./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2179568394 <...> Warning: Permanently added '10.128.0.153' (ED25519) to the list of known hosts. execve("./syz-executor2179568394", ["./syz-executor2179568394"], 0x7ffcaff0cc60 /* 10 vars */) = 0 brk(NULL) = 0x55555bd73000 brk(0x55555bd73d00) = 0x55555bd73d00 arch_prctl(ARCH_SET_FS, 0x55555bd73380) = 0 set_tid_address(0x55555bd73650) = 5820 set_robust_list(0x55555bd73660, 24) = 0 rseq(0x55555bd73ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2179568394", 4096) = 28 getrandom("\x35\xd5\x3d\x10\xf8\xd1\x7c\xc5", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55555bd73d00 brk(0x55555bd94d00) = 0x55555bd94d00 brk(0x55555bd95000) = 0x55555bd95000 mprotect(0x7f0f18f4d000, 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 5821 attached [pid 5821] set_robust_list(0x55555bd73660, 24) = 0 [pid 5821] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5820] <... clone resumed>, child_tidptr=0x55555bd73650) = 5821 [pid 5821] <... prctl resumed>) = 0 [pid 5821] setpgid(0, 0) = 0 [pid 5821] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5821] write(3, "1000", 4) = 4 executing program [pid 5821] close(3) = 0 [pid 5821] write(1, "executing program\n", 18) = 18 [pid 5821] memfd_create("syzkaller", 0) = 3 [pid 5821] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0f10a00000 [pid 5821] 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 5821] munmap(0x7f0f10a00000, 138412032) = 0 [pid 5821] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5821] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5821] close(3) = 0 [pid 5821] close(4) = 0 [pid 5821] mkdir("./file0", 0777) = 0 [ 83.001150][ T5821] loop0: detected capacity change from 0 to 4096 [pid 5821] mount("/dev/loop0", "./file0", "ntfs3", MS_NODEV|MS_NOATIME|MS_POSIXACL|MS_STRICTATIME|MS_LAZYTIME, "showmeta,umask=00000000000000000000001,force,uid=0x0000000000000000,discard,dmask=000000000000000000"...) = 0 [pid 5821] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 83.045815][ T5821] ntfs3(loop0): Different NTFS sector size (4096) and media sector size (512). [pid 5821] chdir("./file0") = 0 [pid 5821] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [ 83.120772][ T5821] VFS_BUG_ON_INODE(1) encountered for inode ffff888075225318 [ 83.120964][ T5821] ------------[ cut here ]------------ [ 83.133981][ T5821] kernel BUG at fs/namei.c:3467! [ 83.138952][ T5821] Oops: invalid opcode: 0000 [#1] SMP KASAN PTI [ 83.145192][ T5821] CPU: 1 UID: 0 PID: 5821 Comm: syz-executor217 Not tainted 6.15.0-rc6-syzkaller-00025-g627277ba7c23 #0 PREEMPT(full) [ 83.157600][ T5821] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 83.167650][ T5821] RIP: 0010:may_open+0x462/0x470 [ 83.172648][ T5821] Code: 38 c1 0f 8c 9b fe ff ff 4c 89 ff e8 b8 6e ec ff e9 8e fe ff ff e8 ce 9f 8c ff 4c 89 f7 48 c7 c6 00 0a 79 8b e8 df c4 f4 fe 90 <0f> 0b 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 [ 83.192251][ T5821] RSP: 0018:ffffc9000430f940 EFLAGS: 00010246 [ 83.198312][ T5821] RAX: 000000000000003a RBX: dffffc0000000000 RCX: bf56c11bc0cc4e00 [ 83.206318][ T5821] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 83.214283][ T5821] RBP: ffffffff8e099de0 R08: ffffc9000430f627 R09: 1ffff92000861ec4 [ 83.222249][ T5821] R10: dffffc0000000000 R11: fffff52000861ec5 R12: ffffc9000430fc20 [ 83.230237][ T5821] R13: 