pid 6101] setpgid(0, 0 [pid 6099] exit_group(0 [pid 6098] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... openat resumed>) = 3 [pid 6100] <... openat resumed>) = 3 [pid 6101] <... setpgid resumed>) = 0 [pid 6099] <... exit_group resumed>) = ? [pid 6098] close(11 [pid 5875] newfstatat(3, "", [pid 6101] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 6100] write(3, "1000", 4 [pid 6098] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6101] <... symlink resumed>) = 0 [pid 6100] <... write resumed>) = 4 [pid 6098] close(12 [pid 6100] close(3 [pid 6099] +++ exited with 0 +++ [pid 6101] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 6098] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6100] <... close resumed>) = 0 [pid 5875] getdents64(3, [pid 6100] read(200, [pid 6098] close(13 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=42, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 6101] <... symlink resumed>) = 0 [pid 6100] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6098] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./41/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] restart_syscall(<... resuming interrupted clone ...> [pid 6101] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 6100] symlink("/dev/binderfs", "./binderfs" [pid 6098] close(14 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] newfstatat(AT_FDCWD, "./41/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] unlink("./41/binderfs" [pid 6101] <... symlink resumed>) = 0 [pid 6100] <... symlink resumed>) = 0 [pid 6098] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 [pid 6101] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6100] write(1, "executing program\n", 18 [pid 6098] close(15 [pid 5875] umount2("./41/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOWexecuting program [pid 6098] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6100] <... write resumed>) = 18 [pid 6098] close(16 [pid 5875] newfstatat(AT_FDCWD, "./41/cgroup.net", [pid 6101] <... openat resumed>) = 3 [pid 6100] perf_event_open( [pid 6098] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] unlink("./41/cgroup.net" [pid 6101] write(3, "1000", 4 [pid 6098] close(17 [pid 6101] <... write resumed>) = 4 [pid 5875] <... unlink resumed>) = 0 [pid 6101] close(3 [pid 6098] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./41/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6101] <... close resumed>) = 0 [pid 6100] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6098] close(18 [pid 6101] read(200, [pid 6100] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6098] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(AT_FDCWD, "./41/cgroup.cpu", [pid 6101] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6100] <... bpf resumed>) = 4 [pid 6098] close(19 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6098] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6100] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6101] symlink("/dev/binderfs", "./binderfs" [pid 6098] close(20 [pid 5875] unlink("./41/cgroup.cpu" [pid 6101] <... symlink resumed>) = 0 [pid 6098] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 [pid 5874] <... restart_syscall resumed>) = 0 [pid 6098] close(21 [pid 5875] umount2("./41/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6098] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6098] close(22 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6098] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(AT_FDCWD, "./41/cgroup", [pid 6098] close(23 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6098] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6098] close(24 [pid 5875] unlink("./41/cgroup" [pid 6100] <... bpf resumed>) = 5 [pid 6098] <... close resumed>) = -1 EBADF (Bad file descriptor) executing program [pid 5875] <... unlink resumed>) = 0 [pid 6098] close(25 [pid 6101] write(1, "executing program\n", 18 [pid 6098] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] getdents64(3, [pid 6098] close(26 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6101] <... write resumed>) = 18 [pid 6098] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] close(3 [pid 6101] perf_event_open( [pid 6098] close(27 [pid 5875] <... close resumed>) = 0 [pid 6098] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./40", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6098] close(28 [pid 5875] rmdir("./41" [pid 6101] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6098] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... rmdir resumed>) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6098] close(29 [pid 6100] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5874] openat(AT_FDCWD, "./40", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6101] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6098] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] mkdir("./42", 0777 [pid 6098] exit_group(0 [pid 6100] <... bpf resumed>) = 6 [pid 5875] <... mkdir resumed>) = 0 [pid 5874] <... openat resumed>) = 3 [pid 6098] <... exit_group resumed>) = ? [pid 5874] newfstatat(3, "", [pid 6101] <... bpf resumed>) = 4 [pid 6100] perf_event_open( [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6101] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6098] +++ exited with 0 +++ [pid 5874] getdents64(3, [pid 6100] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 ./strace-static-x86_64: Process 6102 attached [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 44 [pid 6102] set_robust_list(0x5555947fb660, 24 [pid 6101] <... bpf resumed>) = 5 [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=44, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6101] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5877] restart_syscall(<... resuming interrupted clone ...> [pid 6101] <... bpf resumed>) = 6 [pid 5877] <... restart_syscall resumed>) = 0 [pid 5877] umount2("./42", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6101] perf_event_open( [pid 6100] close(3 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6102] <... set_robust_list resumed>) = 0 [pid 6101] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6101] close(3 [pid 5877] openat(AT_FDCWD, "./42", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6102] chdir("./42" [pid 6100] <... close resumed>) = 0 [pid 5877] <... openat resumed>) = 3 [pid 5874] umount2("./40/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6102] <... chdir resumed>) = 0 [pid 6100] close(4 [pid 5877] newfstatat(3, "", [pid 6102] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6100] <... close resumed>) = 0 [pid 5877] getdents64(3, [pid 6102] <... prctl resumed>) = 0 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5874] newfstatat(AT_FDCWD, "./40/binderfs", [pid 5877] umount2("./42/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5877] newfstatat(AT_FDCWD, "./42/binderfs", [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6102] setpgid(0, 0 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5877] unlink("./42/binderfs") = 0 [pid 6102] <... setpgid resumed>) = 0 [pid 6100] close(5 [pid 5877] umount2("./42/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] unlink("./40/binderfs" [pid 6100] <... close resumed>) = 0 [pid 6100] close(6 [pid 6102] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 6100] <... close resumed>) = 0 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] <... unlink resumed>) = 0 [pid 6100] close(7 [pid 5877] newfstatat(AT_FDCWD, "./42/cgroup.net", [pid 5874] umount2("./40/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6102] <... symlink resumed>) = 0 [pid 6100] <... close resumed>) = 0 [pid 6100] close(8) = -1 EBADF (Bad file descriptor) [pid 6100] close(9) = -1 EBADF (Bad file descriptor) [pid 6100] close(10) = -1 EBADF (Bad file descriptor) [pid 6102] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 6100] close(11 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6100] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./42/cgroup.net" [pid 5874] newfstatat(AT_FDCWD, "./40/cgroup.net", [pid 6100] close(12) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6100] close(13 [pid 5877] <... unlink resumed>) = 0 [pid 5874] unlink("./40/cgroup.net" [pid 6102] <... symlink resumed>) = 0 [pid 6101] <... close resumed>) = 0 [pid 6100] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./42/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6100] close(14 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] <... unlink resumed>) = 0 [pid 6102] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 6101] close(4 [pid 6100] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6101] <... close resumed>) = 0 [pid 6100] close(15 [pid 5877] newfstatat(AT_FDCWD, "./42/cgroup.cpu", [pid 5874] umount2("./40/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6102] <... symlink resumed>) = 0 [pid 6101] close(5 [pid 6100] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6101] <... close resumed>) = 0 [pid 6100] close(16 [pid 6101] close(6 [pid 6100] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] newfstatat(AT_FDCWD, "./40/cgroup.cpu", [pid 6102] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6101] <... close resumed>) = 0 [pid 6100] close(17 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6101] close(7 [pid 6100] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6102] <... openat resumed>) = 3 [pid 6101] <... close resumed>) = 0 [pid 5877] unlink("./42/cgroup.cpu" [pid 5874] unlink("./40/cgroup.cpu" [pid 6102] write(3, "1000", 4 [pid 6101] close(8 [pid 6100] close(18 [pid 6102] <... write resumed>) = 4 [pid 6101] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6100] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... unlink resumed>) = 0 [pid 6101] close(9) = -1 EBADF (Bad file descriptor) [pid 6100] close(19 [pid 6101] close(10 [pid 6100] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6101] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6100] close(20 [pid 6101] close(11 [pid 6100] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6101] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6101] close(12 [pid 6100] close(21 [pid 6101] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6100] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6101] close(13) = -1 EBADF (Bad file descriptor) [pid 6100] close(22 [pid 6101] close(14 [pid 6100] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6101] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6100] close(23 [pid 6101] close(15 [pid 6100] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6101] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6101] close(16 [pid 6100] close(24 [pid 6101] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6100] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6101] close(17 [pid 6100] close(25 [pid 6101] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6100] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6101] close(18) = -1 EBADF (Bad file descriptor) [pid 6100] close(26 [pid 6101] close(19 [pid 6100] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6101] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6101] close(20 [pid 6100] close(27 [pid 6101] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6102] close(3 [pid 6101] close(21 [pid 6100] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 5874] umount2("./40/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6102] <... close resumed>) = 0 [pid 6101] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6100] close(28 [pid 5877] umount2("./42/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6102] read(200, [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6102] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) executing program [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] newfstatat(AT_FDCWD, "./40/cgroup", [pid 6102] symlink("/dev/binderfs", "./binderfs" [pid 5877] newfstatat(AT_FDCWD, "./42/cgroup", [pid 6101] close(22 [pid 6100] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6102] <... symlink resumed>) = 0 [pid 6101] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6100] close(29 [pid 6102] write(1, "executing program\n", 18 [pid 6101] close(23 [pid 6100] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6102] <... write resumed>) = 18 [pid 6101] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6100] exit_group(0 [pid 5877] unlink("./42/cgroup" [pid 5874] unlink("./40/cgroup" [pid 6101] close(24 [pid 6100] <... exit_group resumed>) = ? [pid 6102] perf_event_open( [pid 6101] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 5874] <... unlink resumed>) = 0 [pid 6101] close(25 [pid 6100] +++ exited with 0 +++ [pid 5877] getdents64(3, [pid 5874] getdents64(3, [pid 6102] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6102] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6101] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6102] <... bpf resumed>) = 4 [pid 6101] close(26 [pid 5877] close(3 [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=45, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5874] close(3 [pid 6102] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6101] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... close resumed>) = 0 [pid 5874] <... close resumed>) = 0 [pid 6101] close(27) = -1 EBADF (Bad file descriptor) [pid 6101] close(28) = -1 EBADF (Bad file descriptor) [pid 6101] close(29) = -1 EBADF (Bad file descriptor) [pid 6101] exit_group(0) = ? [pid 6102] <... bpf resumed>) = 5 [pid 5877] rmdir("./42" [pid 5874] rmdir("./40" [pid 6102] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6101] +++ exited with 0 +++ [pid 5877] <... rmdir resumed>) = 0 [pid 5874] <... rmdir resumed>) = 0 [pid 5877] mkdir("./43", 0777 [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=44, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5873] restart_syscall(<... resuming interrupted clone ...> [pid 5877] <... mkdir resumed>) = 0 [pid 5874] mkdir("./41", 0777 [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6102] <... bpf resumed>) = 6 [pid 5874] <... mkdir resumed>) = 0 [pid 6102] perf_event_open(./strace-static-x86_64: Process 6103 attached {type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5873] <... restart_syscall resumed>) = 0 [pid 6103] set_robust_list(0x5555947fb660, 24 [pid 6102] close(3 [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 45 [pid 6103] <... set_robust_list resumed>) = 0 [pid 6103] chdir("./43" [pid 5876] umount2("./43", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] umount2("./42", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6103] <... chdir resumed>) = 0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] openat(AT_FDCWD, "./42", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5876] openat(AT_FDCWD, "./43", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5873] <... openat resumed>) = 3 [pid 6103] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5876] <... openat resumed>) = 3 [pid 5873] newfstatat(3, "", [pid 5876] newfstatat(3, "", ./strace-static-x86_64: Process 6104 attached [pid 6103] <... prctl resumed>) = 0 [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6104] set_robust_list(0x5555947fb660, 24 [pid 6103] setpgid(0, 0 [pid 5876] getdents64(3, [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 43 [pid 5873] getdents64(3, [pid 6104] <... set_robust_list resumed>) = 0 [pid 6103] <... setpgid resumed>) = 0 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6104] chdir("./41") = 0 [pid 5876] umount2("./43/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] umount2("./42/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6104] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6104] <... prctl resumed>) = 0 [pid 5876] newfstatat(AT_FDCWD, "./43/binderfs", [pid 5873] newfstatat(AT_FDCWD, "./42/binderfs", [pid 6104] setpgid(0, 0 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6104] <... setpgid resumed>) = 0 [pid 5876] unlink("./43/binderfs" [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6104] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 6103] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 6104] <... symlink resumed>) = 0 [pid 5876] <... unlink resumed>) = 0 [pid 5873] unlink("./42/binderfs" [pid 6103] <... symlink resumed>) = 0 [pid 5876] umount2("./43/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... unlink resumed>) = 0 [pid 6104] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 6103] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] umount2("./42/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6104] <... symlink resumed>) = 0 [pid 5876] newfstatat(AT_FDCWD, "./43/cgroup.net", [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6104] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 6103] <... symlink resumed>) = 0 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] newfstatat(AT_FDCWD, "./42/cgroup.net", [pid 6104] <... symlink resumed>) = 0 [pid 6103] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5876] unlink("./43/cgroup.net" [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6104] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5876] <... unlink resumed>) = 0 [pid 6104] <... openat resumed>) = 3 [pid 6103] <... symlink resumed>) = 0 [pid 5873] unlink("./42/cgroup.net" [pid 6104] write(3, "1000", 4 [pid 5876] umount2("./43/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... unlink resumed>) = 0 [pid 6104] <... write resumed>) = 4 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] umount2("./42/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6104] close(3 [pid 5876] newfstatat(AT_FDCWD, "./43/cgroup.cpu", [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6104] <... close resumed>) = 0 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6104] read(200, [pid 6103] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6104] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5876] unlink("./43/cgroup.cpu" [pid 5873] newfstatat(AT_FDCWD, "./42/cgroup.cpu", [pid 6104] symlink("/dev/binderfs", "./binderfs" [pid 5876] <... unlink resumed>) = 0 [pid 5876] umount2("./43/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6104] <... symlink resumed>) = 0 [pid 6103] <... openat resumed>) = 3 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) executing program [pid 6103] write(3, "1000", 4 [pid 5876] newfstatat(AT_FDCWD, "./43/cgroup", [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6104] write(1, "executing program\n", 18 [pid 6103] <... write resumed>) = 4 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] unlink("./42/cgroup.cpu" [pid 6104] <... write resumed>) = 18 [pid 6103] close(3 [pid 5876] unlink("./43/cgroup" [pid 5873] <... unlink resumed>) = 0 [pid 6104] perf_event_open( [pid 6103] <... close resumed>) = 0 [pid 5876] <... unlink resumed>) = 0 [pid 6103] read(200, [pid 5876] getdents64(3, [pid 5873] umount2("./42/cgroup", MNT_FORCE|UMOUNT_NOFOLLOWexecuting program [pid 6103] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6103] symlink("/dev/binderfs", "./binderfs" [pid 5876] close(3 [pid 5873] newfstatat(AT_FDCWD, "./42/cgroup", [pid 5876] <... close resumed>) = 0 [pid 6103] <... symlink resumed>) = 0 [pid 5876] rmdir("./43" [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6103] write(1, "executing program\n", 18) = 18 [pid 5876] <... rmdir resumed>) = 0 [pid 5873] unlink("./42/cgroup" [pid 6103] perf_event_open( [pid 5876] mkdir("./44", 0777 [pid 5873] <... unlink resumed>) = 0 [pid 5876] <... mkdir resumed>) = 0 [pid 5873] getdents64(3, [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5873] close(3) = 0 [pid 5873] rmdir("./42"./strace-static-x86_64: Process 6105 attached ) = 0 [pid 6105] set_robust_list(0x5555947fb660, 24) = 0 [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 46 [pid 5873] mkdir("./43", 0777 [pid 6105] chdir("./44" [pid 5873] <... mkdir resumed>) = 0 [pid 6105] <... chdir resumed>) = 0 [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6105] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 ./strace-static-x86_64: Process 6106 attached [pid 6104] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6103] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6102] <... close resumed>) = 0 [pid 6106] set_robust_list(0x5555947fb660, 24 [pid 6105] setpgid(0, 0 [pid 6104] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6103] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6106] <... set_robust_list resumed>) = 0 [pid 6105] <... setpgid resumed>) = 0 [pid 6104] <... bpf resumed>) = 4 [pid 6102] close(4 [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 45 [pid 6106] chdir("./43" [pid 6105] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 6104] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6103] <... bpf resumed>) = 4 [pid 6102] <... close resumed>) = 0 [pid 6106] <... chdir resumed>) = 0 [pid 6105] <... symlink resumed>) = 0 [pid 6103] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6106] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6105] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 6104] <... bpf resumed>) = 5 [pid 6102] close(5 [pid 6106] <... prctl resumed>) = 0 [pid 6105] <... symlink resumed>) = 0 [pid 6104] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6102] <... close resumed>) = 0 [pid 6106] setpgid(0, 0 [pid 6105] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 6104] <... bpf resumed>) = 6 [pid 6102] close(6 [pid 6104] perf_event_open( [pid 6106] <... setpgid resumed>) = 0 [pid 6104] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6104] close(3 [pid 6106] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 6105] <... symlink resumed>) = 0 [pid 6103] <... bpf resumed>) = 5 [pid 6102] <... close resumed>) = 0 [pid 6106] <... symlink resumed>) = 0 [pid 6105] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6104] <... close resumed>) = 0 [pid 6103] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6102] close(7 [pid 6106] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 6105] <... openat resumed>) = 3 [pid 6104] close(4 [pid 6103] <... bpf resumed>) = 6 [pid 6102] <... close resumed>) = 0 [pid 6106] <... symlink resumed>) = 0 [pid 6104] <... close resumed>) = 0 [pid 6103] perf_event_open( [pid 6102] close(8 [pid 6104] close(5 [pid 6106] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 6105] write(3, "1000", 4 [pid 6103] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6102] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6104] <... close resumed>) = 0 [pid 6103] close(3 [pid 6102] close(9 [pid 6105] <... write resumed>) = 4 [pid 6104] close(6 [pid 6106] <... symlink resumed>) = 0 [pid 6102] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6105] close(3 [pid 6106] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6105] <... close resumed>) = 0 [pid 6105] read(200, [pid 6102] close(10 [pid 6105] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6102] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6105] symlink("/dev/binderfs", "./binderfs" [pid 6102] close(11) = -1 EBADF (Bad file descriptor) [pid 6102] close(12) = -1 EBADF (Bad file descriptor) [pid 6102] close(13 [pid 6105] <... symlink resumed>) = 0 [pid 6102] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6102] close(14) = -1 EBADF (Bad file descriptor) [pid 6102] close(15) = -1 EBADF (Bad file descriptor) [pid 6102] close(16) = -1 EBADF (Bad file descriptor) [pid 6102] close(17) = -1 EBADF (Bad file descriptor) [pid 6102] close(18) = -1 EBADF (Bad file descriptor) [pid 6102] close(19) = -1 EBADF (Bad file descriptor) [pid 6102] close(20) = -1 EBADF (Bad file descriptor) [pid 6102] close(21) = -1 EBADF (Bad file descriptor) [pid 6102] close(22) = -1 EBADF (Bad file descriptor) [pid 6102] close(23) = -1 EBADF (Bad file descriptor) [pid 6102] close(24) = -1 EBADF (Bad file descriptor) [pid 6102] close(25) = -1 EBADF (Bad file descriptor) [pid 6102] close(26) = -1 EBADF (Bad file descriptor) [pid 6102] close(27) = -1 EBADF (Bad file descriptor) [pid 6102] close(28) = -1 EBADF (Bad file descriptor) [pid 6102] close(29) = -1 EBADF (Bad file descriptor) [pid 6102] exit_group(0) = ? [pid 6106] <... openat resumed>) = 3 [pid 6105] write(1, "executing program\n", 18executing program [pid 6104] <... close resumed>) = 0 [pid 6105] <... write resumed>) = 18 [pid 6104] close(7 [pid 6106] write(3, "1000", 4 [pid 6105] perf_event_open( [pid 6104] <... close resumed>) = 0 [pid 6102] +++ exited with 0 +++ [pid 6106] <... write resumed>) = 4 [pid 6106] close(3 [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=44, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6106] <... close resumed>) = 0 [pid 6104] close(8 [pid 5875] umount2("./42", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6106] read(200, [pid 6104] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6106] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6106] symlink("/dev/binderfs", "./binderfs"executing program [pid 6104] close(9 [pid 5875] openat(AT_FDCWD, "./42", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6106] <... symlink resumed>) = 0 [pid 6104] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6106] write(1, "executing program\n", 18) = 18 [pid 5875] <... openat resumed>) = 3 [pid 6106] perf_event_open( [pid 5875] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5875] getdents64(3, 0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6104] close(10 [pid 5875] umount2("./42/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6104] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6104] close(11 [pid 5875] newfstatat(AT_FDCWD, "./42/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] unlink("./42/binderfs" [pid 6104] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 [pid 6104] close(12) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./42/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6104] close(13 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6104] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(AT_FDCWD, "./42/cgroup.net", [pid 6104] close(14 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6104] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] unlink("./42/cgroup.net" [pid 6104] close(15 [pid 5875] <... unlink resumed>) = 0 [pid 6104] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6104] close(16 [pid 5875] umount2("./42/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6104] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6106] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6105] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6104] close(17 [pid 6103] <... close resumed>) = 0 [pid 6105] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6104] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6103] close(4 [pid 5875] newfstatat(AT_FDCWD, "./42/cgroup.cpu", [pid 6105] <... bpf resumed>) = 4 [pid 6106] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6104] close(18 [pid 6103] <... close resumed>) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6105] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6106] <... bpf resumed>) = 4 [pid 6105] <... bpf resumed>) = 5 [pid 6104] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6103] close(5 [pid 5875] unlink("./42/cgroup.cpu" [pid 6106] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6105] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6104] close(19 [pid 5875] <... unlink resumed>) = 0 [pid 6104] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6103] <... close resumed>) = 0 [pid 5875] umount2("./42/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6105] <... bpf resumed>) = 6 [pid 6104] close(20 [pid 6103] close(6 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6105] perf_event_open( [pid 6104] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6104] close(21 [pid 5875] newfstatat(AT_FDCWD, "./42/cgroup", [pid 6105] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6104] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6104] close(22 [pid 5875] unlink("./42/cgroup" [pid 6104] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6104] close(23 [pid 5875] <... unlink resumed>) = 0 [pid 6104] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6104] close(24) = -1 EBADF (Bad file descriptor) [pid 5875] getdents64(3, [pid 6104] close(25) = -1 EBADF (Bad file descriptor) [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6104] close(26 [pid 5875] close(3 [pid 6104] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6104] close(27 [pid 5875] <... close resumed>) = 0 [pid 6104] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6104] close(28 [pid 5875] rmdir("./42" [pid 6104] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... rmdir resumed>) = 0 [pid 6104] close(29) = -1 EBADF (Bad file descriptor) [pid 5875] mkdir("./43", 0777 [pid 6104] exit_group(0 [pid 5875] <... mkdir resumed>) = 0 [pid 6106] <... bpf resumed>) = 5 [pid 6105] close(3 [pid 6104] <... exit_group resumed>) = ? [pid 6103] <... close resumed>) = 0 [pid 6106] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6105] <... close resumed>) = 0 [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6106] <... bpf resumed>) = 6 [pid 6103] close(7 [pid 6105] close(4 [pid 6106] perf_event_open( [pid 6105] <... close resumed>) = 0 [pid 6103] <... close resumed>) = 0 ./strace-static-x86_64: Process 6108 attached [pid 6106] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6105] close(5 [pid 6108] set_robust_list(0x5555947fb660, 24 [pid 6106] close(3 [pid 6104] +++ exited with 0 +++ [pid 6103] close(8 [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 45 [pid 6108] <... set_robust_list resumed>) = 0 [pid 6105] <... close resumed>) = 0 [pid 6103] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6108] chdir("./43" [pid 6105] close(6 [pid 6103] close(9 [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=43, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6108] <... chdir resumed>) = 0 [pid 6103] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6108] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6103] close(10 [pid 5874] restart_syscall(<... resuming interrupted clone ...> [pid 6108] <... prctl resumed>) = 0 [pid 6103] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6108] setpgid(0, 0 [pid 6103] close(11 [pid 5874] <... restart_syscall resumed>) = 0 [pid 6108] <... setpgid resumed>) = 0 [pid 6103] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6108] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 6103] close(12 [pid 6105] <... close resumed>) = 0 [pid 6103] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6108] <... symlink resumed>) = 0 [pid 6105] close(7 [pid 6103] close(13) = -1 EBADF (Bad file descriptor) [pid 6108] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 6103] close(14 [pid 6108] <... symlink resumed>) = 0 [pid 6105] <... close resumed>) = 0 [pid 5874] umount2("./41", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6103] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6108] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 6103] close(15 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6108] <... symlink resumed>) = 0 [pid 6103] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] openat(AT_FDCWD, "./41", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6108] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6105] close(8 [pid 6103] close(16 [pid 6108] <... openat resumed>) = 3 [pid 6105] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6103] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... openat resumed>) = 3 [pid 6105] close(9 [pid 5874] newfstatat(3, "", [pid 6105] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6108] write(3, "1000", 4 [pid 6103] close(17 [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6105] close(10 [pid 6103] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6108] <... write resumed>) = 4 [pid 6103] close(18 [pid 6108] close(3 [pid 6103] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6108] <... close resumed>) = 0 [pid 6103] close(19 [pid 6108] read(200, [pid 6103] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6108] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6103] close(20 [pid 6108] symlink("/dev/binderfs", "./binderfs" [pid 6103] <... close resumed>) = -1 EBADF (Bad file descriptor) executing program [pid 6108] <... symlink resumed>) = 0 [pid 6105] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6103] close(21 [pid 5874] getdents64(3, [pid 6103] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6108] write(1, "executing program\n", 18 [pid 6103] close(22 [pid 6108] <... write resumed>) = 18 [pid 6105] close(11 [pid 6103] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6108] perf_event_open( [pid 6105] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6103] close(23 [pid 5874] umount2("./41/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6105] close(12 [pid 6103] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6105] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6103] close(24 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6105] close(13 [pid 5874] newfstatat(AT_FDCWD, "./41/binderfs", [pid 6105] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6105] close(14 [pid 6103] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6105] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6103] close(25 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6105] close(15 [pid 6103] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6105] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6103] close(26 [pid 5874] unlink("./41/binderfs" [pid 6105] close(16 [pid 6103] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6103] close(27 [pid 5874] <... unlink resumed>) = 0 [pid 6105] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6103] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./41/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6105] close(17 [pid 6103] close(28 [pid 6105] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6103] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6105] close(18 [pid 6103] close(29 [pid 6105] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6103] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] newfstatat(AT_FDCWD, "./41/cgroup.net", [pid 6105] close(19 [pid 6103] exit_group(0) = ? [pid 6105] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6105] close(20 [pid 5874] unlink("./41/cgroup.net") = 0 [pid 5874] umount2("./41/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6103] +++ exited with 0 +++ [pid 6105] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=45, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5874] newfstatat(AT_FDCWD, "./41/cgroup.cpu", [pid 6105] close(21 [pid 5877] restart_syscall(<... resuming interrupted clone ...> [pid 6105] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6105] close(22) = -1 EBADF (Bad file descriptor) [pid 5874] unlink("./41/cgroup.cpu" [pid 6105] close(23 [pid 5874] <... unlink resumed>) = 0 [pid 6105] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6105] close(24 [pid 5874] umount2("./41/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6105] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... restart_syscall resumed>) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6105] close(25 [pid 5874] newfstatat(AT_FDCWD, "./41/cgroup", [pid 6105] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6108] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6105] close(26 [pid 6108] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6106] <... close resumed>) = 0 [pid 6105] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./43", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6108] <... bpf resumed>) = 4 [pid 6106] close(4 [pid 6105] close(27 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] unlink("./41/cgroup" [pid 6105] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] openat(AT_FDCWD, "./43", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6105] close(28) = -1 EBADF (Bad file descriptor) [pid 5874] <... unlink resumed>) = 0 [pid 6105] close(29) = -1 EBADF (Bad file descriptor) [pid 5877] <... openat resumed>) = 3 [pid 6106] <... close resumed>) = 0 [pid 6105] exit_group(0) = ? [pid 6108] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6106] close(5 [pid 5877] newfstatat(3, "", [pid 5874] getdents64(3, [pid 6108] <... bpf resumed>) = 5 [pid 6106] <... close resumed>) = 0 [pid 6105] +++ exited with 0 +++ [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=46, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5877] getdents64(3, [pid 5874] close(3 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5874] <... close resumed>) = 0 [pid 6108] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6106] close(6 [pid 5877] umount2("./43/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] umount2("./44", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] rmdir("./41" [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] newfstatat(AT_FDCWD, "./43/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] openat(AT_FDCWD, "./44", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5877] unlink("./43/binderfs" [pid 5874] <... rmdir resumed>) = 0 [pid 6108] <... bpf resumed>) = 6 [pid 5877] <... unlink resumed>) = 0 [pid 5876] <... openat resumed>) = 3 [pid 5874] mkdir("./42", 0777 [pid 6108] perf_event_open( [pid 6106] <... close resumed>) = 0 [pid 5877] umount2("./43/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] newfstatat(3, "", [pid 5874] <... mkdir resumed>) = 0 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6108] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5877] newfstatat(AT_FDCWD, "./43/cgroup.net", [pid 5876] getdents64(3, [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6108] close(3 [pid 6106] close(7 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6106] <... close resumed>) = 0 ./strace-static-x86_64: Process 6109 attached [pid 6106] close(8 [pid 5877] unlink("./43/cgroup.net" [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6109] set_robust_list(0x5555947fb660, 24 [pid 6106] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 44 [pid 5877] <... unlink resumed>) = 0 [pid 6109] <... set_robust_list resumed>) = 0 [pid 6106] close(9 [pid 5877] umount2("./43/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] umount2("./44/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6106] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] newfstatat(AT_FDCWD, "./43/cgroup.cpu", [pid 5876] newfstatat(AT_FDCWD, "./44/binderfs", [pid 6109] chdir("./42" [pid 6106] close(10 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6109] <... chdir resumed>) = 0 [pid 6106] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./43/cgroup.cpu" [pid 5876] unlink("./44/binderfs" [pid 6109] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6106] close(11 [pid 6109] <... prctl resumed>) = 0 [pid 6106] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 6109] setpgid(0, 0 [pid 6106] close(12 [pid 5877] umount2("./43/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] <... unlink resumed>) = 0 [pid 6109] <... setpgid resumed>) = 0 [pid 6106] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] umount2("./44/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6109] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 6106] close(13 [pid 5877] newfstatat(AT_FDCWD, "./43/cgroup", [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6109] <... symlink resumed>) = 0 [pid 6106] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] newfstatat(AT_FDCWD, "./44/cgroup.net", [pid 6109] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 6106] close(14 [pid 5877] unlink("./43/cgroup" [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6109] <... symlink resumed>) = 0 [pid 6106] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 5876] unlink("./44/cgroup.net" [pid 6109] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 6106] close(15 [pid 5876] <... unlink resumed>) = 0 [pid 6106] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6106] close(16 [pid 5877] getdents64(3, [pid 5876] umount2("./44/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6106] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6106] close(17 [pid 5877] close(3 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6109] <... symlink resumed>) = 0 [pid 6106] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... close resumed>) = 0 [pid 5876] newfstatat(AT_FDCWD, "./44/cgroup.cpu", [pid 5877] rmdir("./43" [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6109] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6106] close(18 [pid 5877] <... rmdir resumed>) = 0 [pid 5876] unlink("./44/cgroup.cpu" [pid 6106] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] mkdir("./44", 0777 [pid 5876] <... unlink resumed>) = 0 [pid 6109] <... openat resumed>) = 3 [pid 6106] close(19 [pid 5877] <... mkdir resumed>) = 0 [pid 6109] write(3, "1000", 4 [pid 6106] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6109] <... write resumed>) = 4 [pid 6106] close(20 [pid 6109] close(3 [pid 6106] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6109] <... close resumed>) = 0 [pid 6106] close(21 [pid 6109] read(200, [pid 6106] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6109] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6106] close(22 [pid 6109] symlink("/dev/binderfs", "./binderfs" [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5876] umount2("./44/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6109] <... symlink resumed>) = 0 [pid 6106] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6109] write(1, "executing program\n", 18executing program [pid 6106] close(23 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 6110 attached [pid 6109] <... write resumed>) = 18 [pid 6106] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(AT_FDCWD, "./44/cgroup", [pid 6110] set_robust_list(0x5555947fb660, 24 [pid 6109] perf_event_open( [pid 6106] close(24 [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 46 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6110] <... set_robust_list resumed>) = 0 [pid 6106] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] unlink("./44/cgroup" [pid 6110] chdir("./44" [pid 6106] close(25 [pid 5876] <... unlink resumed>) = 0 [pid 6110] <... chdir resumed>) = 0 [pid 6106] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] getdents64(3, [pid 6110] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6106] close(26 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6110] <... prctl resumed>) = 0 [pid 5876] close(3 [pid 6110] setpgid(0, 0 [pid 5876] <... close resumed>) = 0 [pid 6110] <... setpgid resumed>) = 0 [pid 6108] <... close resumed>) = 0 [pid 5876] rmdir("./44" [pid 6106] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6110] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 6109] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6108] close(4 [pid 6106] close(27 [pid 5876] <... rmdir resumed>) = 0 [pid 6110] <... symlink resumed>) = 0 [pid 6109] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6106] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6110] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5876] mkdir("./45", 0777 [pid 6110] <... symlink resumed>) = 0 [pid 6108] <... close resumed>) = 0 [pid 6106] close(28 [pid 5876] <... mkdir resumed>) = 0 [pid 6110] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 6109] <... bpf resumed>) = 4 [pid 6106] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6110] <... symlink resumed>) = 0 [pid 6109] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6108] close(5 [pid 6106] close(29./strace-static-x86_64: Process 6111 attached [pid 6110] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6106] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6110] <... openat resumed>) = 3 [pid 6108] <... close resumed>) = 0 [pid 6111] set_robust_list(0x5555947fb660, 24 [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 47 [pid 6111] <... set_robust_list resumed>) = 0 [pid 6110] write(3, "1000", 4 [pid 6111] chdir("./45" [pid 6110] <... write resumed>) = 4 [pid 6110] close(3) = 0 [pid 6111] <... chdir resumed>) = 0 [pid 6110] read(200, [pid 6109] <... bpf resumed>) = 5 [pid 6111] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6110] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) executing program [pid 6108] close(6 [pid 6106] exit_group(0 [pid 6111] <... prctl resumed>) = 0 [pid 6110] symlink("/dev/binderfs", "./binderfs" [pid 6109] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6111] setpgid(0, 0 [pid 6110] <... symlink resumed>) = 0 [pid 6111] <... setpgid resumed>) = 0 [pid 6111] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 6110] write(1, "executing program\n", 18) = 18 [pid 6108] <... close resumed>) = 0 [pid 6110] perf_event_open( [pid 6108] close(7 [pid 6106] <... exit_group resumed>) = ? [pid 6111] <... symlink resumed>) = 0 [pid 6110] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6111] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu") = 0 [pid 6110] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6111] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 6110] <... bpf resumed>) = 4 [pid 6108] <... close resumed>) = 0 [pid 6111] <... symlink resumed>) = 0 [pid 6110] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6109] <... bpf resumed>) = 6 [pid 6108] close(8 [pid 6106] +++ exited with 0 +++ [pid 6111] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6109] perf_event_open( [pid 6108] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6111] <... openat resumed>) = 3 [pid 6110] <... bpf resumed>) = 5 [pid 6108] close(9 [pid 6111] write(3, "1000", 4 [pid 6110] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6109] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6108] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6111] <... write resumed>) = 4 [pid 6110] <... bpf resumed>) = 6 [pid 6109] close(3 [pid 6108] close(10 [pid 6111] close(3 [pid 6110] perf_event_open( [pid 6108] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=45, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 6111] <... close resumed>) = 0 [pid 6108] close(11 [pid 6111] read(200, [pid 6110] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6111] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5873] umount2("./43", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6111] symlink("/dev/binderfs", "./binderfs" [pid 6110] close(3 [pid 6111] <... symlink resumed>) = 0 [pid 6109] <... close resumed>) = 0 [pid 6108] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6109] close(4 [pid 6108] close(12 [pid 5873] openat(AT_FDCWD, "./43", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6109] <... close resumed>) = 0 [pid 6108] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... openat resumed>) = 3 [pid 6109] close(5 [pid 6108] close(13 [pid 6109] <... close resumed>) = 0 [pid 6108] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] newfstatat(3, "", [pid 6109] close(6 [pid 6108] close(14 [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6108] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6108] close(15 [pid 5873] getdents64(3, [pid 6108] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6108] close(16) = -1 EBADF (Bad file descriptor) [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6108] close(17 [pid 5873] umount2("./43/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6108] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6108] close(18) = -1 EBADF (Bad file descriptor) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6108] close(19 [pid 5873] newfstatat(AT_FDCWD, "./43/binderfs", [pid 6108] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6108] close(20 [pid 5873] unlink("./43/binderfs" [pid 6108] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6108] close(21) = -1 EBADF (Bad file descriptor) [pid 5873] <... unlink resumed>) = 0 [pid 6108] close(22) = -1 EBADF (Bad file descriptor) [pid 5873] umount2("./43/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6108] close(23executing program [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6111] write(1, "executing program\n", 18 [pid 6109] <... close resumed>) = 0 [pid 6108] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6111] <... write resumed>) = 18 [pid 6108] close(24 [pid 5873] newfstatat(AT_FDCWD, "./43/cgroup.net", [pid 6111] perf_event_open( [pid 6109] close(7 [pid 6108] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6108] close(25) = -1 EBADF (Bad file descriptor) [pid 6111] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6110] <... close resumed>) = 0 [pid 6109] <... close resumed>) = 0 [pid 5873] unlink("./43/cgroup.net" [pid 6111] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6110] close(4 [pid 6109] close(8 [pid 6108] close(26 [pid 6111] <... bpf resumed>) = 4 [pid 6110] <... close resumed>) = 0 [pid 6109] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6108] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... unlink resumed>) = 0 [pid 6109] close(9 [pid 6108] close(27 [pid 6111] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6109] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] umount2("./43/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6110] close(5 [pid 6109] close(10 [pid 6108] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6109] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6109] close(11 [pid 5873] newfstatat(AT_FDCWD, "./43/cgroup.cpu", [pid 6109] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6109] close(12) = -1 EBADF (Bad file descriptor) [pid 5873] unlink("./43/cgroup.cpu" [pid 6109] close(13 [pid 5873] <... unlink resumed>) = 0 [pid 6109] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6111] <... bpf resumed>) = 5 [pid 6109] close(14 [pid 5873] umount2("./43/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6109] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6109] close(15 [pid 6108] close(28 [pid 5873] newfstatat(AT_FDCWD, "./43/cgroup", [pid 6109] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6110] <... close resumed>) = 0 [pid 6108] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6109] close(16 [pid 5873] unlink("./43/cgroup" [pid 6109] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6109] close(17 [pid 5873] <... unlink resumed>) = 0 [pid 6109] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6109] close(18) = -1 EBADF (Bad file descriptor) [pid 6109] close(19 [pid 5873] getdents64(3, [pid 6109] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6109] close(20 [pid 5873] close(3 [pid 6110] close(6 [pid 6109] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6108] close(29 [pid 5873] <... close resumed>) = 0 [pid 6109] close(21 [pid 5873] rmdir("./43" [pid 6109] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... rmdir resumed>) = 0 [pid 6109] close(22 [pid 5873] mkdir("./44", 0777 [pid 6109] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... mkdir resumed>) = 0 [pid 6109] close(23) = -1 EBADF (Bad file descriptor) [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6110] <... close resumed>) = 0 [pid 6109] close(24 [pid 6111] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6108] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6110] close(7./strace-static-x86_64: Process 6112 attached [pid 6111] <... bpf resumed>) = 6 [pid 6109] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6108] exit_group(0 [pid 6112] set_robust_list(0x5555947fb660, 24 [pid 6109] close(25 [pid 6108] <... exit_group resumed>) = ? [pid 6111] perf_event_open( [pid 6112] <... set_robust_list resumed>) = 0 [pid 6109] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 46 [pid 6112] chdir("./44" [pid 6111] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6110] <... close resumed>) = 0 [pid 6109] close(26 [pid 6108] +++ exited with 0 +++ [pid 6112] <... chdir resumed>) = 0 [pid 6110] close(8 [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=45, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5875] restart_syscall(<... resuming interrupted clone ...> [pid 6109] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6112] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6110] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6109] close(27 [pid 6112] <... prctl resumed>) = 0 [pid 6109] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6110] close(9 [pid 6109] close(28 [pid 6112] setpgid(0, 0 [pid 6111] close(3 [pid 6110] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6109] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6112] <... setpgid resumed>) = 0 [pid 6110] close(10 [pid 6109] close(29 [pid 6110] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6109] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6110] close(11 [pid 6109] exit_group(0 [pid 6110] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6109] <... exit_group resumed>) = ? [pid 6112] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 6110] close(12) = -1 EBADF (Bad file descriptor) [pid 5875] <... restart_syscall resumed>) = 0 [pid 6110] close(13 [pid 6109] +++ exited with 0 +++ [pid 6112] <... symlink resumed>) = 0 [pid 6110] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6110] close(14 [pid 5875] umount2("./43", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=44, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6112] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 6110] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6112] <... symlink resumed>) = 0 [pid 6110] close(15 [pid 5875] openat(AT_FDCWD, "./43", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6112] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 6111] <... close resumed>) = 0 [pid 6110] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... openat resumed>) = 3 [pid 6111] close(4 [pid 6110] close(16 [pid 5875] newfstatat(3, "", [pid 5874] umount2("./42", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6112] <... symlink resumed>) = 0 [pid 6110] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6110] close(17) = -1 EBADF (Bad file descriptor) [pid 6111] <... close resumed>) = 0 [pid 6110] close(18) = -1 EBADF (Bad file descriptor) [pid 6112] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6110] close(19 [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5874] openat(AT_FDCWD, "./42", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6111] close(5 [pid 6110] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6110] close(20 [pid 6112] <... openat resumed>) = 3 [pid 6110] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6110] close(21) = -1 EBADF (Bad file descriptor) [pid 6110] close(22) = -1 EBADF (Bad file descriptor) [pid 6110] close(23) = -1 EBADF (Bad file descriptor) [pid 5875] getdents64(3, [pid 5874] <... openat resumed>) = 3 [pid 6110] close(24) = -1 EBADF (Bad file descriptor) [pid 6111] <... close resumed>) = 0 [pid 6110] close(25 [pid 6112] write(3, "1000", 4 [pid 6110] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5874] newfstatat(3, "", [pid 6112] <... write resumed>) = 4 [pid 6111] close(6 [pid 6110] close(26 [pid 5875] umount2("./43/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6110] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6110] close(27) = -1 EBADF (Bad file descriptor) [pid 6110] close(28) = -1 EBADF (Bad file descriptor) [pid 6110] close(29) = -1 EBADF (Bad file descriptor) [pid 6110] exit_group(0) = ? [pid 6111] <... close resumed>) = 0 [pid 6112] close(3 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] getdents64(3, [pid 6112] <... close resumed>) = 0 [pid 6111] close(7 [pid 5875] newfstatat(AT_FDCWD, "./43/binderfs", [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6112] read(200, [pid 6111] <... close resumed>) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] umount2("./42/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6112] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6111] close(8 [pid 6112] symlink("/dev/binderfs", "./binderfs" [pid 6111] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6110] +++ exited with 0 +++ [pid 5875] unlink("./43/binderfs" [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6112] <... symlink resumed>) = 0 [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=46, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 6111] close(9 [pid 5875] <... unlink resumed>) = 0 [pid 5874] newfstatat(AT_FDCWD, "./42/binderfs", [pid 6112] write(1, "executing program\n", 18 [pid 6111] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./43/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 executing program [pid 6112] <... write resumed>) = 18 [pid 6111] close(10 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] unlink("./42/binderfs" [pid 6112] perf_event_open( [pid 6111] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./44", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] newfstatat(AT_FDCWD, "./43/cgroup.net", [pid 5874] <... unlink resumed>) = 0 [pid 6111] close(11 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6112] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6111] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] openat(AT_FDCWD, "./44", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5875] unlink("./43/cgroup.net" [pid 5874] umount2("./42/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6111] close(12 [pid 5877] <... openat resumed>) = 3 [pid 6112] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6111] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6111] close(13 [pid 5877] newfstatat(3, "", [pid 5874] newfstatat(AT_FDCWD, "./42/cgroup.net", [pid 6111] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6111] close(14 [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6112] <... bpf resumed>) = 4 [pid 6111] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] unlink("./42/cgroup.net" [pid 5875] umount2("./43/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6112] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6111] close(15 [pid 5877] getdents64(3, [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] <... unlink resumed>) = 0 [pid 5875] newfstatat(AT_FDCWD, "./43/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] unlink("./43/cgroup.cpu" [pid 5874] umount2("./42/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6112] <... bpf resumed>) = 5 [pid 6111] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5875] <... unlink resumed>) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6112] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6111] close(16 [pid 5877] umount2("./44/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] umount2("./43/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] newfstatat(AT_FDCWD, "./42/cgroup.cpu", [pid 6112] <... bpf resumed>) = 6 [pid 6111] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6112] perf_event_open( [pid 6111] close(17 [pid 5877] newfstatat(AT_FDCWD, "./44/binderfs", [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6111] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6111] close(18 [pid 5877] unlink("./44/binderfs" [pid 6112] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6111] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 5875] newfstatat(AT_FDCWD, "./43/cgroup", [pid 6111] close(19 [pid 5877] umount2("./44/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6112] close(3 [pid 6111] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] unlink("./42/cgroup.cpu" [pid 6111] close(20 [pid 5877] newfstatat(AT_FDCWD, "./44/cgroup.net", [pid 6111] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] <... unlink resumed>) = 0 [pid 6111] close(21 [pid 5877] unlink("./44/cgroup.net" [pid 6111] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6111] close(22 [pid 5877] <... unlink resumed>) = 0 [pid 6111] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6111] close(23 [pid 5877] umount2("./44/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6111] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6111] close(24) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./44/cgroup.cpu", [pid 5875] unlink("./43/cgroup" [pid 5874] umount2("./42/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6111] close(25 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6111] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./44/cgroup.cpu" [pid 6111] close(26 [pid 5877] <... unlink resumed>) = 0 [pid 6111] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6111] close(27) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./44/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6111] close(28 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... unlink resumed>) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6111] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./44/cgroup", [pid 5875] getdents64(3, [pid 5874] newfstatat(AT_FDCWD, "./42/cgroup", [pid 6111] close(29 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6111] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./44/cgroup" [pid 5874] unlink("./42/cgroup" [pid 6111] exit_group(0 [pid 5875] close(3 [pid 5877] <... unlink resumed>) = 0 [pid 5874] <... unlink resumed>) = 0 [pid 5875] <... close resumed>) = 0 [pid 6111] <... exit_group resumed>) = ? [pid 5877] getdents64(3, [pid 5875] rmdir("./43" [pid 5874] getdents64(3, [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5875] <... rmdir resumed>) = 0 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5877] close(3 [pid 6112] <... close resumed>) = 0 [pid 6111] +++ exited with 0 +++ [pid 5877] <... close resumed>) = 0 [pid 5875] mkdir("./44", 0777 [pid 5874] close(3 [pid 6112] close(4 [pid 5877] rmdir("./44" [pid 6112] <... close resumed>) = 0 [pid 5877] <... rmdir resumed>) = 0 [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=47, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5875] <... mkdir resumed>) = 0 [pid 5874] <... close resumed>) = 0 [pid 5877] mkdir("./45", 0777 [pid 5876] restart_syscall(<... resuming interrupted clone ...> [pid 6112] close(5 [pid 5877] <... mkdir resumed>) = 0 [pid 5874] rmdir("./42" [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6112] <... close resumed>) = 0 [pid 5874] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 6113 attached ./strace-static-x86_64: Process 6114 attached [pid 6112] close(6 [pid 5876] <... restart_syscall resumed>) = 0 [pid 5874] mkdir("./43", 0777 [pid 6114] set_robust_list(0x5555947fb660, 24 [pid 6113] set_robust_list(0x5555947fb660, 24 [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 47 [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 46 [pid 6113] <... set_robust_list resumed>) = 0 [pid 5874] <... mkdir resumed>) = 0 [pid 6114] <... set_robust_list resumed>) = 0 [pid 5876] umount2("./45", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] openat(AT_FDCWD, "./45", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6113] chdir("./45" [pid 5876] <... openat resumed>) = 3 [pid 5876] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6112] <... close resumed>) = 0 [pid 5876] getdents64(3, ./strace-static-x86_64: Process 6115 attached [pid 6114] chdir("./44" [pid 6113] <... chdir resumed>) = 0 [pid 6112] close(7 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6115] set_robust_list(0x5555947fb660, 24 [pid 6114] <... chdir resumed>) = 0 [pid 6113] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6112] <... close resumed>) = 0 [pid 5876] umount2("./45/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 45 [pid 6115] <... set_robust_list resumed>) = 0 [pid 6114] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6113] <... prctl resumed>) = 0 [pid 6112] close(8 [pid 6115] chdir("./43" [pid 6114] <... prctl resumed>) = 0 [pid 6113] setpgid(0, 0 [pid 6112] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6115] <... chdir resumed>) = 0 [pid 6114] setpgid(0, 0 [pid 6113] <... setpgid resumed>) = 0 [pid 6112] close(9 [pid 5876] newfstatat(AT_FDCWD, "./45/binderfs", [pid 6115] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6114] <... setpgid resumed>) = 0 [pid 6113] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 6112] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6115] <... prctl resumed>) = 0 [pid 6114] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 6112] close(10 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6115] setpgid(0, 0 [pid 6113] <... symlink resumed>) = 0 [pid 6112] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] unlink("./45/binderfs" [pid 6114] <... symlink resumed>) = 0 [pid 6113] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 6112] close(11 [pid 6115] <... setpgid resumed>) = 0 [pid 6114] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 6112] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 6113] <... symlink resumed>) = 0 [pid 6115] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 6114] <... symlink resumed>) = 0 [pid 6113] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 6112] close(12 [pid 5876] umount2("./45/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6113] <... symlink resumed>) = 0 [pid 6112] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6114] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 6113] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6112] close(13 [pid 5876] newfstatat(AT_FDCWD, "./45/cgroup.net", [pid 6115] <... symlink resumed>) = 0 [pid 6114] <... symlink resumed>) = 0 [pid 6112] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6112] close(14 [pid 6114] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6113] <... openat resumed>) = 3 [pid 6112] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] unlink("./45/cgroup.net" [pid 6115] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 6114] <... openat resumed>) = 3 [pid 6113] write(3, "1000", 4 [pid 6112] close(15 [pid 5876] <... unlink resumed>) = 0 [pid 6112] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./45/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6112] close(16 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6112] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(AT_FDCWD, "./45/cgroup.cpu", [pid 6112] close(17 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6115] <... symlink resumed>) = 0 [pid 6112] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6114] write(3, "1000", 4 [pid 6113] <... write resumed>) = 4 [pid 6112] close(18 [pid 5876] unlink("./45/cgroup.cpu" [pid 6112] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 6115] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 6114] <... write resumed>) = 4 [pid 6113] close(3 [pid 6112] close(19 [pid 6114] close(3 [pid 6113] <... close resumed>) = 0 [pid 6114] <... close resumed>) = 0 [pid 6113] read(200, [pid 6112] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./45/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6115] <... symlink resumed>) = 0 [pid 6114] read(200, [pid 6113] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6112] close(20 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) executing program [pid 6115] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6114] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6113] symlink("/dev/binderfs", "./binderfs" [pid 6112] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(AT_FDCWD, "./45/cgroup", [pid 6114] symlink("/dev/binderfs", "./binderfs" [pid 6113] <... symlink resumed>) = 0 [pid 6112] close(21 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6114] <... symlink resumed>) = 0 [pid 6113] write(1, "executing program\n", 18 [pid 6112] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] unlink("./45/cgroup" [pid 6114] write(1, "executing program\n", 18 [pid 6115] <... openat resumed>) = 3 executing program [pid 6113] <... write resumed>) = 18 [pid 6112] close(22 [pid 5876] <... unlink resumed>) = 0 [pid 6115] write(3, "1000", 4 [pid 6114] <... write resumed>) = 18 [pid 6112] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6115] <... write resumed>) = 4 [pid 6113] perf_event_open( [pid 6114] perf_event_open( [pid 6112] close(23 [pid 5876] getdents64(3, [pid 6112] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6112] close(24 [pid 5876] close(3 [pid 6115] close(3 [pid 6113] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6112] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... close resumed>) = 0 [pid 6114] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6112] close(25 [pid 5876] rmdir("./45" [pid 6115] <... close resumed>) = 0 [pid 6114] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6112] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... rmdir resumed>) = 0 [pid 6115] read(200, [pid 6113] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6115] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6114] <... bpf resumed>) = 4 [pid 6112] close(26 [pid 6113] <... bpf resumed>) = 4 [pid 6115] symlink("/dev/binderfs", "./binderfs" [pid 6114] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6112] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] mkdir("./46", 0777 [pid 6115] <... symlink resumed>) = 0 [pid 6113] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6112] close(27 executing program [pid 6115] write(1, "executing program\n", 18 [pid 6112] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... mkdir resumed>) = 0 [pid 6115] <... write resumed>) = 18 [pid 6115] perf_event_open( [pid 6112] close(28) = -1 EBADF (Bad file descriptor) [pid 6113] <... bpf resumed>) = 5 [pid 6112] close(29 [pid 6115] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6112] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6115] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6114] <... bpf resumed>) = 5 [pid 6113] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6112] exit_group(0 [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6115] <... bpf resumed>) = 4 [pid 6114] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6112] <... exit_group resumed>) = ? [pid 6112] +++ exited with 0 +++ ./strace-static-x86_64: Process 6116 attached [pid 6115] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6116] set_robust_list(0x5555947fb660, 24 [pid 6114] <... bpf resumed>) = 6 [pid 6113] <... bpf resumed>) = 6 [pid 6114] perf_event_open( [pid 6116] <... set_robust_list resumed>) = 0 [pid 6114] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6113] perf_event_open( [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 48 [pid 6116] chdir("./46" [pid 6114] close(3 [pid 6113] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6115] <... bpf resumed>) = 5 [pid 6116] <... chdir resumed>) = 0 [pid 6115] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24) = 6 [pid 6113] close(3 [pid 6115] perf_event_open( [pid 6116] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6115] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6114] <... close resumed>) = 0 [pid 6115] close(3 [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=46, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 6116] <... prctl resumed>) = 0 [pid 6114] close(4 [pid 6113] <... close resumed>) = 0 [pid 6116] setpgid(0, 0 [pid 6113] close(4 [pid 6116] <... setpgid resumed>) = 0 [pid 6114] <... close resumed>) = 0 [pid 6113] <... close resumed>) = 0 [pid 5873] umount2("./44", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6116] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 6114] close(5 [pid 6113] close(5 [pid 6116] <... symlink resumed>) = 0 [pid 6114] <... close resumed>) = 0 [pid 6113] <... close resumed>) = 0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6116] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 6114] close(6 [pid 6113] close(6 [pid 5873] openat(AT_FDCWD, "./44", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6116] <... symlink resumed>) = 0 [pid 6115] <... close resumed>) = 0 [pid 5873] <... openat resumed>) = 3 [pid 6113] <... close resumed>) = 0 [pid 5873] newfstatat(3, "", [pid 6116] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 6115] close(4 [pid 6114] <... close resumed>) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6114] close(7 [pid 6113] close(7 [pid 5873] getdents64(3, [pid 6115] <... close resumed>) = 0 [pid 6114] <... close resumed>) = 0 [pid 6116] <... symlink resumed>) = 0 [pid 6115] close(5 [pid 6114] close(8 [pid 6113] <... close resumed>) = 0 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6116] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6114] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] umount2("./44/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6114] close(9 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6115] <... close resumed>) = 0 [pid 6114] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6114] close(10 [pid 6113] close(8 [pid 5873] newfstatat(AT_FDCWD, "./44/binderfs", [pid 6116] <... openat resumed>) = 3 [pid 6114] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6113] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6116] write(3, "1000", 4 [pid 6115] close(6 [pid 6114] close(11 [pid 6113] close(9 [pid 5873] unlink("./44/binderfs" [pid 6116] <... write resumed>) = 4 [pid 6114] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6113] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... unlink resumed>) = 0 [pid 6116] close(3 [pid 6114] close(12 [pid 6113] close(10 [pid 5873] umount2("./44/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6114] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6114] close(13) = -1 EBADF (Bad file descriptor) [pid 5873] newfstatat(AT_FDCWD, "./44/cgroup.net", [pid 6114] close(14 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6114] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] unlink("./44/cgroup.net" [pid 6114] close(15 [pid 6116] <... close resumed>) = 0 [pid 6115] <... close resumed>) = 0 [pid 6113] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... unlink resumed>) = 0 [pid 6116] read(200, [pid 6113] close(11 [pid 6116] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6113] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6116] symlink("/dev/binderfs", "./binderfs" [pid 6113] close(12 [pid 6114] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] umount2("./44/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6116] <... symlink resumed>) = 0 [pid 6114] close(16 [pid 6113] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6114] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6114] close(17 [pid 6113] close(13 [pid 5873] newfstatat(AT_FDCWD, "./44/cgroup.cpu", [pid 6116] write(1, "executing program\n", 18executing program [pid 6115] close(7 [pid 6114] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6113] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6116] <... write resumed>) = 18 [pid 6114] close(18 [pid 6113] close(14 [pid 6114] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] unlink("./44/cgroup.cpu" [pid 6114] close(19 [pid 6113] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... unlink resumed>) = 0 [pid 6114] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6114] close(20 [pid 5873] umount2("./44/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6114] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6115] <... close resumed>) = 0 [pid 6116] perf_event_open( [pid 6115] close(8 [pid 6114] close(21 [pid 6113] close(15 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6115] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6114] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6113] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] newfstatat(AT_FDCWD, "./44/cgroup", [pid 6116] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6115] close(9 [pid 6114] close(22 [pid 6113] close(16 [pid 6115] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6113] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6116] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6115] close(10 [pid 6114] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6113] close(17 [pid 6115] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6113] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6116] <... bpf resumed>) = 4 [pid 6115] close(11 [pid 6114] close(23 [pid 6113] close(18 [pid 5873] unlink("./44/cgroup" [pid 6115] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6114] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6113] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6115] close(12 [pid 6114] close(24 [pid 6113] close(19 [pid 6115] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6113] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6115] close(13) = -1 EBADF (Bad file descriptor) [pid 6113] close(20 [pid 6115] close(14 [pid 6113] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6115] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6115] close(15 [pid 6113] close(21 [pid 6115] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6113] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6115] close(16) = -1 EBADF (Bad file descriptor) [pid 6113] close(22 [pid 6115] close(17 [pid 6113] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6115] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6115] close(18 [pid 6113] close(23 [pid 6116] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6115] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6113] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6115] close(19 [pid 6114] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... unlink resumed>) = 0 [pid 6115] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6114] close(25 [pid 6113] close(24 [pid 6115] close(20 [pid 6113] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6115] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6113] close(25 [pid 6115] close(21) = -1 EBADF (Bad file descriptor) [pid 6113] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6115] close(22) = -1 EBADF (Bad file descriptor) [pid 6113] close(26 [pid 6115] close(23 [pid 6113] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6115] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6113] close(27 [pid 6115] close(24 [pid 6113] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6116] <... bpf resumed>) = 5 [pid 6115] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6115] close(25 [pid 6114] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6113] close(28 [pid 5873] getdents64(3, [pid 6115] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6115] close(26 [pid 6114] close(26 [pid 6113] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6115] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6114] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6115] close(27 [pid 6113] close(29 [pid 6115] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6114] close(27 [pid 6113] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] close(3 [pid 6116] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6115] close(28 [pid 6114] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6113] exit_group(0 [pid 6116] <... bpf resumed>) = 6 [pid 6115] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6114] close(28 [pid 5873] <... close resumed>) = 0 [pid 6115] close(29 [pid 6114] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6113] <... exit_group resumed>) = ? [pid 6116] perf_event_open( [pid 6115] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6114] close(29 [pid 5873] rmdir("./44" [pid 6116] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6115] exit_group(0 [pid 6114] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... rmdir resumed>) = 0 [pid 6116] close(3 [pid 6115] <... exit_group resumed>) = ? [pid 6114] exit_group(0 [pid 6113] +++ exited with 0 +++ [pid 5873] mkdir("./45", 0777 [pid 6114] <... exit_group resumed>) = ? [pid 5873] <... mkdir resumed>) = 0 [pid 6115] +++ exited with 0 +++ [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=47, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5877] restart_syscall(<... resuming interrupted clone ...