./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2447745041

<...>
Warning: Permanently added '10.128.1.174' (ED25519) to the list of known hosts.
execve("./syz-executor2447745041", ["./syz-executor2447745041"], 0x7fff8e08c240 /* 10 vars */) = 0
brk(NULL)                               = 0x5555697e7000
brk(0x5555697e7d00)                     = 0x5555697e7d00
arch_prctl(ARCH_SET_FS, 0x5555697e7380) = 0
set_tid_address(0x5555697e7650)         = 5842
set_robust_list(0x5555697e7660, 24)     = 0
rseq(0x5555697e7ca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor2447745041", 4096) = 28
getrandom("\xe9\x44\xfd\xdf\x50\x04\x53\x2f", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x5555697e7d00
brk(0x555569808d00)                     = 0x555569808d00
brk(0x555569809000)                     = 0x555569809000
mprotect(0x7f1172d4a000, 16384, PROT_READ) = 0
mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000
mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000
mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5843 attached
, child_tidptr=0x5555697e7650) = 5843
[pid  5843] set_robust_list(0x5555697e7660, 24 <unfinished ...>
[pid  5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5843] <... set_robust_list resumed>) = 0
[pid  5843] mkdir("./syzkaller.UcShrO", 0700./strace-static-x86_64: Process 5844 attached
 <unfinished ...>
[pid  5844] set_robust_list(0x5555697e7660, 24 <unfinished ...>
[pid  5842] <... clone resumed>, child_tidptr=0x5555697e7650) = 5844
[pid  5844] <... set_robust_list resumed>) = 0
[pid  5844] mkdir("./syzkaller.VY6nim", 0700 <unfinished ...>
[pid  5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5843] <... mkdir resumed>)        = 0
[pid  5844] <... mkdir resumed>)        = 0
[pid  5843] chmod("./syzkaller.UcShrO", 0777) = 0
[pid  5844] chmod("./syzkaller.VY6nim", 0777./strace-static-x86_64: Process 5845 attached
) = 0
[pid  5843] chdir("./syzkaller.UcShrO" <unfinished ...>
[pid  5845] set_robust_list(0x5555697e7660, 24 <unfinished ...>
[pid  5842] <... clone resumed>, child_tidptr=0x5555697e7650) = 5845
[pid  5844] chdir("./syzkaller.VY6nim" <unfinished ...>
[pid  5843] <... chdir resumed>)        = 0
[pid  5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5844] <... chdir resumed>)        = 0
[pid  5843] mkdir("./0", 0777 <unfinished ...>
[pid  5845] <... set_robust_list resumed>) = 0
[pid  5845] mkdir("./syzkaller.lkh84C", 0700 <unfinished ...>
[pid  5844] mkdir("./0", 0777./strace-static-x86_64: Process 5846 attached
 <unfinished ...>
[pid  5845] <... mkdir resumed>)        = 0
[pid  5844] <... mkdir resumed>)        = 0
[pid  5842] <... clone resumed>, child_tidptr=0x5555697e7650) = 5846
[pid  5846] set_robust_list(0x5555697e7660, 24 <unfinished ...>
[pid  5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5846] <... set_robust_list resumed>) = 0
[pid  5844] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5845] chmod("./syzkaller.lkh84C", 0777 <unfinished ...>
[pid  5843] <... mkdir resumed>)        = 0
./strace-static-x86_64: Process 5847 attached
[pid  5846] mkdir("./syzkaller.tQvR1G", 0700 <unfinished ...>
[pid  5844] <... openat resumed>)       = 3
[pid  5842] <... clone resumed>, child_tidptr=0x5555697e7650) = 5847
[pid  5845] <... chmod resumed>)        = 0
[pid  5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5847] set_robust_list(0x5555697e7660, 24) = 0
[pid  5847] getrandom( <unfinished ...>
[pid  5845] chdir("./syzkaller.lkh84C" <unfinished ...>
[pid  5844] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5843] <... openat resumed>)       = 3
[pid  5845] <... chdir resumed>)        = 0
[pid  5843] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5847] <... getrandom resumed>"\xf3\x61\x08\x63\xce\x9e\xdb\x85", 8, GRND_NONBLOCK) = 8
[pid  5846] <... mkdir resumed>)        = 0
[pid  5845] mkdir("./0", 0777 <unfinished ...>
[pid  5844] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  5843] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  5847] mkdir("./syzkaller.NGRGqX", 0700 <unfinished ...>
[pid  5846] chmod("./syzkaller.tQvR1G", 0777 <unfinished ...>
[pid  5843] close(3 <unfinished ...>
