./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor356980215 <...> Warning: Permanently added '10.128.0.203' (ED25519) to the list of known hosts. execve("./syz-executor356980215", ["./syz-executor356980215"], 0x7ffe1b51e970 /* 10 vars */) = 0 brk(NULL) = 0x555593835000 brk(0x555593835d00) = 0x555593835d00 arch_prctl(ARCH_SET_FS, 0x555593835380) = 0 set_tid_address(0x555593835650) = 5821 set_robust_list(0x555593835660, 24) = 0 rseq(0x555593835ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor356980215", 4096) = 27 getrandom("\x8b\xb9\x7f\x39\xcd\xa2\xbd\x54", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555593835d00 brk(0x555593856d00) = 0x555593856d00 brk(0x555593857000) = 0x555593857000 mprotect(0x7f2dbbf70000, 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 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555593835650) = 5822 ./strace-static-x86_64: Process 5822 attached [pid 5821] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5822] set_robust_list(0x555593835660, 24./strace-static-x86_64: Process 5823 attached [pid 5821] <... clone resumed>, child_tidptr=0x555593835650) = 5823 [pid 5822] <... set_robust_list resumed>) = 0 [pid 5821] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5823] set_robust_list(0x555593835660, 24) = 0 [pid 5823] mkdir("./syzkaller.KZXACN", 0700 [pid 5822] mkdir("./syzkaller.IcJWWa", 0700./strace-static-x86_64: Process 5824 attached [pid 5821] <... clone resumed>, child_tidptr=0x555593835650) = 5824 [pid 5824] set_robust_list(0x555593835660, 24 [pid 5821] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5823] <... mkdir resumed>) = 0 [pid 5822] <... mkdir resumed>) = 0 [pid 5824] <... set_robust_list resumed>) = 0 [pid 5823] chmod("./syzkaller.KZXACN", 0777 [pid 5822] chmod("./syzkaller.IcJWWa", 0777./strace-static-x86_64: Process 5825 attached [pid 5824] mkdir("./syzkaller.nDyGUX", 0700 [pid 5823] <... chmod resumed>) = 0 [pid 5821] <... clone resumed>, child_tidptr=0x555593835650) = 5825 [pid 5821] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5825] set_robust_list(0x555593835660, 24 [pid 5822] <... chmod resumed>) = 0 [pid 5825] <... set_robust_list resumed>) = 0 [pid 5823] chdir("./syzkaller.KZXACN" [pid 5822] chdir("./syzkaller.IcJWWa" [pid 5823] <... chdir resumed>) = 0 ./strace-static-x86_64: Process 5826 attached [pid 5822] <... chdir resumed>) = 0 [pid 5825] mkdir("./syzkaller.wVkM6A", 0700 [pid 5824] <... mkdir resumed>) = 0 [pid 5823] mkdir("./0", 0777 [pid 5822] mkdir("./0", 0777 [pid 5826] set_robust_list(0x555593835660, 24) = 0 [pid 5824] chmod("./syzkaller.nDyGUX", 0777 [pid 5821] <... clone resumed>, child_tidptr=0x555593835650) = 5826 [pid 5826] mkdir("./syzkaller.6xhj0K", 0700 [pid 5825] <... mkdir resumed>) = 0 [pid 5823] <... mkdir resumed>) = 0 [pid 5824] <... chmod resumed>) = 0 [pid 5822] <... mkdir resumed>) = 0 [pid 5826] <... mkdir resumed>) = 0 [pid 5824] chdir("./syzkaller.nDyGUX" [pid 5825] chmod("./syzkaller.wVkM6A", 0777 [pid 5823] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5822] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5824] <... chdir resumed>) = 0 [pid 5826] chmod("./syzkaller.6xhj0K", 0777 [pid 5825] <... chmod resumed>) = 0 [pid 5824] mkdir("./0", 0777 [pid 5826] <... chmod resumed>) = 0 [pid 5822] <... openat resumed>) = 3 [pid 5826] chdir("./syzkaller.6xhj0K" [pid 5825] chdir("./syzkaller.wVkM6A" [pid 5826] <... chdir resumed>) = 0 [pid 5825] <... chdir resumed>) = 0 [pid 5826] mkdir("./0", 0777 [pid 5825] mkdir("./0", 0777 [pid 5823] <... openat resumed>) = 3 [pid 5826] <... mkdir resumed>) = 0 [pid 5825] <... mkdir resumed>) = 0 [pid 5824] <... mkdir resumed>) = 0 [pid 5823] ioctl(3, LOOP_CLR_FD [pid 5822] ioctl(3, LOOP_CLR_FD [pid 5826] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5825] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5824] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5823] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5822] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5826] <... openat resumed>) = 3 [pid 5822] close(3 [pid 5826] ioctl(3, LOOP_CLR_FD [pid 5825] <... openat resumed>) = 3 [pid 5824] <... openat resumed>) = 3 [pid 5823] close(3 [pid 5822] <... close resumed>) = 0 [pid 5822] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5823] <... close resumed>) = 0 [pid 5823] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5828 attached ./strace-static-x86_64: Process 5827 attached [pid 5826] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5825] ioctl(3, LOOP_CLR_FD [pid 5824] ioctl(3, LOOP_CLR_FD [pid 5823] <... clone resumed>, child_tidptr=0x555593835650) = 5827 [pid 5826] close(3) = 0 [pid 5824] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5826] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5824] close(3) = 0 [pid 5824] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5828] set_robust_list(0x555593835660, 24 [pid 5822] <... clone resumed>, child_tidptr=0x555593835650) = 5828 ./strace-static-x86_64: Process 5830 attached ./strace-static-x86_64: Process 5829 attached [pid 5828] <... set_robust_list resumed>) = 0 [pid 5827] set_robust_list(0x555593835660, 24 [pid 5826] <... clone resumed>, child_tidptr=0x555593835650) = 5829 [pid 5825] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5824] <... clone resumed>, child_tidptr=0x555593835650) = 5830 [pid 5830] set_robust_list(0x555593835660, 24 [pid 5829] set_robust_list(0x555593835660, 24 [pid 5828] chdir("./0" [pid 5827] <... set_robust_list resumed>) = 0 [pid 5825] close(3 [pid 5828] <... chdir resumed>) = 0 [pid 5827] chdir("./0" [pid 5825] <... close resumed>) = 0 [pid 5828] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5827] <... chdir resumed>) = 0 [pid 5825] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5830] <... set_robust_list resumed>) = 0 [pid 5829] <... set_robust_list resumed>) = 0 [pid 5828] <... prctl resumed>) = 0 [pid 5827] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5831 attached [pid 5830] chdir("./0" [pid 5829] chdir("./0" [pid 5828] setpgid(0, 0 [pid 5827] <... prctl resumed>) = 0 [pid 5830] <... chdir resumed>) = 0 [pid 5829] <... chdir resumed>) = 0 [pid 5831] set_robust_list(0x555593835660, 24 [pid 5830] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5829] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5828] <... setpgid resumed>) = 0 [pid 5827] setpgid(0, 0 [pid 5831] <... set_robust_list resumed>) = 0 [pid 5830] <... prctl resumed>) = 0 [pid 5829] <... prctl resumed>) = 0 [pid 5830] setpgid(0, 0 [pid 5829] setpgid(0, 0 [pid 5827] <... setpgid resumed>) = 0 [pid 5831] chdir("./0" [pid 5830] <... setpgid resumed>) = 0 [pid 5829] <... setpgid resumed>) = 0 [pid 5829] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5828] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5827] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5831] <... chdir resumed>) = 0 [pid 5830] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5829] <... openat resumed>) = 3 [pid 5827] <... openat resumed>) = 3 [pid 5825] <... clone resumed>, child_tidptr=0x555593835650) = 5831 [pid 5831] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5830] <... openat resumed>) = 3 [pid 5829] write(3, "1000", 4 [pid 5828] <... openat resumed>) = 3 [pid 5827] write(3, "1000", 4 [pid 5831] <... prctl resumed>) = 0 [pid 5830] write(3, "1000", 4 [pid 5829] <... write resumed>) = 4 [pid 5828] write(3, "1000", 4 [pid 5827] <... write resumed>) = 4 [pid 5831] setpgid(0, 0 [pid 5830] <... write resumed>) = 4 [pid 5829] close(3 [pid 5828] <... write resumed>) = 4 [pid 5827] close(3 [pid 5830] close(3 [pid 5829] <... close resumed>) = 0 [pid 5828] close(3 [pid 5827] <... close resumed>) = 0 [pid 5831] <... setpgid