[ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.118' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 27.822290] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 27.829193] ------------[ cut here ]------------ [ 27.836943] WARNING: CPU: 0 PID: 7980 at fs/inode.c:967 unlock_new_inode+0x9a/0xc0 [ 27.844629] Kernel panic - not syncing: panic_on_warn set ... [ 27.844629] [ 27.851984] CPU: 0 PID: 7980 Comm: syz-executor405 Not tainted 4.14.295-syzkaller #0 [ 27.859858] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 27.869202] Call Trace: [ 27.871772] dump_stack+0x1b2/0x281 [ 27.875379] panic+0x1f9/0x42d [ 27.878550] ? add_taint.cold+0x16/0x16 [ 27.882505] ? unlock_new_inode+0x9a/0xc0 [ 27.886630] ? unlock_new_inode+0x9a/0xc0 [ 27.890754] __warn.cold+0x20/0x44 [ 27.894271] ? ist_end_non_atomic+0x10/0x10 [ 27.898567] ? unlock_new_inode+0x9a/0xc0 [ 27.902691] report_bug+0x208/0x250 [ 27.906298] do_error_trap+0x195/0x2d0 [ 27.910162] ? math_error+0x2d0/0x2d0 [ 27.913937] ? trace_hardirqs_on+0x10/0x10 [ 27.918146] ? trace_hardirqs_on+0x10/0x10 [ 27.922360] ? __unlock_page_memcg+0x4f/0x100 [ 27.926834] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 27.931657] invalid_op+0x1b/0x40 [ 27.935090] RIP: 0010:unlock_new_inode+0x9a/0xc0 [ 27.939821] RSP: 0018:ffff8880a92778a8 EFLAGS: 00010297 [ 27.945159] RAX: ffff888098b6e180 RBX: ffff88808e382368 RCX: 0000000000004c5f [ 27.952407] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff88808e3823f4 [ 27.959650] RBP: 0000000000000000 R08: ffffffff8b9c7df8 R09: 0000000000040575 [ 27.966894] R10: ffff888098b6eaa8 R11: ffff888098b6e180 R12: ffff88808e382440 [ 27.974143] R13: ffff88808e3823f0 R14: ffff888096b87780 R15: ffff88808e382368 [ 27.981406] ? unlock_new_inode+0x9a/0xc0 [ 27.985529] nilfs_new_inode+0x59f/0x6f0 [ 27.989566] ? nilfs_segctor_do_construct+0x37a0/0x78d0 [ 27.994905] ? nilfs_set_inode_flags+0xb0/0xb0 [ 27.999464] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 28.004891] ? nilfs_transaction_begin+0x274/0xa00 [ 28.009801] nilfs_create+0xd2/0x2a0 [ 28.013489] ? nilfs_get_dentry+0x160/0x160 [ 28.017786] ? nilfs_get_dentry+0x160/0x160 [ 28.022085] lookup_open+0x77a/0x1750 [ 28.025869] ? vfs_mkdir+0x6e0/0x6e0 [ 28.029566] path_openat+0xe08/0x2970 [ 28.033346] ? path_lookupat+0x780/0x780 [ 28.037383] ? trace_hardirqs_on+0x10/0x10 [ 28.041597] ? __lock_acquire+0x5fc/0x3f20 [ 28.045812] do_filp_open+0x179/0x3c0 [ 28.049587] ? may_open_dev+0xe0/0xe0 [ 28.053364] ? lock_downgrade+0x740/0x740 [ 28.057488] ? do_raw_spin_unlock+0x164/0x220 [ 28.061960] ? _raw_spin_unlock+0x29/0x40 [ 28.066095] ? __alloc_fd+0x1be/0x490 [ 28.069883] do_sys_open+0x296/0x410 [ 28.073589] ? filp_open+0x60/0x60 [ 28.077131] ? __close_fd+0x159/0x230 [ 28.080913] ? do_syscall_64+0x4c/0x640 [ 28.084866] ? do_sys_open+0x410/0x410 [ 28.088743] do_syscall_64+0x1d5/0x640 [ 28.092706] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 28.097876] RIP: 0033:0x7fd45e8db359 [ 28.101567] RSP: 002b:00007fffec612a08 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 28.109251] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fd45e8db359 [ 28.116496] RDX: 0000000000000000 RSI: 000000000014da42 RDI: 00000000200000c0 [ 28.123742] RBP: 00007fd45e89abc0 R08: 00005555562112c0 R09: 0000000000000000 [ 28.131000] R10: 00007fffec6128d0 R11: 0000000000000246 R12: 00007fd45e89ac50 [ 28.138253] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 28.145866] Kernel Offset: disabled [ 28.149555] Rebooting in 86400 seconds..