> [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=45, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5874] restart_syscall(<... resuming interrupted clone ...> [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6114] +++ exited with 0 +++ [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=46, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5875] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 6117 attached [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 47 [pid 6117] set_robust_list(0x5555947fb660, 24) = 0 [pid 6117] chdir("./45") = 0 [pid 5877] <... restart_syscall resumed>) = 0 [pid 5875] <... restart_syscall resumed>) = 0 [pid 5874] <... restart_syscall resumed>) = 0 [pid 6117] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6117] setpgid(0, 0 [pid 5877] umount2("./45", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6117] <... setpgid resumed>) = 0 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] umount2("./44", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] umount2("./43", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6117] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5877] openat(AT_FDCWD, "./45", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6116] <... close resumed>) = 0 [pid 5877] newfstatat(3, "", [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5875] openat(AT_FDCWD, "./44", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5874] openat(AT_FDCWD, "./43", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6117] <... symlink resumed>) = 0 [pid 6116] close(4 [pid 5877] getdents64(3, [pid 5875] <... openat resumed>) = 3 [pid 5875] newfstatat(3, "", [pid 5874] <... openat resumed>) = 3 [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5875] getdents64(3, 0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6117] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5875] umount2("./44/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] newfstatat(3, "", [pid 6116] <... close resumed>) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] newfstatat(AT_FDCWD, "./44/binderfs", [pid 6116] close(5 [pid 5877] umount2("./45/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5875] unlink("./44/binderfs" [pid 6116] <... close resumed>) = 0 [pid 5875] <... unlink resumed>) = 0 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] umount2("./44/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] getdents64(3, [pid 6116] close(6 [pid 5877] newfstatat(AT_FDCWD, "./45/binderfs", [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] newfstatat(AT_FDCWD, "./44/cgroup.net", [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] unlink("./44/cgroup.net" [pid 6117] <... symlink resumed>) = 0 [pid 5877] unlink("./45/binderfs" [pid 5875] <... unlink resumed>) = 0 [pid 5874] umount2("./43/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] umount2("./44/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6117] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 6116] <... close resumed>) = 0 [pid 5877] <... unlink resumed>) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6116] close(7 [pid 5877] umount2("./45/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] newfstatat(AT_FDCWD, "./44/cgroup.cpu", [pid 5874] newfstatat(AT_FDCWD, "./43/binderfs", [pid 6116] <... close resumed>) = 0 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6117] <... symlink resumed>) = 0 [pid 6116] close(8 [pid 5877] newfstatat(AT_FDCWD, "./45/cgroup.net", [pid 5875] unlink("./44/cgroup.cpu" [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6117] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6116] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] <... unlink resumed>) = 0 [pid 6116] close(9 [pid 5874] unlink("./43/binderfs" [pid 6116] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6116] close(10) = -1 EBADF (Bad file descriptor) [pid 6116] close(11) = -1 EBADF (Bad file descriptor) [pid 6116] close(12) = -1 EBADF (Bad file descriptor) [pid 6116] close(13) = -1 EBADF (Bad file descriptor) [pid 6116] close(14) = -1 EBADF (Bad file descriptor) [pid 5874] <... unlink resumed>) = 0 [pid 6116] close(15) = -1 EBADF (Bad file descriptor) [pid 6116] close(16) = -1 EBADF (Bad file descriptor) [pid 6116] close(17) = -1 EBADF (Bad file descriptor) [pid 6116] close(18) = -1 EBADF (Bad file descriptor) [pid 6116] close(19) = -1 EBADF (Bad file descriptor) [pid 6116] close(20) = -1 EBADF (Bad file descriptor) [pid 6116] close(21) = -1 EBADF (Bad file descriptor) [pid 6116] close(22) = -1 EBADF (Bad file descriptor) [pid 6116] close(23) = -1 EBADF (Bad file descriptor) [pid 6116] close(24) = -1 EBADF (Bad file descriptor) [pid 6116] close(25) = -1 EBADF (Bad file descriptor) [pid 6116] close(26) = -1 EBADF (Bad file descriptor) [pid 6116] close(27) = -1 EBADF (Bad file descriptor) [pid 6116] close(28) = -1 EBADF (Bad file descriptor) [pid 6116] close(29) = -1 EBADF (Bad file descriptor) [pid 6116] exit_group(0) = ? [pid 6117] <... openat resumed>) = 3 [pid 5877] unlink("./45/cgroup.net" [pid 5875] umount2("./44/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] umount2("./43/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6117] write(3, "1000", 4) = 4 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6117] close(3 [pid 5877] <... unlink resumed>) = 0 [pid 5875] newfstatat(AT_FDCWD, "./44/cgroup", [pid 6117] <... close resumed>) = 0 [pid 5877] umount2("./45/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6117] read(200, [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6117] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) executing program [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] unlink("./44/cgroup" [pid 5874] newfstatat(AT_FDCWD, "./43/cgroup.net", [pid 6117] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5875] <... unlink resumed>) = 0 [pid 5877] newfstatat(AT_FDCWD, "./45/cgroup.cpu", [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] getdents64(3, [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] unlink("./43/cgroup.net" [pid 5877] unlink("./45/cgroup.cpu" [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6117] write(1, "executing program\n", 18 [pid 5875] close(3 [pid 6117] <... write resumed>) = 18 [pid 5874] <... unlink resumed>) = 0 [pid 6117] perf_event_open( [pid 5877] <... unlink resumed>) = 0 [pid 5875] <... close resumed>) = 0 [pid 6117] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5875] rmdir("./44" [pid 5874] umount2("./43/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6117] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6116] +++ exited with 0 +++ [pid 5877] umount2("./45/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... rmdir resumed>) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6117] <... bpf resumed>) = 4 [pid 5875] mkdir("./45", 0777 [pid 5874] newfstatat(AT_FDCWD, "./43/cgroup.cpu", [pid 6117] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=48, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5875] <... mkdir resumed>) = 0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5877] newfstatat(AT_FDCWD, "./45/cgroup", [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5874] unlink("./43/cgroup.cpu" [pid 6117] <... bpf resumed>) = 5 [pid 6117] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24) = 6 [pid 6117] perf_event_open(./strace-static-x86_64: Process 6118 attached [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] <... unlink resumed>) = 0 [pid 6117] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5877] unlink("./45/cgroup" [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 47 [pid 5876] umount2("./46", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6118] set_robust_list(0x5555947fb660, 24 [pid 5874] umount2("./43/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6118] <... set_robust_list resumed>) = 0 [pid 6117] close(3 [pid 5877] <... unlink resumed>) = 0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6118] chdir("./45" [pid 5876] openat(AT_FDCWD, "./46", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5877] getdents64(3, [pid 5874] newfstatat(AT_FDCWD, "./43/cgroup", [pid 6118] <... chdir resumed>) = 0 [pid 5876] <... openat resumed>) = 3 [pid 6118] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6118] <... prctl resumed>) = 0 [pid 5877] close(3 [pid 5876] newfstatat(3, "", [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6118] setpgid(0, 0 [pid 5877] <... close resumed>) = 0 [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6118] <... setpgid resumed>) = 0 [pid 5877] rmdir("./45" [pid 5876] getdents64(3, [pid 5874] unlink("./43/cgroup") = 0 [pid 6118] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5877] <... rmdir resumed>) = 0 [pid 6118] <... symlink resumed>) = 0 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5874] getdents64(3, [pid 5877] mkdir("./46", 0777 [pid 5876] umount2("./46/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6118] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5877] <... mkdir resumed>) = 0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] close(3) = 0 [pid 6118] <... symlink resumed>) = 0 [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5876] newfstatat(AT_FDCWD, "./46/binderfs", [pid 5874] rmdir("./43" [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6118] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5876] unlink("./46/binderfs" [pid 5874] <... rmdir resumed>) = 0 [pid 5876] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 6119 attached [pid 6118] <... symlink resumed>) = 0 [pid 5874] mkdir("./44", 0777 [pid 6119] set_robust_list(0x5555947fb660, 24 [pid 6118] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 48 [pid 6118] <... openat resumed>) = 3 [pid 5876] umount2("./46/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6119] <... set_robust_list resumed>) = 0 [pid 5874] <... mkdir resumed>) = 0 [pid 6119] chdir("./46" [pid 6118] write(3, "1000", 4 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6119] <... chdir resumed>) = 0 [pid 6118] <... write resumed>) = 4 [pid 5876] newfstatat(AT_FDCWD, "./46/cgroup.net", [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6119] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6118] close(3 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6119] <... prctl resumed>) = 0 [pid 6118] <... close resumed>) = 0 [pid 6119] setpgid(0, 0 [pid 6118] read(200, ./strace-static-x86_64: Process 6120 attached [pid 6119] <... setpgid resumed>) = 0 [pid 6118] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5876] unlink("./46/cgroup.net" [pid 6119] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 6118] symlink("/dev/binderfs", "./binderfs" [pid 5876] <... unlink resumed>) = 0 [pid 6120] set_robust_list(0x5555947fb660, 24 [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 46 [pid 5876] umount2("./46/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6120] <... set_robust_list resumed>) = 0 [pid 6119] <... symlink resumed>) = 0 [pid 6118] <... symlink resumed>) = 0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6119] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 6118] write(1, "executing program\n", 18executing program [pid 6119] <... symlink resumed>) = 0 [pid 6118] <... write resumed>) = 18 [pid 6119] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 6118] perf_event_open( [pid 6119] <... symlink resumed>) = 0 [pid 6119] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6120] chdir("./44" [pid 6118] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6117] <... close resumed>) = 0 [pid 5876] newfstatat(AT_FDCWD, "./46/cgroup.cpu", [pid 6120] <... chdir resumed>) = 0 [pid 6117] close(4 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6120] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5876] unlink("./46/cgroup.cpu" [pid 6120] <... prctl resumed>) = 0 [pid 6119] <... openat resumed>) = 3 [pid 6120] setpgid(0, 0 [pid 6117] <... close resumed>) = 0 [pid 5876] <... unlink resumed>) = 0 [pid 6120] <... setpgid resumed>) = 0 [pid 6118] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6117] close(5 [pid 5876] umount2("./46/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6120] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 6119] write(3, "1000", 4 [pid 6118] <... bpf resumed>) = 4 [pid 6117] <... close resumed>) = 0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6119] <... write resumed>) = 4 [pid 6120] <... symlink resumed>) = 0 [pid 6119] close(3 [pid 6118] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6117] close(6 [pid 5876] newfstatat(AT_FDCWD, "./46/cgroup", [pid 6120] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 6119] <... close resumed>) = 0 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] unlink("./46/cgroup" [pid 6119] read(200, [pid 5876] <... unlink resumed>) = 0 [pid 6119] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5876] getdents64(3, 0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5876] close(3) = 0 [pid 5876] rmdir("./46") = 0 [pid 5876] mkdir("./47", 0777 [pid 6120] <... symlink resumed>) = 0 [pid 6119] symlink("/dev/binderfs", "./binderfs" [pid 6118] <... bpf resumed>) = 5 [pid 6117] <... close resumed>) = 0 [pid 6120] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5876] <... mkdir resumed>) = 0 [pid 6119] <... symlink resumed>) = 0 [pid 6117] close(7 [pid 6120] <... symlink resumed>) = 0 [pid 6119] write(1, "executing program\n", 18 [pid 6118] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6117] <... close resumed>) = 0 [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program [pid 6119] <... write resumed>) = 18 [pid 6117] close(8 [pid 6119] perf_event_open( [pid 6117] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6120] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6119] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6118] <... bpf resumed>) = 6 [pid 6118] perf_event_open( [pid 6117] close(9./strace-static-x86_64: Process 6121 attached [pid 6120] <... openat resumed>) = 3 [pid 6119] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6117] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6121] set_robust_list(0x5555947fb660, 24 [pid 6120] write(3, "1000", 4 [pid 6119] <... bpf resumed>) = 4 [pid 6118] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6117] close(10 [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 49 [pid 6121] <... set_robust_list resumed>) = 0 [pid 6120] <... write resumed>) = 4 [pid 6119] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6117] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6120] close(3 [pid 6118] close(3 [pid 6121] chdir("./47" [pid 6120] <... close resumed>) = 0 [pid 6118] <... close resumed>) = 0 [pid 6117] close(11 [pid 6121] <... chdir resumed>) = 0 [pid 6120] read(200, [pid 6118] close(4 [pid 6121] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6120] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6119] <... bpf resumed>) = 5 [pid 6117] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6121] <... prctl resumed>) = 0 [pid 6120] symlink("/dev/binderfs", "./binderfs" [pid 6118] <... close resumed>) = 0 [pid 6117] close(12 [pid 6119] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6121] setpgid(0, 0 [pid 6120] <... symlink resumed>) = 0 [pid 6119] <... bpf resumed>) = 6 [pid 6117] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6121] <... setpgid resumed>) = 0 [pid 6120] write(1, "executing program\n", 18 executing program [pid 6119] perf_event_open( [pid 6118] close(5 [pid 6117] close(13) = -1 EBADF (Bad file descriptor) [pid 6120] <... write resumed>) = 18 [pid 6117] close(14 [pid 6118] <... close resumed>) = 0 [pid 6117] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6120] perf_event_open( [pid 6119] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6117] close(15 [pid 6121] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 6120] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6119] close(3 [pid 6118] close(6 [pid 6117] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6121] <... symlink resumed>) = 0 [pid 6120] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6117] close(16) = -1 EBADF (Bad file descriptor) [pid 6117] close(17) = -1 EBADF (Bad file descriptor) [pid 6117] close(18) = -1 EBADF (Bad file descriptor) [pid 6117] close(19) = -1 EBADF (Bad file descriptor) [pid 6117] close(20) = -1 EBADF (Bad file descriptor) [pid 6117] close(21) = -1 EBADF (Bad file descriptor) [pid 6117] close(22) = -1 EBADF (Bad file descriptor) [pid 6117] close(23) = -1 EBADF (Bad file descriptor) [pid 6117] close(24) = -1 EBADF (Bad file descriptor) [pid 6121] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 6120] <... bpf resumed>) = 4 [pid 6119] <... close resumed>) = 0 [pid 6118] <... close resumed>) = 0 [pid 6121] <... symlink resumed>) = 0 [pid 6119] close(4 [pid 6117] close(25 [pid 6121] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 6120] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6119] <... close resumed>) = 0 [pid 6118] close(7 [pid 6121] <... symlink resumed>) = 0 [pid 6117] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6119] close(5 [pid 6121] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6117] close(26) = -1 EBADF (Bad file descriptor) [pid 6121] <... openat resumed>) = 3 [pid 6119] <... close resumed>) = 0 [pid 6118] <... close resumed>) = 0 [pid 6117] close(27 [pid 6121] write(3, "1000", 4 [pid 6119] close(6 [pid 6121] <... write resumed>) = 4 [pid 6120] <... bpf resumed>) = 5 [pid 6118] close(8 [pid 6117] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6121] close(3 [pid 6120] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6118] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6117] close(28 [pid 6118] close(9 [pid 6117] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6118] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6118] close(10 [pid 6117] close(29 [pid 6118] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6117] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6118] close(11 [pid 6117] exit_group(0 [pid 6118] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6121] <... close resumed>) = 0 [pid 6118] close(12) = -1 EBADF (Bad file descriptor) [pid 6118] close(13 [pid 6117] <... exit_group resumed>) = ? [pid 6120] <... bpf resumed>) = 6 [pid 6118] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6121] read(200, [pid 6120] perf_event_open( [pid 6118] close(14 [pid 6121] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6119] <... close resumed>) = 0 [pid 6121] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6119] close(7 [pid 6120] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6121] write(1, "executing program\n", 18 [pid 6119] <... close resumed>) = 0 [pid 6118] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6117] +++ exited with 0 +++ executing program [pid 6121] <... write resumed>) = 18 [pid 6120] close(3 [pid 6119] close(8 [pid 6118] close(15 [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=47, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5873] umount2("./45", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5873] openat(AT_FDCWD, "./45", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5873] newfstatat(3, "", [pid 6121] perf_event_open( [pid 6119] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6118] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6118] close(16) = -1 EBADF (Bad file descriptor) [pid 6119] close(9 [pid 6118] close(17 [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6118] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6119] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] getdents64(3, [pid 6118] close(18 [pid 6119] close(10 [pid 6118] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6119] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6118] close(19 [pid 5873] umount2("./45/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6120] <... close resumed>) = 0 [pid 6119] close(11 [pid 6118] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6121] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6120] close(4 [pid 6118] close(20 [pid 6121] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6120] <... close resumed>) = 0 [pid 6119] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6118] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] newfstatat(AT_FDCWD, "./45/binderfs", [pid 6120] close(5 [pid 6119] close(12 [pid 6121] <... bpf resumed>) = 4 [pid 6120] <... close resumed>) = 0 [pid 6119] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6118] close(21 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6121] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6120] close(6 [pid 6119] close(13 [pid 6118] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] unlink("./45/binderfs" [pid 6120] <... close resumed>) = 0 [pid 6118] close(22) = -1 EBADF (Bad file descriptor) [pid 6118] close(23) = -1 EBADF (Bad file descriptor) [pid 6118] close(24 [pid 6120] close(7 [pid 6118] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6120] <... close resumed>) = 0 [pid 6120] close(8 [pid 6119] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6118] close(25 [pid 5873] <... unlink resumed>) = 0 [pid 6119] close(14 [pid 6120] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6119] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6118] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] umount2("./45/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6120] close(9 [pid 6119] close(15 [pid 6118] close(26 [pid 6120] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6119] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6118] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6119] close(16 [pid 5873] newfstatat(AT_FDCWD, "./45/cgroup.net", [pid 6119] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6120] close(10 [pid 6119] close(17 [pid 6118] close(27 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6120] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6119] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6118] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6120] close(11 [pid 6118] close(28 [pid 6120] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6119] close(18 [pid 6118] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] unlink("./45/cgroup.net" [pid 6121] <... bpf resumed>) = 5 [pid 6120] close(12 [pid 6118] close(29 [pid 6120] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6118] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6121] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6120] close(13 [pid 6119] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6118] exit_group(0 [pid 6120] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6118] <... exit_group resumed>) = ? [pid 5873] <... unlink resumed>) = 0 [pid 6120] close(14 [pid 6119] close(19 [pid 6121] <... bpf resumed>) = 6 [pid 6119] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] umount2("./45/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6121] perf_event_open( [pid 6119] close(20 [pid 6118] +++ exited with 0 +++ [pid 6120] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6121] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6120] close(15 [pid 6119] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6120] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=47, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5873] newfstatat(AT_FDCWD, "./45/cgroup.cpu", [pid 6121] close(3 [pid 6120] close(16 [pid 5875] restart_syscall(<... resuming interrupted clone ...> [pid 6120] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6119] close(21 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] <... restart_syscall resumed>) = 0 [pid 6120] close(17 [pid 6119] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6120] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6119] close(22 [pid 6120] close(18 [pid 6119] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] unlink("./45/cgroup.cpu" [pid 6120] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6119] close(23 [pid 5875] umount2("./45", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6120] close(19 [pid 6119] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... unlink resumed>) = 0 [pid 6120] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6119] close(24 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6120] close(20 [pid 6119] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] openat(AT_FDCWD, "./45", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5873] umount2("./45/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6120] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6119] close(25 [pid 5875] <... openat resumed>) = 3 [pid 6120] close(21 [pid 6119] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6120] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6119] close(26 [pid 5875] newfstatat(3, "", [pid 5873] newfstatat(AT_FDCWD, "./45/cgroup", [pid 6120] close(22 [pid 6119] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6120] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6119] close(27 [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6120] close(23 [pid 6119] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6120] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6119] close(28 [pid 5875] getdents64(3, [pid 5873] unlink("./45/cgroup" [pid 6120] close(24 [pid 6119] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5873] <... unlink resumed>) = 0 [pid 6120] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6119] close(29 [pid 6120] close(25 [pid 6119] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./45/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] getdents64(3, [pid 6120] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6119] exit_group(0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5875] newfstatat(AT_FDCWD, "./45/binderfs", [pid 6120] close(26 [pid 6119] <... exit_group resumed>) = ? [pid 5873] close(3 [pid 6121] <... close resumed>) = 0 [pid 6120] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] unlink("./45/binderfs" [pid 5873] <... close resumed>) = 0 [pid 6120] close(27 [pid 6121] close(4 [pid 6120] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6119] +++ exited with 0 +++ [pid 5875] <... unlink resumed>) = 0 [pid 5873] rmdir("./45" [pid 6121] <... close resumed>) = 0 [pid 6120] close(28 [pid 5875] umount2("./45/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... rmdir resumed>) = 0 [pid 6120] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=48, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] mkdir("./46", 0777 [pid 6121] close(5 [pid 6120] close(29 [pid 5877] umount2("./46", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] newfstatat(AT_FDCWD, "./45/cgroup.net", [pid 5873] <... mkdir resumed>) = 0 [pid 6120] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6121] <... close resumed>) = 0 [pid 6120] exit_group(0 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6121] close(6 [pid 6120] <... exit_group resumed>) = ? [pid 5877] openat(AT_FDCWD, "./46", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 6122 attached [pid 6121] <... close resumed>) = 0 [pid 5875] unlink("./45/cgroup.net") = 0 [pid 6121] close(7 [pid 5875] umount2("./45/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6122] set_robust_list(0x5555947fb660, 24 [pid 6121] <... close resumed>) = 0 [pid 6120] +++ exited with 0 +++ [pid 5877] <... openat resumed>) = 3 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 48 [pid 6122] <... set_robust_list resumed>) = 0 [pid 6121] close(8 [pid 5875] newfstatat(AT_FDCWD, "./45/cgroup.cpu", [pid 6121] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6122] chdir("./46" [pid 6121] close(9 [pid 6122] <... chdir resumed>) = 0 [pid 6121] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=46, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6122] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6121] close(10 [pid 5877] newfstatat(3, "", [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] restart_syscall(<... resuming interrupted clone ...> [pid 6122] <... prctl resumed>) = 0 [pid 6121] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5874] <... restart_syscall resumed>) = 0 [pid 6122] setpgid(0, 0 [pid 6121] close(11 [pid 5875] unlink("./45/cgroup.cpu" [pid 5877] getdents64(3, [pid 6122] <... setpgid resumed>) = 0 [pid 6121] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6121] close(12 [pid 5875] <... unlink resumed>) = 0 [pid 6121] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6121] close(13) = -1 EBADF (Bad file descriptor) [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6121] close(14) = -1 EBADF (Bad file descriptor) [pid 6121] close(15) = -1 EBADF (Bad file descriptor) [pid 6122] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 6121] close(16 [pid 5875] umount2("./45/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] umount2("./44", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6121] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./46/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6121] close(17) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6121] close(18 [pid 5875] newfstatat(AT_FDCWD, "./45/cgroup", [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6121] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6121] close(19 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6121] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./46/binderfs", [pid 5874] openat(AT_FDCWD, "./44", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6122] <... symlink resumed>) = 0 [pid 6121] close(20) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] unlink("./45/cgroup" [pid 6121] close(21) = -1 EBADF (Bad file descriptor) [pid 6121] close(22 [pid 5874] <... openat resumed>) = 3 [pid 6122] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 6121] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6121] close(23) = -1 EBADF (Bad file descriptor) [pid 6121] close(24) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./46/binderfs" [pid 5874] newfstatat(3, "", [pid 6121] close(25 [pid 5875] <... unlink resumed>) = 0 [pid 6121] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6121] close(26) = -1 EBADF (Bad file descriptor) [pid 6122] <... symlink resumed>) = 0 [pid 6121] close(27) = -1 EBADF (Bad file descriptor) [pid 6121] close(28 [pid 5877] <... unlink resumed>) = 0 [pid 6122] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 6121] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] getdents64(3, [pid 6121] close(29 [pid 5877] umount2("./46/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6121] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6122] <... symlink resumed>) = 0 [pid 6121] exit_group(0 [pid 5877] newfstatat(AT_FDCWD, "./46/cgroup.net", [pid 5875] close(3 [pid 5874] getdents64(3, [pid 6122] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] <... close resumed>) = 0 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6122] <... openat resumed>) = 3 [pid 6121] <... exit_group resumed>) = ? [pid 5874] umount2("./44/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6122] write(3, "1000", 4 [pid 5877] unlink("./46/cgroup.net" [pid 5875] rmdir("./45" [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6122] <... write resumed>) = 4 [pid 5877] <... unlink resumed>) = 0 [pid 5875] <... rmdir resumed>) = 0 [pid 5874] newfstatat(AT_FDCWD, "./44/binderfs", [pid 6122] close(3) = 0 [pid 5877] umount2("./46/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] mkdir("./46", 0777 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6122] read(200, [pid 6121] +++ exited with 0 +++ [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... mkdir resumed>) = 0 [pid 5874] unlink("./44/binderfs" [pid 6122] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5877] newfstatat(AT_FDCWD, "./46/cgroup.cpu", [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=49, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6122] symlink("/dev/binderfs", "./binderfs" [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 executing program [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5874] <... unlink resumed>) = 0 [pid 6122] <... symlink resumed>) = 0 [pid 6122] write(1, "executing program\n", 18 [pid 5877] unlink("./46/cgroup.cpu" [pid 5874] umount2("./44/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] umount2("./47", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6122] <... write resumed>) = 18 [pid 5877] <... unlink resumed>) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] newfstatat(AT_FDCWD, "./44/cgroup.net", ./strace-static-x86_64: Process 6123 attached [pid 6122] perf_event_open( [pid 5877] umount2("./46/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] openat(AT_FDCWD, "./47", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6123] set_robust_list(0x5555947fb660, 24 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] <... openat resumed>) = 3 [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 48 [pid 5874] unlink("./44/cgroup.net" [pid 6122] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6123] <... set_robust_list resumed>) = 0 [pid 5877] newfstatat(AT_FDCWD, "./46/cgroup", [pid 5876] newfstatat(3, "", [pid 6123] chdir("./46" [pid 6122] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5874] <... unlink resumed>) = 0 [pid 6123] <... chdir resumed>) = 0 [pid 6122] <... bpf resumed>) = 4 [pid 5877] unlink("./46/cgroup" [pid 5876] getdents64(3, [pid 6123] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6122] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5877] <... unlink resumed>) = 0 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5874] umount2("./44/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6123] <... prctl resumed>) = 0 [pid 6123] setpgid(0, 0 [pid 5877] getdents64(3, [pid 5876] umount2("./47/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] close(3 [pid 6123] <... setpgid resumed>) = 0 [pid 6122] <... bpf resumed>) = 5 [pid 5876] newfstatat(AT_FDCWD, "./47/binderfs", [pid 5874] newfstatat(AT_FDCWD, "./44/cgroup.cpu", [pid 6123] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 6122] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5877] <... close resumed>) = 0 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6122] <... bpf resumed>) = 6 [pid 5877] rmdir("./46" [pid 6122] perf_event_open( [pid 5877] <... rmdir resumed>) = 0 [pid 5876] unlink("./47/binderfs" [pid 6123] <... symlink resumed>) = 0 [pid 6122] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5877] mkdir("./47", 0777 [pid 5876] <... unlink resumed>) = 0 [pid 6123] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 6122] close(3 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5877] <... mkdir resumed>) = 0 [pid 5876] umount2("./47/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] unlink("./44/cgroup.cpu" [pid 6123] <... symlink resumed>) = 0 [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] <... unlink resumed>) = 0 [pid 6123] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5876] newfstatat(AT_FDCWD, "./47/cgroup.net", [pid 5874] umount2("./44/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6123] <... symlink resumed>) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] newfstatat(AT_FDCWD, "./44/cgroup", [pid 6123] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6123] <... openat resumed>) = 3 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] unlink("./44/cgroup" [pid 5876] unlink("./47/cgroup.net" [pid 6123] write(3, "1000", 4 [pid 5876] <... unlink resumed>) = 0 [pid 5874] <... unlink resumed>) = 0 [pid 6123] <... write resumed>) = 4 [pid 5876] umount2("./47/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] getdents64(3, [pid 6123] close(3 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6123] <... close resumed>) = 0 [pid 5876] newfstatat(AT_FDCWD, "./47/cgroup.cpu", [pid 5874] close(3 [pid 6123] read(200, [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] <... close resumed>) = 0 [pid 6123] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5876] unlink("./47/cgroup.cpu" [pid 6123] symlink("/dev/binderfs", "./binderfs" [pid 5874] rmdir("./44" [pid 6123] <... symlink resumed>) = 0 [pid 5876] <... unlink resumed>) = 0 [pid 5874] <... rmdir resumed>) = 0 executing program ./strace-static-x86_64: Process 6124 attached [pid 6123] write(1, "executing program\n", 18 [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 49 [pid 5876] umount2("./47/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6124] set_robust_list(0x5555947fb660, 24 [pid 6123] <... write resumed>) = 18 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] mkdir("./45", 0777 [pid 6124] <... set_robust_list resumed>) = 0 [pid 6123] perf_event_open( [pid 5876] newfstatat(AT_FDCWD, "./47/cgroup", [pid 5874] <... mkdir resumed>) = 0 [pid 6124] chdir("./47" [pid 6122] <... close resumed>) = 0 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6124] <... chdir resumed>) = 0 [pid 6122] close(4 [pid 5876] unlink("./47/cgroup" [pid 6124] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5876] <... unlink resumed>) = 0 [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6124] <... prctl resumed>) = 0 [pid 6122] <... close resumed>) = 0 [pid 5876] getdents64(3, [pid 6124] setpgid(0, 0) = 0 [pid 6123] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6122] close(5 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6124] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5876] close(3) = 0 ./strace-static-x86_64: Process 6125 attached [pid 6124] <... symlink resumed>) = 0 [pid 6123] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6122] <... close resumed>) = 0 [pid 5876] rmdir("./47" [pid 6125] set_robust_list(0x5555947fb660, 24 [pid 6124] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 6123] <... bpf resumed>) = 4 [pid 6122] close(6 [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 47 [pid 6123] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5876] <... rmdir resumed>) = 0 [pid 6125] <... set_robust_list resumed>) = 0 [pid 6124] <... symlink resumed>) = 0 [pid 6123] <... bpf resumed>) = 5 [pid 6122] <... close resumed>) = 0 [pid 5876] mkdir("./48", 0777 [pid 6125] chdir("./45" [pid 6124] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 6125] <... chdir resumed>) = 0 [pid 6123] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6122] close(7 [pid 5876] <... mkdir resumed>) = 0 [pid 6125] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6124] <... symlink resumed>) = 0 [pid 6123] <... bpf resumed>) = 6 [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6125] <... prctl resumed>) = 0 [pid 6124] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6122] <... close resumed>) = 0 [pid 6124] <... openat resumed>) = 3 [pid 6123] perf_event_open(./strace-static-x86_64: Process 6126 attached [pid 6125] setpgid(0, 0 [pid 6124] write(3, "1000", 4 [pid 6122] close(8 [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 50 [pid 6125] <... setpgid resumed>) = 0 [pid 6124] <... write resumed>) = 4 [pid 6122] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6126] set_robust_list(0x5555947fb660, 24 [pid 6123] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6126] <... set_robust_list resumed>) = 0 [pid 6125] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 6124] close(3 [pid 6122] close(9 [pid 6126] chdir("./48" [pid 6125] <... symlink resumed>) = 0 [pid 6124] <... close resumed>) = 0 [pid 6123] close(3 [pid 6122] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6126] <... chdir resumed>) = 0 [pid 6125] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 6124] read(200, [pid 6122] close(10 [pid 6126] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6124] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6122] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6126] <... prctl resumed>) = 0 [pid 6122] close(11 [pid 6126] setpgid(0, 0 [pid 6124] symlink("/dev/binderfs", "./binderfs" [pid 6122] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6124] <... symlink resumed>) = 0 [pid 6126] <... setpgid resumed>) = 0 [pid 6122] close(12 [pid 6125] <... symlink resumed>) = 0 [pid 6125] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 6124] write(1, "executing program\n", 18executing program [pid 6126] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 6124] <... write resumed>) = 18 [pid 6122] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6126] <... symlink resumed>) = 0 [pid 6122] close(13) = -1 EBADF (Bad file descriptor) [pid 6124] perf_event_open( [pid 6122] close(14 [pid 6126] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 6122] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6126] <... symlink resumed>) = 0 [pid 6125] <... symlink resumed>) = 0 [pid 6122] close(15 [pid 6125] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6122] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6126] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 6122] close(16 [pid 6126] <... symlink resumed>) = 0 [pid 6125] <... openat resumed>) = 3 [pid 6122] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6122] close(17 [pid 6125] write(3, "1000", 4 [pid 6122] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6125] <... write resumed>) = 4 [pid 6126] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6125] close(3 [pid 6122] close(18 [pid 6126] <... openat resumed>) = 3 [pid 6125] <... close resumed>) = 0 [pid 6122] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6126] write(3, "1000", 4 [pid 6122] close(19 [pid 6126] <... write resumed>) = 4 [pid 6122] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6126] close(3 [pid 6122] close(20 [pid 6126] <... close resumed>) = 0 [pid 6122] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6126] read(200, 0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6122] close(21 [pid 6126] symlink("/dev/binderfs", "./binderfs" [pid 6122] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6126] <... symlink resumed>) = 0 [pid 6122] close(22) = -1 EBADF (Bad file descriptor) executing program [pid 6126] write(1, "executing program\n", 18 [pid 6122] close(23 [pid 6125] read(200, 0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6125] symlink("/dev/binderfs", "./binderfs" [pid 6126] <... write resumed>) = 18 [pid 6122] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6126] perf_event_open( [pid 6125] <... symlink resumed>) = 0 [pid 6122] close(24) = -1 EBADF (Bad file descriptor) executing program [pid 6125] write(1, "executing program\n", 18 [pid 6122] close(25 [pid 6125] <... write resumed>) = 18 [pid 6122] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6122] close(26) = -1 EBADF (Bad file descriptor) [pid 6125] perf_event_open( [pid 6122] close(27) = -1 EBADF (Bad file descriptor) [pid 6122] close(28) = -1 EBADF (Bad file descriptor) [pid 6122] close(29) = -1 EBADF (Bad file descriptor) [pid 6122] exit_group(0) = ? [pid 6126] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6125] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6124] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6123] <... close resumed>) = 0 [pid 6122] +++ exited with 0 +++ [pid 6125] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6126] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6124] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6123] close(4 [pid 6126] <... bpf resumed>) = 4 [pid 6125] <... bpf resumed>) = 4 [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=48, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6126] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6125] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6124] <... bpf resumed>) = 4 [pid 6123] <... close resumed>) = 0 [pid 5873] umount2("./46", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6126] <... bpf resumed>) = 5 [pid 6124] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6126] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6125] <... bpf resumed>) = 5 [pid 6123] close(5 [pid 6124] <... bpf resumed>) = 5 [pid 5873] openat(AT_FDCWD, "./46", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6126] <... bpf resumed>) = 6 [pid 6123] <... close resumed>) = 0 [pid 6126] perf_event_open( [pid 6124] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6123] close(6 [pid 5873] <... openat resumed>) = 3 [pid 6126] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6125] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6124] <... bpf resumed>) = 6 [pid 6126] close(3 [pid 6125] <... bpf resumed>) = 6 [pid 6124] perf_event_open( [pid 6123] <... close resumed>) = 0 [pid 5873] newfstatat(3, "", [pid 6126] <... close resumed>) = 0 [pid 6125] perf_event_open( [pid 6124] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6126] close(4 [pid 6124] close(3 [pid 6123] close(7 [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6126] <... close resumed>) = 0 [pid 6125] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6124] <... close resumed>) = 0 [pid 6123] <... close resumed>) = 0 [pid 5873] getdents64(3, [pid 6123] close(8) = -1 EBADF (Bad file descriptor) [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6125] close(3 [pid 6126] close(5 [pid 6124] close(4 [pid 6123] close(9 [pid 5873] umount2("./46/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6126] <... close resumed>) = 0 [pid 6124] <... close resumed>) = 0 [pid 6126] close(6 [pid 6124] close(5) = 0 [pid 6123] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6123] close(10 [pid 5873] newfstatat(AT_FDCWD, "./46/binderfs", [pid 6126] <... close resumed>) = 0 [pid 6124] close(6 [pid 6123] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6126] close(7 [pid 6123] close(11 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6123] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] unlink("./46/binderfs" [pid 6126] <... close resumed>) = 0 [pid 6124] <... close resumed>) = 0 [pid 6126] close(8 [pid 6124] close(7 [pid 6126] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6124] <... close resumed>) = 0 [pid 6123] close(12 [pid 5873] <... unlink resumed>) = 0 [pid 6123] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6126] close(9 [pid 6124] close(8 [pid 6123] close(13 [pid 5873] umount2("./46/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6126] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6124] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6123] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6126] close(10 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6123] close(14 [pid 6126] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6124] close(9 [pid 6126] close(11 [pid 6124] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6126] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6124] close(10 [pid 6126] close(12 [pid 6124] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6126] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6124] close(11 [pid 6126] close(13 [pid 6124] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6126] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6124] close(12 [pid 6126] close(14) = -1 EBADF (Bad file descriptor) [pid 6124] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6126] close(15 [pid 6124] close(13 [pid 6126] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6124] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6126] close(16) = -1 EBADF (Bad file descriptor) [pid 6124] close(14 [pid 6126] close(17 [pid 6124] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6126] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6126] close(18 [pid 6124] close(15 [pid 6126] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6124] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6126] close(19 [pid 6124] close(16 [pid 6126] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6123] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] newfstatat(AT_FDCWD, "./46/cgroup.net", [pid 6123] close(15 [pid 6126] close(20 [pid 6124] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6126] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6124] close(17 [pid 6126] close(21 [pid 6124] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6123] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6126] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6124] close(18 [pid 6123] close(16 [pid 5873] unlink("./46/cgroup.net" [pid 6126] close(22 [pid 6124] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6123] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6126] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6124] close(19 [pid 6126] close(23 [pid 6124] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6123] close(17 [pid 6126] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6124] close(20 [pid 6123] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6126] close(24 [pid 6124] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6123] close(18 [pid 5873] <... unlink resumed>) = 0 [pid 6126] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6124] close(21 [pid 6126] close(25) = -1 EBADF (Bad file descriptor) [pid 6124] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6126] close(26 [pid 6124] close(22 [pid 6123] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] umount2("./46/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6123] close(19 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6123] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6126] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6124] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] newfstatat(AT_FDCWD, "./46/cgroup.cpu", [pid 6126] close(27 [pid 6124] close(23 [pid 6123] close(20 [pid 6126] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6124] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6123] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6126] close(28 [pid 6124] close(24 [pid 6123] close(21 [pid 5873] unlink("./46/cgroup.cpu" [pid 6126] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6125] <... close resumed>) = 0 [pid 6124] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6123] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6126] close(29 [pid 6125] close(4 [pid 6124] close(25 [pid 6123] close(22 [pid 6126] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6125] <... close resumed>) = 0 [pid 6124] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6123] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... unlink resumed>) = 0 [pid 6123] close(23) = -1 EBADF (Bad file descriptor) [pid 5873] umount2("./46/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6123] close(24 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6126] exit_group(0 [pid 6125] close(5 [pid 6124] close(26 [pid 6123] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] newfstatat(AT_FDCWD, "./46/cgroup", [pid 6126] <... exit_group resumed>) = ? [pid 6125] <... close resumed>) = 0 [pid 6124] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6123] close(25 [pid 6125] close(6 [pid 6123] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6124] close(27 [pid 6123] close(26 [pid 5873] unlink("./46/cgroup" [pid 6123] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... unlink resumed>) = 0 [pid 6123] close(27 [pid 5873] getdents64(3, [pid 6123] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6123] close(28 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6125] <... close resumed>) = 0 [pid 6124] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6123] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6124] close(28 [pid 6125] close(7 [pid 6124] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6123] close(29 [pid 5873] close(3 [pid 6126] +++ exited with 0 +++ [pid 6125] <... close resumed>) = 0 [pid 6124] close(29 [pid 6123] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... close resumed>) = 0 [pid 6125] close(8 [pid 6124] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6123] exit_group(0 [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=50, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5873] rmdir("./46" [pid 6125] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6124] exit_group(0 [pid 6123] <... exit_group resumed>) = ? [pid 5876] restart_syscall(<... resuming interrupted clone ...> [pid 5873] <... rmdir resumed>) = 0 [pid 6125] close(9 [pid 6124] <... exit_group resumed>) = ? [pid 5873] mkdir("./47", 0777) = 0 [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6125] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6124] +++ exited with 0 +++ [pid 6123] +++ exited with 0 +++ [pid 5876] <... restart_syscall resumed>) = 0 [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=48, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6125] close(10./strace-static-x86_64: Process 6127 attached [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=49, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5876] umount2("./48", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6127] set_robust_list(0x5555947fb660, 24 [pid 6125] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6127] <... set_robust_list resumed>) = 0 [pid 6125] close(11 [pid 5876] openat(AT_FDCWD, "./48", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 49 [pid 6127] chdir("./47" [pid 6125] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./47", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] <... openat resumed>) = 3 [pid 5875] umount2("./46", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6127] <... chdir resumed>) = 0 [pid 6125] close(12 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] newfstatat(3, "", [pid 6127] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6125] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] openat(AT_FDCWD, "./47", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6127] <... prctl resumed>) = 0 [pid 6125] close(13 [pid 5877] <... openat resumed>) = 3 [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5875] openat(AT_FDCWD, "./46", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6127] setpgid(0, 0 [pid 6125] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(3, "", [pid 5876] getdents64(3, [pid 5875] <... openat resumed>) = 3 [pid 6127] <... setpgid resumed>) = 0 [pid 6125] close(14 [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6127] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 6125] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] getdents64(3, [pid 5876] umount2("./48/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] newfstatat(3, "", [pid 6127] <... symlink resumed>) = 0 [pid 6125] close(15 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6127] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 6125] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./47/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] newfstatat(AT_FDCWD, "./48/binderfs", [pid 6127] <... symlink resumed>) = 0 [pid 6125] close(16 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] getdents64(3, [pid 6127] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 6125] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6127] <... symlink resumed>) = 0 [pid 6125] close(17 [pid 5875] umount2("./46/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5877] newfstatat(AT_FDCWD, "./47/binderfs", [pid 5876] unlink("./48/binderfs" [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6127] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6125] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6127] <... openat resumed>) = 3 [pid 6125] close(18 [pid 5877] unlink("./47/binderfs" [pid 5876] <... unlink resumed>) = 0 [pid 5875] newfstatat(AT_FDCWD, "./46/binderfs", [pid 6125] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./48/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6127] write(3, "1000", 4 [pid 6125] close(19 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6127] <... write resumed>) = 4 [pid 6125] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6127] close(3 [pid 6125] close(20 [pid 6127] <... close resumed>) = 0 [pid 6125] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 5875] unlink("./46/binderfs" [pid 6127] read(200, [pid 6125] close(21 [pid 5877] umount2("./47/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6127] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6125] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 [pid 6127] symlink("/dev/binderfs", "./binderfs" [pid 6125] close(22 [pid 6127] <... symlink resumed>) = 0 [pid 6125] <... close resumed>) = -1 EBADF (Bad file descriptor) executing program [pid 6127] write(1, "executing program\n", 18 [pid 6125] close(23 [pid 6127] <... write resumed>) = 18 [pid 6125] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6127] perf_event_open( [pid 6125] close(24) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] umount2("./46/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] newfstatat(AT_FDCWD, "./48/cgroup.net", [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] newfstatat(AT_FDCWD, "./47/cgroup.net", [pid 6127] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6125] close(25 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] newfstatat(AT_FDCWD, "./46/cgroup.net", [pid 6127] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6125] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./47/cgroup.net" [pid 6127] <... bpf resumed>) = 4 [pid 6125] close(26 [pid 5876] unlink("./48/cgroup.net" [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6127] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6125] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 6125] close(27 [pid 5877] umount2("./47/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] <... unlink resumed>) = 0 [pid 5875] unlink("./46/cgroup.net" [pid 6127] <... bpf resumed>) = 5 [pid 6125] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] umount2("./48/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... unlink resumed>) = 0 [pid 6127] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6125] close(28 [pid 5877] newfstatat(AT_FDCWD, "./47/cgroup.cpu", [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6127] <... bpf resumed>) = 6 [pid 6125] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] umount2("./46/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5877] unlink("./47/cgroup.cpu" [pid 5876] newfstatat(AT_FDCWD, "./48/cgroup.cpu", [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6127] perf_event_open( [pid 6125] close(29 [pid 5877] <... unlink resumed>) = 0 [pid 6127] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6125] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] newfstatat(AT_FDCWD, "./46/cgroup.cpu", [pid 6127] close(3 [pid 6125] exit_group(0) = ? [pid 5877] umount2("./47/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] unlink("./48/cgroup.cpu" [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5877] newfstatat(AT_FDCWD, "./47/cgroup", [pid 5876] <... unlink resumed>) = 0 [pid 5875] unlink("./46/cgroup.cpu" [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] <... unlink resumed>) = 0 [pid 6125] +++ exited with 0 +++ [pid 5877] unlink("./47/cgroup" [pid 5876] umount2("./48/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5877] <... unlink resumed>) = 0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] umount2("./46/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5877] getdents64(3, [pid 5876] newfstatat(AT_FDCWD, "./48/cgroup", [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=47, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5875] newfstatat(AT_FDCWD, "./46/cgroup", [pid 5874] restart_syscall(<... resuming interrupted clone ...