[pid  5847] <... mkdir resumed>)        = 0
[pid  5846] <... chmod resumed>)        = 0
[pid  5845] <... mkdir resumed>)        = 0
[pid  5844] close(3 <unfinished ...>
[pid  5843] <... close resumed>)        = 0
[pid  5844] <... close resumed>)        = 0
[pid  5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5848 attached
 <unfinished ...>
[pid  5847] chmod("./syzkaller.NGRGqX", 0777 <unfinished ...>
[pid  5846] chdir("./syzkaller.tQvR1G" <unfinished ...>
[pid  5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5847] <... chmod resumed>)        = 0
[pid  5846] <... chdir resumed>)        = 0
[pid  5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR./strace-static-x86_64: Process 5849 attached
 <unfinished ...>
[pid  5848] set_robust_list(0x5555697e7660, 24 <unfinished ...>
[pid  5849] set_robust_list(0x5555697e7660, 24 <unfinished ...>
[pid  5848] <... set_robust_list resumed>) = 0
[pid  5847] chdir("./syzkaller.NGRGqX" <unfinished ...>
[pid  5846] mkdir("./0", 0777 <unfinished ...>
[pid  5845] <... openat resumed>)       = 3
[pid  5849] <... set_robust_list resumed>) = 0
[pid  5845] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5844] <... clone resumed>, child_tidptr=0x5555697e7650) = 5848
[pid  5845] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  5845] close(3 <unfinished ...>
[pid  5843] <... clone resumed>, child_tidptr=0x5555697e7650) = 5849
[pid  5846] <... mkdir resumed>)        = 0
[pid  5845] <... close resumed>)        = 0
[pid  5849] chdir("./0" <unfinished ...>
[pid  5848] chdir("./0" <unfinished ...>
[pid  5847] <... chdir resumed>)        = 0
[pid  5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5848] <... chdir resumed>)        = 0
[pid  5849] <... chdir resumed>)        = 0
[pid  5848] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5847] mkdir("./0", 0777./strace-static-x86_64: Process 5850 attached
 <unfinished ...>
[pid  5846] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5850] set_robust_list(0x5555697e7660, 24) = 0
[pid  5847] <... mkdir resumed>)        = 0
[pid  5850] chdir("./0")                = 0
[pid  5849] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5848] <... prctl resumed>)        = 0
[pid  5847] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5846] <... openat resumed>)       = 3
[pid  5845] <... clone resumed>, child_tidptr=0x5555697e7650) = 5850
[pid  5849] <... prctl resumed>)        = 0
[pid  5848] setpgid(0, 0 <unfinished ...>
[pid  5846] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5850] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5848] <... setpgid resumed>)      = 0
[pid  5847] <... openat resumed>)       = 3
[pid  5850] <... prctl resumed>)        = 0
[pid  5849] setpgid(0, 0 <unfinished ...>
[pid  5846] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  5850] setpgid(0, 0 <unfinished ...>
[pid  5848] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5847] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5850] <... setpgid resumed>)      = 0
[pid  5850] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5849] <... setpgid resumed>)      = 0
[pid  5848] <... openat resumed>)       = 3
[pid  5846] close(3 <unfinished ...>
[pid  5847] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  5850] <... openat resumed>)       = 3
[pid  5849] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5848] write(3, "1000", 4 <unfinished ...>
[pid  5847] close(3 <unfinished ...>
[pid  5846] <... close resumed>)        = 0
[pid  5850] write(3, "1000", 4 <unfinished ...>
[pid  5847] <... close resumed>)        = 0
[pid  5846] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5850] <... write resumed>)        = 4
[pid  5850] close(3)                    = 0
[pid  5850] symlink("/dev/binderfs", "./binderfs") = 0
./strace-static-x86_64: Process 5851 attached
[pid  5849] <... openat resumed>)       = 3
[pid  5848] <... write resumed>)        = 4
[pid  5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5853 attached
 <unfinished ...>
[pid  5851] set_robust_list(0x5555697e7660, 24 <unfinished ...>
[pid  5850] write(1, "executing program\n", 18 <unfinished ...>
[pid  5849] write(3, "1000", 4 <unfinished ...>