resumed>) = 0 [pid 5830] <... close resumed>) = 0 [pid 5829] symlink("/dev/binderfs", "./binderfs" [pid 5828] <... close resumed>) = 0 [pid 5828] symlink("/dev/binderfs", "./binderfs" [pid 5827] symlink("/dev/binderfs", "./binderfs" [pid 5831] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5830] symlink("/dev/binderfs", "./binderfs" [pid 5829] <... symlink resumed>) = 0 [pid 5828] <... symlink resumed>) = 0 [pid 5827] <... symlink resumed>) = 0 [pid 5827] write(1, "executing program\n", 18 [pid 5831] <... openat resumed>) = 3 [pid 5830] <... symlink resumed>) = 0 [pid 5829] write(1, "executing program\n", 18 [pid 5828] write(1, "executing program\n", 18 [pid 5831] write(3, "1000", 4executing program executing program executing program ) = 4 [pid 5830] write(1, "executing program\n", 18 [pid 5829] <... write resumed>) = 18 [pid 5828] <... write resumed>) = 18 executing program executing program [pid 5827] <... write resumed>) = 18 [pid 5831] close(3) = 0 [pid 5831] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5829] memfd_create("syzkaller", 0 [pid 5830] <... write resumed>) = 18 [pid 5830] memfd_create("syzkaller", 0 [pid 5829] <... memfd_create resumed>) = 3 [pid 5831] write(1, "executing program\n", 18) = 18 [pid 5831] memfd_create("syzkaller", 0 [pid 5830] <... memfd_create resumed>) = 3 [pid 5829] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5827] memfd_create("syzkaller", 0 [pid 5829] <... mmap resumed>) = 0x7f2db3a00000 [pid 5830] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2db3a00000 [pid 5828] memfd_create("syzkaller", 0) = 3 [pid 5827] <... memfd_create resumed>) = 3 [pid 5831] <... memfd_create resumed>) = 3 [pid 5828] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5827] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5828] <... mmap resumed>) = 0x7f2db3a00000 [pid 5827] <... mmap resumed>) = 0x7f2db3a00000 [pid 5831] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2db3a00000 [pid 5828] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5831] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5830] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5827] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5829] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5828] <... write resumed>) = 16777216 [pid 5828] munmap(0x7f2db3a00000, 138412032) = 0 [pid 5828] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5828] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5828] close(3) = 0 [pid 5828] close(4) = 0 [pid 5828] mkdir("./file1", 0777) = 0 syzkaller login: [ 86.566192][ T5828] loop0: detected capacity change from 0 to 32768 [pid 5828] mount("/dev/loop0", "./file1", "jfs", MS_NOSUID|MS_MANDLOCK|MS_POSIXACL, "discard=0x00000000000000f4,discard=0x000000000000aff9,errors=continue,nointegrity,iocharset=iso8859-"... [pid 5831] <... write resumed>) = 16777216 [ 86.608252][ T5828] ======================================================= [ 86.608252][ T5828] WARNING: The mand mount option has been deprecated and [ 86.608252][ T5828] and is ignored by this kernel. Remove the mand [ 86.608252][ T5828] option from the mount to silence this warning. [ 86.608252][ T5828] ======================================================= [pid 5831] munmap(0x7f2db3a00000, 138412032) = 0 [pid 5831] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5831] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5831] close(3) = 0 [pid 5831] close(4) = 0 [pid 5831] mkdir("./file1", 0777) = 0 [pid 5828] <... mount resumed>) = 0 [pid 5831] mount("/dev/loop3", "./file1", "jfs", MS_NOSUID|MS_MANDLOCK|MS_POSIXACL, "discard=0x00000000000000f4,discard=0x000000000000aff9,errors=continue,nointegrity,iocharset=iso8859-"... [pid 5828] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [ 86.708151][ T5831] loop3: detected capacity change from 0 to 32768 [pid 5828] chdir("./file1") = 0 [pid 5828] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5828] exit_group(0) = ? [pid 5827] <... write resumed>) = 16777216 [pid 5831] <... mount resumed>) = 0 [pid 5828] +++ exited with 0 +++ [pid 5822] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5828, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=26 /* 0.26 s */} --- [pid 5831] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY [pid 5827] munmap(0x7f2db3a00000, 138412032 [pid 5829] <... write resumed>) = 16777216 [pid 5831] <... openat resumed>) = 3 [pid 5830] <... write resumed>) = 16777216 [pid 5829] munmap(0x7f2db3a00000, 138412032 [pid 5827] <... munmap resumed>) = 0 [pid 5822] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5831] chdir("./file1" [pid 5830] munmap(0x7f2db3a00000, 138412032 [pid 5822] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5822] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5827] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5822] <... openat resumed>) = 3 [pid 5827] ioctl(4, LOOP_SET_FD, 3 [pid 5822] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5831] <... chdir resumed>) = 0 [pid 5822] getdents64(3, 0x5555938366f0 /* 4 entries */, 32768) = 112 [pid 5822] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5831] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5822] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5822] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5831] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5822] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5822] unlink("./0/binderfs" [pid 5831] exit_group(0 [pid 5822] <... unlink resumed>) = 0 [pid 5831] <... exit_group resumed>) = ? [pid 5829] <... munmap resumed>) = 0 [pid 5831] +++ exited with 0 +++ [pid 5827] <... ioctl resumed>) = 0 [pid 5822] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5825] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5831, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=21 /* 0.21 s */} --- [pid 5829] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5829] ioctl(4, LOOP_SET_FD, 3 [pid 5830] <... munmap resumed>) = 0 [pid 5827] close(3 [pid 5825] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5827] <... close resumed>) = 0 [pid 5827] close(4) = 0 [pid 5827] mkdir("./file1", 0777) = 0 [pid 5825] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5827] mount("/dev/loop1", "./file1", "jfs", MS_NOSUID|MS_MANDLOCK|MS_POSIXACL, "discard=0x00000000000000f4,discard=0x000000000000aff9,errors=continue,nointegrity,iocharset=iso8859-"... [pid 5825] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5830] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5825] <... openat resumed>) = 3 [pid 5825] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5825] getdents64(3, 0x5555938366f0 /* 4 entries */, 32768) = 112 [ 86.818392][ T5827] loop1: detected capacity change from 0 to 32768 [ 86.842107][ T5829] loop4: detected capacity change from 0 to 32768 [pid 5825] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5827] <... mount resumed>) = 0 [pid 5829] <... ioctl resumed>) = 0 [pid 5825] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5830] <... openat resumed>) = 4 [pid 5825] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5830] ioctl(4, LOOP_SET_FD, 3 [pid 5825] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5827] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5827] chdir("./file1") = 0 [pid 5827] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5829] close(3) = 0 [pid 5829] close(4) = 0 [pid 5827] exit_group(0 [pid 5829] mkdir("./file1", 0777) = 0 [pid 5827] <... exit_group resumed>) = ? [pid 5827] +++ exited with 0 +++ [pid 5829] mount("/dev/loop4", "./file1", "jfs", MS_NOSUID|MS_MANDLOCK|MS_POSIXACL, "discard=0x00000000000000f4,discard=0x000000000000aff9,errors=continue,nointegrity,iocharset=iso8859-"... [pid 5830] <... ioctl resumed>) = 0 [pid 5825] unlink("./0/binderfs" [pid 5823] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5827, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=21 /* 0.21 s */} --- [pid 5825] <... unlink resumed>) = 0 [pid 5823] restart_syscall(<... resuming interrupted clone ...