./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor522555728

<...>
Warning: Permanently added '10.128.1.212' (ED25519) to the list of known hosts.
execve("./syz-executor522555728", ["./syz-executor522555728"], 0x7ffeab4c6be0 /* 10 vars */) = 0
brk(NULL)                               = 0x55557f6ca000
brk(0x55557f6cad00)                     = 0x55557f6cad00
arch_prctl(ARCH_SET_FS, 0x55557f6ca380) = 0
set_tid_address(0x55557f6ca650)         = 5834
set_robust_list(0x55557f6ca660, 24)     = 0
rseq(0x55557f6caca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor522555728", 4096) = 27
getrandom("\x9d\x56\x31\xde\xfa\x91\x90\xea", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x55557f6cad00
brk(0x55557f6ebd00)                     = 0x55557f6ebd00
brk(0x55557f6ec000)                     = 0x55557f6ec000
mprotect(0x7f3a87a93000, 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./strace-static-x86_64: Process 5835 attached
 <unfinished ...>
[pid  5835] set_robust_list(0x55557f6ca660, 24 <unfinished ...>
[pid  5834] <... clone resumed>, child_tidptr=0x55557f6ca650) = 5835
[pid  5835] <... set_robust_list resumed>) = 0
[pid  5834] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5835] mkdir("./syzkaller.1eLQbn", 0700) = 0
[pid  5835] chmod("./syzkaller.1eLQbn", 0777./strace-static-x86_64: Process 5836 attached
) = 0
[pid  5834] <... clone resumed>, child_tidptr=0x55557f6ca650) = 5836
[pid  5834] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5836] set_robust_list(0x55557f6ca660, 24 <unfinished ...>
[pid  5835] chdir("./syzkaller.1eLQbn" <unfinished ...>
[pid  5836] <... set_robust_list resumed>) = 0
./strace-static-x86_64: Process 5837 attached
[pid  5836] mkdir("./syzkaller.GZ3nNO", 0700 <unfinished ...>
[pid  5837] set_robust_list(0x55557f6ca660, 24 <unfinished ...>
[pid  5835] <... chdir resumed>)        = 0
[pid  5834] <... clone resumed>, child_tidptr=0x55557f6ca650) = 5837
[pid  5837] <... set_robust_list resumed>) = 0
[pid  5836] <... mkdir resumed>)        = 0
[pid  5835] mkdir("./0", 0777 <unfinished ...>
[pid  5836] chmod("./syzkaller.GZ3nNO", 0777) = 0
[pid  5836] chdir("./syzkaller.GZ3nNO" <unfinished ...>
[pid  5834] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5837] mkdir("./syzkaller.4Hl9Ln", 0700 <unfinished ...>
[pid  5835] <... mkdir resumed>)        = 0
[pid  5836] <... chdir resumed>)        = 0
./strace-static-x86_64: Process 5838 attached
[pid  5837] <... mkdir resumed>)        = 0
[pid  5836] mkdir("./0", 0777 <unfinished ...>
[pid  5835] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5838] set_robust_list(0x55557f6ca660, 24 <unfinished ...>
[pid  5834] <... clone resumed>, child_tidptr=0x55557f6ca650) = 5838
[pid  5835] <... openat resumed>)       = 3
[pid  5837] chmod("./syzkaller.4Hl9Ln", 0777 <unfinished ...>
[pid  5834] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5838] <... set_robust_list resumed>) = 0
[pid  5835] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5837] <... chmod resumed>)        = 0
[pid  5835] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  5836] <... mkdir resumed>)        = 0
[pid  5837] chdir("./syzkaller.4Hl9Ln"./strace-static-x86_64: Process 5839 attached
 <unfinished ...>
[pid  5838] mkdir("./syzkaller.oM4p2k", 0700 <unfinished ...>
[pid  5837] <... chdir resumed>)        = 0
[pid  5836] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5835] close(3 <unfinished ...>
[pid  5834] <... clone resumed>, child_tidptr=0x55557f6ca650) = 5839
[pid  5839] set_robust_list(0x55557f6ca660, 24 <unfinished ...>
[pid  5836] <... openat resumed>)       = 3
[pid  5839] <... set_robust_list resumed>) = 0
[pid  5837] mkdir("./0", 0777 <unfinished ...>
[pid  5836] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5835] <... close resumed>)        = 0
[pid  5838] <... mkdir resumed>)        = 0
[pid  5835] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5839] mkdir("./syzkaller.EINCZD", 0700 <unfinished ...>
[pid  5837] <... mkdir resumed>)        = 0
[pid  5836] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  5839] <... mkdir resumed>)        = 0
[pid  5837] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5836] close(3./strace-static-x86_64: Process 5840 attached
 <unfinished ...>
[pid  5839] chmod("./syzkaller.EINCZD", 0777 <unfinished ...>
[pid  5838] chmod("./syzkaller.oM4p2k", 0777 <unfinished ...>
[pid  5837] <... openat resumed>)       = 3
[pid  5839] <... chmod resumed>)        = 0
[pid  5838] <... chmod resumed>)        = 0
[pid  5839] chdir("./syzkaller.EINCZD" <unfinished ...>
[pid  5837] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5840] set_robust_list(0x55557f6ca660, 24 <unfinished ...>
[pid  5836] <... close resumed>)        = 0
[pid  5835] <... clone resumed>, child_tidptr=0x55557f6ca650) = 5840
[pid  5840] <... set_robust_list resumed>) = 0
[pid  5839] <... chdir resumed>)        = 0
[pid  5838] chdir("./syzkaller.oM4p2k" <unfinished ...>
[pid  5837] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  5836] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5840] chdir("./0" <unfinished ...>
[pid  5839] mkdir("./0", 0777 <unfinished ...>
[pid  5840] <... chdir resumed>)        = 0
./strace-static-x86_64: Process 5842 attached
[pid  5840] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5838] <... chdir resumed>)        = 0
[pid  5837] close(3 <unfinished ...>
[pid  5842] set_robust_list(0x55557f6ca660, 24 <unfinished ...>
[pid  5840] <... prctl resumed>)        = 0
[pid  5842] <... set_robust_list resumed>) = 0
[pid  5840] setpgid(0, 0 <unfinished ...>
[pid  5839] <... mkdir resumed>)        = 0
[pid  5842] chdir("./0" <unfinished ...>
[pid  5840] <... setpgid resumed>)      = 0
[pid  5840] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5837] <... close resumed>)        = 0
[pid  5842] <... chdir resumed>)        = 0
[pid  5840] write(3, "1000", 4 <unfinished ...>
[pid  5839] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5838] mkdir("./0", 0777 <unfinished ...>
[pid  5837] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5836] <... clone resumed>, child_tidptr=0x55557f6ca650) = 5842
[pid  5842] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5840] <... write resumed>)        = 4
[pid  5839] <... openat resumed>)       = 3
[pid  5838] <... mkdir resumed>)        = 0
./strace-static-x86_64: Process 5843 attached
[pid  5842] <... prctl resumed>)        = 0
[pid  5843] set_robust_list(0x55557f6ca660, 24 <unfinished ...>
[pid  5842] setpgid(0, 0 <unfinished ...>
[pid  5840] close(3 <unfinished ...>
[pid  5843] <... set_robust_list resumed>) = 0