> [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5877] close(3 [pid 5876] unlink("./48/cgroup" [pid 5877] <... close resumed>) = 0 [pid 5875] unlink("./46/cgroup" [pid 5877] rmdir("./47" [pid 5876] <... unlink resumed>) = 0 [pid 5877] <... rmdir resumed>) = 0 [pid 5876] getdents64(3, [pid 5877] mkdir("./48", 0777 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5877] <... mkdir resumed>) = 0 [pid 5875] <... unlink resumed>) = 0 [pid 5874] <... restart_syscall resumed>) = 0 [pid 5875] getdents64(3, [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5876] close(3 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5876] <... close resumed>) = 0 [pid 5875] close(3 [pid 5874] umount2("./45", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] rmdir("./48" [pid 5875] <... close resumed>) = 0 [pid 5876] <... rmdir resumed>) = 0 [pid 5875] rmdir("./46" [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] mkdir("./49", 0777 [pid 5875] <... rmdir resumed>) = 0 [pid 5874] openat(AT_FDCWD, "./45", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 6128 attached [pid 5876] <... mkdir resumed>) = 0 [pid 5875] mkdir("./47", 0777 [pid 5874] <... openat resumed>) = 3 [pid 6128] set_robust_list(0x5555947fb660, 24 [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 50 [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6128] <... set_robust_list resumed>) = 0 [pid 5875] <... mkdir resumed>) = 0 [pid 5874] newfstatat(3, "", [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 6130 attached [pid 6130] set_robust_list(0x5555947fb660, 24 [pid 5874] getdents64(3, 0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6130] <... set_robust_list resumed>) = 0 [pid 5874] umount2("./45/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 6129 attached [pid 6130] chdir("./49" [pid 6128] chdir("./48" [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 51 [pid 6128] <... chdir resumed>) = 0 [pid 6130] <... chdir resumed>) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6130] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5874] newfstatat(AT_FDCWD, "./45/binderfs", [pid 6130] <... prctl resumed>) = 0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6130] setpgid(0, 0 [pid 5874] unlink("./45/binderfs" [pid 6130] <... setpgid resumed>) = 0 [pid 6129] set_robust_list(0x5555947fb660, 24 [pid 6128] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6127] <... close resumed>) = 0 [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 49 [pid 5874] <... unlink resumed>) = 0 [pid 6130] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 6129] <... set_robust_list resumed>) = 0 [pid 6128] <... prctl resumed>) = 0 [pid 6127] close(4 [pid 5874] umount2("./45/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6128] setpgid(0, 0 [pid 6130] <... symlink resumed>) = 0 [pid 6128] <... setpgid resumed>) = 0 [pid 6127] <... close resumed>) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] newfstatat(AT_FDCWD, "./45/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6130] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5874] unlink("./45/cgroup.net" [pid 6129] chdir("./47" [pid 5874] <... unlink resumed>) = 0 [pid 6130] <... symlink resumed>) = 0 [pid 6127] close(5 [pid 5874] umount2("./45/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6130] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 6128] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6130] <... symlink resumed>) = 0 [pid 6127] <... close resumed>) = 0 [pid 5874] newfstatat(AT_FDCWD, "./45/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6130] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6127] close(6 [pid 5874] unlink("./45/cgroup.cpu" [pid 6129] <... chdir resumed>) = 0 [pid 6128] <... symlink resumed>) = 0 [pid 5874] <... unlink resumed>) = 0 [pid 6129] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6130] <... openat resumed>) = 3 [pid 6129] <... prctl resumed>) = 0 [pid 5874] umount2("./45/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6129] setpgid(0, 0 [pid 6127] <... close resumed>) = 0 [pid 6130] write(3, "1000", 4 [pid 6129] <... setpgid resumed>) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6129] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 6128] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5874] newfstatat(AT_FDCWD, "./45/cgroup", [pid 6127] close(7 [pid 6130] <... write resumed>) = 4 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6130] close(3 [pid 6128] <... symlink resumed>) = 0 [pid 5874] unlink("./45/cgroup" [pid 6130] <... close resumed>) = 0 [pid 6128] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 6127] <... close resumed>) = 0 [pid 5874] <... unlink resumed>) = 0 [pid 6130] read(200, [pid 6129] <... symlink resumed>) = 0 [pid 6127] close(8 [pid 5874] getdents64(3, [pid 6130] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6129] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6130] symlink("/dev/binderfs", "./binderfs" [pid 6129] <... symlink resumed>) = 0 [pid 5874] close(3) = 0 [pid 6130] <... symlink resumed>) = 0 [pid 6128] <... symlink resumed>) = 0 [pid 6127] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6128] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6127] close(9) = -1 EBADF (Bad file descriptor) [pid 6127] close(10) = -1 EBADF (Bad file descriptor) [pid 6127] close(11executing program [pid 6130] write(1, "executing program\n", 18 [pid 6129] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5874] rmdir("./45" [pid 6130] <... write resumed>) = 18 [pid 6129] <... symlink resumed>) = 0 [pid 5874] <... rmdir resumed>) = 0 [pid 6130] perf_event_open( [pid 6129] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5874] mkdir("./46", 0777 [pid 6128] <... openat resumed>) = 3 [pid 6127] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6128] write(3, "1000", 4 [pid 6127] close(12 [pid 6128] <... write resumed>) = 4 [pid 6127] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6129] <... openat resumed>) = 3 [pid 6128] close(3 [pid 6127] close(13 [pid 5874] <... mkdir resumed>) = 0 [pid 6130] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6129] write(3, "1000", 4 [pid 6128] <... close resumed>) = 0 [pid 6127] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6131 attached [pid 6130] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6129] <... write resumed>) = 4 [pid 6128] read(200, [pid 6127] close(14 [pid 6129] close(3 [pid 6128] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6127] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6128] symlink("/dev/binderfs", "./binderfs" [pid 6131] set_robust_list(0x5555947fb660, 24 [pid 6130] <... bpf resumed>) = 4 [pid 6129] <... close resumed>) = 0 [pid 6127] close(15 [pid 6130] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6129] read(200, [pid 6127] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 48 [pid 6131] <... set_robust_list resumed>) = 0 [pid 6130] <... bpf resumed>) = 5 [pid 6129] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6128] <... symlink resumed>) = 0 [pid 6127] close(16executing program [pid 6131] chdir("./46" [pid 6130] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6129] symlink("/dev/binderfs", "./binderfs" [pid 6128] write(1, "executing program\n", 18 [pid 6131] <... chdir resumed>) = 0 [pid 6128] <... write resumed>) = 18 [pid 6131] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6130] <... bpf resumed>) = 6 [pid 6129] <... symlink resumed>) = 0 [pid 6128] perf_event_open( [pid 6127] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6131] setpgid(0, 0 [pid 6130] perf_event_open(executing program {type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6129] write(1, "executing program\n", 18 [pid 6130] close(3 [pid 6129] <... write resumed>) = 18 [pid 6129] perf_event_open( [pid 6131] <... setpgid resumed>) = 0 [pid 6130] <... close resumed>) = 0 [pid 6128] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6127] close(17 [pid 6131] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 6129] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6128] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6127] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6131] <... symlink resumed>) = 0 [pid 6130] close(4 [pid 6129] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6127] close(18 [pid 6131] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 6130] <... close resumed>) = 0 [pid 6129] <... bpf resumed>) = 4 [pid 6128] <... bpf resumed>) = 4 [pid 6127] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6130] close(5 [pid 6129] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6127] close(19 [pid 6131] <... symlink resumed>) = 0 [pid 6130] <... close resumed>) = 0 [pid 6129] <... bpf resumed>) = 5 [pid 6128] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6127] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6130] close(6 [pid 6127] close(20 [pid 6130] <... close resumed>) = 0 [pid 6131] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 6129] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6128] <... bpf resumed>) = 5 [pid 6127] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6131] <... symlink resumed>) = 0 [pid 6130] close(7 [pid 6129] <... bpf resumed>) = 6 [pid 6128] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6127] close(21 [pid 6131] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6130] <... close resumed>) = 0 [pid 6129] perf_event_open( [pid 6127] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6131] <... openat resumed>) = 3 [pid 6129] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6128] <... bpf resumed>) = 6 [pid 6127] close(22 [pid 6131] write(3, "1000", 4 [pid 6130] close(8 [pid 6129] close(3 [pid 6131] <... write resumed>) = 4 [pid 6128] perf_event_open( [pid 6131] close(3 [pid 6127] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6130] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6131] <... close resumed>) = 0 [pid 6130] close(9 [pid 6129] <... close resumed>) = 0 [pid 6128] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6127] close(23 [pid 6131] read(200, [pid 6130] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6129] close(4) = 0 [pid 6129] close(5) = 0 [pid 6129] close(6 [pid 6131] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6130] close(10 [pid 6128] close(3 [pid 6127] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6131] symlink("/dev/binderfs", "./binderfs" [pid 6130] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6127] close(24 [pid 6131] <... symlink resumed>) = 0 [pid 6131] write(1, "executing program\n", 18executing program [pid 6130] close(11 [pid 6129] <... close resumed>) = 0 [pid 6127] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6131] <... write resumed>) = 18 [pid 6130] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6129] close(7 [pid 6127] close(25 [pid 6131] perf_event_open( [pid 6130] close(12 [pid 6127] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6130] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6129] <... close resumed>) = 0 [pid 6130] close(13 [pid 6129] close(8 [pid 6127] close(26 [pid 6130] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6127] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6130] close(14 [pid 6129] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6127] close(27 [pid 6129] close(9) = -1 EBADF (Bad file descriptor) [pid 6130] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6129] close(10 [pid 6127] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6129] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6129] close(11 [pid 6127] close(28 [pid 6130] close(15 [pid 6129] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6127] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6130] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6129] close(12 [pid 6127] close(29 [pid 6129] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6129] close(13) = -1 EBADF (Bad file descriptor) [pid 6129] close(14) = -1 EBADF (Bad file descriptor) [pid 6129] close(15) = -1 EBADF (Bad file descriptor) [pid 6129] close(16) = -1 EBADF (Bad file descriptor) [pid 6129] close(17) = -1 EBADF (Bad file descriptor) [pid 6129] close(18) = -1 EBADF (Bad file descriptor) [pid 6129] close(19) = -1 EBADF (Bad file descriptor) [pid 6129] close(20) = -1 EBADF (Bad file descriptor) [pid 6129] close(21) = -1 EBADF (Bad file descriptor) [pid 6129] close(22) = -1 EBADF (Bad file descriptor) [pid 6129] close(23) = -1 EBADF (Bad file descriptor) [pid 6129] close(24) = -1 EBADF (Bad file descriptor) [pid 6129] close(25) = -1 EBADF (Bad file descriptor) [pid 6129] close(26) = -1 EBADF (Bad file descriptor) [pid 6129] close(27) = -1 EBADF (Bad file descriptor) [pid 6129] close(28) = -1 EBADF (Bad file descriptor) [pid 6129] close(29) = -1 EBADF (Bad file descriptor) [pid 6130] close(16 [pid 6129] exit_group(0 [pid 6127] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6130] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6129] <... exit_group resumed>) = ? [pid 6130] close(17 [pid 6127] exit_group(0 [pid 6130] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6130] close(18) = -1 EBADF (Bad file descriptor) [pid 6127] <... exit_group resumed>) = ? [pid 6130] close(19) = -1 EBADF (Bad file descriptor) [pid 6130] close(20 [pid 6129] +++ exited with 0 +++ [pid 6130] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6130] close(21) = -1 EBADF (Bad file descriptor) [pid 6130] close(22) = -1 EBADF (Bad file descriptor) [pid 6130] close(23) = -1 EBADF (Bad file descriptor) [pid 6130] close(24) = -1 EBADF (Bad file descriptor) [pid 6130] close(25 [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=49, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5875] umount2("./47", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6130] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6127] +++ exited with 0 +++ [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6130] close(26 [pid 5875] openat(AT_FDCWD, "./47", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6130] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... openat resumed>) = 3 [pid 6130] close(27 [pid 5875] newfstatat(3, "", [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=49, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6130] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6130] close(28 [pid 5873] restart_syscall(<... resuming interrupted clone ...> [pid 6130] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6130] close(29 [pid 5875] getdents64(3, 0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6130] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./47/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5875] newfstatat(AT_FDCWD, "./47/binderfs", [pid 6130] exit_group(0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6130] <... exit_group resumed>) = ? [pid 5875] unlink("./47/binderfs") = 0 [pid 5875] umount2("./47/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6128] <... close resumed>) = 0 [pid 6128] close(4 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6131] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6131] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6128] <... close resumed>) = 0 [pid 5875] newfstatat(AT_FDCWD, "./47/cgroup.net", [pid 6131] <... bpf resumed>) = 4 [pid 6128] close(5 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6131] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6128] <... close resumed>) = 0 [pid 5875] unlink("./47/cgroup.net" [pid 6128] close(6 [pid 5875] <... unlink resumed>) = 0 [pid 5873] <... restart_syscall resumed>) = 0 [pid 6128] <... close resumed>) = 0 [pid 6130] +++ exited with 0 +++ [pid 6128] close(7 [pid 5875] umount2("./47/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6128] <... close resumed>) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6128] close(8 [pid 5875] newfstatat(AT_FDCWD, "./47/cgroup.cpu", [pid 6128] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=51, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6131] <... bpf resumed>) = 5 [pid 6128] close(9) = -1 EBADF (Bad file descriptor) [pid 5875] unlink("./47/cgroup.cpu" [pid 6131] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6128] close(10 [pid 5875] <... unlink resumed>) = 0 [pid 5873] umount2("./47", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6128] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./47/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6128] close(11 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6128] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6128] close(12 [pid 5875] newfstatat(AT_FDCWD, "./47/cgroup", [pid 6128] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6131] <... bpf resumed>) = 6 [pid 6128] close(13 [pid 5873] openat(AT_FDCWD, "./47", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6128] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] unlink("./47/cgroup" [pid 6131] perf_event_open( [pid 6128] close(14 [pid 5875] <... unlink resumed>) = 0 [pid 5873] <... openat resumed>) = 3 [pid 6128] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6128] close(15 [pid 5875] getdents64(3, [pid 5873] newfstatat(3, "", [pid 6131] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6128] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6128] close(16 [pid 5875] close(3 [pid 6128] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6128] close(17 [pid 5875] <... close resumed>) = 0 [pid 6128] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] rmdir("./47" [pid 6128] close(18 [pid 5875] <... rmdir resumed>) = 0 [pid 6131] close(3 [pid 6128] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6128] close(19 [pid 5875] mkdir("./48", 0777 [pid 5873] getdents64(3, [pid 6128] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... mkdir resumed>) = 0 [pid 6128] close(20) = -1 EBADF (Bad file descriptor) [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6128] close(21 [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5873] umount2("./47/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6128] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6128] close(22 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 6132 attached [pid 6128] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./49", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 50 [pid 5873] newfstatat(AT_FDCWD, "./47/binderfs", [pid 6132] set_robust_list(0x5555947fb660, 24 [pid 6128] close(23 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6132] <... set_robust_list resumed>) = 0 [pid 6128] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6132] chdir("./48" [pid 6128] close(24 [pid 5876] openat(AT_FDCWD, "./49", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5873] unlink("./47/binderfs" [pid 6132] <... chdir resumed>) = 0 [pid 6128] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... openat resumed>) = 3 [pid 5873] <... unlink resumed>) = 0 [pid 6132] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6128] close(25 [pid 5876] newfstatat(3, "", [pid 6132] <... prctl resumed>) = 0 [pid 6128] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] umount2("./47/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6132] setpgid(0, 0 [pid 6128] close(26 [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6132] <... setpgid resumed>) = 0 [pid 6128] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] getdents64(3, [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6132] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 6128] close(27 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5873] newfstatat(AT_FDCWD, "./47/cgroup.net", [pid 6128] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./49/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6132] <... symlink resumed>) = 0 [pid 6128] close(28 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6132] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 6128] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(AT_FDCWD, "./49/binderfs", [pid 5873] unlink("./47/cgroup.net" [pid 6128] close(29 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... unlink resumed>) = 0 [pid 6132] <... symlink resumed>) = 0 [pid 6128] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] unlink("./49/binderfs" [pid 6132] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 6128] exit_group(0 [pid 5876] <... unlink resumed>) = 0 [pid 5873] umount2("./47/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] umount2("./49/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5876] newfstatat(AT_FDCWD, "./49/cgroup.net", [pid 6132] <... symlink resumed>) = 0 [pid 6128] <... exit_group resumed>) = ? [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] unlink("./49/cgroup.net") = 0 [pid 5876] umount2("./49/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6132] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6131] <... close resumed>) = 0 [pid 6128] +++ exited with 0 +++ [pid 5873] newfstatat(AT_FDCWD, "./47/cgroup.cpu", [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] newfstatat(AT_FDCWD, "./49/cgroup.cpu", [pid 6131] close(4 [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=50, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] unlink("./49/cgroup.cpu") = 0 [pid 5876] umount2("./49/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6132] <... openat resumed>) = 3 [pid 6131] <... close resumed>) = 0 [pid 5873] unlink("./47/cgroup.cpu" [pid 6131] close(5 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... unlink resumed>) = 0 [pid 6131] <... close resumed>) = 0 [pid 5876] newfstatat(AT_FDCWD, "./49/cgroup", [pid 6132] write(3, "1000", 4 [pid 5873] umount2("./47/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6132] <... write resumed>) = 4 [pid 6131] close(6 [pid 5877] umount2("./48", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6132] close(3 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] newfstatat(AT_FDCWD, "./47/cgroup", [pid 6132] <... close resumed>) = 0 [pid 5877] openat(AT_FDCWD, "./48", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6132] read(200, 0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5877] <... openat resumed>) = 3 [pid 6132] symlink("/dev/binderfs", "./binderfs" [pid 5877] newfstatat(3, "", [pid 5873] unlink("./47/cgroup" [pid 6132] <... symlink resumed>) = 0 [pid 6131] <... close resumed>) = 0 [pid 5876] unlink("./49/cgroup" [pid 5873] <... unlink resumed>) = 0 [pid 6132] write(1, "executing program\n", 18 [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5876] <... unlink resumed>) = 0 executing program [pid 6132] <... write resumed>) = 18 [pid 5877] getdents64(3, [pid 5873] getdents64(3, [pid 6131] close(7 [pid 5876] getdents64(3, [pid 6132] perf_event_open( [pid 6131] <... close resumed>) = 0 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6131] close(8 [pid 5877] umount2("./48/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6131] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] close(3 [pid 5873] close(3 [pid 6132] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6131] close(9 [pid 5877] newfstatat(AT_FDCWD, "./48/binderfs", [pid 5876] <... close resumed>) = 0 [pid 5873] <... close resumed>) = 0 [pid 6132] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5876] rmdir("./49" [pid 6132] <... bpf resumed>) = 4 [pid 6131] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] rmdir("./47" [pid 6132] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6131] close(10 [pid 5877] unlink("./48/binderfs" [pid 5876] <... rmdir resumed>) = 0 [pid 6131] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] mkdir("./50", 0777 [pid 5873] <... rmdir resumed>) = 0 [pid 6131] close(11 [pid 5877] <... unlink resumed>) = 0 [pid 5876] <... mkdir resumed>) = 0 [pid 5873] mkdir("./48", 0777 [pid 6132] <... bpf resumed>) = 5 [pid 6131] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./48/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6131] close(12 [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6132] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5873] <... mkdir resumed>) = 0 [pid 6132] <... bpf resumed>) = 6 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6132] perf_event_open(./strace-static-x86_64: Process 6133 attached [pid 6131] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./48/cgroup.net", [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6133] set_robust_list(0x5555947fb660, 24 [pid 6132] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6131] close(13 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 52 [pid 6133] <... set_robust_list resumed>) = 0 [pid 6132] close(3 [pid 6131] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./48/cgroup.net"./strace-static-x86_64: Process 6134 attached [pid 6131] close(14 [pid 5877] <... unlink resumed>) = 0 [pid 6134] set_robust_list(0x5555947fb660, 24 [pid 6133] chdir("./50" [pid 5877] umount2("./48/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6134] <... set_robust_list resumed>) = 0 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 50 [pid 6134] chdir("./48" [pid 6133] <... chdir resumed>) = 0 [pid 6131] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./48/cgroup.cpu", [pid 6134] <... chdir resumed>) = 0 [pid 6133] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6131] close(15 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6134] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6133] <... prctl resumed>) = 0 [pid 6131] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./48/cgroup.cpu" [pid 6134] <... prctl resumed>) = 0 [pid 6133] setpgid(0, 0 [pid 6131] close(16 [pid 5877] <... unlink resumed>) = 0 [pid 6133] <... setpgid resumed>) = 0 [pid 6134] setpgid(0, 0 [pid 6131] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./48/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6131] close(17 [pid 6134] <... setpgid resumed>) = 0 [pid 6133] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 6131] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6134] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 6133] <... symlink resumed>) = 0 [pid 6131] close(18 [pid 6134] <... symlink resumed>) = 0 [pid 6133] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 6131] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./48/cgroup", [pid 6134] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 6133] <... symlink resumed>) = 0 [pid 6131] close(19 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6134] <... symlink resumed>) = 0 [pid 6133] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5877] unlink("./48/cgroup" [pid 6134] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 6132] <... close resumed>) = 0 [pid 6131] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 6134] <... symlink resumed>) = 0 [pid 6133] <... symlink resumed>) = 0 [pid 6132] close(4 [pid 5877] getdents64(3, [pid 6131] close(20 [pid 6134] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6133] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6131] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6134] <... openat resumed>) = 3 [pid 6132] <... close resumed>) = 0 [pid 5877] close(3 [pid 6134] write(3, "1000", 4 [pid 5877] <... close resumed>) = 0 [pid 6134] <... write resumed>) = 4 [pid 6133] <... openat resumed>) = 3 [pid 6131] close(21 [pid 5877] rmdir("./48" [pid 6134] close(3 [pid 6131] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... rmdir resumed>) = 0 [pid 6134] <... close resumed>) = 0 [pid 6133] write(3, "1000", 4 [pid 6132] close(5 [pid 6131] close(22 [pid 6134] read(200, [pid 6133] <... write resumed>) = 4 [pid 5877] mkdir("./49", 0777 [pid 6134] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6133] close(3 [pid 6132] <... close resumed>) = 0 [pid 6131] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... mkdir resumed>) = 0 [pid 6134] symlink("/dev/binderfs", "./binderfs" [pid 6133] <... close resumed>) = 0 [pid 6132] close(6 [pid 6131] close(23 [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6134] <... symlink resumed>) = 0 [pid 6131] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 6135 attached executing program [pid 6134] write(1, "executing program\n", 18 [pid 6133] read(200, [pid 6132] <... close resumed>) = 0 [pid 6131] close(24 [pid 6135] set_robust_list(0x5555947fb660, 24 [pid 6134] <... write resumed>) = 18 [pid 6133] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6131] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6135] <... set_robust_list resumed>) = 0 [pid 6134] perf_event_open(executing program [pid 6133] symlink("/dev/binderfs", "./binderfs" [pid 6131] close(25 [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 51 [pid 6133] <... symlink resumed>) = 0 [pid 6133] write(1, "executing program\n", 18 [pid 6134] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6134] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6133] <... write resumed>) = 18 [pid 6135] chdir("./49" [pid 6134] <... bpf resumed>) = 4 [pid 6132] close(7 [pid 6131] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6135] <... chdir resumed>) = 0 [pid 6134] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6133] perf_event_open( [pid 6131] close(26 [pid 6135] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6132] <... close resumed>) = 0 [pid 6131] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6135] <... prctl resumed>) = 0 [pid 6133] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6132] close(8 [pid 6131] close(27) = -1 EBADF (Bad file descriptor) [pid 6135] setpgid(0, 0 [pid 6132] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6131] close(28 [pid 6135] <... setpgid resumed>) = 0 [pid 6133] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6132] close(9 [pid 6131] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6135] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 6134] <... bpf resumed>) = 5 [pid 6133] <... bpf resumed>) = 4 [pid 6132] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6131] close(29 [pid 6133] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6135] <... symlink resumed>) = 0 [pid 6134] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6132] close(10 [pid 6131] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6135] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 6134] <... bpf resumed>) = 6 [pid 6133] <... bpf resumed>) = 5 [pid 6132] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6131] exit_group(0 [pid 6135] <... symlink resumed>) = 0 [pid 6134] perf_event_open( [pid 6133] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6132] close(11 [pid 6135] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 6134] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6133] <... bpf resumed>) = 6 [pid 6132] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6131] <... exit_group resumed>) = ? [pid 6135] <... symlink resumed>) = 0 [pid 6134] close(3 [pid 6133] perf_event_open( [pid 6134] <... close resumed>) = 0 [pid 6133] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6133] close(3 [pid 6135] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6134] close(4 [pid 6132] close(12 [pid 6131] +++ exited with 0 +++ [pid 6135] <... openat resumed>) = 3 [pid 6134] <... close resumed>) = 0 [pid 6132] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=48, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6132] close(13) = -1 EBADF (Bad file descriptor) [pid 6135] write(3, "1000", 4 [pid 6134] close(5 [pid 6133] <... close resumed>) = 0 [pid 6132] close(14 [pid 6135] <... write resumed>) = 4 [pid 5874] umount2("./46", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6135] close(3 [pid 6134] <... close resumed>) = 0 [pid 6133] close(4 [pid 6132] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] openat(AT_FDCWD, "./46", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6135] <... close resumed>) = 0 [pid 6133] <... close resumed>) = 0 [pid 6132] close(15 [pid 5874] <... openat resumed>) = 3 [pid 6135] read(200, [pid 6134] close(6 [pid 6133] close(5 [pid 6132] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6135] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6132] close(16 [pid 6135] symlink("/dev/binderfs", "./binderfs" [pid 6133] <... close resumed>) = 0 [pid 6132] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] newfstatat(3, "", [pid 6133] close(6 [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5874] getdents64(3, 0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5874] umount2("./46/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6132] close(17) = -1 EBADF (Bad file descriptor) [pid 5874] newfstatat(AT_FDCWD, "./46/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6135] <... symlink resumed>) = 0 [pid 6134] <... close resumed>) = 0 [pid 6133] <... close resumed>) = 0 [pid 6132] close(18 [pid 5874] unlink("./46/binderfs" [pid 6135] write(1, "executing program\n", 18executing program [pid 6134] close(7 [pid 6133] close(7 [pid 6132] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... unlink resumed>) = 0 [pid 6135] <... write resumed>) = 18 [pid 6134] <... close resumed>) = 0 [pid 6133] <... close resumed>) = 0 [pid 6132] close(19 [pid 5874] umount2("./46/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6135] perf_event_open( [pid 6134] close(8 [pid 6133] close(8 [pid 6132] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6134] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6133] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6132] close(20 [pid 5874] newfstatat(AT_FDCWD, "./46/cgroup.net", [pid 6134] close(9 [pid 6133] close(9 [pid 6132] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6132] close(21 [pid 6134] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6133] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6132] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6134] close(10 [pid 6133] close(10 [pid 6134] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6133] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] unlink("./46/cgroup.net" [pid 6134] close(11 [pid 6133] close(11 [pid 5874] <... unlink resumed>) = 0 [pid 6134] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6133] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6134] close(12 [pid 6133] close(12 [pid 6132] close(22 [pid 5874] umount2("./46/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6135] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6134] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6133] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6132] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6135] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6134] close(13 [pid 6133] close(13 [pid 5874] newfstatat(AT_FDCWD, "./46/cgroup.cpu", [pid 6134] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6133] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6132] close(23 [pid 6135] <... bpf resumed>) = 4 [pid 6134] close(14 [pid 6133] close(14 [pid 6132] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6135] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6134] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6133] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6132] close(24 [pid 6134] close(15 [pid 6133] close(15 [pid 6132] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] unlink("./46/cgroup.cpu" [pid 6134] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6133] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6134] close(16 [pid 6133] close(16 [pid 6134] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6133] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6134] close(17 [pid 6133] close(17 [pid 6134] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6133] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6134] close(18) = -1 EBADF (Bad file descriptor) [pid 6133] close(18 [pid 6134] close(19 [pid 6133] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6134] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6133] close(19 [pid 6134] close(20) = -1 EBADF (Bad file descriptor) [pid 6133] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6134] close(21 [pid 6133] close(20 [pid 6134] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6133] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6134] close(22 [pid 6133] close(21 [pid 6135] <... bpf resumed>) = 5 [pid 6134] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6133] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6134] close(23 [pid 6133] close(22 [pid 6134] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6133] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6134] close(24) = -1 EBADF (Bad file descriptor) [pid 6133] close(23 [pid 6134] close(25) = -1 EBADF (Bad file descriptor) [pid 6133] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6134] close(26 [pid 6133] close(24 [pid 6134] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6134] close(27 [pid 6133] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6134] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6133] close(25 [pid 6134] close(28) = -1 EBADF (Bad file descriptor) [pid 6133] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6134] close(29 [pid 6133] close(26 [pid 6134] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6133] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6134] exit_group(0 [pid 6133] close(27) = -1 EBADF (Bad file descriptor) [pid 6135] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6134] <... exit_group resumed>) = ? [pid 6132] close(25 [pid 5874] <... unlink resumed>) = 0 [pid 6135] <... bpf resumed>) = 6 [pid 6133] close(28 [pid 6132] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./46/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6135] perf_event_open( [pid 6133] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6132] close(26 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6135] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6134] +++ exited with 0 +++ [pid 6133] close(29 [pid 6132] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] newfstatat(AT_FDCWD, "./46/cgroup", [pid 6135] close(3 [pid 6133] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6132] close(27 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6133] exit_group(0 [pid 6132] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] unlink("./46/cgroup" [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=50, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 6133] <... exit_group resumed>) = ? [pid 6132] close(28 [pid 5874] <... unlink resumed>) = 0 [pid 6132] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] getdents64(3, [pid 5873] restart_syscall(<... resuming interrupted clone ...> [pid 6132] close(29 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6132] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] close(3 [pid 5873] <... restart_syscall resumed>) = 0 [pid 5874] <... close resumed>) = 0 [pid 5874] rmdir("./46") = 0 [pid 5874] mkdir("./47", 0777) = 0 [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6133] +++ exited with 0 +++ [pid 6132] exit_group(0) = ? [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=52, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 6136 attached [pid 6135] <... close resumed>) = 0 [pid 5873] umount2("./48", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6136] set_robust_list(0x5555947fb660, 24 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] openat(AT_FDCWD, "./48", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 49 [pid 5873] <... openat resumed>) = 3 [pid 5876] umount2("./50", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] newfstatat(3, "", [pid 6136] <... set_robust_list resumed>) = 0 [pid 6135] close(4 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6136] chdir("./47" [pid 6135] <... close resumed>) = 0 [pid 6132] +++ exited with 0 +++ [pid 5876] openat(AT_FDCWD, "./50", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5873] getdents64(3, [pid 5876] <... openat resumed>) = 3 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5873] umount2("./48/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] newfstatat(3, "", [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5873] newfstatat(AT_FDCWD, "./48/binderfs", [pid 5876] getdents64(3, [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6135] close(5 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=50, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6136] <... chdir resumed>) = 0 [pid 6135] <... close resumed>) = 0 [pid 5873] unlink("./48/binderfs" [pid 6136] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5876] umount2("./50/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6136] <... prctl resumed>) = 0 [pid 6135] close(6 [pid 6136] setpgid(0, 0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... unlink resumed>) = 0 [pid 5876] newfstatat(AT_FDCWD, "./50/binderfs", [pid 5873] umount2("./48/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] unlink("./50/binderfs" [pid 5873] newfstatat(AT_FDCWD, "./48/cgroup.net", [pid 5876] <... unlink resumed>) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] umount2("./50/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] unlink("./48/cgroup.net" [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... unlink resumed>) = 0 [pid 6136] <... setpgid resumed>) = 0 [pid 6135] <... close resumed>) = 0 [pid 5876] newfstatat(AT_FDCWD, "./50/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] umount2("./48/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6136] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 6135] close(7 [pid 5876] unlink("./50/cgroup.net" [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6135] <... close resumed>) = 0 [pid 5876] <... unlink resumed>) = 0 [pid 5873] newfstatat(AT_FDCWD, "./48/cgroup.cpu", [pid 6136] <... symlink resumed>) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] umount2("./50/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] unlink("./48/cgroup.cpu" [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... unlink resumed>) = 0 [pid 5876] newfstatat(AT_FDCWD, "./50/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] umount2("./48/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] unlink("./50/cgroup.cpu") = 0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] umount2("./50/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] newfstatat(AT_FDCWD, "./48/cgroup", [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] newfstatat(AT_FDCWD, "./50/cgroup", [pid 5873] unlink("./48/cgroup" [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... unlink resumed>) = 0 [pid 6135] close(8 [pid 5876] unlink("./50/cgroup" [pid 6136] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5876] <... unlink resumed>) = 0 [pid 5873] getdents64(3, [pid 6136] <... symlink resumed>) = 0 [pid 6135] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] getdents64(3, [pid 5875] umount2("./48", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6136] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 6135] close(9 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] close(3 [pid 6135] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] close(3 [pid 5875] openat(AT_FDCWD, "./48", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5873] <... close resumed>) = 0 [pid 6135] close(10 [pid 5876] <... close resumed>) = 0 [pid 6135] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] rmdir("./50" [pid 5875] <... openat resumed>) = 3 [pid 5873] rmdir("./48" [pid 6136] <... symlink resumed>) = 0 [pid 6135] close(11 [pid 5876] <... rmdir resumed>) = 0 [pid 5875] newfstatat(3, "", [pid 5876] mkdir("./51", 0777 [pid 5873] <... rmdir resumed>) = 0 [pid 6135] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6136] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6135] close(12 [pid 5875] getdents64(3, [pid 6135] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... mkdir resumed>) = 0 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5873] mkdir("./49", 0777 [pid 6136] <... openat resumed>) = 3 [pid 6135] close(13 [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5875] umount2("./48/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... mkdir resumed>) = 0 [pid 6136] write(3, "1000", 4 [pid 6135] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6135] close(14 [pid 5875] newfstatat(AT_FDCWD, "./48/binderfs", [pid 6136] <... write resumed>) = 4 [pid 6135] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 6137 attached [pid 6136] close(3 [pid 6135] close(15 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6137] set_robust_list(0x5555947fb660, 24) = 0 [pid 6136] <... close resumed>) = 0 [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 53 [pid 6135] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6137] chdir("./51" [pid 6136] read(200, [pid 6135] close(16 [pid 5875] unlink("./48/binderfs" [pid 6137] <... chdir resumed>) = 0 [pid 6137] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6137] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 6138 attached [pid 6138] set_robust_list(0x5555947fb660, 24) = 0 [pid 6138] chdir("./49") = 0 [pid 6136] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6138] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6137] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 6135] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 [pid 6137] <... symlink resumed>) = 0 [pid 6136] symlink("/dev/binderfs", "./binderfs" [pid 6135] close(17 [pid 5875] umount2("./48/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6138] <... prctl resumed>) = 0 [pid 6137] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 6138] setpgid(0, 0 [pid 6137] <... symlink resumed>) = 0 [pid 6136] <... symlink resumed>) = 0 [pid 6135] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 51 [pid 6138] <... setpgid resumed>) = 0 executing program [pid 6136] write(1, "executing program\n", 18 [pid 6135] close(18 [pid 6138] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5875] newfstatat(AT_FDCWD, "./48/cgroup.net", [pid 6137] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 6136] <... write resumed>) = 18 [pid 6135] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6138] <... symlink resumed>) = 0 [pid 6137] <... symlink resumed>) = 0 [pid 6135] close(19 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6138] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 6137] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6138] <... symlink resumed>) = 0 [pid 6136] perf_event_open( [pid 6135] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] unlink("./48/cgroup.net" [pid 6135] close(20 [pid 6138] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 6137] <... openat resumed>) = 3 [pid 6135] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 [pid 6138] <... symlink resumed>) = 0 [pid 6136] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6137] write(3, "1000", 4) = 4 [pid 6138] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6137] close(3 [pid 6138] <... openat resumed>) = 3 [pid 6137] <... close resumed>) = 0 [pid 6135] close(21 [pid 5875] umount2("./48/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6136] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6135] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6138] write(3, "1000", 4 [pid 6137] read(200, [pid 6135] close(22 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6138] <... write resumed>) = 4 [pid 6137] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6135] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6138] close(3 [pid 6137] symlink("/dev/binderfs", "./binderfs" [pid 6135] close(23 [pid 5875] newfstatat(AT_FDCWD, "./48/cgroup.cpu", [pid 6137] <... symlink resumed>) = 0 [pid 6138] <... close resumed>) = 0 executing program [pid 6137] write(1, "executing program\n", 18 [pid 6135] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6138] read(200, [pid 6137] <... write resumed>) = 18 [pid 6135] close(24 [pid 5875] unlink("./48/cgroup.cpu" [pid 6138] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6137] perf_event_open( [pid 6138] symlink("/dev/binderfs", "./binderfs" [pid 6137] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6136] <... bpf resumed>) = 4 [pid 6135] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 [pid 6135] close(25 [pid 5875] umount2("./48/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6138] <... symlink resumed>) = 0 [pid 6137] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6136] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6135] <... close resumed>) = -1 EBADF (Bad file descriptor) executing program [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6138] write(1, "executing program\n", 18 [pid 6137] <... bpf resumed>) = 4 [pid 6138] <... write resumed>) = 18 [pid 6137] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6135] close(26 [pid 5875] newfstatat(AT_FDCWD, "./48/cgroup", [pid 6138] perf_event_open( [pid 6137] <... bpf resumed>) = 5 [pid 6136] <... bpf resumed>) = 5 [pid 6135] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6138] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6135] close(27 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6138] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80) = 4 [pid 6137] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6136] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6135] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] unlink("./48/cgroup" [pid 6138] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6137] <... bpf resumed>) = 6 [pid 6136] <... bpf resumed>) = 6 [pid 6135] close(28 [pid 5875] <... unlink resumed>) = 0 [pid 6137] perf_event_open( [pid 6135] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6136] perf_event_open( [pid 5875] getdents64(3, 0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5875] close(3) = 0 [pid 5875] rmdir("./48") = 0 [pid 6135] close(29 [pid 5875] mkdir("./49", 0777 [pid 6137] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6135] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6136] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6137] close(3 [pid 6135] exit_group(0 [pid 5875] <... mkdir resumed>) = 0 [pid 6136] close(3 [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6139 attached [pid 6137] <... close resumed>) = 0 [pid 6136] <... close resumed>) = 0 [pid 6135] <... exit_group resumed>) = ? [pid 6136] close(4 [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 51 [pid 6139] set_robust_list(0x5555947fb660, 24 [pid 6138] <... bpf resumed>) = 5 [pid 6137] close(4 [pid 6136] <... close resumed>) = 0 [pid 6135] +++ exited with 0 +++ [pid 6139] <... set_robust_list resumed>) = 0 [pid 6139] chdir("./49" [pid 6138] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6137] <... close resumed>) = 0 [pid 6136] close(5 [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=51, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6139] <... chdir resumed>) = 0 [pid 6137] close(5 [pid 6136] <... close resumed>) = 0 [pid 6139] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6138] <... bpf resumed>) = 6 [pid 6136] close(6 [pid 6139] <... prctl resumed>) = 0 [pid 6138] perf_event_open( [pid 6137] <... close resumed>) = 0 [pid 6138] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6136] <... close resumed>) = 0 [pid 6139] setpgid(0, 0 [pid 6138] close(3 [pid 6137] close(6 [pid 5877] umount2("./49", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6139] <... setpgid resumed>) = 0 [pid 6136] close(7 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6136] <... close resumed>) = 0 [pid 5877] openat(AT_FDCWD, "./49", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6139] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 6136] close(8 [pid 6139] <... symlink resumed>) = 0 [pid 6137] <... close resumed>) = 0 [pid 6136] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... openat resumed>) = 3 [pid 6139] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 6136] close(9 [pid 6139] <... symlink resumed>) = 0 [pid 6136] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(3, "", [pid 6139] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 6136] close(10 [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6139] <... symlink resumed>) = 0 [pid 6136] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6139] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6137] close(7 [pid 6136] close(11 [pid 5877] getdents64(3, [pid 6139] <... openat resumed>) = 3 [pid 6136] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6136] close(12) = -1 EBADF (Bad file descriptor) [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6139] write(3, "1000", 4 [pid 6137] <... close resumed>) = 0 [pid 6136] close(13 [pid 5877] umount2("./49/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6139] <... write resumed>) = 4 [pid 6137] close(8 [pid 6136] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6139] close(3 [pid 6137] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6136] close(14 [pid 5877] newfstatat(AT_FDCWD, "./49/binderfs", [pid 6139] <... close resumed>) = 0 [pid 6137] close(9 [pid 6136] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6139] read(200, [pid 6136] close(15 [pid 5877] unlink("./49/binderfs" [pid 6139] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6137] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6136] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 6139] symlink("/dev/binderfs", "./binderfs" [pid 6137] close(10 [pid 6136] close(16 [pid 5877] umount2("./49/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6139] <... symlink resumed>) = 0 [pid 6137] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6136] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6139] write(1, "executing program\n", 18executing program [pid 6136] close(17 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6137] close(11 [pid 6139] <... write resumed>) = 18 [pid 6136] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6137] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./49/cgroup.net", [pid 6139] perf_event_open( [pid 6137] close(12 [pid 6136] close(18 [pid 6137] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6136] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6136] close(19 [pid 5877] unlink("./49/cgroup.net" [pid 6137] close(13 [pid 6136] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6137] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6137] close(14) = -1 EBADF (Bad file descriptor) [pid 6137] close(15) = -1 EBADF (Bad file descriptor) [pid 6137] close(16) = -1 EBADF (Bad file descriptor) [pid 6137] close(17) = -1 EBADF (Bad file descriptor) [pid 6137] close(18 [pid 5877] <... unlink resumed>) = 0 [pid 6136] close(20 [pid 6137] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6136] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6137] close(19) = -1 EBADF (Bad file descriptor) [pid 6136] close(21 [pid 5877] umount2("./49/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6137] close(20 [pid 6136] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6137] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6137] close(21 [pid 6136] close(22 [pid 6137] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6137] close(22 [pid 6136] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./49/cgroup.cpu", [pid 6137] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6136] close(23 [pid 6137] close(23) = -1 EBADF (Bad file descriptor) [pid 6136] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6137] close(24) = -1 EBADF (Bad file descriptor) [pid 6136] close(24 [pid 5877] unlink("./49/cgroup.cpu" [pid 6137] close(25 [pid 6136] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6137] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6136] close(25 [pid 5877] <... unlink resumed>) = 0 [pid 6137] close(26 [pid 6136] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6137] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6136] close(26 [pid 5877] umount2("./49/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6137] close(27 [pid 6136] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6137] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6136] close(27 [pid 5877] newfstatat(AT_FDCWD, "./49/cgroup", [pid 6137] close(28) = -1 EBADF (Bad file descriptor) [pid 6136] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6137] close(29 [pid 6136] close(28 [pid 5877] unlink("./49/cgroup" [pid 6137] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6136] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 6136] close(29) = -1 EBADF (Bad file descriptor) [pid 5877] getdents64(3, [pid 6137] exit_group(0 [pid 6136] exit_group(0) = ? [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6137] <... exit_group resumed>) = ? [pid 6136] +++ exited with 0 +++ [pid 5877] close(3) = 0 [pid 5877] rmdir("./49") = 0 [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=49, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5877] mkdir("./50", 0777 [pid 6137] +++ exited with 0 +++ [pid 5877] <... mkdir resumed>) = 0 [pid 5874] restart_syscall(<... resuming interrupted clone ...> [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=53, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5874] <... restart_syscall resumed>) = 0 [pid 5876] umount2("./51", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 6140 attached ) = -1 EINVAL (Invalid argument) [pid 5874] umount2("./47", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6140] set_robust_list(0x5555947fb660, 24 [pid 5876] openat(AT_FDCWD, "./51", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6140] <... set_robust_list resumed>) = 0 [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 52 [pid 5876] <... openat resumed>) = 3 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6140] chdir("./50" [pid 5876] newfstatat(3, "", [pid 6140] <... chdir resumed>) = 0 [pid 5874] openat(AT_FDCWD, "./47", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6140] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6140] <... prctl resumed>) = 0 [pid 5874] <... openat resumed>) = 3 [pid 6140] setpgid(0, 0 [pid 5876] getdents64(3, [pid 5874] newfstatat(3, "", [pid 6140] <... setpgid resumed>) = 0 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6140] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5874] getdents64(3, [pid 6140] <... symlink resumed>) = 0 [pid 5876] umount2("./51/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6140] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6140] <... symlink resumed>) = 0 [pid 5876] newfstatat(AT_FDCWD, "./51/binderfs", [pid 5874] umount2("./47/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6140] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6140] <... symlink resumed>) = 0 [pid 5876] unlink("./51/binderfs" [pid 5874] newfstatat(AT_FDCWD, "./47/binderfs", [pid 6140] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] <... unlink resumed>) = 0 [pid 5876] umount2("./51/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] unlink("./47/binderfs" [pid 6140] <... openat resumed>) = 3 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] newfstatat(AT_FDCWD, "./51/cgroup.net", [pid 6140] write(3, "1000", 4 [pid 5874] <... unlink resumed>) = 0 [pid 6140] <... write resumed>) = 4 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] umount2("./47/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6140] close(3 [pid 5876] unlink("./51/cgroup.net" [pid 6140] <... close resumed>) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6140] read(200, 0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6140] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6139] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6140] write(1, "executing program\n", 18 [pid 6138] <... close resumed>) = 0 [pid 6139] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5876] <... unlink resumed>) = 0 [pid 5874] newfstatat(AT_FDCWD, "./47/cgroup.net", executing program [pid 6140] <... write resumed>) = 18 [pid 6139] <... bpf resumed>) = 4 [pid 6138] close(4 [pid 5876] umount2("./51/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6140] perf_event_open( [pid 6139] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6138] <... close resumed>) = 0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6140] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6138] close(5 [pid 5876] newfstatat(AT_FDCWD, "./51/cgroup.cpu", [pid 5874] unlink("./47/cgroup.net" [pid 6140] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6138] <... close resumed>) = 0 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6138] close(6 [pid 5876] unlink("./51/cgroup.cpu" [pid 5874] <... unlink resumed>) = 0 [pid 6140] <... bpf resumed>) = 4 [pid 6138] <... close resumed>) = 0 [pid 6140] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5874] umount2("./47/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6139] <... bpf resumed>) = 5 [pid 6138] close(7 [pid 5876] <... unlink resumed>) = 0 [pid 5876] umount2("./51/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5876] newfstatat(AT_FDCWD, "./51/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] unlink("./51/cgroup") = 0 [pid 5876] getdents64(3, [pid 6140] <... bpf resumed>) = 5 [pid 6139] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6138] <... close resumed>) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6140] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6138] close(8 [pid 5876] close(3 [pid 5874] newfstatat(AT_FDCWD, "./47/cgroup.cpu", [pid 6139] <... bpf resumed>) = 6 [pid 6138] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... close resumed>) = 0 [pid 6139] perf_event_open( [pid 6138] close(9 [pid 5876] rmdir("./51" [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6140] <... bpf resumed>) = 6 [pid 6138] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... rmdir resumed>) = 0 [pid 6139] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5876] mkdir("./52", 0777 [pid 6138] close(10 [pid 6140] perf_event_open( [pid 5874] unlink("./47/cgroup.cpu" [pid 5876] <... mkdir resumed>) = 0 [pid 6140] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6139] close(3 [pid 6138] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6140] close(3 [pid 6138] close(11 [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6138] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6138] close(12) = -1 EBADF (Bad file descriptor) [pid 6139] <... close resumed>) = 0 [pid 6138] close(13 [pid 5874] <... unlink resumed>) = 0 [pid 6138] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6138] close(14) = -1 EBADF (Bad file descriptor) [pid 6138] close(15) = -1 EBADF (Bad file descriptor) [pid 6138] close(16) = -1 EBADF (Bad file descriptor) [pid 6138] close(17) = -1 EBADF (Bad file descriptor) [pid 6138] close(18 [pid 6139] close(4 [pid 6138] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6138] close(19) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./47/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6139] <... close resumed>) = 0 [pid 6139] close(5 [pid 6138] close(20 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 6141 attached [pid 6138] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6141] set_robust_list(0x5555947fb660, 24 [pid 6138] close(21 [pid 5874] newfstatat(AT_FDCWD, "./47/cgroup", [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 54 [pid 6138] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6138] close(22) = -1 EBADF (Bad file descriptor) [pid 6138] close(23) = -1 EBADF (Bad file descriptor) [pid 6141] <... set_robust_list resumed>) = 0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] unlink("./47/cgroup" [pid 6138] close(24 [pid 6141] chdir("./52" [pid 6138] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... unlink resumed>) = 0 [pid 6139] <... close resumed>) = 0 [pid 6138] close(25 [pid 6141] <... chdir resumed>) = 0 [pid 6140] <... close resumed>) = 0 [pid 5874] getdents64(3, [pid 6141] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6140] close(4 [pid 6139] close(6 [pid 6141] <... prctl resumed>) = 0 [pid 6140] <... close resumed>) = 0 [pid 6138] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6140] close(5 [pid 6138] close(26 [pid 6140] <... close resumed>) = 0 [pid 6138] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6138] close(27 [pid 6140] close(6 [pid 6138] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] close(3 [pid 6141] setpgid(0, 0 [pid 6138] close(28) = -1 EBADF (Bad file descriptor) [pid 6138] close(29 [pid 6141] <... setpgid resumed>) = 0 [pid 6138] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6138] exit_group(0 [pid 6141] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 6140] <... close resumed>) = 0 [pid 6139] <... close resumed>) = 0 [pid 5874] <... close resumed>) = 0 [pid 6140] close(7 [pid 6139] close(7 [pid 6138] <... exit_group resumed>) = ? [pid 5874] rmdir("./47" [pid 6141] <... symlink resumed>) = 0 [pid 6140] <... close resumed>) = 0 [pid 6139] <... close resumed>) = 0 [pid 6141] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 6140] close(8 [pid 6141] <... symlink resumed>) = 0 [pid 6140] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6139] close(8 [pid 6138] +++ exited with 0 +++ [pid 5874] <... rmdir resumed>) = 0 [pid 6141] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 6140] close(9 [pid 6139] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] mkdir("./48", 0777 [pid 6141] <... symlink resumed>) = 0 [pid 6140] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6139] close(9 [pid 5874] <... mkdir resumed>) = 0 [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=51, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6140] close(10 [pid 6139] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6141] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6140] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6139] close(10./strace-static-x86_64: Process 6142 attached [pid 6140] close(11 [pid 6139] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6142] set_robust_list(0x5555947fb660, 24 [pid 6140] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6139] close(11 [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 50 [pid 6142] <... set_robust_list resumed>) = 0 [pid 6141] <... openat resumed>) = 3 [pid 6140] close(12 [pid 6139] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6142] chdir("./48" [pid 6141] write(3, "1000", 4 [pid 6140] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6139] close(12 [pid 6141] <... write resumed>) = 4 [pid 6140] close(13 [pid 6139] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6142] <... chdir resumed>) = 0 [pid 6140] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6139] close(13 [pid 6142] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6141] close(3 [pid 6140] close(14 [pid 6139] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6142] <... prctl resumed>) = 0 [pid 6140] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6139] close(14 [pid 6142] setpgid(0, 0 [pid 6141] <... close resumed>) = 0 [pid 6140] close(15 [pid 6139] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6142] <... setpgid resumed>) = 0 [pid 6141] read(200, [pid 6140] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6139] close(15 [pid 6142] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 6141] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6140] close(16 [pid 6139] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6141] symlink("/dev/binderfs", "./binderfs" [pid 6140] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6139] close(16 [pid 6142] <... symlink resumed>) = 0 [pid 6141] <... symlink resumed>) = 0 [pid 6140] close(17 [pid 6139] <... close resumed>) = -1 EBADF (Bad file descriptor) executing program [pid 6142] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 6141] write(1, "executing program\n", 18 [pid 6140] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6139] close(17 [pid 6142] <... symlink resumed>) = 0 [pid 6141] <... write resumed>) = 18 [pid 6140] close(18 [pid 6139] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6142] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 6140] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6139] close(18 [pid 6142] <... symlink resumed>) = 0 [pid 6141] perf_event_open( [pid 6140] close(19 [pid 6142] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6140] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6139] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6142] <... openat resumed>) = 3 [pid 6141] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6140] close(20 [pid 6142] write(3, "1000", 4 [pid 6139] close(19 [pid 6142] <... write resumed>) = 4 [pid 6141] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6140] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6139] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6142] close(3 [pid 6141] <... bpf resumed>) = 4 [pid 6140] close(21 [pid 6139] close(20 [pid 6140] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6142] <... close resumed>) = 0 [pid 6141] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6139] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6142] read(200, [pid 6140] close(22 [pid 6139] close(21 [pid 6142] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6140] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6139] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6142] symlink("/dev/binderfs", "./binderfs" [pid 5873] umount2("./49", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6140] close(23 [pid 6139] close(22 [pid 6140] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6140] close(24 [pid 6139] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6142] <... symlink resumed>) = 0 [pid 6141] <... bpf resumed>) = 5 [pid 6140] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6139] close(23 [pid 6142] write(1, "executing program\n", 18 [pid 6141] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24executing program [pid 6140] close(25 [pid 6139] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] openat(AT_FDCWD, "./49", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6142] <... write resumed>) = 18 [pid 6141] <... bpf resumed>) = 6 [pid 6140] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6139] close(24 [pid 5873] <... openat resumed>) = 3 [pid 6142] perf_event_open( [pid 6141] perf_event_open( [pid 6140] close(26 [pid 6139] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] newfstatat(3, "", [pid 6140] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6139] close(25 [pid 6141] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6140] close(27 [pid 6139] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6142] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6139] close(26 [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6140] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6139] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6140] close(28 [pid 6139] close(27 [pid 6140] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] getdents64(3, [pid 6139] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6140] close(29 [pid 6139] close(28 [pid 6140] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6139] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6141] close(3 [pid 6142] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6140] exit_group(0 [pid 6139] close(29 [pid 5873] umount2("./49/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6142] <... bpf resumed>) = 4 [pid 6141] <... close resumed>) = 0 [pid 6140] <... exit_group resumed>) = ? [pid 6139] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6141] close(4 [pid 6142] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6141] <... close resumed>) = 0 [pid 6140] +++ exited with 0 +++ [pid 6139] exit_group(0 [pid 5873] newfstatat(AT_FDCWD, "./49/binderfs", [pid 6141] close(5 [pid 6139] <... exit_group resumed>) = ? [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=52, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6142] <... bpf resumed>) = 5 [pid 6141] <... close resumed>) = 0 [pid 5873] unlink("./49/binderfs" [pid 6142] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6141] close(6 [pid 5873] <... unlink resumed>) = 0 [pid 6141] <... close resumed>) = 0 [pid 6142] <... bpf resumed>) = 6 [pid 6141] close(7 [pid 6139] +++ exited with 0 +++ [pid 5873] umount2("./49/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=51, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6142] perf_event_open( [pid 5873] newfstatat(AT_FDCWD, "./49/cgroup.net", [pid 6141] <... close resumed>) = 0 [pid 6142] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6141] close(8 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6142] close(3 [pid 6141] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./49", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5877] umount2("./50", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] unlink("./49/cgroup.net" [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6141] close(9 [pid 5877] openat(AT_FDCWD, "./50", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... unlink resumed>) = 0 [pid 6141] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] openat(AT_FDCWD, "./49", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6141] close(10 [pid 5877] <... openat resumed>) = 3 [pid 5873] umount2("./49/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6141] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(3, "", [pid 5875] <... openat resumed>) = 3 [pid 6141] close(11 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6141] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5875] newfstatat(3, "", [pid 5873] newfstatat(AT_FDCWD, "./49/cgroup.cpu", [pid 6141] close(12 [pid 5877] getdents64(3, [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5873] unlink("./49/cgroup.cpu" [pid 5877] umount2("./50/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... unlink resumed>) = 0 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] umount2("./49/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5877] newfstatat(AT_FDCWD, "./50/binderfs", [pid 6141] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] unlink("./50/binderfs" [pid 5873] newfstatat(AT_FDCWD, "./49/cgroup", [pid 6141] close(13 [pid 5877] <... unlink resumed>) = 0 [pid 5875] getdents64(3, [pid 6141] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6141] close(14 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5877] umount2("./50/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] unlink("./49/cgroup" [pid 6141] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] umount2("./49/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... unlink resumed>) = 0 [pid 6141] close(15 [pid 5877] newfstatat(AT_FDCWD, "./50/cgroup.net", [pid 6141] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] getdents64(3, [pid 6141] close(16 [pid 5877] unlink("./50/cgroup.net" [pid 5875] newfstatat(AT_FDCWD, "./49/binderfs", [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6141] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 5873] close(3 [pid 6141] close(17 [pid 5877] umount2("./50/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6141] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... close resumed>) = 0 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] newfstatat(AT_FDCWD, "./50/cgroup.cpu", [pid 5873] rmdir("./49" [pid 6141] close(18 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] unlink("./49/binderfs" [pid 6141] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./50/cgroup.cpu" [pid 5873] <... rmdir resumed>) = 0 [pid 6141] close(19 [pid 5877] <... unlink resumed>) = 0 [pid 6141] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6141] close(20) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./50/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] mkdir("./50", 0777 [pid 5875] <... unlink resumed>) = 0 [pid 6141] close(21 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... mkdir resumed>) = 0 [pid 6141] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./50/cgroup", [pid 5875] umount2("./49/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6141] close(22 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6141] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6141] close(23) = -1 EBADF (Bad file descriptor) [pid 6141] close(24./strace-static-x86_64: Process 6143 attached [pid 6142] <... close resumed>) = 0 [pid 5877] unlink("./50/cgroup" [pid 5875] newfstatat(AT_FDCWD, "./49/cgroup.net", [pid 6143] set_robust_list(0x5555947fb660, 24 [pid 6142] close(4 [pid 6141] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 52 [pid 6143] <... set_robust_list resumed>) = 0 [pid 6141] close(25 [pid 5877] getdents64(3, [pid 6143] chdir("./50" [pid 6142] <... close resumed>) = 0 [pid 6141] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5875] unlink("./49/cgroup.net" [pid 6143] <... chdir resumed>) = 0 [pid 6142] close(5 [pid 6141] close(26 [pid 5877] close(3 [pid 5875] <... unlink resumed>) = 0 [pid 6143] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6141] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6143] <... prctl resumed>) = 0 [pid 6141] close(27 [pid 5877] <... close resumed>) = 0 [pid 5875] umount2("./49/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6143] setpgid(0, 0 [pid 6142] <... close resumed>) = 0 [pid 6141] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] rmdir("./50" [pid 6142] close(6 [pid 6143] <... setpgid resumed>) = 0 [pid 6141] close(28 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6143] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5877] <... rmdir resumed>) = 0 [pid 6143] <... symlink resumed>) = 0 [pid 6141] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(AT_FDCWD, "./49/cgroup.cpu", [pid 6142] <... close resumed>) = 0 [pid 6141] close(29 [pid 5877] mkdir("./51", 0777 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6143] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 6142] close(7 [pid 6141] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] unlink("./49/cgroup.cpu" [pid 6143] <... symlink resumed>) = 0 [pid 6142] <... close resumed>) = 0 [pid 5877] <... mkdir resumed>) = 0 [pid 6142] close(8 [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6143] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 6142] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6141] exit_group(0 [pid 5875] <... unlink resumed>) = 0 [pid 6142] close(9) = -1 EBADF (Bad file descriptor) [pid 6143] <... symlink resumed>) = 0 [pid 6141] <... exit_group resumed>) = ? [pid 6142] close(10 [pid 6143] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5875] umount2("./49/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6142] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6142] close(11) = -1 EBADF (Bad file descriptor) [pid 6142] close(12) = -1 EBADF (Bad file descriptor) [pid 6142] close(13) = -1 EBADF (Bad file descriptor) [pid 6142] close(14) = -1 EBADF (Bad file descriptor) [pid 6142] close(15) = -1 EBADF (Bad file descriptor) [pid 6142] close(16) = -1 EBADF (Bad file descriptor) [pid 6142] close(17./strace-static-x86_64: Process 6144 attached ) = -1 EBADF (Bad file descriptor) [pid 6144] set_robust_list(0x5555947fb660, 24 [pid 6142] close(18 [pid 6144] <... set_robust_list resumed>) = 0 [pid 6142] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 53 [pid 6144] chdir("./51" [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6142] close(19 [pid 6144] <... chdir resumed>) = 0 [pid 6143] <... openat resumed>) = 3 [pid 6142] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(AT_FDCWD, "./49/cgroup", [pid 6144] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6143] write(3, "1000", 4 [pid 6142] close(20 [pid 6144] <... prctl resumed>) = 0 [pid 6143] <... write resumed>) = 4 [pid 6142] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6144] setpgid(0, 0 [pid 6142] close(21 [pid 5875] unlink("./49/cgroup" [pid 6144] <... setpgid resumed>) = 0 [pid 6142] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6144] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 6143] close(3 [pid 5875] <... unlink resumed>) = 0 [pid 5875] getdents64(3, [pid 6142] close(22 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6144] <... symlink resumed>) = 0 [pid 6142] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6143] <... close resumed>) = 0 [pid 6142] close(23 [pid 5875] close(3 [pid 6144] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 6143] read(200, [pid 6142] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6141] +++ exited with 0 +++ [pid 5875] <... close resumed>) = 0 [pid 6144] <... symlink resumed>) = 0 [pid 6143] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6142] close(24 [pid 6144] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 6142] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6144] <... symlink resumed>) = 0 [pid 6143] symlink("/dev/binderfs", "./binderfs" [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=54, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5875] rmdir("./49" [pid 6144] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6142] close(25 [pid 6144] <... openat resumed>) = 3 [pid 5876] restart_syscall(<... resuming interrupted clone ...