[pid  5848] close(3 <unfinished ...>
[pid  5846] <... clone resumed>, child_tidptr=0x5555697e7650) = 5851
[pid  5853] set_robust_list(0x5555697e7660, 24 <unfinished ...>
[pid  5851] <... set_robust_list resumed>) = 0
[pid  5848] <... close resumed>)        = 0
[pid  5847] <... clone resumed>, child_tidptr=0x5555697e7650) = 5853
executing program
[pid  5853] <... set_robust_list resumed>) = 0
[pid  5851] chdir("./0" <unfinished ...>
[pid  5850] <... write resumed>)        = 18
[pid  5848] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid  5849] <... write resumed>)        = 4
[pid  5853] chdir("./0" <unfinished ...>
[pid  5851] <... chdir resumed>)        = 0
[pid  5850] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5849] close(3 <unfinished ...>
[pid  5848] <... symlink resumed>)      = 0
[pid  5853] <... chdir resumed>)        = 0
[pid  5851] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5849] <... close resumed>)        = 0
[pid  5848] write(1, "executing program\n", 18 <unfinished ...>
[pid  5853] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5851] <... prctl resumed>)        = 0
executing program
[pid  5849] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid  5848] <... write resumed>)        = 18
[pid  5853] <... prctl resumed>)        = 0
[pid  5851] setpgid(0, 0 <unfinished ...>
[pid  5850] <... memfd_create resumed>) = 3
[pid  5849] <... symlink resumed>)      = 0
[pid  5848] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5853] setpgid(0, 0 <unfinished ...>
[pid  5851] <... setpgid resumed>)      = 0
[pid  5851] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5853] <... setpgid resumed>)      = 0
[pid  5851] <... openat resumed>)       = 3
[pid  5853] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5851] write(3, "1000", 4 <unfinished ...>
[pid  5848] <... memfd_create resumed>) = 3
[pid  5851] <... write resumed>)        = 4
[pid  5853] <... openat resumed>)       = 3
[pid  5851] close(3 <unfinished ...>
[pid  5848] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5851] <... close resumed>)        = 0
[pid  5851] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid  5853] write(3, "1000", 4 <unfinished ...>
[pid  5851] <... symlink resumed>)      = 0
[pid  5850] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0executing program
 <unfinished ...>
[pid  5849] write(1, "executing program\n", 18 <unfinished ...>
[pid  5848] <... mmap resumed>)         = 0x7f116a800000
[pid  5853] <... write resumed>)        = 4
[pid  5851] write(1, "executing program\n", 18executing program
 <unfinished ...>
[pid  5850] <... mmap resumed>)         = 0x7f116a800000
[pid  5849] <... write resumed>)        = 18
[pid  5851] <... write resumed>)        = 18
[pid  5853] close(3)                    = 0
[pid  5853] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5851] memfd_create("syzkaller", 0) = 3
[pid  5853] write(1, "executing program\n", 18 <unfinished ...>
[pid  5849] memfd_create("syzkaller", 0) = 3
executing program
[pid  5853] <... write resumed>)        = 18
[pid  5851] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5853] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5851] <... mmap resumed>)         = 0x7f116a800000
[pid  5849] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5853] <... memfd_create resumed>) = 3
[pid  5849] <... mmap resumed>)         = 0x7f116a800000
[pid  5853] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f116a800000
[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  5849] 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(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] 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  5848] 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  5850] <... write resumed>)        = 16777216
[pid  5850] munmap(0x7f116a800000, 138412032 <unfinished ...>
[pid  5849] <... write resumed>)        = 16777216
[pid  5849] munmap(0x7f116a800000, 138412032 <unfinished ...>
[pid  5850] <... munmap resumed>)       = 0
[pid  5850] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4
[pid  5850] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5850] close(3 <unfinished ...>