> [pid 5822] <... umount2 resumed>) = 0 [pid 5822] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5825] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5822] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5822] newfstatat(AT_FDCWD, "./0/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5822] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] openat(AT_FDCWD, "./0/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5822] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5822] getdents64(4, 0x55559383e730 /* 2 entries */, 32768) = 48 [pid 5822] getdents64(4, 0x55559383e730 /* 0 entries */, 32768) = 0 [pid 5822] close(4) = 0 [pid 5822] rmdir("./0/file1" [pid 5823] <... restart_syscall resumed>) = 0 [pid 5822] <... rmdir resumed>) = 0 [pid 5830] close(3 [pid 5822] getdents64(3, [pid 5830] <... close resumed>) = 0 [pid 5829] <... mount resumed>) = 0 [pid 5825] <... umount2 resumed>) = 0 [pid 5823] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5822] <... getdents64 resumed>0x5555938366f0 /* 0 entries */, 32768) = 0 [pid 5830] close(4 [pid 5823] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5829] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY [pid 5823] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5822] close(3 [pid 5830] <... close resumed>) = 0 [pid 5829] <... openat resumed>) = 3 [pid 5825] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5823] <... openat resumed>) = 3 [pid 5822] <... close resumed>) = 0 [pid 5830] mkdir("./file1", 0777 [pid 5829] chdir("./file1" [pid 5823] newfstatat(3, "", [pid 5822] rmdir("./0" [pid 5830] <... mkdir resumed>) = 0 [pid 5829] <... chdir resumed>) = 0 [pid 5825] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5823] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5822] <... rmdir resumed>) = 0 [pid 5830] mount("/dev/loop2", "./file1", "jfs", MS_NOSUID|MS_MANDLOCK|MS_POSIXACL, "discard=0x00000000000000f4,discard=0x000000000000aff9,errors=continue,nointegrity,iocharset=iso8859-"... [pid 5829] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5825] newfstatat(AT_FDCWD, "./0/file1", [pid 5822] mkdir("./1", 0777 [pid 5829] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5825] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5823] getdents64(3, [pid 5822] <... mkdir resumed>) = 0 [pid 5829] exit_group(0 [pid 5825] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5823] <... getdents64 resumed>0x5555938366f0 /* 4 entries */, 32768) = 112 [pid 5822] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5829] <... exit_group resumed>) = ? [pid 5823] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5822] <... openat resumed>) = 3 [pid 5829] +++ exited with 0 +++ [pid 5825] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 86.888642][ T5830] loop2: detected capacity change from 0 to 32768 [pid 5823] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5822] ioctl(3, LOOP_CLR_FD [pid 5826] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5829, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=28 /* 0.28 s */} --- [pid 5825] openat(AT_FDCWD, "./0/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5823] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5826] restart_syscall(<... resuming interrupted clone ...> [pid 5825] <... openat resumed>) = 4 [pid 5823] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5826] <... restart_syscall resumed>) = 0 [pid 5823] unlink("./0/binderfs" [pid 5825] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5822] <... ioctl resumed>) = 0 [pid 5822] close(3 [pid 5826] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5825] getdents64(4, [pid 5830] <... mount resumed>) = 0 [pid 5823] <... unlink resumed>) = 0 [pid 5826] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5825] <... getdents64 resumed>0x55559383e730 /* 2 entries */, 32768) = 48 [pid 5826] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5830] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY [pid 5825] getdents64(4, [pid 5823] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5826] <... openat resumed>) = 3 [pid 5830] <... openat resumed>) = 3 [pid 5826] newfstatat(3, "", [pid 5830] chdir("./file1" [pid 5825] <... getdents64 resumed>0x55559383e730 /* 0 entries */, 32768) = 0 [pid 5826] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5830] <... chdir resumed>) = 0 [pid 5825] close(4 [pid 5830] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5826] getdents64(3, [pid 5825] <... close resumed>) = 0 [pid 5830] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5825] rmdir("./0/file1") = 0 [pid 5830] exit_group(0 [pid 5826] <... getdents64 resumed>0x5555938366f0 /* 4 entries */, 32768) = 112 [pid 5825] getdents64(3, [pid 5830] <... exit_group resumed>) = ? [pid 5826] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5825] <... getdents64 resumed>0x5555938366f0 /* 0 entries */, 32768) = 0 [pid 5830] +++ exited with 0 +++ [pid 5826] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5825] close(3 [pid 5826] newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5825] <... close resumed>) = 0 [pid 5824] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5830, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=18 /* 0.18 s */} --- [pid 5826] unlink("./0/binderfs" [pid 5825] rmdir("./0" [pid 5824] restart_syscall(<... resuming interrupted clone ...> [pid 5826] <... unlink resumed>) = 0 [pid 5825] <... rmdir resumed>) = 0 [pid 5824] <... restart_syscall resumed>) = 0 [pid 5826] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5825] mkdir("./1", 0777) = 0 [pid 5825] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5824] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5824] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5824] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5824] getdents64(3, 0x5555938366f0 /* 4 entries */, 32768) = 112 [pid 5824] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5823] <... umount2 resumed>) = 0 [pid 5824] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5823] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5824] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5823] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5824] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5823] newfstatat(AT_FDCWD, "./0/file1", [pid 5824] unlink("./0/binderfs" [pid 5823] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5824] <... unlink resumed>) = 0 [pid 5823] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5824] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5823] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5823] openat(AT_FDCWD, "./0/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5823] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5823] getdents64(4, 0x55559383e730 /* 2 entries */, 32768) = 48 [pid 5823] getdents64(4, 0x55559383e730 /* 0 entries */, 32768) = 0 [pid 5823] close(4) = 0 [pid 5823] rmdir("./0/file1" [pid 5825] <... openat resumed>) = 3 [pid 5823] <... rmdir resumed>) = 0 [pid 5823] getdents64(3, 0x5555938366f0 /* 0 entries */, 32768) = 0 [pid 5823] close(3) = 0 [pid 5823] rmdir("./0") = 0 [pid 5823] mkdir("./1", 0777 [pid 5825] ioctl(3, LOOP_CLR_FD [pid 5823] <... mkdir resumed>) = 0 [pid 5825] <... ioctl resumed>) = 0 [pid 5823] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5825] close(3 [pid 5823] <... openat resumed>) = 3 [pid 5823] ioctl(3, LOOP_CLR_FD) = 0 [pid 5823] close(3 [pid 