> [pid 5875] <... rmdir resumed>) = 0 [pid 6142] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6143] <... symlink resumed>) = 0 [pid 6142] close(26 [pid 5875] mkdir("./50", 0777 [pid 6144] write(3, "1000", 4 [pid 6142] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6144] <... write resumed>) = 4 [pid 6142] close(27 [pid 6144] close(3 [pid 6142] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6144] <... close resumed>) = 0 [pid 6143] write(1, "executing program\n", 18executing program [pid 6142] close(28 [pid 5875] <... mkdir resumed>) = 0 [pid 6144] read(200, [pid 6143] <... write resumed>) = 18 [pid 6142] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6144] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6142] close(29 [pid 6144] symlink("/dev/binderfs", "./binderfs" [pid 6142] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6144] <... symlink resumed>) = 0 [pid 6143] perf_event_open( [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6142] exit_group(0./strace-static-x86_64: Process 6145 attached executing program [pid 6144] write(1, "executing program\n", 18 [pid 6143] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5876] <... restart_syscall resumed>) = 0 [pid 6145] set_robust_list(0x5555947fb660, 24 [pid 6144] <... write resumed>) = 18 [pid 6143] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6142] <... exit_group resumed>) = ? [pid 6145] <... set_robust_list resumed>) = 0 [pid 6144] perf_event_open( [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 52 [pid 6145] chdir("./50" [pid 6144] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6143] <... bpf resumed>) = 4 [pid 5876] umount2("./52", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6145] <... chdir resumed>) = 0 [pid 6144] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6145] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6143] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6145] <... prctl resumed>) = 0 [pid 6145] setpgid(0, 0 [pid 6144] <... bpf resumed>) = 4 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] openat(AT_FDCWD, "./52", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 6143] <... bpf resumed>) = 5 [pid 5876] newfstatat(3, "", [pid 6142] +++ exited with 0 +++ [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6145] <... setpgid resumed>) = 0 [pid 6144] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6143] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=50, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6145] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5876] getdents64(3, [pid 5874] restart_syscall(<... resuming interrupted clone ...> [pid 6145] <... symlink resumed>) = 0 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6145] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 6143] <... bpf resumed>) = 6 [pid 5876] umount2("./52/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6145] <... symlink resumed>) = 0 [pid 5876] newfstatat(AT_FDCWD, "./52/binderfs", [pid 6144] <... bpf resumed>) = 5 [pid 6145] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 6143] perf_event_open( [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6145] <... symlink resumed>) = 0 [pid 6144] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6143] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5876] unlink("./52/binderfs" [pid 6145] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6144] <... bpf resumed>) = 6 [pid 6143] close(3 [pid 5874] <... restart_syscall resumed>) = 0 [pid 6145] <... openat resumed>) = 3 [pid 6144] perf_event_open( [pid 6143] <... close resumed>) = 0 [pid 5876] <... unlink resumed>) = 0 [pid 6145] write(3, "1000", 4 [pid 6144] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6143] close(4 [pid 5876] umount2("./52/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6145] <... write resumed>) = 4 [pid 6144] close(3 [pid 6145] close(3 [pid 6143] <... close resumed>) = 0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] umount2("./48", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6145] <... close resumed>) = 0 [pid 6143] close(5 [pid 5876] newfstatat(AT_FDCWD, "./52/cgroup.net", [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6145] read(200, [pid 5874] openat(AT_FDCWD, "./48", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6145] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6143] <... close resumed>) = 0 [pid 6145] symlink("/dev/binderfs", "./binderfs" [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] <... openat resumed>) = 3 [pid 6145] <... symlink resumed>) = 0 [pid 6143] close(6 [pid 5876] unlink("./52/cgroup.net" [pid 5874] newfstatat(3, "", [pid 5876] <... unlink resumed>) = 0 executing program [pid 6145] write(1, "executing program\n", 18 [pid 5876] umount2("./52/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6145] <... write resumed>) = 18 [pid 6143] <... close resumed>) = 0 [pid 6145] perf_event_open( [pid 6143] close(7 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6143] <... close resumed>) = 0 [pid 5876] newfstatat(AT_FDCWD, "./52/cgroup.cpu", [pid 5874] getdents64(3, [pid 6143] close(8 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6143] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] unlink("./52/cgroup.cpu" [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6143] close(9 [pid 5876] <... unlink resumed>) = 0 [pid 5876] umount2("./52/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5876] newfstatat(AT_FDCWD, "./52/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6143] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./48/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6143] close(10 [pid 5876] unlink("./52/cgroup" [pid 6143] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6143] close(11 [pid 5876] getdents64(3, [pid 5874] newfstatat(AT_FDCWD, "./48/binderfs", [pid 6143] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5876] close(3) = 0 [pid 5876] rmdir("./52" [pid 6143] close(12 [pid 5876] <... rmdir resumed>) = 0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6143] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] mkdir("./53", 0777 [pid 6143] close(13) = -1 EBADF (Bad file descriptor) [pid 5874] unlink("./48/binderfs" [pid 6143] close(14 [pid 5876] <... mkdir resumed>) = 0 [pid 6143] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6143] close(15 [pid 5874] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 6146 attached [pid 6143] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./48/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6143] close(16) = -1 EBADF (Bad file descriptor) [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 55 [pid 6146] set_robust_list(0x5555947fb660, 24 [pid 6145] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6144] <... close resumed>) = 0 [pid 6143] close(17 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6146] <... set_robust_list resumed>) = 0 [pid 6145] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6144] close(4 [pid 6146] chdir("./53" [pid 6145] <... bpf resumed>) = 4 [pid 6143] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] newfstatat(AT_FDCWD, "./48/cgroup.net", [pid 6146] <... chdir resumed>) = 0 [pid 6145] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6144] <... close resumed>) = 0 [pid 6143] close(18 [pid 6146] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6146] <... prctl resumed>) = 0 [pid 6144] close(5 [pid 6143] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] unlink("./48/cgroup.net" [pid 6146] setpgid(0, 0 [pid 6145] <... bpf resumed>) = 5 [pid 6144] <... close resumed>) = 0 [pid 6143] close(19 [pid 5874] <... unlink resumed>) = 0 [pid 6146] <... setpgid resumed>) = 0 [pid 6145] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6144] close(6 [pid 6143] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./48/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6146] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 6144] <... close resumed>) = 0 [pid 6143] close(20 [pid 6145] <... bpf resumed>) = 6 [pid 6144] close(7 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6143] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6145] perf_event_open( [pid 6144] <... close resumed>) = 0 [pid 6146] <... symlink resumed>) = 0 [pid 5874] newfstatat(AT_FDCWD, "./48/cgroup.cpu", [pid 6143] close(21 [pid 6146] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 6145] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6143] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6144] close(8 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6145] close(3 [pid 6144] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6143] close(22 [pid 6146] <... symlink resumed>) = 0 [pid 6144] close(9 [pid 6143] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] unlink("./48/cgroup.cpu" [pid 6143] close(23 [pid 5874] <... unlink resumed>) = 0 [pid 6146] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 6143] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6146] <... symlink resumed>) = 0 [pid 6143] close(24 [pid 5874] umount2("./48/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6146] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6143] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6146] <... openat resumed>) = 3 [pid 6144] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6143] close(25 [pid 6144] close(10) = -1 EBADF (Bad file descriptor) [pid 6146] write(3, "1000", 4 [pid 6143] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] newfstatat(AT_FDCWD, "./48/cgroup", [pid 6146] <... write resumed>) = 4 [pid 6143] close(26 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6146] close(3 [pid 6144] close(11 [pid 6143] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6146] <... close resumed>) = 0 [pid 6144] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6143] close(27 [pid 5874] unlink("./48/cgroup" [pid 6146] read(200, [pid 6144] close(12 [pid 6143] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... unlink resumed>) = 0 [pid 6146] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6144] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6143] close(28 [pid 6144] close(13 [pid 6146] symlink("/dev/binderfs", "./binderfs" [pid 6144] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6143] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] getdents64(3, [pid 6144] close(14 [pid 6143] close(29 [pid 6144] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6146] <... symlink resumed>) = 0 [pid 6143] <... close resumed>) = -1 EBADF (Bad file descriptor) executing program [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6144] close(15 [pid 6146] write(1, "executing program\n", 18 [pid 6144] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6143] exit_group(0 [pid 5874] close(3 [pid 6146] <... write resumed>) = 18 [pid 6144] close(16 [pid 6143] <... exit_group resumed>) = ? [pid 5874] <... close resumed>) = 0 [pid 6144] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6144] close(17) = -1 EBADF (Bad file descriptor) [pid 5874] rmdir("./48" [pid 6144] close(18) = -1 EBADF (Bad file descriptor) [pid 6144] close(19) = -1 EBADF (Bad file descriptor) [pid 6144] close(20) = -1 EBADF (Bad file descriptor) [pid 6144] close(21) = -1 EBADF (Bad file descriptor) [pid 6144] close(22) = -1 EBADF (Bad file descriptor) [pid 6146] perf_event_open( [pid 6143] +++ exited with 0 +++ [pid 5874] <... rmdir resumed>) = 0 [pid 6144] close(23) = -1 EBADF (Bad file descriptor) [pid 5874] mkdir("./49", 0777 [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=52, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6144] close(24) = -1 EBADF (Bad file descriptor) [pid 5874] <... mkdir resumed>) = 0 [pid 6144] close(25 [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6144] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] umount2("./50", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6144] close(26) = -1 EBADF (Bad file descriptor) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6144] close(27 [pid 5873] openat(AT_FDCWD, "./50", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6144] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6144] close(28 [pid 5873] <... openat resumed>) = 3 [pid 6144] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] newfstatat(3, "", ./strace-static-x86_64: Process 6147 attached [pid 6144] close(29 [pid 6147] set_robust_list(0x5555947fb660, 24 [pid 6144] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6147] <... set_robust_list resumed>) = 0 [pid 6144] exit_group(0 [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 51 [pid 5873] getdents64(3, [pid 6147] chdir("./49" [pid 6144] <... exit_group resumed>) = ? [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6147] <... chdir resumed>) = 0 [pid 6147] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5873] umount2("./50/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6147] <... prctl resumed>) = 0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6147] setpgid(0, 0 [pid 5873] newfstatat(AT_FDCWD, "./50/binderfs", [pid 6147] <... setpgid resumed>) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6147] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5873] unlink("./50/binderfs" [pid 6144] +++ exited with 0 +++ [pid 5873] <... unlink resumed>) = 0 [pid 6147] <... symlink resumed>) = 0 [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=53, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5873] umount2("./50/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5877] restart_syscall(<... resuming interrupted clone ...> [pid 6147] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu") = 0 [pid 5877] <... restart_syscall resumed>) = 0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6147] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5873] newfstatat(AT_FDCWD, "./50/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6147] <... symlink resumed>) = 0 [pid 5873] unlink("./50/cgroup.net") = 0 [pid 5873] umount2("./50/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5873] newfstatat(AT_FDCWD, "./50/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] unlink("./50/cgroup.cpu" [pid 6147] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6146] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6145] <... close resumed>) = 0 [pid 5877] umount2("./51", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... unlink resumed>) = 0 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6145] close(4 [pid 6147] <... openat resumed>) = 3 [pid 6146] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5877] openat(AT_FDCWD, "./51", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5873] umount2("./50/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6147] write(3, "1000", 4 [pid 6146] <... bpf resumed>) = 4 [pid 6145] <... close resumed>) = 0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6147] <... write resumed>) = 4 [pid 6145] close(5 [pid 5877] <... openat resumed>) = 3 [pid 5873] newfstatat(AT_FDCWD, "./50/cgroup", [pid 6147] close(3 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6147] <... close resumed>) = 0 [pid 6145] <... close resumed>) = 0 [pid 6147] read(200, executing program [pid 6146] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5877] newfstatat(3, "", [pid 5873] unlink("./50/cgroup" [pid 6147] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6145] close(6 [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5873] <... unlink resumed>) = 0 [pid 6147] symlink("/dev/binderfs", "./binderfs" [pid 5873] getdents64(3, [pid 6147] <... symlink resumed>) = 0 [pid 6147] write(1, "executing program\n", 18 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6147] <... write resumed>) = 18 [pid 5873] close(3 [pid 6147] perf_event_open( [pid 6146] <... bpf resumed>) = 5 [pid 6145] <... close resumed>) = 0 [pid 5877] getdents64(3, [pid 5873] <... close resumed>) = 0 [pid 6145] close(7 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5873] rmdir("./50" [pid 6147] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6146] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6145] <... close resumed>) = 0 [pid 5877] umount2("./51/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6145] close(8 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... rmdir resumed>) = 0 [pid 6145] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./51/binderfs", [pid 6145] close(9 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6145] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./51/binderfs" [pid 6145] close(10 [pid 5877] <... unlink resumed>) = 0 [pid 5873] mkdir("./51", 0777 [pid 6147] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6145] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./51/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... mkdir resumed>) = 0 [pid 6147] <... bpf resumed>) = 4 [pid 6145] close(11 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6147] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6145] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./51/cgroup.net", [pid 6146] <... bpf resumed>) = 6 [pid 6145] close(12 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6145] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./51/cgroup.net" [pid 6145] close(13 [pid 5877] <... unlink resumed>) = 0 [pid 6145] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6145] close(14 [pid 5877] umount2("./51/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6145] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6145] close(15) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./51/cgroup.cpu", [pid 6145] close(16 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6145] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./51/cgroup.cpu" [pid 6145] close(17 [pid 5877] <... unlink resumed>) = 0 [pid 6145] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./51/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6145] close(18 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6145] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6145] close(19 [pid 5877] newfstatat(AT_FDCWD, "./51/cgroup", [pid 6145] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6145] close(20 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6145] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6145] close(21 [pid 5877] unlink("./51/cgroup" [pid 6145] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6145] close(22 [pid 5877] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 6148 attached [pid 6145] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6146] perf_event_open( [pid 6148] set_robust_list(0x5555947fb660, 24 [pid 6145] close(23 [pid 5877] getdents64(3, [pid 6148] <... set_robust_list resumed>) = 0 [pid 6145] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6148] chdir("./51" [pid 6145] close(24 [pid 5877] close(3 [pid 6148] <... chdir resumed>) = 0 [pid 6145] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... close resumed>) = 0 [pid 6148] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6146] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6145] close(25 [pid 5877] rmdir("./51" [pid 6148] <... prctl resumed>) = 0 [pid 6145] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... rmdir resumed>) = 0 [pid 6148] setpgid(0, 0 [pid 6145] close(26 [pid 6148] <... setpgid resumed>) = 0 [pid 6145] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] mkdir("./52", 0777 [pid 6148] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 6145] close(27) = -1 EBADF (Bad file descriptor) [pid 5877] <... mkdir resumed>) = 0 [pid 6147] <... bpf resumed>) = 5 [pid 6146] close(3 [pid 6145] close(28 [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 53 [pid 6148] <... symlink resumed>) = 0 [pid 6147] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6146] <... close resumed>) = 0 [pid 6145] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 6149 attached [pid 6148] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 6147] <... bpf resumed>) = 6 [pid 6146] close(4 [pid 6145] close(29 [pid 6149] set_robust_list(0x5555947fb660, 24 [pid 6148] <... symlink resumed>) = 0 [pid 6147] perf_event_open( [pid 6146] <... close resumed>) = 0 [pid 6145] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6149] <... set_robust_list resumed>) = 0 [pid 6148] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 54 [pid 6146] close(5 [pid 6149] chdir("./52" [pid 6148] <... symlink resumed>) = 0 [pid 6147] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6146] <... close resumed>) = 0 [pid 6145] exit_group(0 [pid 6149] <... chdir resumed>) = 0 [pid 6148] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6147] close(3 [pid 6145] <... exit_group resumed>) = ? [pid 6149] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6148] <... openat resumed>) = 3 [pid 6146] close(6 [pid 6149] <... prctl resumed>) = 0 [pid 6148] write(3, "1000", 4 [pid 6149] setpgid(0, 0) = 0 [pid 6149] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 6148] <... write resumed>) = 4 [pid 6148] close(3) = 0 [pid 6148] read(200, 0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6148] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 6149] <... symlink resumed>) = 0 [pid 6148] write(1, "executing program\n", 18 [pid 6149] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 6148] <... write resumed>) = 18 [pid 6149] <... symlink resumed>) = 0 [pid 6148] perf_event_open( [pid 6146] <... close resumed>) = 0 [pid 6145] +++ exited with 0 +++ [pid 6149] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 6146] close(7 [pid 6149] <... symlink resumed>) = 0 [pid 6146] <... close resumed>) = 0 [pid 6149] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6146] close(8 [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=52, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 6147] <... close resumed>) = 0 [pid 6149] <... openat resumed>) = 3 [pid 6148] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6147] close(4 [pid 6146] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] restart_syscall(<... resuming interrupted clone ...> [pid 6149] write(3, "1000", 4 [pid 6148] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6146] close(9 [pid 5875] <... restart_syscall resumed>) = 0 [pid 6149] <... write resumed>) = 4 [pid 6148] <... bpf resumed>) = 4 [pid 6147] <... close resumed>) = 0 [pid 6146] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6149] close(3 [pid 6148] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6146] close(10 [pid 6149] <... close resumed>) = 0 [pid 6147] close(5 [pid 6149] read(200, [pid 6147] <... close resumed>) = 0 [pid 6146] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./50", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6149] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6148] <... bpf resumed>) = 5 [pid 6147] close(6) = 0 [pid 6146] close(11 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6149] symlink("/dev/binderfs", "./binderfs" [pid 6148] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6146] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] openat(AT_FDCWD, "./50", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6147] close(7 [pid 5875] <... openat resumed>) = 3 [pid 6146] close(12 [pid 6149] <... symlink resumed>) = 0 [pid 6148] <... bpf resumed>) = 6 [pid 6147] <... close resumed>) = 0 [pid 6146] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(3, "", executing program [pid 6149] write(1, "executing program\n", 18 [pid 6148] perf_event_open( [pid 6147] close(8 [pid 6146] close(13 [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6149] <... write resumed>) = 18 [pid 6148] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6147] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6147] close(9 [pid 6146] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] getdents64(3, [pid 6147] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6146] close(14 [pid 6149] perf_event_open( [pid 6147] close(10 [pid 6146] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6147] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6147] close(11 [pid 6146] close(15 [pid 5875] umount2("./50/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6148] close(3 [pid 6147] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6146] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6149] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6147] close(12 [pid 6146] close(16 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6148] <... close resumed>) = 0 [pid 6146] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6149] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6148] close(4 [pid 6147] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6146] close(17 [pid 5875] newfstatat(AT_FDCWD, "./50/binderfs", [pid 6147] close(13 [pid 6146] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6146] close(18 [pid 5875] unlink("./50/binderfs" [pid 6146] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 [pid 6146] close(19) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./50/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6146] close(20 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6146] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6146] close(21 [pid 5875] newfstatat(AT_FDCWD, "./50/cgroup.net", [pid 6146] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6146] close(22 [pid 5875] unlink("./50/cgroup.net" [pid 6148] <... close resumed>) = 0 [pid 6147] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 [pid 6149] <... bpf resumed>) = 4 [pid 6147] close(14 [pid 6146] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./50/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6148] close(5 [pid 6147] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6146] close(23 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6149] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6146] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(AT_FDCWD, "./50/cgroup.cpu", [pid 6146] close(24 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6146] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] unlink("./50/cgroup.cpu" [pid 6146] close(25 [pid 5875] <... unlink resumed>) = 0 [pid 6146] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./50/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6146] close(26 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6146] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(AT_FDCWD, "./50/cgroup", [pid 6146] close(27 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6146] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] unlink("./50/cgroup" [pid 6146] close(28 [pid 6148] <... close resumed>) = 0 [pid 6147] close(15 [pid 6146] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 [pid 6146] close(29 [pid 5875] getdents64(3, [pid 6146] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6146] exit_group(0 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5875] close(3) = 0 [pid 5875] rmdir("./50" [pid 6146] <... exit_group resumed>) = ? [pid 5875] <... rmdir resumed>) = 0 [pid 6149] <... bpf resumed>) = 5 [pid 6148] close(6 [pid 6147] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] mkdir("./51", 0777 [pid 6149] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6146] +++ exited with 0 +++ [pid 6147] close(16 [pid 5875] <... mkdir resumed>) = 0 [pid 6147] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6147] close(17 [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6149] <... bpf resumed>) = 6 [pid 6148] <... close resumed>) = 0 [pid 6147] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 6150 attached [pid 6147] close(18 [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=55, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6150] set_robust_list(0x5555947fb660, 24 [pid 6148] close(7 [pid 6147] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 53 [pid 6150] <... set_robust_list resumed>) = 0 [pid 6149] perf_event_open( [pid 6148] <... close resumed>) = 0 [pid 6147] close(19 [pid 5876] umount2("./53", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6150] chdir("./51" [pid 6148] close(8 [pid 6150] <... chdir resumed>) = 0 [pid 6149] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6148] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6147] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6150] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6148] close(9 [pid 6147] close(20 [pid 5876] openat(AT_FDCWD, "./53", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6150] <... prctl resumed>) = 0 [pid 6148] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6150] setpgid(0, 0 [pid 6148] close(10 [pid 6150] <... setpgid resumed>) = 0 [pid 6148] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6150] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 6149] close(3 [pid 6148] close(11 [pid 6147] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... openat resumed>) = 3 [pid 6150] <... symlink resumed>) = 0 [pid 6148] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6147] close(21 [pid 5876] newfstatat(3, "", [pid 6150] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 6148] close(12 [pid 6147] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6148] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6150] <... symlink resumed>) = 0 [pid 6148] close(13 [pid 6147] close(22 [pid 6150] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 6148] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] getdents64(3, [pid 6147] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6148] close(14 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6150] <... symlink resumed>) = 0 [pid 6147] close(23) = -1 EBADF (Bad file descriptor) [pid 6147] close(24) = -1 EBADF (Bad file descriptor) [pid 6147] close(25) = -1 EBADF (Bad file descriptor) [pid 6150] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6148] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6147] close(26 [pid 5876] umount2("./53/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6148] close(15) = -1 EBADF (Bad file descriptor) [pid 6147] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6150] <... openat resumed>) = 3 [pid 6150] write(3, "1000", 4) = 4 [pid 6150] close(3) = 0 [pid 6150] read(200, [pid 5876] newfstatat(AT_FDCWD, "./53/binderfs", [pid 6148] close(16 [pid 6149] <... close resumed>) = 0 [pid 6147] close(27 [pid 6150] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6148] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6149] close(4 [pid 6147] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6150] symlink("/dev/binderfs", "./binderfs" [pid 6148] close(17 [pid 6147] close(28 [pid 5876] unlink("./53/binderfs"executing program [pid 6150] <... symlink resumed>) = 0 [pid 6149] <... close resumed>) = 0 [pid 6148] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6147] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6150] write(1, "executing program\n", 18 [pid 6148] close(18 [pid 6147] close(29 [pid 5876] <... unlink resumed>) = 0 [pid 6150] <... write resumed>) = 18 [pid 6149] close(5 [pid 6148] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6147] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6150] perf_event_open( [pid 6148] close(19 [pid 5876] umount2("./53/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6148] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6147] exit_group(0 [pid 6148] close(20 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6148] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6147] <... exit_group resumed>) = ? [pid 6150] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6150] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80) = 4 [pid 6147] +++ exited with 0 +++ [pid 6150] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6149] <... close resumed>) = 0 [pid 6148] close(21 [pid 5876] newfstatat(AT_FDCWD, "./53/cgroup.net", [pid 6149] close(6 [pid 6148] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6150] <... bpf resumed>) = 5 [pid 6148] close(22 [pid 5876] unlink("./53/cgroup.net" [pid 6148] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=51, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 6150] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6148] close(23 [pid 5876] <... unlink resumed>) = 0 [pid 5874] restart_syscall(<... resuming interrupted clone ...> [pid 6149] <... close resumed>) = 0 [pid 6150] <... bpf resumed>) = 6 [pid 6148] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./53/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... restart_syscall resumed>) = 0 [pid 6150] perf_event_open( [pid 6149] close(7 [pid 6148] close(24 [pid 6150] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6149] <... close resumed>) = 0 [pid 6148] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6150] close(3 [pid 6149] close(8 [pid 6148] close(25 [pid 5876] newfstatat(AT_FDCWD, "./53/cgroup.cpu", [pid 5874] umount2("./49", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6149] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6148] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6149] close(9 [pid 6148] close(26 [pid 6149] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6148] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] unlink("./53/cgroup.cpu" [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6149] close(10 [pid 6148] close(27 [pid 5876] <... unlink resumed>) = 0 [pid 5874] openat(AT_FDCWD, "./49", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6149] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6148] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./53/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... openat resumed>) = 3 [pid 6149] close(11 [pid 6148] close(28 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6149] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6148] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(AT_FDCWD, "./53/cgroup", [pid 5874] newfstatat(3, "", [pid 6149] close(12 [pid 6148] close(29 [pid 6149] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6149] close(13 [pid 6148] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6149] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6148] exit_group(0 [pid 5876] unlink("./53/cgroup" [pid 5874] getdents64(3, [pid 6149] close(14 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6150] <... close resumed>) = 0 [pid 6149] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6148] <... exit_group resumed>) = ? [pid 5876] <... unlink resumed>) = 0 [pid 5874] umount2("./49/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6150] close(4 [pid 6149] close(15 [pid 6150] <... close resumed>) = 0 [pid 6150] close(5 [pid 6149] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6148] +++ exited with 0 +++ [pid 5876] getdents64(3, [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6150] <... close resumed>) = 0 [pid 6149] close(16 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5874] newfstatat(AT_FDCWD, "./49/binderfs", [pid 6149] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6149] close(17 [pid 5874] unlink("./49/binderfs" [pid 6149] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... unlink resumed>) = 0 [pid 6149] close(18 [pid 5874] umount2("./49/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6149] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6149] close(19 [pid 5874] newfstatat(AT_FDCWD, "./49/cgroup.net", [pid 6149] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6149] close(20 [pid 5874] unlink("./49/cgroup.net" [pid 6149] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... unlink resumed>) = 0 [pid 6149] close(21 [pid 5874] umount2("./49/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6150] close(6 [pid 6149] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] close(3 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=53, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6149] close(22 [pid 5874] newfstatat(AT_FDCWD, "./49/cgroup.cpu", [pid 6149] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6149] close(23 [pid 5874] unlink("./49/cgroup.cpu" [pid 6149] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... unlink resumed>) = 0 [pid 6149] close(24 [pid 5874] umount2("./49/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6149] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6149] close(25 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6149] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6149] close(26 [pid 5874] newfstatat(AT_FDCWD, "./49/cgroup", [pid 6149] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6149] close(27 [pid 5874] unlink("./49/cgroup" [pid 6149] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6150] <... close resumed>) = 0 [pid 6149] close(28 [pid 5876] <... close resumed>) = 0 [pid 5874] <... unlink resumed>) = 0 [pid 5873] umount2("./51", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6150] close(7 [pid 6149] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] rmdir("./53" [pid 5874] getdents64(3, [pid 6149] close(29 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6149] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5876] <... rmdir resumed>) = 0 [pid 6150] <... close resumed>) = 0 [pid 6149] exit_group(0 [pid 5876] mkdir("./54", 0777 [pid 5874] close(3 [pid 5873] openat(AT_FDCWD, "./51", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6150] close(8 [pid 6149] <... exit_group resumed>) = ? [pid 5874] <... close resumed>) = 0 [pid 6150] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... mkdir resumed>) = 0 [pid 5874] rmdir("./49" [pid 5873] <... openat resumed>) = 3 [pid 6150] close(9 [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5874] <... rmdir resumed>) = 0 [pid 5873] newfstatat(3, "", [pid 6149] +++ exited with 0 +++ [pid 6150] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] mkdir("./50", 0777 [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=54, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5874] <... mkdir resumed>) = 0 [pid 5877] restart_syscall(<... resuming interrupted clone ...> [pid 5873] getdents64(3, [pid 6150] close(10) = -1 EBADF (Bad file descriptor) [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 ./strace-static-x86_64: Process 6151 attached [pid 6150] close(11 [pid 6151] set_robust_list(0x5555947fb660, 24 [pid 6150] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] umount2("./51/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6151] <... set_robust_list resumed>) = 0 [pid 6150] close(12 [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 56 ./strace-static-x86_64: Process 6152 attached [pid 6150] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6150] close(13 [pid 6151] chdir("./54" [pid 5873] newfstatat(AT_FDCWD, "./51/binderfs", [pid 6150] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6152] set_robust_list(0x5555947fb660, 24 [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 52 [pid 6152] <... set_robust_list resumed>) = 0 [pid 6152] chdir("./50" [pid 6151] <... chdir resumed>) = 0 [pid 6150] close(14 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6152] <... chdir resumed>) = 0 [pid 6151] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6150] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] unlink("./51/binderfs" [pid 6152] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6151] <... prctl resumed>) = 0 [pid 6150] close(15 [pid 6152] <... prctl resumed>) = 0 [pid 6152] setpgid(0, 0 [pid 5873] <... unlink resumed>) = 0 [pid 6152] <... setpgid resumed>) = 0 [pid 6152] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 6150] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... restart_syscall resumed>) = 0 [pid 5873] umount2("./51/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6151] setpgid(0, 0 [pid 6150] close(16 [pid 6151] <... setpgid resumed>) = 0 [pid 6150] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6152] <... symlink resumed>) = 0 [pid 6151] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5877] umount2("./52", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6150] close(17 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6150] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6152] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 6150] close(18 [pid 6152] <... symlink resumed>) = 0 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] newfstatat(AT_FDCWD, "./51/cgroup.net", [pid 6152] symlink("/syzcgroup/net/syz1", "./cgroup.net") = 0 [pid 6150] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] openat(AT_FDCWD, "./52", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6151] <... symlink resumed>) = 0 [pid 6150] close(19 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6150] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6151] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5873] unlink("./51/cgroup.net" [pid 6152] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6150] close(20 [pid 5877] <... openat resumed>) = 3 [pid 6152] <... openat resumed>) = 3 [pid 6150] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... unlink resumed>) = 0 [pid 6152] write(3, "1000", 4) = 4 [pid 6150] close(21 [pid 6152] close(3) = 0 [pid 5873] umount2("./51/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6150] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(3, "", [pid 6150] close(22 [pid 6152] read(200, [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6150] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6152] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6152] symlink("/dev/binderfs", "./binderfs" [pid 6150] close(23executing program [pid 6152] <... symlink resumed>) = 0 [pid 6151] <... symlink resumed>) = 0 [pid 6150] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] getdents64(3, [pid 5873] newfstatat(AT_FDCWD, "./51/cgroup.cpu", [pid 6152] write(1, "executing program\n", 18) = 18 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6152] perf_event_open( [pid 6151] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 6150] close(24 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5873] unlink("./51/cgroup.cpu" [pid 5877] umount2("./52/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6150] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6152] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6151] <... symlink resumed>) = 0 [pid 6150] close(25 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... unlink resumed>) = 0 [pid 6152] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6151] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6150] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./52/binderfs", [pid 5873] umount2("./51/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6152] <... bpf resumed>) = 4 [pid 6151] <... openat resumed>) = 3 [pid 6150] close(26 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6152] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6151] write(3, "1000", 4 [pid 6150] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6151] <... write resumed>) = 4 [pid 5877] unlink("./52/binderfs" [pid 6150] close(27 [pid 5873] newfstatat(AT_FDCWD, "./51/cgroup", [pid 6152] <... bpf resumed>) = 5 [pid 6151] close(3 [pid 6150] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6152] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6151] <... close resumed>) = 0 [pid 6150] close(28 [pid 5877] umount2("./52/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] unlink("./51/cgroup" [pid 6152] <... bpf resumed>) = 6 [pid 6151] read(200, [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6152] perf_event_open( [pid 6151] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6150] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./52/cgroup.net", [pid 5873] <... unlink resumed>) = 0 executing program [pid 6151] symlink("/dev/binderfs", "./binderfs" [pid 6150] close(29 [pid 6151] <... symlink resumed>) = 0 [pid 6150] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] getdents64(3, [pid 6151] write(1, "executing program\n", 18 [pid 5877] unlink("./52/cgroup.net" [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6151] <... write resumed>) = 18 [pid 5877] <... unlink resumed>) = 0 [pid 5873] close(3 [pid 5877] umount2("./52/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... close resumed>) = 0 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] rmdir("./51" [pid 5877] newfstatat(AT_FDCWD, "./52/cgroup.cpu", [pid 5873] <... rmdir resumed>) = 0 [pid 6152] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6150] exit_group(0 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] mkdir("./52", 0777 [pid 6151] perf_event_open( [pid 6150] <... exit_group resumed>) = ? [pid 5877] unlink("./52/cgroup.cpu" [pid 5873] <... mkdir resumed>) = 0 [pid 6152] close(3 [pid 5877] <... unlink resumed>) = 0 [pid 5877] umount2("./52/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6150] +++ exited with 0 +++ [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] newfstatat(AT_FDCWD, "./52/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5877] unlink("./52/cgroup") = 0 [pid 5877] getdents64(3, 0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5877] close(3) = 0 [pid 5877] rmdir("./52" [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=53, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5877] <... rmdir resumed>) = 0 [pid 5877] mkdir("./53", 0777) = 0 [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6153 attached [pid 5875] umount2("./51", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5875] openat(AT_FDCWD, "./51", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 54 [pid 5875] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 6154 attached [pid 6153] set_robust_list(0x5555947fb660, 24 [pid 5875] getdents64(3, [pid 6154] set_robust_list(0x5555947fb660, 24 [pid 6153] <... set_robust_list resumed>) = 0 [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 55 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6154] <... set_robust_list resumed>) = 0 [pid 6153] chdir("./52" [pid 5875] umount2("./51/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6153] <... chdir resumed>) = 0 [pid 6153] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] newfstatat(AT_FDCWD, "./51/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6154] chdir("./53" [pid 6153] <... prctl resumed>) = 0 [pid 6154] <... chdir resumed>) = 0 [pid 6153] setpgid(0, 0 [pid 5875] unlink("./51/binderfs" [pid 6154] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6153] <... setpgid resumed>) = 0 [pid 6154] <... prctl resumed>) = 0 [pid 5875] <... unlink resumed>) = 0 [pid 6154] setpgid(0, 0 [pid 5875] umount2("./51/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6154] <... setpgid resumed>) = 0 [pid 6153] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] newfstatat(AT_FDCWD, "./51/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] unlink("./51/cgroup.net" [pid 6154] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5875] <... unlink resumed>) = 0 [pid 5875] umount2("./51/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6154] <... symlink resumed>) = 0 [pid 6153] <... symlink resumed>) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6154] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 6153] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5875] newfstatat(AT_FDCWD, "./51/cgroup.cpu", [pid 6153] <... symlink resumed>) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6153] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 6154] <... symlink resumed>) = 0 [pid 6153] <... symlink resumed>) = 0 [pid 6154] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 6153] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6154] <... symlink resumed>) = 0 [pid 5875] unlink("./51/cgroup.cpu" [pid 6154] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6153] <... openat resumed>) = 3 [pid 5875] <... unlink resumed>) = 0 [pid 6154] <... openat resumed>) = 3 [pid 5875] umount2("./51/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6153] write(3, "1000", 4 [pid 6154] write(3, "1000", 4 [pid 6152] <... close resumed>) = 0 [pid 6151] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6153] <... write resumed>) = 4 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6154] <... write resumed>) = 4 [pid 6153] close(3 [pid 6151] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5875] newfstatat(AT_FDCWD, "./51/cgroup", [pid 6154] close(3 [pid 6153] <... close resumed>) = 0 [pid 6152] close(4 [pid 6151] <... bpf resumed>) = 4 [pid 6154] <... close resumed>) = 0 [pid 6153] read(200, [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6154] read(200, [pid 6153] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6151] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5875] unlink("./51/cgroup" [pid 6154] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6153] symlink("/dev/binderfs", "./binderfs" [pid 6152] <... close resumed>) = 0 [pid 6154] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5875] <... unlink resumed>) = 0 [pid 6154] write(1, "executing program\n", 18 [pid 6153] <... symlink resumed>) = 0 [pid 6152] close(5executing program [pid 6151] <... bpf resumed>) = 5 [pid 5875] getdents64(3, [pid 6154] <... write resumed>) = 18 [pid 6153] write(1, "executing program\n", 18 [pid 6152] <... close resumed>) = 0 [pid 6151] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6154] perf_event_open( [pid 6153] <... write resumed>) = 18 [pid 6153] perf_event_open(executing program [pid 6152] close(6 [pid 5875] close(3 [pid 6154] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6153] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5875] <... close resumed>) = 0 [pid 6153] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5875] rmdir("./51" [pid 6154] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6151] <... bpf resumed>) = 6 [pid 6153] <... bpf resumed>) = 4 [pid 5875] <... rmdir resumed>) = 0 [pid 6153] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6151] perf_event_open( [pid 5875] mkdir("./52", 0777 [pid 6154] <... bpf resumed>) = 4 [pid 6153] <... bpf resumed>) = 5 [pid 5875] <... mkdir resumed>) = 0 [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6151] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6154] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6152] <... close resumed>) = 0 [pid 6151] close(3 [pid 6153] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6152] close(7./strace-static-x86_64: Process 6155 attached [pid 6154] <... bpf resumed>) = 5 [pid 6153] <... bpf resumed>) = 6 [pid 6151] <... close resumed>) = 0 [pid 6155] set_robust_list(0x5555947fb660, 24 [pid 6154] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6153] perf_event_open( [pid 6152] <... close resumed>) = 0 [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 54 [pid 6155] <... set_robust_list resumed>) = 0 [pid 6152] close(8 [pid 6151] close(4 [pid 6155] chdir("./52" [pid 6154] <... bpf resumed>) = 6 [pid 6153] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6152] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6151] <... close resumed>) = 0 [pid 6155] <... chdir resumed>) = 0 [pid 6152] close(9 [pid 6151] close(5 [pid 6155] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6154] perf_event_open( [pid 6153] close(3 [pid 6152] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6151] <... close resumed>) = 0 [pid 6155] <... prctl resumed>) = 0 [pid 6152] close(10 [pid 6151] close(6 [pid 6155] setpgid(0, 0 [pid 6154] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6152] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6151] <... close resumed>) = 0 [pid 6152] close(11) = -1 EBADF (Bad file descriptor) [pid 6151] close(7 [pid 6153] <... close resumed>) = 0 [pid 6152] close(12 [pid 6151] <... close resumed>) = 0 [pid 6152] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6152] close(13 [pid 6151] close(8 [pid 6152] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6151] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6154] close(3 [pid 6153] close(4 [pid 6152] close(14 [pid 6151] close(9 [pid 6155] <... setpgid resumed>) = 0 [pid 6152] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6152] close(15 [pid 6151] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6152] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6151] close(10 [pid 6152] close(16 [pid 6151] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6152] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6151] close(11 [pid 6152] close(17) = -1 EBADF (Bad file descriptor) [pid 6151] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6152] close(18 [pid 6151] close(12 [pid 6152] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6151] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6152] close(19 [pid 6151] close(13 [pid 6152] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6152] close(20 [pid 6151] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6152] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6151] close(14 [pid 6152] close(21) = -1 EBADF (Bad file descriptor) [pid 6151] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6155] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 6152] close(22 [pid 6151] close(15 [pid 6152] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6151] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6153] <... close resumed>) = 0 [pid 6152] close(23 [pid 6151] close(16 [pid 6152] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6151] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6155] <... symlink resumed>) = 0 [pid 6152] close(24 [pid 6151] close(17 [pid 6152] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6151] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6152] close(25 [pid 6151] close(18 [pid 6152] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6155] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 6153] close(5 [pid 6152] close(26 [pid 6151] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6152] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6151] close(19 [pid 6152] close(27 [pid 6151] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6153] <... close resumed>) = 0 [pid 6152] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6153] close(6 [pid 6152] close(28 [pid 6151] close(20 [pid 6155] <... symlink resumed>) = 0 [pid 6152] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6155] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 6154] <... close resumed>) = 0 [pid 6153] <... close resumed>) = 0 [pid 6151] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6153] close(7 [pid 6152] close(29 [pid 6151] close(21 [pid 6153] <... close resumed>) = 0 [pid 6151] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6152] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6151] close(22 [pid 6153] close(8 [pid 6152] exit_group(0 [pid 6151] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6154] close(4 [pid 6152] <... exit_group resumed>) = ? [pid 6151] close(23 [pid 6153] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6153] close(9) = -1 EBADF (Bad file descriptor) [pid 6153] close(10) = -1 EBADF (Bad file descriptor) [pid 6153] close(11) = -1 EBADF (Bad file descriptor) [pid 6153] close(12 [pid 6155] <... symlink resumed>) = 0 [pid 6153] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6151] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6153] close(13) = -1 EBADF (Bad file descriptor) [pid 6153] close(14) = -1 EBADF (Bad file descriptor) [pid 6153] close(15) = -1 EBADF (Bad file descriptor) [pid 6153] close(16 [pid 6155] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6154] <... close resumed>) = 0 [pid 6153] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6152] +++ exited with 0 +++ [pid 6151] close(24 [pid 6155] <... openat resumed>) = 3 [pid 6154] close(5 [pid 6153] close(17) = -1 EBADF (Bad file descriptor) [pid 6151] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6155] write(3, "1000", 4 [pid 6153] close(18 [pid 6151] close(25 [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=52, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 6155] <... write resumed>) = 4 [pid 6154] <... close resumed>) = 0 [pid 6153] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6151] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6155] close(3 [pid 6154] close(6 [pid 6153] close(19 [pid 6151] close(26 [pid 6155] <... close resumed>) = 0 [pid 6153] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6151] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6155] read(200, [pid 6153] close(20 [pid 6151] close(27 [pid 6155] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6153] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6151] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6155] symlink("/dev/binderfs", "./binderfs" [pid 6153] close(21 [pid 6151] close(28 [pid 6155] <... symlink resumed>) = 0 [pid 6153] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6153] close(22executing program [pid 6151] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6155] write(1, "executing program\n", 18 [pid 6153] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6151] close(29 [pid 6155] <... write resumed>) = 18 [pid 6153] close(23 [pid 6151] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6155] perf_event_open( [pid 6151] exit_group(0 [pid 6155] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6154] <... close resumed>) = 0 [pid 6153] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6151] <... exit_group resumed>) = ? [pid 5874] umount2("./50", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6155] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6154] close(7 [pid 6153] close(24 [pid 6155] <... bpf resumed>) = 4 [pid 6154] <... close resumed>) = 0 [pid 6153] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6151] +++ exited with 0 +++ [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6155] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6154] close(8 [pid 6153] close(25 [pid 5874] openat(AT_FDCWD, "./50", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=56, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6154] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6153] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... openat resumed>) = 3 [pid 6155] <... bpf resumed>) = 5 [pid 6154] close(9 [pid 6153] close(26 [pid 5874] newfstatat(3, "", [pid 6155] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6154] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6153] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6155] <... bpf resumed>) = 6 [pid 6154] close(10 [pid 6153] close(27) = -1 EBADF (Bad file descriptor) [pid 5874] getdents64(3, [pid 6155] perf_event_open( [pid 6154] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6153] close(28 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6155] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6154] close(11 [pid 6153] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./50/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6155] close(3 [pid 6154] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6153] close(29 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6154] close(12 [pid 6153] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] newfstatat(AT_FDCWD, "./50/binderfs", [pid 6154] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6153] exit_group(0 [pid 6154] close(13 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6154] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6153] <... exit_group resumed>) = ? [pid 5874] unlink("./50/binderfs" [pid 6154] close(14) = -1 EBADF (Bad file descriptor) [pid 6154] close(15 [pid 5874] <... unlink resumed>) = 0 [pid 6154] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./50/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5874] newfstatat(AT_FDCWD, "./50/cgroup.net", [pid 6154] close(16 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6153] +++ exited with 0 +++ [pid 6154] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6154] close(17 [pid 5874] unlink("./50/cgroup.net" [pid 6154] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... unlink resumed>) = 0 [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=54, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6154] close(18 [pid 5876] umount2("./54", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] umount2("./52", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6154] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6154] close(19 [pid 5876] openat(AT_FDCWD, "./54", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5874] umount2("./50/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] openat(AT_FDCWD, "./52", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6154] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... openat resumed>) = 3 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... openat resumed>) = 3 [pid 6154] close(20 [pid 5876] newfstatat(3, "", [pid 6155] <... close resumed>) = 0 [pid 5874] newfstatat(AT_FDCWD, "./50/cgroup.cpu", [pid 6155] close(4 [pid 6154] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] newfstatat(3, "", [pid 6154] close(21 [pid 5876] getdents64(3, [pid 5874] unlink("./50/cgroup.cpu" [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6155] <... close resumed>) = 0 [pid 6154] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5873] getdents64(3, [pid 5874] <... unlink resumed>) = 0 [pid 6155] close(5 [pid 6154] close(22 [pid 5876] umount2("./54/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] umount2("./50/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6155] <... close resumed>) = 0 [pid 6154] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] umount2("./52/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6154] close(23 [pid 5876] newfstatat(AT_FDCWD, "./54/binderfs", [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6155] close(6 [pid 5874] newfstatat(AT_FDCWD, "./50/cgroup", [pid 6154] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] newfstatat(AT_FDCWD, "./52/binderfs", [pid 6154] close(24 [pid 5876] unlink("./54/binderfs" [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6154] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 5873] unlink("./52/binderfs" [pid 6154] close(25 [pid 5873] <... unlink resumed>) = 0 [pid 6154] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./54/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] umount2("./52/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6154] close(26 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6154] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(AT_FDCWD, "./54/cgroup.net", [pid 5873] newfstatat(AT_FDCWD, "./52/cgroup.net", [pid 6154] close(27 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6154] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] unlink("./54/cgroup.net" [pid 5873] unlink("./52/cgroup.net" [pid 6154] close(28 [pid 5876] <... unlink resumed>) = 0 [pid 5873] <... unlink resumed>) = 0 [pid 6154] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./54/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] umount2("./52/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6154] close(29 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6154] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(AT_FDCWD, "./54/cgroup.cpu", [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6154] exit_group(0 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6154] <... exit_group resumed>) = ? [pid 5876] unlink("./54/cgroup.cpu" [pid 5873] newfstatat(AT_FDCWD, "./52/cgroup.cpu", [pid 6154] +++ exited with 0 +++ [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] <... unlink resumed>) = 0 [pid 6155] <... close resumed>) = 0 [pid 5876] umount2("./54/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] unlink("./52/cgroup.cpu" [pid 6155] close(7 [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=55, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6155] <... close resumed>) = 0 [pid 5876] newfstatat(AT_FDCWD, "./54/cgroup", [pid 5874] unlink("./50/cgroup" [pid 5873] <... unlink resumed>) = 0 [pid 6155] close(8 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6155] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] unlink("./54/cgroup" [pid 5873] umount2("./52/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6155] close(9 [pid 5876] <... unlink resumed>) = 0 [pid 5874] <... unlink resumed>) = 0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6155] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./53", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] getdents64(3, [pid 5874] getdents64(3, [pid 5873] newfstatat(AT_FDCWD, "./52/cgroup", [pid 6155] close(10 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6155] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] openat(AT_FDCWD, "./53", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5873] unlink("./52/cgroup" [pid 6155] close(11 [pid 5877] <... openat resumed>) = 3 [pid 5876] close(3 [pid 5874] close(3 [pid 6155] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6155] close(12) = -1 EBADF (Bad file descriptor) [pid 6155] close(13) = -1 EBADF (Bad file descriptor) [pid 6155] close(14) = -1 EBADF (Bad file descriptor) [pid 6155] close(15 [pid 5873] <... unlink resumed>) = 0 [pid 5876] <... close resumed>) = 0 [pid 6155] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] getdents64(3, [pid 6155] close(16 [pid 5877] newfstatat(3, "", [pid 5876] rmdir("./54" [pid 5874] <... close resumed>) = 0 [pid 6155] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6155] close(17 [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6155] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6155] close(18) = -1 EBADF (Bad file descriptor) [pid 6155] close(19 [pid 5876] <... rmdir resumed>) = 0 [pid 6155] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6155] close(20) = -1 EBADF (Bad file descriptor) [pid 6155] close(21) = -1 EBADF (Bad file descriptor) [pid 6155] close(22) = -1 EBADF (Bad file descriptor) [pid 6155] close(23) = -1 EBADF (Bad file descriptor) [pid 6155] close(24) = -1 EBADF (Bad file descriptor) [pid 6155] close(25) = -1 EBADF (Bad file descriptor) [pid 6155] close(26) = -1 EBADF (Bad file descriptor) [pid 6155] close(27) = -1 EBADF (Bad file descriptor) [pid 6155] close(28) = -1 EBADF (Bad file descriptor) [pid 6155] close(29) = -1 EBADF (Bad file descriptor) [pid 6155] exit_group(0) = ? [pid 5877] getdents64(3, [pid 5876] mkdir("./55", 0777 [pid 5874] rmdir("./50" [pid 5873] close(3 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5876] <... mkdir resumed>) = 0 [pid 5874] <... rmdir resumed>) = 0 [pid 5873] <... close resumed>) = 0 [pid 5877] umount2("./53/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] mkdir("./51", 0777 [pid 5873] rmdir("./52" [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] newfstatat(AT_FDCWD, "./53/binderfs", [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5874] <... mkdir resumed>) = 0 [pid 5873] <... rmdir resumed>) = 0 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6155] +++ exited with 0 +++ [pid 5877] unlink("./53/binderfs" [pid 5873] mkdir("./53", 0777 [pid 5877] <... unlink resumed>) = 0 [pid 5873] <... mkdir resumed>) = 0 [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=54, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6156 attached ./strace-static-x86_64: Process 6157 attached [pid 6156] set_robust_list(0x5555947fb660, 24 [pid 5877] umount2("./53/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 57 [pid 5875] restart_syscall(<... resuming interrupted clone ...