[pid  5849] <... munmap resumed>)       = 0
[pid  5848] <... write resumed>)        = 16777216
[pid  5851] <... write resumed>)        = 16777216
[pid  5850] <... close resumed>)        = 0
[pid  5848] munmap(0x7f116a800000, 138412032 <unfinished ...>
[pid  5851] munmap(0x7f116a800000, 138412032 <unfinished ...>
[pid  5850] close(4)                    = 0
[pid  5849] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5849] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5850] mkdir("./file1", 0777 <unfinished ...>
[pid  5849] close(3)                    = 0
[pid  5849] close(4)                    = 0
[pid  5849] mkdir("./file1", 0777 <unfinished ...>
[pid  5850] <... mkdir resumed>)        = 0
[pid  5849] <... mkdir resumed>)        = 0
[pid  5848] <... munmap resumed>)       = 0
[pid  5850] mount("/dev/loop2", "./file1", "jfs", MS_NODEV|MS_SYNCHRONOUS|MS_NODIRATIME|MS_REC|MS_SILENT|MS_POSIXACL|MS_STRICTATIME, "nodiscard,quota,iocharset=cp950,grpquota,quota,noquota,nointegrity" <unfinished ...>
[pid  5851] <... munmap resumed>)       = 0
[pid  5853] <... write resumed>)        = 16777216
[pid  5851] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5850] <... mount resumed>)        = 0
[pid  5849] mount("/dev/loop0", "./file1", "jfs", MS_NODEV|MS_SYNCHRONOUS|MS_NODIRATIME|MS_REC|MS_SILENT|MS_POSIXACL|MS_STRICTATIME, "nodiscard,quota,iocharset=cp950,grpquota,quota,noquota,nointegrity" <unfinished ...>
[pid  5848] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5853] munmap(0x7f116a800000, 138412032 <unfinished ...>
[pid  5851] <... openat resumed>)       = 4
[pid  5850] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid  5851] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  5850] <... openat resumed>)       = 3
[pid  5848] <... openat resumed>)       = 4
syzkaller login: [   62.340307][ T5850] loop2: detected capacity change from 0 to 32768
[   62.369599][ T5849] loop0: detected capacity change from 0 to 32768
[pid  5850] chdir("./file1")            = 0
[pid  5850] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5850] exit_group(0)               = ?
[pid  5851] <... ioctl resumed>)        = 0
[pid  5849] <... mount resumed>)        = 0
[pid  5848] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  5850] +++ exited with 0 +++
[pid  5849] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid  5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5850, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=24 /* 0.24 s */} ---
[pid  5849] chdir("./file1" <unfinished ...>
[pid  5845] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5849] <... chdir resumed>)        = 0
[pid  5845] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5849] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5845] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5853] <... munmap resumed>)       = 0
[pid  5851] close(3 <unfinished ...>
[pid  5849] <... openat resumed>)       = -1 EBUSY (Device or resource busy)
[pid  5845] <... openat resumed>)       = 3
[pid  5851] <... close resumed>)        = 0
[pid  5845] newfstatat(3, "",  <unfinished ...>
[pid  5851] close(4 <unfinished ...>
[pid  5845] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5845] getdents64(3, 0x5555697e86f0 /* 4 entries */, 32768) = 112
[pid  5851] <... close resumed>)        = 0
[pid  5849] exit_group(0 <unfinished ...>
[pid  5845] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5849] <... exit_group resumed>)   = ?
[pid  5845] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5849] +++ exited with 0 +++
[pid  5845] newfstatat(AT_FDCWD, "./0/binderfs",  <unfinished ...>
[pid  5853] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5845] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5849, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=24 /* 0.24 s */} ---
[pid  5853] <... openat resumed>)       = 4
[pid  5845] unlink("./0/binderfs" <unfinished ...>
[pid  5853] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  5845] <... unlink resumed>)       = 0
[pid  5851] mkdir("./file1", 0777 <unfinished ...>
[pid  5843] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5843] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[   62.419898][ T5851] loop3: detected capacity change from 0 to 32768