00000000000fffff R14: ffff888075225318 R15: 0000000000000002 [ 83.238196][ T5821] FS: 000055555bd73380(0000) GS:ffff8881261fb000(0000) knlGS:0000000000000000 [ 83.247116][ T5821] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 83.253702][ T5821] CR2: 000056510a5a8078 CR3: 000000002c584000 CR4: 00000000003526f0 [ 83.261675][ T5821] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 83.269636][ T5821] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 83.277611][ T5821] Call Trace: [ 83.280893][ T5821] [ 83.283814][ T5821] path_openat+0x2d91/0x3830 [ 83.288427][ T5821] ? arch_stack_walk+0xfc/0x150 [ 83.293284][ T5821] ? __pfx_path_openat+0x10/0x10 [ 83.298234][ T5821] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 83.304302][ T5821] do_filp_open+0x1fa/0x410 [ 83.308799][ T5821] ? __pfx_do_filp_open+0x10/0x10 [ 83.313820][ T5821] ? _raw_spin_unlock+0x28/0x50 [ 83.318683][ T5821] ? alloc_fd+0x64c/0x6c0 [ 83.323015][ T5821] do_sys_openat2+0x121/0x1c0 [ 83.327689][ T5821] ? __pfx_do_sys_openat2+0x10/0x10 [ 83.332885][ T5821] ? rcu_is_watching+0x15/0xb0 [ 83.337650][ T5821] __x64_sys_openat+0x138/0x170 [ 83.342538][ T5821] do_syscall_64+0xf6/0x210 [ 83.347039][ T5821] ? clear_bhb_loop+0x60/0xb0 [ 83.351710][ T5821] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 83.357631][ T5821] RIP: 0033:0x7f0f18eb9d59 [ 83.362088][ T5821] 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 [ 83.381681][ T5821] RSP: 002b:00007fff165516f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 83.390086][ T5821] RAX: ffffffffffffffda RBX: 0000200000000080 RCX: 00007f0f18eb9d59 [ 83.398071][ T5821] RDX: 0000000000183341 RSI: 0000200000000080 RDI: 00000000ffffff9c [ 83.406039][ T5821] RBP: 00007f0f18f4d5f0 R08: 000000000001f1ba R09: 000055555bd744c0 [ 83.414011][ T5821] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff16551720 [ 83.421984][ T5821] R13: 00007fff16551948 R14: 431bde82d7b634db R15: 00007f0f18f0303b [ 83.429983][ T5821] [ 83.432993][ T5821] Modules linked in: [ 83.437012][ T5821] ---[ end trace 0000000000000000 ]--- [ 83.442560][ T5821] RIP: 0010:may_open+0x462/0x470 [ 83.447609][ T5821] Code: 38 c1 0f 8c 9b fe ff ff 4c 89 ff e8 b8 6e ec ff e9 8e fe ff ff e8 ce 9f 8c ff 4c 89 f7 48 c7 c6 00 0a 79 8b e8 df c4 f4 fe 90 <0f> 0b 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 [ 83.467351][ T5821] RSP: 0018:ffffc9000430f940 EFLAGS: 00010246 [ 83.473488][ T5821] RAX: 000000000000003a RBX: dffffc0000000000 RCX: bf56c11bc0cc4e00 [ 83.481453][ T5821] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 83.489462][ T5821] RBP: ffffffff8e099de0 R08: ffffc9000430f627 R09: 1ffff92000861ec4 [ 83.497493][ T5821] R10: dffffc0000000000 R11: fffff52000861ec5 R12: ffffc9000430fc20 [ 83.505493][ T5821] R13: 00000000000fffff R14: ffff888075225318 R15: 0000000000000002 [ 83.513509][ T5821] FS: 000055555bd73380(0000) GS:ffff8881261fb000(0000) knlGS:0000000000000000 [ 83.522429][ T5821] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 83.529038][ T5821] CR2: 000056510a5a8078 CR3: 000000002c584000 CR4: 00000000003526f0 [ 83.537040][ T5821] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 83.545036][ T5821] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 83.553032][ T5821] Kernel panic - not syncing: Fatal exception [ 83.559434][ T5821] Kernel Offset: disabled [ 83.563765][ T5821] Rebooting in 86400 seconds..