> [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 53 ./strace-static-x86_64: Process 6158 attached [pid 6157] set_robust_list(0x5555947fb660, 24 [pid 6156] <... set_robust_list resumed>) = 0 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6158] set_robust_list(0x5555947fb660, 24 [pid 6157] <... set_robust_list resumed>) = 0 [pid 6156] chdir("./51" [pid 5877] newfstatat(AT_FDCWD, "./53/cgroup.net", [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 55 [pid 6158] <... set_robust_list resumed>) = 0 [pid 6157] chdir("./55" [pid 6158] chdir("./53" [pid 6156] <... chdir resumed>) = 0 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6158] <... chdir resumed>) = 0 [pid 6157] <... chdir resumed>) = 0 [pid 6157] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6156] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5877] unlink("./53/cgroup.net" [pid 6158] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6157] <... prctl resumed>) = 0 [pid 6156] <... prctl resumed>) = 0 [pid 6158] <... prctl resumed>) = 0 [pid 6157] setpgid(0, 0 [pid 6156] setpgid(0, 0 [pid 5877] <... unlink resumed>) = 0 [pid 5875] <... restart_syscall resumed>) = 0 [pid 6158] setpgid(0, 0) = 0 [pid 6157] <... setpgid resumed>) = 0 [pid 6156] <... setpgid resumed>) = 0 [pid 5877] umount2("./53/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6158] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 6157] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 6156] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6158] <... symlink resumed>) = 0 [pid 5877] newfstatat(AT_FDCWD, "./53/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6158] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 6157] <... symlink resumed>) = 0 [pid 6156] <... symlink resumed>) = 0 [pid 5877] unlink("./53/cgroup.cpu" [pid 5875] umount2("./52", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6158] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 6157] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 6156] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5877] <... unlink resumed>) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6158] <... symlink resumed>) = 0 [pid 6157] <... symlink resumed>) = 0 [pid 5877] umount2("./53/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] openat(AT_FDCWD, "./52", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6158] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6157] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 6156] <... symlink resumed>) = 0 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... openat resumed>) = 3 [pid 6158] <... openat resumed>) = 3 [pid 6157] <... symlink resumed>) = 0 [pid 5877] newfstatat(AT_FDCWD, "./53/cgroup", [pid 5875] newfstatat(3, "", [pid 6156] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 6158] write(3, "1000", 4 [pid 6157] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6158] <... write resumed>) = 4 [pid 6157] <... openat resumed>) = 3 [pid 6156] <... symlink resumed>) = 0 [pid 6158] close(3 [pid 6156] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6158] <... close resumed>) = 0 [pid 6157] write(3, "1000", 4 [pid 5877] unlink("./53/cgroup" [pid 5875] getdents64(3, [pid 6158] read(200, [pid 6157] <... write resumed>) = 4 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6158] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6157] close(3 [pid 5877] <... unlink resumed>) = 0 [pid 5875] umount2("./52/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6158] symlink("/dev/binderfs", "./binderfs" [pid 6157] <... close resumed>) = 0 [pid 6156] <... openat resumed>) = 3 [pid 5877] getdents64(3, [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6157] read(200, [pid 6156] write(3, "1000", 4 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5875] newfstatat(AT_FDCWD, "./52/binderfs", [pid 6158] <... symlink resumed>) = 0 [pid 6157] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6156] <... write resumed>) = 4 [pid 5877] close(3 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 executing program [pid 6157] symlink("/dev/binderfs", "./binderfs" [pid 6156] close(3 [pid 5877] <... close resumed>) = 0 [pid 6158] write(1, "executing program\n", 18 [pid 5875] unlink("./52/binderfs" [pid 6158] <... write resumed>) = 18 [pid 6157] <... symlink resumed>) = 0 [pid 6156] <... close resumed>) = 0 [pid 5877] rmdir("./53" [pid 6158] perf_event_open( [pid 6157] write(1, "executing program\n", 18 [pid 6156] read(200, [pid 5875] <... unlink resumed>) = 0 executing program [pid 6157] <... write resumed>) = 18 [pid 6156] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5877] <... rmdir resumed>) = 0 [pid 5875] umount2("./52/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6158] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6157] perf_event_open( [pid 6158] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6156] symlink("/dev/binderfs", "./binderfs" [pid 5877] mkdir("./54", 0777 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6158] <... bpf resumed>) = 4 [pid 6157] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5875] newfstatat(AT_FDCWD, "./52/cgroup.net", [pid 6157] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5877] <... mkdir resumed>) = 0 [pid 6158] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6157] <... bpf resumed>) = 4 [pid 6156] <... symlink resumed>) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6157] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program [pid 6158] <... bpf resumed>) = 5 [pid 6157] <... bpf resumed>) = 5 [pid 6156] write(1, "executing program\n", 18 [pid 5875] unlink("./52/cgroup.net" [pid 6157] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6156] <... write resumed>) = 18 [pid 6158] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6157] <... bpf resumed>) = 6 [pid 6156] perf_event_open( [pid 5875] <... unlink resumed>) = 0 [pid 6157] perf_event_open({type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 ./strace-static-x86_64: Process 6159 attached [pid 6157] close(3 [pid 6159] set_robust_list(0x5555947fb660, 24 [pid 6158] <... bpf resumed>) = 6 [pid 6156] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5875] umount2("./52/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6158] perf_event_open( [pid 6156] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 56 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6159] <... set_robust_list resumed>) = 0 [pid 6157] <... close resumed>) = 0 [pid 5875] newfstatat(AT_FDCWD, "./52/cgroup.cpu", [pid 6159] chdir("./54" [pid 6158] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6157] close(4 [pid 6156] <... bpf resumed>) = 4 [pid 6158] close(3 [pid 6156] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6159] <... chdir resumed>) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6157] <... close resumed>) = 0 [pid 5875] unlink("./52/cgroup.cpu" [pid 6159] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6157] close(5 [pid 5875] <... unlink resumed>) = 0 [pid 6159] <... prctl resumed>) = 0 [pid 6158] <... close resumed>) = 0 [pid 6157] <... close resumed>) = 0 [pid 5875] umount2("./52/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6158] close(4 [pid 6159] setpgid(0, 0 [pid 6157] close(6 [pid 6156] <... bpf resumed>) = 5 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6159] <... setpgid resumed>) = 0 [pid 6158] <... close resumed>) = 0 [pid 5875] newfstatat(AT_FDCWD, "./52/cgroup", [pid 6156] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6159] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 6156] <... bpf resumed>) = 6 [pid 6156] perf_event_open( [pid 5875] unlink("./52/cgroup") = 0 [pid 6159] <... symlink resumed>) = 0 [pid 6158] close(5 [pid 6157] <... close resumed>) = 0 [pid 6156] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5875] getdents64(3, [pid 6159] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 6158] <... close resumed>) = 0 [pid 6157] close(7 [pid 6156] close(3 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6159] <... symlink resumed>) = 0 [pid 6158] close(6 [pid 6157] <... close resumed>) = 0 [pid 5875] close(3 [pid 6157] close(8 [pid 5875] <... close resumed>) = 0 [pid 6157] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6157] close(9 [pid 5875] rmdir("./52" [pid 6159] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 6158] <... close resumed>) = 0 [pid 6157] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6157] close(10) = -1 EBADF (Bad file descriptor) [pid 6157] close(11 [pid 5875] <... rmdir resumed>) = 0 [pid 6157] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6157] close(12) = -1 EBADF (Bad file descriptor) [pid 6159] <... symlink resumed>) = 0 [pid 6157] close(13 [pid 6158] close(7 [pid 6157] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6157] close(14 [pid 5875] mkdir("./53", 0777 [pid 6157] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6158] <... close resumed>) = 0 [pid 6159] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6157] close(15 [pid 6158] close(8 [pid 6157] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... mkdir resumed>) = 0 [pid 6157] close(16) = -1 EBADF (Bad file descriptor) [pid 6157] close(17) = -1 EBADF (Bad file descriptor) [pid 6157] close(18) = -1 EBADF (Bad file descriptor) [pid 6159] <... openat resumed>) = 3 [pid 6158] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6157] close(19 [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6157] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6157] close(20) = -1 EBADF (Bad file descriptor) [pid 6158] close(9 [pid 6157] close(21) = -1 EBADF (Bad file descriptor) [pid 6157] close(22) = -1 EBADF (Bad file descriptor) [pid 6157] close(23) = -1 EBADF (Bad file descriptor) [pid 6157] close(24) = -1 EBADF (Bad file descriptor) [pid 6157] close(25) = -1 EBADF (Bad file descriptor) [pid 6157] close(26) = -1 EBADF (Bad file descriptor) [pid 6157] close(27) = -1 EBADF (Bad file descriptor) [pid 6157] close(28) = -1 EBADF (Bad file descriptor) [pid 6157] close(29) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 6160 attached [pid 6159] write(3, "1000", 4 [pid 6160] set_robust_list(0x5555947fb660, 24) = 0 [pid 6157] exit_group(0 [pid 6159] <... write resumed>) = 4 [pid 6158] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 55 [pid 6160] chdir("./53" [pid 6159] close(3 [pid 6158] close(10 [pid 6157] <... exit_group resumed>) = ? [pid 6160] <... chdir resumed>) = 0 [pid 6159] <... close resumed>) = 0 [pid 6159] read(200, [pid 6158] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6159] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6158] close(11 [pid 6159] symlink("/dev/binderfs", "./binderfs"executing program [pid 6158] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6159] <... symlink resumed>) = 0 [pid 6158] close(12 [pid 6159] write(1, "executing program\n", 18 [pid 6158] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6159] <... write resumed>) = 18 [pid 6158] close(13 [pid 6159] perf_event_open( [pid 6158] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6158] close(14) = -1 EBADF (Bad file descriptor) [pid 6158] close(15) = -1 EBADF (Bad file descriptor) [pid 6158] close(16) = -1 EBADF (Bad file descriptor) [pid 6158] close(17) = -1 EBADF (Bad file descriptor) [pid 6158] close(18) = -1 EBADF (Bad file descriptor) [pid 6158] close(19) = -1 EBADF (Bad file descriptor) [pid 6158] close(20) = -1 EBADF (Bad file descriptor) [pid 6158] close(21) = -1 EBADF (Bad file descriptor) [pid 6158] close(22) = -1 EBADF (Bad file descriptor) [pid 6158] close(23) = -1 EBADF (Bad file descriptor) [pid 6158] close(24) = -1 EBADF (Bad file descriptor) [pid 6158] close(25) = -1 EBADF (Bad file descriptor) [pid 6158] close(26) = -1 EBADF (Bad file descriptor) [pid 6158] close(27) = -1 EBADF (Bad file descriptor) [pid 6158] close(28) = -1 EBADF (Bad file descriptor) [pid 6158] close(29) = -1 EBADF (Bad file descriptor) [pid 6158] exit_group(0) = ? [pid 6160] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6159] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6157] +++ exited with 0 +++ [pid 6156] <... close resumed>) = 0 [pid 6160] <... prctl resumed>) = 0 [pid 6160] setpgid(0, 0) = 0 [pid 6160] symlink("/syzcgroup/unified/syz2", "./cgroup") = 0 [pid 6158] +++ exited with 0 +++ [pid 6160] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu") = 0 [pid 6159] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6156] close(4 [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=57, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=55, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 6160] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 6159] <... bpf resumed>) = 4 [pid 6160] <... symlink resumed>) = 0 [pid 6159] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6156] <... close resumed>) = 0 [pid 6160] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6156] close(5) = 0 [pid 6156] close(6 [pid 6159] <... bpf resumed>) = 5 [pid 6156] <... close resumed>) = 0 [pid 5876] umount2("./55", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5873] umount2("./53", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] openat(AT_FDCWD, "./55", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6160] <... openat resumed>) = 3 [pid 6156] close(7 [pid 5876] <... openat resumed>) = 3 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6160] write(3, "1000", 4 [pid 6159] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6156] <... close resumed>) = 0 [pid 5876] newfstatat(3, "", [pid 5873] openat(AT_FDCWD, "./53", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6160] <... write resumed>) = 4 [pid 6156] close(8 [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6160] close(3 [pid 6159] <... bpf resumed>) = 6 [pid 6156] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] getdents64(3, [pid 5873] <... openat resumed>) = 3 [pid 6160] <... close resumed>) = 0 [pid 6159] perf_event_open( [pid 6156] close(9 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5873] newfstatat(3, "", [pid 6160] read(200, [pid 6159] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5876] umount2("./55/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] getdents64(3, [pid 5876] newfstatat(AT_FDCWD, "./55/binderfs", [pid 6160] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6159] close(3 [pid 6156] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6160] symlink("/dev/binderfs", "./binderfs" [pid 6156] close(10 [pid 5876] unlink("./55/binderfs" [pid 6160] <... symlink resumed>) = 0 [pid 6156] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] umount2("./53/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW executing program [pid 6160] write(1, "executing program\n", 18 [pid 6156] close(11 [pid 6160] <... write resumed>) = 18 [pid 6156] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6160] perf_event_open( [pid 6156] close(12) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6156] close(13) = -1 EBADF (Bad file descriptor) [pid 6156] close(14) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./55/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] newfstatat(AT_FDCWD, "./53/binderfs", [pid 6156] close(15) = -1 EBADF (Bad file descriptor) [pid 6156] close(16) = -1 EBADF (Bad file descriptor) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6156] close(17 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6156] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6156] close(18 [pid 5876] newfstatat(AT_FDCWD, "./55/cgroup.net", [pid 5873] unlink("./53/binderfs" [pid 6156] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6156] close(19 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6156] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6156] close(20 [pid 5876] unlink("./55/cgroup.net" [pid 5873] <... unlink resumed>) = 0 [pid 6156] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6156] close(21) = -1 EBADF (Bad file descriptor) [pid 6156] close(22) = -1 EBADF (Bad file descriptor) [pid 6156] close(23) = -1 EBADF (Bad file descriptor) [pid 6156] close(24) = -1 EBADF (Bad file descriptor) [pid 6156] close(25 [pid 5873] umount2("./53/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6156] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6156] close(26 [pid 5876] <... unlink resumed>) = 0 [pid 6156] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6156] close(27) = -1 EBADF (Bad file descriptor) [pid 5873] newfstatat(AT_FDCWD, "./53/cgroup.net", [pid 6156] close(28 [pid 5876] umount2("./55/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6156] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6156] close(29) = -1 EBADF (Bad file descriptor) [pid 6156] exit_group(0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] unlink("./53/cgroup.net") = 0 [pid 5876] newfstatat(AT_FDCWD, "./55/cgroup.cpu", [pid 5873] umount2("./53/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6156] <... exit_group resumed>) = ? [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] unlink("./55/cgroup.cpu" [pid 5873] newfstatat(AT_FDCWD, "./53/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6160] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6159] <... close resumed>) = 0 [pid 5876] <... unlink resumed>) = 0 [pid 5873] unlink("./53/cgroup.cpu" [pid 5876] umount2("./55/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6160] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... unlink resumed>) = 0 [pid 6160] <... bpf resumed>) = 4 [pid 6159] close(4 [pid 6156] +++ exited with 0 +++ [pid 6160] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5876] newfstatat(AT_FDCWD, "./55/cgroup", [pid 5873] umount2("./53/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6159] <... close resumed>) = 0 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=53, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6160] <... bpf resumed>) = 5 [pid 6159] close(5 [pid 5876] unlink("./55/cgroup" [pid 5874] restart_syscall(<... resuming interrupted clone ...> [pid 5873] newfstatat(AT_FDCWD, "./53/cgroup", [pid 6160] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5876] <... unlink resumed>) = 0 [pid 5874] <... restart_syscall resumed>) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6159] <... close resumed>) = 0 [pid 5876] getdents64(3, [pid 5873] unlink("./53/cgroup" [pid 6159] close(6 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5873] <... unlink resumed>) = 0 [pid 5876] close(3 [pid 5874] umount2("./51", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] getdents64(3, [pid 5876] <... close resumed>) = 0 [pid 6160] <... bpf resumed>) = 6 [pid 5876] rmdir("./55" [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6160] perf_event_open( [pid 6159] <... close resumed>) = 0 [pid 5876] <... rmdir resumed>) = 0 [pid 5874] openat(AT_FDCWD, "./51", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5873] close(3 [pid 5876] mkdir("./56", 0777 [pid 5874] <... openat resumed>) = 3 [pid 5876] <... mkdir resumed>) = 0 [pid 5874] newfstatat(3, "", [pid 5873] <... close resumed>) = 0 [pid 6160] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5873] rmdir("./53" [pid 6159] close(7 [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5874] getdents64(3, [pid 5873] <... rmdir resumed>) = 0 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5874] umount2("./51/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5873] mkdir("./54", 0777 [pid 6159] <... close resumed>) = 0 [pid 6159] close(8 [pid 5874] newfstatat(AT_FDCWD, "./51/binderfs", [pid 5873] <... mkdir resumed>) = 0 [pid 6159] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6160] close(3 [pid 6159] close(9 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] unlink("./51/binderfs" [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6159] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 6161 attached [pid 5874] umount2("./51/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6161] set_robust_list(0x5555947fb660, 24 [pid 6159] close(10 [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 58 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6159] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6159] close(11) = -1 EBADF (Bad file descriptor) [pid 6161] <... set_robust_list resumed>) = 0 [pid 5874] newfstatat(AT_FDCWD, "./51/cgroup.net", ./strace-static-x86_64: Process 6162 attached [pid 6161] chdir("./56" [pid 6159] close(12 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6162] set_robust_list(0x5555947fb660, 24 [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 56 [pid 5874] unlink("./51/cgroup.net" [pid 6162] <... set_robust_list resumed>) = 0 [pid 6162] chdir("./54" [pid 6161] <... chdir resumed>) = 0 [pid 6160] <... close resumed>) = 0 [pid 6159] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... unlink resumed>) = 0 [pid 6162] <... chdir resumed>) = 0 [pid 6161] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6159] close(13 [pid 5874] umount2("./51/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6162] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6161] <... prctl resumed>) = 0 [pid 6160] close(4 [pid 6159] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6162] <... prctl resumed>) = 0 [pid 6161] setpgid(0, 0 [pid 6159] close(14 [pid 5874] newfstatat(AT_FDCWD, "./51/cgroup.cpu", [pid 6162] setpgid(0, 0 [pid 6161] <... setpgid resumed>) = 0 [pid 6159] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6162] <... setpgid resumed>) = 0 [pid 6161] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 6160] <... close resumed>) = 0 [pid 6159] close(15 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6162] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 6159] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6160] close(5 [pid 6159] close(16 [pid 6162] <... symlink resumed>) = 0 [pid 6161] <... symlink resumed>) = 0 [pid 6160] <... close resumed>) = 0 [pid 5874] unlink("./51/cgroup.cpu" [pid 6162] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 6161] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5874] <... unlink resumed>) = 0 [pid 6162] <... symlink resumed>) = 0 [pid 6160] close(6 [pid 6159] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6162] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 6161] <... symlink resumed>) = 0 [pid 5874] umount2("./51/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6162] <... symlink resumed>) = 0 [pid 6159] close(17 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6162] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6161] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 6160] <... close resumed>) = 0 [pid 6159] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] newfstatat(AT_FDCWD, "./51/cgroup", [pid 6162] <... openat resumed>) = 3 [pid 6159] close(18) = -1 EBADF (Bad file descriptor) [pid 6159] close(19) = -1 EBADF (Bad file descriptor) [pid 6159] close(20 [pid 6160] close(7 [pid 6159] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6161] <... symlink resumed>) = 0 [pid 6160] <... close resumed>) = 0 [pid 6159] close(21 [pid 6160] close(8 [pid 6159] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6161] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6160] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6159] close(22 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6161] <... openat resumed>) = 3 [pid 6160] close(9 [pid 6159] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6161] write(3, "1000", 4 [pid 6160] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6159] close(23 [pid 5874] unlink("./51/cgroup" [pid 6162] write(3, "1000", 4 [pid 6161] <... write resumed>) = 4 [pid 6160] close(10 [pid 6159] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6162] <... write resumed>) = 4 [pid 6161] close(3 [pid 6160] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6159] close(24 [pid 5874] <... unlink resumed>) = 0 [pid 6162] close(3 [pid 6161] <... close resumed>) = 0 [pid 6160] close(11 [pid 6159] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] getdents64(3, [pid 6161] read(200, [pid 6160] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6162] <... close resumed>) = 0 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6162] read(200, [pid 6161] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5874] close(3 [pid 6162] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6161] symlink("/dev/binderfs", "./binderfs" [pid 6162] symlink("/dev/binderfs", "./binderfs" [pid 5874] <... close resumed>) = 0 [pid 6162] <... symlink resumed>) = 0 [pid 6161] <... symlink resumed>) = 0 [pid 6160] close(12 [pid 6159] close(25 [pid 6162] write(1, "executing program\n", 18 [pid 6161] write(1, "executing program\n", 18 [pid 6160] <... close resumed>) = -1 EBADF (Bad file descriptor) executing program executing program [pid 6159] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] rmdir("./51" [pid 6162] <... write resumed>) = 18 [pid 6161] <... write resumed>) = 18 [pid 6160] close(13 [pid 6159] close(26 [pid 6162] perf_event_open( [pid 6161] perf_event_open( [pid 6160] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6159] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... rmdir resumed>) = 0 [pid 6162] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6160] close(14 [pid 6159] close(27 [pid 6160] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] mkdir("./52", 0777 [pid 6160] close(15 [pid 6162] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6160] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6162] <... bpf resumed>) = 4 [pid 6159] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... mkdir resumed>) = 0 [pid 6162] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6161] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6160] close(16 [pid 6159] close(28 [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6162] <... bpf resumed>) = 5 [pid 6161] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6160] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6159] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6160] close(17 [pid 6159] close(29 [pid 6162] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24./strace-static-x86_64: Process 6163 attached ) = 6 [pid 6161] <... bpf resumed>) = 4 [pid 6160] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6159] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6163] set_robust_list(0x5555947fb660, 24 [pid 6162] perf_event_open( [pid 6161] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6160] close(18 [pid 6163] <... set_robust_list resumed>) = 0 [pid 6159] exit_group(0 [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 54 [pid 6160] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6162] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6160] close(19 [pid 6162] close(3 [pid 6159] <... exit_group resumed>) = ? [pid 6160] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6162] <... close resumed>) = 0 [pid 6162] close(4 [pid 6163] chdir("./52" [pid 6162] <... close resumed>) = 0 [pid 6160] close(20 [pid 6162] close(5) = 0 [pid 6163] <... chdir resumed>) = 0 [pid 6162] close(6 [pid 6161] <... bpf resumed>) = 5 [pid 6160] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6159] +++ exited with 0 +++ [pid 6163] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6160] close(21 [pid 6163] <... prctl resumed>) = 0 [pid 6161] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6160] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=56, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 6163] setpgid(0, 0 [pid 6162] <... close resumed>) = 0 [pid 6160] close(22 [pid 6163] <... setpgid resumed>) = 0 [pid 6160] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6163] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 6162] close(7 [pid 6160] close(23 [pid 6161] <... bpf resumed>) = 6 [pid 6160] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6163] <... symlink resumed>) = 0 [pid 6162] <... close resumed>) = 0 [pid 6160] close(24) = -1 EBADF (Bad file descriptor) [pid 6160] close(25 [pid 6163] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 6160] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6162] close(8 [pid 6161] perf_event_open( [pid 5877] umount2("./54", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6160] close(26 [pid 6163] <... symlink resumed>) = 0 [pid 6162] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6161] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6160] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6163] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 6162] close(9 [pid 6161] close(3 [pid 6160] close(27 [pid 5877] openat(AT_FDCWD, "./54", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6163] <... symlink resumed>) = 0 [pid 6162] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6160] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... openat resumed>) = 3 [pid 6162] close(10 [pid 5877] newfstatat(3, "", [pid 6162] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6162] close(11 [pid 5877] getdents64(3, [pid 6162] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6162] close(12 [pid 6160] close(28 [pid 5877] umount2("./54/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6163] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6162] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6160] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6162] close(13 [pid 5877] newfstatat(AT_FDCWD, "./54/binderfs", [pid 6162] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6162] close(14 [pid 6163] <... openat resumed>) = 3 [pid 6160] close(29 [pid 6163] write(3, "1000", 4 [pid 6160] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6163] <... write resumed>) = 4 [pid 6162] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./54/binderfs" [pid 6163] close(3 [pid 6162] close(15 [pid 6160] exit_group(0 [pid 5877] <... unlink resumed>) = 0 [pid 6162] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6162] close(16 [pid 5877] umount2("./54/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6163] <... close resumed>) = 0 [pid 6162] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6160] <... exit_group resumed>) = ? [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6163] read(200, [pid 6162] close(17 [pid 5877] newfstatat(AT_FDCWD, "./54/cgroup.net", [pid 6162] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6162] close(18 [pid 5877] unlink("./54/cgroup.net" [pid 6162] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 6162] close(19) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./54/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6162] close(20 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6162] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6162] close(21 [pid 5877] newfstatat(AT_FDCWD, "./54/cgroup.cpu", [pid 6162] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6160] +++ exited with 0 +++ [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6163] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6163] symlink("/dev/binderfs", "./binderfs" [pid 6162] close(22 [pid 5877] unlink("./54/cgroup.cpu" [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=55, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 6163] <... symlink resumed>) = 0 [pid 6162] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 5875] restart_syscall(<... resuming interrupted clone ...> executing program [pid 6163] write(1, "executing program\n", 18) = 18 [pid 6162] close(23 [pid 5877] umount2("./54/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6162] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6163] perf_event_open( [pid 6162] close(24 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6162] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./54/cgroup", [pid 6162] close(25 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6162] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./54/cgroup" [pid 6162] close(26) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 6162] close(27 [pid 5877] getdents64(3, [pid 6162] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6162] close(28 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6162] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] close(3 [pid 6162] close(29) = -1 EBADF (Bad file descriptor) [pid 5877] <... close resumed>) = 0 [pid 5877] rmdir("./54" [pid 6162] exit_group(0) = ? [pid 6163] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6162] +++ exited with 0 +++ [pid 6161] <... close resumed>) = 0 [pid 5877] <... rmdir resumed>) = 0 [pid 5875] <... restart_syscall resumed>) = 0 [pid 6163] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5877] mkdir("./55", 0777 [pid 6161] close(4 [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=56, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5877] <... mkdir resumed>) = 0 [pid 5875] umount2("./53", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6163] <... bpf resumed>) = 4 [pid 6161] <... close resumed>) = 0 [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] umount2("./54", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6161] close(5./strace-static-x86_64: Process 6164 attached [pid 6163] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5875] openat(AT_FDCWD, "./53", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 57 [pid 5873] openat(AT_FDCWD, "./54", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6164] set_robust_list(0x5555947fb660, 24 [pid 6161] <... close resumed>) = 0 [pid 5873] <... openat resumed>) = 3 [pid 5873] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5873] getdents64(3, [pid 6164] <... set_robust_list resumed>) = 0 [pid 6163] <... bpf resumed>) = 5 [pid 6161] close(6 [pid 5875] <... openat resumed>) = 3 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5873] umount2("./54/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5873] newfstatat(AT_FDCWD, "./54/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] unlink("./54/binderfs" [pid 6161] <... close resumed>) = 0 [pid 5873] <... unlink resumed>) = 0 [pid 5875] newfstatat(3, "", [pid 6161] close(7 [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5873] umount2("./54/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] getdents64(3, [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5873] newfstatat(AT_FDCWD, "./54/cgroup.net", [pid 6161] <... close resumed>) = 0 [pid 5875] umount2("./53/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6161] close(8 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] unlink("./54/cgroup.net" [pid 6164] chdir("./55" [pid 6163] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6161] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(AT_FDCWD, "./53/binderfs", [pid 5873] <... unlink resumed>) = 0 [pid 6164] <... chdir resumed>) = 0 [pid 6161] close(9 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] umount2("./54/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] unlink("./53/binderfs" [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] newfstatat(AT_FDCWD, "./54/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] unlink("./54/cgroup.cpu") = 0 [pid 5873] umount2("./54/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5873] newfstatat(AT_FDCWD, "./54/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] unlink("./54/cgroup" [pid 6164] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6163] <... bpf resumed>) = 6 [pid 6161] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 [pid 6164] <... prctl resumed>) = 0 [pid 6163] perf_event_open( [pid 6161] close(10 [pid 5875] umount2("./53/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... unlink resumed>) = 0 [pid 6164] setpgid(0, 0 [pid 6163] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6161] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6164] <... setpgid resumed>) = 0 [pid 6161] close(11 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] getdents64(3, 0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5873] close(3) = 0 [pid 6164] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5873] rmdir("./54" [pid 6161] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(AT_FDCWD, "./53/cgroup.net", [pid 5873] <... rmdir resumed>) = 0 [pid 6164] <... symlink resumed>) = 0 [pid 6163] close(3 [pid 5873] mkdir("./55", 0777 [pid 6161] close(12 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... mkdir resumed>) = 0 [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6164] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 6161] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] unlink("./53/cgroup.net"./strace-static-x86_64: Process 6166 attached [pid 6164] <... symlink resumed>) = 0 [pid 6161] close(13 [pid 6166] set_robust_list(0x5555947fb660, 24) = 0 [pid 6161] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 57 [pid 6166] chdir("./55" [pid 6164] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 6161] close(14 [pid 5875] <... unlink resumed>) = 0 [pid 6161] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./53/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6161] close(15 [pid 6166] <... chdir resumed>) = 0 [pid 6161] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6166] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6161] close(16 [pid 6166] <... prctl resumed>) = 0 [pid 6166] setpgid(0, 0 [pid 6161] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6166] <... setpgid resumed>) = 0 [pid 6166] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 6164] <... symlink resumed>) = 0 [pid 6161] close(17 [pid 5875] newfstatat(AT_FDCWD, "./53/cgroup.cpu", [pid 6164] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6161] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6166] <... symlink resumed>) = 0 [pid 6161] close(18 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6166] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 6164] <... openat resumed>) = 3 [pid 6163] <... close resumed>) = 0 [pid 6161] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] unlink("./53/cgroup.cpu" [pid 6166] <... symlink resumed>) = 0 [pid 6164] write(3, "1000", 4 [pid 6163] close(4 [pid 6166] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 6161] close(19 [pid 5875] <... unlink resumed>) = 0 [pid 6166] <... symlink resumed>) = 0 [pid 6164] <... write resumed>) = 4 [pid 6163] <... close resumed>) = 0 [pid 6161] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6166] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6164] close(3 [pid 6161] close(20 [pid 5875] umount2("./53/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6166] <... openat resumed>) = 3 [pid 6164] <... close resumed>) = 0 [pid 6163] close(5 [pid 6166] write(3, "1000", 4 [pid 6161] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6166] <... write resumed>) = 4 [pid 6163] <... close resumed>) = 0 [pid 6161] close(21 [pid 5875] newfstatat(AT_FDCWD, "./53/cgroup", [pid 6164] read(200, 0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6163] close(6 [pid 6166] close(3 [pid 6164] symlink("/dev/binderfs", "./binderfs" [pid 6161] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6166] <... close resumed>) = 0 [pid 6163] <... close resumed>) = 0 [pid 6164] <... symlink resumed>) = 0 [pid 6166] read(200, [pid 6161] close(22 [pid 5875] unlink("./53/cgroup"executing program [pid 6166] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6164] write(1, "executing program\n", 18 [pid 6163] close(7 [pid 6161] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 [pid 6166] symlink("/dev/binderfs", "./binderfs" [pid 6164] <... write resumed>) = 18 [pid 6163] <... close resumed>) = 0 [pid 6161] close(23 [pid 6164] perf_event_open( [pid 6166] <... symlink resumed>) = 0 [pid 6163] close(8 [pid 6161] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] getdents64(3, executing program [pid 6166] write(1, "executing program\n", 18 [pid 6164] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6163] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6161] close(24 [pid 6163] close(9 [pid 6166] <... write resumed>) = 18 [pid 6164] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6166] perf_event_open( [pid 6164] <... bpf resumed>) = 4 [pid 6163] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6161] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6161] close(25 [pid 5875] close(3 [pid 6164] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6163] close(10 [pid 6161] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... close resumed>) = 0 [pid 6166] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6163] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6161] close(26 [pid 5875] rmdir("./53" [pid 6166] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6163] close(11 [pid 6161] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... rmdir resumed>) = 0 [pid 6163] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6161] close(27 [pid 5875] mkdir("./54", 0777 [pid 6166] <... bpf resumed>) = 4 [pid 6163] close(12 [pid 6161] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... mkdir resumed>) = 0 [pid 6163] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6161] close(28 [pid 6163] close(13 [pid 6161] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6166] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6164] <... bpf resumed>) = 5 [pid 6163] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6161] close(29./strace-static-x86_64: Process 6167 attached [pid 6163] close(14 [pid 6161] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6167] set_robust_list(0x5555947fb660, 24 [pid 6164] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6163] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6161] exit_group(0 [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 56 [pid 6167] <... set_robust_list resumed>) = 0 [pid 6161] <... exit_group resumed>) = ? [pid 6167] chdir("./54") = 0 [pid 6164] <... bpf resumed>) = 6 [pid 6163] close(15 [pid 6161] +++ exited with 0 +++ [pid 6164] perf_event_open( [pid 6163] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=58, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 6163] close(16 [pid 6167] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6163] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6167] <... prctl resumed>) = 0 [pid 6163] close(17 [pid 5876] restart_syscall(<... resuming interrupted clone ...> [pid 6167] setpgid(0, 0 [pid 6163] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6167] <... setpgid resumed>) = 0 [pid 6163] close(18 [pid 5876] <... restart_syscall resumed>) = 0 [pid 6163] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6163] close(19 [pid 6167] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 6166] <... bpf resumed>) = 5 [pid 6164] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6163] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6167] <... symlink resumed>) = 0 [pid 6163] close(20 [pid 5876] umount2("./56", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6167] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 6166] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6163] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6167] <... symlink resumed>) = 0 [pid 6163] close(21 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6167] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 6166] <... bpf resumed>) = 6 [pid 6167] <... symlink resumed>) = 0 [pid 6166] perf_event_open( [pid 6164] close(3 [pid 6163] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] openat(AT_FDCWD, "./56", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6167] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6163] close(22 [pid 6167] <... openat resumed>) = 3 [pid 6166] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5876] <... openat resumed>) = 3 [pid 6167] write(3, "1000", 4 [pid 6163] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6167] <... write resumed>) = 4 [pid 6167] close(3 [pid 6163] close(23 [pid 6167] <... close resumed>) = 0 [pid 6167] read(200, 0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6163] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6167] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6166] close(3 [pid 6163] close(24) = -1 EBADF (Bad file descriptor) [pid 6167] write(1, "executing program\n", 18executing program [pid 6164] <... close resumed>) = 0 [pid 6163] close(25 [pid 5876] newfstatat(3, "", [pid 6167] <... write resumed>) = 18 [pid 6164] close(4 [pid 6167] perf_event_open( [pid 6164] <... close resumed>) = 0 [pid 6163] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6164] close(5 [pid 6163] close(26 [pid 5876] getdents64(3, 0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5876] umount2("./56/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6163] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6164] <... close resumed>) = 0 [pid 6163] close(27 [pid 5876] newfstatat(AT_FDCWD, "./56/binderfs", [pid 6164] close(6 [pid 6163] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] unlink("./56/binderfs" [pid 6163] close(28 [pid 5876] <... unlink resumed>) = 0 [pid 5876] umount2("./56/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6167] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6166] <... close resumed>) = 0 [pid 6164] <... close resumed>) = 0 [pid 6163] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6167] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6166] close(4 [pid 6164] close(7 [pid 6163] close(29 [pid 5876] newfstatat(AT_FDCWD, "./56/cgroup.net", [pid 6167] <... bpf resumed>) = 4 [pid 6166] <... close resumed>) = 0 [pid 6164] <... close resumed>) = 0 [pid 6163] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6166] close(5 [pid 6164] close(8 [pid 6163] exit_group(0 [pid 5876] unlink("./56/cgroup.net" [pid 6167] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6164] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6163] <... exit_group resumed>) = ? [pid 6166] <... close resumed>) = 0 [pid 6164] close(9 [pid 5876] <... unlink resumed>) = 0 [pid 6167] <... bpf resumed>) = 5 [pid 5876] umount2("./56/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6164] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6166] close(6 [pid 6164] close(10 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6167] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6166] <... close resumed>) = 0 [pid 6164] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6164] close(11) = -1 EBADF (Bad file descriptor) [pid 6164] close(12) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(AT_FDCWD, "./56/cgroup.cpu", [pid 6166] close(7 [pid 6164] close(13 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6166] <... close resumed>) = 0 [pid 6164] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6163] +++ exited with 0 +++ [pid 6166] close(8 [pid 6164] close(14 [pid 5876] unlink("./56/cgroup.cpu" [pid 6167] <... bpf resumed>) = 6 [pid 6166] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6164] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 6164] close(15 [pid 6166] close(9 [pid 5876] umount2("./56/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6167] perf_event_open( [pid 6164] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=54, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6167] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6166] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6164] close(16 [pid 6167] close(3 [pid 6166] close(10 [pid 6164] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(AT_FDCWD, "./56/cgroup", [pid 5874] restart_syscall(<... resuming interrupted clone ...> [pid 6166] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6164] close(17 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6166] close(11 [pid 6164] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6166] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6164] close(18 [pid 5876] unlink("./56/cgroup" [pid 6166] close(12 [pid 6164] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 5874] <... restart_syscall resumed>) = 0 [pid 6166] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6164] close(19 [pid 6166] close(13 [pid 6164] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] getdents64(3, [pid 6166] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6166] close(14 [pid 6164] close(20 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6166] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6166] close(15 [pid 6164] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] close(3 [pid 6166] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6164] close(21 [pid 6166] close(16 [pid 6164] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... close resumed>) = 0 [pid 6166] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6164] close(22 [pid 6166] close(17 [pid 6164] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] rmdir("./56" [pid 6166] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6164] close(23 [pid 6166] close(18 [pid 6164] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6166] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6164] close(24 [pid 6166] close(19 [pid 6164] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./52", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6166] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6166] close(20 [pid 6164] close(25 [pid 5874] openat(AT_FDCWD, "./52", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6166] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6164] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6166] close(21 [pid 6164] close(26 [pid 6166] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6166] close(22 [pid 6164] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6166] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6164] close(27 [pid 6166] close(23 [pid 6164] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6166] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6166] close(24 [pid 6164] close(28 [pid 6166] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6166] close(25 [pid 6164] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6166] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6164] close(29 [pid 6166] close(26 [pid 6164] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6164] exit_group(0 [pid 6166] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6166] close(27) = -1 EBADF (Bad file descriptor) [pid 6166] close(28 [pid 6164] <... exit_group resumed>) = ? [pid 6166] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6166] close(29 [pid 5876] <... rmdir resumed>) = 0 [pid 5874] <... openat resumed>) = 3 [pid 6166] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] mkdir("./57", 0777 [pid 5874] newfstatat(3, "", [pid 6166] exit_group(0 [pid 6164] +++ exited with 0 +++ [pid 5876] <... mkdir resumed>) = 0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6166] <... exit_group resumed>) = ? [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5874] getdents64(3, 0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6166] +++ exited with 0 +++ [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=57, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5874] umount2("./52/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5877] umount2("./55", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 6168 attached [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] newfstatat(AT_FDCWD, "./52/binderfs", [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=57, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6168] set_robust_list(0x5555947fb660, 24 [pid 5877] openat(AT_FDCWD, "./55", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6168] <... set_robust_list resumed>) = 0 [pid 5877] <... openat resumed>) = 3 [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 59 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] umount2("./55", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] unlink("./52/binderfs" [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6168] chdir("./57" [pid 5877] newfstatat(3, "", [pid 5874] <... unlink resumed>) = 0 [pid 5873] openat(AT_FDCWD, "./55", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6168] <... chdir resumed>) = 0 [pid 6167] <... close resumed>) = 0 [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5874] umount2("./52/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... openat resumed>) = 3 [pid 6168] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6167] close(4 [pid 5877] getdents64(3, [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] newfstatat(3, "", [pid 6168] <... prctl resumed>) = 0 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5874] newfstatat(AT_FDCWD, "./52/cgroup.net", [pid 6168] setpgid(0, 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6167] <... close resumed>) = 0 [pid 5877] umount2("./55/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6168] <... setpgid resumed>) = 0 [pid 6167] close(5 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] unlink("./52/cgroup.net" [pid 5873] getdents64(3, [pid 6168] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5877] newfstatat(AT_FDCWD, "./55/binderfs", [pid 6168] <... symlink resumed>) = 0 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5877] unlink("./55/binderfs" [pid 6168] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 6167] <... close resumed>) = 0 [pid 5877] <... unlink resumed>) = 0 [pid 6168] <... symlink resumed>) = 0 [pid 5874] <... unlink resumed>) = 0 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6168] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5877] umount2("./55/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] umount2("./55/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6168] <... symlink resumed>) = 0 [pid 6167] close(6 [pid 5874] umount2("./52/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6168] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6168] <... openat resumed>) = 3 [pid 5877] newfstatat(AT_FDCWD, "./55/cgroup.net", [pid 6167] <... close resumed>) = 0 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6168] write(3, "1000", 4 [pid 5877] unlink("./55/cgroup.net" [pid 5873] newfstatat(AT_FDCWD, "./55/binderfs", [pid 6168] <... write resumed>) = 4 [pid 5877] <... unlink resumed>) = 0 [pid 6168] close(3) = 0 [pid 5877] umount2("./55/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6168] read(200, 0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6168] symlink("/dev/binderfs", "./binderfs" [pid 5877] newfstatat(AT_FDCWD, "./55/cgroup.cpu", [pid 6168] <... symlink resumed>) = 0 [pid 6167] close(7 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 executing program [pid 5874] newfstatat(AT_FDCWD, "./52/cgroup.cpu", [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6168] write(1, "executing program\n", 18 [pid 5877] unlink("./55/cgroup.cpu" [pid 5873] unlink("./55/binderfs" [pid 6168] <... write resumed>) = 18 [pid 5877] <... unlink resumed>) = 0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6167] <... close resumed>) = 0 [pid 5874] unlink("./52/cgroup.cpu" [pid 6167] close(8 [pid 6168] perf_event_open( [pid 6167] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./55/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... unlink resumed>) = 0 [pid 5873] <... unlink resumed>) = 0 [pid 6167] close(9 [pid 5874] umount2("./52/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6167] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] umount2("./55/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6168] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6167] close(10 [pid 5877] newfstatat(AT_FDCWD, "./55/cgroup", [pid 5874] newfstatat(AT_FDCWD, "./52/cgroup", [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6168] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6167] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] newfstatat(AT_FDCWD, "./55/cgroup.net", [pid 6168] <... bpf resumed>) = 4 [pid 5877] unlink("./55/cgroup" [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6168] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6167] close(11 [pid 5877] <... unlink resumed>) = 0 [pid 6167] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] getdents64(3, [pid 5874] unlink("./52/cgroup" [pid 5873] unlink("./55/cgroup.net" [pid 6167] close(12 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5873] <... unlink resumed>) = 0 [pid 5877] close(3 [pid 6167] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... close resumed>) = 0 [pid 5874] <... unlink resumed>) = 0 [pid 6167] close(13) = -1 EBADF (Bad file descriptor) [pid 5877] rmdir("./55" [pid 5874] getdents64(3, [pid 5873] umount2("./55/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6167] close(14 [pid 5877] <... rmdir resumed>) = 0 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6168] <... bpf resumed>) = 5 [pid 6167] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] mkdir("./56", 0777 [pid 5874] close(3 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6168] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6167] close(15 [pid 5877] <... mkdir resumed>) = 0 [pid 5874] <... close resumed>) = 0 [pid 5873] newfstatat(AT_FDCWD, "./55/cgroup.cpu", [pid 6168] <... bpf resumed>) = 6 [pid 6167] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5874] rmdir("./52" [pid 6167] close(16 [pid 5874] <... rmdir resumed>) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6167] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6167] close(17) = -1 EBADF (Bad file descriptor) [pid 5874] mkdir("./53", 0777 [pid 5873] unlink("./55/cgroup.cpu"./strace-static-x86_64: Process 6169 attached [pid 6168] perf_event_open( [pid 6167] close(18 [pid 5874] <... mkdir resumed>) = 0 [pid 5873] <... unlink resumed>) = 0 [pid 6169] set_robust_list(0x5555947fb660, 24 [pid 6168] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6167] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 58 [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6169] <... set_robust_list resumed>) = 0 [pid 6167] close(19) = -1 EBADF (Bad file descriptor) [pid 6167] close(20) = -1 EBADF (Bad file descriptor) [pid 6167] close(21) = -1 EBADF (Bad file descriptor) [pid 6167] close(22) = -1 EBADF (Bad file descriptor) [pid 6167] close(23) = -1 EBADF (Bad file descriptor) [pid 6167] close(24) = -1 EBADF (Bad file descriptor) [pid 6167] close(25./strace-static-x86_64: Process 6170 attached [pid 6170] set_robust_list(0x5555947fb660, 24 [pid 6167] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6170] <... set_robust_list resumed>) = 0 [pid 6167] close(26 [pid 6170] chdir("./53" [pid 6168] close(3 [pid 6167] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6169] chdir("./56" [pid 6170] <... chdir resumed>) = 0 [pid 6167] close(27 [pid 6170] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6167] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6170] <... prctl resumed>) = 0 [pid 6169] <... chdir resumed>) = 0 [pid 6167] close(28 [pid 5873] umount2("./55/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6170] setpgid(0, 0) = 0 [pid 6167] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6170] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 6167] close(29) = -1 EBADF (Bad file descriptor) [pid 6169] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6167] exit_group(0 [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 55 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6170] <... symlink resumed>) = 0 [pid 6169] <... prctl resumed>) = 0 [pid 6167] <... exit_group resumed>) = ? [pid 5873] newfstatat(AT_FDCWD, "./55/cgroup", [pid 6170] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 6169] setpgid(0, 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6169] <... setpgid resumed>) = 0 [pid 5873] unlink("./55/cgroup" [pid 6169] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5873] <... unlink resumed>) = 0 [pid 6169] <... symlink resumed>) = 0 [pid 6167] +++ exited with 0 +++ [pid 5873] getdents64(3, [pid 6169] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6170] <... symlink resumed>) = 0 [pid 6169] <... symlink resumed>) = 0 [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=56, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5873] close(3 [pid 5875] umount2("./54", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... close resumed>) = 0 [pid 6169] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] rmdir("./55" [pid 6170] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 6169] <... symlink resumed>) = 0 [pid 5875] openat(AT_FDCWD, "./54", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5873] <... rmdir resumed>) = 0 [pid 6170] <... symlink resumed>) = 0 [pid 6169] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5875] <... openat resumed>) = 3 [pid 5873] mkdir("./56", 0777 [pid 6170] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6169] <... openat resumed>) = 3 [pid 6170] <... openat resumed>) = 3 [pid 5875] newfstatat(3, "", [pid 5873] <... mkdir resumed>) = 0 [pid 6170] write(3, "1000", 4 [pid 6169] write(3, "1000", 4 [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6170] <... write resumed>) = 4 [pid 5875] getdents64(3, [pid 6170] close(3 [pid 6169] <... write resumed>) = 4 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6169] close(3 [pid 5875] umount2("./54/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6170] <... close resumed>) = 0 [pid 6169] <... close resumed>) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6170] read(200, 0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6169] read(200, [pid 5875] newfstatat(AT_FDCWD, "./54/binderfs", [pid 6170] symlink("/dev/binderfs", "./binderfs" [pid 6169] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] unlink("./54/binderfs" [pid 6169] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 6168] <... close resumed>) = 0 [pid 6168] close(4) = 0 [pid 5875] <... unlink resumed>) = 0 [pid 6169] write(1, "executing program\n", 18) = 18 [pid 6168] close(5 [pid 5875] umount2("./54/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6168] <... close resumed>) = 0 [pid 6170] <... symlink resumed>) = 0 [pid 6169] perf_event_open( [pid 6168] close(6./strace-static-x86_64: Process 6171 attached executing program [pid 6170] write(1, "executing program\n", 18 [pid 6169] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6168] <... close resumed>) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 58 [pid 6170] <... write resumed>) = 18 [pid 6169] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6170] perf_event_open( [pid 5875] newfstatat(AT_FDCWD, "./54/cgroup.net", [pid 6171] set_robust_list(0x5555947fb660, 24 [pid 6168] close(7 [pid 6171] <... set_robust_list resumed>) = 0 [pid 6170] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6169] <... bpf resumed>) = 4 [pid 6168] <... close resumed>) = 0 [pid 6171] chdir("./56" [pid 6170] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6169] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6171] <... chdir resumed>) = 0 [pid 6170] <... bpf resumed>) = 4 [pid 6169] <... bpf resumed>) = 5 [pid 6168] close(8 [pid 5875] unlink("./54/cgroup.net" [pid 6171] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6168] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6171] <... prctl resumed>) = 0 [pid 6169] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6168] close(9 [pid 6171] setpgid(0, 0 [pid 6170] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6168] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 [pid 6171] <... setpgid resumed>) = 0 [pid 6169] <... bpf resumed>) = 6 [pid 6168] close(10 [pid 6171] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 6169] perf_event_open( [pid 6168] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6171] <... symlink resumed>) = 0 [pid 6169] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6168] close(11) = -1 EBADF (Bad file descriptor) [pid 6171] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 6168] close(12 [pid 6170] <... bpf resumed>) = 5 [pid 6169] close(3 [pid 6168] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./54/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6168] close(13) = -1 EBADF (Bad file descriptor) [pid 6169] <... close resumed>) = 0 [pid 6168] close(14) = -1 EBADF (Bad file descriptor) [pid 6168] close(15) = -1 EBADF (Bad file descriptor) [pid 6171] <... symlink resumed>) = 0 [pid 6169] close(4 [pid 6168] close(16 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6170] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6168] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(AT_FDCWD, "./54/cgroup.cpu", [pid 6171] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 6169] <... close resumed>) = 0 [pid 6168] close(17 [pid 6171] <... symlink resumed>) = 0 [pid 6170] <... bpf resumed>) = 6 [pid 6169] close(5 [pid 6168] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6170] perf_event_open( [pid 6168] close(18 [pid 6171] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6170] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6169] <... close resumed>) = 0 [pid 6168] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] unlink("./54/cgroup.cpu" [pid 6171] <... openat resumed>) = 3 [pid 6168] close(19) = -1 EBADF (Bad file descriptor) [pid 6168] close(20 [pid 6169] close(6 [pid 6168] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 [pid 6171] write(3, "1000", 4 [pid 6168] close(21 [pid 6171] <... write resumed>) = 4 [pid 6168] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6171] close(3 [pid 6168] close(22) = -1 EBADF (Bad file descriptor) [pid 6168] close(23) = -1 EBADF (Bad file descriptor) [pid 6168] close(24) = -1 EBADF (Bad file descriptor) [pid 6171] <... close resumed>) = 0 [pid 6168] close(25 [pid 6171] read(200, [pid 6168] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6170] close(3 [pid 6169] <... close resumed>) = 0 [pid 5875] umount2("./54/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6168] close(26 [pid 6171] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6168] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6171] symlink("/dev/binderfs", "./binderfs" [pid 5875] newfstatat(AT_FDCWD, "./54/cgroup", [pid 6171] <... symlink resumed>) = 0 [pid 6169] close(7executing program [pid 6171] write(1, "executing program\n", 18 [pid 6169] <... close resumed>) = 0 [pid 6171] <... write resumed>) = 18 [pid 6169] close(8 [pid 6171] perf_event_open( [pid 6169] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6169] close(9) = -1 EBADF (Bad file descriptor) [pid 6169] close(10) = -1 EBADF (Bad file descriptor) [pid 6169] close(11) = -1 EBADF (Bad file descriptor) [pid 6169] close(12) = -1 EBADF (Bad file descriptor) [pid 6169] close(13) = -1 EBADF (Bad file descriptor) [pid 6169] close(14) = -1 EBADF (Bad file descriptor) [pid 6169] close(15) = -1 EBADF (Bad file descriptor) [pid 6169] close(16) = -1 EBADF (Bad file descriptor) [pid 6169] close(17) = -1 EBADF (Bad file descriptor) [pid 6169] close(18) = -1 EBADF (Bad file descriptor) [pid 6169] close(19) = -1 EBADF (Bad file descriptor) [pid 6169] close(20) = -1 EBADF (Bad file descriptor) [pid 6169] close(21) = -1 EBADF (Bad file descriptor) [pid 6169] close(22) = -1 EBADF (Bad file descriptor) [pid 6169] close(23) = -1 EBADF (Bad file descriptor) [pid 6169] close(24 [pid 6168] close(27 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6169] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6168] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] unlink("./54/cgroup" [pid 6169] close(25 [pid 6168] close(28 [pid 5875] <... unlink resumed>) = 0 [pid 6169] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6168] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] getdents64(3, [pid 6169] close(26 [pid 6168] close(29 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6169] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6168] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] close(3 [pid 6169] close(27 [pid 5875] <... close resumed>) = 0 [pid 6169] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6168] exit_group(0 [pid 5875] rmdir("./54" [pid 6169] close(28 [pid 6168] <... exit_group resumed>) = ? [pid 6169] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... rmdir resumed>) = 0 [pid 6169] close(29) = -1 EBADF (Bad file descriptor) [pid 5875] mkdir("./55", 0777 [pid 6169] exit_group(0) = ? [pid 5875] <... mkdir resumed>) = 0 [pid 6168] +++ exited with 0 +++ [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=59, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5876] restart_syscall(<... resuming interrupted clone ...> [pid 6169] +++ exited with 0 +++ ./strace-static-x86_64: Process 6172 attached [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=58, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6171] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6170] <... close resumed>) = 0 [pid 5876] <... restart_syscall resumed>) = 0 [pid 6172] set_robust_list(0x5555947fb660, 24 [pid 6171] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6170] close(4 [pid 5877] restart_syscall(<... resuming interrupted clone ...