./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1378248219 <...> Warning: Permanently added '10.128.0.61' (ED25519) to the list of known hosts. execve("./syz-executor1378248219", ["./syz-executor1378248219"], 0x7ffd0202ad70 /* 10 vars */) = 0 brk(NULL) = 0x5555707f5000 brk(0x5555707f5d00) = 0x5555707f5d00 arch_prctl(ARCH_SET_FS, 0x5555707f5380) = 0 set_tid_address(0x5555707f5650) = 5840 set_robust_list(0x5555707f5660, 24) = 0 rseq(0x5555707f5ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1378248219", 4096) = 28 getrandom("\xe1\x51\xec\xc4\xa3\x8a\x6d\x7a", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555707f5d00 brk(0x555570816d00) = 0x555570816d00 brk(0x555570817000) = 0x555570817000 mprotect(0x7f8cf20ff000, 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 5841 attached , child_tidptr=0x5555707f5650) = 5841 [pid 5841] set_robust_list(0x5555707f5660, 24) = 0 [pid 5840] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5841] mkdir("./syzkaller.W0aURv", 0700./strace-static-x86_64: Process 5842 attached [pid 5840] <... clone resumed>, child_tidptr=0x5555707f5650) = 5842 [pid 5840] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5843 attached [pid 5843] set_robust_list(0x5555707f5660, 24 [pid 5842] set_robust_list(0x5555707f5660, 24 [pid 5841] <... mkdir resumed>) = 0 [pid 5840] <... clone resumed>, child_tidptr=0x5555707f5650) = 5843 [pid 5843] <... set_robust_list resumed>) = 0 [pid 5840] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] <... set_robust_list resumed>) = 0 [pid 5841] chmod("./syzkaller.W0aURv", 0777./strace-static-x86_64: Process 5844 attached [pid 5843] mkdir("./syzkaller.j8Qx3u", 0700 [pid 5842] mkdir("./syzkaller.wouUbA", 0700) = 0 [pid 5841] <... chmod resumed>) = 0 [pid 5843] <... mkdir resumed>) = 0 [pid 5844] set_robust_list(0x5555707f5660, 24 [pid 5840] <... clone resumed>, child_tidptr=0x5555707f5650) = 5844 [pid 5844] <... set_robust_list resumed>) = 0 [pid 5843] chmod("./syzkaller.j8Qx3u", 0777 [pid 5842] chmod("./syzkaller.wouUbA", 0777 [pid 5841] chdir("./syzkaller.W0aURv" [pid 5840] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] mkdir("./syzkaller.N5LMti", 0700 [pid 5841] <... chdir resumed>) = 0 [pid 5841] mkdir("./0", 0777./strace-static-x86_64: Process 5845 attached [pid 5844] <... mkdir resumed>) = 0 [pid 5843] <... chmod resumed>) = 0 [pid 5842] <... chmod resumed>) = 0 [pid 5840] <... clone resumed>, child_tidptr=0x5555707f5650) = 5845 [pid 5845] set_robust_list(0x5555707f5660, 24 [pid 5844] chmod("./syzkaller.N5LMti", 0777 [pid 5845] <... set_robust_list resumed>) = 0 [pid 5843] chdir("./syzkaller.j8Qx3u" [pid 5842] chdir("./syzkaller.wouUbA" [pid 5841] <... mkdir resumed>) = 0 [pid 5844] <... chmod resumed>) = 0 [pid 5843] <... chdir resumed>) = 0 [pid 5842] <... chdir resumed>) = 0 [pid 5845] mkdir("./syzkaller.cQFVbG", 0700 [pid 5844] chdir("./syzkaller.N5LMti" [pid 5843] mkdir("./0", 0777 [pid 5842] mkdir("./0", 0777 [pid 5841] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5843] <... mkdir resumed>) = 0 [pid 5841] <... openat resumed>) = 3 [pid 5845] <... mkdir resumed>) = 0 [pid 5844] <... chdir resumed>) = 0 [pid 5842] <... mkdir resumed>) = 0 [pid 5843] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5845] chmod("./syzkaller.cQFVbG", 0777 [pid 5844] mkdir("./0", 0777 [pid 5843] ioctl(3, LOOP_CLR_FD [pid 5842] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5841] ioctl(3, LOOP_CLR_FD [pid 5845] <... chmod resumed>) = 0 [pid 5844] <... mkdir resumed>) = 0 [pid 5843] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5842] <... openat resumed>) = 3 [pid 5841] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5844] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5845] chdir("./syzkaller.cQFVbG" [pid 