5826] <... umount2 resumed>) = 0 [pid 5826] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5826] newfstatat(AT_FDCWD, "./0/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5824] <... umount2 resumed>) = 0 [pid 5826] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5826] openat(AT_FDCWD, "./0/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5824] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5826] <... openat resumed>) = 4 [pid 5824] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5826] newfstatat(4, "", [pid 5824] newfstatat(AT_FDCWD, "./0/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5824] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5824] openat(AT_FDCWD, "./0/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5824] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5824] getdents64(4, 0x55559383e730 /* 2 entries */, 32768) = 48 [pid 5824] getdents64(4, 0x55559383e730 /* 0 entries */, 32768) = 0 [pid 5826] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5826] getdents64(4, [pid 5824] close(4) = 0 [pid 5824] rmdir("./0/file1") = 0 [pid 5826] <... getdents64 resumed>0x55559383e730 /* 2 entries */, 32768) = 48 [pid 5824] getdents64(3, 0x5555938366f0 /* 0 entries */, 32768) = 0 [pid 5826] getdents64(4, [pid 5824] close(3) = 0 [pid 5824] rmdir("./0" [pid 5826] <... getdents64 resumed>0x55559383e730 /* 0 entries */, 32768) = 0 [pid 5824] <... rmdir resumed>) = 0 [pid 5824] mkdir("./1", 0777 [pid 5826] close(4 [pid 5824] <... mkdir resumed>) = 0 [pid 5824] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5824] ioctl(3, LOOP_CLR_FD) = 0 [pid 5824] close(3 [pid 5826] <... close resumed>) = 0 [pid 5826] rmdir("./0/file1") = 0 [pid 5826] getdents64(3, 0x5555938366f0 /* 0 entries */, 32768) = 0 [pid 5826] close(3) = 0 [pid 5826] rmdir("./0") = 0 [pid 5826] mkdir("./1", 0777) = 0 [pid 5826] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5826] ioctl(3, LOOP_CLR_FD) = 0 [pid 5826] close(3 [pid 5822] <... close resumed>) = 0 [pid 5822] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555593835650) = 5836 ./strace-static-x86_64: Process 5836 attached [pid 5836] set_robust_list(0x555593835660, 24) = 0 [pid 5836] chdir("./1") = 0 [pid 5836] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5836] setpgid(0, 0) = 0 [pid 5836] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5836] write(3, "1000", 4) = 4 [pid 5836] close(3) = 0 [pid 5836] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5836] write(1, "executing program\n", 18) = 18 [pid 5836] memfd_create("syzkaller", 0) = 3 [pid 5836] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2db3a00000 [pid 5823] <... close resumed>) = 0 [pid 5825] <... close resumed>) = 0 [pid 5823] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555593835650) = 5837 ./strace-static-x86_64: Process 5837 attached [pid 5837] set_robust_list(0x555593835660, 24 [pid 5824] <... close resumed>) = 0 [pid 5837] <... set_robust_list resumed>) = 0 [pid 5825] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5824] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5837] chdir("./1") = 0 [pid 5825] <... clone resumed>, child_tidptr=0x555593835650) = 5838 [pid 5837] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 ./strace-static-x86_64: Process 5838 attached [pid 5837] setpgid(0, 0 [pid 5824] <... clone resumed>, child_tidptr=0x555593835650) = 5839 [pid 5837] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 5839 attached [pid 5838] set_robust_list(0x555593835660, 24 [pid 5837] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5839] set_robust_list(0x555593835660, 24 [pid 5838] <... set_robust_list resumed>) = 0 [pid 5839] <... set_robust_list resumed>) = 0 [pid 5837] <... openat resumed>) = 3 [pid 5839] chdir("./1" [pid 5838] chdir("./1" [pid 5837] write(3, "1000", 4 [pid 5838] <... chdir resumed>) = 0 [pid 5837] <... write resumed>) = 4 [pid 5839] <... chdir resumed>) = 0 [pid 5837] close(3 [pid 5839] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5838] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5837] <... close resumed>) = 0 [pid 5838] <... prctl resumed>) = 0 [pid 5837] symlink("/dev/binderfs", "./binderfs" [pid 5838] setpgid(0, 0) = 0 [pid 5839] setpgid(0, 0 [pid 5838] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5837] <... symlink resumed>) = 0 executing program [pid 5839] <... setpgid resumed>) = 0 [pid 5838] <... openat resumed>) = 3 [pid 5837] write(1, "executing program\n", 18) = 18 [pid 5838] write(3, "1000", 4) = 4 [pid 5839] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5837] memfd_create("syzkaller", 0 [pid 5838] close(3) = 0 [pid 5838] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5838] write(1, "executing program\n", 18executing program ) = 18 [pid 5839] <... openat resumed>) = 3 [pid 5838] memfd_create("syzkaller", 0 [pid 5837] <... memfd_create resumed>) = 3 [pid 5838] <... memfd_create resumed>) = 3 [pid 5838] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2db3a00000 [pid 5839] write(3, "1000", 4 [pid 5837] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2db3a00000 [pid 5839] <... write resumed>) = 4 [pid 5839] close(3 [pid 5826] <... close resumed>) = 0 [pid 5839] <... close resumed>) = 0 [pid 5839] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5839] write(1, "executing program\n", 18 [pid 5826] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5839] <... write resumed>) = 18 [pid 5839] memfd_create("syzkaller", 0./strace-static-x86_64: Process 5840 attached ) = 3 [pid 5826] <... clone resumed>, child_tidptr=0x555593835650) = 5840 [pid 5840] set_robust_list(0x555593835660, 24 [pid 5839] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5840] <... set_robust_list resumed>) = 0 [pid 5839] <... mmap resumed>) = 0x7f2db3a00000 [pid 5840] chdir("./1") = 0 [pid 5840] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5840] setpgid(0, 0) = 0 [pid 5840] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5840] write(3, "1000", 4) = 4 [pid 5840] close(3) = 0 [pid 5840] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5840] write(1, "executing program\n", 18) = 18 [pid 5840] memfd_create("syzkaller", 0) = 3 [pid 5840] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2db3a00000 [pid 5836] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5838] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5837] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5839] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5840] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5836] <... write resumed>) = 16777216 [pid 5836] munmap(0x7f2db3a00000, 138412032) = 0 [pid 5836] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5836] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5836] close(3) = 0 [pid 5836] close(4) = 0 [pid 5836] mkdir("./file1", 0777) = 0 [pid 5836] mount("/dev/loop0", "./file1", "jfs", MS_NOSUID|MS_MANDLOCK|MS_POSIXACL, "discard=0x00000000000000f4,discard=0x000000000000aff9,errors=continue,nointegrity,iocharset=iso8859-"...) = 0 [pid 5836] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5836] chdir("./file1") = 0 [pid 5836] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5836] exit_group(0) = ? [ 88.102635][ T5836] loop0: detected capacity change from 0 to 32768 [pid 5836] +++ exited with 0 +++ [pid 5822] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5836, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=23 /* 0.23 s */} --- [pid 5822] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5838] <... write resumed>) = 16777216 [pid 5822] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5822] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5822] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5822] getdents64(3, [pid 