[pid  5842] <... setpgid resumed>)      = 0
[pid  5840] <... close resumed>)        = 0
[pid  5839] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5842] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5840] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid  5838] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5843] chdir("./0" <unfinished ...>
[pid  5840] <... symlink resumed>)      = 0
[pid  5839] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  5838] <... openat resumed>)       = 3
[pid  5843] <... chdir resumed>)        = 0
[pid  5842] <... openat resumed>)       = 3
[pid  5839] close(3 <unfinished ...>
[pid  5837] <... clone resumed>, child_tidptr=0x55557f6ca650) = 5843
[pid  5843] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5842] write(3, "1000", 4 <unfinished ...>
[pid  5840] write(1, "executing program\n", 18executing program
 <unfinished ...>
[pid  5839] <... close resumed>)        = 0
[pid  5838] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5843] <... prctl resumed>)        = 0
[pid  5842] <... write resumed>)        = 4
[pid  5840] <... write resumed>)        = 18
[pid  5839] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5838] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  5843] setpgid(0, 0 <unfinished ...>
[pid  5842] close(3 <unfinished ...>
[pid  5840] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5838] close(3 <unfinished ...>
[pid  5843] <... setpgid resumed>)      = 0
[pid  5842] <... close resumed>)        = 0
[pid  5843] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5842] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid  5838] <... close resumed>)        = 0
executing program
[pid  5842] <... symlink resumed>)      = 0
[pid  5840] <... memfd_create resumed>) = 3
[pid  5838] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5844 attached
 <unfinished ...>
[pid  5842] write(1, "executing program\n", 18./strace-static-x86_64: Process 5845 attached
 <unfinished ...>
[pid  5843] <... openat resumed>)       = 3
[pid  5842] <... write resumed>)        = 18
[pid  5840] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5844] set_robust_list(0x55557f6ca660, 24) = 0
[pid  5840] <... mmap resumed>)         = 0x7f3a7f5d2000
[pid  5844] chdir("./0" <unfinished ...>
[pid  5839] <... clone resumed>, child_tidptr=0x55557f6ca650) = 5844
[pid  5842] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5843] write(3, "1000", 4 <unfinished ...>
[pid  5845] set_robust_list(0x55557f6ca660, 24 <unfinished ...>
[pid  5843] <... write resumed>)        = 4
[pid  5845] <... set_robust_list resumed>) = 0
[pid  5844] <... chdir resumed>)        = 0
[pid  5843] close(3 <unfinished ...>
[pid  5842] <... memfd_create resumed>) = 3
[pid  5838] <... clone resumed>, child_tidptr=0x55557f6ca650) = 5845
[pid  5844] prctl(PR_SET_PDEATHSIG, SIGKILL) = 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  5843] <... close resumed>)        = 0
[pid  5845] chdir("./0" <unfinished ...>
[pid  5844] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid  5843] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid  5842] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5845] <... chdir resumed>)        = 0
[pid  5845] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5844] <... symlink resumed>)      = 0
[pid  5843] <... symlink resumed>)      = 0
[pid  5842] <... mmap resumed>)         = 0x7f3a7f5d2000
[pid  5845] <... prctl resumed>)        = 0
[pid  5843] write(1, "executing program\n", 18executing program
 <unfinished ...>
[pid  5844] write(1, "executing program\n", 18) = 18
[pid  5844] memfd_create("syzkaller", 0executing program
) = 3
[pid  5845] setpgid(0, 0 <unfinished ...>
[pid  5843] <... write resumed>)        = 18
[pid  5844] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5845] <... setpgid resumed>)      = 0
[pid  5844] <... mmap resumed>)         = 0x7f3a7f5d2000
[pid  5843] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5845] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5843] <... memfd_create resumed>) = 3
[pid  5843] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5845] write(3, "1000", 4)         = 4
[pid  5843] <... mmap resumed>)         = 0x7f3a7f5d2000
[pid  5845] close(3)                    = 0
[pid  5845] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5845] write(1, "executing program\n", 18executing program
) = 18
[pid  5845] memfd_create("syzkaller", 0) = 3
[pid  5845] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3a7f5d2000
[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 <unfinished ...>
[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 <unfinished ...>
[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 <unfinished ...>
[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 <unfinished ...>
[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 <unfinished ...>
[pid  5843] <... write resumed>)        = 16777216
[pid  5843] munmap(0x7f3a7f5d2000, 138412032) = 0
[pid  5843] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4
[pid  5845] <... write resumed>)        = 16777216
[pid  5843] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5845] munmap(0x7f3a7f5d2000, 138412032 <unfinished ...>
[pid  5843] close(3 <unfinished ...>
[pid  5845] <... munmap resumed>)       = 0
[pid  5843] <... close resumed>)        = 0
[pid  5843] close(4)                    = 0
[pid  5843] mkdir("./file1", 0777)      = 0
[pid  5843] mount("/dev/loop2", "./file1", "jfs", MS_NOSUID|MS_NODEV|MS_POSIXACL|MS_STRICTATIME, "uid=0x0000000000000000,nointegrity,errors=remount-ro,errors=remount-ro,noquota,nointegrity,nointegri"... <unfinished ...>
[pid  5845] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5843] <... mount resumed>)        = 0
[pid  5840] <... write resumed>)        = 16777216
[pid  5845] <... openat resumed>)       = 4
[pid  5843] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid  5845] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  5843] <... openat resumed>)       = 3
[pid  5845] <... ioctl resumed>)        = 0
[pid  5843] chdir("./file1" <unfinished ...>
[pid  5845] close(3)                    = 0
[pid  5845] close(4)                    = 0
[pid  5843] <... chdir resumed>)        = 0
[pid  5845] mkdir("./file1", 0777 <unfinished ...>
[pid  5843] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5840] munmap(0x7f3a7f5d2000, 138412032 <unfinished ...>
[pid  5845] <... mkdir resumed>)        = 0
[pid  5843] <... openat resumed>)       = -1 EBUSY (Device or resource busy)
[pid  5843] exit_group(0)               = ?