5843] close(3 [pid 5842] ioctl(3, LOOP_CLR_FD [pid 5841] close(3 [pid 5845] <... chdir resumed>) = 0 [pid 5844] <... openat resumed>) = 3 [pid 5843] <... close resumed>) = 0 [pid 5842] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5841] <... close resumed>) = 0 [pid 5841] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] mkdir("./0", 0777 [pid 5844] ioctl(3, LOOP_CLR_FD [pid 5843] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] close(3./strace-static-x86_64: Process 5847 attached ./strace-static-x86_64: Process 5846 attached [pid 5845] <... mkdir resumed>) = 0 [pid 5844] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5842] <... close resumed>) = 0 [pid 5844] close(3) = 0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5848 attached [pid 5847] set_robust_list(0x5555707f5660, 24 [pid 5846] set_robust_list(0x5555707f5660, 24 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5849 attached [pid 5847] <... set_robust_list resumed>) = 0 [pid 5846] <... set_robust_list resumed>) = 0 [pid 5845] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5848] set_robust_list(0x5555707f5660, 24 [pid 5847] chdir("./0" [pid 5846] chdir("./0" [pid 5845] <... openat resumed>) = 3 [pid 5849] set_robust_list(0x5555707f5660, 24 [pid 5848] <... set_robust_list resumed>) = 0 [pid 5847] <... chdir resumed>) = 0 [pid 5846] <... chdir resumed>) = 0 [pid 5845] ioctl(3, LOOP_CLR_FD [pid 5844] <... clone resumed>, child_tidptr=0x5555707f5650) = 5849 [pid 5843] <... clone resumed>, child_tidptr=0x5555707f5650) = 5847 [pid 5842] <... clone resumed>, child_tidptr=0x5555707f5650) = 5848 [pid 5841] <... clone resumed>, child_tidptr=0x5555707f5650) = 5846 [pid 5849] <... set_robust_list resumed>) = 0 [pid 5848] chdir("./0" [pid 5847] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5846] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5845] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5846] <... prctl resumed>) = 0 [pid 5849] chdir("./0" [pid 5848] <... chdir resumed>) = 0 [pid 5847] <... prctl resumed>) = 0 [pid 5846] setpgid(0, 0 [pid 5845] close(3 [pid 5849] <... chdir resumed>) = 0 [pid 5848] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5849] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5846] <... setpgid resumed>) = 0 [pid 5849] <... prctl resumed>) = 0 [pid 5847] setpgid(0, 0 [pid 5846] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5849] setpgid(0, 0 [pid 5848] <... prctl resumed>) = 0 [pid 5847] <... setpgid resumed>) = 0 [pid 5845] <... close resumed>) = 0 [pid 5849] <... setpgid resumed>) = 0 [pid 5848] setpgid(0, 0 [pid 5846] <... openat resumed>) = 3 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5851 attached [pid 5849] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5848] <... setpgid resumed>) = 0 [pid 5847] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5846] write(3, "1000", 4 [pid 5849] <... openat resumed>) = 3 [pid 5848] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5851] set_robust_list(0x5555707f5660, 24 [pid 5849] write(3, "1000", 4 [pid 5846] <... write resumed>) = 4 [pid 5851] <... set_robust_list resumed>) = 0 [pid 5849] <... write resumed>) = 4 [pid 5848] <... openat resumed>) = 3 [pid 5847] <... openat resumed>) = 3 [pid 5846] close(3 [pid 5851] chdir("./0" [pid 5849] close(3 [pid 5848] write(3, "1000", 4 [pid 5847] write(3, "1000", 4 [pid 5851] <... chdir resumed>) = 0 [pid 5849] <... close resumed>) = 0 [pid 5847] <... write resumed>) = 4 [pid 5846] <... close resumed>) = 0 [pid 5851] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5849] symlink("/dev/binderfs", "./binderfs" [pid 