5838] munmap(0x7f2db3a00000, 138412032 [pid 5822] <... getdents64 resumed>0x5555938366f0 /* 4 entries */, 32768) = 112 [pid 5822] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5837] <... write resumed>) = 16777216 [pid 5822] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5822] newfstatat(AT_FDCWD, "./1/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5838] <... munmap resumed>) = 0 [pid 5822] unlink("./1/binderfs" [pid 5837] munmap(0x7f2db3a00000, 138412032 [pid 5822] <... unlink resumed>) = 0 [pid 5822] umount2("./1/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5838] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5840] <... write resumed>) = 16777216 [pid 5837] <... munmap resumed>) = 0 [pid 5838] <... openat resumed>) = 4 [pid 5838] ioctl(4, LOOP_SET_FD, 3 [pid 5840] munmap(0x7f2db3a00000, 138412032 [pid 5839] <... write resumed>) = 16777216 [pid 5837] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5822] <... umount2 resumed>) = 0 [pid 5839] munmap(0x7f2db3a00000, 138412032 [pid 5837] <... openat resumed>) = 4 [pid 5822] umount2("./1/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5838] <... ioctl resumed>) = 0 [pid 5838] close(3) = 0 [pid 5837] ioctl(4, LOOP_SET_FD, 3 [pid 5822] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5838] close(4 [pid 5837] <... ioctl resumed>) = 0 [pid 5822] newfstatat(AT_FDCWD, "./1/file1", [pid 5838] <... close resumed>) = 0 [pid 5822] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5822] umount2("./1/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5838] mkdir("./file1", 0777 [pid 5822] openat(AT_FDCWD, "./1/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5838] <... mkdir resumed>) = 0 [pid 5822] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5822] getdents64(4, 0x55559383e730 /* 2 entries */, 32768) = 48 [pid 5838] mount("/dev/loop3", "./file1", "jfs", MS_NOSUID|MS_MANDLOCK|MS_POSIXACL, "discard=0x00000000000000f4,discard=0x000000000000aff9,errors=continue,nointegrity,iocharset=iso8859-"... [pid 5822] getdents64(4, 0x55559383e730 /* 0 entries */, 32768) = 0 [pid 5822] close(4) = 0 [pid 5822] rmdir("./1/file1") = 0 [pid 5822] getdents64(3, 0x5555938366f0 /* 0 entries */, 32768) = 0 [pid 5822] close(3 [pid 5838] <... mount resumed>) = 0 [pid 5822] <... close resumed>) = 0 [pid 5822] rmdir("./1" [pid 5838] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY [pid 5822] <... rmdir resumed>) = 0 [pid 5838] <... openat resumed>) = 3 [pid 5822] mkdir("./2", 0777 [pid 5838] chdir("./file1" [pid 5822] <... mkdir resumed>) = 0 [pid 5838] <... chdir resumed>) = 0 [pid 5822] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5838] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5837] close(3 [pid 5822] <... openat resumed>) = 3 [pid 5838] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5837] <... close resumed>) = 0 [pid 5822] ioctl(3, LOOP_CLR_FD [pid 5838] exit_group(0 [pid 5837] close(4 [pid 5822] <... ioctl resumed>) = 0 [pid 5838] <... exit_group resumed>) = ? [ 88.228760][ T5838] loop3: detected capacity change from 0 to 32768 [ 88.247587][ T5837] loop1: detected capacity change from 0 to 32768 [pid 5837] <... close resumed>) = 0 [pid 5822] close(3 [pid 5840] <... munmap resumed>) = 0 [pid 5839] <... munmap resumed>) = 0 [pid 5838] +++ exited with 0 +++ [pid 5837] mkdir("./file1", 0777 [pid 5825] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5838, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=18 /* 0.18 s */} --- [pid 5825] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5837] <... mkdir resumed>) = 0 [pid 5825] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5825] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5825] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5825] getdents64(3, 0x5555938366f0 /* 4 entries */, 32768) = 112 [pid 5825] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5825] newfstatat(AT_FDCWD, "./1/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5825] unlink("./1/binderfs" [pid 5840] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5839] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5837] mount("/dev/loop1", "./file1", "jfs", MS_NOSUID|MS_MANDLOCK|MS_POSIXACL, "discard=0x00000000000000f4,discard=0x000000000000aff9,errors=continue,nointegrity,iocharset=iso8859-"... [pid 5825] <... unlink resumed>) = 0 [pid 5839] <... openat resumed>) = 4 [pid 5825] umount2("./1/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5840] <... openat resumed>) = 4 [pid 5839] ioctl(4, LOOP_SET_FD, 3 [pid 5837] <... mount resumed>) = 0 [pid 5825] <... umount2 resumed>) = 0 [pid 5837] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY [pid 5825] umount2("./1/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5837] <... openat resumed>) = 3 [pid 5825] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5825] newfstatat(AT_FDCWD, "./1/file1", [pid 5837] chdir("./file1" [pid 5825] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] <... chdir resumed>) = 0 [pid 5825] umount2("./1/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5837] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5825] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5837] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5825] openat(AT_FDCWD, "./1/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5837] exit_group(0 [pid 5840] ioctl(4, LOOP_SET_FD, 3 [pid 5825] newfstatat(4, "", [pid 5837] <... exit_group resumed>) = ? [pid 5825] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5839] <... ioctl resumed>) = 0 [pid 5839] close(3) = 0 [pid 5837] +++ exited with 0 +++ [pid 5825] getdents64(4, 0x55559383e730 /* 2 entries */, 32768) = 48 [pid 5825] getdents64(4, 0x55559383e730 /* 0 entries */, 32768) = 0 [pid 5825] close(4) = 0 [pid 5825] rmdir("./1/file1" [pid 5839] close(4 [pid 5825] <... rmdir resumed>) = 0 [pid 5823] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5837, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=28 /* 0.28 s */} --- [pid 5839] <... close resumed>) = 0 [pid 5823] restart_syscall(<... resuming interrupted clone ...> [pid 5839] mkdir("./file1", 0777) = 0 [pid 5825] getdents64(3, [pid 5839] mount("/dev/loop2", "./file1", "jfs", MS_NOSUID|MS_MANDLOCK|MS_POSIXACL, "discard=0x00000000000000f4,discard=0x000000000000aff9,errors=continue,nointegrity,iocharset=iso8859-"... [pid 5825] <... getdents64 resumed>0x5555938366f0 /* 0 entries */, 32768) = 0 [pid 5825] close(3) = 0 [pid 5825] rmdir("./1") = 0 [pid 5825] mkdir("./2", 0777) = 0 [pid 5823] <... restart_syscall resumed>) = 0 [pid 5825] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5840] <... ioctl resumed>) = 0 [pid 5840] close(3 [pid 5825] <... openat resumed>) = 3 [pid 5823] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5840] <... close resumed>) = 0 [pid 5825] ioctl(3, LOOP_CLR_FD [pid 5823] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5840] close(4 [pid 5825] <... ioctl resumed>) = 0 [pid 5825] close(3 [pid 5840] <... close resumed>) = 0 [pid 5823] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [ 88.325180][ T5839] loop2: detected capacity change from 0 to 32768 [ 88.339566][ T5840] loop4: detected capacity change from 0 to 32768 [pid 5840] mkdir("./file1", 0777) = 0 [pid 5823] <... openat resumed>) = 3 [pid 5839] <... mount resumed>) = 0 [pid 5823] newfstatat(3, "", [pid 5840] mount("/dev/loop4", "./file1", "jfs", MS_NOSUID|MS_MANDLOCK|MS_POSIXACL, "discard=0x00000000000000f4,discard=0x000000000000aff9,errors=continue,nointegrity,iocharset=iso8859-"... [pid 5839] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY [pid 5823] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5839] <... openat resumed>) = 3 [pid 5823] getdents64(3, 