./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1168759668 <...> Warning: Permanently added '10.128.1.183' (ED25519) to the list of known hosts. execve("./syz-executor1168759668", ["./syz-executor1168759668"], 0x7ffd83726730 /* 10 vars */) = 0 brk(NULL) = 0x555558838000 brk(0x555558838d00) = 0x555558838d00 arch_prctl(ARCH_SET_FS, 0x555558838380) = 0 set_tid_address(0x555558838650) = 5217 set_robust_list(0x555558838660, 24) = 0 rseq(0x555558838ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1168759668", 4096) = 28 getrandom("\x16\x1e\x5b\xe4\xee\xe0\x21\xce", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555558838d00 brk(0x555558859d00) = 0x555558859d00 brk(0x55555885a000) = 0x55555885a000 mprotect(0x7f594b0bd000, 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.AbSvOs", 0700) = 0 chmod("./syzkaller.AbSvOs", 0777) = 0 chdir("./syzkaller.AbSvOs") = 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 5218 attached , child_tidptr=0x555558838650) = 5218 [pid 5218] set_robust_list(0x555558838660, 24) = 0 [pid 5218] chdir("./0") = 0 [pid 5218] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5218] setpgid(0, 0) = 0 [pid 5218] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5218] write(3, "1000", 4) = 4 [pid 5218] close(3) = 0 [pid 5218] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5218] write(1, "executing program\n", 18executing program ) = 18 [pid 5218] memfd_create("syzkaller", 0) = 3 [pid 5218] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5942a00000 [pid 5218] 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 5218] munmap(0x7f5942a00000, 138412032) = 0 [pid 5218] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5218] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5218] close(3) = 0 [pid 5218] close(4) = 0 [pid 5218] mkdir("./file0", 0777) = 0 [ 56.831087][ T5218] loop0: detected capacity change from 0 to 4096 [pid 5218] mount("/dev/loop0", "./file0", "ntfs3", MS_NOEXEC|MS_REC, "") = 0 [pid 5218] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5218] chdir("./file0") = 0 [pid 5218] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5218] open(".", O_RDONLY) = 4 [pid 5218] fcntl(4, F_NOTIFY, DN_ACCESS|DN_CREATE|DN_DELETE|DN_RENAME|DN_ATTRIB|DN_MULTISHOT) = 0 [pid 5218] fchmodat(AT_FDCWD, ".", 000) = 0 [pid 5218] exit_group(0) = ? [pid 5218] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5218, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=7 /* 0.07 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, 0x5555588396f0 /* 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 [ 56.873681][ T5218] ntfs3: loop0: Different NTFS sector size (4096) and media sector size (512). [ 56.907688][ T5218] ntfs3: loop0: ino=5, "/" attr_set_size [ 56.913836][ T5218] ntfs3: loop0: Mark volume as dirty due to NTFS errors newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(4, 0x555558841730 /* 2 entries */, 32768) = 48 getdents64(4, 0x555558841730 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./0/file0") = 0 [ 56.964063][ T3044] ------------[ cut here ]------------ [ 56.969678][ T3044] kernel BUG at fs/notify/dnotify/dnotify.c:135! [ 56.976333][ T3044] Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI [ 56.983285][ T3044] CPU: 1 UID: 0 PID: 3044 Comm: kworker/u8:13 Not tainted 6.11.0-rc5-syzkaller-00050-g3ec3f5fc4a91 #0 [ 56.994207][ T3044] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 [ 57.004425][ T3044] Workqueue: events_unbound fsnotify_mark_destroy_workfn getdents64(3, 0x5555588396f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./0") = 0 mkdir("./1", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [ 57.011452][ T3044] RIP: 0010:dnotify_free_mark+0x58/0x60 [ 57.017007][ T3044] 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 [ 57.036604][ T3044] RSP: 0018:ffffc9000a21fae8 EFLAGS: 00010293 [ 57.042648][ T3044] RAX: ffffffff821cf0b7 RBX: ffff88807c56c080 RCX: ffff88802bd58000 [ 57.050606][ T3044] RDX: 0000000000000000 RSI: ffffffff8bead560 RDI: ffff88807c56c000 ioctl(3, LOOP_CLR_FD) = 0 [ 57.058576][ T3044] RBP: ffffc9000a21fbb0 R08: ffffffff934f58ff R09: 1ffffffff269eb1f [ 57.066546][ T3044] R10: dffffc0000000000 R11: ffffffff821cf060 