5848] <... write resumed>) = 4 [pid 5847] close(3 [pid 5846] symlink("/dev/binderfs", "./binderfs" [pid 5845] <... clone resumed>, child_tidptr=0x5555707f5650) = 5851 [pid 5851] <... prctl resumed>) = 0 [pid 5848] close(3 [pid 5849] <... symlink resumed>) = 0 [pid 5848] <... close resumed>) = 0 [pid 5848] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5847] <... close resumed>) = 0 [pid 5846] <... symlink resumed>) = 0 executing program executing program [pid 5851] setpgid(0, 0 [pid 5849] write(1, "executing program\n", 18 [pid 5848] write(1, "executing program\n", 18 [pid 5847] symlink("/dev/binderfs", "./binderfs" [pid 5846] write(1, "executing program\n", 18 [pid 5851] <... setpgid resumed>) = 0 [pid 5849] <... write resumed>) = 18 [pid 5848] <... write resumed>) = 18 executing program [pid 5849] memfd_create("syzkaller", 0 [pid 5848] memfd_create("syzkaller", 0 [pid 5846] <... write resumed>) = 18 [pid 5851] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5848] <... memfd_create resumed>) = 3 [pid 5847] <... symlink resumed>) = 0 [pid 5851] <... openat resumed>) = 3 [pid 5848] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5846] memfd_create("syzkaller", 0 [pid 5849] <... memfd_create resumed>) = 3 [pid 5848] <... mmap resumed>) = 0x7f8ce9c00000 [pid 5847] write(1, "executing program\n", 18executing program [pid 5851] write(3, "1000", 4 [pid 5849] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5847] <... write resumed>) = 18 [pid 5846] <... memfd_create resumed>) = 3 [pid 5851] <... write resumed>) = 4 [pid 5847] memfd_create("syzkaller", 0 [pid 5846] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5851] close(3 [pid 5849] <... mmap resumed>) = 0x7f8ce9c00000 [pid 5851] <... close resumed>) = 0 [pid 5847] <... memfd_create resumed>) = 3 [pid 5851] symlink("/dev/binderfs", "./binderfs" [pid 5846] <... mmap resumed>) = 0x7f8ce9c00000 [pid 5851] <... symlink resumed>) = 0 [pid 5847] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5851] write(1, "executing program\n", 18executing program ) = 18 [pid 5847] <... mmap resumed>) = 0x7f8ce9c00000 [pid 5851] memfd_create("syzkaller", 0) = 3 [pid 5851] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8ce9c00000 [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 [pid 5846] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 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 [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 [pid 5847] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5848] <... write resumed>) = 16777216 [pid 5848] munmap(0x7f8ce9c00000, 138412032) = 0 [pid 5848] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5848] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5848] close(3) = 0 [pid 5848] close(4) = 0 [pid 5848] mkdir("./file0", 0777) = 0 [ 79.801816][ T5848] loop1: detected capacity change from 0 to 32768 [pid 5848] mount("/dev/loop1", "./file0", "jfs", MS_NODEV|MS_POSIXACL|MS_RELATIME, "noquota,errors=continue,nointegrity,uid=0x0000000000000000,quota,iocharset=iso8859-9,usrquota,uid=0x"...) = 0 [pid 5848] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5848] chdir("./file0") = 0 [pid 5848] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5848] exit_group(0) = ? [pid 5848] +++ exited with 0 +++ [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5848, si_uid=0, si_status=0, si_utime=13 /* 0.13 s */, si_stime=27 /* 0.27 s */} --- [pid 5842] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5842] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5842] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5842] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5842] getdents64(3, 0x5555707f66f0 /* 4 entries */, 32768) = 112 [pid 5842] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5842] newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5842] unlink("./0/binderfs") = 0 [pid 5842] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [pid 5842] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5842] newfstatat(AT_FDCWD, "./0/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5842] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5842] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5842] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5842] getdents64(4, 0x5555707fe730 /* 2 entries */, 32768) = 48 [pid 5842] getdents64(4, 0x5555707fe730 /* 0 entries */, 32768) = 0 [pid 5842] close(4) = 0 [pid 5842] rmdir("./0/file0") = 0 [pid 5842] getdents64(3, 0x5555707f66f0 /* 0 entries */, 32768) = 0 [pid 5842] close(3) = 0 [pid 5842] rmdir("./0") = 0 [pid 5842] mkdir("./1", 0777) = 0 [pid 5842] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5842] ioctl(3, LOOP_CLR_FD) = 0 [pid 5842] close(3 [pid 5846] <... write resumed>) = 16777216 [pid 5846] munmap(0x7f8ce9c00000, 138412032 [pid 5851] <... write resumed>) = 16777216 [pid 5846] <... munmap resumed>) = 0 [pid 5851] munmap(0x7f8ce9c00000, 138412032 [pid 5847] <... write resumed>) = 16777216 [pid 5846] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5846] ioctl(4, LOOP_SET_FD, 3 [pid 5847] munmap(0x7f8ce9c00000, 138412032 [pid 5846] <... ioctl resumed>) = 0 [pid 5846] close(3) = 0 [pid 5846] close(4) = 0 [pid 5851] <... munmap resumed>) = 0 [pid 5849] <... write resumed>) = 16777216 [pid 5846] mkdir("./file0", 0777 [pid 5851] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5847] <... munmap resumed>) = 0 [pid 5851] <... openat resumed>) = 4 [pid 5849] munmap(0x7f8ce9c00000, 138412032 [pid 5846] <... mkdir resumed>) = 0 [pid 5851] ioctl(4, LOOP_SET_FD, 3 [pid 5846] mount("/dev/loop0", "./file0", "jfs", MS_NODEV|MS_POSIXACL|MS_RELATIME, "noquota,errors=continue,nointegrity,uid=0x0000000000000000,quota,iocharset=iso8859-9,usrquota,uid=0x"... [pid 5847] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5846] <... mount resumed>) = 0 [pid 5847] <... openat resumed>) = 4 [pid 5846] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [ 80.078894][ T5846] loop0: detected capacity change from 0 to 32768 [ 80.114175][ T5851] loop4: detected capacity change from 0 to 32768 [pid 5847] ioctl(4, LOOP_SET_FD, 3 [pid 5846] <... openat resumed>) = 3 [pid 5846] chdir("./file0" [pid 5851] <... ioctl resumed>) = 0 [pid 5849] <... munmap resumed>) = 0 [pid 5847] <... ioctl resumed>) = 0 [pid 5846] <... chdir resumed>) = 0 [pid 5851] close(3 [pid 5849] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5846] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5851] <... close resumed>) = 0 [pid 5849] <... openat resumed>) = 4 [pid 5846] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5851] close(4) = 0 [pid 5849] ioctl(4, LOOP_SET_FD, 3 [pid 5846] exit_group(0 [pid 5851] mkdir("./file0", 0777 [pid 5846] <... exit_group resumed>) = ? [pid 5847] close(3) = 0 [pid 5847] close(4) = 0 [pid 5847] mkdir("./file0", 0777) = 0 [pid 5851] <... mkdir resumed>) = 0 [pid 5849] <... ioctl resumed>) = 0 [pid 5846] +++ exited with 0 +++ [pid 5851] mount("/dev/loop4", "./file0", "jfs", MS_NODEV|MS_POSIXACL|MS_RELATIME, "noquota,errors=continue,nointegrity,uid=0x0000000000000000,quota,iocharset=iso8859-9,usrquota,uid=0x"... [pid 5841] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5846, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=22 /* 0.22 s */} --- [pid 