0x5555938366f0 /* 4 entries */, 32768) = 112 [pid 5823] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5839] chdir("./file1" [pid 5823] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5839] <... chdir resumed>) = 0 [pid 5823] newfstatat(AT_FDCWD, "./1/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5839] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5823] unlink("./1/binderfs") = 0 [pid 5839] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5823] umount2("./1/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5839] exit_group(0) = ? [pid 5839] +++ exited with 0 +++ [pid 5824] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5839, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=22 /* 0.22 s */} --- [pid 5824] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5824] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5824] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5840] <... mount resumed>) = 0 [pid 5824] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5840] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY [pid 5824] getdents64(3, 0x5555938366f0 /* 4 entries */, 32768) = 112 [pid 5840] <... openat resumed>) = 3 [pid 5824] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5840] chdir("./file1" [pid 5824] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5840] <... chdir resumed>) = 0 [pid 5824] newfstatat(AT_FDCWD, "./1/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5840] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5824] unlink("./1/binderfs") = 0 [pid 5840] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5824] umount2("./1/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5840] exit_group(0) = ? [pid 5840] +++ exited with 0 +++ [pid 5826] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5840, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=24 /* 0.24 s */} --- [pid 5826] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5826] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5826] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5826] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5826] getdents64(3, 0x5555938366f0 /* 4 entries */, 32768) = 112 [pid 5823] <... umount2 resumed>) = 0 [pid 5826] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5823] umount2("./1/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5826] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5823] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5826] newfstatat(AT_FDCWD, "./1/binderfs", [pid 5823] newfstatat(AT_FDCWD, "./1/file1", [pid 5826] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5826] unlink("./1/binderfs") = 0 [pid 5826] umount2("./1/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5823] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5823] umount2("./1/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5823] openat(AT_FDCWD, "./1/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5823] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5823] getdents64(4, 0x55559383e730 /* 2 entries */, 32768) = 48 [pid 5823] getdents64(4, [pid 5824] <... umount2 resumed>) = 0 [pid 5823] <... getdents64 resumed>0x55559383e730 /* 0 entries */, 32768) = 0 [pid 5824] umount2("./1/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5823] close(4 [pid 5824] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5824] newfstatat(AT_FDCWD, "./1/file1", [pid 5823] <... close resumed>) = 0 [pid 5824] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5823] rmdir("./1/file1" [pid 5824] umount2("./1/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5823] <... rmdir resumed>) = 0 [pid 5824] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5823] getdents64(3, [pid 5824] openat(AT_FDCWD, "./1/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5823] <... getdents64 resumed>0x5555938366f0 /* 0 entries */, 32768) = 0 [pid 5824] <... openat resumed>) = 4 [pid 5823] close(3 [pid 5824] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5823] <... close resumed>) = 0 [pid 5824] getdents64(4, [pid 5823] rmdir("./1" [pid 5824] <... getdents64 resumed>0x55559383e730 /* 2 entries */, 32768) = 48 [pid 5823] <... rmdir resumed>) = 0 [pid 5824] getdents64(4, [pid 5823] mkdir("./2", 0777 [pid 5824] <... getdents64 resumed>0x55559383e730 /* 0 entries */, 32768) = 0 [pid 5826] <... umount2 resumed>) = 0 [pid 5823] <... mkdir resumed>) = 0 [pid 5824] close(4 [pid 5826] umount2("./1/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5826] newfstatat(AT_FDCWD, "./1/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5826] umount2("./1/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5826] openat(AT_FDCWD, "./1/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5826] newfstatat(4, "", [pid 5824] <... close resumed>) = 0 [pid 5826] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5826] getdents64(4, [pid 5824] rmdir("./1/file1" [pid 5826] <... getdents64 resumed>0x55559383e730 /* 2 entries */, 32768) = 48 [pid 5826] getdents64(4, 0x55559383e730 /* 0 entries */, 32768) = 0 [pid 5826] close(4 [pid 5824] <... rmdir resumed>) = 0 [pid 5823] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5826] <... close resumed>) = 0 [pid 5826] rmdir("./1/file1") = 0 [pid 5826] getdents64(3, [pid 5824] getdents64(3, [pid 5823] <... openat resumed>) = 3 [pid 5826] <... getdents64 resumed>0x5555938366f0 /* 0 entries */, 32768) = 0 [pid 5826] close(3) = 0 [pid 5826] rmdir("./1") = 0 [pid 5823] ioctl(3, LOOP_CLR_FD [pid 5826] mkdir("./2", 0777) = 0 [pid 5826] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5826] ioctl(3, LOOP_CLR_FD) = 0 [pid 5826] close(3) = 0 [pid 5824] <... getdents64 resumed>0x5555938366f0 /* 0 entries */, 32768) = 0 [pid 5826] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5823] <... ioctl resumed>) = 0 [pid 5823] close(3./strace-static-x86_64: Process 5841 attached executing program [pid 5826] <... clone resumed>, child_tidptr=0x555593835650) = 5841 [pid 5824] close(3 [pid 5841] set_robust_list(0x555593835660, 24) = 0 [pid 5841] chdir("./2") = 0 [pid 5841] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5841] setpgid(0, 0) = 0 [pid 5841] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5841] write(3, "1000", 4) = 4 [pid 5841] close(3) = 0 [pid 5841] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5841] write(1, "executing program\n", 18) = 18 [pid 5841] memfd_create("syzkaller", 0) = 3 [pid 5841] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2db3a00000 [pid 5824] <... close resumed>) = 0 [pid 5824] rmdir("./1") = 0 [pid 5824] mkdir("./2", 0777) = 0 [pid 5824] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5824] ioctl(3, LOOP_CLR_FD) = 0 [pid 5824] close(3) = 0 [pid 5824] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555593835650) = 5842 ./strace-static-x86_64: Process 5842 attached [pid 5842] set_robust_list(0x555593835660, 24) = 0 [pid 5842] chdir("./2") = 0 [pid 5842] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5842] setpgid(0, 0) = 0 executing program [pid 5842] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5842] write(3, "1000", 4) = 4 [pid 5842] close(3) = 0 [pid 5842] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5842] write(1, "executing program\n", 18) = 18 [pid 5842] memfd_create("syzkaller", 0) = 3 [pid 5842] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2db3a00000 [pid 5822] <... close resumed>) = 0 [pid 5822] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5825] <... close resumed>) = 0 ./strace-static-x86_64: Process 5843 attached [pid 5822] <... clone resumed>, child_tidptr=0x555593835650) = 5843 [pid 5843] set_robust_list(0x555593835660, 24 [pid 5825] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5844 attached [pid 5843] <... set_robust_list