[   62.433842][ T5848] loop1: detected capacity change from 0 to 32768
[pid  5843] newfstatat(3, "",  <unfinished ...>
[pid  5851] <... mkdir resumed>)        = 0
[pid  5848] <... ioctl resumed>)        = 0
[pid  5843] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5851] mount("/dev/loop3", "./file1", "jfs", MS_NODEV|MS_SYNCHRONOUS|MS_NODIRATIME|MS_REC|MS_SILENT|MS_POSIXACL|MS_STRICTATIME, "nodiscard,quota,iocharset=cp950,grpquota,quota,noquota,nointegrity" <unfinished ...>
[pid  5843] getdents64(3,  <unfinished ...>
[pid  5848] close(3 <unfinished ...>
[pid  5845] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5843] <... getdents64 resumed>0x5555697e86f0 /* 4 entries */, 32768) = 112
[pid  5848] <... close resumed>)        = 0
[pid  5848] close(4 <unfinished ...>
[pid  5843] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5848] <... close resumed>)        = 0
[pid  5843] newfstatat(AT_FDCWD, "./0/binderfs",  <unfinished ...>
[pid  5848] mkdir("./file1", 0777 <unfinished ...>
[pid  5843] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5843] unlink("./0/binderfs" <unfinished ...>
[pid  5848] <... mkdir resumed>)        = 0
[pid  5843] <... unlink resumed>)       = 0
[pid  5843] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[   62.460563][ T5853] loop4: detected capacity change from 0 to 32768
[   62.483309][ T5843] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000006: 0000 [#1] PREEMPT SMP KASAN PTI
[   62.495941][ T5843] KASAN: null-ptr-deref in range [0x0000000000000030-0x0000000000000037]
[pid  5848] mount("/dev/loop1", "./file1", "jfs", MS_NODEV|MS_SYNCHRONOUS|MS_NODIRATIME|MS_REC|MS_SILENT|MS_POSIXACL|MS_STRICTATIME, "nodiscard,quota,iocharset=cp950,grpquota,quota,noquota,nointegrity" <unfinished ...>
[pid  5853] <... ioctl resumed>)        = 0
[pid  5851] <... mount resumed>)        = 0
[pid  5853] close(3 <unfinished ...>
[pid  5851] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid  5853] <... close resumed>)        = 0
[pid  5851] <... openat resumed>)       = 3
[pid  5853] close(4 <unfinished ...>
[pid  5851] chdir("./file1")            = 0
[pid  5853] <... close resumed>)        = 0
[pid  5853] mkdir("./file1", 0777)      = 0
[pid  5851] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5853] mount("/dev/loop4", "./file1", "jfs", MS_NODEV|MS_SYNCHRONOUS|MS_NODIRATIME|MS_REC|MS_SILENT|MS_POSIXACL|MS_STRICTATIME, "nodiscard,quota,iocharset=cp950,grpquota,quota,noquota,nointegrity" <unfinished ...>
[pid  5851] exit_group(0)               = ?
[pid  5851] +++ exited with 0 +++
[   62.504507][ T5843] CPU: 1 UID: 0 PID: 5843 Comm: syz-executor244 Not tainted 6.12.0-syzkaller-07834-g06afb0f36106 #0
[   62.515289][ T5843] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
[   62.525379][ T5843] RIP: 0010:lmLogSync+0x228/0xae0
[   62.530467][ T5843] Code: ab fe 49 8d 5f f0 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 96 38 db fe 48 8b 1b 48 83 c3 30 48 89 d8 48 c1 e8 03 <42> 80 3c 28 00 74 08 48 89 df e8 79 38 db fe 48 8b 3b e8 21 d0 ab
[   62.550096][ T5843] RSP: 0018:ffffc90003f27a40 EFLAGS: 00010206
[pid  5846] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5851, si_uid=0, si_status=0, si_utime=15 /* 0.15 s */, si_stime=18 /* 0.18 s */} ---
[pid  5846] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  5846] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5846] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5846] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[   62.556190][ T5843] RAX: 0000000000000006 RBX: 0000000000000030 RCX: ffff88807cbdda00
[   62.564190][ T5843] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   62.572167][ T5843] RBP: ffffc90003f27b48 R08: ffffffff81cd7ade R09: 0000000000000000
[   62.580166][ T5843] R10: ffffc90003f27828 R11: fffff520007e4f34 R12: ffff888026e13000
[   62.588133][ T5843] R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88803280b638
[   62.596119][ T5843] FS:  00005555697e7380(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
[pid  5846] getdents64(3, 0x5555697e86f0 /* 4 entries */, 32768) = 112
