./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3617496877 <...> Warning: Permanently added '10.128.1.165' (ED25519) to the list of known hosts. execve("./syz-executor3617496877", ["./syz-executor3617496877"], 0x7fff2a49f1e0 /* 10 vars */) = 0 brk(NULL) = 0x5555757d2000 brk(0x5555757d2d00) = 0x5555757d2d00 arch_prctl(ARCH_SET_FS, 0x5555757d2380) = 0 set_tid_address(0x5555757d2650) = 5213 set_robust_list(0x5555757d2660, 24) = 0 rseq(0x5555757d2ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3617496877", 4096) = 28 getrandom("\xc2\x8d\x79\xe0\x83\x27\xac\x6e", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555757d2d00 brk(0x5555757f3d00) = 0x5555757f3d00 brk(0x5555757f4000) = 0x5555757f4000 mprotect(0x7f59ee14e000, 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 mkdir("./syzkaller.1m9619", 0700) = 0 chmod("./syzkaller.1m9619", 0777) = 0 chdir("./syzkaller.1m9619") = 0 mkdir("./0", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5214 attached , child_tidptr=0x5555757d2650) = 5214 [pid 5214] set_robust_list(0x5555757d2660, 24) = 0 [pid 5214] chdir("./0") = 0 [pid 5214] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5214] setpgid(0, 0) = 0 [pid 5214] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5214] write(3, "1000", 4) = 4 [pid 5214] close(3) = 0 [pid 5214] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5214] write(1, "executing program\n", 18executing program ) = 18 [pid 5214] memfd_create("syzkaller", 0) = 3 [pid 5214] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f59e5c00000 [pid 5214] write(3, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x10\x01\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x01\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x01\x00\x00\x00\x78\x5f\xaa\x3b\xd7\x0e\xce\x68\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152) = 2097152 [pid 5214] munmap(0x7f59e5c00000, 138412032) = 0 [pid 5214] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5214] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5214] close(3) = 0 [pid 5214] close(4) = 0 [pid 5214] mkdir("./file0", 0777) = 0 [pid 5214] mount("/dev/loop0", "./file0", "ntfs3", MS_NOEXEC|MS_REC, "") = 0 [pid 5214] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5214] chdir("./file0") = 0 [pid 5214] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5214] open(".", O_RDONLY) = 4 [pid 5214] fcntl(4, F_NOTIFY, DN_ACCESS|DN_CREATE|DN_DELETE|DN_RENAME|DN_ATTRIB|DN_MULTISHOT) = 0 [ 57.536442][ T5214] loop0: detected capacity change from 0 to 4096 [ 57.575429][ T5214] ntfs3: loop0: Different NTFS sector size (4096) and media sector size (512). [pid 5214] fchmodat(AT_FDCWD, ".", 000) = 0 [pid 5214] exit_group(0) = ? [pid 5214] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5214, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x5555757d36f0 /* 4 entries */, 32768) = 112 umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./0/binderfs") = 0 umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./0/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(4, 0x5555757db730 /* 2 entries */, 32768) = 48 getdents64(4, 0x5555757db730 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./0/file0") = 0 getdents64(3, 0x5555757d36f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./0") = 0 [ 57.615601][ T5214] ntfs3: loop0: ino=5, "/" attr_set_size [ 57.621440][ T5214] ntfs3: loop0: Mark volume as dirty due to NTFS errors mkdir("./1", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 [ 57.674169][ T65] ------------[ cut here ]------------ [ 57.679774][ T65] kernel BUG at fs/notify/dnotify/dnotify.c:135! [ 57.686172][ T65] Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI [ 57.693113][ T65] CPU: 1 UID: 0 PID: 65 Comm: kworker/u8:4 Not tainted 6.11.0-rc5-syzkaller-00050-g3ec3f5fc4a91 #0 [ 57.703766][ T65] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 [ 57.713833][ T65] Workqueue: events_unbound fsnotify_mark_destroy_workfn close(3) = 0 [ 57.720865][ T65] RIP: 0010:dnotify_free_mark+0x58/0x60 [ 57.726405][ T65] Code: 89 df e8 eb b7 da ff 48 83 3b 00 75 17 e8 00 9b 76 ff 48 8b 3d 91 47 eb 0b 4c 89 f6 5b 41 5e e9 5e 0a cf ff e8 e9 9a 76 ff 90 <0f> 0b 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 [ 57.746014][ T65] RSP: 0018:ffffc900020afae8 EFLAGS: 00010293 [ 57.752099][ T65] RAX: ffffffff821cf0b7 RBX: ffff888075725080 RCX: ffff888018399e00 [ 57.760078][ T65] RDX: 0000000000000000 RSI: ffffffff8bead560 RDI: ffff888075725000 [ 57.768043][ T65] RBP: ffffc900020afbb0 R08: ffffffff934f58ff R09: 1ffffffff269eb1f [ 57.776005][ T65] R10: dffffc0000000000 R11: ffffffff821cf060 R12: ffff8880177fa000 [ 57.783972][ T65] R13: ffffc900020afb40 R14: ffff888075725000 R15: ffff888075725000 [ 57.791938][ T65] FS: 0000000000000000(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000 [ 57.800854][ T65] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 57.807423][ T65] CR2: 000000000045bdd0 CR3: 000000007cfce000 CR4: 00000000003506f0 [ 57.815383][ T65] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 57.823338][ T65] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 57.831298][ T65] Call Trace: [ 57.834567][ T65] [ 57.837486][ T65] ? __die_body+0x88/0xe0 [ 57.841811][ T65] ? die+0xcf/0x110 [ 57.845610][ T65] ? do_trap+0x15a/0x3a0 [ 57.849841][ T65] ? dnotify_free_mark+0x58/0x60 [ 57.854776][ T65] ? do_error_trap+0x1dc/0x2c0 [ 57.859530][ T65] ? dnotify_free_mark+0x58/0x60 [ 57.864454][ T65] ? __pfx_do_error_trap+0x10/0x10 [ 57.869551][ T65] ? report_bug+0x3e8/0x500 [ 57.874058][ T65] ? handle_invalid_op+0x34/0x40 [ 57.878984][ T65] ? dnotify_free_mark+0x58/0x60 [ 57.883909][ T65] ? exc_invalid_op+0x38/0x50 [ 57.888572][ T65] ? asm_exc_invalid_op+0x1a/0x20 [ 57.893582][ T65] ? __pfx_dnotify_free_mark+0x10/0x10 [ 57.899022][ T65] ? dnotify_free_mark+0x57/0x60 [ 57.903947][ T65] ? dnotify_free_mark+0x58/0x60 [ 57.908870][ T65] ? dnotify_free_mark+0x57/0x60 [ 57.913791][ T65] fsnotify_mark_destroy_workfn+0x2cf/0x350 [ 57.919671][ T65] ? __pfx_fsnotify_mark_destroy_workfn+0x10/0x10 [ 57.926085][ T65] ? process_scheduled_works+0x945/0x1830 [ 57.931791][ T65] process_scheduled_works+0xa2c/0x1830 [ 57.937332][ T65] ? __pfx_process_scheduled_works+0x10/0x10 [ 57.943312][ T65] ? assign_work+0x364/0x3d0 [ 57.947899][ T65] worker_thread+0x86d/0xd10 [ 57.952483][ T65] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 57.958370][ T65] ? __kthread_parkme+0x169/0x1d0 [ 57.963386][ T65] ? __pfx_worker_thread+0x10/0x10 [ 57.968487][ T65] kthread+0x2f0/0x390 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5216 attached , child_tidptr=0x5555757d2650) = 5216 [pid 5216] set_robust_list(0x5555757d2660, 24) = 0 [pid 5216] chdir("./1") = 0 [pid 5216] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5216] setpgid(0, 0) = 0 [pid 5216] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5216] write(3, "1000", 4) = 4 [pid 5216] close(3) = 0 [ 57.972550][ T65] ? __pfx_worker_thread+0x10/0x10 [ 57.977666][ T65] ? __pfx_kthread+0x10/0x10 [ 57.982257][ T65] ret_from_fork+0x4b/0x80 [ 57.986668][ T65] ? __pfx_kthread+0x10/0x10 [ 57.991250][ T65] ret_from_fork_asm+0x1a/0x30 [ 57.996013][ T65] [ 57.999017][ T65] Modules linked in: [ 58.003458][ T65] ---[ end trace 0000000000000000 ]--- [ 58.009178][ T65] RIP: 0010:dnotify_free_mark+0x58/0x60 [pid 5216] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 5216] write(1, "executing program\n", 18) = 18 [pid 5216] memfd_create("syzkaller", 0) = 3 [pid 5216] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f59e5c00000 [ 58.022279][ T65] Code: 89 df e8 eb b7 da ff 48 83 3b 00 75 17 e8 00 9b 76 ff 48 8b 3d 91 47 eb 0b 4c 89 f6 5b 41 5e e9 5e 0a cf ff e8 e9 9a 76 ff 90 <0f> 0b 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 [ 58.042077][ T65] RSP: 0018:ffffc900020afae8 EFLAGS: 00010293 [ 58.048357][ T65] RAX: ffffffff821cf0b7 RBX: ffff888075725080 RCX: ffff888018399e00 [ 58.056578][ T65] RDX: 0000000000000000 RSI: ffffffff8bead560 RDI: ffff888075725000 [ 58.064916][ T65] RBP: ffffc900020afbb0 R08: ffffffff934f58ff R09: 1ffffffff269eb1f [pid 5216] write(3, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x10\x01\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x01\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x01\x00\x00\x00\x78\x5f\xaa\x3b\xd7\x0e\xce\x68\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152) = 2097152 [pid 5216] munmap(0x7f59e5c00000, 138412032) = 0 [pid 5216] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 58.073179][ T65] R10: dffffc0000000000 R11: ffffffff821cf060 R12: ffff8880177fa000 [ 58.081156][ T65] R13: ffffc900020afb40 R14: ffff888075725000 R15: ffff888075725000 [ 58.089219][ T65] FS: 0000000000000000(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000 [ 58.098385][ T65] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 58.105001][ T65] CR2: 00007f59ee0b9003 CR3: 000000007b474000 CR4: 00000000003506f0 [ 58.113349][ T65] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 58.121321][ T65] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 58.129661][ T65] Kernel panic - not syncing: Fatal exception [ 58.135929][ T65] Kernel Offset: disabled [ 58.140247][ T65] Rebooting in 86400 seconds..