> [pid 6172] <... set_robust_list resumed>) = 0 [pid 6171] <... bpf resumed>) = 4 [pid 5877] <... restart_syscall resumed>) = 0 [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 57 [pid 6172] chdir("./55") = 0 [pid 6171] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5876] umount2("./57", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6172] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6170] <... close resumed>) = 0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6172] <... prctl resumed>) = 0 [pid 6170] close(5 [pid 5877] umount2("./56", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] openat(AT_FDCWD, "./57", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6172] setpgid(0, 0 [pid 6170] <... close resumed>) = 0 [pid 5876] <... openat resumed>) = 3 [pid 6170] close(6 [pid 6172] <... setpgid resumed>) = 0 [pid 5876] newfstatat(3, "", [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6172] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 6171] <... bpf resumed>) = 5 [pid 5877] openat(AT_FDCWD, "./56", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6172] <... symlink resumed>) = 0 [pid 6171] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6170] <... close resumed>) = 0 [pid 5877] <... openat resumed>) = 3 [pid 5876] getdents64(3, [pid 6172] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 6170] close(7 [pid 5877] newfstatat(3, "", [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6172] <... symlink resumed>) = 0 [pid 6171] <... bpf resumed>) = 6 [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5876] umount2("./57/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6172] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 6171] perf_event_open( [pid 5877] getdents64(3, [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6172] <... symlink resumed>) = 0 [pid 6170] <... close resumed>) = 0 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6172] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6171] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6170] close(8 [pid 5877] umount2("./56/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] newfstatat(AT_FDCWD, "./57/binderfs", [pid 6172] <... openat resumed>) = 3 [pid 6170] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6172] write(3, "1000", 4 [pid 5877] newfstatat(AT_FDCWD, "./56/binderfs", [pid 5876] unlink("./57/binderfs" [pid 6172] <... write resumed>) = 4 [pid 6171] close(3 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] <... unlink resumed>) = 0 [pid 6172] close(3 [pid 6170] close(9 [pid 5877] unlink("./56/binderfs" [pid 5876] umount2("./57/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6172] <... close resumed>) = 0 [pid 5877] <... unlink resumed>) = 0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6172] read(200, [pid 5877] umount2("./56/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6172] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) executing program [pid 5876] newfstatat(AT_FDCWD, "./57/cgroup.net", [pid 6172] symlink("/dev/binderfs", "./binderfs" [pid 5877] newfstatat(AT_FDCWD, "./56/cgroup.net", [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6172] <... symlink resumed>) = 0 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6172] write(1, "executing program\n", 18 [pid 5877] unlink("./56/cgroup.net" [pid 5876] unlink("./57/cgroup.net" [pid 6172] <... write resumed>) = 18 [pid 5877] <... unlink resumed>) = 0 [pid 5876] <... unlink resumed>) = 0 [pid 6170] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6170] close(10) = -1 EBADF (Bad file descriptor) [pid 6172] perf_event_open( [pid 6170] close(11 [pid 5877] umount2("./56/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] umount2("./57/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6170] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6170] close(12 [pid 5877] newfstatat(AT_FDCWD, "./56/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6170] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(AT_FDCWD, "./57/cgroup.cpu", [pid 6170] close(13 [pid 5877] unlink("./56/cgroup.cpu" [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6170] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 5876] unlink("./57/cgroup.cpu" [pid 6170] close(14 [pid 5876] <... unlink resumed>) = 0 [pid 5877] umount2("./56/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5876] umount2("./57/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6170] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./56/cgroup", [pid 6170] close(15 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6170] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./56/cgroup" [pid 5876] newfstatat(AT_FDCWD, "./57/cgroup", [pid 6170] close(16) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 6170] close(17 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6171] <... close resumed>) = 0 [pid 6170] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] getdents64(3, [pid 6171] close(4 [pid 6170] close(18 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5876] unlink("./57/cgroup" [pid 6171] <... close resumed>) = 0 [pid 6172] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6171] close(5 [pid 6170] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 6172] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6171] <... close resumed>) = 0 [pid 6170] close(19 [pid 5877] close(3 [pid 6172] <... bpf resumed>) = 4 [pid 6171] close(6 [pid 6170] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... close resumed>) = 0 [pid 5876] getdents64(3, [pid 6172] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6170] close(20 [pid 6171] <... close resumed>) = 0 [pid 5877] rmdir("./56" [pid 6171] close(7 [pid 6170] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... rmdir resumed>) = 0 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6171] <... close resumed>) = 0 [pid 6170] close(21 [pid 5877] mkdir("./57", 0777 [pid 6171] close(8 [pid 6170] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] close(3 [pid 6171] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6170] close(22 [pid 6171] close(9 [pid 6170] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6171] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6170] close(23 [pid 6171] close(10 [pid 6170] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6171] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6170] close(24 [pid 6171] close(11 [pid 5876] <... close resumed>) = 0 [pid 6171] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6170] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6171] close(12 [pid 6170] close(25 [pid 5877] <... mkdir resumed>) = 0 [pid 5876] rmdir("./57" [pid 6171] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6170] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6171] close(13) = -1 EBADF (Bad file descriptor) [pid 6170] close(26 [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5876] <... rmdir resumed>) = 0 [pid 6171] close(14) = -1 EBADF (Bad file descriptor) [pid 6170] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6171] close(15 [pid 6170] close(27 [pid 6171] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6170] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6171] close(16 [pid 6170] close(28 [pid 6171] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6170] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6171] close(17 [pid 6170] close(29 [pid 6171] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6171] close(18 [pid 6170] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6172] <... bpf resumed>) = 5 [pid 6171] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6170] exit_group(0 [pid 5876] mkdir("./58", 0777 [pid 6171] close(19 [pid 6170] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 6173 attached [pid 6172] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5876] <... mkdir resumed>) = 0 [pid 6173] set_robust_list(0x5555947fb660, 24 [pid 6172] <... bpf resumed>) = 6 [pid 6171] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 59 [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6173] <... set_robust_list resumed>) = 0 [pid 6172] perf_event_open( [pid 6171] close(20 [pid 6170] +++ exited with 0 +++ ./strace-static-x86_64: Process 6174 attached [pid 6173] chdir("./57" [pid 6172] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6171] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=55, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 6173] <... chdir resumed>) = 0 [pid 6171] close(21 [pid 6174] set_robust_list(0x5555947fb660, 24 [pid 6173] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6172] close(3 [pid 6171] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 60 [pid 6174] <... set_robust_list resumed>) = 0 [pid 6173] <... prctl resumed>) = 0 [pid 6171] close(22 [pid 6173] setpgid(0, 0 [pid 6171] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./53", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6173] <... setpgid resumed>) = 0 [pid 6171] close(23 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6174] chdir("./58" [pid 6173] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 6171] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6174] <... chdir resumed>) = 0 [pid 6171] close(24 [pid 5874] openat(AT_FDCWD, "./53", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6174] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6171] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6174] <... prctl resumed>) = 0 [pid 5874] <... openat resumed>) = 3 [pid 6171] close(25 [pid 6174] setpgid(0, 0 [pid 6173] <... symlink resumed>) = 0 [pid 6171] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] newfstatat(3, "", [pid 6174] <... setpgid resumed>) = 0 [pid 6173] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 6171] close(26 [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6171] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6174] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 6173] <... symlink resumed>) = 0 [pid 6171] close(27 [pid 5874] getdents64(3, [pid 6171] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6174] <... symlink resumed>) = 0 [pid 6173] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 6171] close(28 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6174] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 6171] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6173] <... symlink resumed>) = 0 [pid 6171] close(29 [pid 5874] umount2("./53/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6173] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6171] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6174] <... symlink resumed>) = 0 [pid 6171] exit_group(0 [pid 5874] newfstatat(AT_FDCWD, "./53/binderfs", [pid 6173] <... openat resumed>) = 3 [pid 6171] <... exit_group resumed>) = ? [pid 6174] symlink("/syzcgroup/net/syz3", "./cgroup.net") = 0 [pid 6174] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6171] +++ exited with 0 +++ [pid 6173] write(3, "1000", 4 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6174] write(3, "1000", 4 [pid 6173] <... write resumed>) = 4 [pid 5874] unlink("./53/binderfs" [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=58, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 6173] close(3 [pid 6174] <... write resumed>) = 4 [pid 6173] <... close resumed>) = 0 [pid 5874] <... unlink resumed>) = 0 [pid 6174] close(3 [pid 6173] read(200, [pid 5874] umount2("./53/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] umount2("./56", MNT_FORCE|UMOUNT_NOFOLLOWexecuting program [pid 6174] <... close resumed>) = 0 [pid 6173] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] openat(AT_FDCWD, "./56", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6173] symlink("/dev/binderfs", "./binderfs" [pid 5874] newfstatat(AT_FDCWD, "./53/cgroup.net", [pid 5873] <... openat resumed>) = 3 [pid 5873] newfstatat(3, "", [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5873] getdents64(3, [pid 6174] read(200, [pid 6173] <... symlink resumed>) = 0 [pid 5874] unlink("./53/cgroup.net" [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6174] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6173] write(1, "executing program\n", 18 [pid 5873] umount2("./56/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5873] newfstatat(AT_FDCWD, "./56/binderfs", [pid 6174] symlink("/dev/binderfs", "./binderfs" [pid 6173] <... write resumed>) = 18 [pid 5874] <... unlink resumed>) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] umount2("./53/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] unlink("./56/binderfs" [pid 6173] perf_event_open( [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... unlink resumed>) = 0 [pid 6174] <... symlink resumed>) = 0 [pid 5874] newfstatat(AT_FDCWD, "./53/cgroup.cpu", [pid 5873] umount2("./56/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6174] write(1, "executing program\n", 18 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] newfstatat(AT_FDCWD, "./56/cgroup.net", executing program [pid 6174] <... write resumed>) = 18 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] unlink("./56/cgroup.net" [pid 6174] perf_event_open( [pid 6173] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6172] <... close resumed>) = 0 [pid 5874] unlink("./53/cgroup.cpu" [pid 5873] <... unlink resumed>) = 0 [pid 6173] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6172] close(4 [pid 5874] <... unlink resumed>) = 0 [pid 5873] umount2("./56/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6174] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6174] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6173] <... bpf resumed>) = 4 [pid 6172] <... close resumed>) = 0 [pid 5874] umount2("./53/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6174] <... bpf resumed>) = 4 [pid 6173] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6172] close(5 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6174] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6172] <... close resumed>) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] newfstatat(AT_FDCWD, "./56/cgroup.cpu", [pid 6174] <... bpf resumed>) = 5 [pid 6173] <... bpf resumed>) = 5 [pid 6172] close(6 [pid 5874] newfstatat(AT_FDCWD, "./53/cgroup", [pid 6174] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6173] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] unlink("./53/cgroup" [pid 5873] unlink("./56/cgroup.cpu" [pid 6173] <... bpf resumed>) = 6 [pid 6172] <... close resumed>) = 0 [pid 5874] <... unlink resumed>) = 0 [pid 6174] <... bpf resumed>) = 6 [pid 5874] getdents64(3, [pid 5873] <... unlink resumed>) = 0 [pid 6173] perf_event_open( [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6174] perf_event_open( [pid 6173] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6172] close(7 [pid 5874] close(3 [pid 5873] umount2("./56/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6174] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6172] <... close resumed>) = 0 [pid 5874] <... close resumed>) = 0 [pid 6173] close(3 [pid 5874] rmdir("./53" [pid 6172] close(8 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6174] close(3 [pid 6173] <... close resumed>) = 0 [pid 6172] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... rmdir resumed>) = 0 [pid 5873] newfstatat(AT_FDCWD, "./56/cgroup", [pid 6173] close(4 [pid 6172] close(9 [pid 6173] <... close resumed>) = 0 [pid 5874] mkdir("./54", 0777 [pid 6173] close(5 [pid 5874] <... mkdir resumed>) = 0 [pid 6173] <... close resumed>) = 0 [pid 6172] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6173] close(6 [pid 6172] close(10 [pid 5873] unlink("./56/cgroup" [pid 6172] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6172] close(11 [pid 5873] <... unlink resumed>) = 0 [pid 6172] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6172] close(12 [pid 5873] getdents64(3, [pid 6172] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6173] <... close resumed>) = 0 [pid 6172] close(13 [pid 6173] close(7 [pid 6172] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] close(3 [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 56 ./strace-static-x86_64: Process 6175 attached [pid 6173] <... close resumed>) = 0 [pid 6172] close(14 [pid 5873] <... close resumed>) = 0 [pid 6173] close(8 [pid 6172] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6175] set_robust_list(0x5555947fb660, 24 [pid 5873] rmdir("./56" [pid 6175] <... set_robust_list resumed>) = 0 [pid 6173] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6172] close(15 [pid 5873] <... rmdir resumed>) = 0 [pid 6175] chdir("./54" [pid 6174] <... close resumed>) = 0 [pid 6173] close(9 [pid 6172] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6174] close(4 [pid 5873] mkdir("./57", 0777 [pid 6175] <... chdir resumed>) = 0 [pid 6174] <... close resumed>) = 0 [pid 6173] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6172] close(16 [pid 5873] <... mkdir resumed>) = 0 [pid 6174] close(5 [pid 6172] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6175] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6174] <... close resumed>) = 0 [pid 6173] close(10 [pid 6172] close(17 [pid 6175] <... prctl resumed>) = 0 [pid 6174] close(6 [pid 6173] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6172] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 6176 attached [pid 6175] setpgid(0, 0 [pid 6174] <... close resumed>) = 0 [pid 6173] close(11 [pid 6172] close(18 [pid 6176] set_robust_list(0x5555947fb660, 24 [pid 6175] <... setpgid resumed>) = 0 [pid 6173] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6172] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 59 [pid 6176] <... set_robust_list resumed>) = 0 [pid 6174] close(7 [pid 6176] chdir("./57" [pid 6175] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 6173] close(12 [pid 6172] close(19 [pid 6173] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6172] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6173] close(13 [pid 6172] close(20 [pid 6173] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6172] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6173] close(14 [pid 6172] close(21 [pid 6173] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6172] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6173] close(15 [pid 6176] <... chdir resumed>) = 0 [pid 6175] <... symlink resumed>) = 0 [pid 6174] <... close resumed>) = 0 [pid 6176] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6174] close(8 [pid 6173] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6172] close(22 [pid 6176] <... prctl resumed>) = 0 [pid 6174] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6176] setpgid(0, 0 [pid 6174] close(9 [pid 6176] <... setpgid resumed>) = 0 [pid 6174] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6176] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 6175] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 6174] close(10 [pid 6173] close(16 [pid 6172] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6175] <... symlink resumed>) = 0 [pid 6176] <... symlink resumed>) = 0 [pid 6174] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6173] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6172] close(23 [pid 6176] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 6175] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 6174] close(11 [pid 6173] close(17 [pid 6172] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6176] <... symlink resumed>) = 0 [pid 6175] <... symlink resumed>) = 0 [pid 6174] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6173] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6172] close(24 [pid 6176] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 6175] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6174] close(12 [pid 6173] close(18 [pid 6172] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6176] <... symlink resumed>) = 0 [pid 6175] <... openat resumed>) = 3 [pid 6174] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6173] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6172] close(25 [pid 6176] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6175] write(3, "1000", 4 [pid 6174] close(13 [pid 6173] close(19 [pid 6172] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6175] <... write resumed>) = 4 [pid 6174] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6173] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6172] close(26 [pid 6175] close(3 [pid 6174] close(14 [pid 6173] close(20 [pid 6172] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6176] <... openat resumed>) = 3 [pid 6175] <... close resumed>) = 0 [pid 6174] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6173] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6172] close(27 [pid 6176] write(3, "1000", 4 [pid 6175] read(200, [pid 6176] <... write resumed>) = 4 [pid 6175] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6174] close(15 [pid 6173] close(21 [pid 6172] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6175] symlink("/dev/binderfs", "./binderfs" [pid 6173] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6172] close(28 [pid 6176] close(3 [pid 6174] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6174] close(16 [pid 6173] close(22 [pid 6172] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6176] <... close resumed>) = 0 [pid 6174] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6173] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6172] close(29 [pid 6174] close(17 [pid 6173] close(23 [pid 6172] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6176] read(200, [pid 6174] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6173] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6175] <... symlink resumed>) = 0 [pid 6174] close(18 [pid 6173] close(24 [pid 6172] exit_group(0 [pid 6176] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) executing program [pid 6175] write(1, "executing program\n", 18 [pid 6176] symlink("/dev/binderfs", "./binderfs" [pid 6174] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6173] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6172] <... exit_group resumed>) = ? [pid 6175] <... write resumed>) = 18 [pid 6174] close(19 [pid 6173] close(25 [pid 6174] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6176] <... symlink resumed>) = 0 [pid 6175] perf_event_open( [pid 6173] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6173] close(26 [pid 6174] close(20executing program [pid 6176] write(1, "executing program\n", 18 [pid 6174] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6173] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6174] close(21 [pid 6176] <... write resumed>) = 18 [pid 6173] close(27 [pid 6174] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6173] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6174] close(22 [pid 6175] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6173] close(28 [pid 6176] perf_event_open( [pid 6175] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6174] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6172] +++ exited with 0 +++ [pid 6173] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6176] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6175] <... bpf resumed>) = 4 [pid 6174] close(23 [pid 6173] close(29 [pid 6176] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6175] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6174] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6173] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=57, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6176] <... bpf resumed>) = 4 [pid 6173] exit_group(0 [pid 6176] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6174] close(24 [pid 6173] <... exit_group resumed>) = ? [pid 6175] <... bpf resumed>) = 5 [pid 6175] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6174] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./55", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6175] <... bpf resumed>) = 6 [pid 6174] close(25 [pid 6175] perf_event_open( [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6175] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5875] openat(AT_FDCWD, "./55", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6173] +++ exited with 0 +++ [pid 6175] close(3 [pid 5875] <... openat resumed>) = 3 [pid 6176] <... bpf resumed>) = 5 [pid 6174] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(3, "", [pid 6176] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6174] close(26 [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=59, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 6176] <... bpf resumed>) = 6 [pid 6174] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6174] close(27 [pid 5877] restart_syscall(<... resuming interrupted clone ...> [pid 6176] perf_event_open( [pid 6174] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6176] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6174] close(28 [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6174] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6176] close(3 [pid 6174] close(29 [pid 5875] getdents64(3, [pid 6174] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6175] <... close resumed>) = 0 [pid 6174] exit_group(0 [pid 5877] <... restart_syscall resumed>) = 0 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6174] <... exit_group resumed>) = ? [pid 6175] close(4 [pid 5875] umount2("./55/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6175] <... close resumed>) = 0 [pid 6176] <... close resumed>) = 0 [pid 6175] close(5 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6176] close(4) = 0 [pid 6175] <... close resumed>) = 0 [pid 6174] +++ exited with 0 +++ [pid 5877] umount2("./57", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] newfstatat(AT_FDCWD, "./55/binderfs", [pid 6176] close(5 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6176] <... close resumed>) = 0 [pid 6175] close(6 [pid 5877] openat(AT_FDCWD, "./57", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6176] close(6 [pid 5877] <... openat resumed>) = 3 [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=60, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 6176] <... close resumed>) = 0 [pid 5877] newfstatat(3, "", [pid 5875] unlink("./55/binderfs" [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5877] getdents64(3, 0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6175] <... close resumed>) = 0 [pid 5877] umount2("./57/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6176] close(7 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] restart_syscall(<... resuming interrupted clone ...> [pid 5875] <... unlink resumed>) = 0 [pid 6176] <... close resumed>) = 0 [pid 6175] close(7 [pid 5877] newfstatat(AT_FDCWD, "./57/binderfs", [pid 6176] close(8 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] umount2("./55/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6176] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6175] <... close resumed>) = 0 [pid 5877] unlink("./57/binderfs" [pid 6176] close(9 [pid 6175] close(8 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6176] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6175] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 5875] newfstatat(AT_FDCWD, "./55/cgroup.net", [pid 6176] close(10) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./57/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6176] close(11 [pid 6175] close(9 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6176] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6175] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./57/cgroup.net", [pid 6176] close(12 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6176] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./57/cgroup.net" [pid 6176] close(13 [pid 5877] <... unlink resumed>) = 0 [pid 6176] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6176] close(14 [pid 5877] umount2("./57/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6176] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6176] close(15) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./57/cgroup.cpu", [pid 6176] close(16 [pid 6175] close(10 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] <... restart_syscall resumed>) = 0 [pid 5875] unlink("./55/cgroup.net" [pid 6176] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6175] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./57/cgroup.cpu" [pid 6176] close(17 [pid 6175] close(11 [pid 5877] <... unlink resumed>) = 0 [pid 5875] <... unlink resumed>) = 0 [pid 6176] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6175] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6175] close(12 [pid 5875] umount2("./55/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6176] close(18 [pid 6175] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./57/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] umount2("./58", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6176] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6175] close(13 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] newfstatat(AT_FDCWD, "./55/cgroup.cpu", [pid 6176] close(19 [pid 6175] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./57/cgroup", [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6176] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6175] close(14 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] openat(AT_FDCWD, "./58", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6176] close(20 [pid 6175] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6175] close(15 [pid 6176] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6175] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./57/cgroup" [pid 5875] unlink("./55/cgroup.cpu" [pid 6176] close(21 [pid 5877] <... unlink resumed>) = 0 [pid 6176] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] getdents64(3, [pid 6176] close(22) = -1 EBADF (Bad file descriptor) [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6176] close(23 [pid 5877] close(3 [pid 6176] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... close resumed>) = 0 [pid 6176] close(24 [pid 5877] rmdir("./57" [pid 6176] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... rmdir resumed>) = 0 [pid 6176] close(25 [pid 6175] close(16 [pid 5876] <... openat resumed>) = 3 [pid 5875] <... unlink resumed>) = 0 [pid 6175] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6176] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6175] close(17 [pid 5877] mkdir("./58", 0777 [pid 5876] newfstatat(3, "", [pid 5875] umount2("./55/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6176] close(26 [pid 6175] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6176] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6175] close(18 [pid 5877] <... mkdir resumed>) = 0 [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6176] close(27 [pid 6175] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5876] getdents64(3, [pid 5875] newfstatat(AT_FDCWD, "./55/cgroup", [pid 6176] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6175] close(19 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5876] umount2("./58/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6176] close(28 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 6177 attached [pid 6176] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6175] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] unlink("./55/cgroup" [pid 6177] set_robust_list(0x5555947fb660, 24 [pid 6176] close(29 [pid 6175] close(20 [pid 5876] newfstatat(AT_FDCWD, "./58/binderfs", [pid 6176] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6175] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] <... unlink resumed>) = 0 [pid 6177] <... set_robust_list resumed>) = 0 [pid 6176] exit_group(0 [pid 6175] close(21 [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 60 [pid 5876] unlink("./58/binderfs" [pid 5875] getdents64(3, [pid 6175] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 6175] close(22 [pid 5876] umount2("./58/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6176] <... exit_group resumed>) = ? [pid 6175] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6175] close(23 [pid 5876] newfstatat(AT_FDCWD, "./58/cgroup.net", [pid 6175] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] close(3 [pid 6177] chdir("./58" [pid 6175] close(24 [pid 5876] unlink("./58/cgroup.net" [pid 6175] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 6175] close(25 [pid 5876] umount2("./58/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6175] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... close resumed>) = 0 [pid 6177] <... chdir resumed>) = 0 [pid 6176] +++ exited with 0 +++ [pid 5875] rmdir("./55" [pid 6175] close(26 [pid 6177] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6175] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... rmdir resumed>) = 0 [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=59, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 6177] <... prctl resumed>) = 0 [pid 6175] close(27 [pid 5876] newfstatat(AT_FDCWD, "./58/cgroup.cpu", [pid 5875] mkdir("./56", 0777 [pid 6177] setpgid(0, 0 [pid 6175] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] <... mkdir resumed>) = 0 [pid 6175] close(28 [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6175] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6177] <... setpgid resumed>) = 0 [pid 6175] close(29 [pid 5876] unlink("./58/cgroup.cpu"./strace-static-x86_64: Process 6178 attached [pid 6177] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 6175] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6178] set_robust_list(0x5555947fb660, 24 [pid 6175] exit_group(0 [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 58 [pid 6178] <... set_robust_list resumed>) = 0 [pid 6175] <... exit_group resumed>) = ? [pid 6178] chdir("./56" [pid 5876] <... unlink resumed>) = 0 [pid 5873] umount2("./57", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6177] <... symlink resumed>) = 0 [pid 5876] umount2("./58/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6177] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] openat(AT_FDCWD, "./57", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6177] <... symlink resumed>) = 0 [pid 6175] +++ exited with 0 +++ [pid 6178] <... chdir resumed>) = 0 [pid 6178] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=56, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 6178] setpgid(0, 0 [pid 6177] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5876] newfstatat(AT_FDCWD, "./58/cgroup", [pid 5873] <... openat resumed>) = 3 [pid 6178] <... setpgid resumed>) = 0 [pid 6177] <... symlink resumed>) = 0 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] restart_syscall(<... resuming interrupted clone ...> [pid 5873] newfstatat(3, "", [pid 6177] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5876] unlink("./58/cgroup" [pid 5874] <... restart_syscall resumed>) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6178] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 6177] <... openat resumed>) = 3 [pid 5876] <... unlink resumed>) = 0 [pid 5873] getdents64(3, [pid 6178] <... symlink resumed>) = 0 [pid 6177] write(3, "1000", 4 [pid 5876] getdents64(3, [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6178] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5874] umount2("./54", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6177] <... write resumed>) = 4 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] umount2("./57/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6178] <... symlink resumed>) = 0 [pid 6177] close(3 [pid 5876] close(3 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6178] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 6177] <... close resumed>) = 0 [pid 5876] <... close resumed>) = 0 [pid 5874] openat(AT_FDCWD, "./54", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5873] newfstatat(AT_FDCWD, "./57/binderfs", [pid 6178] <... symlink resumed>) = 0 [pid 6177] read(200, [pid 5876] rmdir("./58" [pid 5874] <... openat resumed>) = 3 [pid 6178] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6177] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5876] <... rmdir resumed>) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6178] write(3, "1000", 4 [pid 5874] getdents64(3, [pid 6178] <... write resumed>) = 4 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6178] close(3 [pid 5874] umount2("./54/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6178] <... close resumed>) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6178] read(200, [pid 5874] newfstatat(AT_FDCWD, "./54/binderfs", [pid 6178] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6177] symlink("/dev/binderfs", "./binderfs" [pid 5876] mkdir("./59", 0777 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] unlink("./57/binderfs" [pid 6178] symlink("/dev/binderfs", "./binderfs" [pid 5874] unlink("./54/binderfs" [pid 6178] <... symlink resumed>) = 0 [pid 6177] <... symlink resumed>) = 0 [pid 5876] <... mkdir resumed>) = 0 [pid 5874] <... unlink resumed>) = 0 executing program executing program [pid 5873] <... unlink resumed>) = 0 [pid 6178] write(1, "executing program\n", 18 [pid 6177] write(1, "executing program\n", 18 [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5874] umount2("./54/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] umount2("./57/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6178] <... write resumed>) = 18 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6178] perf_event_open( [pid 5874] newfstatat(AT_FDCWD, "./54/cgroup.net", [pid 6178] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6177] <... write resumed>) = 18 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] unlink("./54/cgroup.net" [pid 6177] perf_event_open( [pid 5873] newfstatat(AT_FDCWD, "./57/cgroup.net", [pid 6178] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5874] <... unlink resumed>) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6178] <... bpf resumed>) = 4 [pid 6178] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5874] umount2("./54/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6177] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5873] unlink("./57/cgroup.net"./strace-static-x86_64: Process 6179 attached [pid 6178] <... bpf resumed>) = 5 [pid 6177] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 61 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... unlink resumed>) = 0 [pid 6179] set_robust_list(0x5555947fb660, 24 [pid 6178] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5874] newfstatat(AT_FDCWD, "./54/cgroup.cpu", [pid 5873] umount2("./57/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6179] <... set_robust_list resumed>) = 0 [pid 6178] <... bpf resumed>) = 6 [pid 6177] <... bpf resumed>) = 4 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6179] chdir("./59" [pid 6178] perf_event_open( [pid 6179] <... chdir resumed>) = 0 [pid 6178] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6177] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5874] unlink("./54/cgroup.cpu" [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6179] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6178] close(3 [pid 5874] <... unlink resumed>) = 0 [pid 5873] newfstatat(AT_FDCWD, "./57/cgroup.cpu", [pid 6179] <... prctl resumed>) = 0 [pid 6178] <... close resumed>) = 0 [pid 5874] umount2("./54/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6179] setpgid(0, 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6179] <... setpgid resumed>) = 0 [pid 6178] close(4 [pid 5874] newfstatat(AT_FDCWD, "./54/cgroup", [pid 5873] unlink("./57/cgroup.cpu" [pid 6179] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 6178] <... close resumed>) = 0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... unlink resumed>) = 0 [pid 6179] <... symlink resumed>) = 0 [pid 6177] <... bpf resumed>) = 5 [pid 5873] umount2("./57/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5873] newfstatat(AT_FDCWD, "./57/cgroup", [pid 6177] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6177] <... bpf resumed>) = 6 [pid 5873] unlink("./57/cgroup" [pid 6177] perf_event_open( [pid 5873] <... unlink resumed>) = 0 [pid 6179] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 6178] close(5 [pid 5874] unlink("./54/cgroup" [pid 6178] <... close resumed>) = 0 [pid 6177] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5874] <... unlink resumed>) = 0 [pid 5873] getdents64(3, [pid 6179] <... symlink resumed>) = 0 [pid 6178] close(6 [pid 6179] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5874] getdents64(3, [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6177] close(3 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5873] close(3 [pid 6179] <... symlink resumed>) = 0 [pid 5874] close(3 [pid 6178] <... close resumed>) = 0 [pid 5874] <... close resumed>) = 0 [pid 6178] close(7 [pid 5874] rmdir("./54" [pid 6178] <... close resumed>) = 0 [pid 5874] <... rmdir resumed>) = 0 [pid 6178] close(8) = -1 EBADF (Bad file descriptor) [pid 5874] mkdir("./55", 0777 [pid 6178] close(9 [pid 5874] <... mkdir resumed>) = 0 [pid 6179] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6178] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... close resumed>) = 0 [pid 6178] close(10 [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5873] rmdir("./57" [pid 6179] <... openat resumed>) = 3 [pid 6178] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 6180 attached [pid 6178] close(11 [pid 6180] set_robust_list(0x5555947fb660, 24 [pid 6179] write(3, "1000", 4 [pid 6178] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] mkdir("./58", 0777 [pid 6180] <... set_robust_list resumed>) = 0 [pid 6179] <... write resumed>) = 4 [pid 6178] close(12 [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 57 [pid 6179] close(3 [pid 6178] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... mkdir resumed>) = 0 [pid 6179] <... close resumed>) = 0 [pid 6179] read(200, [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6180] chdir("./55" [pid 6179] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6178] close(13 [pid 6179] symlink("/dev/binderfs", "./binderfs" [pid 6177] <... close resumed>) = 0 [pid 6179] <... symlink resumed>) = 0 [pid 6178] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6177] close(4./strace-static-x86_64: Process 6181 attached [pid 6180] <... chdir resumed>) = 0 [pid 6179] write(1, "executing program\n", 18 [pid 6178] close(14 [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 60 [pid 6180] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6178] <... close resumed>) = -1 EBADF (Bad file descriptor) executing program [pid 6180] <... prctl resumed>) = 0 [pid 6179] <... write resumed>) = 18 [pid 6178] close(15 [pid 6177] <... close resumed>) = 0 [pid 6181] set_robust_list(0x5555947fb660, 24 [pid 6180] setpgid(0, 0 [pid 6179] perf_event_open( [pid 6178] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6177] close(5 [pid 6180] <... setpgid resumed>) = 0 [pid 6178] close(16 [pid 6180] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 6179] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6181] <... set_robust_list resumed>) = 0 [pid 6180] <... symlink resumed>) = 0 [pid 6178] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6177] <... close resumed>) = 0 [pid 6181] chdir("./58" [pid 6180] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 6179] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6178] close(17 [pid 6177] close(6 [pid 6181] <... chdir resumed>) = 0 [pid 6180] <... symlink resumed>) = 0 [pid 6179] <... bpf resumed>) = 4 [pid 6178] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6181] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6180] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 6179] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6178] close(18 [pid 6181] <... prctl resumed>) = 0 [pid 6180] <... symlink resumed>) = 0 [pid 6178] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6177] <... close resumed>) = 0 [pid 6180] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6179] <... bpf resumed>) = 5 [pid 6178] close(19 [pid 6181] setpgid(0, 0 [pid 6180] <... openat resumed>) = 3 [pid 6179] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6178] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6177] close(7 [pid 6181] <... setpgid resumed>) = 0 [pid 6180] write(3, "1000", 4 [pid 6178] close(20 [pid 6177] <... close resumed>) = 0 [pid 6181] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 6178] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6181] <... symlink resumed>) = 0 [pid 6180] <... write resumed>) = 4 [pid 6179] <... bpf resumed>) = 6 [pid 6178] close(21 [pid 6177] close(8 [pid 6181] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 6180] close(3 [pid 6178] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6179] perf_event_open( [pid 6177] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6177] close(9 [pid 6180] <... close resumed>) = 0 [pid 6179] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6178] close(22 [pid 6181] <... symlink resumed>) = 0 executing program executing program [pid 6180] read(200, [pid 6178] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6177] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6181] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 6180] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6179] close(3 [pid 6178] close(23 [pid 6177] close(10 [pid 6181] <... symlink resumed>) = 0 [pid 6180] symlink("/dev/binderfs", "./binderfs" [pid 6178] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6177] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6181] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6177] close(11 [pid 6181] <... openat resumed>) = 3 [pid 6177] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6181] write(3, "1000", 4 [pid 6177] close(12 [pid 6181] <... write resumed>) = 4 [pid 6177] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6181] close(3 [pid 6177] close(13 [pid 6181] <... close resumed>) = 0 [pid 6177] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6181] read(200, [pid 6177] close(14 [pid 6181] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6181] symlink("/dev/binderfs", "./binderfs" [pid 6177] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6181] <... symlink resumed>) = 0 [pid 6178] close(24 [pid 6180] <... symlink resumed>) = 0 [pid 6177] close(15 [pid 6178] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6177] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6180] write(1, "executing program\n", 18 [pid 6181] write(1, "executing program\n", 18 [pid 6178] close(25 [pid 6177] close(16 [pid 6181] <... write resumed>) = 18 [pid 6178] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6177] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6180] <... write resumed>) = 18 [pid 6181] perf_event_open( [pid 6178] close(26 [pid 6177] close(17 [pid 6180] perf_event_open( [pid 6178] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6177] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6178] close(27) = -1 EBADF (Bad file descriptor) [pid 6178] close(28 [pid 6181] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6180] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6179] <... close resumed>) = 0 [pid 6177] close(18 [pid 6181] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6180] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6179] close(4 [pid 6178] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6177] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6181] <... bpf resumed>) = 4 [pid 6180] <... bpf resumed>) = 4 [pid 6179] <... close resumed>) = 0 [pid 6178] close(29 [pid 6177] close(19 [pid 6181] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6180] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6179] close(5 [pid 6178] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6177] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6177] close(20) = -1 EBADF (Bad file descriptor) [pid 6177] close(21 [pid 6181] <... bpf resumed>) = 5 [pid 6180] <... bpf resumed>) = 5 [pid 6179] <... close resumed>) = 0 [pid 6178] exit_group(0 [pid 6180] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6181] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6179] close(6 [pid 6178] <... exit_group resumed>) = ? [pid 6177] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6181] <... bpf resumed>) = 6 [pid 6180] <... bpf resumed>) = 6 [pid 6181] perf_event_open( [pid 6180] perf_event_open( [pid 6181] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6179] <... close resumed>) = 0 [pid 6177] close(22 [pid 6179] close(7 [pid 6181] close(3 [pid 6180] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6178] +++ exited with 0 +++ [pid 6177] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6181] <... close resumed>) = 0 [pid 6180] close(3 [pid 6179] <... close resumed>) = 0 [pid 6177] close(23 [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=58, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6181] close(4 [pid 6179] close(8 [pid 6177] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6177] close(24 [pid 6179] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6177] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6181] <... close resumed>) = 0 [pid 6179] close(9) = -1 EBADF (Bad file descriptor) [pid 6177] close(25 [pid 6181] close(5 [pid 6179] close(10 [pid 6177] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6179] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6177] close(26 [pid 5875] umount2("./56", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6181] <... close resumed>) = 0 [pid 6179] close(11 [pid 6177] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6179] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6177] close(27 [pid 6181] close(6 [pid 6179] close(12 [pid 6177] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6179] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6181] <... close resumed>) = 0 [pid 6179] close(13 [pid 6177] close(28 [pid 5875] openat(AT_FDCWD, "./56", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6181] close(7 [pid 6179] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6177] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6179] close(14 [pid 6177] close(29 [pid 5875] <... openat resumed>) = 3 [pid 6179] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6179] close(15 [pid 6177] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6179] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6177] exit_group(0 [pid 5875] newfstatat(3, "", [pid 6181] <... close resumed>) = 0 [pid 6179] close(16 [pid 6177] <... exit_group resumed>) = ? [pid 6181] close(8 [pid 6179] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6181] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6179] close(17 [pid 5875] getdents64(3, [pid 6181] close(9 [pid 6179] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6181] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6179] close(18) = -1 EBADF (Bad file descriptor) [pid 6181] close(10 [pid 5875] umount2("./56/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6181] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6179] close(19 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6181] close(11 [pid 6179] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6177] +++ exited with 0 +++ [pid 5875] newfstatat(AT_FDCWD, "./56/binderfs", [pid 6181] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6179] close(20 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6181] close(12 [pid 6179] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=60, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5875] unlink("./56/binderfs" [pid 6181] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6179] close(21 [pid 5877] restart_syscall(<... resuming interrupted clone ...> [pid 6181] close(13 [pid 6179] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6179] close(22) = -1 EBADF (Bad file descriptor) [pid 6179] close(23 [pid 6181] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6179] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 [pid 6181] close(14 [pid 6179] close(24 [pid 6181] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6179] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./56/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6181] close(15 [pid 6179] close(25 [pid 6181] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6179] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6181] close(16 [pid 6179] close(26 [pid 5875] newfstatat(AT_FDCWD, "./56/cgroup.net", [pid 6181] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6179] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6181] close(17 [pid 6179] close(27 [pid 6181] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6179] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6179] close(28) = -1 EBADF (Bad file descriptor) [pid 6179] close(29) = -1 EBADF (Bad file descriptor) [pid 6181] close(18 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6181] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] unlink("./56/cgroup.net" [pid 6181] close(19 [pid 6179] exit_group(0 [pid 6181] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6181] close(20 [pid 6179] <... exit_group resumed>) = ? [pid 6181] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 [pid 6181] close(21 [pid 5875] umount2("./56/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6181] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6180] <... close resumed>) = 0 [pid 6179] +++ exited with 0 +++ [pid 5877] <... restart_syscall resumed>) = 0 [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=61, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] umount2("./58", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5876] umount2("./59", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6181] close(22 [pid 6180] close(4 [pid 5877] openat(AT_FDCWD, "./58", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6181] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6180] <... close resumed>) = 0 [pid 5877] <... openat resumed>) = 3 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] newfstatat(AT_FDCWD, "./56/cgroup.cpu", [pid 6181] close(23 [pid 6180] close(5 [pid 5877] newfstatat(3, "", [pid 5876] openat(AT_FDCWD, "./59", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6181] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6181] close(24 [pid 6180] <... close resumed>) = 0 [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5876] <... openat resumed>) = 3 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6181] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6180] close(6 [pid 5877] getdents64(3, [pid 6181] close(25 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5876] newfstatat(3, "", [pid 5875] unlink("./56/cgroup.cpu" [pid 5877] umount2("./58/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5875] <... unlink resumed>) = 0 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] getdents64(3, [pid 5875] umount2("./56/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6181] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6180] <... close resumed>) = 0 [pid 5877] newfstatat(AT_FDCWD, "./58/binderfs", [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6181] close(26 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6181] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6180] close(7 [pid 5877] unlink("./58/binderfs" [pid 5876] umount2("./59/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] newfstatat(AT_FDCWD, "./56/cgroup", [pid 6181] close(27 [pid 6180] <... close resumed>) = 0 [pid 6181] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6180] close(8 [pid 6181] close(28 [pid 6180] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6181] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6180] close(9 [pid 5877] umount2("./58/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] newfstatat(AT_FDCWD, "./59/binderfs", [pid 5875] unlink("./56/cgroup" [pid 6181] close(29 [pid 6180] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6181] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6180] close(10 [pid 5875] <... unlink resumed>) = 0 [pid 5877] newfstatat(AT_FDCWD, "./58/cgroup.net", [pid 5876] unlink("./59/binderfs" [pid 6181] exit_group(0 [pid 6180] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6181] <... exit_group resumed>) = ? [pid 6180] close(11 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6180] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 5875] getdents64(3, [pid 6180] close(12) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./58/cgroup.net" [pid 5876] umount2("./59/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6181] +++ exited with 0 +++ [pid 6180] close(13 [pid 5877] <... unlink resumed>) = 0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] close(3 [pid 6180] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./58/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] newfstatat(AT_FDCWD, "./59/cgroup.net", [pid 5875] <... close resumed>) = 0 [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=60, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 6180] close(14 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] rmdir("./56" [pid 5873] restart_syscall(<... resuming interrupted clone ...> [pid 6180] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./58/cgroup.cpu", [pid 6180] close(15 [pid 5876] unlink("./59/cgroup.net" [pid 5873] <... restart_syscall resumed>) = 0 [pid 6180] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... rmdir resumed>) = 0 [pid 6180] close(16 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6180] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6180] close(17 [pid 5876] <... unlink resumed>) = 0 [pid 6180] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6180] close(18) = -1 EBADF (Bad file descriptor) [pid 5875] mkdir("./57", 0777 [pid 6180] close(19 [pid 5877] unlink("./58/cgroup.cpu" [pid 5876] umount2("./59/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6180] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6180] close(20 [pid 5875] <... mkdir resumed>) = 0 [pid 6180] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6180] close(21) = -1 EBADF (Bad file descriptor) [pid 6180] close(22) = -1 EBADF (Bad file descriptor) [pid 6180] close(23) = -1 EBADF (Bad file descriptor) [pid 6180] close(24) = -1 EBADF (Bad file descriptor) [pid 6180] close(25) = -1 EBADF (Bad file descriptor) [pid 6180] close(26) = -1 EBADF (Bad file descriptor) [pid 6180] close(27) = -1 EBADF (Bad file descriptor) [pid 6180] close(28) = -1 EBADF (Bad file descriptor) [pid 6180] close(29) = -1 EBADF (Bad file descriptor) [pid 6180] exit_group(0) = ? [pid 5877] <... unlink resumed>) = 0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5873] umount2("./58", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] newfstatat(AT_FDCWD, "./59/cgroup.cpu", [pid 5877] umount2("./58/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] unlink("./59/cgroup.cpu" [pid 5873] openat(AT_FDCWD, "./58", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5877] newfstatat(AT_FDCWD, "./58/cgroup", [pid 5876] <... unlink resumed>) = 0 [pid 5873] <... openat resumed>) = 3 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] umount2("./59/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] newfstatat(3, "", [pid 5877] unlink("./58/cgroup" [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] <... unlink resumed>) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5877] getdents64(3, [pid 5873] getdents64(3, [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5877] close(3) = 0 [pid 5873] umount2("./58/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5877] rmdir("./58" [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 6182 attached [pid 6180] +++ exited with 0 +++ [pid 5876] newfstatat(AT_FDCWD, "./59/cgroup", [pid 5873] newfstatat(AT_FDCWD, "./58/binderfs", [pid 5877] mkdir("./59", 0777 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 59 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6182] set_robust_list(0x5555947fb660, 24 [pid 5877] <... mkdir resumed>) = 0 [pid 5876] unlink("./59/cgroup" [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=57, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5873] unlink("./58/binderfs" [pid 6182] <... set_robust_list resumed>) = 0 [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5873] <... unlink resumed>) = 0 [pid 6182] chdir("./57" [pid 5876] <... unlink resumed>) = 0 [pid 5876] getdents64(3, 0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5876] close(3) = 0 [pid 5876] rmdir("./59"./strace-static-x86_64: Process 6183 attached [pid 6182] <... chdir resumed>) = 0 [pid 5876] <... rmdir resumed>) = 0 [pid 5873] umount2("./58/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6183] set_robust_list(0x5555947fb660, 24 [pid 6182] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 61 [pid 5876] mkdir("./60", 0777 [pid 5874] umount2("./55", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6183] <... set_robust_list resumed>) = 0 [pid 6182] <... prctl resumed>) = 0 [pid 5876] <... mkdir resumed>) = 0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6183] chdir("./59" [pid 6182] setpgid(0, 0 [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] newfstatat(AT_FDCWD, "./58/cgroup.net", [pid 6183] <... chdir resumed>) = 0 [pid 6182] <... setpgid resumed>) = 0 [pid 5874] openat(AT_FDCWD, "./55", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 6184 attached [pid 6183] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6182] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5874] <... openat resumed>) = 3 [pid 5873] unlink("./58/cgroup.net" [pid 6184] set_robust_list(0x5555947fb660, 24 [pid 6183] <... prctl resumed>) = 0 [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 62 [pid 6184] <... set_robust_list resumed>) = 0 [pid 6183] setpgid(0, 0 [pid 6182] <... symlink resumed>) = 0 [pid 5874] newfstatat(3, "", [pid 5873] <... unlink resumed>) = 0 [pid 6184] chdir("./60" [pid 6183] <... setpgid resumed>) = 0 [pid 6182] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5873] umount2("./58/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6184] <... chdir resumed>) = 0 [pid 6184] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6183] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 6184] <... prctl resumed>) = 0 [pid 6183] <... symlink resumed>) = 0 [pid 6182] <... symlink resumed>) = 0 [pid 5874] getdents64(3, [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6184] setpgid(0, 0 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5873] newfstatat(AT_FDCWD, "./58/cgroup.cpu", [pid 6184] <... setpgid resumed>) = 0 [pid 6183] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 6182] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 6184] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5874] umount2("./55/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6184] <... symlink resumed>) = 0 [pid 6183] <... symlink resumed>) = 0 [pid 6182] <... symlink resumed>) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] unlink("./58/cgroup.cpu" [pid 5874] newfstatat(AT_FDCWD, "./55/binderfs", [pid 6184] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 6183] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 6184] <... symlink resumed>) = 0 [pid 6182] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... unlink resumed>) = 0 [pid 6184] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 6183] <... symlink resumed>) = 0 [pid 6182] <... openat resumed>) = 3 [pid 5874] unlink("./55/binderfs" [pid 6184] <... symlink resumed>) = 0 [pid 6183] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5873] umount2("./58/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6182] write(3, "1000", 4 [pid 5874] <... unlink resumed>) = 0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6182] <... write resumed>) = 4 [pid 5873] newfstatat(AT_FDCWD, "./58/cgroup", [pid 6184] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6182] close(3 [pid 5874] umount2("./55/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6182] <... close resumed>) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6182] read(200, [pid 5874] newfstatat(AT_FDCWD, "./55/cgroup.net", [pid 5873] unlink("./58/cgroup" [pid 6184] <... openat resumed>) = 3 [pid 6182] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6182] symlink("/dev/binderfs", "./binderfs" [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... unlink resumed>) = 0 [pid 6184] write(3, "1000", 4 [pid 6182] <... symlink resumed>) = 0 [pid 6184] <... write resumed>) = 4 [pid 6184] close(3) = 0 [pid 6183] <... openat resumed>) = 3 executing program [pid 6184] read(200, [pid 6182] write(1, "executing program\n", 18 [pid 5874] unlink("./55/cgroup.net" [pid 5873] getdents64(3, [pid 6184] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6183] write(3, "1000", 4 [pid 6182] <... write resumed>) = 18 [pid 6184] symlink("/dev/binderfs", "./binderfs" [pid 5874] <... unlink resumed>) = 0 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6184] <... symlink resumed>) = 0 [pid 6183] <... write resumed>) = 4 executing program [pid 6182] perf_event_open( [pid 5874] umount2("./55/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] close(3 [pid 6184] write(1, "executing program\n", 18 [pid 6183] close(3 [pid 6184] <... write resumed>) = 18 [pid 6183] <... close resumed>) = 0 [pid 5873] <... close resumed>) = 0 [pid 6184] perf_event_open( [pid 6183] read(200, [pid 6184] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6183] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] rmdir("./58" [pid 6182] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6183] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5874] newfstatat(AT_FDCWD, "./55/cgroup.cpu", [pid 5873] <... rmdir resumed>) = 0 [pid 6182] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] mkdir("./59", 0777 [pid 6182] <... bpf resumed>) = 4 [pid 5874] unlink("./55/cgroup.cpu" [pid 6184] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80executing program [pid 6183] write(1, "executing program\n", 18 [pid 6184] <... bpf resumed>) = 4 [pid 6183] <... write resumed>) = 18 [pid 5874] <... unlink resumed>) = 0 [pid 5873] <... mkdir resumed>) = 0 [pid 6184] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6183] perf_event_open( [pid 6182] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6184] <... bpf resumed>) = 5 [pid 6182] <... bpf resumed>) = 5 [pid 5874] umount2("./55/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6183] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6182] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24./strace-static-x86_64: Process 6185 attached [pid 6184] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6183] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 61 [pid 6182] <... bpf resumed>) = 6 [pid 6183] <... bpf resumed>) = 4 [pid 6184] <... bpf resumed>) = 6 [pid 5874] newfstatat(AT_FDCWD, "./55/cgroup", [pid 6185] set_robust_list(0x5555947fb660, 24) = 0 [pid 6184] perf_event_open( [pid 6183] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6182] perf_event_open( [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6185] chdir("./59" [pid 6184] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6182] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6185] <... chdir resumed>) = 0 [pid 6184] close(3 [pid 6182] close(3 [pid 5874] unlink("./55/cgroup" [pid 6185] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6184] <... close resumed>) = 0 [pid 6185] <... prctl resumed>) = 0 [pid 6183] <... bpf resumed>) = 5 [pid 5874] <... unlink resumed>) = 0 [pid 6185] setpgid(0, 0 [pid 6184] close(4 [pid 6183] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6182] <... close resumed>) = 0 [pid 5874] getdents64(3, [pid 6185] <... setpgid resumed>) = 0 [pid 6184] <... close resumed>) = 0 [pid 6183] <... bpf resumed>) = 6 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6182] close(4 [pid 6185] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 6184] close(5 [pid 6183] perf_event_open( [pid 6182] <... close resumed>) = 0 [pid 6185] <... symlink resumed>) = 0 [pid 6184] <... close resumed>) = 0 [pid 6183] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6182] close(5 [pid 5874] close(3 [pid 6185] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 6184] close(6 [pid 6182] <... close resumed>) = 0 [pid 5874] <... close resumed>) = 0 [pid 6185] <... symlink resumed>) = 0 [pid 6184] <... close resumed>) = 0 [pid 6183] close(3 [pid 6185] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 6184] close(7 [pid 6182] close(6 [pid 5874] rmdir("./55" [pid 6184] <... close resumed>) = 0 [pid 5874] <... rmdir resumed>) = 0 [pid 6184] close(8 [pid 6185] <... symlink resumed>) = 0 [pid 6184] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6182] <... close resumed>) = 0 [pid 6184] close(9 [pid 5874] mkdir("./56", 0777 [pid 6184] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6185] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6184] close(10 [pid 6182] close(7 [pid 5874] <... mkdir resumed>) = 0 [pid 6185] <... openat resumed>) = 3 [pid 6184] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6185] write(3, "1000", 4 [pid 6182] <... close resumed>) = 0 [pid 6185] <... write resumed>) = 4 [pid 6185] close(3) = 0 [pid 6184] close(11 [pid 6182] close(8 [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6185] read(200, [pid 6184] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6182] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6185] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6185] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6185] write(1, "executing program\n", 18./strace-static-x86_64: Process 6186 attached executing program [pid 6184] close(12 [pid 6183] <... close resumed>) = 0 [pid 6182] close(9 [pid 6185] <... write resumed>) = 18 [pid 6183] close(4 [pid 6182] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6186] set_robust_list(0x5555947fb660, 24 [pid 6184] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6182] close(10 [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 58 [pid 6186] <... set_robust_list resumed>) = 0 [pid 6185] perf_event_open( [pid 6182] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6186] chdir("./56" [pid 6184] close(13 [pid 6183] <... close resumed>) = 0 [pid 6182] close(11 [pid 6186] <... chdir resumed>) = 0 [pid 6185] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6184] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6183] close(5 [pid 6182] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6186] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6185] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6184] close(14 [pid 6183] <... close resumed>) = 0 [pid 6182] close(12 [pid 6186] <... prctl resumed>) = 0 [pid 6185] <... bpf resumed>) = 4 [pid 6184] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6183] close(6 [pid 6182] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6186] setpgid(0, 0 [pid 6185] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6184] close(15 [pid 6182] close(13 [pid 6186] <... setpgid resumed>) = 0 [pid 6184] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6182] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6186] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 6185] <... bpf resumed>) = 5 [pid 6186] <... symlink resumed>) = 0 [pid 6184] close(16 [pid 6183] <... close resumed>) = 0 [pid 6182] close(14 [pid 6186] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 6185] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6184] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6183] close(7 [pid 6182] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6186] <... symlink resumed>) = 0 [pid 6184] close(17 [pid 6186] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 6185] <... bpf resumed>) = 6 [pid 6184] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6183] <... close resumed>) = 0 [pid 6182] close(15 [pid 6186] <... symlink resumed>) = 0 [pid 6185] perf_event_open( [pid 6184] close(18 [pid 6183] close(8 [pid 6182] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6186] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6185] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6184] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6183] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6182] close(16 [pid 6183] close(9 [pid 6182] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6183] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6182] close(17 [pid 6183] close(10 [pid 6182] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6185] close(3 [pid 6183] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6182] close(18 [pid 6184] close(19 [pid 6183] close(11 [pid 6182] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6183] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6182] close(19 [pid 6186] <... openat resumed>) = 3 [pid 6183] close(12 [pid 6182] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6183] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6182] close(20 [pid 6183] close(13 [pid 6182] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6183] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6182] close(21 [pid 6183] close(14 [pid 6182] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6183] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6182] close(22 [pid 6186] write(3, "1000", 4 [pid 6183] close(15 [pid 6182] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6184] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6183] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6182] close(23 [pid 6184] close(20 [pid 6183] close(16 [pid 6182] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6186] <... write resumed>) = 4 [pid 6184] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6183] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6182] close(24 [pid 6186] close(3 [pid 6184] close(21 [pid 6183] close(17 [pid 6182] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6186] <... close resumed>) = 0 [pid 6184] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6183] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6182] close(25 [pid 6184] close(22 [pid 6183] close(18 [pid 6182] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6186] read(200, [pid 6184] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6183] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6182] close(26 [pid 6186] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6184] close(23 [pid 6183] close(19 [pid 6182] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6186] symlink("/dev/binderfs", "./binderfs" [pid 6184] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6183] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6182] close(27 [pid 6184] close(24 [pid 6183] close(20 [pid 6182] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6184] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6183] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6182] close(28 [pid 6184] close(25 [pid 6183] close(21 [pid 6182] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6186] <... symlink resumed>) = 0 [pid 6184] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6183] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6186] write(1, "executing program\n", 18executing program [pid 6184] close(26 [pid 6182] close(29 [pid 6186] <... write resumed>) = 18 [pid 6184] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6186] perf_event_open( [pid 6184] close(27) = -1 EBADF (Bad file descriptor) [pid 6184] close(28) = -1 EBADF (Bad file descriptor) [pid 6184] close(29) = -1 EBADF (Bad file descriptor) [pid 6184] exit_group(0 [pid 6183] close(22 [pid 6182] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6184] <... exit_group resumed>) = ? [pid 6183] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6182] exit_group(0 [pid 6183] close(23 [pid 6182] <... exit_group resumed>) = ? [pid 6184] +++ exited with 0 +++ [pid 6183] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6182] +++ exited with 0 +++ [pid 6183] close(24) = -1 EBADF (Bad file descriptor) [pid 6183] close(25 [pid 6185] <... close resumed>) = 0 [pid 6183] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6183] close(26) = -1 EBADF (Bad file descriptor) [pid 6183] close(27) = -1 EBADF (Bad file descriptor) [pid 6183] close(28) = -1 EBADF (Bad file descriptor) [pid 6186] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6183] close(29 [pid 6185] close(4 [pid 6183] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6183] exit_group(0 [pid 6185] <... close resumed>) = 0 [pid 6183] <... exit_group resumed>) = ? [pid 6186] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6185] close(5 [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=62, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5876] restart_syscall(<... resuming interrupted clone ...