./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor642173702 <...> Warning: Permanently added '10.128.0.212' (ED25519) to the list of known hosts. execve("./syz-executor642173702", ["./syz-executor642173702"], 0x7fff81288890 /* 10 vars */) = 0 brk(NULL) = 0x555591421000 brk(0x555591421d00) = 0x555591421d00 arch_prctl(ARCH_SET_FS, 0x555591421380) = 0 set_tid_address(0x555591421650) = 5843 set_robust_list(0x555591421660, 24) = 0 rseq(0x555591421ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor642173702", 4096) = 27 getrandom("\x1e\x71\x75\xd4\x18\x65\xf9\xa3", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555591421d00 brk(0x555591442d00) = 0x555591442d00 brk(0x555591443000) = 0x555591443000 mprotect(0x7fb04827b000, 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 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 5844 attached [pid 5844] set_robust_list(0x555591421660, 24) = 0 [pid 5844] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5843] <... clone resumed>, child_tidptr=0x555591421650) = 5844 [pid 5844] <... prctl resumed>) = 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 5844] write(1, "executing program\n", 18executing program ) = 18 [pid 5844] memfd_create("syzkaller", 0) = 3 [pid 5844] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb03fc00000 [pid 5844] 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 5844] munmap(0x7fb03fc00000, 138412032) = 0 [pid 5844] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5844] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5844] close(3) = 0 [pid 5844] close(4) = 0 [pid 5844] mkdir("./file0", 0777) = 0 [ 88.621676][ T5844] loop0: detected capacity change from 0 to 4096 [pid 5844] mount("/dev/loop0", "./file0", "ntfs3", 0, "showmeta,umask=00000000000000000000001,force,uid=0x0000000000000000,discard,dmask=000000000000000000"...) = 0 [pid 5844] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5844] chdir("./file0") = 0 [pid 5844] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [ 88.661875][ T5844] ntfs3(loop0): Different NTFS sector size (4096) and media sector size (512). [ 88.708122][ T5844] VFS_BUG_ON_INODE(!IS_ANON_FILE(inode)) encountered for inode ffff88807619d318 [ 88.708340][ T5844] ------------[ cut here ]------------ [ 88.723416][ T5844] kernel BUG at fs/namei.c:3483! [ 88.728550][ T5844] Oops: invalid opcode: 0000 [#1] SMP KASAN PTI [ 88.734814][ T5844] CPU: 1 UID: 0 PID: 5844 Comm: syz-executor642 Not tainted 6.16.0-rc5-syzkaller #0 PREEMPT(full) [ 88.745513][ T5844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 88.755577][ T5844] RIP: 0010:may_open+0x4b1/0x4c0 [ 88.760542][ T5844] Code: 38 c1 0f 8c 1e fd ff ff 4c 89 e7 e8 69 25 ec ff e9 11 fd ff ff e8 9f cd 8a ff 4c 89 f7 48 c7 c6 40 40 99 8b e8 70 cb f2 fe 90 <0f> 0b 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 [ 88.780160][ T5844] RSP: 0018:ffffc90003c27940 EFLAGS: 00010246 [ 88.786230][ T5844] RAX: 000000000000004d RBX: dffffc0000000000 RCX: 9ade277ea4189b00 [ 88.794200][ T5844] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 88.802170][ T5844] RBP: 0000000000008042 R08: ffffc90003c27667 R09: 1ffff92000784ecc [ 88.810141][ T5844] R10: dffffc0000000000 R11: fffff52000784ecd R12: 0000000000000000 [ 88.818125][ T5844] R13: