[ OK ] Started Getty on tty2. [ OK ] Started Getty on tty1. [ OK ] Started Serial Getty on ttyS0. [ 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. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.236' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 27.366090] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 27.372859] ------------[ cut here ]------------ [ 27.380780] WARNING: CPU: 0 PID: 7975 at fs/inode.c:967 unlock_new_inode+0x9a/0xc0 [ 27.388478] Kernel panic - not syncing: panic_on_warn set ... [ 27.388478] [ 27.395833] CPU: 0 PID: 7975 Comm: syz-executor128 Not tainted 4.14.295-syzkaller #0 [ 27.403696] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 27.413026] Call Trace: [ 27.415595] dump_stack+0x1b2/0x281 [ 27.419199] panic+0x1f9/0x42d [ 27.422369] ? add_taint.cold+0x16/0x16 [ 27.426319] ? unlock_new_inode+0x9a/0xc0 [ 27.430441] ? unlock_new_inode+0x9a/0xc0 [ 27.434565] __warn.cold+0x20/0x44 [ 27.438106] ? ist_end_non_atomic+0x10/0x10 [ 27.442406] ? unlock_new_inode+0x9a/0xc0 [ 27.446525] report_bug+0x208/0x250 [ 27.450128] do_error_trap+0x195/0x2d0 [ 27.453991] ? math_error+0x2d0/0x2d0 [ 27.457763] ? trace_hardirqs_on+0x10/0x10 [ 27.461972] ? trace_hardirqs_on+0x10/0x10 [ 27.466191] ? __unlock_page_memcg+0x4f/0x100 [ 27.470664] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 27.475492] invalid_op+0x1b/0x40 [ 27.478925] RIP: 0010:unlock_new_inode+0x9a/0xc0 [ 27.483651] RSP: 0018:ffff88808db278a8 EFLAGS: 00010297 [ 27.488991] RAX: ffff8880b4042140 RBX: ffff88808df2d368 RCX: 0000000000005fcc [ 27.496244] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff88808df2d3f4 [ 27.503487] RBP: 0000000000000000 R08: ffffffff8b9d1960 R09: 0000000000040579 [ 27.510739] R10: ffff8880b4042a68 R11: ffff8880b4042140 R12: ffff88808df2d440 [ 27.517994] R13: ffff88808df2d3f0 R14: ffff8880b4859940 R15: ffff88808df2d368 [ 27.525256] ? unlock_new_inode+0x9a/0xc0 [ 27.529380] nilfs_new_inode+0x59f/0x6f0 [ 27.533417] ? nilfs_segctor_do_construct+0x37a0/0x78d0 [ 27.538756] ? nilfs_set_inode_flags+0xb0/0xb0 [ 27.543321] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 27.548750] ? nilfs_transaction_begin+0x274/0xa00 [ 27.553657] nilfs_create+0xd2/0x2a0 [ 27.557358] ? nilfs_get_dentry+0x160/0x160 [ 27.561658] ? nilfs_get_dentry+0x160/0x160 [ 27.565955] lookup_open+0x77a/0x1750 [ 27.569735] ? vfs_mkdir+0x6e0/0x6e0 [ 27.573431] path_openat+0xe08/0x2970 [ 27.577209] ? path_lookupat+0x780/0x780 [ 27.581249] ? trace_hardirqs_on+0x10/0x10 [ 27.585457] ? __lock_acquire+0x5fc/0x3f20 [ 27.589668] do_filp_open+0x179/0x3c0 [ 27.593445] ? may_open_dev+0xe0/0xe0 [ 27.597219] ? lock_downgrade+0x740/0x740 [ 27.601340] ? do_raw_spin_unlock+0x164/0x220 [ 27.605814] ? _raw_spin_unlock+0x29/0x40 [ 27.609939] ? __alloc_fd+0x1be/0x490 [ 27.613718] do_sys_open+0x296/0x410 [ 27.617408] ? filp_open+0x60/0x60 [ 27.620930] ? __close_fd+0x159/0x230 [ 27.624709] ? do_syscall_64+0x4c/0x640 [ 27.628657] ? compat_SyS_openat+0x30/0x30 [ 27.632865] do_syscall_64+0x1d5/0x640 [ 27.636727] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 27.641892] RIP: 0033:0x7f2ea558d379 [ 27.645579] RSP: 002b:00007ffc24370508 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 [ 27.653263] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f2ea558d379 [ 27.660505] RDX: 0000000000000073 RSI: 0000000000000000 RDI: 0000000020000040 [ 27.667745] RBP: 00007f2ea554cbe0 R08: 00005555556532c0 R09: 0000000000000000 [ 27.674988] R10: 00007ffc243703d0 R11: 0000000000000246 R12: 00007f2ea554cc70 [ 27.682235] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 27.689812] Kernel Offset: disabled [ 27.693487] Rebooting in 86400 seconds..