[pid  5845] mount("/dev/loop3", "./file1", "jfs", MS_NOSUID|MS_NODEV|MS_POSIXACL|MS_STRICTATIME, "uid=0x0000000000000000,nointegrity,errors=remount-ro,errors=remount-ro,noquota,nointegrity,nointegri"... <unfinished ...>
[pid  5843] +++ exited with 0 +++
[pid  5837] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5843, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=14 /* 0.14 s */} ---
[pid  5837] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5840] <... munmap resumed>)       = 0
[pid  5844] <... write resumed>)        = 16777216
[pid  5837] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5837] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5840] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5837] <... openat resumed>)       = 3
[pid  5837] newfstatat(3, "",  <unfinished ...>
[pid  5844] munmap(0x7f3a7f5d2000, 138412032 <unfinished ...>
[pid  5840] <... openat resumed>)       = 4
[pid  5837] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5845] <... mount resumed>)        = 0
[pid  5837] getdents64(3,  <unfinished ...>
[pid  5840] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  5837] <... getdents64 resumed>0x55557f6cb6f0 /* 4 entries */, 32768) = 112
[pid  5837] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5845] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid  5840] <... ioctl resumed>)        = 0
[   61.642202][ T5843] loop2: detected capacity change from 0 to 32768
[   61.675844][ T5845] loop3: detected capacity change from 0 to 32768
[pid  5845] <... openat resumed>)       = 3
[pid  5840] close(3 <unfinished ...>
[pid  5844] <... munmap resumed>)       = 0
[pid  5842] <... write resumed>)        = 16777216
[pid  5840] <... close resumed>)        = 0
[pid  5844] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5842] munmap(0x7f3a7f5d2000, 138412032 <unfinished ...>
[pid  5845] chdir("./file1" <unfinished ...>
[pid  5840] close(4 <unfinished ...>
[pid  5845] <... chdir resumed>)        = 0
[pid  5840] <... close resumed>)        = 0
[pid  5845] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5840] mkdir("./file1", 0777 <unfinished ...>
[pid  5845] <... openat resumed>)       = -1 EBUSY (Device or resource busy)
[pid  5840] <... mkdir resumed>)        = 0
[pid  5845] exit_group(0)               = ?
[pid  5845] +++ exited with 0 +++
[pid  5840] mount("/dev/loop0", "./file1", "jfs", MS_NOSUID|MS_NODEV|MS_POSIXACL|MS_STRICTATIME, "uid=0x0000000000000000,nointegrity,errors=remount-ro,errors=remount-ro,noquota,nointegrity,nointegri"... <unfinished ...>
[pid  5838] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5845, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=16 /* 0.16 s */} ---
[pid  5838] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  5844] <... openat resumed>)       = 4
[pid  5844] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  5838] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5844] <... ioctl resumed>)        = 0
[pid  5842] <... munmap resumed>)       = 0
[pid  5840] <... mount resumed>)        = 0
[pid  5837] <... umount2 resumed>)      = 0
[pid  5838] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5842] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[   61.727424][ T5840] loop0: detected capacity change from 0 to 32768
[pid  5840] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid  5838] <... openat resumed>)       = 3
[pid  5840] <... openat resumed>)       = 3
[pid  5840] chdir("./file1")            = 0
[pid  5837] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5840] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5837] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5840] <... openat resumed>)       = -1 EBUSY (Device or resource busy)
[pid  5837] newfstatat(AT_FDCWD, "./0/file1",  <unfinished ...>
[pid  5840] exit_group(0)               = ?
[pid  5837] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5838] newfstatat(3, "",  <unfinished ...>
[pid  5837] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5844] close(3 <unfinished ...>
[pid  5838] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5837] openat(AT_FDCWD, "./0/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5838] getdents64(3,  <unfinished ...>
[pid  5844] <... close resumed>)        = 0
[pid  5842] <... openat resumed>)       = 4
[pid  5844] close(4 <unfinished ...>
[pid  5842] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  5840] +++ exited with 0 +++
[pid  5838] <... getdents64 resumed>0x55557f6cb6f0 /* 4 entries */, 32768) = 112
[pid  5837] newfstatat(4, "",  <unfinished ...>
[pid  5844] <... close resumed>)        = 0
[pid  5842] <... ioctl resumed>)        = 0
[pid  5838] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5837] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5844] mkdir("./file1", 0777 <unfinished ...>
[pid  5835] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5840, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=15 /* 0.15 s */} ---
[pid  5837] getdents64(4,  <unfinished ...>
[pid  5835] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5837] <... getdents64 resumed>0x55557f6d3730 /* 2 entries */, 32768) = 48
[pid  5835] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5835] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5844] <... mkdir resumed>)        = 0
[pid  5837] getdents64(4,  <unfinished ...>
[pid  5835] <... openat resumed>)       = 3
[pid  5837] <... getdents64 resumed>0x55557f6d3730 /* 0 entries */, 32768) = 0
[pid  5835] newfstatat(3, "",  <unfinished ...>
[pid  5844] mount("/dev/loop4", "./file1", "jfs", MS_NOSUID|MS_NODEV|MS_POSIXACL|MS_STRICTATIME, "uid=0x0000000000000000,nointegrity,errors=remount-ro,errors=remount-ro,noquota,nointegrity,nointegri"... <unfinished ...>
[pid  5842] close(3 <unfinished ...>
[pid  5837] close(4 <unfinished ...>
[pid  5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5842] <... close resumed>)        = 0
[pid  5835] getdents64(3, 0x55557f6cb6f0 /* 4 entries */, 32768) = 112
[pid  5837] <... close resumed>)        = 0
[pid  5835] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5837] rmdir("./0/file1")          = 0
[pid  5837] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5844] <... mount resumed>)        = 0
[pid  5842] close(4 <unfinished ...>
[pid  5844] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid  5842] <... close resumed>)        = 0
[pid  5844] chdir("./file1" <unfinished ...>
[pid  5842] mkdir("./file1", 0777 <unfinished ...>
[pid  5844] <... chdir resumed>)        = 0
[pid  5844] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5837] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5844] exit_group(0 <unfinished ...>
[pid  5842] <... mkdir resumed>)        = 0
[pid  5837] newfstatat(AT_FDCWD, "./0/binderfs",  <unfinished ...>
[pid  5844] <... exit_group resumed>)   = ?