ffffffff8e29ca80 R14: ffff88807619d318 R15: 0000000000000006 [ 88.826104][ T5844] FS: 0000555591421380(0000) GS:ffff888125d51000(0000) knlGS:0000000000000000 [ 88.835032][ T5844] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 88.841615][ T5844] CR2: 00007ff533b9b000 CR3: 0000000076bc6000 CR4: 00000000003526f0 [ 88.849594][ T5844] Call Trace: [ 88.852880][ T5844] [ 88.855814][ T5844] path_openat+0x2d91/0x3830 [ 88.860415][ T5844] ? arch_stack_walk+0xfc/0x150 [ 88.865279][ T5844] ? __pfx_path_openat+0x10/0x10 [ 88.870222][ T5844] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 88.876300][ T5844] do_filp_open+0x1fa/0x410 [ 88.880808][ T5844] ? __lock_acquire+0xab9/0xd20 [ 88.885660][ T5844] ? __pfx_do_filp_open+0x10/0x10 [ 88.890692][ T5844] ? _raw_spin_unlock+0x28/0x50 [ 88.895557][ T5844] ? alloc_fd+0x64c/0x6c0 [ 88.899900][ T5844] do_sys_openat2+0x121/0x1c0 [ 88.904578][ T5844] ? __pfx_do_sys_openat2+0x10/0x10 [ 88.909788][ T5844] ? rcu_is_watching+0x15/0xb0 [ 88.914558][ T5844] __x64_sys_openat+0x138/0x170 [ 88.919411][ T5844] do_syscall_64+0xfa/0x3b0 [ 88.923917][ T5844] ? lockdep_hardirqs_on+0x9c/0x150 [ 88.929119][ T5844] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 88.935189][ T5844] ? clear_bhb_loop+0x60/0xb0 [ 88.939870][ T5844] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 88.945765][ T5844] RIP: 0033:0x7fb0481e7d99 [ 88.950186][ T5844] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 88.969799][ T5844] RSP: 002b:00007ffc4711a718 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 88.978216][ T5844] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb0481e7d99 [ 88.986191][ T5844] RDX: 0000000000000042 RSI: 0000200000000100 RDI: 00000000ffffff9c [ 88.994164][ T5844] RBP: 00007fb04827b5f0 R08: 000000000001f1b6 R09: 00005555914224c0 [ 89.002156][ T5844] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc4711a740 [ 89.010155][ T5844] R13: 00007ffc4711a968 R14: 431bde82d7b634db R15: 00007fb04823103b [ 89.018151][ T5844] [ 89.021172][ T5844] Modules linked in: [ 89.025334][ T5844] ---[ end trace 0000000000000000 ]--- [ 89.031029][ T5844] RIP: 0010:may_open+0x4b1/0x4c0 [ 89.037489][ T5844] Code: 38 c1 0f 8c 1e fd ff ff 4c 89 e7 e8 69 25 ec ff e9 11 fd ff ff e8 9f cd 8a ff 4c 89 f7 48 c7 c6 40 40 99 8b e8 70 cb f2 fe 90 <0f> 0b 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 [ 89.057268][ T5844] RSP: 0018:ffffc90003c27940 EFLAGS: 00010246 [ 89.063384][ T5844] RAX: 000000000000004d RBX: dffffc0000000000 RCX: 9ade277ea4189b00 [ 89.071506][ T5844] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 89.079535][ T5844] RBP: 0000000000008042 R08: ffffc90003c27667 R09: 1ffff92000784ecc [ 89.087537][ T5844] R10: dffffc0000000000 R11: fffff52000784ecd R12: 0000000000000000 [ 89.095552][ T5844] R13: ffffffff8e29ca80 R14: ffff88807619d318 R15: 0000000000000006 [ 89.103524][ T5844] FS: 0000555591421380(0000) GS:ffff888125c51000(0000) knlGS:0000000000000000 [ 89.112493][ T5844] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 89.119120][ T5844] CR2: 00007ff5342b69c0 CR3: 0000000076bc6000 CR4: 00000000003526f0 [ 89.127133][ T5844] Kernel panic - not syncing: Fatal exception [ 89.133548][ T5844] Kernel Offset: disabled [ 89.137869][ T5844] Rebooting in 86400 seconds..