[pid  5846] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5846] newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5846] unlink("./0/binderfs")      = 0
[   62.605050][ T5843] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   62.611639][ T5843] CR2: 00005555697f06f8 CR3: 0000000076a44000 CR4: 00000000003526f0
[   62.619710][ T5843] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   62.627684][ T5843] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   62.635656][ T5843] Call Trace:
[   62.638927][ T5843]  <TASK>
[   62.641846][ T5843]  ? __die_body+0x5f/0xb0
[   62.646164][ T5843]  ? die_addr+0xb0/0xe0
[   62.650303][ T5843]  ? exc_general_protection+0x3dd/0x5d0
[   62.656023][ T5843]  ? asm_exc_general_protection+0x26/0x30
[   62.661731][ T5843]  ? filemap_flush+0x17e/0x260
[   62.666517][ T5843]  ? lmLogSync+0x228/0xae0
[   62.670922][ T5843]  ? __pfx_lmLogSync+0x10/0x10
[   62.675783][ T5843]  ? __pfx_dquot_writeback_dquots+0x10/0x10
[   62.681687][ T5843]  jfs_syncpt+0x7d/0xa0
[   62.685839][ T5843]  jfs_sync_fs+0x8a/0xa0
[   62.690062][ T5843]  sync_filesystem+0x1c8/0x230
[   62.694818][ T5843]  generic_shutdown_super+0x72/0x2d0
[   62.700096][ T5843]  kill_block_super+0x44/0x90
[   62.704766][ T5843]  deactivate_locked_super+0xc4/0x130
[   62.710120][ T5843]  cleanup_mnt+0x41f/0x4b0
[   62.714520][ T5843]  ? lockdep_hardirqs_on+0x99/0x150
[   62.719714][ T5843]  task_work_run+0x24f/0x310
[   62.724314][ T5843]  ? __pfx_task_work_run+0x10/0x10
[   62.729428][ T5843]  ? path_umount+0x284/0xf70
[   62.734011][ T5843]  ptrace_notify+0x2d2/0x380
[   62.738609][ T5843]  ? __pfx_ptrace_notify+0x10/0x10
[   62.743790][ T5843]  ? __x64_sys_umount+0x123/0x170
[   62.748801][ T5843]  syscall_exit_work+0xe3/0x220
[   62.753634][ T5843]  syscall_exit_to_user_mode+0x24a/0x340
[   62.759253][ T5843]  do_syscall_64+0x100/0x230
[   62.763912][ T5843]  ? clear_bhb_loop+0x35/0x90
[   62.768576][ T5843]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   62.774462][ T5843] RIP: 0033:0x7f1172cd14b7
[   62.778869][ T5843] 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
[   62.798462][ T5843] RSP: 002b:00007fff14eb3c78 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6
[   62.806857][ T5843] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f1172cd14b7
[   62.814808][ T5843] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff14eb3d30
[   62.822773][ T5843] RBP: 00007fff14eb3d30 R08: 0000000000000000 R09: 0000000000000000
[   62.830752][ T5843] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007fff14eb4d90
[   62.838707][ T5843] R13: 00005555697e86c0 R14: 0000000000000001 R15: 431bde82d7b634db
[   62.846672][ T5843]  </TASK>
[   62.849673][ T5843] Modules linked in:
[   62.853798][ T5843] ---[ end trace 0000000000000000 ]---
[   62.859427][ T5843] RIP: 0010:lmLogSync+0x228/0xae0
[   62.864534][ T5843] Code: ab fe 49 8d 5f f0 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 96 38 db fe 48 8b 1b 48 83 c3 30 48 89 d8 48 c1 e8 03 <42> 80 3c 28 00 74 08 48 89 df e8 79 38 db fe 48 8b 3b e8 21 d0 ab
[   62.884279][ T5843] RSP: 0018:ffffc90003f27a40 EFLAGS: 00010206
[   62.890551][ T5843] RAX: 0000000000000006 RBX: 0000000000000030 RCX: ffff88807cbdda00
[   62.898636][ T5843] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   62.906620][ T5843] RBP: ffffc90003f27b48 R08: ffffffff81cd7ade R09: 0000000000000000
[   62.914851][ T5843] R10: ffffc90003f27828 R11: fffff520007e4f34 R12: ffff888026e13000
[   62.922886][ T5843] R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88803280b638
[   62.930902][ T5843] FS:  00005555697e7380(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
[   62.939976][ T5843] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   62.946587][ T5843] CR2: 00005555697f06f8 CR3: 0000000076a44000 CR4: 00000000003526f0
[   62.954595][ T5843] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   62.962623][ T5843] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   62.970637][ T5843] Kernel panic - not syncing: Fatal exception
[   62.976998][ T5843] Kernel Offset: disabled
[   62.981314][ T5843] Rebooting in 86400 seconds..