5841] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5847] mount("/dev/loop2", "./file0", "jfs", MS_NODEV|MS_POSIXACL|MS_RELATIME, "noquota,errors=continue,nointegrity,uid=0x0000000000000000,quota,iocharset=iso8859-9,usrquota,uid=0x"... [pid 5841] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5841] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5841] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5851] <... mount resumed>) = 0 [pid 5841] getdents64(3, [pid 5851] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5841] <... getdents64 resumed>0x5555707f66f0 /* 4 entries */, 32768) = 112 [pid 5851] <... openat resumed>) = 3 [pid 5841] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5851] chdir("./file0" [pid 5841] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5841] newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5841] unlink("./0/binderfs") = 0 [pid 5841] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5851] <... chdir resumed>) = 0 [pid 5849] close(3 [pid 5851] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5849] <... close resumed>) = 0 [pid 5851] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5849] close(4 [pid 5851] exit_group(0 [pid 5847] <... mount resumed>) = 0 [pid 5851] <... exit_group resumed>) = ? [pid 5849] <... close resumed>) = 0 [pid 5847] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5849] mkdir("./file0", 0777 [pid 5847] <... openat resumed>) = 3 [pid 5847] chdir("./file0") = 0 [pid 5847] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5851] +++ exited with 0 +++ [pid 5849] <... mkdir resumed>) = 0 [pid 5847] exit_group(0 [pid 5849] mount("/dev/loop3", "./file0", "jfs", MS_NODEV|MS_POSIXACL|MS_RELATIME, "noquota,errors=continue,nointegrity,uid=0x0000000000000000,quota,iocharset=iso8859-9,usrquota,uid=0x"... [pid 5847] <... exit_group resumed>) = ? [ 80.129114][ T5847] loop2: detected capacity change from 0 to 32768 [ 80.157861][ T5849] loop3: detected capacity change from 0 to 32768 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5851, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=20 /* 0.20 s */} --- [pid 5849] <... mount resumed>) = 0 [pid 5847] +++ exited with 0 +++ [pid 5849] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5843] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5847, si_uid=0, si_status=0, si_utime=10 /* 0.10 s */, si_stime=21 /* 0.21 s */} --- [pid 5849] <... openat resumed>) = 3 [pid 5849] chdir("./file0") = 0 [pid 5849] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5843] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5849] exit_group(0 [pid 5843] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5849] <... exit_group resumed>) = ? [pid 5843] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5843] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5843] getdents64(3, 0x5555707f66f0 /* 4 entries */, 32768) = 112 [pid 5843] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5845] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5849] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5849, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=33 /* 0.33 s */} --- [pid 5843] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 5843] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5843] unlink("./0/binderfs" [pid 5845] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5843] <... unlink resumed>) = 0 [pid 5841] <... umount2 resumed>) = 0 [pid 5845] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5843] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5845] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5845] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5845] getdents64(3, 0x5555707f66f0 /* 4 entries */, 32768) = 112 [pid 