./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3601769404 <...> Warning: Permanently added '10.128.0.34' (ED25519) to the list of known hosts. execve("./syz-executor3601769404", ["./syz-executor3601769404"], 0x7ffe8ce3ed80 /* 10 vars */) = 0 brk(NULL) = 0x55555ad6e000 brk(0x55555ad6ed00) = 0x55555ad6ed00 arch_prctl(ARCH_SET_FS, 0x55555ad6e380) = 0 set_tid_address(0x55555ad6e650) = 5841 set_robust_list(0x55555ad6e660, 24) = 0 rseq(0x55555ad6eca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3601769404", 4096) = 28 getrandom("\x34\x93\x09\xd0\xa6\x18\xa0\xd9", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55555ad6ed00 brk(0x55555ad8fd00) = 0x55555ad8fd00 brk(0x55555ad90000) = 0x55555ad90000 mprotect(0x7ffa1de72000, 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 5842 attached [pid 5842] set_robust_list(0x55555ad6e660, 24 [pid 5841] <... clone resumed>, child_tidptr=0x55555ad6e650) = 5842 [pid 5842] <... set_robust_list resumed>) = 0 [pid 5842] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5842] setpgid(0, 0) = 0 [pid 5842] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5842] write(3, "1000", 4) = 4 [pid 5842] close(3) = 0 executing program [pid 5842] write(1, "executing program\n", 18) = 18 [pid 5842] memfd_create("syzkaller", 0) = 3 [pid 5842] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ffa15800000 [pid 5842] 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 5842] munmap(0x7ffa15800000, 138412032) = 0 [pid 5842] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5842] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5842] close(3) = 0 [pid 5842] close(4) = 0 [pid 5842] mkdir("./file0", 0777) = 0 [ 89.864023][ T5842] loop0: detected capacity change from 0 to 4096 [ 89.896691][ T5842] ntfs3(loop0): Different NTFS sector size (4096) and media sector size (512). [pid 5842] mount("/dev/loop0", "./file0", "ntfs3", 0, "showmeta,umask=00000000000000000000001,force,uid=0x0000000000000000,discard,dmask=000000000000000000"...) = 0 [pid 5842] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5842] chdir("./file0") = 0 [pid 5842] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [ 89.966020][ T5842] VFS_BUG_ON_INODE(!IS_ANON_FILE(inode)) encountered for inode ffff8880724735b8 [ 89.966225][ T5842] ------------[ cut here ]------------ [ 89.981063][ T5842] kernel BUG at fs/namei.c:3483! [ 89.987244][ T5842] Oops: invalid opcode: 0000 [#1] SMP KASAN PTI [ 89.993515][ T5842] CPU: 0 UID: 0 PID: 5842 Comm: syz-executor360 Not tainted 6.16.0-rc5-syzkaller #0 PREEMPT(full) [ 90.004187][ T5842] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 90.014255][ T5842] RIP: 0010:may_open+0x4b1/0x4c0 [ 90.019218][ T5842] 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 [ 90.038831][ T5842] RSP: 0018:ffffc90003f87940 EFLAGS: 00010246 [ 90.044907][ T5842] RAX: 000000000000004d RBX: dffffc0000000000 RCX: 158c895b4c6f3300 [ 90.052888][ T5842] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 90.060862][ T5842] RBP: 0000000000109042 R08: ffffc90003f87667 R09: 1ffff920007f0ecc [ 90.068836][ T5842] R10: dffffc0000000000 R11: fffff520007f0ecd R12: 0000000000000000 [ 90.076809][ T5842] R13: ffffffff8e29ca80 R14: ffff8880724735b8 R15: 0000000000000006 [ 90.084798][ T5842] FS: 000055555ad6e380(0000) GS:ffff888125c51000(0000) knlGS:0000000000000000 [ 90.093733][ T5842] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 90.100334][ T5842] CR2: 00007f084598dd30 CR3: 0000000073c6a000 CR4: 00000000003526f0 [ 90.108312][ T5842] Call Trace: [ 90.111597][ T5842] [ 90.114639][ T5842] path_openat+0x2d91/0x3830 [ 90.119258][ T5842] ? __pfx_path_openat+0x10/0x10 [ 90.124205][ T5842] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 90.130287][ T5842] do_filp_open+0x1fa/0x410 [ 90.134803][ T5842] ? __lock_acquire+0xab9/0xd20 [ 90.139659][ T5842] ? __pfx_do_filp_open+0x10/0x10 [ 90.144792][ T5842] ? _raw_spin_unlock+0x28/0x50 [ 90.149669][ T5842] ? alloc_fd+0x64c/0x6c0 [ 90.154019][ T5842] do_sys_openat2+0x121/0x1c0 [ 90.158709][ T5842] ? __pfx_do_sys_openat2+0x10/0x10 [ 90.163921][ T5842] ? rcu_is_watching+0x15/0xb0 [ 90.168696][ T5842] __x64_sys_open+0x11e/0x150 [ 90.173384][ T5842] do_syscall_64+0xfa/0x3b0 [ 90.177904][ T5842] ? lockdep_hardirqs_on+0x9c/0x150 [ 90.183115][ T5842] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 90.189188][ T5842] ? clear_bhb_loop+0x60/0xb0 [ 90.193878][ T5842] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 90.199798][ T5842] RIP: 0033:0x7ffa1ddded59 [ 90.204232][ T5842] 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 [ 90.223934][ T5842] RSP: 002b:00007ffcaa4b44f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 90.232359][ T5842] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ffa1ddded59 [ 90.240335][ T5842] RDX: 0000000000000000 RSI: 0000000000109042 RDI: 0000200000000000 [ 90.248307][ T5842] RBP: 00007ffa1de725f0 R08: 000000000001f1b6 R09: 000055555ad6f4c0 [ 90.256367][ T5842] R10: 00007ffcaa4b43c0 R11: 0000000000000246 R12: 00007ffcaa4b4520 [ 90.264342][ T5842] R13: 00007ffcaa4b4748 R14: 431bde82d7b634db R15: 00007ffa1de2803b [ 90.272332][ T5842] [ 90.275355][ T5842] Modules linked in: [ 90.279426][ T5842] ---[ end trace 0000000000000000 ]--- [ 90.285036][ T5842] RIP: 0010:may_open+0x4b1/0x4c0 [ 90.290145][ T5842] 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 [ 90.310096][ T5842] RSP: 0018:ffffc90003f87940 EFLAGS: 00010246 [ 90.316192][ T5842] RAX: 000000000000004d RBX: dffffc0000000000 RCX: 158c895b4c6f3300 [ 90.324216][ T5842] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 90.332238][ T5842] RBP: 0000000000109042 R08: ffffc90003f87667 R09: 1ffff920007f0ecc [ 90.340249][ T5842] R10: dffffc0000000000 R11: fffff520007f0ecd R12: 0000000000000000 [ 90.348337][ T5842] R13: ffffffff8e29ca80 R14: ffff8880724735b8 R15: 0000000000000006 [ 90.356357][ T5842] FS: 000055555ad6e380(0000) GS:ffff888125c51000(0000) knlGS:0000000000000000 [ 90.365355][ T5842] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 90.372028][ T5842] CR2: 00007f084598dd30 CR3: 0000000073c6a000 CR4: 00000000003526f0 [ 90.380067][ T5842] Kernel panic - not syncing: Fatal exception [ 90.386511][ T5842] Kernel Offset: disabled [ 90.390842][ T5842] Rebooting in 86400 seconds..