[pid  5837] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5844] +++ exited with 0 +++
[pid  5837] unlink("./0/binderfs")      = 0
[pid  5837] getdents64(3, 0x55557f6cb6f0 /* 0 entries */, 32768) = 0
[pid  5837] close(3)                    = 0
[pid  5842] mount("/dev/loop1", "./file1", "jfs", MS_NOSUID|MS_NODEV|MS_POSIXACL|MS_STRICTATIME, "uid=0x0000000000000000,nointegrity,errors=remount-ro,errors=remount-ro,noquota,nointegrity,nointegri"... <unfinished ...>
[pid  5837] rmdir("./0" <unfinished ...>
[pid  5839] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5844, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=20 /* 0.20 s */} ---
[pid  5837] <... rmdir resumed>)        = 0
[pid  5839] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5837] mkdir("./1", 0777)          = 0
[pid  5837] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  5837] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5842] <... mount resumed>)        = 0
[pid  5839] <... restart_syscall resumed>) = 0
[pid  5838] <... umount2 resumed>)      = 0
[pid  5835] <... umount2 resumed>)      = 0
[pid  5842] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid  5838] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5835] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5838] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5837] <... ioctl resumed>)        = 0
[pid  5835] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5842] <... openat resumed>)       = 3
[pid  5839] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5838] newfstatat(AT_FDCWD, "./0/file1",  <unfinished ...>
[pid  5837] close(3 <unfinished ...>
[pid  5835] newfstatat(AT_FDCWD, "./0/file1",  <unfinished ...>
[pid  5839] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5838] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5842] chdir("./file1" <unfinished ...>
[pid  5839] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5838] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5835] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5842] <... chdir resumed>)        = 0
[pid  5839] <... openat resumed>)       = 3
[pid  5838] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5835] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5839] newfstatat(3, "",  <unfinished ...>
[pid  5838] openat(AT_FDCWD, "./0/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5835] openat(AT_FDCWD, "./0/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5842] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5839] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5838] <... openat resumed>)       = 4
[pid  5835] <... openat resumed>)       = 4
[pid  5838] newfstatat(4, "",  <unfinished ...>
[pid  5835] newfstatat(4, "",  <unfinished ...>
[pid  5838] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5838] getdents64(4,  <unfinished ...>
[pid  5835] getdents64(4,  <unfinished ...>
[pid  5839] getdents64(3,  <unfinished ...>
[pid  5838] <... getdents64 resumed>0x55557f6d3730 /* 2 entries */, 32768) = 48
[pid  5835] <... getdents64 resumed>0x55557f6d3730 /* 2 entries */, 32768) = 48
[pid  5842] <... openat resumed>)       = -1 EBUSY (Device or resource busy)
[pid  5839] <... getdents64 resumed>0x55557f6cb6f0 /* 4 entries */, 32768) = 112
[pid  5838] getdents64(4,  <unfinished ...>
[   61.771651][ T5844] loop4: detected capacity change from 0 to 32768
[   61.795579][ T5842] loop1: detected capacity change from 0 to 32768
[pid  5835] getdents64(4,  <unfinished ...>
[pid  5842] exit_group(0 <unfinished ...>
[pid  5839] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5838] <... getdents64 resumed>0x55557f6d3730 /* 0 entries */, 32768) = 0
[pid  5835] <... getdents64 resumed>0x55557f6d3730 /* 0 entries */, 32768) = 0
[pid  5842] <... exit_group resumed>)   = ?
[pid  5838] close(4 <unfinished ...>
[pid  5835] close(4 <unfinished ...>
[pid  5842] +++ exited with 0 +++
[pid  5838] <... close resumed>)        = 0
[pid  5836] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5842, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=16 /* 0.16 s */} ---
[pid  5835] <... close resumed>)        = 0
[pid  5838] rmdir("./0/file1")          = 0
[pid  5836] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5835] rmdir("./0/file1" <unfinished ...>
[pid  5838] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5836] <... restart_syscall resumed>) = 0
[pid  5835] <... rmdir resumed>)        = 0
[pid  5838] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5835] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5836] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5835] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5836] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5836] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5835] newfstatat(AT_FDCWD, "./0/binderfs",  <unfinished ...>
[pid  5836] getdents64(3, 0x55557f6cb6f0 /* 4 entries */, 32768) = 112
[pid  5836] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5835] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5838] newfstatat(AT_FDCWD, "./0/binderfs",  <unfinished ...>
[pid  5835] unlink("./0/binderfs" <unfinished ...>
[pid  5838] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5835] <... unlink resumed>)       = 0
[pid  5839] <... umount2 resumed>)      = 0
[pid  5835] getdents64(3,  <unfinished ...>
[pid  5838] unlink("./0/binderfs" <unfinished ...>
[pid  5835] <... getdents64 resumed>0x55557f6cb6f0 /* 0 entries */, 32768) = 0
[pid  5835] close(3)                    = 0
[pid  5835] rmdir("./0" <unfinished ...>
[pid  5838] <... unlink resumed>)       = 0
[pid  5835] <... rmdir resumed>)        = 0
[pid  5835] mkdir("./1", 0777 <unfinished ...>
[pid  5839] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5835] <... mkdir resumed>)        = 0
[pid  5839] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5835] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5839] newfstatat(AT_FDCWD, "./0/file1",  <unfinished ...>
[pid  5838] getdents64(3,  <unfinished ...>
[pid  5835] <... openat resumed>)       = 3
[pid  5839] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5838] <... getdents64 resumed>0x55557f6cb6f0 /* 0 entries */, 32768) = 0
[pid  5835] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5839] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5838] close(3 <unfinished ...>
[pid  5835] <... ioctl resumed>)        = 0
[pid  5839] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5838] <... close resumed>)        = 0
[pid  5835] close(3 <unfinished ...>
[pid  5838] rmdir("./0")                = 0
[pid  5838] mkdir("./1", 0777 <unfinished ...>
[pid  5835] <... close resumed>)        = 0
[pid  5839] openat(AT_FDCWD, "./0/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5835] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5839] <... openat resumed>)       = 4
[pid  5838] <... mkdir resumed>)        = 0
[pid  5839] newfstatat(4, "",  <unfinished ...>
[pid  5838] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5839] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5838] <... openat resumed>)       = 3
[pid  5838] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5835] <... clone resumed>, child_tidptr=0x55557f6ca650) = 5850
[pid  5838] <... ioctl resumed>)        = 0
[pid  5838] close(3 <unfinished ...>
[pid  5839] getdents64(4, 0x55557f6d3730 /* 2 entries */, 32768) = 48
[pid  5839] getdents64(4, 0x55557f6d3730 /* 0 entries */, 32768) = 0
[pid  5839] close(4)                    = 0
[pid  5839] rmdir("./0/file1")          = 0
./strace-static-x86_64: Process 5850 attached
[pid  5836] <... umount2 resumed>)      = 0
[pid  5850] set_robust_list(0x55557f6ca660, 24 <unfinished ...>
[pid  5836] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5850] <... set_robust_list resumed>) = 0
[pid  5836] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5850] chdir("./1" <unfinished ...>
[pid  5836] newfstatat(AT_FDCWD, "./0/file1",  <unfinished ...>
[pid  5839] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5850] <... chdir resumed>)        = 0
[pid  5850] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5836] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5839] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5850] <... prctl resumed>)        = 0