> [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=59, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6186] <... bpf resumed>) = 4 [pid 6185] <... close resumed>) = 0 [pid 6183] +++ exited with 0 +++ [pid 5875] restart_syscall(<... resuming interrupted clone ...> [pid 6186] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6185] close(6 [pid 5876] <... restart_syscall resumed>) = 0 [pid 5875] <... restart_syscall resumed>) = 0 [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=61, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5877] restart_syscall(<... resuming interrupted clone ...> [pid 6186] <... bpf resumed>) = 5 [pid 5875] umount2("./57", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5877] <... restart_syscall resumed>) = 0 [pid 6186] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5876] umount2("./60", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] umount2("./59", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] openat(AT_FDCWD, "./57", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] openat(AT_FDCWD, "./60", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5877] openat(AT_FDCWD, "./59", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5876] <... openat resumed>) = 3 [pid 6185] <... close resumed>) = 0 [pid 6186] <... bpf resumed>) = 6 [pid 5876] newfstatat(3, "", [pid 6185] close(7 [pid 6186] perf_event_open( [pid 5877] newfstatat(3, "", [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5875] <... openat resumed>) = 3 [pid 6185] <... close resumed>) = 0 [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6186] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6185] close(8 [pid 5877] getdents64(3, [pid 5876] getdents64(3, [pid 5875] newfstatat(3, "", [pid 6185] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6186] close(3 [pid 6185] close(9 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6185] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./60/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] getdents64(3, [pid 6185] close(10 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6185] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./59/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] newfstatat(AT_FDCWD, "./60/binderfs", [pid 5875] umount2("./57/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6185] close(11 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] newfstatat(AT_FDCWD, "./59/binderfs", [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6185] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] unlink("./60/binderfs" [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6185] close(12 [pid 5877] unlink("./59/binderfs") = 0 [pid 5876] <... unlink resumed>) = 0 [pid 5875] newfstatat(AT_FDCWD, "./57/binderfs", [pid 5877] umount2("./59/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6185] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] umount2("./60/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5877] newfstatat(AT_FDCWD, "./59/cgroup.net", [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6185] close(13 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6185] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(AT_FDCWD, "./60/cgroup.net", [pid 5875] unlink("./57/binderfs" [pid 6185] close(14 [pid 5877] unlink("./59/cgroup.net" [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6185] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 5875] <... unlink resumed>) = 0 [pid 6185] close(15 [pid 5877] umount2("./59/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] unlink("./60/cgroup.net" [pid 5875] umount2("./57/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6185] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6185] close(16 [pid 5877] newfstatat(AT_FDCWD, "./59/cgroup.cpu", [pid 5876] <... unlink resumed>) = 0 [pid 5875] newfstatat(AT_FDCWD, "./57/cgroup.net", [pid 6185] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6185] close(17 [pid 5877] unlink("./59/cgroup.cpu" [pid 5876] umount2("./60/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6185] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6185] close(18 [pid 5877] <... unlink resumed>) = 0 [pid 5877] umount2("./59/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5877] newfstatat(AT_FDCWD, "./59/cgroup", [pid 6185] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] newfstatat(AT_FDCWD, "./60/cgroup.cpu", [pid 5875] unlink("./57/cgroup.net" [pid 6185] close(19 [pid 5877] unlink("./59/cgroup") = 0 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6185] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 [pid 5876] unlink("./60/cgroup.cpu" [pid 6185] close(20 [pid 5875] umount2("./57/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6185] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6185] close(21 [pid 5877] getdents64(3, [pid 6185] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6185] close(22 [pid 5877] close(3 [pid 6185] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... close resumed>) = 0 [pid 5876] <... unlink resumed>) = 0 [pid 5875] newfstatat(AT_FDCWD, "./57/cgroup.cpu", [pid 6185] close(23 [pid 5877] rmdir("./59" [pid 5876] umount2("./60/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6185] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... rmdir resumed>) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5877] mkdir("./60", 0777 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6185] close(24 [pid 5877] <... mkdir resumed>) = 0 [pid 5875] unlink("./57/cgroup.cpu" [pid 6185] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5876] newfstatat(AT_FDCWD, "./60/cgroup", [pid 5875] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 6187 attached [pid 6185] close(25 [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 62 [pid 6187] set_robust_list(0x5555947fb660, 24 [pid 6186] <... close resumed>) = 0 [pid 6185] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] umount2("./57/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6187] <... set_robust_list resumed>) = 0 [pid 6186] close(4 [pid 6185] close(26 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] unlink("./60/cgroup" [pid 6187] chdir("./60" [pid 6186] <... close resumed>) = 0 [pid 6185] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(AT_FDCWD, "./57/cgroup", [pid 6187] <... chdir resumed>) = 0 [pid 6186] close(5 [pid 6185] close(27 [pid 5876] <... unlink resumed>) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6187] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6185] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] unlink("./57/cgroup" [pid 6187] <... prctl resumed>) = 0 [pid 6185] close(28 [pid 5875] <... unlink resumed>) = 0 [pid 6187] setpgid(0, 0 [pid 6186] <... close resumed>) = 0 [pid 6185] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] getdents64(3, [pid 5875] getdents64(3, [pid 6187] <... setpgid resumed>) = 0 [pid 6186] close(6 [pid 6185] close(29 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6187] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5876] close(3 [pid 6185] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... close resumed>) = 0 [pid 5875] close(3 [pid 6185] exit_group(0 [pid 6187] <... symlink resumed>) = 0 [pid 6185] <... exit_group resumed>) = ? [pid 5875] <... close resumed>) = 0 [pid 5875] rmdir("./57" [pid 6187] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 6186] <... close resumed>) = 0 [pid 5876] rmdir("./60" [pid 5875] <... rmdir resumed>) = 0 [pid 6187] <... symlink resumed>) = 0 [pid 6185] +++ exited with 0 +++ [pid 6186] close(7 [pid 5876] <... rmdir resumed>) = 0 [pid 5875] mkdir("./58", 0777 [pid 6186] <... close resumed>) = 0 [pid 5875] <... mkdir resumed>) = 0 [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=61, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6187] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 6186] close(8 [pid 5876] mkdir("./61", 0777 [pid 5873] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 6188 attached [pid 6187] <... symlink resumed>) = 0 [pid 6186] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... mkdir resumed>) = 0 [pid 6187] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6186] close(9 [pid 6188] set_robust_list(0x5555947fb660, 24 [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 60 [pid 5873] <... restart_syscall resumed>) = 0 [pid 6188] <... set_robust_list resumed>) = 0 [pid 6187] <... openat resumed>) = 3 [pid 6186] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6188] chdir("./58") = 0 [pid 6187] write(3, "1000", 4 [pid 6186] close(10 [pid 6187] <... write resumed>) = 4 [pid 6186] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6187] close(3 [pid 6186] close(11) = -1 EBADF (Bad file descriptor) [pid 6188] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5873] umount2("./59", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6188] <... prctl resumed>) = 0 [pid 6187] <... close resumed>) = 0 [pid 6186] close(12 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 6189 attached [pid 6188] setpgid(0, 0 [pid 6187] read(200, [pid 6186] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] openat(AT_FDCWD, "./59", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6189] set_robust_list(0x5555947fb660, 24 [pid 6188] <... setpgid resumed>) = 0 [pid 6187] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6186] close(13 [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 63 [pid 5873] <... openat resumed>) = 3 [pid 6189] <... set_robust_list resumed>) = 0 [pid 6188] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 6187] symlink("/dev/binderfs", "./binderfs" [pid 6186] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] newfstatat(3, "", [pid 6188] <... symlink resumed>) = 0 [pid 6187] <... symlink resumed>) = 0 [pid 6186] close(14 [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6188] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5873] getdents64(3, [pid 6188] <... symlink resumed>) = 0 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6188] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5873] umount2("./59/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6188] <... symlink resumed>) = 0 [pid 6189] chdir("./61" [pid 6187] write(1, "executing program\n", 18 [pid 6186] <... close resumed>) = -1 EBADF (Bad file descriptor) executing program [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6188] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6187] <... write resumed>) = 18 [pid 6186] close(15 [pid 5873] newfstatat(AT_FDCWD, "./59/binderfs", [pid 6188] <... openat resumed>) = 3 [pid 6187] perf_event_open( [pid 6186] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6189] <... chdir resumed>) = 0 [pid 6188] write(3, "1000", 4 [pid 6187] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6186] close(16 [pid 6189] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6186] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6186] close(17 [pid 6189] <... prctl resumed>) = 0 [pid 6186] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6189] setpgid(0, 0 [pid 6188] <... write resumed>) = 4 [pid 6187] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 5873] unlink("./59/binderfs" [pid 6189] <... setpgid resumed>) = 0 [pid 6188] close(3 [pid 6187] <... bpf resumed>) = 4 [pid 6186] close(18 [pid 6188] <... close resumed>) = 0 [pid 5873] <... unlink resumed>) = 0 [pid 6189] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 6188] read(200, [pid 6187] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6186] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6189] <... symlink resumed>) = 0 [pid 6188] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5873] umount2("./59/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6189] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 6188] symlink("/dev/binderfs", "./binderfs" [pid 6186] close(19 [pid 6189] <... symlink resumed>) = 0 [pid 6188] <... symlink resumed>) = 0 [pid 6186] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6189] symlink("/syzcgroup/net/syz3", "./cgroup.net"executing program [pid 6187] <... bpf resumed>) = 5 [pid 6186] close(20 [pid 6189] <... symlink resumed>) = 0 [pid 6188] write(1, "executing program\n", 18 [pid 6187] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5873] newfstatat(AT_FDCWD, "./59/cgroup.net", [pid 6186] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6189] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6188] <... write resumed>) = 18 [pid 6186] close(21 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6187] <... bpf resumed>) = 6 [pid 6186] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] unlink("./59/cgroup.net" [pid 6189] <... openat resumed>) = 3 [pid 6188] perf_event_open( [pid 6187] perf_event_open( [pid 6186] close(22) = -1 EBADF (Bad file descriptor) [pid 5873] <... unlink resumed>) = 0 [pid 6189] write(3, "1000", 4 [pid 6188] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6187] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6186] close(23 [pid 6189] <... write resumed>) = 4 [pid 6188] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6187] close(3 [pid 6186] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] umount2("./59/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6189] close(3 [pid 6188] <... bpf resumed>) = 4 [pid 6187] <... close resumed>) = 0 [pid 6186] close(24 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6186] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6189] <... close resumed>) = 0 [pid 6188] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6187] close(4 [pid 6186] close(25 [pid 5873] newfstatat(AT_FDCWD, "./59/cgroup.cpu", [pid 6189] read(200, [pid 6188] <... bpf resumed>) = 5 [pid 6186] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] unlink("./59/cgroup.cpu" [pid 6189] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6189] symlink("/dev/binderfs", "./binderfs" [pid 5873] <... unlink resumed>) = 0 [pid 6187] <... close resumed>) = 0 [pid 6189] <... symlink resumed>) = 0 executing program [pid 6187] close(5 [pid 6186] close(26 [pid 5873] umount2("./59/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6189] write(1, "executing program\n", 18 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6189] <... write resumed>) = 18 [pid 5873] newfstatat(AT_FDCWD, "./59/cgroup", [pid 6189] perf_event_open( [pid 6188] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6187] <... close resumed>) = 0 [pid 6186] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6189] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6188] <... bpf resumed>) = 6 [pid 6187] close(6 [pid 6186] close(27 [pid 5873] unlink("./59/cgroup" [pid 6189] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6188] perf_event_open( [pid 6186] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... unlink resumed>) = 0 [pid 6189] <... bpf resumed>) = 4 [pid 6188] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6187] <... close resumed>) = 0 [pid 6186] close(28 [pid 5873] getdents64(3, [pid 6189] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6188] close(3 [pid 6187] close(7 [pid 6186] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6188] <... close resumed>) = 0 [pid 6187] <... close resumed>) = 0 [pid 6186] close(29 [pid 6187] close(8 [pid 6186] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6187] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6189] <... bpf resumed>) = 5 [pid 6188] close(4 [pid 6186] exit_group(0 [pid 5873] close(3 [pid 6186] <... exit_group resumed>) = ? [pid 6189] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6188] <... close resumed>) = 0 [pid 6187] close(9 [pid 5873] <... close resumed>) = 0 [pid 6189] <... bpf resumed>) = 6 [pid 6188] close(5 [pid 6187] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] rmdir("./59" [pid 6186] +++ exited with 0 +++ [pid 5873] <... rmdir resumed>) = 0 [pid 6188] <... close resumed>) = 0 [pid 6187] close(10 [pid 5873] mkdir("./60", 0777 [pid 6189] perf_event_open( [pid 6187] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=58, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5874] restart_syscall(<... resuming interrupted clone ...> [pid 5873] <... mkdir resumed>) = 0 [pid 6187] close(11 [pid 6189] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6188] close(6 [pid 6187] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5874] <... restart_syscall resumed>) = 0 [pid 5874] umount2("./56", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 6190 attached [pid 6189] close(3 [pid 6188] <... close resumed>) = 0 [pid 6187] close(12 [pid 6188] close(7 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6188] <... close resumed>) = 0 [pid 6187] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6190] set_robust_list(0x5555947fb660, 24 [pid 5874] openat(AT_FDCWD, "./56", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 62 [pid 6190] <... set_robust_list resumed>) = 0 [pid 6188] close(8 [pid 6187] close(13 [pid 5874] <... openat resumed>) = 3 [pid 6188] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] newfstatat(3, "", [pid 6188] close(9 [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6190] chdir("./60" [pid 6188] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6187] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] getdents64(3, [pid 6190] <... chdir resumed>) = 0 [pid 6188] close(10 [pid 6187] close(14 [pid 6190] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6187] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6190] <... prctl resumed>) = 0 [pid 6187] close(15 [pid 6188] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6187] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6190] setpgid(0, 0 [pid 6188] close(11 [pid 6187] close(16 [pid 5874] umount2("./56/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6190] <... setpgid resumed>) = 0 [pid 6188] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6187] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6188] close(12 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6190] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 6188] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6187] close(17 [pid 5874] newfstatat(AT_FDCWD, "./56/binderfs", [pid 6190] <... symlink resumed>) = 0 [pid 6188] close(13 [pid 6187] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6188] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6190] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 6188] close(14 [pid 6187] close(18 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6190] <... symlink resumed>) = 0 [pid 6188] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6187] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6190] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 6187] close(19 [pid 6188] close(15 [pid 6187] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] unlink("./56/binderfs" [pid 6190] <... symlink resumed>) = 0 [pid 6188] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6187] close(20 [pid 6188] close(16) = -1 EBADF (Bad file descriptor) [pid 5874] <... unlink resumed>) = 0 [pid 6190] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6189] <... close resumed>) = 0 [pid 6188] close(17 [pid 6187] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./56/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6190] <... openat resumed>) = 3 [pid 6189] close(4 [pid 6188] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6187] close(21 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6188] close(18 [pid 6187] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] newfstatat(AT_FDCWD, "./56/cgroup.net", [pid 6190] write(3, "1000", 4 [pid 6189] <... close resumed>) = 0 [pid 6188] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6187] close(22 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6190] <... write resumed>) = 4 [pid 6188] close(19 [pid 6187] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6190] close(3 [pid 6189] close(5 [pid 6187] close(23 [pid 6188] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] unlink("./56/cgroup.net" [pid 6188] close(20 [pid 5874] <... unlink resumed>) = 0 [pid 6188] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6189] <... close resumed>) = 0 [pid 6188] close(21 [pid 5874] umount2("./56/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6190] <... close resumed>) = 0 [pid 6188] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6187] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6188] close(22 [pid 6187] close(24 [pid 5874] newfstatat(AT_FDCWD, "./56/cgroup.cpu", [pid 6190] read(200, [pid 6189] close(6 [pid 6188] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6187] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6190] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6188] close(23 [pid 6187] close(25 [pid 5874] unlink("./56/cgroup.cpu" [pid 6188] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6187] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... unlink resumed>) = 0 [pid 6188] close(24) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./56/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6188] close(25 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6189] <... close resumed>) = 0 [pid 6188] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6190] symlink("/dev/binderfs", "./binderfs" [pid 6187] close(26 [pid 6188] close(26 [pid 5874] newfstatat(AT_FDCWD, "./56/cgroup", [pid 6190] <... symlink resumed>) = 0 executing program [pid 6188] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6187] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6190] write(1, "executing program\n", 18 [pid 6189] close(7 [pid 6188] close(27 [pid 6187] close(27 [pid 5874] unlink("./56/cgroup" [pid 6190] <... write resumed>) = 18 [pid 6189] <... close resumed>) = 0 [pid 6188] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6187] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... unlink resumed>) = 0 [pid 6189] close(8 [pid 6188] close(28 [pid 6187] close(28 [pid 6190] perf_event_open( [pid 6188] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] getdents64(3, [pid 6190] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6189] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6188] close(29 [pid 6187] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6190] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6189] close(9 [pid 6188] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6187] close(29 [pid 6189] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6187] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] close(3 [pid 6190] <... bpf resumed>) = 4 [pid 6189] close(10 [pid 6188] exit_group(0 [pid 5874] <... close resumed>) = 0 [pid 6188] <... exit_group resumed>) = ? [pid 6187] exit_group(0 [pid 6190] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6189] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] rmdir("./56" [pid 6189] close(11 [pid 6188] +++ exited with 0 +++ [pid 6187] <... exit_group resumed>) = ? [pid 6189] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=60, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6190] <... bpf resumed>) = 5 [pid 6189] close(12 [pid 6187] +++ exited with 0 +++ [pid 5874] <... rmdir resumed>) = 0 [pid 6190] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6189] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=62, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5875] umount2("./58", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] mkdir("./57", 0777 [pid 6190] <... bpf resumed>) = 6 [pid 6189] close(13 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] <... mkdir resumed>) = 0 [pid 6190] perf_event_open( [pid 6189] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] openat(AT_FDCWD, "./58", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6190] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6189] close(14 [pid 5877] umount2("./60", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... openat resumed>) = 3 [pid 6189] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6189] close(15 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] newfstatat(3, "", [pid 6189] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] openat(AT_FDCWD, "./60", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6189] close(16 [pid 5877] <... openat resumed>) = 3 [pid 5875] getdents64(3, [pid 6189] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(3, "", [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6189] close(17 [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5875] umount2("./58/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6189] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6189] close(18 [pid 5877] getdents64(3, [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 6191 attached [pid 6189] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5875] newfstatat(AT_FDCWD, "./58/binderfs", [pid 6191] set_robust_list(0x5555947fb660, 24 [pid 6190] close(3 [pid 6189] close(19 [pid 5877] umount2("./60/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 59 [pid 6191] <... set_robust_list resumed>) = 0 [pid 6189] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] unlink("./58/binderfs" [pid 6191] chdir("./57" [pid 6189] close(20 [pid 5877] newfstatat(AT_FDCWD, "./60/binderfs", [pid 5875] <... unlink resumed>) = 0 [pid 6189] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6189] close(21) = -1 EBADF (Bad file descriptor) [pid 6189] close(22) = -1 EBADF (Bad file descriptor) [pid 6189] close(23) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] umount2("./58/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6191] <... chdir resumed>) = 0 [pid 6189] close(24 [pid 5877] unlink("./60/binderfs" [pid 6191] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6191] <... prctl resumed>) = 0 [pid 6189] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(AT_FDCWD, "./58/cgroup.net", [pid 6191] setpgid(0, 0 [pid 6189] close(25) = -1 EBADF (Bad file descriptor) [pid 6191] <... setpgid resumed>) = 0 [pid 6189] close(26 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6189] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6189] close(27) = -1 EBADF (Bad file descriptor) [pid 6189] close(28 [pid 6191] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 6189] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6189] close(29) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 5875] unlink("./58/cgroup.net" [pid 6191] <... symlink resumed>) = 0 [pid 6189] exit_group(0 [pid 5877] umount2("./60/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6191] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 6189] <... exit_group resumed>) = ? [pid 5875] <... unlink resumed>) = 0 [pid 6191] <... symlink resumed>) = 0 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] umount2("./58/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6191] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5877] newfstatat(AT_FDCWD, "./60/cgroup.net", [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6191] <... symlink resumed>) = 0 [pid 6191] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5877] unlink("./60/cgroup.net" [pid 5875] newfstatat(AT_FDCWD, "./58/cgroup.cpu", [pid 6191] <... openat resumed>) = 3 [pid 6189] +++ exited with 0 +++ [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5877] <... unlink resumed>) = 0 [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=63, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 6191] write(3, "1000", 4 [pid 5875] unlink("./58/cgroup.cpu" [pid 6191] <... write resumed>) = 4 [pid 5877] umount2("./60/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] restart_syscall(<... resuming interrupted clone ...> [pid 5875] <... unlink resumed>) = 0 [pid 6191] close(3 [pid 5875] umount2("./58/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6191] <... close resumed>) = 0 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6191] read(200, [pid 5877] newfstatat(AT_FDCWD, "./60/cgroup.cpu", [pid 6191] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6191] symlink("/dev/binderfs", "./binderfs" [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] newfstatat(AT_FDCWD, "./58/cgroup", [pid 6191] <... symlink resumed>) = 0 [pid 6191] write(1, "executing program\n", 18 executing program [pid 5877] unlink("./60/cgroup.cpu" [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6191] <... write resumed>) = 18 [pid 6191] perf_event_open( [pid 5877] <... unlink resumed>) = 0 [pid 5875] unlink("./58/cgroup" [pid 5877] umount2("./60/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... unlink resumed>) = 0 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5877] newfstatat(AT_FDCWD, "./60/cgroup", [pid 5875] getdents64(3, 0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5875] close(3 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] <... close resumed>) = 0 [pid 5875] rmdir("./58" [pid 5877] unlink("./60/cgroup" [pid 5876] <... restart_syscall resumed>) = 0 [pid 5875] <... rmdir resumed>) = 0 [pid 5877] <... unlink resumed>) = 0 [pid 5877] getdents64(3, 0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5875] mkdir("./59", 0777 [pid 5877] close(3) = 0 [pid 5877] rmdir("./60" [pid 5876] umount2("./61", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... mkdir resumed>) = 0 [pid 5877] <... rmdir resumed>) = 0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5877] mkdir("./61", 0777./strace-static-x86_64: Process 6192 attached [pid 5876] openat(AT_FDCWD, "./61", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5877] <... mkdir resumed>) = 0 [pid 5876] <... openat resumed>) = 3 [pid 5876] newfstatat(3, "", [pid 6192] set_robust_list(0x5555947fb660, 24 [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6192] <... set_robust_list resumed>) = 0 [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6192] chdir("./59" [pid 5876] getdents64(3, 0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5876] umount2("./61/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5876] newfstatat(AT_FDCWD, "./61/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] unlink("./61/binderfs") = 0 [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 61 [pid 5876] umount2("./61/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 6193 attached ) = -1 EINVAL (Invalid argument) [pid 6193] set_robust_list(0x5555947fb660, 24 [pid 5876] newfstatat(AT_FDCWD, "./61/cgroup.net", [pid 6193] <... set_robust_list resumed>) = 0 [pid 6192] <... chdir resumed>) = 0 [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 63 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6193] chdir("./61" [pid 6192] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5876] unlink("./61/cgroup.net" [pid 6193] <... chdir resumed>) = 0 [pid 6192] <... prctl resumed>) = 0 [pid 6192] setpgid(0, 0 [pid 5876] <... unlink resumed>) = 0 [pid 6192] <... setpgid resumed>) = 0 [pid 6193] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6193] setpgid(0, 0) = 0 [pid 6192] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5876] umount2("./61/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6192] <... symlink resumed>) = 0 [pid 6190] <... close resumed>) = 0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6193] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 6191] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6190] close(4 [pid 5876] newfstatat(AT_FDCWD, "./61/cgroup.cpu", [pid 6193] <... symlink resumed>) = 0 [pid 6192] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 6191] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6193] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 6192] <... symlink resumed>) = 0 [pid 6191] <... bpf resumed>) = 4 [pid 6190] <... close resumed>) = 0 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6193] <... symlink resumed>) = 0 [pid 6191] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5876] unlink("./61/cgroup.cpu" [pid 6193] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 6192] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 6190] close(5 [pid 6193] <... symlink resumed>) = 0 [pid 5876] <... unlink resumed>) = 0 [pid 6192] <... symlink resumed>) = 0 [pid 6191] <... bpf resumed>) = 5 [pid 6190] <... close resumed>) = 0 [pid 5876] umount2("./61/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6192] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6193] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6192] <... openat resumed>) = 3 [pid 5876] newfstatat(AT_FDCWD, "./61/cgroup", [pid 6193] write(3, "1000", 4 [pid 6190] close(6 [pid 6193] <... write resumed>) = 4 [pid 6192] write(3, "1000", 4 [pid 6191] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6193] close(3 [pid 6192] <... write resumed>) = 4 [pid 6193] <... close resumed>) = 0 [pid 6192] close(3 [pid 6190] <... close resumed>) = 0 [pid 5876] unlink("./61/cgroup" [pid 6190] close(7 [pid 6193] read(200, [pid 6192] <... close resumed>) = 0 [pid 6190] <... close resumed>) = 0 [pid 5876] <... unlink resumed>) = 0 [pid 6193] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6191] <... bpf resumed>) = 6 [pid 6190] close(8 [pid 6192] read(200, [pid 6193] symlink("/dev/binderfs", "./binderfs" [pid 6192] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6190] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] getdents64(3, [pid 6191] perf_event_open( [pid 6190] close(9 [pid 6193] <... symlink resumed>) = 0 [pid 6190] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6190] close(10) = -1 EBADF (Bad file descriptor) [pid 6190] close(11) = -1 EBADF (Bad file descriptor) [pid 6190] close(12) = -1 EBADF (Bad file descriptor) [pid 6190] close(13) = -1 EBADF (Bad file descriptor) [pid 6190] close(14 [pid 6192] symlink("/dev/binderfs", "./binderfs" [pid 6190] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6190] close(15) = -1 EBADF (Bad file descriptor) [pid 6190] close(16) = -1 EBADF (Bad file descriptor) [pid 6190] close(17) = -1 EBADF (Bad file descriptor) [pid 6190] close(18) = -1 EBADF (Bad file descriptor) [pid 6190] close(19) = -1 EBADF (Bad file descriptor) [pid 6190] close(20) = -1 EBADF (Bad file descriptor) [pid 6190] close(21) = -1 EBADF (Bad file descriptor) [pid 6190] close(22) = -1 EBADF (Bad file descriptor) [pid 6190] close(23) = -1 EBADF (Bad file descriptor) [pid 6190] close(24) = -1 EBADF (Bad file descriptor) [pid 6190] close(25) = -1 EBADF (Bad file descriptor) [pid 6190] close(26) = -1 EBADF (Bad file descriptor) [pid 6190] close(27) = -1 EBADF (Bad file descriptor) [pid 6190] close(28) = -1 EBADF (Bad file descriptor) [pid 6190] close(29) = -1 EBADF (Bad file descriptor) [pid 6190] exit_group(0) = ? [pid 6193] write(1, "executing program\n", 18 [pid 6192] <... symlink resumed>) = 0 [pid 6191] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5876] close(3) = 0 executing program executing program [pid 6193] <... write resumed>) = 18 [pid 6192] write(1, "executing program\n", 18 [pid 5876] rmdir("./61" [pid 6193] perf_event_open({type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6192] <... write resumed>) = 18 [pid 6191] close(3 [pid 5876] <... rmdir resumed>) = 0 [pid 6193] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6192] perf_event_open( [pid 6191] <... close resumed>) = 0 [pid 5876] mkdir("./62", 0777 [pid 6190] +++ exited with 0 +++ [pid 6191] close(4 [pid 6193] <... bpf resumed>) = 4 [pid 6192] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 5876] <... mkdir resumed>) = 0 [pid 6193] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6192] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6191] <... close resumed>) = 0 [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=62, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 6192] <... bpf resumed>) = 4 [pid 6191] close(5 [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6193] <... bpf resumed>) = 5 [pid 6192] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5873] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 6194 attached [pid 6193] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6191] <... close resumed>) = 0 [pid 6194] set_robust_list(0x5555947fb660, 24 [pid 6193] <... bpf resumed>) = 6 [pid 6191] close(6 [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 64 [pid 6194] <... set_robust_list resumed>) = 0 [pid 6193] perf_event_open( [pid 6194] chdir("./62" [pid 5873] <... restart_syscall resumed>) = 0 [pid 6194] <... chdir resumed>) = 0 [pid 6193] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6192] <... bpf resumed>) = 5 [pid 6191] <... close resumed>) = 0 [pid 6194] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6193] close(3 [pid 6192] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6191] close(7 [pid 6194] <... prctl resumed>) = 0 [pid 6192] <... bpf resumed>) = 6 [pid 6191] <... close resumed>) = 0 [pid 6194] setpgid(0, 0) = 0 [pid 6191] close(8 [pid 6194] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 6193] <... close resumed>) = 0 [pid 6191] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6191] close(9) = -1 EBADF (Bad file descriptor) [pid 6194] <... symlink resumed>) = 0 [pid 6193] close(4 [pid 6192] perf_event_open( [pid 6191] close(10 [pid 5873] umount2("./60", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6194] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 6193] <... close resumed>) = 0 [pid 6191] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6194] <... symlink resumed>) = 0 [pid 6193] close(5 [pid 6191] close(11 [pid 6192] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6191] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6194] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 6191] close(12 [pid 5873] openat(AT_FDCWD, "./60", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6194] <... symlink resumed>) = 0 [pid 6191] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6194] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6191] close(13 [pid 6194] <... openat resumed>) = 3 [pid 6191] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6191] close(14 [pid 5873] <... openat resumed>) = 3 [pid 6191] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6191] close(15 [pid 5873] newfstatat(3, "", [pid 6194] write(3, "1000", 4 [pid 6193] <... close resumed>) = 0 [pid 6192] close(3 [pid 6191] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6191] close(16 [pid 6193] close(6 [pid 6191] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6194] <... write resumed>) = 4 [pid 6191] close(17 [pid 6194] close(3 [pid 6191] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] getdents64(3, [pid 6194] <... close resumed>) = 0 [pid 6191] close(18 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6194] read(200, [pid 6191] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6194] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6193] <... close resumed>) = 0 [pid 6191] close(19 [pid 5873] umount2("./60/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6194] symlink("/dev/binderfs", "./binderfs" [pid 6193] close(7 [pid 6191] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6193] <... close resumed>) = 0 [pid 6191] close(20 [pid 5873] newfstatat(AT_FDCWD, "./60/binderfs", [pid 6194] <... symlink resumed>) = 0 [pid 6191] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6193] close(8 [pid 6191] close(21 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6194] write(1, "executing program\n", 18 [pid 6193] <... close resumed>) = -1 EBADF (Bad file descriptor) executing program [pid 6191] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6194] <... write resumed>) = 18 [pid 6193] close(9 [pid 6191] close(22 [pid 5873] unlink("./60/binderfs" [pid 6191] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6191] close(23) = -1 EBADF (Bad file descriptor) [pid 5873] <... unlink resumed>) = 0 [pid 6191] close(24) = -1 EBADF (Bad file descriptor) [pid 6191] close(25) = -1 EBADF (Bad file descriptor) [pid 6191] close(26) = -1 EBADF (Bad file descriptor) [pid 6191] close(27 [pid 6194] perf_event_open( [pid 6191] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6193] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] umount2("./60/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6193] close(10 [pid 6191] close(28 [pid 6193] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6191] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6193] close(11 [pid 6191] close(29 [pid 6193] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6191] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] newfstatat(AT_FDCWD, "./60/cgroup.net", [pid 6193] close(12 [pid 6191] exit_group(0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6193] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6191] <... exit_group resumed>) = ? [pid 5873] unlink("./60/cgroup.net" [pid 6193] close(13) = -1 EBADF (Bad file descriptor) [pid 5873] <... unlink resumed>) = 0 [pid 6193] close(14) = -1 EBADF (Bad file descriptor) [pid 6193] close(15 [pid 5873] umount2("./60/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6193] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6193] close(16) = -1 EBADF (Bad file descriptor) [pid 5873] newfstatat(AT_FDCWD, "./60/cgroup.cpu", [pid 6193] close(17 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6193] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] unlink("./60/cgroup.cpu" [pid 6193] close(18 [pid 5873] <... unlink resumed>) = 0 [pid 6194] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6193] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6192] <... close resumed>) = 0 [pid 6191] +++ exited with 0 +++ [pid 5873] umount2("./60/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6194] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6193] close(19 [pid 6192] close(4 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6194] <... bpf resumed>) = 4 [pid 6193] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=59, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5874] umount2("./57", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6193] close(20 [pid 5873] newfstatat(AT_FDCWD, "./60/cgroup", [pid 6194] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6193] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6192] <... close resumed>) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6193] close(21 [pid 6192] close(5 [pid 6194] <... bpf resumed>) = 5 [pid 6193] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6192] <... close resumed>) = 0 [pid 5874] openat(AT_FDCWD, "./57", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5873] unlink("./60/cgroup" [pid 6194] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6193] close(22 [pid 6192] close(6 [pid 5874] <... openat resumed>) = 3 [pid 5873] <... unlink resumed>) = 0 [pid 6194] <... bpf resumed>) = 6 [pid 6193] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] newfstatat(3, "", [pid 5873] getdents64(3, [pid 6194] perf_event_open( [pid 6193] close(23 [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6194] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6193] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] getdents64(3, [pid 5873] close(3 [pid 6194] close(3 [pid 6193] close(24 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5873] <... close resumed>) = 0 [pid 6193] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6192] <... close resumed>) = 0 [pid 5874] umount2("./57/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] rmdir("./60" [pid 6193] close(25) = -1 EBADF (Bad file descriptor) [pid 6192] close(7 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... rmdir resumed>) = 0 [pid 6193] close(26 [pid 6192] <... close resumed>) = 0 [pid 5874] newfstatat(AT_FDCWD, "./57/binderfs", [pid 6193] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6192] close(8 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] mkdir("./61", 0777 [pid 6193] close(27 [pid 6192] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... mkdir resumed>) = 0 [pid 6193] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6192] close(9 [pid 5874] unlink("./57/binderfs" [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6193] close(28 [pid 6192] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... unlink resumed>) = 0 [pid 6193] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6192] close(10 [pid 6193] close(29 [pid 5874] umount2("./57/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6193] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6193] exit_group(0 [pid 6192] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] newfstatat(AT_FDCWD, "./57/cgroup.net", [pid 6193] <... exit_group resumed>) = ? [pid 6192] close(11) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 6195 attached [pid 6194] <... close resumed>) = 0 [pid 6193] +++ exited with 0 +++ [pid 6192] close(12 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 63 [pid 6195] set_robust_list(0x5555947fb660, 24 [pid 6194] close(4 [pid 6192] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=63, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6192] close(13 [pid 6195] <... set_robust_list resumed>) = 0 [pid 5874] unlink("./57/cgroup.net" [pid 6194] <... close resumed>) = 0 [pid 6192] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6192] close(14) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./61", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... unlink resumed>) = 0 [pid 6195] chdir("./61" [pid 6194] close(5 [pid 6192] close(15 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] umount2("./57/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5874] newfstatat(AT_FDCWD, "./57/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] unlink("./57/cgroup.cpu" [pid 6195] <... chdir resumed>) = 0 [pid 6194] <... close resumed>) = 0 [pid 6192] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] openat(AT_FDCWD, "./61", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6195] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6194] close(6 [pid 6192] close(16 [pid 5877] <... openat resumed>) = 3 [pid 5874] <... unlink resumed>) = 0 [pid 6195] <... prctl resumed>) = 0 [pid 6192] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(3, "", [pid 6195] setpgid(0, 0 [pid 6192] close(17 [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5874] umount2("./57/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6195] <... setpgid resumed>) = 0 [pid 6194] <... close resumed>) = 0 [pid 6192] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] getdents64(3, [pid 6195] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 6194] close(7 [pid 6192] close(18 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6195] <... symlink resumed>) = 0 [pid 6194] <... close resumed>) = 0 [pid 6192] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./61/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] newfstatat(AT_FDCWD, "./57/cgroup", [pid 6195] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 6192] close(19 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6195] <... symlink resumed>) = 0 [pid 6194] close(8 [pid 6192] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./61/binderfs", [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6195] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 6194] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6192] close(20 [pid 5874] unlink("./57/cgroup" [pid 6194] close(9 [pid 6192] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6194] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6192] close(21 [pid 6194] close(10 [pid 5874] <... unlink resumed>) = 0 [pid 6192] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6195] <... symlink resumed>) = 0 [pid 6194] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6194] close(11) = -1 EBADF (Bad file descriptor) [pid 6194] close(12 [pid 6195] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6194] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6192] close(22 [pid 5877] unlink("./61/binderfs" [pid 5874] getdents64(3, [pid 6195] <... openat resumed>) = 3 [pid 6194] close(13 [pid 6192] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6195] write(3, "1000", 4 [pid 6194] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6192] close(23 [pid 5877] umount2("./61/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] close(3 [pid 6195] <... write resumed>) = 4 [pid 6194] close(14 [pid 6192] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6195] close(3 [pid 6194] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6192] close(24 [pid 5877] newfstatat(AT_FDCWD, "./61/cgroup.net", [pid 5874] <... close resumed>) = 0 [pid 6195] <... close resumed>) = 0 [pid 6194] close(15 [pid 6192] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6195] read(200, [pid 6194] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6192] close(25 [pid 5874] rmdir("./57" [pid 6195] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6194] close(16 [pid 6192] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./61/cgroup.net" [pid 5874] <... rmdir resumed>) = 0 [pid 6195] symlink("/dev/binderfs", "./binderfs" [pid 6194] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6192] close(26 [pid 5877] <... unlink resumed>) = 0 [pid 6195] <... symlink resumed>) = 0 [pid 6194] close(17 [pid 6192] <... close resumed>) = -1 EBADF (Bad file descriptor) executing program [pid 5874] mkdir("./58", 0777 [pid 6195] write(1, "executing program\n", 18 [pid 6194] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6192] close(27 [pid 5877] umount2("./61/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6195] <... write resumed>) = 18 [pid 6194] close(18 [pid 6192] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6195] perf_event_open( [pid 6194] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6192] close(28 [pid 5877] newfstatat(AT_FDCWD, "./61/cgroup.cpu", [pid 6194] close(19 [pid 6192] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] <... mkdir resumed>) = 0 [pid 6192] close(29 [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6194] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6192] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./61/cgroup.cpu"./strace-static-x86_64: Process 6196 attached [pid 6194] close(20 [pid 6192] exit_group(0 [pid 6194] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 60 [pid 6196] set_robust_list(0x5555947fb660, 24 [pid 6195] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6194] close(21 [pid 6192] <... exit_group resumed>) = ? [pid 5877] umount2("./61/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6196] <... set_robust_list resumed>) = 0 [pid 6195] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6194] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6196] chdir("./58" [pid 6195] <... bpf resumed>) = 4 [pid 6194] close(22 [pid 5877] newfstatat(AT_FDCWD, "./61/cgroup", [pid 6196] <... chdir resumed>) = 0 [pid 6195] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6194] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6196] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6192] +++ exited with 0 +++ [pid 6194] close(23 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6196] <... prctl resumed>) = 0 [pid 6194] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./61/cgroup" [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=61, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 6196] setpgid(0, 0 [pid 6194] close(24 [pid 6196] <... setpgid resumed>) = 0 [pid 6195] <... bpf resumed>) = 5 [pid 5877] <... unlink resumed>) = 0 [pid 6194] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6194] close(25 [pid 5877] getdents64(3, 0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6196] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 6194] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6196] <... symlink resumed>) = 0 [pid 6195] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6194] close(26 [pid 5877] close(3 [pid 6195] <... bpf resumed>) = 6 [pid 6194] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6196] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 6194] close(27 [pid 5877] <... close resumed>) = 0 [pid 6195] perf_event_open( [pid 6194] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6196] <... symlink resumed>) = 0 [pid 5877] rmdir("./61" [pid 6194] close(28) = -1 EBADF (Bad file descriptor) [pid 5877] <... rmdir resumed>) = 0 [pid 6196] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 6195] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6194] close(29 [pid 5877] mkdir("./62", 0777 [pid 6194] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... mkdir resumed>) = 0 [pid 6195] close(3 [pid 6196] <... symlink resumed>) = 0 [pid 6194] exit_group(0 [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6196] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6194] <... exit_group resumed>) = ? [pid 5875] umount2("./59", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 6197 attached ) = -1 EINVAL (Invalid argument) [pid 6197] set_robust_list(0x5555947fb660, 24 [pid 5875] openat(AT_FDCWD, "./59", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 6197] <... set_robust_list resumed>) = 0 [pid 6197] chdir("./62" [pid 5875] newfstatat(3, "", [pid 6196] <... openat resumed>) = 3 [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6197] <... chdir resumed>) = 0 [pid 5875] getdents64(3, [pid 6197] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6197] <... prctl resumed>) = 0 [pid 6194] +++ exited with 0 +++ [pid 6196] write(3, "1000", 4 [pid 5875] umount2("./59/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6197] setpgid(0, 0 [pid 6196] <... write resumed>) = 4 [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 64 [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=64, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6196] close(3) = 0 executing program [pid 6197] <... setpgid resumed>) = 0 [pid 6196] read(200, [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6196] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6196] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5875] newfstatat(AT_FDCWD, "./59/binderfs", [pid 6196] write(1, "executing program\n", 18) = 18 [pid 6197] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 6196] perf_event_open( [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6197] <... symlink resumed>) = 0 [pid 5875] unlink("./59/binderfs" [pid 6197] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu") = 0 [pid 5875] <... unlink resumed>) = 0 [pid 5875] umount2("./59/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6197] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 6196] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6195] <... close resumed>) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6197] <... symlink resumed>) = 0 [pid 6195] close(4 [pid 5875] newfstatat(AT_FDCWD, "./59/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6197] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6196] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6195] <... close resumed>) = 0 [pid 5875] unlink("./59/cgroup.net" [pid 6197] <... openat resumed>) = 3 [pid 6196] <... bpf resumed>) = 4 [pid 5876] umount2("./62", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... unlink resumed>) = 0 [pid 6197] write(3, "1000", 4 [pid 6196] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6195] close(5 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] umount2("./59/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6197] <... write resumed>) = 4 [pid 6196] <... bpf resumed>) = 5 [pid 5876] openat(AT_FDCWD, "./62", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5876] <... openat resumed>) = 3 [pid 6197] close(3 [pid 6196] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6195] <... close resumed>) = 0 [pid 5876] newfstatat(3, "", [pid 5875] newfstatat(AT_FDCWD, "./59/cgroup.cpu", [pid 6197] <... close resumed>) = 0 [pid 6196] <... bpf resumed>) = 6 [pid 6195] close(6 [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6197] read(200, [pid 6196] perf_event_open( [pid 5876] getdents64(3, [pid 5875] unlink("./59/cgroup.cpu" [pid 6197] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6195] <... close resumed>) = 0 [pid 6195] close(7 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5875] <... unlink resumed>) = 0 [pid 6196] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6197] symlink("/dev/binderfs", "./binderfs" [pid 5875] umount2("./59/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] umount2("./62/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6196] close(3 [pid 6195] <... close resumed>) = 0 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6195] close(8 [pid 5876] newfstatat(AT_FDCWD, "./62/binderfs", [pid 5875] newfstatat(AT_FDCWD, "./59/cgroup", [pid 6197] <... symlink resumed>) = 0 [pid 6195] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 executing program [pid 6197] write(1, "executing program\n", 18 [pid 6195] close(9 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6197] <... write resumed>) = 18 [pid 6195] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6195] close(10 [pid 5875] unlink("./59/cgroup" [pid 6197] perf_event_open( [pid 5876] unlink("./62/binderfs" [pid 6195] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 5876] umount2("./62/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5876] newfstatat(AT_FDCWD, "./62/cgroup.net", [pid 6195] close(11 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] <... unlink resumed>) = 0 [pid 6195] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] unlink("./62/cgroup.net" [pid 6195] close(12 [pid 5875] getdents64(3, [pid 6195] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 6195] close(13 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6195] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] close(3 [pid 6195] close(14) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./62/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... close resumed>) = 0 [pid 6195] close(15 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6195] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(AT_FDCWD, "./62/cgroup.cpu", [pid 5875] rmdir("./59" [pid 6195] close(16 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6195] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... rmdir resumed>) = 0 [pid 6195] close(17) = -1 EBADF (Bad file descriptor) [pid 5876] unlink("./62/cgroup.cpu" [pid 6195] close(18 [pid 5876] <... unlink resumed>) = 0 [pid 5875] mkdir("./60", 0777 [pid 6195] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6195] close(19 [pid 5876] umount2("./62/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5875] <... mkdir resumed>) = 0 [pid 5876] newfstatat(AT_FDCWD, "./62/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] unlink("./62/cgroup" [pid 6197] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6196] <... close resumed>) = 0 [pid 6195] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6197] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6195] close(20 [pid 5876] getdents64(3, [pid 6197] <... bpf resumed>) = 4 [pid 6195] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6197] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6195] close(21 [pid 5876] close(3./strace-static-x86_64: Process 6198 attached [pid 6196] close(4 [pid 6195] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... close resumed>) = 0 [pid 6198] set_robust_list(0x5555947fb660, 24 [pid 6196] <... close resumed>) = 0 [pid 6195] close(22 [pid 5876] rmdir("./62" [pid 6198] <... set_robust_list resumed>) = 0 [pid 6197] <... bpf resumed>) = 5 [pid 6196] close(5 [pid 6195] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 62 [pid 6198] chdir("./60" [pid 6197] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6196] <... close resumed>) = 0 [pid 6195] close(23 [pid 5876] <... rmdir resumed>) = 0 [pid 6196] close(6 [pid 6195] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] mkdir("./63", 0777 [pid 6198] <... chdir resumed>) = 0 [pid 6195] close(24 [pid 6198] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6195] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... mkdir resumed>) = 0 [pid 6198] <... prctl resumed>) = 0 [pid 6195] close(25 [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6195] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6195] close(26 [pid 6197] <... bpf resumed>) = 6 ./strace-static-x86_64: Process 6199 attached [pid 6198] setpgid(0, 0 [pid 6196] <... close resumed>) = 0 [pid 6195] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6197] perf_event_open( [pid 6199] set_robust_list(0x5555947fb660, 24 [pid 6198] <... setpgid resumed>) = 0 [pid 6196] close(7 [pid 6195] close(27 [pid 6199] <... set_robust_list resumed>) = 0 [pid 6198] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 6197] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6195] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6196] <... close resumed>) = 0 [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 65 [pid 6198] <... symlink resumed>) = 0 [pid 6197] close(3 [pid 6196] close(8 [pid 6195] close(28 [pid 6199] chdir("./63" [pid 6198] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 6196] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6195] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6199] <... chdir resumed>) = 0 [pid 6196] close(9 [pid 6195] close(29 [pid 6198] <... symlink resumed>) = 0 [pid 6196] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6195] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6198] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 6196] close(10 [pid 6198] <... symlink resumed>) = 0 [pid 6196] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6195] exit_group(0 [pid 6196] close(11 [pid 6198] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6196] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6195] <... exit_group resumed>) = ? [pid 6199] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6198] <... openat resumed>) = 3 [pid 6196] close(12 [pid 6199] <... prctl resumed>) = 0 [pid 6196] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6199] setpgid(0, 0 [pid 6198] write(3, "1000", 4 [pid 6196] close(13 [pid 6195] +++ exited with 0 +++ [pid 6199] <... setpgid resumed>) = 0 [pid 6198] <... write resumed>) = 4 [pid 6196] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6198] close(3 [pid 6196] close(14 [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=63, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6196] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] restart_syscall(<... resuming interrupted clone ...> [pid 6199] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 6196] close(15 [pid 5873] <... restart_syscall resumed>) = 0 [pid 6196] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6196] close(16) = -1 EBADF (Bad file descriptor) [pid 6196] close(17) = -1 EBADF (Bad file descriptor) [pid 6196] close(18) = -1 EBADF (Bad file descriptor) [pid 5873] umount2("./61", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6196] close(19 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6196] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6196] close(20 [pid 5873] openat(AT_FDCWD, "./61", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6196] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6198] <... close resumed>) = 0 [pid 6198] read(200, 0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6196] close(21 [pid 5873] <... openat resumed>) = 3 [pid 6196] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] newfstatat(3, "", [pid 6199] <... symlink resumed>) = 0 [pid 6198] symlink("/dev/binderfs", "./binderfs" [pid 6196] close(22 [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6196] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] getdents64(3, [pid 6196] close(23 [pid 6197] <... close resumed>) = 0 [pid 6196] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6196] close(24 [pid 6199] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 6198] <... symlink resumed>) = 0 [pid 6196] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] umount2("./61/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6198] write(1, "executing program\n", 18 [pid 6197] close(4 [pid 6196] close(25 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6199] <... symlink resumed>) = 0 [pid 6196] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6196] close(26 [pid 5873] newfstatat(AT_FDCWD, "./61/binderfs", [pid 6196] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6196] close(27 [pid 5873] unlink("./61/binderfs"executing program [pid 6199] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 6196] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... unlink resumed>) = 0 [pid 6196] close(28 [pid 5873] umount2("./61/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6196] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6196] close(29) = -1 EBADF (Bad file descriptor) [pid 5873] newfstatat(AT_FDCWD, "./61/cgroup.net", [pid 6196] exit_group(0) = ? [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6199] <... symlink resumed>) = 0 [pid 6198] <... write resumed>) = 18 [pid 6197] <... close resumed>) = 0 [pid 5873] unlink("./61/cgroup.net" [pid 6199] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6198] perf_event_open( [pid 6197] close(5 [pid 6198] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6196] +++ exited with 0 +++ [pid 5873] <... unlink resumed>) = 0 [pid 5873] umount2("./61/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=60, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] restart_syscall(<... resuming interrupted clone ...> [pid 5873] newfstatat(AT_FDCWD, "./61/cgroup.cpu", [pid 6197] <... close resumed>) = 0 [pid 5874] <... restart_syscall resumed>) = 0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6199] <... openat resumed>) = 3 [pid 6198] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6197] close(6 [pid 5873] unlink("./61/cgroup.cpu" [pid 6199] write(3, "1000", 4 [pid 5873] <... unlink resumed>) = 0 [pid 5874] umount2("./58", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] umount2("./61/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5873] newfstatat(AT_FDCWD, "./61/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] unlink("./61/cgroup") = 0 [pid 5873] getdents64(3, [pid 6199] <... write resumed>) = 4 [pid 6198] <... bpf resumed>) = 4 [pid 6197] <... close resumed>) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6199] close(3 [pid 5874] openat(AT_FDCWD, "./58", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6199] <... close resumed>) = 0 [pid 6198] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6197] close(7 [pid 5874] <... openat resumed>) = 3 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6199] read(200, [pid 6197] <... close resumed>) = 0 [pid 5873] close(3 [pid 6199] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6197] close(8 [pid 5874] newfstatat(3, "", [pid 6199] symlink("/dev/binderfs", "./binderfs" [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5873] <... close resumed>) = 0 [pid 6199] <... symlink resumed>) = 0 [pid 6197] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] rmdir("./61" [pid 6197] close(9 [pid 6199] write(1, "executing program\n", 18 [pid 6197] <... close resumed>) = -1 EBADF (Bad file descriptor) executing program [pid 5874] getdents64(3, [pid 5873] <... rmdir resumed>) = 0 [pid 6199] <... write resumed>) = 18 [pid 6198] <... bpf resumed>) = 5 [pid 6197] close(10 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6198] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6197] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] mkdir("./62", 0777 [pid 6199] perf_event_open( [pid 6197] close(11) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./58/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... mkdir resumed>) = 0 [pid 6199] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6198] <... bpf resumed>) = 6 [pid 6197] close(12 [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6199] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6198] perf_event_open( [pid 6197] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6199] <... bpf resumed>) = 4 [pid 6198] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6197] close(13 [pid 5874] newfstatat(AT_FDCWD, "./58/binderfs", ./strace-static-x86_64: Process 6200 attached [pid 6200] set_robust_list(0x5555947fb660, 24 [pid 6198] close(3 [pid 6197] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] unlink("./58/binderfs" [pid 6200] <... set_robust_list resumed>) = 0 [pid 6199] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6198] <... close resumed>) = 0 [pid 6197] close(14 [pid 5874] <... unlink resumed>) = 0 [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 64 [pid 6200] chdir("./62" [pid 6198] close(4 [pid 6197] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6198] <... close resumed>) = 0 [pid 6197] close(15 [pid 6198] close(5 [pid 6197] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6198] <... close resumed>) = 0 [pid 6197] close(16 [pid 6198] close(6 [pid 6197] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6200] <... chdir resumed>) = 0 [pid 6199] <... bpf resumed>) = 5 [pid 6198] <... close resumed>) = 0 [pid 6197] close(17 [pid 5874] umount2("./58/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6200] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6199] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6198] close(7 [pid 6197] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6200] <... prctl resumed>) = 0 [pid 6198] <... close resumed>) = 0 [pid 6197] close(18 [pid 5874] newfstatat(AT_FDCWD, "./58/cgroup.net", [pid 6199] <... bpf resumed>) = 6 [pid 6198] close(8 [pid 6197] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6200] setpgid(0, 0 [pid 6198] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6197] close(19 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6200] <... setpgid resumed>) = 0 [pid 6199] perf_event_open( [pid 6198] close(9 [pid 6197] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6198] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6197] close(20 [pid 5874] unlink("./58/cgroup.net" [pid 6200] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 6199] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6198] close(10 [pid 6197] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6198] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6197] close(21 [pid 5874] <... unlink resumed>) = 0 [pid 6198] close(11 [pid 6197] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6200] <... symlink resumed>) = 0 [pid 6198] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6197] close(22 [pid 6199] close(3 [pid 6198] close(12 [pid 6197] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6200] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5874] umount2("./58/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6198] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6197] close(23 [pid 6200] <... symlink resumed>) = 0 [pid 6198] close(13 [pid 6197] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6198] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6197] close(24 [pid 5874] newfstatat(AT_FDCWD, "./58/cgroup.cpu", [pid 6200] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 6198] close(14 [pid 6197] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6198] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6197] close(25 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6198] close(15 [pid 6197] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6198] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6197] close(26 [pid 6198] close(16 [pid 6197] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6198] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6197] close(27 [pid 6198] close(17) = -1 EBADF (Bad file descriptor) [pid 6197] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6198] close(18 [pid 6197] close(28 [pid 6198] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6197] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6198] close(19) = -1 EBADF (Bad file descriptor) [pid 6197] close(29 [pid 6198] close(20 [pid 6197] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6198] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6197] exit_group(0 [pid 6198] close(21) = -1 EBADF (Bad file descriptor) [pid 6200] <... symlink resumed>) = 0 [pid 6197] <... exit_group resumed>) = ? [pid 5874] unlink("./58/cgroup.cpu" [pid 6200] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6198] close(22 [pid 5874] <... unlink resumed>) = 0 [pid 6198] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6200] <... openat resumed>) = 3 [pid 5874] umount2("./58/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6200] write(3, "1000", 4 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6200] <... write resumed>) = 4 [pid 6198] close(23 [pid 5874] newfstatat(AT_FDCWD, "./58/cgroup", [pid 6200] close(3 [pid 6198] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6197] +++ exited with 0 +++ [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6198] close(24 [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=64, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 6198] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6200] <... close resumed>) = 0 [pid 6199] <... close resumed>) = 0 [pid 5877] restart_syscall(<... resuming interrupted clone ...