R12: ffff88801bea2000 [ 57.074503][ T3044] R13: ffffc9000a21fb40 R14: ffff88807c56c000 R15: ffff88807c56c000 [ 57.082459][ T3044] FS: 0000000000000000(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000 [ 57.091377][ T3044] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 57.097966][ T3044] CR2: 00007fff4bf44d1c CR3: 000000002526a000 CR4: 00000000003506f0 [ 57.105950][ T3044] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 close(3) = 0 [ 57.113926][ T3044] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 57.121902][ T3044] Call Trace: [ 57.125187][ T3044] [ 57.128109][ T3044] ? __die_body+0x88/0xe0 [ 57.132434][ T3044] ? die+0xcf/0x110 [ 57.136234][ T3044] ? do_trap+0x15a/0x3a0 [ 57.140467][ T3044] ? dnotify_free_mark+0x58/0x60 [ 57.145393][ T3044] ? do_error_trap+0x1dc/0x2c0 [ 57.150144][ T3044] ? dnotify_free_mark+0x58/0x60 [ 57.155069][ T3044] ? __pfx_do_error_trap+0x10/0x10 [ 57.160169][ T3044] ? report_bug+0x3e8/0x500 [ 57.164677][ T3044] ? handle_invalid_op+0x34/0x40 [ 57.169602][ T3044] ? dnotify_free_mark+0x58/0x60 [ 57.174523][ T3044] ? exc_invalid_op+0x38/0x50 [ 57.179203][ T3044] ? asm_exc_invalid_op+0x1a/0x20 [ 57.184215][ T3044] ? __pfx_dnotify_free_mark+0x10/0x10 [ 57.189656][ T3044] ? dnotify_free_mark+0x57/0x60 [ 57.194581][ T3044] ? dnotify_free_mark+0x58/0x60 [ 57.199504][ T3044] ? dnotify_free_mark+0x57/0x60 [ 57.204424][ T3044] fsnotify_mark_destroy_workfn+0x2cf/0x350 [ 57.210305][ T3044] ? __pfx_fsnotify_mark_destroy_workfn+0x10/0x10 [ 57.216797][ T3044] ? process_scheduled_works+0x945/0x1830 [ 57.222518][ T3044] process_scheduled_works+0xa2c/0x1830 [ 57.228072][ T3044] ? __pfx_process_scheduled_works+0x10/0x10 [ 57.234045][ T3044] ? assign_work+0x364/0x3d0 [ 57.238635][ T3044] worker_thread+0x86d/0xd10 [ 57.243232][ T3044] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 57.249127][ T3044] ? __kthread_parkme+0x169/0x1d0 [ 57.254165][ T3044] ? __pfx_worker_thread+0x10/0x10 [ 57.259271][ T3044] kthread+0x2f0/0x390 [ 57.263332][ T3044] ? __pfx_worker_thread+0x10/0x10 [ 57.268434][ T3044] ? __pfx_kthread+0x10/0x10 [ 57.273019][ T3044] ret_from_fork+0x4b/0x80 [ 57.277426][ T3044] ? __pfx_kthread+0x10/0x10 [ 57.282017][ T3044] ret_from_fork_asm+0x1a/0x30 [ 57.286778][ T3044] [ 57.289868][ T3044] Modules linked in: [ 57.294186][ T3044] ---[ end trace 0000000000000000 ]--- [ 57.299855][ T3044] RIP: 0010:dnotify_free_mark+0x58/0x60 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5220 attached , child_tidptr=0x555558838650) = 5220 [pid 5220] set_robust_list(0x555558838660, 24) = 0 [pid 5220] chdir("./1") = 0 [pid 5220] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [ 57.305922][ T3044] 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 [ 57.325723][ T3044] RSP: 0018:ffffc9000a21fae8 EFLAGS: 00010293 [ 57.331999][ T3044] RAX: ffffffff821cf0b7 RBX: ffff88807c56c080 RCX: ffff88802bd58000 [ 57.341217][ T3044] RDX: 0000000000000000 RSI: ffffffff8bead560 RDI: ffff88807c56c000 [ 57.349412][ T3044] RBP: ffffc9000a21fbb0 R08: ffffffff934f58ff R09: 1ffffffff269eb1f [ 57.357438][ T3044] R10: dffffc0000000000 R11: ffffffff821cf060 R12: ffff88801bea2000 [pid 5220] setpgid(0, 0) = 0 [pid 5220] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5220] write(3, "1000", 4) = 4 [pid 5220] close(3) = 0 [pid 5220] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5220] write(1, "executing program\n", 18executing program ) = 18 [pid 5220] memfd_create("syzkaller", 0) = 3 [pid 5220] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5942a00000 [ 57.365631][ T3044] R13: ffffc9000a21fb40 R14: ffff88807c56c000 R15: ffff88807c56c000 [ 57.373892][ T3044] FS: 0000000000000000(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000 [ 57.382997][ T3044] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 57.389615][ T3044] CR2: 000055d161dd6198 CR3: 0000000025268000 CR4: 00000000003506f0 [ 57.397834][ T3044] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 57.406302][ T3044] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 57.414821][ T3044] Kernel panic - not syncing: Fatal exception [ 57.421192][ T3044] Kernel Offset: disabled [ 57.425503][ T3044] Rebooting in 86400 seconds..