[pid  5850] setpgid(0, 0)               = 0
[pid  5850] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5839] newfstatat(AT_FDCWD, "./0/binderfs",  <unfinished ...>
[pid  5836] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5839] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5836] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5850] <... openat resumed>)       = 3
[pid  5839] unlink("./0/binderfs" <unfinished ...>
[pid  5836] openat(AT_FDCWD, "./0/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5850] write(3, "1000", 4)         = 4
executing program
[pid  5850] close(3 <unfinished ...>
[pid  5839] <... unlink resumed>)       = 0
[pid  5836] <... openat resumed>)       = 4
[pid  5850] <... close resumed>)        = 0
[pid  5850] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5850] write(1, "executing program\n", 18) = 18
[pid  5850] memfd_create("syzkaller", 0) = 3
[pid  5850] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5839] getdents64(3,  <unfinished ...>
[pid  5836] newfstatat(4, "",  <unfinished ...>
[pid  5850] <... mmap resumed>)         = 0x7f3a7f5d2000
[pid  5836] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5839] <... getdents64 resumed>0x55557f6cb6f0 /* 0 entries */, 32768) = 0
[pid  5839] close(3 <unfinished ...>
[pid  5836] getdents64(4,  <unfinished ...>
[pid  5839] <... close resumed>)        = 0
[pid  5836] <... getdents64 resumed>0x55557f6d3730 /* 2 entries */, 32768) = 48
[pid  5839] rmdir("./0" <unfinished ...>
[pid  5836] getdents64(4,  <unfinished ...>
[pid  5839] <... rmdir resumed>)        = 0
[pid  5836] <... getdents64 resumed>0x55557f6d3730 /* 0 entries */, 32768) = 0
[pid  5839] mkdir("./1", 0777 <unfinished ...>
[pid  5836] close(4)                    = 0
[pid  5839] <... mkdir resumed>)        = 0
[pid  5836] rmdir("./0/file1" <unfinished ...>
[pid  5839] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  5836] <... rmdir resumed>)        = 0
[pid  5839] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5836] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5839] close(3 <unfinished ...>
[pid  5836] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5839] <... close resumed>)        = 0
[pid  5836] newfstatat(AT_FDCWD, "./0/binderfs",  <unfinished ...>
[pid  5839] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5851 attached
 <unfinished ...>
[pid  5836] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5851] set_robust_list(0x55557f6ca660, 24 <unfinished ...>
[pid  5839] <... clone resumed>, child_tidptr=0x55557f6ca650) = 5851
[pid  5836] unlink("./0/binderfs" <unfinished ...>
[pid  5851] <... set_robust_list resumed>) = 0
[pid  5836] <... unlink resumed>)       = 0
[pid  5851] chdir("./1" <unfinished ...>
[pid  5836] getdents64(3, 0x55557f6cb6f0 /* 0 entries */, 32768) = 0
[pid  5836] close(3 <unfinished ...>
[pid  5851] <... chdir resumed>)        = 0
[pid  5836] <... close resumed>)        = 0
[pid  5851] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5851] setpgid(0, 0)               = 0
[pid  5851] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5851] write(3, "1000", 4 <unfinished ...>
[pid  5836] rmdir("./0" <unfinished ...>
[pid  5851] <... write resumed>)        = 4
[pid  5851] close(3 <unfinished ...>
[pid  5836] <... rmdir resumed>)        = 0
[pid  5851] <... close resumed>)        = 0
executing program
[pid  5836] mkdir("./1", 0777 <unfinished ...>
[pid  5851] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5836] <... mkdir resumed>)        = 0
[pid  5851] write(1, "executing program\n", 18 <unfinished ...>
[pid  5836] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5851] <... write resumed>)        = 18
[pid  5851] memfd_create("syzkaller", 0) = 3
[pid  5851] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5836] <... openat resumed>)       = 3
[pid  5851] <... mmap resumed>)         = 0x7f3a7f5d2000
[pid  5836] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5836] close(3)                    = 0
[pid  5836] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5852 attached
, child_tidptr=0x55557f6ca650) = 5852
[pid  5852] set_robust_list(0x55557f6ca660, 24) = 0
[pid  5852] chdir("./1")                = 0
[pid  5852] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5852] setpgid(0, 0)               = 0
[pid  5852] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5852] write(3, "1000", 4)         = 4
[pid  5852] close(3)                    = 0
[pid  5852] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid  5852] write(1, "executing program\n", 18) = 18
[pid  5852] memfd_create("syzkaller", 0) = 3
[pid  5852] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3a7f5d2000
[pid  5838] <... close resumed>)        = 0
[pid  5838] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5853 attached
 <unfinished ...>
[pid  5853] set_robust_list(0x55557f6ca660, 24 <unfinished ...>
[pid  5838] <... clone resumed>, child_tidptr=0x55557f6ca650) = 5853
[pid  5853] <... set_robust_list resumed>) = 0
[pid  5853] chdir("./1" <unfinished ...>
[pid  5837] <... close resumed>)        = 0
[pid  5837] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557f6ca650) = 5854
[pid  5853] <... chdir resumed>)        = 0
./strace-static-x86_64: Process 5854 attached
[pid  5853] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5854] set_robust_list(0x55557f6ca660, 24) = 0
[pid  5854] chdir("./1")                = 0
[pid  5853] setpgid(0, 0 <unfinished ...>
[pid  5854] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5853] <... setpgid resumed>)      = 0
[pid  5854] <... prctl resumed>)        = 0
[pid  5854] setpgid(0, 0 <unfinished ...>
[pid  5853] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5854] <... setpgid resumed>)      = 0
[pid  5854] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5853] <... openat resumed>)       = 3
[pid  5854] <... openat resumed>)       = 3
[pid  5853] write(3, "1000", 4 <unfinished ...>
[pid  5854] write(3, "1000", 4 <unfinished ...>
[pid  5853] <... write resumed>)        = 4
[pid  5854] <... write resumed>)        = 4
[pid  5854] close(3 <unfinished ...>
[pid  5853] close(3 <unfinished ...>
[pid  5854] <... close resumed>)        = 0
[pid  5854] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid  5853] <... close resumed>)        = 0
[pid  5854] <... symlink resumed>)      = 0
[pid  5853] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid  5854] write(1, "executing program\n", 18) = 18
[pid  5854] memfd_create("syzkaller", 0) = 3
[pid  5854] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3a7f5d2000
executing program
[pid  5853] write(1, "executing program\n", 18) = 18
[pid  5853] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5850] 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 <unfinished ...>
[pid  5853] <... memfd_create resumed>) = 3
[pid  5853] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5851] 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 <unfinished ...>
[pid  5853] <... mmap resumed>)         = 0x7f3a7f5d2000
[pid  5852] 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 <unfinished ...>
[pid  5851] <... write resumed>)        = 16777216
[pid  5854] 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 <unfinished ...>
[pid  5851] munmap(0x7f3a7f5d2000, 138412032) = 0
[pid  5851] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4
[pid  5851] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5851] close(3)                    = 0
[pid  5851] close(4)                    = 0
[pid  5851] mkdir("./file1", 0777)      = 0
[pid  5851] mount("/dev/loop4", "./file1", "jfs", MS_NOSUID|MS_NODEV|MS_POSIXACL|MS_STRICTATIME, "uid=0x0000000000000000,nointegrity,errors=remount-ro,errors=remount-ro,noquota,nointegrity,nointegri"... <unfinished ...>
[pid  5853] 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 <unfinished ...>
[pid  5851] <... mount resumed>)        = 0
[pid  5851] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid  5851] chdir("./file1")            = 0
[pid  5851] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5851] exit_group(0)               = ?