resumed>) = 0 [pid 5825] <... clone resumed>, child_tidptr=0x555593835650) = 5844 [pid 5844] set_robust_list(0x555593835660, 24) = 0 [pid 5844] chdir("./2") = 0 [pid 5844] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5843] chdir("./2" [pid 5844] <... prctl resumed>) = 0 [pid 5844] setpgid(0, 0) = 0 [pid 5844] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5844] write(3, "1000", 4) = 4 [pid 5844] close(3) = 0 [pid 5844] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5844] write(1, "executing program\n", 18) = 18 [pid 5844] memfd_create("syzkaller", 0 [pid 5843] <... chdir resumed>) = 0 [pid 5844] <... memfd_create resumed>) = 3 [pid 5844] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2db3a00000 [pid 5843] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5843] setpgid(0, 0) = 0 [pid 5843] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5843] write(3, "1000", 4) = 4 [pid 5843] close(3) = 0 [pid 5843] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5843] write(1, "executing program\n", 18executing program ) = 18 [pid 5843] memfd_create("syzkaller", 0 [pid 5841] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5843] <... memfd_create resumed>) = 3 [pid 5843] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2db3a00000 [pid 5823] <... close resumed>) = 0 [pid 5842] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5823] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5845 attached [pid 5845] set_robust_list(0x555593835660, 24) = 0 [pid 5845] chdir("./2") = 0 [pid 5823] <... clone resumed>, child_tidptr=0x555593835650) = 5845 [pid 5845] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5845] setpgid(0, 0) = 0 [pid 5845] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5845] write(3, "1000", 4) = 4 [pid 5845] close(3) = 0 [pid 5845] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 5845] write(1, "executing program\n", 18) = 18 [pid 5845] memfd_create("syzkaller", 0) = 3 [pid 5845] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2db3a00000 [pid 5844] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5843] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5845] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5841] <... write resumed>) = 16777216 [pid 5841] munmap(0x7f2db3a00000, 138412032 [pid 5842] <... write resumed>) = 16777216 [pid 5842] munmap(0x7f2db3a00000, 138412032 [pid 5841] <... munmap resumed>) = 0 [pid 5842] <... munmap resumed>) = 0 [pid 5841] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5842] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5841] <... openat resumed>) = 4 [pid 5842] ioctl(4, LOOP_SET_FD, 3 [pid 5841] ioctl(4, LOOP_SET_FD, 3 [pid 5842] <... ioctl resumed>) = 0 [pid 5842] close(3 [pid 5841] <... ioctl resumed>) = 0 [pid 5842] <... close resumed>) = 0 [pid 5842] close(4) = 0 [pid 5842] mkdir("./file1", 0777) = 0 [pid 5842] mount("/dev/loop2", "./file1", "jfs", MS_NOSUID|MS_MANDLOCK|MS_POSIXACL, "discard=0x00000000000000f4,discard=0x000000000000aff9,errors=continue,nointegrity,iocharset=iso8859-"... [pid 5841] close(3) = 0 [pid 5841] close(4) = 0 [pid 5842] <... mount resumed>) = 0 [pid 5842] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5841] mkdir("./file1", 0777 [pid 5842] chdir("./file1") = 0 [pid 5842] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5842] exit_group(0) = ? [pid 5841] <... mkdir resumed>) = 0 [pid 5841] mount("/dev/loop4", "./file1", "jfs", MS_NOSUID|MS_MANDLOCK|MS_POSIXACL, "discard=0x00000000000000f4,discard=0x000000000000aff9,errors=continue,nointegrity,iocharset=iso8859-"... [pid 5842] +++ exited with 0 +++ [ 89.371499][ T5842] loop2: detected capacity change from 0 to 32768 [ 89.379183][ T5841] loop4: detected capacity change from 0 to 32768 [pid 5824] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5842, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=26 /* 0.26 s */} --- [pid 5824] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5824] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5824] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5824] getdents64(3, 0x5555938366f0 /* 4 entries */, 32768) = 112 [pid 5824] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5841] <... mount resumed>) = 0 [pid 5824] newfstatat(AT_FDCWD, "./2/binderfs", [pid 5841] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY [pid 5824] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5841] <... openat resumed>) = 3 [pid 5824] unlink("./2/binderfs") = 0 [pid 5824] umount2("./2/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5841] chdir("./file1") = 0 [pid 5841] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5841] exit_group(0) = ? [pid 5841] +++ exited with 0 +++ [pid 5826] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5841, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=23 /* 0.23 s */} --- [pid 5826] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5824] <... umount2 resumed>) = 0 [pid 5824] umount2("./2/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5826] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5824] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5826] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5824] newfstatat(AT_FDCWD, "./2/file1", [pid 5826] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5824] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5826] <... openat resumed>) = 3 [pid 5824] umount2("./2/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5826] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5824] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5826] getdents64(3, [pid 5824] openat(AT_FDCWD, "./2/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5826] <... getdents64 resumed>0x5555938366f0 /* 4 entries */, 32768) = 112 [pid 5824] <... openat resumed>) = 4 [pid 5826] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5824] newfstatat(4, "", [pid 5826] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5824] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5826] newfstatat(AT_FDCWD, "./2/binderfs", [pid 5824] getdents64(4, [pid 5826] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5824] <... getdents64 resumed>0x55559383e730 /* 2 entries */, 32768) = 48 [pid 5826] unlink("./2/binderfs" [pid 5824] getdents64(4, 0x55559383e730 /* 0 entries */, 32768) = 0 [pid 5826] <... unlink resumed>) = 0 [pid 5824] close(4 [pid 5826] umount2("./2/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5824] <... close resumed>) = 0 [pid 5824] rmdir("./2/file1") = 0 [pid 5824] getdents64(3, 0x5555938366f0 /* 0 entries */, 32768) = 0 [pid 5824] close(3) = 0 [pid 5824] rmdir("./2") = 0 [pid 5824] mkdir("./3", 0777) = 0 [pid 5824] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5824] ioctl(3, LOOP_CLR_FD) = 0 [pid 5824] close(3 [pid 5844] <... write resumed>) = 16777216 [pid 5826] <... umount2 resumed>) = 0 [pid 5826] umount2("./2/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5844] munmap(0x7f2db3a00000, 138412032 [pid 5826] newfstatat(AT_FDCWD, "./2/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5826] umount2("./2/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5826] openat(AT_FDCWD, "./2/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5826] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5826] getdents64(4, 0x55559383e730 /* 2 entries */, 32768) = 48 [pid 5826] getdents64(4, 0x55559383e730 /* 0 entries */, 32768) = 0 [pid 5826] close(4) = 0 [pid 5826] rmdir("./2/file1" [pid 5843] <... write resumed>) = 16777216 [pid 5826] <... rmdir resumed>) = 0 [pid 5826] getdents64(3, 0x5555938366f0 /* 0 entries */, 32768) = 0 [pid 5826] close(3) = 0 [pid 5826] rmdir("./2" [pid 5843] munmap(0x7f2db3a00000, 138412032 [pid 5826] <... rmdir resumed>) = 0 [pid 5826] mkdir("./3", 0777) = 0 [pid 5826] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5826] ioctl(3, LOOP_CLR_FD) = 0 [pid 5826] close(3 [pid 5843] <... munmap resumed>) = 0 [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5843] ioctl(4, LOOP_SET_FD, 3 [pid 5844] <... munmap resumed>) = 0 [pid 5843] <... ioctl resumed>) = 0 [pid 5843] close(3) = 0 [pid 5843] close(4) = 0 [pid 5843] mkdir("./file1", 0777 [pid 5844] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5843] <... mkdir resumed>) = 0 [pid 5843] mount("/dev/loop0", "./file1", "jfs", MS_NOSUID|MS_MANDLOCK|MS_POSIXACL, "discard=0x00000000000000f4,discard=0x000000000000aff9,errors=continue,nointegrity,iocharset=iso8859-"... [pid 5844] <... openat resumed>) = 4 [pid 5844] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5843] <... mount resumed>) = 0 [pid 5843] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5843] chdir("./file1") = 0 [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5843] exit_group(0) = ? [pid 5843] +++ exited with 0 +++ [pid 5822] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5843, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=24 /* 0.24 s */} --- [pid 5822] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5822] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5822] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5822] getdents64(3, 0x5555938366f0 /* 4 entries */, 32768) = 112 [pid 5822] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] newfstatat(AT_FDCWD, "./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5822] unlink("./2/binderfs" [pid 5844] close(3 [pid 5822] <... unlink resumed>) = 0 [pid 5822] umount2("./2/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5844] <... close resumed>) = 0 [pid 5844] close(4 [pid 5822] <... umount2 resumed>) = 0 [pid 5844] <... close resumed>) = 0 [pid 5844] mkdir("./file1", 0777 [pid 5822] umount2("./2/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5844] <... mkdir resumed>) = 0 [pid 5822] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5844] mount("/dev/loop3", "./file1", "jfs", MS_NOSUID|MS_MANDLOCK|MS_POSIXACL, "discard=0x00000000000000f4,discard=0x000000000000aff9,errors=continue,nointegrity,iocharset=iso8859-"... [ 89.630040][ T5843] loop0: detected capacity change from 0 to 32768 [ 89.667375][ T5844] loop3: detected capacity change from 0 to 32768 [pid 5822] newfstatat(AT_FDCWD, "./2/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5822] umount2("./2/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5822] openat(AT_FDCWD, "./2/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5845] <... write resumed>) = 16777216 [pid 5844] <... mount resumed>) = 0 [pid 5822] newfstatat(4, "", [pid 5845] munmap(0x7f2db3a00000, 138412032 [pid 5844] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5822] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5844] chdir("./file1") = 0 [pid 5822] getdents64(4, [pid 5844] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5822] <... getdents64 resumed>0x55559383e730 /* 2 entries */, 32768) = 48 [pid 5844] exit_group(0 [pid 5822] getdents64(4, [pid 5844] <... exit_group resumed>) = ? [pid 5844] +++ exited with 0 +++ [pid 5822] <... getdents64 resumed>0x55559383e730 /* 0 entries */, 32768) = 0 [pid 5825] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5844, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=24 /* 0.24 s */} --- [pid 5822] close(4) = 0 [pid 5822] rmdir("./2/file1") = 0 [pid 5825] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5822] getdents64(3, [pid 5825] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5822] <... getdents64 resumed>0x5555938366f0 /* 0 entries */, 32768) = 0 [pid 5822] close(3) = 0 [pid 5822] rmdir("./2") = 0 [pid 5822] mkdir("./3", 0777) = 0 [pid 5822] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5822] ioctl(3, LOOP_CLR_FD) = 0 [pid 5822] close(3 [pid 5845] <... munmap resumed>) = 0 [pid 5825] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5825] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5825] getdents64(3, 0x5555938366f0 /* 4 entries */, 32768) = 112 [pid 5825] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5825] newfstatat(AT_FDCWD, "./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5825] unlink("./2/binderfs") = 0 [pid 5825] umount2("./2/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5845] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5845] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5845] close(3) = 0 [pid 5845] close(4) = 0 [pid 5845] mkdir("./file1", 0777) = 0 [pid 5825] <... umount2 resumed>) = 0 [pid 5825] umount2("./2/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5825] newfstatat(AT_FDCWD, "./2/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5825] umount2("./2/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5825] openat(AT_FDCWD, "./2/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5825] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5845] mount("/dev/loop1", "./file1", "jfs", MS_NOSUID|MS_MANDLOCK|MS_POSIXACL, "discard=0x00000000000000f4,discard=0x000000000000aff9,errors=continue,nointegrity,iocharset=iso8859-"... [pid 5825] getdents64(4, 0x55559383e730 /* 2 entries */, 32768) = 48 [pid 5825] getdents64(4, 0x55559383e730 /* 0 entries */, 32768) = 0 [pid 5825] close(4) = 0 [pid 5825] rmdir("./2/file1") = 0 [pid 5825] getdents64(3, 0x5555938366f0 /* 0 entries */, 32768) = 0 [pid 5825] close(3) = 0 [pid 5825] rmdir("./2") = 0 [pid 5845] <... mount resumed>) = 0 [pid 5825] mkdir("./3", 0777 [pid 5845] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5825] <... mkdir resumed>) = 0 [pid 5845] chdir("./file1") = 0 [pid 5845] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5845] exit_group(0) = ? [pid 5845] +++ exited with 0 +++ [pid 5823] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5845, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=22 /* 0.22 s */} --- [pid 5823] restart_syscall(<... resuming interrupted clone ...> [pid 5825] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5825] ioctl(3, LOOP_CLR_FD) = 0 [pid 5825] close(3 [pid 5823] <... restart_syscall resumed>) = 0 [pid 5823] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5823] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5823] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5823] getdents64(3, 0x5555938366f0 /* 4 entries */, 32768) = 112 [ 89.759894][ T5845] loop1: detected capacity change from 0 to 32768 [pid 5823] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5823] newfstatat(AT_FDCWD, "./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5823] unlink("./2/binderfs") = 0 [pid 5823] umount2("./2/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5824] <... close resumed>) = 0 [pid 5823] umount2("./2/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5823] newfstatat(AT_FDCWD, "./2/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5823] umount2("./2/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5823] openat(AT_FDCWD, "./2/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5823] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5823] getdents64(4, 0x55559383e730 /* 2 entries */, 32768) = 48 [pid 5823] getdents64(4, 0x55559383e730 /* 0 entries */, 32768) = 0 [pid 5823] close(4) = 0 [pid 5823] rmdir("./2/file1") = 0 [pid 5823] getdents64(3, 0x5555938366f0 /* 0 entries */, 32768) = 0 [pid 5823] close(3) = 0 [pid 5823] rmdir("./2") = 0 [pid 5823] mkdir("./3", 0777) = 0 [pid 5824] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5823] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5823] ioctl(3, LOOP_CLR_FD) = 0 [pid 5823] close(3) = 0 [pid 5823] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5846 attached