5845] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5845] newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5845] unlink("./0/binderfs") = 0 [pid 5844] <... restart_syscall resumed>) = 0 [pid 5844] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5845] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5844] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5844] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5844] getdents64(3, 0x5555707f66f0 /* 4 entries */, 32768) = 112 [pid 5844] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5844] newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5844] unlink("./0/binderfs") = 0 [pid 5841] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [ 80.230197][ T5844] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000006: 0000 [#1] PREEMPT SMP KASAN PTI [ 80.242839][ T5844] KASAN: null-ptr-deref in range [0x0000000000000030-0x0000000000000037] [ 80.251304][ T5844] CPU: 1 UID: 0 PID: 5844 Comm: syz-executor137 Not tainted 6.12.0-syzkaller-08446-g228a1157fb9f #0 [ 80.262195][ T5844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 80.272293][ T5844] RIP: 0010:lmLogSync+0x228/0xae0 [ 80.277437][ T5844] 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 36 46 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 19 46 db fe 48 8b 3b e8 c1 dd ab [ 80.297097][ T5844] RSP: 0018:ffffc90003dd7a40 EFLAGS: 00010206 [ 80.303178][ T5844] RAX: 0000000000000006 RBX: 0000000000000030 RCX: ffff88807cc3da00 [ 80.311152][ T5844] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 80.319124][ T5844] RBP: ffffc90003dd7b48 R08: ffffffff81cd7ade R09: 0000000000000000 [ 80.327099][ T5844] R10: ffffc90003dd7828 R11: fffff520007baf34 R12: ffff8880286bb800 [ 80.335088][ T5844] R13: dffffc0000000000 R14: 0000000000000000 R15: ffff8880259cc238 [ 80.343078][ T5844] FS: 00005555707f5380(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 [ 80.352026][ T5844] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 80.358635][ T5844] CR2: 00005555707fe6f8 CR3: 0000000034964000 CR4: 00000000003526f0 [ 80.366623][ T5844] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 80.374611][ T5844] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 80.382592][ T5844] Call Trace: [ 80.385873][ T5844] [ 80.388825][ T5844] ? __die_body+0x5f/0xb0 [ 80.393167][ T5844] ? die_addr+0xb0/0xe0 [ 80.397334][ T5844] ? exc_general_protection+0x3dd/0x5d0 [ 80.402922][ T5844] ? asm_exc_general_protection+0x26/0x30 [ 80.408759][ T5844] ? filemap_flush+0x17e/0x260 [ 80.413544][ T5844] ? lmLogSync+0x228/0xae0 [ 80.417977][ T5844] ? __pfx_lmLogSync+0x10/0x10 [ 80.422759][ T5844] ? __pfx_dquot_writeback_dquots+0x10/0x10 [ 80.428687][ T5844] jfs_syncpt+0x7d/0xa0 [ 80.432868][ T5844] jfs_sync_fs+0x8a/0xa0 [ 80.437123][ T5844] sync_filesystem+0xed/0x230 [ 80.441824][ T5844] generic_shutdown_super+0x72/0x2d0 [ 80.447139][ T5844] kill_block_super+0x44/0x90 [ 80.451828][ T5844] deactivate_locked_super+0xc4/0x130 [ 80.457209][ T5844] cleanup_mnt+0x41f/0x4b0 [ 80.461679][ T5844] ? lockdep_hardirqs_on+0x99/0x150 [ 80.466912][ T5844] task_work_run+0x24f/0x310 [ 80.471528][ T5844] ? __pfx_task_work_run+0x10/0x10 [ 80.476658][ T5844] ? path_umount+0x284/0xf70 [ 80.481290][ T5844] ptrace_notify+0x2d2/0x380 [ 80.485892][ T5844] ? __pfx_ptrace_notify+0x10/0x10 [ 80.491017][ T5844] ? __x64_sys_umount+0x123/0x170 [ 80.496052][ T5844] syscall_exit_work+0xe3/0x220 [ 80.500913][ T5844] syscall_exit_to_user_mode+0x24a/0x340 [ 80.506584][ T5844] do_syscall_64+0x100/0x230 [ 80.511190][ T5844] ? clear_bhb_loop+0x35/0x90 [ 80.515881][ T5844] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 80.521785][ T5844] RIP: 0033:0x7f8cf20865b7 [ 80.526215][ T5844] 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 [ 80.546059][ T5844] RSP: 002b:00007fff1f2edfa8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 80.554569][ T5844] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f8cf20865b7 [ 80.562557][ T5844] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff1f2ee060 [ 80.570550][ T5844] RBP: 00007fff1f2ee060 R08: 0000000000000000 R09: 0000000000000000 [pid 5844] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5841] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5842] <... close resumed>) = 0 [ 80.578522][ T5844] R10: 00000000ffffffff R11: 0000000000000202 R12: 00007fff1f2ef0d0 [ 80.586583][ T5844] R13: 00005555707f66c0 R14: 431bde82d7b634db R15: 00007fff1f2ef0f0 [ 80.594566][ T5844] [ 80.597584][ T5844] Modules linked in: [ 80.601692][ T5844] ---[ end trace 0000000000000000 ]--- [ 80.608070][ T5844] RIP: 0010:lmLogSync+0x228/0xae0 [pid 5841] newfstatat(AT_FDCWD, "./0/file0", [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5841] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 5854 attached [pid 5854] set_robust_list(0x5555707f5660, 24) = 0 [pid 5854] chdir("./1" [pid 5842] <... clone resumed>, child_tidptr=0x5555707f5650) = 5854 [pid 5854] <... chdir resumed>) = 0 [pid 5854] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5841] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5854] <... prctl resumed>) = 0 [pid 5854] setpgid(0, 0) = 0 [pid 5854] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5841] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5854] write(3, "1000", 4) = 4 [pid 5841] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5854] close(3) = 0 [pid 5841] <... openat resumed>) = 4 [pid 5854] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5854] write(1, "executing program\n", 18 [pid 5841] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5854] <... write resumed>) = 18 [pid 5841] getdents64(4, [pid 5854] memfd_create("syzkaller", 0 [pid 5841] <... getdents64 resumed>0x5555707fe730 /* 2 entries */, 32768) = 48 [pid 5841] getdents64(4, 0x5555707fe730 /* 0 entries */, 32768) = 0 [pid 5841] close(4 [pid 5854] <... memfd_create resumed>) = 3 [pid 5841] <... close resumed>) = 0 [pid 5854] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [ 80.613148][ T5844] 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 36 46 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 19 46 db fe 48 8b 3b e8 c1 dd ab [ 80.633069][ T5844] RSP: 0018:ffffc90003dd7a40 EFLAGS: 00010206 [ 80.639481][ T5844] RAX: 0000000000000006 RBX: 0000000000000030 RCX: ffff88807cc3da00 [ 80.647780][ T5844] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 80.656078][ T5844] RBP: ffffc90003dd7b48 R08: ffffffff81cd7ade R09: 0000000000000000 [ 80.664507][ T5844] R10: ffffc90003dd7828 R11: fffff520007baf34 R12: ffff8880286bb800 [ 80.672807][ T5844] R13: dffffc0000000000 R14: 0000000000000000 R15: ffff8880259cc238 [pid 5841] rmdir("./0/file0") = 0 [pid 5854] <... mmap resumed>) = 0x7f8ce9c00000 [pid 5841] getdents64(3, 0x5555707f66f0 /* 0 entries */, 32768) = 0 [pid 5841] close(3) = 0 [pid 5841] rmdir("./0") = 0 [pid 5841] mkdir("./1", 0777) = 0 [ 80.681584][ T5844] FS: 00005555707f5380(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 [ 80.690619][ T5844] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 80.697827][ T5844] CR2: 00007fff1f2ececc CR3: 0000000034964000 CR4: 00000000003526f0 [ 80.706009][ T5844] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 80.714418][ T5844] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 80.722520][ T5844] Kernel panic - not syncing: Fatal exception [ 80.728874][ T5844] Kernel Offset: disabled [ 80.733201][ T5844] Rebooting in 86400 seconds..