[pid  5851] +++ exited with 0 +++
[pid  5839] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5851, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=16 /* 0.16 s */} ---
[pid  5839] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  5839] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5839] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5839] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5839] getdents64(3, 0x55557f6cb6f0 /* 4 entries */, 32768) = 112
[   62.552426][ T5851] loop4: detected capacity change from 0 to 32768
[pid  5839] umount2("./1/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid  5839] umount2("./1/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5839] newfstatat(AT_FDCWD, "./1/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5839] umount2("./1/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5839] openat(AT_FDCWD, "./1/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5839] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5839] getdents64(4, 0x55557f6d3730 /* 2 entries */, 32768) = 48
[pid  5839] getdents64(4, 0x55557f6d3730 /* 0 entries */, 32768) = 0
[pid  5839] close(4)                    = 0
[pid  5839] rmdir("./1/file1")          = 0
[pid  5839] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5839] newfstatat(AT_FDCWD, "./1/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5839] unlink("./1/binderfs")      = 0
[pid  5839] getdents64(3, 0x55557f6cb6f0 /* 0 entries */, 32768) = 0
[pid  5839] close(3)                    = 0
[pid  5839] rmdir("./1")                = 0
[pid  5839] mkdir("./2", 0777)          = 0
[pid  5839] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5850] <... write resumed>)        = 16777216
[pid  5839] <... openat resumed>)       = 3
[pid  5850] munmap(0x7f3a7f5d2000, 138412032 <unfinished ...>
[pid  5839] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5839] close(3 <unfinished ...>
[pid  5850] <... munmap resumed>)       = 0
[pid  5850] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5850] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5850] close(3)                    = 0
[pid  5850] close(4)                    = 0
[pid  5850] mkdir("./file1", 0777)      = 0
[pid  5850] mount("/dev/loop0", "./file1", "jfs", MS_NOSUID|MS_NODEV|MS_POSIXACL|MS_STRICTATIME, "uid=0x0000000000000000,nointegrity,errors=remount-ro,errors=remount-ro,noquota,nointegrity,nointegri"...) = 0
[pid  5850] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid  5850] chdir("./file1")            = 0
[pid  5850] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5850] exit_group(0)               = ?
[pid  5850] +++ exited with 0 +++
[pid  5835] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5850, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=21 /* 0.21 s */} ---
[pid  5835] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  5835] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5835] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5854] <... write resumed>)        = 16777216
[pid  5835] <... openat resumed>)       = 3
[pid  5835] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[   62.732152][ T5850] loop0: detected capacity change from 0 to 32768
[pid  5835] getdents64(3, 0x55557f6cb6f0 /* 4 entries */, 32768) = 112
[pid  5854] munmap(0x7f3a7f5d2000, 138412032 <unfinished ...>
[pid  5835] umount2("./1/file1", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5854] <... munmap resumed>)       = 0
[pid  5854] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4
[pid  5854] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5854] close(3)                    = 0
[pid  5854] close(4)                    = 0
[pid  5854] mkdir("./file1", 0777)      = 0
[pid  5854] mount("/dev/loop2", "./file1", "jfs", MS_NOSUID|MS_NODEV|MS_POSIXACL|MS_STRICTATIME, "uid=0x0000000000000000,nointegrity,errors=remount-ro,errors=remount-ro,noquota,nointegrity,nointegri"...) = 0
[pid  5835] <... umount2 resumed>)      = 0
[pid  5854] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid  5835] umount2("./1/file1", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5854] <... openat resumed>)       = 3
[pid  5835] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5854] chdir("./file1" <unfinished ...>
[pid  5835] newfstatat(AT_FDCWD, "./1/file1",  <unfinished ...>
[pid  5854] <... chdir resumed>)        = 0
[pid  5854] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5835] umount2("./1/file1", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5854] <... openat resumed>)       = -1 EBUSY (Device or resource busy)
[pid  5835] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5835] openat(AT_FDCWD, "./1/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5835] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5835] getdents64(4, 0x55557f6d3730 /* 2 entries */, 32768) = 48
[pid  5835] getdents64(4, 0x55557f6d3730 /* 0 entries */, 32768) = 0
[pid  5835] close(4)                    = 0
[pid  5835] rmdir("./1/file1")          = 0
[pid  5835] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5835] newfstatat(AT_FDCWD, "./1/binderfs",  <unfinished ...>
[pid  5854] exit_group(0 <unfinished ...>
[pid  5835] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5854] <... exit_group resumed>)   = ?
[pid  5852] <... write resumed>)        = 16777216
[pid  5835] unlink("./1/binderfs" <unfinished ...>
[pid  5854] +++ exited with 0 +++
[pid  5835] <... unlink resumed>)       = 0
[pid  5852] munmap(0x7f3a7f5d2000, 138412032 <unfinished ...>
[pid  5837] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5854, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=13 /* 0.13 s */} ---
[pid  5835] getdents64(3, 0x55557f6cb6f0 /* 0 entries */, 32768) = 0
[pid  5837] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5835] close(3 <unfinished ...>
[pid  5837] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5835] <... close resumed>)        = 0
[pid  5837] newfstatat(3, "",  <unfinished ...>
[pid  5853] <... write resumed>)        = 16777216
[pid  5837] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5835] rmdir("./1" <unfinished ...>
[pid  5837] getdents64(3,  <unfinished ...>
[pid  5853] munmap(0x7f3a7f5d2000, 138412032 <unfinished ...>
[pid  5837] <... getdents64 resumed>0x55557f6cb6f0 /* 4 entries */, 32768) = 112
[pid  5835] <... rmdir resumed>)        = 0
[   62.800800][ T5854] loop2: detected capacity change from 0 to 32768