> [pid 6198] close(25 [pid 5874] unlink("./58/cgroup" [pid 6200] read(200, [pid 6198] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... restart_syscall resumed>) = 0 [pid 5874] <... unlink resumed>) = 0 [pid 6200] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6199] close(4 [pid 5874] getdents64(3, [pid 6198] close(26 [pid 6200] symlink("/dev/binderfs", "./binderfs" [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6200] <... symlink resumed>) = 0 [pid 6199] <... close resumed>) = 0 [pid 6198] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] close(3 [pid 6200] write(1, "executing program\n", 18 [pid 6199] close(5 [pid 6198] close(27 [pid 5877] umount2("./62", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6198] <... close resumed>) = -1 EBADF (Bad file descriptor) executing program [pid 6200] <... write resumed>) = 18 [pid 6199] <... close resumed>) = 0 [pid 6198] close(28 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] <... close resumed>) = 0 [pid 6200] perf_event_open( [pid 6199] close(6 [pid 6198] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] rmdir("./58" [pid 6200] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6198] close(29 [pid 5877] openat(AT_FDCWD, "./62", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5874] <... rmdir resumed>) = 0 [pid 6200] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6198] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] mkdir("./59", 0777 [pid 6200] <... bpf resumed>) = 4 [pid 6198] exit_group(0 [pid 5877] <... openat resumed>) = 3 [pid 5874] <... mkdir resumed>) = 0 [pid 6200] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6199] <... close resumed>) = 0 [pid 6198] <... exit_group resumed>) = ? [pid 5877] newfstatat(3, "", ./strace-static-x86_64: Process 6201 attached [pid 6200] <... bpf resumed>) = 5 [pid 6199] close(7 [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 61 [pid 6201] set_robust_list(0x5555947fb660, 24 [pid 6200] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6199] <... close resumed>) = 0 [pid 5877] getdents64(3, [pid 6201] <... set_robust_list resumed>) = 0 [pid 6201] chdir("./59" [pid 6199] close(8 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6200] <... bpf resumed>) = 6 [pid 6199] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6201] <... chdir resumed>) = 0 [pid 6200] perf_event_open( [pid 6199] close(9 [pid 5877] umount2("./62/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6201] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6200] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6199] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6201] <... prctl resumed>) = 0 [pid 6199] close(10 [pid 6198] +++ exited with 0 +++ [pid 5877] newfstatat(AT_FDCWD, "./62/binderfs", [pid 6200] close(3 [pid 6199] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6201] setpgid(0, 0 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6199] close(11 [pid 5877] unlink("./62/binderfs" [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=62, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 6199] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 6199] close(12 [pid 5877] umount2("./62/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6199] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6199] close(13 [pid 5877] newfstatat(AT_FDCWD, "./62/cgroup.net", [pid 6201] <... setpgid resumed>) = 0 [pid 6199] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6199] close(14 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6199] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6199] close(15 [pid 5877] unlink("./62/cgroup.net" [pid 6201] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 6199] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 6199] close(16) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./62/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6199] close(17) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6199] close(18 [pid 5877] newfstatat(AT_FDCWD, "./62/cgroup.cpu", [pid 5875] umount2("./60", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6199] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6201] <... symlink resumed>) = 0 [pid 6199] close(19 [pid 5877] unlink("./62/cgroup.cpu" [pid 5875] openat(AT_FDCWD, "./60", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6201] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 6199] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 5875] <... openat resumed>) = 3 [pid 6201] <... symlink resumed>) = 0 [pid 6201] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 6199] close(20 [pid 5877] umount2("./62/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] newfstatat(3, "", [pid 6201] <... symlink resumed>) = 0 [pid 6199] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6199] close(21 [pid 5877] newfstatat(AT_FDCWD, "./62/cgroup", [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6199] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6201] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6199] close(22 [pid 5875] getdents64(3, [pid 6199] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./62/cgroup" [pid 6199] close(23 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6201] <... openat resumed>) = 3 [pid 6199] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 5875] umount2("./60/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6201] write(3, "1000", 4 [pid 6199] close(24 [pid 5877] getdents64(3, [pid 6201] <... write resumed>) = 4 [pid 5875] newfstatat(AT_FDCWD, "./60/binderfs", [pid 6201] close(3 [pid 6199] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6199] close(25 [pid 5877] close(3 [pid 6201] <... close resumed>) = 0 [pid 6199] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... close resumed>) = 0 [pid 5875] unlink("./60/binderfs" [pid 6201] read(200, [pid 6199] close(26 [pid 5877] rmdir("./62" [pid 5875] <... unlink resumed>) = 0 [pid 6201] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6200] <... close resumed>) = 0 [pid 6199] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... rmdir resumed>) = 0 [pid 5875] umount2("./60/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6201] symlink("/dev/binderfs", "./binderfs" [pid 6200] close(4 [pid 6199] close(27 [pid 5877] mkdir("./63", 0777 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6201] <... symlink resumed>) = 0 [pid 6199] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... mkdir resumed>) = 0 executing program [pid 6200] <... close resumed>) = 0 [pid 6199] close(28 [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6201] write(1, "executing program\n", 18 [pid 6199] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] newfstatat(AT_FDCWD, "./60/cgroup.net", [pid 6200] close(5 [pid 6201] <... write resumed>) = 18 [pid 6200] <... close resumed>) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6201] perf_event_open(./strace-static-x86_64: Process 6202 attached [pid 6200] close(6 [pid 6199] close(29 [pid 5875] unlink("./60/cgroup.net" [pid 6202] set_robust_list(0x5555947fb660, 24 [pid 6199] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 65 [pid 6202] <... set_robust_list resumed>) = 0 [pid 6201] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6199] exit_group(0 [pid 5875] <... unlink resumed>) = 0 [pid 6202] chdir("./63" [pid 6199] <... exit_group resumed>) = ? [pid 6201] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6200] <... close resumed>) = 0 [pid 5875] umount2("./60/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6202] <... chdir resumed>) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6201] <... bpf resumed>) = 4 [pid 6200] close(7 [pid 6199] +++ exited with 0 +++ [pid 5875] newfstatat(AT_FDCWD, "./60/cgroup.cpu", [pid 6202] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6201] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6200] <... close resumed>) = 0 [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=65, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6202] <... prctl resumed>) = 0 [pid 5876] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5876] umount2("./63", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6202] setpgid(0, 0 [pid 6201] <... bpf resumed>) = 5 [pid 6200] close(8 [pid 5875] unlink("./60/cgroup.cpu" [pid 6202] <... setpgid resumed>) = 0 [pid 6200] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6202] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 6200] close(9 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... unlink resumed>) = 0 [pid 6201] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6202] <... symlink resumed>) = 0 [pid 6200] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] openat(AT_FDCWD, "./63", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6200] close(10 [pid 5876] <... openat resumed>) = 3 [pid 5875] umount2("./60/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5876] newfstatat(3, "", [pid 6200] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6200] close(11 [pid 5876] getdents64(3, [pid 6200] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5876] umount2("./63/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6202] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 6201] <... bpf resumed>) = 6 [pid 6200] close(12 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6202] <... symlink resumed>) = 0 [pid 6201] perf_event_open( [pid 6200] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(AT_FDCWD, "./63/binderfs", [pid 5875] newfstatat(AT_FDCWD, "./60/cgroup", [pid 6202] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 6201] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6200] close(13 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6202] <... symlink resumed>) = 0 [pid 6201] close(3 [pid 6200] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6202] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6200] close(14 [pid 5876] unlink("./63/binderfs" [pid 5875] unlink("./60/cgroup" [pid 6202] <... openat resumed>) = 3 [pid 6200] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 5875] <... unlink resumed>) = 0 [pid 6202] write(3, "1000", 4 [pid 6200] close(15) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./63/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] getdents64(3, [pid 6202] <... write resumed>) = 4 [pid 6200] close(16 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6202] close(3 [pid 6200] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(AT_FDCWD, "./63/cgroup.net", [pid 6202] <... close resumed>) = 0 [pid 6200] close(17 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] close(3 [pid 6202] read(200, [pid 6200] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] unlink("./63/cgroup.net" [pid 6202] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6200] close(18 [pid 5875] <... close resumed>) = 0 [pid 5876] <... unlink resumed>) = 0 [pid 6202] symlink("/dev/binderfs", "./binderfs" [pid 6200] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] rmdir("./60" [pid 6202] <... symlink resumed>) = 0 [pid 6200] close(19 [pid 5876] umount2("./63/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... rmdir resumed>) = 0 [pid 6200] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] mkdir("./61", 0777executing program [pid 6202] write(1, "executing program\n", 18 [pid 6200] close(20 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6202] <... write resumed>) = 18 [pid 6200] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(AT_FDCWD, "./63/cgroup.cpu", [pid 5875] <... mkdir resumed>) = 0 [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6202] perf_event_open( [pid 6201] <... close resumed>) = 0 [pid 6200] close(21 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6202] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6201] close(4 [pid 6200] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6201] <... close resumed>) = 0 [pid 5876] unlink("./63/cgroup.cpu"./strace-static-x86_64: Process 6203 attached [pid 6201] close(5 [pid 6200] close(22 [pid 5876] <... unlink resumed>) = 0 [pid 6202] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6200] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 63 [pid 6203] set_robust_list(0x5555947fb660, 24 [pid 6201] <... close resumed>) = 0 [pid 6200] close(23 [pid 5876] umount2("./63/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6200] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6200] close(24 [pid 5876] newfstatat(AT_FDCWD, "./63/cgroup", [pid 6202] <... bpf resumed>) = 4 [pid 6203] <... set_robust_list resumed>) = 0 [pid 6201] close(6 [pid 6200] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6200] close(25 [pid 5876] unlink("./63/cgroup" [pid 6203] chdir("./61" [pid 6200] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 6200] close(26) = -1 EBADF (Bad file descriptor) [pid 5876] getdents64(3, [pid 6200] close(27 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6200] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6201] <... close resumed>) = 0 [pid 6200] close(28 [pid 5876] close(3 [pid 6203] <... chdir resumed>) = 0 [pid 6200] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... close resumed>) = 0 [pid 6203] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6200] close(29 [pid 5876] rmdir("./63" [pid 6203] <... prctl resumed>) = 0 [pid 6202] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6200] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6200] exit_group(0 [pid 5876] <... rmdir resumed>) = 0 [pid 6200] <... exit_group resumed>) = ? [pid 5876] mkdir("./64", 0777 [pid 6202] <... bpf resumed>) = 5 [pid 6201] close(7 [pid 6200] +++ exited with 0 +++ [pid 5876] <... mkdir resumed>) = 0 [pid 6203] setpgid(0, 0 [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6204 attached [pid 6203] <... setpgid resumed>) = 0 [pid 6202] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6201] <... close resumed>) = 0 [pid 6204] set_robust_list(0x5555947fb660, 24 [pid 6203] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 6201] close(8 [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=64, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 6204] <... set_robust_list resumed>) = 0 [pid 6202] <... bpf resumed>) = 6 [pid 6201] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 66 [pid 6203] <... symlink resumed>) = 0 [pid 6201] close(9) = -1 EBADF (Bad file descriptor) [pid 6201] close(10) = -1 EBADF (Bad file descriptor) [pid 6201] close(11) = -1 EBADF (Bad file descriptor) [pid 6201] close(12 [pid 6202] perf_event_open( [pid 6201] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6203] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 6201] close(13 [pid 6202] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6201] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6204] chdir("./64" [pid 6203] <... symlink resumed>) = 0 [pid 6202] close(3 [pid 6201] close(14 [pid 5873] umount2("./62", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6203] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 6201] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6203] <... symlink resumed>) = 0 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] openat(AT_FDCWD, "./62", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6203] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5873] <... openat resumed>) = 3 [pid 6204] <... chdir resumed>) = 0 [pid 6201] close(15 [pid 5873] newfstatat(3, "", [pid 6204] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6201] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6204] <... prctl resumed>) = 0 [pid 6201] close(16 [pid 6204] setpgid(0, 0 [pid 6203] <... openat resumed>) = 3 [pid 6201] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] getdents64(3, [pid 6204] <... setpgid resumed>) = 0 [pid 6201] close(17 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6203] write(3, "1000", 4 [pid 6201] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6204] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 6201] close(18 [pid 6203] <... write resumed>) = 4 [pid 6201] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] umount2("./62/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6204] <... symlink resumed>) = 0 [pid 6203] close(3 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6203] <... close resumed>) = 0 [pid 5873] newfstatat(AT_FDCWD, "./62/binderfs", [pid 6203] read(200, 0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6203] symlink("/dev/binderfs", "./binderfs" [pid 5873] unlink("./62/binderfs"executing program [pid 6203] <... symlink resumed>) = 0 [pid 6203] write(1, "executing program\n", 18 [pid 5873] <... unlink resumed>) = 0 [pid 6203] <... write resumed>) = 18 [pid 5873] umount2("./62/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6203] perf_event_open( [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6204] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 6203] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6202] <... close resumed>) = 0 [pid 6201] close(19 [pid 5873] newfstatat(AT_FDCWD, "./62/cgroup.net", [pid 6201] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6204] <... symlink resumed>) = 0 [pid 6203] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6202] close(4 [pid 6201] close(20 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6204] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 6203] <... bpf resumed>) = 4 [pid 6201] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6201] close(21 [pid 6203] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6201] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6202] <... close resumed>) = 0 [pid 5873] unlink("./62/cgroup.net" [pid 6204] <... symlink resumed>) = 0 [pid 6201] close(22 [pid 6203] <... bpf resumed>) = 5 [pid 6201] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... unlink resumed>) = 0 [pid 6201] close(23 [pid 6204] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6203] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6201] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] umount2("./62/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6204] <... openat resumed>) = 3 [pid 6203] <... bpf resumed>) = 6 [pid 6202] close(5 [pid 6201] close(24 [pid 6203] perf_event_open( [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6203] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6201] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6203] close(3 [pid 6201] close(25 [pid 5873] newfstatat(AT_FDCWD, "./62/cgroup.cpu", [pid 6204] write(3, "1000", 4 [pid 6201] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6204] <... write resumed>) = 4 [pid 6202] <... close resumed>) = 0 [pid 6201] close(26 [pid 6204] close(3 [pid 6201] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6204] <... close resumed>) = 0 [pid 6202] close(6 [pid 6201] close(27 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6204] read(200, [pid 6201] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] unlink("./62/cgroup.cpu" [pid 6201] close(28 [pid 5873] <... unlink resumed>) = 0 [pid 6201] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] umount2("./62/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6204] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6201] close(29 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6204] symlink("/dev/binderfs", "./binderfs" [pid 6201] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] newfstatat(AT_FDCWD, "./62/cgroup", [pid 6201] exit_group(0 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] unlink("./62/cgroup" [pid 6202] <... close resumed>) = 0 [pid 6201] <... exit_group resumed>) = ? [pid 6204] <... symlink resumed>) = 0 [pid 5873] <... unlink resumed>) = 0 [pid 5873] getdents64(3, [pid 6204] write(1, "executing program\n", 18 [pid 6202] close(7executing program [pid 6201] +++ exited with 0 +++ [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6204] <... write resumed>) = 18 [pid 6202] <... close resumed>) = 0 [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=61, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5873] close(3 [pid 6202] close(8 [pid 5873] <... close resumed>) = 0 [pid 6204] perf_event_open( [pid 6202] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] rmdir("./62" [pid 6202] close(9 [pid 5873] <... rmdir resumed>) = 0 [pid 6202] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6202] close(10) = -1 EBADF (Bad file descriptor) [pid 5873] mkdir("./63", 0777 [pid 6202] close(11 [pid 5873] <... mkdir resumed>) = 0 [pid 6202] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6202] close(12) = -1 EBADF (Bad file descriptor) [pid 6202] close(13 [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6202] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 6205 attached [pid 6202] close(14 [pid 5874] umount2("./59", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6202] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6202] close(15 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 65 [pid 6205] set_robust_list(0x5555947fb660, 24 [pid 6202] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] openat(AT_FDCWD, "./59", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6202] close(16) = -1 EBADF (Bad file descriptor) [pid 6202] close(17 [pid 5874] <... openat resumed>) = 3 [pid 6205] <... set_robust_list resumed>) = 0 [pid 6203] <... close resumed>) = 0 [pid 6202] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6205] chdir("./63" [pid 6204] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6203] close(4 [pid 6202] close(18 [pid 6205] <... chdir resumed>) = 0 [pid 6202] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] newfstatat(3, "", [pid 6205] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6205] <... prctl resumed>) = 0 [pid 5874] getdents64(3, [pid 6205] setpgid(0, 0 [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6205] <... setpgid resumed>) = 0 [pid 5874] umount2("./59/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6205] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 6204] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6203] <... close resumed>) = 0 [pid 6202] close(19 [pid 6205] <... symlink resumed>) = 0 [pid 6202] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6205] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 6202] close(20 [pid 6204] <... bpf resumed>) = 4 [pid 6202] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] newfstatat(AT_FDCWD, "./59/binderfs", [pid 6202] close(21 [pid 6205] <... symlink resumed>) = 0 [pid 6204] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6202] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6205] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 6203] close(5 [pid 6202] close(22 [pid 5874] unlink("./59/binderfs" [pid 6202] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6203] <... close resumed>) = 0 [pid 6202] close(23 [pid 5874] <... unlink resumed>) = 0 [pid 6205] <... symlink resumed>) = 0 [pid 6203] close(6) = 0 [pid 6204] <... bpf resumed>) = 5 [pid 6203] close(7 [pid 6205] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6204] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6202] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./59/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6205] <... openat resumed>) = 3 [pid 6203] <... close resumed>) = 0 [pid 6202] close(24 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6204] <... bpf resumed>) = 6 [pid 6203] close(8 [pid 6202] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] newfstatat(AT_FDCWD, "./59/cgroup.net", [pid 6204] perf_event_open( [pid 6203] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6202] close(25 [pid 6205] write(3, "1000", 4) = 4 [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6205] close(3 [pid 6203] close(9 [pid 6205] <... close resumed>) = 0 [pid 6205] read(200, [pid 6204] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6203] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6202] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] unlink("./59/cgroup.net" [pid 6205] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6204] close(3 [pid 6203] close(10 [pid 6205] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6203] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6202] close(26 [pid 5874] <... unlink resumed>) = 0 [pid 6203] close(11 [pid 6202] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6203] <... close resumed>) = -1 EBADF (Bad file descriptor) executing program [pid 6202] close(27 [pid 5874] umount2("./59/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6205] write(1, "executing program\n", 18 [pid 6203] close(12 [pid 6202] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6205] <... write resumed>) = 18 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6202] close(28 [pid 5874] newfstatat(AT_FDCWD, "./59/cgroup.cpu", [pid 6205] perf_event_open( [pid 6203] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6202] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6202] close(29 [pid 6203] close(13 [pid 5874] unlink("./59/cgroup.cpu" [pid 6203] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6202] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... unlink resumed>) = 0 [pid 6203] close(14) = -1 EBADF (Bad file descriptor) [pid 6202] exit_group(0 [pid 5874] umount2("./59/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6203] close(15 [pid 6202] <... exit_group resumed>) = ? [pid 6203] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6203] close(16) = -1 EBADF (Bad file descriptor) [pid 6203] close(17) = -1 EBADF (Bad file descriptor) [pid 6203] close(18) = -1 EBADF (Bad file descriptor) [pid 6203] close(19) = -1 EBADF (Bad file descriptor) [pid 6203] close(20) = -1 EBADF (Bad file descriptor) [pid 6203] close(21) = -1 EBADF (Bad file descriptor) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6203] close(22) = -1 EBADF (Bad file descriptor) [pid 6203] close(23) = -1 EBADF (Bad file descriptor) [pid 6203] close(24) = -1 EBADF (Bad file descriptor) [pid 6203] close(25) = -1 EBADF (Bad file descriptor) [pid 6203] close(26) = -1 EBADF (Bad file descriptor) [pid 6203] close(27) = -1 EBADF (Bad file descriptor) [pid 6203] close(28) = -1 EBADF (Bad file descriptor) [pid 6203] close(29) = -1 EBADF (Bad file descriptor) [pid 6203] exit_group(0 [pid 5874] newfstatat(AT_FDCWD, "./59/cgroup", [pid 6203] <... exit_group resumed>) = ? [pid 6203] +++ exited with 0 +++ [pid 5874] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=63, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6202] +++ exited with 0 +++ [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=65, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 6205] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6204] <... close resumed>) = 0 [pid 5874] unlink("./59/cgroup" [pid 6205] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6204] close(4 [pid 5874] <... unlink resumed>) = 0 [pid 6205] <... bpf resumed>) = 4 [pid 6204] <... close resumed>) = 0 [pid 6205] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6204] close(5 [pid 5874] getdents64(3, [pid 6204] <... close resumed>) = 0 [pid 5877] umount2("./63", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6204] close(6 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] umount2("./61", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6205] <... bpf resumed>) = 5 [pid 6204] <... close resumed>) = 0 [pid 5877] openat(AT_FDCWD, "./63", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5874] close(3 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5874] <... close resumed>) = 0 [pid 5877] <... openat resumed>) = 3 [pid 5875] openat(AT_FDCWD, "./61", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5874] rmdir("./59" [pid 6205] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6204] close(7 [pid 5875] <... openat resumed>) = 3 [pid 6204] <... close resumed>) = 0 [pid 5877] newfstatat(3, "", [pid 5875] newfstatat(3, "", [pid 6204] close(8 [pid 6205] <... bpf resumed>) = 6 [pid 6204] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6204] close(9 [pid 5874] <... rmdir resumed>) = 0 [pid 5877] getdents64(3, [pid 6204] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] getdents64(3, [pid 5874] mkdir("./60", 0777 [pid 6204] close(10 [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6204] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./61/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6204] close(11 [pid 5877] umount2("./63/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6204] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6204] close(12 [pid 6205] perf_event_open( [pid 6204] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] newfstatat(AT_FDCWD, "./61/binderfs", [pid 6205] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6204] close(13 [pid 5874] <... mkdir resumed>) = 0 [pid 6204] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./63/binderfs", [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6205] close(3 [pid 6204] close(14 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] unlink("./61/binderfs"./strace-static-x86_64: Process 6206 attached [pid 6204] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./63/binderfs" [pid 6206] set_robust_list(0x5555947fb660, 24 [pid 6204] close(15 [pid 5877] <... unlink resumed>) = 0 [pid 5875] <... unlink resumed>) = 0 [pid 5874] <... clone resumed>, child_tidptr=0x5555947fb650) = 62 [pid 6206] <... set_robust_list resumed>) = 0 [pid 6204] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./63/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] umount2("./61/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6206] chdir("./60" [pid 6204] close(16 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6206] <... chdir resumed>) = 0 [pid 6204] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./63/cgroup.net", [pid 5875] newfstatat(AT_FDCWD, "./61/cgroup.net", [pid 6206] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6204] close(17 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6206] <... prctl resumed>) = 0 [pid 6204] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] unlink("./61/cgroup.net" [pid 6206] setpgid(0, 0 [pid 6204] close(18 [pid 5877] unlink("./63/cgroup.net" [pid 5875] <... unlink resumed>) = 0 [pid 6206] <... setpgid resumed>) = 0 [pid 6204] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] umount2("./61/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6206] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5877] <... unlink resumed>) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6204] close(19 [pid 5875] newfstatat(AT_FDCWD, "./61/cgroup.cpu", [pid 6204] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./63/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6206] <... symlink resumed>) = 0 [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6206] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 6204] close(20 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] unlink("./61/cgroup.cpu" [pid 6206] <... symlink resumed>) = 0 [pid 6204] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... unlink resumed>) = 0 [pid 6206] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 6204] close(21 [pid 5875] umount2("./61/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6206] <... symlink resumed>) = 0 [pid 6204] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./63/cgroup.cpu", [pid 6206] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6204] close(22 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6206] <... openat resumed>) = 3 [pid 6204] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./63/cgroup.cpu" [pid 5875] newfstatat(AT_FDCWD, "./61/cgroup", [pid 6206] write(3, "1000", 4 [pid 6204] close(23 [pid 5877] <... unlink resumed>) = 0 [pid 6206] <... write resumed>) = 4 [pid 6204] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./63/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6206] close(3 [pid 6204] close(24 [pid 5875] unlink("./61/cgroup" [pid 6206] <... close resumed>) = 0 [pid 6204] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... unlink resumed>) = 0 [pid 6206] read(200, [pid 6204] close(25 [pid 5877] newfstatat(AT_FDCWD, "./63/cgroup", [pid 5875] getdents64(3, [pid 6206] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6204] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6206] symlink("/dev/binderfs", "./binderfs"executing program [pid 6204] close(26 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] close(3 [pid 6206] <... symlink resumed>) = 0 [pid 6204] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./63/cgroup" [pid 5875] <... close resumed>) = 0 [pid 6206] write(1, "executing program\n", 18 [pid 6204] close(27 [pid 5875] rmdir("./61" [pid 6206] <... write resumed>) = 18 [pid 6204] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 5875] <... rmdir resumed>) = 0 [pid 6206] perf_event_open( [pid 6204] close(28 [pid 5877] getdents64(3, [pid 5875] mkdir("./62", 0777 [pid 6206] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6205] <... close resumed>) = 0 [pid 6204] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 5875] <... mkdir resumed>) = 0 [pid 6206] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6205] close(4 [pid 6204] close(29 [pid 5877] close(3 [pid 6206] <... bpf resumed>) = 4 [pid 6204] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6206] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6205] <... close resumed>) = 0 ./strace-static-x86_64: Process 6207 attached [pid 6206] <... bpf resumed>) = 5 [pid 6204] exit_group(0 [pid 5877] <... close resumed>) = 0 [pid 6206] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6205] close(5 [pid 6204] <... exit_group resumed>) = ? [pid 5877] rmdir("./63" [pid 6207] set_robust_list(0x5555947fb660, 24 [pid 6205] <... close resumed>) = 0 [pid 5877] <... rmdir resumed>) = 0 [pid 5875] <... clone resumed>, child_tidptr=0x5555947fb650) = 64 [pid 6207] <... set_robust_list resumed>) = 0 [pid 6205] close(6 [pid 6204] +++ exited with 0 +++ [pid 5877] mkdir("./64", 0777 [pid 6206] <... bpf resumed>) = 6 [pid 6206] perf_event_open({type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6206] close(3 [pid 5877] <... mkdir resumed>) = 0 [pid 6207] chdir("./62" [pid 5877] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5876] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=66, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6207] <... chdir resumed>) = 0 [pid 5876] restart_syscall(<... resuming interrupted clone ...> [pid 6207] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6205] <... close resumed>) = 0 [pid 6207] <... prctl resumed>) = 0 [pid 6207] setpgid(0, 0 [pid 6205] close(7./strace-static-x86_64: Process 6208 attached [pid 6207] <... setpgid resumed>) = 0 [pid 6208] set_robust_list(0x5555947fb660, 24) = 0 [pid 6207] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 6205] <... close resumed>) = 0 [pid 6208] chdir("./64" [pid 5877] <... clone resumed>, child_tidptr=0x5555947fb650) = 66 [pid 6205] close(8) = -1 EBADF (Bad file descriptor) [pid 6207] <... symlink resumed>) = 0 [pid 6205] close(9 [pid 6207] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 6205] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6208] <... chdir resumed>) = 0 [pid 6207] <... symlink resumed>) = 0 [pid 6205] close(10 [pid 6208] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6207] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 6205] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6205] close(11 [pid 6208] <... prctl resumed>) = 0 [pid 6205] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6208] setpgid(0, 0 [pid 6207] <... symlink resumed>) = 0 [pid 6205] close(12 [pid 6208] <... setpgid resumed>) = 0 [pid 6207] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6205] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... restart_syscall resumed>) = 0 [pid 6205] close(13 [pid 6207] <... openat resumed>) = 3 [pid 6205] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6207] write(3, "1000", 4 [pid 6205] close(14 [pid 6208] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 6207] <... write resumed>) = 4 [pid 6205] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] umount2("./64", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6207] close(3 [pid 6205] close(15 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6208] <... symlink resumed>) = 0 [pid 6208] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 6207] <... close resumed>) = 0 [pid 6205] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] openat(AT_FDCWD, "./64", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6207] read(200, [pid 6205] close(16 [pid 6208] <... symlink resumed>) = 0 [pid 6205] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6208] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 6207] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6205] close(17 [pid 5876] <... openat resumed>) = 3 [pid 6207] symlink("/dev/binderfs", "./binderfs" [pid 6208] <... symlink resumed>) = 0 [pid 6205] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(3, "", [pid 6207] <... symlink resumed>) = 0 [pid 6208] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6207] write(1, "executing program\n", 18 [pid 5876] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 executing program [pid 6208] <... openat resumed>) = 3 [pid 6207] <... write resumed>) = 18 [pid 6205] close(18 [pid 5876] getdents64(3, [pid 6205] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6208] write(3, "1000", 4 [pid 6207] perf_event_open( [pid 6205] close(19 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6208] <... write resumed>) = 4 [pid 6205] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6208] close(3 [pid 6205] close(20 [pid 5876] umount2("./64/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6208] <... close resumed>) = 0 [pid 6205] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6208] read(200, [pid 6205] close(21 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6208] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6205] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] newfstatat(AT_FDCWD, "./64/binderfs", [pid 6208] symlink("/dev/binderfs", "./binderfs" [pid 6205] close(22) = -1 EBADF (Bad file descriptor) [pid 6208] <... symlink resumed>) = 0 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 executing program [pid 6208] write(1, "executing program\n", 18 [pid 6205] close(23 [pid 5876] unlink("./64/binderfs" [pid 6208] <... write resumed>) = 18 [pid 6205] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 6208] perf_event_open( [pid 6207] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6206] <... close resumed>) = 0 [pid 6205] close(24 [pid 5876] umount2("./64/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6205] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6205] close(25 [pid 5876] newfstatat(AT_FDCWD, "./64/cgroup.net", [pid 6208] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6207] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6206] close(4 [pid 6205] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6208] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6207] <... bpf resumed>) = 4 [pid 6205] close(26 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6206] <... close resumed>) = 0 [pid 6205] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6205] close(27 [pid 5876] unlink("./64/cgroup.net" [pid 6207] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6205] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6208] <... bpf resumed>) = 4 [pid 6206] close(5 [pid 6205] close(28 [pid 5876] <... unlink resumed>) = 0 [pid 6205] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6205] close(29) = -1 EBADF (Bad file descriptor) [pid 6205] exit_group(0) = ? [pid 6208] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6207] <... bpf resumed>) = 5 [pid 6206] <... close resumed>) = 0 [pid 5876] umount2("./64/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6208] <... bpf resumed>) = 5 [pid 6205] +++ exited with 0 +++ [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6206] close(6 [pid 5876] newfstatat(AT_FDCWD, "./64/cgroup.cpu", [pid 6208] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6207] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5876] unlink("./64/cgroup.cpu" [pid 5873] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=65, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5873] restart_syscall(<... resuming interrupted clone ...> [pid 6208] <... bpf resumed>) = 6 [pid 6207] <... bpf resumed>) = 6 [pid 6206] <... close resumed>) = 0 [pid 5876] <... unlink resumed>) = 0 [pid 6208] perf_event_open( [pid 5876] umount2("./64/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... restart_syscall resumed>) = 0 [pid 6208] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6207] perf_event_open( [pid 6206] close(7 [pid 5876] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6208] close(3 [pid 6207] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6208] <... close resumed>) = 0 [pid 6206] <... close resumed>) = 0 [pid 5876] newfstatat(AT_FDCWD, "./64/cgroup", [pid 6208] close(4 [pid 6207] close(3 [pid 6206] close(8 [pid 6208] <... close resumed>) = 0 [pid 5876] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] umount2("./63", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6208] close(5 [pid 6206] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6208] <... close resumed>) = 0 [pid 5876] unlink("./64/cgroup" [pid 6206] close(9 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6208] close(6 [pid 6206] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... unlink resumed>) = 0 [pid 5873] openat(AT_FDCWD, "./63", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6206] close(10 [pid 5873] <... openat resumed>) = 3 [pid 6206] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] getdents64(3, [pid 5873] newfstatat(3, "", [pid 6206] close(11 [pid 5876] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6206] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] close(3 [pid 5873] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6206] close(12) = -1 EBADF (Bad file descriptor) [pid 5876] <... close resumed>) = 0 [pid 5873] getdents64(3, [pid 6208] <... close resumed>) = 0 [pid 6206] close(13 [pid 5876] rmdir("./64" [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6208] close(7 [pid 6206] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6208] <... close resumed>) = 0 [pid 5876] <... rmdir resumed>) = 0 [pid 5873] umount2("./63/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6208] close(8) = -1 EBADF (Bad file descriptor) [pid 6208] close(9) = -1 EBADF (Bad file descriptor) [pid 6206] close(14 [pid 5876] mkdir("./65", 0777 [pid 6208] close(10 [pid 6206] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6208] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6208] close(11 [pid 5873] newfstatat(AT_FDCWD, "./63/binderfs", [pid 6208] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] <... mkdir resumed>) = 0 [pid 6208] close(12 [pid 6206] close(15 [pid 6208] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6206] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5876] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6208] close(13 [pid 6206] close(16 [pid 5873] unlink("./63/binderfs" [pid 6208] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6208] close(14) = -1 EBADF (Bad file descriptor) [pid 6208] close(15) = -1 EBADF (Bad file descriptor) [pid 6208] close(16) = -1 EBADF (Bad file descriptor) [pid 6208] close(17) = -1 EBADF (Bad file descriptor) [pid 6208] close(18) = -1 EBADF (Bad file descriptor) [pid 6208] close(19./strace-static-x86_64: Process 6209 attached ) = -1 EBADF (Bad file descriptor) [pid 6209] set_robust_list(0x5555947fb660, 24) = 0 [pid 6208] close(20 [pid 6209] chdir("./65" [pid 6206] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... unlink resumed>) = 0 [pid 6209] <... chdir resumed>) = 0 [pid 6208] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6206] close(17 [pid 5876] <... clone resumed>, child_tidptr=0x5555947fb650) = 67 [pid 5873] umount2("./63/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6209] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6208] close(21 [pid 6209] <... prctl resumed>) = 0 [pid 6208] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6209] setpgid(0, 0 [pid 6208] close(22 [pid 6207] <... close resumed>) = 0 [pid 6206] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6209] <... setpgid resumed>) = 0 [pid 6208] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6208] close(23 [pid 6207] close(4 [pid 6206] close(18 [pid 5873] newfstatat(AT_FDCWD, "./63/cgroup.net", [pid 6209] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 6208] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6207] <... close resumed>) = 0 [pid 6206] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6208] close(24 [pid 6207] close(5 [pid 6206] close(19 [pid 5873] unlink("./63/cgroup.net" [pid 6209] <... symlink resumed>) = 0 [pid 6208] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6207] <... close resumed>) = 0 [pid 6206] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6209] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 6208] close(25 [pid 6207] close(6 [pid 6206] close(20 [pid 5873] <... unlink resumed>) = 0 [pid 6209] <... symlink resumed>) = 0 [pid 6208] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6206] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6208] close(26 [pid 6209] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 6208] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6209] <... symlink resumed>) = 0 [pid 6208] close(27) = -1 EBADF (Bad file descriptor) [pid 6209] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6208] close(28 [pid 6209] <... openat resumed>) = 3 [pid 6207] <... close resumed>) = 0 [pid 6206] close(21 [pid 6208] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] umount2("./63/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6209] write(3, "1000", 4 [pid 6208] close(29 [pid 6207] close(7 [pid 6206] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6209] <... write resumed>) = 4 [pid 6208] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6206] close(22 [pid 5873] newfstatat(AT_FDCWD, "./63/cgroup.cpu", [pid 6209] close(3 [pid 6208] exit_group(0 [pid 6207] <... close resumed>) = 0 [pid 6206] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6208] <... exit_group resumed>) = ? [pid 6207] close(8 [pid 6206] close(23 [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6209] <... close resumed>) = 0 [pid 6207] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6206] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] unlink("./63/cgroup.cpu" [pid 6209] read(200, [pid 6207] close(9 [pid 6206] close(24 [pid 5873] <... unlink resumed>) = 0 [pid 6209] <... read resumed>0x7ffe3f41b0b0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 6207] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6206] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6209] symlink("/dev/binderfs", "./binderfs" [pid 6208] +++ exited with 0 +++ [pid 6207] close(10 [pid 6206] close(25 [pid 5873] umount2("./63/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6206] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6207] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6206] close(26 [pid 5873] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6206] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=66, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5873] newfstatat(AT_FDCWD, "./63/cgroup", [pid 6209] <... symlink resumed>) = 0 [pid 6207] close(11 [pid 6206] close(27 [pid 5877] umount2("./64", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6209] write(1, "executing program\n", 18 [pid 6207] <... close resumed>) = -1 EBADF (Bad file descriptor) executing program [pid 6206] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6209] <... write resumed>) = 18 [pid 6207] close(12 [pid 6206] close(28 [pid 6207] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5873] unlink("./63/cgroup" [pid 6206] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6207] close(13 [pid 6206] close(29 [pid 6207] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6206] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] openat(AT_FDCWD, "./64", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6206] exit_group(0 [pid 5877] <... openat resumed>) = 3 [pid 5877] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5877] getdents64(3, [pid 6209] perf_event_open( [pid 6207] close(14 [pid 6206] <... exit_group resumed>) = ? [pid 5877] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 5873] <... unlink resumed>) = 0 [pid 6207] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./64/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6207] close(15 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] getdents64(3, [pid 6207] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./64/binderfs", [pid 6207] close(16 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] <... getdents64 resumed>0x5555947fc6f0 /* 0 entries */, 32768) = 0 [pid 6207] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./64/binderfs" [pid 6207] close(17 [pid 5877] <... unlink resumed>) = 0 [pid 6207] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./64/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5873] close(3 [pid 5877] newfstatat(AT_FDCWD, "./64/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5877] unlink("./64/cgroup.net") = 0 [pid 5877] umount2("./64/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6209] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=330, sample_period=4, sample_type=PERF_SAMPLE_TIME|PERF_SAMPLE_CALLCHAIN|PERF_SAMPLE_STREAM_ID, read_format=PERF_FORMAT_TOTAL_TIME_RUNNING|PERF_FORMAT_ID|PERF_FORMAT_GROUP, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_OUTPUT|PERF_FLAG_FD_CLOEXEC) = 3 [pid 6207] close(18 [pid 6206] +++ exited with 0 +++ [pid 5873] <... close resumed>) = 0 [pid 6207] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6209] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_STACK_TRACE, key_size=4, value_size=128, max_entries=4, map_flags=BPF_F_RDONLY|BPF_F_STACK_BUILD_ID, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80 [pid 6207] close(19 [pid 5874] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=62, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5873] rmdir("./63" [pid 6209] <... bpf resumed>) = 4 [pid 6207] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5873] <... rmdir resumed>) = 0 [pid 6209] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=8, insns=0x200000000080, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(4, 16, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=0x2d /* BPF_??? */, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148 [pid 6207] close(20 [pid 5877] newfstatat(AT_FDCWD, "./64/cgroup.cpu", [pid 5873] mkdir("./64", 0777 [pid 6207] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] umount2("./60", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5873] <... mkdir resumed>) = 0 [pid 6207] close(21 [pid 5877] unlink("./64/cgroup.cpu" [pid 5873] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6209] <... bpf resumed>) = 5 [pid 6207] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] <... unlink resumed>) = 0 [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6207] close(22 [pid 5874] openat(AT_FDCWD, "./60", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6207] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 6210 attached [pid 6207] close(23 [pid 6209] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=5}}, 24 [pid 6207] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] umount2("./64/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5874] <... openat resumed>) = 3 [pid 5873] <... clone resumed>, child_tidptr=0x5555947fb650) = 66 [pid 6210] set_robust_list(0x5555947fb660, 24 [pid 6209] <... bpf resumed>) = 6 [pid 6207] close(24 [pid 5877] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6210] <... set_robust_list resumed>) = 0 [pid 6209] perf_event_open( [pid 6207] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] newfstatat(AT_FDCWD, "./64/cgroup", [pid 5874] newfstatat(3, "", [pid 6210] chdir("./64" [pid 6209] <... perf_event_open resumed>{type=PERF_TYPE_SOFTWARE, size=PERF_ATTR_SIZE_VER7, config=PERF_COUNT_SW_CPU_CLOCK, sample_period=19761, sample_type=0, read_format=PERF_FORMAT_TOTAL_TIME_ENABLED, precise_ip=0 /* arbitrary skid */, ...}, 0, -1, -1, PERF_FLAG_FD_NO_GROUP|PERF_FLAG_FD_OUTPUT) = 7 [pid 6207] close(25 [pid 5877] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5874] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 6210] <... chdir resumed>) = 0 [pid 6207] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5877] unlink("./64/cgroup" [pid 5874] getdents64(3, [pid 6210] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6207] close(26 [pid 6210] <... prctl resumed>) = 0 [pid 6207] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] <... getdents64 resumed>0x5555947fc6f0 /* 6 entries */, 32768) = 176 [pid 6210] setpgid(0, 0 [pid 6207] close(27 [pid 6210] <... setpgid resumed>) = 0 [pid 6207] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5874] umount2("./60/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6210] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 6207] close(28) = -1 EBADF (Bad file descriptor) [pid 5874] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6210] <... symlink resumed>) = 0 [pid 6207] close(29) = -1 EBADF (Bad file descriptor) [pid 6207] exit_group(0 [pid 6210] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5877] <... unlink resumed>) = 0 [ 110.294754][ C1] ================================================================== [ 110.302867][ C1] BUG: KASAN: slab-out-of-bounds in __bpf_get_stackid+0x677/0xcf0 [ 110.310747][ C1] Write of size 8 at addr ffff8880278f8248 by task syz-executor323/6209 [ 110.319090][ C1] [ 110.321450][ C1] CPU: 1 UID: 0 PID: 6209 Comm: syz-executor323 Not tainted 6.17.0-rc1-syzkaller-ge4414b01c1cd #0 PREEMPT(full) [ 110.321472][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 110.321490][ C1] Call Trace: [ 110.321498][ C1] [ 110.321505][ C1] dump_stack_lvl+0x189/0x250 [ 110.321529][ C1] ? __virt_addr_valid+0x1c8/0x5c0 [ 110.321552][ C1] ? rcu_is_watching+0x15/0xb0 [ 110.321568][ C1] ? __kasan_check_byte+0x12/0x40 [ 110.321593][ C1] ? __pfx_dump_stack_lvl+0x10/0x10 [ 110.321625][ C1] ? rcu_is_watching+0x15/0xb0 [ 110.321642][ C1] ? lock_release+0x4b/0x3e0 [ 110.321670][ C1] ? __virt_addr_valid+0x1c8/0x5c0 [ 110.321691][ C1] ? __virt_addr_valid+0x4a5/0x5c0 [ 110.321713][ C1] print_report+0xca/0x240 [ 110.321730][ C1] ? __bpf_get_stackid+0x677/0xcf0 [ 110.321755][ C1] kasan_report+0x118/0x150 [ 110.321780][ C1] ? __bpf_get_stackid+0x677/0xcf0 [ 110.321808][ C1] ? bpf_prog_b724608cae728045+0x27/0x2f [ 110.321827][ C1] __bpf_get_stackid+0x677/0xcf0 [ 110.321859][ C1] ? bpf_prog_b724608cae728045+0x27/0x2f [ 110.321873][ C1] bpf_get_stackid_raw_tp+0x196/0x210 [ 110.321901][ C1] bpf_prog_b724608cae728045+0x27/0x2f [ 110.321915][ C1] bpf_trace_run2+0x284/0x4b0 [ 110.321937][ C1] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 110.321957][ C1] ? bpf_trace_run2+0x186/0x4b0 [ 110.321979][ C1] ? __pfx_bpf_trace_run2+0x10/0x10 [ 110.322001][ C1] ? slab_free_after_rcu_debug+0x60/0x2a0 [ 110.322022][ C1] ? rcu_core+0xc37/0x1770 [ 110.322048][ C1] ? rcu_core+0xc37/0x1770 [ 110.322072][ C1] ? slab_free_after_rcu_debug+0x60/0x2a0 [ 110.322090][ C1] kfree+0x3a0/0x440 [ 110.322112][ C1] ? rcu_core+0xc37/0x1770 [ 110.322137][ C1] slab_free_after_rcu_debug+0x60/0x2a0 [ 110.322155][ C1] ? __pfx_slab_free_after_rcu_debug+0x10/0x10 [ 110.322173][ C1] ? rcu_core+0xc37/0x1770 [ 110.322198][ C1] rcu_core+0xca8/0x1770 [ 110.322223][ C1] ? clockevents_program_event+0x24d/0x360 [ 110.322254][ C1] ? __pfx_rcu_core+0x10/0x10 [ 110.322280][ C1] ? __irq_exit_rcu+0xd8/0x1f0 [ 110.322296][ C1] ? __pfx___irq_exit_rcu+0x10/0x10 [ 110.322325][ C1] handle_softirqs+0x283/0x870 [ 110.322344][ C1] ? __irq_exit_rcu+0xca/0x1f0 [ 110.322362][ C1] ? __pfx_handle_softirqs+0x10/0x10 [ 110.322380][ C1] ? irqtime_account_irq+0xb6/0x1c0 [ 110.322404][ C1] __irq_exit_rcu+0xca/0x1f0 [ 110.322419][ C1] ? __pfx___irq_exit_rcu+0x10/0x10 [ 110.322439][ C1] irq_exit_rcu+0x9/0x30 [ 110.322454][ C1] sysvec_apic_timer_interrupt+0xa6/0xc0 [ 110.322484][ C1] [ 110.322489][ C1] [ 110.322496][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 110.322515][ C1] RIP: 0010:finish_task_switch+0x26b/0x950 [ 110.322540][ C1] Code: 0f 84 3c 01 00 00 48 85 db 0f 85 63 01 00 00 0f 1f 44 00 00 4c 8b 75 d0 4c 89 e7 e8 cf b7 ea 09 e8 5a 3f 36 00 fb 4c 8b 65 c0 <49> 8d bc 24 18 16 00 00 48 89 f8 48 c1 e8 03 42 0f b6 04 28 84 c0 [ 110.322555][ C1] RSP: 0018:ffffc900046efa78 EFLAGS: 00000286 [ 110.322572][ C1] RAX: 8ec22c8d295ccf00 RBX: 0000000000000000 RCX: 8ec22c8d295ccf00 [ 110.322584][ C1] RDX: 0000000000000000 RSI: ffffffff8d9b6d6c RDI: ffffffff8be33380 [ 110.322596][ C1] RBP: ffffc900046efad0 R08: ffffffff8fa37e37 R09: 1ffffffff1f46fc6 [ 110.322609][ C1] R10: dffffc0000000000 R11: fffffbfff1f46fc7 R12: ffff88802e22da00 [ 110.322622][ C1] R13: dffffc0000000000 R14: ffff88807ad1da00 R15: ffff8880b873ab58 [ 110.322643][ C1] ? finish_task_switch+0x266/0x950 [ 110.322670][ C1] __schedule+0x17a0/0x4cc0 [ 110.322697][ C1] ? lockdep_hardirqs_on+0x9c/0x150 [ 110.322722][ C1] ? schedule+0x91/0x360 [ 110.322742][ C1] ? __pfx___schedule+0x10/0x10 [ 110.322763][ C1] ? lock_acquire+0x175/0x360 [ 110.322792][ C1] ? schedule+0x91/0x360 [ 110.322813][ C1] schedule+0x165/0x360 [ 110.322834][ C1] ptrace_stop+0x575/0x940 [ 110.322864][ C1] ptrace_notify+0x20f/0x2c0 [ 110.322880][ C1] ? __pfx_ptrace_notify+0x10/0x10 [ 110.322901][ C1] ? __pfx_perf_trace_preemptirq_template+0x10/0x10 [ 110.322927][ C1] ? rcu_is_watching+0x15/0xb0 [ 110.322945][ C1] syscall_exit_work+0xc6/0x1d0 [ 110.322973][ C1] do_syscall_64+0x2ad/0x3b0 [ 110.322998][ C1] ? lockdep_hardirqs_on+0x9c/0x150 [ 110.323020][ C1] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 110.323036][ C1] ? clear_bhb_loop+0x60/0xb0 [ 110.323055][ C1] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 110.323071][ C1] RIP: 0033:0x7ff5f2c6dd09 [ 110.323086][ C1] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 1a 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 110.323100][ C1] RSP: 002b:00007ffe3f41b4a8 EFLAGS: 00000246 ORIG_RAX: 000000000000012a [ 110.323116][ C1] RAX: 0000000000000007 RBX: 0000000000000003 RCX: 00007ff5f2c6dd09 [ 110.323127][ C1] RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 00002000000003c0 [ 110.323138][ C1] RBP: 0000000000000000 R08: 0000000000000003 R09: ffffffffffffffff [ 110.323149][ C1] R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 [ 110.323160][ C1] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 110.323177][ C1] [ 110.323183][ C1] [ 110.824924][ C1] Allocated by task 6209: [ 110.829260][ C1] kasan_save_track+0x3e/0x80 [ 110.833976][ C1] __kasan_kmalloc+0x93/0xb0 [ 110.838590][ C1] __kmalloc_node_noprof+0x276/0x4e0 [ 110.843892][ C1] bpf_map_area_alloc+0x64/0x180 [ 110.848851][ C1] prealloc_elems_and_freelist+0x86/0x1d0 [ 110.854585][ C1] stack_map_alloc+0x33f/0x4c0 [ 110.859370][ C1] map_create+0xaa0/0x14d0 [ 110.863801][ C1] __sys_bpf+0x60f/0x870 [ 110.868061][ C1] __x64_sys_bpf+0x7c/0x90 [ 110.872490][ C1] do_syscall_64+0xfa/0x3b0 [ 110.877012][ C1] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 110.882939][ C1] [ 110.885268][ C1] The buggy address belongs to the object at ffff8880278f8000 [ 110.885268][ C1] which belongs to the cache kmalloc-cg-1k of size 1024 [ 110.899596][ C1] The buggy address is located 8 bytes to the right of [ 110.899596][ C1] allocated 576-byte region [ffff8880278f8000, ffff8880278f8240) [ 110.914128][ C1] [ 110.916478][ C1] The buggy address belongs to the physical page: [ 110.922922][ C1] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x278f8 [ 110.931730][ C1] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 110.940237][ C1] memcg:ffff8880784a3c01 [ 110.944482][ C1] ksm flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff) [ 110.952396][ C1] page_type: f5(slab) [ 110.956394][ C1] raw: 00fff00000000040 ffff88801a44b280 ffffea0000a02000 0000000000000003 [ 110.964987][ C1] raw: 0000000000000000 0000000080100010 00000000f5000000 ffff8880784a3c01 [ 110.973586][ C1] head: 00fff00000000040 ffff88801a44b280 ffffea0000a02000 0000000000000003 [ 110.982272][ C1] head: 0000000000000000 0000000080100010 00000000f5000000 ffff8880784a3c01 [ 110.990956][ C1] head: 00fff00000000003 ffffea00009e3e01 00000000ffffffff 00000000ffffffff [ 110.999643][ C1] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 [ 111.008322][ C1] page dumped because: kasan: bad access detected [ 111.014790][ C1] page_owner tracks the page as allocated [ 111.020518][ C1] page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5526, tgid 5526 (dhcpcd), ts 63739366219, free_ts 62535431936 [ 111.041375][ C1] post_alloc_hook+0x240/0x2a0 [ 111.046168][ C1] get_page_from_freelist+0x21e4/0x22c0 [ 111.051737][ C1] __alloc_frozen_pages_noprof+0x181/0x370 [ 111.057571][ C1] alloc_pages_mpol+0x232/0x4a0 [ 111.062460][ C1] allocate_slab+0x8a/0x370 [ 111.066977][ C1] ___slab_alloc+0xbeb/0x1410 [ 111.071675][ C1] __kmalloc_node_track_caller_noprof+0x2f8/0x4e0 [ 111.078104][ C1] kmalloc_reserve+0x136/0x290 [ 111.082898][ C1] __alloc_skb+0x142/0x2d0 [ 111.087343][ C1] alloc_skb_with_frags+0xca/0x890 [ 111.092460][ C1] sock_alloc_send_pskb+0x857/0x990 [ 111.097679][ C1] unix_dgram_sendmsg+0x461/0x1850 [ 111.102808][ C1] __sock_sendmsg+0x21c/0x270 [ 111.107509][ C1] sock_write_iter+0x258/0x330 [ 111.112290][ C1] do_iter_readv_writev+0x619/0x8b0 [ 111.117505][ C1] vfs_writev+0x31a/0x960 [ 111.121849][ C1] page last free pid 5655 tgid 5655 stack trace: [ 111.128184][ C1] __free_frozen_pages+0xbc4/0xd30 [ 111.133330][ C1] __put_partials+0x156/0x1a0 [ 111.138011][ C1] put_cpu_partial+0x17c/0x250 [ 111.142784][ C1] __slab_free+0x2d5/0x3c0 [ 111.147218][ C1] qlist_free_all+0x97/0x140 [ 111.151819][ C1] kasan_quarantine_reduce+0x148/0x160 [ 111.157293][ C1] __kasan_slab_alloc+0x22/0x80 [ 111.162158][ C1] kmem_cache_alloc_noprof+0x1c1/0x3c0 [ 111.167632][ C1] vm_area_alloc+0x24/0x140 [ 111.172153][ C1] mmap_region+0xdc7/0x20c0 [ 111.176667][ C1] do_mmap+0xc45/0x10d0 [ 111.180836][ C1] vm_mmap_pgoff+0x2a6/0x4d0 [ 111.185436][ C1] ksys_mmap_pgoff+0x51f/0x760 [ 111.190219][ C1] do_syscall_64+0xfa/0x3b0 [ 111.194735][ C1] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 111.200635][ C1] [ 111.202962][ C1] Memory state around the buggy address: [ 111.208611][ C1] ffff8880278f8100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 111.216680][ C1] ffff8880278f8180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 111.224744][ C1] >ffff8880278f8200: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 111.232809][ C1] ^ [ 111.239258][ C1] ffff8880278f8280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 111.247328][ C1] ffff8880278f8300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 111.255390][ C1] ================================================================== [ 111.263674][ C1] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 111.270902][ C1] CPU: 1 UID: 0 PID: 6209 Comm: syz-executor323 Not tainted 6.17.0-rc1-syzkaller-ge4414b01c1cd #0 PREEMPT(full) [ 111.282811][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 111.292891][ C1] Call Trace: [ 111.296181][ C1] [ 111.299035][ C1] dump_stack_lvl+0x99/0x250 [ 111.303645][ C1] ? __asan_memcpy+0x40/0x70 [ 111.308250][ C1] ? __pfx_dump_stack_lvl+0x10/0x10 [ 111.313471][ C1] ? __pfx__printk+0x10/0x10 [ 111.318088][ C1] vpanic+0x281/0x750 [ 111.322090][ C1] ? __pfx___irq_exit_rcu+0x10/0x10 [ 111.327330][ C1] ? __pfx_vpanic+0x10/0x10 [ 111.331852][ C1] ? irqentry_exit+0x74/0x90 [ 111.336458][ C1] ? lockdep_hardirqs_on+0x9c/0x150 [ 111.341678][ C1] panic+0xb9/0xc0 [ 111.345413][ C1] ? __pfx_panic+0x10/0x10 [ 111.349850][ C1] ? _raw_spin_unlock_irqrestore+0xa8/0x110 [ 111.355768][ C1] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 111.362120][ C1] ? __bpf_get_stackid+0x677/0xcf0 [ 111.367255][ C1] check_panic_on_warn+0x89/0xb0 [ 111.372210][ C1] ? __bpf_get_stackid+0x677/0xcf0 [ 111.377338][ C1] end_report+0x78/0x160 [ 111.381598][ C1] kasan_report+0x129/0x150 [ 111.386118][ C1] ? __bpf_get_stackid+0x677/0xcf0 [ 111.391251][ C1] ? bpf_prog_b724608cae728045+0x27/0x2f [ 111.396901][ C1] __bpf_get_stackid+0x677/0xcf0 [ 111.401866][ C1] ? bpf_prog_b724608cae728045+0x27/0x2f [ 111.407504][ C1] bpf_get_stackid_raw_tp+0x196/0x210 [ 111.412897][ C1] bpf_prog_b724608cae728045+0x27/0x2f [ 111.418364][ C1] bpf_trace_run2+0x284/0x4b0 [ 111.423060][ C1] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 111.428445][ C1] ? bpf_trace_run2+0x186/0x4b0 [ 111.433315][ C1] ? __pfx_bpf_trace_run2+0x10/0x10 [ 111.438525][ C1] ? slab_free_after_rcu_debug+0x60/0x2a0 [ 111.444259][ C1] ? rcu_core+0xc37/0x1770 [ 111.448728][ C1] ? rcu_core+0xc37/0x1770 [ 111.453165][ C1] ? slab_free_after_rcu_debug+0x60/0x2a0 [ 111.458898][ C1] kfree+0x3a0/0x440 [ 111.462816][ C1] ? rcu_core+0xc37/0x1770 [ 111.467248][ C1] slab_free_after_rcu_debug+0x60/0x2a0 [ 111.472813][ C1] ? __pfx_slab_free_after_rcu_debug+0x10/0x10 [ 111.478978][ C1] ? rcu_core+0xc37/0x1770 [ 111.483418][ C1] rcu_core+0xca8/0x1770 [ 111.488213][ C1] ? clockevents_program_event+0x24d/0x360 [ 111.494077][ C1] ? __pfx_rcu_core+0x10/0x10 [ 111.498787][ C1] ? __irq_exit_rcu+0xd8/0x1f0 [ 111.503693][ C1] ? __pfx___irq_exit_rcu+0x10/0x10 [ 111.508915][ C1] handle_softirqs+0x283/0x870 [ 111.513692][ C1] ? __irq_exit_rcu+0xca/0x1f0 [ 111.518473][ C1] ? __pfx_handle_softirqs+0x10/0x10 [ 111.523778][ C1] ? irqtime_account_irq+0xb6/0x1c0 [ 111.529015][ C1] __irq_exit_rcu+0xca/0x1f0 [ 111.533623][ C1] ? __pfx___irq_exit_rcu+0x10/0x10 [ 111.538925][ C1] irq_exit_rcu+0x9/0x30 [ 111.543181][ C1] sysvec_apic_timer_interrupt+0xa6/0xc0 [ 111.548855][ C1] [ 111.551806][ C1] [ 111.554749][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 111.560840][ C1] RIP: 0010:finish_task_switch+0x26b/0x950 [ 111.566670][ C1] Code: 0f 84 3c 01 00 00 48 85 db 0f 85 63 01 00 00 0f 1f 44 00 00 4c 8b 75 d0 4c 89 e7 e8 cf b7 ea 09 e8 5a 3f 36 00 fb 4c 8b 65 c0 <49> 8d bc 24 18 16 00 00 48 89 f8 48 c1 e8 03 42 0f b6 04 28 84 c0 [ 111.586294][ C1] RSP: 0018:ffffc900046efa78 EFLAGS: 00000286 [ 111.592383][ C1] RAX: 8ec22c8d295ccf00 RBX: 0000000000000000 RCX: 8ec22c8d295ccf00 [ 111.600366][ C1] RDX: 0000000000000000 RSI: ffffffff8d9b6d6c RDI: ffffffff8be33380 [ 111.608349][ C1] RBP: ffffc900046efad0 R08: ffffffff8fa37e37 R09: 1ffffffff1f46fc6 [ 111.616336][ C1] R10: dffffc0000000000 R11: fffffbfff1f46fc7 R12: ffff88802e22da00 [ 111.624330][ C1] R13: dffffc0000000000 R14: ffff88807ad1da00 R15: ffff8880b873ab58 [ 111.632329][ C1] ? finish_task_switch+0x266/0x950 [ 111.637557][ C1] __schedule+0x17a0/0x4cc0 [ 111.642087][ C1] ? lockdep_hardirqs_on+0x9c/0x150 [ 111.647396][ C1] ? schedule+0x91/0x360 [ 111.651656][ C1] ? __pfx___schedule+0x10/0x10 [ 111.656522][ C1] ? lock_acquire+0x175/0x360 [ 111.661228][ C1] ? schedule+0x91/0x360 [ 111.665489][ C1] schedule+0x165/0x360 [ 111.669665][ C1] ptrace_stop+0x575/0x940 [ 111.674103][ C1] ptrace_notify+0x20f/0x2c0 [ 111.678707][ C1] ? __pfx_ptrace_notify+0x10/0x10 [ 111.683827][ C1] ? __pfx_perf_trace_preemptirq_template+0x10/0x10 [ 111.690435][ C1] ? rcu_is_watching+0x15/0xb0 [ 111.695217][ C1] syscall_exit_work+0xc6/0x1d0 [ 111.700099][ C1] do_syscall_64+0x2ad/0x3b0 [ 111.704716][ C1] ? lockdep_hardirqs_on+0x9c/0x150 [ 111.709938][ C1] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 111.716017][ C1] ? clear_bhb_loop+0x60/0xb0 [ 111.720714][ C1] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 111.726622][ C1] RIP: 0033:0x7ff5f2c6dd09 [ 111.731051][ C1] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 1a 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 111.750757][ C1] RSP: 002b:00007ffe3f41b4a8 EFLAGS: 00000246 ORIG_RAX: 000000000000012a [ 111.759189][ C1] RAX: 0000000000000007 RBX: 0000000000000003 RCX: 00007ff5f2c6dd09 [ 111.767174][ C1] RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 00002000000003c0 [ 111.775169][ C1] RBP: 0000000000000000 R08: 0000000000000003 R09: ffffffffffffffff [ 111.783150][ C1] R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 [ 111.791128][ C1] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 111.799114][ C1] [ 111.802491][ C1] Kernel Offset: disabled [ 111.806819][ C1] Rebooting in 86400 seconds..