[ 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 '10.128.0.146' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 34.471434] ------------[ cut here ]------------ [ 34.476407] WARNING: CPU: 0 PID: 8092 at fs/inode.c:979 unlock_new_inode.cold+0x11/0x3f [ 34.477379] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 34.484902] Kernel panic - not syncing: panic_on_warn set ... [ 34.484902] [ 34.502025] CPU: 0 PID: 8092 Comm: syz-executor317 Not tainted 4.19.211-syzkaller #0 [ 34.509885] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 34.519220] Call Trace: [ 34.521896] dump_stack+0x1fc/0x2ef [ 34.525503] panic+0x26a/0x50e [ 34.528714] ? __warn_printk+0xf3/0xf3 [ 34.532597] ? unlock_new_inode.cold+0x11/0x3f [ 34.537160] ? __probe_kernel_read+0x130/0x1b0 [ 34.541719] ? __warn.cold+0x5/0x5a [ 34.545324] ? __warn+0xe4/0x200 [ 34.548668] ? unlock_new_inode.cold+0x11/0x3f [ 34.553230] __warn.cold+0x20/0x5a [ 34.556749] ? unlock_new_inode.cold+0x11/0x3f [ 34.561326] report_bug+0x262/0x2b0 [ 34.564936] do_error_trap+0x1d7/0x310 [ 34.568802] ? math_error+0x310/0x310 [ 34.572585] ? __irq_work_queue_local+0x101/0x160 [ 34.577452] ? irq_work_queue+0x29/0x80 [ 34.581409] ? error_entry+0x72/0xd0 [ 34.585101] ? trace_hardirqs_off_caller+0x6e/0x210 [ 34.590098] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 34.594955] invalid_op+0x14/0x20 [ 34.598393] RIP: 0010:unlock_new_inode.cold+0x11/0x3f [ 34.603564] Code: b3 e8 bf bc 6d f9 48 c7 c7 80 b0 74 88 e8 1e ee fe ff 0f 0b e9 4a 70 b4 f9 e8 a7 bc 6d f9 48 c7 c7 80 b0 74 88 e8 06 ee fe ff <0f> 0b b8 ff ff 37 00 4c 89 e2 48 c1 ea 03 48 c1 e0 2a 80 3c 02 00 [ 34.622541] RSP: 0018:ffff888091e6f7e0 EFLAGS: 00010286 [ 34.627883] RAX: 0000000000000024 RBX: ffff88808dbd0368 RCX: 0000000000000000 [ 34.635217] RDX: 0000000000000000 RSI: ffffffff814dff01 RDI: ffffed10123cdeee [ 34.642554] RBP: 0000000000008000 R08: 0000000000000024 R09: 0000000000000000 [ 34.649806] R10: 0000000000000005 R11: 0000000000000000 R12: ffff88808dbd0438 [ 34.657053] R13: ffff88808dbd03f0 R14: 0000000000000000 R15: fffffffffffffffb [ 34.664320] ? vprintk_func+0x81/0x180 [ 34.668196] nilfs_new_inode+0x61f/0x760 [ 34.672247] ? nilfs_set_inode_flags+0x110/0x110 [ 34.676987] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 34.681985] ? nilfs_transaction_begin+0x2a8/0xa50 [ 34.686896] nilfs_create+0xfe/0x2f0 [ 34.690591] ? nilfs_get_dentry+0x1a0/0x1a0 [ 34.694901] ? _raw_spin_unlock+0x29/0x40 [ 34.699032] ? nilfs_get_dentry+0x1a0/0x1a0 [ 34.703605] lookup_open+0x893/0x1a20 [ 34.707394] ? vfs_mkdir+0x7a0/0x7a0 [ 34.711100] ? unlazy_walk+0x1a4/0x540 [ 34.714973] ? check_preemption_disabled+0x41/0x280 [ 34.719985] path_openat+0x1094/0x2df0 [ 34.723857] ? path_lookupat+0x8d0/0x8d0 [ 34.727897] ? mark_held_locks+0xf0/0xf0 [ 34.731939] ? __lock_acquire+0x6de/0x3ff0 [ 34.736155] do_filp_open+0x18c/0x3f0 [ 34.739937] ? may_open_dev+0xf0/0xf0 [ 34.743741] ? lock_downgrade+0x720/0x720 [ 34.747868] ? lock_acquire+0x170/0x3c0 [ 34.751821] ? __alloc_fd+0x34/0x570 [ 34.755513] ? do_raw_spin_unlock+0x171/0x230 [ 34.759994] ? _raw_spin_unlock+0x29/0x40 [ 34.764121] ? __alloc_fd+0x28d/0x570 [ 34.767904] do_sys_open+0x3b3/0x520 [ 34.771595] ? filp_open+0x70/0x70 [ 34.775116] ? fput+0x2b/0x190 [ 34.778290] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 34.783820] ? trace_hardirqs_off_caller+0x6e/0x210 [ 34.788816] ? do_syscall_64+0x21/0x620 [ 34.792773] do_syscall_64+0xf9/0x620 [ 34.796658] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 34.801835] RIP: 0033:0x7f6065343379 [ 34.805529] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 c0 ff ff ff f7 d8 64 89 01 48 [ 34.824404] RSP: 002b:00007ffdf38cc8b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 [ 34.832092] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f6065343379 [ 34.839340] RDX: 0000000000000073 RSI: 0000000000000000 RDI: 0000000020000040 [ 34.846602] RBP: 00007f6065302be0 R08: 00005555574c82c0 R09: 0000000000000000 [ 34.853855] R10: 00007ffdf38cc780 R11: 0000000000000246 R12: 00007f6065302c70 [ 34.861105] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 34.868610] Kernel Offset: disabled [ 34.872432] Rebooting in 86400 seconds..