[pid  5837] umount2("./1/file1", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5835] mkdir("./2", 0777)          = 0
[pid  5835] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5852] <... munmap resumed>)       = 0
[pid  5835] <... openat resumed>)       = 3
[pid  5835] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5835] close(3)                    = 0
[pid  5835] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5855 attached
 <unfinished ...>
[pid  5855] set_robust_list(0x55557f6ca660, 24) = 0
[pid  5855] chdir("./2" <unfinished ...>
[pid  5835] <... clone resumed>, child_tidptr=0x55557f6ca650) = 5855
[pid  5855] <... chdir resumed>)        = 0
[pid  5855] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5855] setpgid(0, 0 <unfinished ...>
[pid  5839] <... close resumed>)        = 0
[pid  5855] <... setpgid resumed>)      = 0
[pid  5855] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5839] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5853] <... munmap resumed>)       = 0
[pid  5855] <... openat resumed>)       = 3
[pid  5853] openat(AT_FDCWD, "/dev/loop3", O_RDWR./strace-static-x86_64: Process 5856 attached
 <unfinished ...>
[pid  5855] write(3, "1000", 4 <unfinished ...>
[pid  5853] <... openat resumed>)       = 4
[pid  5852] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5856] set_robust_list(0x55557f6ca660, 24 <unfinished ...>
[pid  5855] <... write resumed>)        = 4
[pid  5853] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  5852] <... openat resumed>)       = 4
[pid  5839] <... clone resumed>, child_tidptr=0x55557f6ca650) = 5856
[pid  5856] <... set_robust_list resumed>) = 0
[pid  5855] close(3 <unfinished ...>
[pid  5852] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  5856] chdir("./2" <unfinished ...>
[pid  5855] <... close resumed>)        = 0
[pid  5856] <... chdir resumed>)        = 0
[pid  5855] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid  5853] <... ioctl resumed>)        = 0
[pid  5852] <... ioctl resumed>)        = 0
executing program
[pid  5856] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5855] <... symlink resumed>)      = 0
[pid  5853] close(3 <unfinished ...>
[pid  5852] close(3 <unfinished ...>
[pid  5837] <... umount2 resumed>)      = 0
[pid  5856] <... prctl resumed>)        = 0
[pid  5855] write(1, "executing program\n", 18 <unfinished ...>
[pid  5853] <... close resumed>)        = 0
[pid  5852] <... close resumed>)        = 0
[pid  5837] umount2("./1/file1", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5856] setpgid(0, 0 <unfinished ...>
[pid  5855] <... write resumed>)        = 18
[pid  5853] close(4 <unfinished ...>
[pid  5852] close(4 <unfinished ...>
[pid  5837] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5856] <... setpgid resumed>)      = 0
[pid  5855] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5853] <... close resumed>)        = 0
[pid  5852] <... close resumed>)        = 0
[pid  5837] newfstatat(AT_FDCWD, "./1/file1",  <unfinished ...>
[pid  5856] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5855] <... memfd_create resumed>) = 3
[pid  5853] mkdir("./file1", 0777 <unfinished ...>
[pid  5852] mkdir("./file1", 0777 <unfinished ...>
[pid  5837] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5837] umount2("./1/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5837] openat(AT_FDCWD, "./1/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5853] <... mkdir resumed>)        = 0
[pid  5837] <... openat resumed>)       = 4
[pid  5856] <... openat resumed>)       = 3
[pid  5855] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5853] mount("/dev/loop3", "./file1", "jfs", MS_NOSUID|MS_NODEV|MS_POSIXACL|MS_STRICTATIME, "uid=0x0000000000000000,nointegrity,errors=remount-ro,errors=remount-ro,noquota,nointegrity,nointegri"... <unfinished ...>
[pid  5852] <... mkdir resumed>)        = 0
[pid  5837] newfstatat(4, "",  <unfinished ...>
[pid  5856] write(3, "1000", 4 <unfinished ...>
[pid  5855] <... mmap resumed>)         = 0x7f3a7f5d2000
[pid  5853] <... mount resumed>)        = 0
[pid  5852] mount("/dev/loop1", "./file1", "jfs", MS_NOSUID|MS_NODEV|MS_POSIXACL|MS_STRICTATIME, "uid=0x0000000000000000,nointegrity,errors=remount-ro,errors=remount-ro,noquota,nointegrity,nointegri"... <unfinished ...>
[pid  5856] <... write resumed>)        = 4
[pid  5856] close(3 <unfinished ...>
[pid  5853] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid  5837] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5856] <... close resumed>)        = 0
[pid  5853] <... openat resumed>)       = 3
[pid  5837] getdents64(4,  <unfinished ...>
[pid  5856] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid  5853] chdir("./file1" <unfinished ...>
[pid  5837] <... getdents64 resumed>0x55557f6d3730 /* 2 entries */, 32768) = 48
[pid  5853] <... chdir resumed>)        = 0
[pid  5852] <... mount resumed>)        = 0
[pid  5837] getdents64(4,  <unfinished ...>
[pid  5853] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5852] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid  5837] <... getdents64 resumed>0x55557f6d3730 /* 0 entries */, 32768) = 0
[pid  5853] <... openat resumed>)       = -1 EBUSY (Device or resource busy)
[pid  5852] <... openat resumed>)       = 3
[pid  5837] close(4 <unfinished ...>
[pid  5853] exit_group(0 <unfinished ...>
[pid  5852] chdir("./file1" <unfinished ...>
[pid  5837] <... close resumed>)        = 0
[pid  5853] <... exit_group resumed>)   = ?
[pid  5852] <... chdir resumed>)        = 0
[   62.887889][ T5852] loop1: detected capacity change from 0 to 32768
[   62.888293][ T5853] loop3: detected capacity change from 0 to 32768
[pid  5837] rmdir("./1/file1" <unfinished ...>
[pid  5856] <... symlink resumed>)      = 0
[pid  5853] +++ exited with 0 +++
[pid  5852] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5837] <... rmdir resumed>)        = 0
executing program
[pid  5856] write(1, "executing program\n", 18 <unfinished ...>
[pid  5852] <... openat resumed>)       = -1 EBUSY (Device or resource busy)
[pid  5837] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5856] <... write resumed>)        = 18
[pid  5852] exit_group(0 <unfinished ...>
[pid  5838] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5853, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=12 /* 0.12 s */} ---
[pid  5837] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5856] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5852] <... exit_group resumed>)   = ?
[pid  5838] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5837] newfstatat(AT_FDCWD, "./1/binderfs",  <unfinished ...>
[pid  5838] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5856] <... memfd_create resumed>) = 3
[pid  5852] +++ exited with 0 +++
[pid  5838] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5837] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5856] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5838] <... openat resumed>)       = 3
[pid  5837] unlink("./1/binderfs" <unfinished ...>
[pid  5836] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5852, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=15 /* 0.15 s */} ---
[pid  5856] <... mmap resumed>)         = 0x7f3a7f5d2000
[pid  5838] newfstatat(3, "",  <unfinished ...>
[pid  5837] <... unlink resumed>)       = 0
[pid  5838] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5837] getdents64(3,  <unfinished ...>
[pid  5838] getdents64(3, 0x55557f6cb6f0 /* 4 entries */, 32768) = 112
[pid  5836] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5838] umount2("./1/file1", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5837] <... getdents64 resumed>0x55557f6cb6f0 /* 0 entries */, 32768) = 0
[pid  5836] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5837] close(3 <unfinished ...>
[pid  5836] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5837] <... close resumed>)        = 0
[pid  5836] <... openat resumed>)       = 3
[pid  5836] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5836] getdents64(3,  <unfinished ...>
[pid  5837] rmdir("./1" <unfinished ...>
[pid  5836] <... getdents64 resumed>0x55557f6cb6f0 /* 4 entries */, 32768) = 112
[pid  5837] <... rmdir resumed>)        = 0
[pid  5837] mkdir("./2", 0777 <unfinished ...>
[pid  5836] umount2("./1/file1", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5837] <... mkdir resumed>)        = 0
[pid  5837] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  5837] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5837] close(3)                    = 0
[pid  5837] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557f6ca650) = 5857
./strace-static-x86_64: Process 5857 attached
[pid  5857] set_robust_list(0x55557f6ca660, 24) = 0
[pid  5857] chdir("./2")                = 0
[pid  5857] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5857] setpgid(0, 0)               = 0
[pid  5857] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5857] write(3, "1000", 4)         = 4
[pid  5857] close(3)                    = 0
[pid  5857] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid  5857] write(1, "executing program\n", 18) = 18
[pid  5857] memfd_create("syzkaller", 0) = 3
[pid  5857] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3a7f5d2000
[   63.086148][ T5836] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000006: 0000 [#1] SMP KASAN PTI
[   63.086171][ T5836] KASAN: null-ptr-deref in range [0x0000000000000030-0x0000000000000037]
[   63.086198][ T5836] CPU: 1 UID: 0 PID: 5836 Comm: syz-executor522 Tainted: G        W           6.17.0-rc1-syzkaller-00165-gee94b00c1a64 #0 PREEMPT_{RT,(full)} 
[   63.086222][ T5836] Tainted: [W]=WARN
[   63.086227][ T5836] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[   63.086241][ T5836] RIP: 0010:lmLogSync+0x22e/0x9d0
[   63.086280][ T5836] Code: fa bd fe 4d 8d 7e f0 4c 89 f8 48 c1 e8 03 80 3c 18 00 74 08 4c 89 ff e8 60 b3 e6 fe 4d 8b 3f 49 83 c7 30 4c 89 f8 48 c1 e8 03 <80> 3c 18 00 74 08 4c 89 ff e8 44 b3 e6 fe 49 8b 3f e8 5c fa bd fe
[   63.086293][ T5836] RSP: 0018:ffffc900048dfa80 EFLAGS: 00010206
[   63.086309][ T5836] RAX: 0000000000000006 RBX: dffffc0000000000 RCX: ffff888027729dc0
[   63.086321][ T5836] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   63.086331][ T5836] RBP: ffffc900048dfb88 R08: 0000000000000000 R09: 0000000000000000
[   63.086342][ T5836] R10: ffffc900048df868 R11: fffff5200091bf3a R12: 0000000000000000
[   63.086354][ T5836] R13: ffff888026db0800 R14: ffff888025a6de38 R15: 0000000000000030
[   63.086366][ T5836] FS:  000055557f6ca380(0000) GS:ffff8881269c5000(0000) knlGS:0000000000000000
[   63.086380][ T5836] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   63.086391][ T5836] CR2: 00007f3a7fab1000 CR3: 0000000044462000 CR4: 00000000003526f0
[   63.086405][ T5836] Call Trace:
[   63.086411][ T5836]  <TASK>
[   63.086418][ T5836]  ? _raw_spin_unlock_irqrestore+0xad/0x110
[   63.086440][ T5836]  ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10
[   63.086466][ T5836]  ? __pfx_lmLogSync+0x10/0x10
[   63.086489][ T5836]  ? jfs_syncpt+0x25/0x90
[   63.086511][ T5836]  jfs_syncpt+0x7b/0x90
[   63.086533][ T5836]  jfs_sync_fs+0x87/0xa0
[   63.086549][ T5836]  sync_filesystem+0xea/0x250
[   63.086572][ T5836]  generic_shutdown_super+0x6f/0x2c0
[   63.086590][ T5836]  kill_block_super+0x44/0x90
[   63.086608][ T5836]  deactivate_locked_super+0xbc/0x130
[   63.086625][ T5836]  cleanup_mnt+0x425/0x4c0
[   63.086643][ T5836]  task_work_run+0x1d1/0x260
[   63.086662][ T5836]  ? __pfx_task_work_run+0x10/0x10
[   63.086679][ T5836]  ? path_umount+0x1ea/0xb70
[   63.086699][ T5836]  ptrace_notify+0x281/0x2c0
[   63.086718][ T5836]  ? __pfx_ptrace_notify+0x10/0x10
[   63.086738][ T5836]  ? __x64_sys_umount+0x122/0x160
[   63.086756][ T5836]  ? __pfx___x64_sys_umount+0x10/0x10
[   63.086777][ T5836]  syscall_exit_work+0xc6/0x1d0
[   63.086800][ T5836]  do_syscall_64+0x2ad/0x3b0
[   63.086820][ T5836]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   63.086847][ T5836]  ? clear_bhb_loop+0x60/0xb0
[   63.086865][ T5836]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   63.086881][ T5836] RIP: 0033:0x7f3a87a1a637
[   63.086900][ T5836] Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8
[   63.086913][ T5836] RSP: 002b:00007ffd332b3208 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[   63.086929][ T5836] RAX: 0000000000000000 RBX: 000000000000f18a RCX: 00007f3a87a1a637
[   63.086940][ T5836] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd332b32c0
[   63.086950][ T5836] RBP: 00007ffd332b32c0 R08: 0000000000000000 R09: 0000000000000000
[   63.086961][ T5836] R10: 00000000ffffffff R11: 0000000000000202 R12: 00007ffd332b4330
[   63.086972][ T5836] R13: 000055557f6cb6c0 R14: 431bde82d7b634db R15: 00007ffd332b4350
[   63.086989][ T5836]  </TASK>
[   63.086996][ T5836] Modules linked in:
[   63.087013][ T5836] ---[ end trace 0000000000000000 ]---
[   63.087025][ T5836] RIP: 0010:lmLogSync+0x22e/0x9d0
[   63.087053][ T5836] Code: fa bd fe 4d 8d 7e f0 4c 89 f8 48 c1 e8 03 80 3c 18 00 74 08 4c 89 ff e8 60 b3 e6 fe 4d 8b 3f 49 83 c7 30 4c 89 f8 48 c1 e8 03 <80> 3c 18 00 74 08 4c 89 ff e8 44 b3 e6 fe 49 8b 3f e8 5c fa bd fe
[   63.087066][ T5836] RSP: 0018:ffffc900048dfa80 EFLAGS: 00010206
[   63.087080][ T5836] RAX: 0000000000000006 RBX: dffffc0000000000 RCX: ffff888027729dc0
[   63.087092][ T5836] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   63.087102][ T5836] RBP: ffffc900048dfb88 R08: 0000000000000000 R09: 0000000000000000
[   63.087112][ T5836] R10: ffffc900048df868 R11: fffff5200091bf3a R12: 0000000000000000
[   63.087123][ T5836] R13: ffff888026db0800 R14: ffff888025a6de38 R15: 0000000000000030
[   63.087136][ T5836] FS:  000055557f6ca380(0000) GS:ffff8881269c5000(0000) knlGS:0000000000000000
[   63.087150][ T5836] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   63.087163][ T5836] CR2: 00007f3a7fab1000 CR3: 0000000044462000 CR4: 00000000003526f0
[   63.087179][ T5836] Kernel panic - not syncing: Fatal exception
[   63.087662][ T5836] Kernel Offset: disabled