[  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 '10.128.10.9' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   37.298776] audit: type=1800 audit(1672431232.541:2): pid=7994 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor392" name="bus" dev="loop0" ino=18 res=0
[   37.299772] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[   37.393069] ------------[ cut here ]------------
[   37.397972] kernel BUG at mm/filemap.c:1154!
[   37.403930] invalid opcode: 0000 [#1] PREEMPT SMP KASAN
[   37.409286] Modules linked in:
[   37.412458] CPU: 0 PID: 7999 Comm: segctord Not tainted 4.14.302-syzkaller #0
[   37.419774] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
[   37.429108] task: ffff8880b29562c0 task.stack: ffff888095fb8000
[   37.435140] RIP: 0010:end_page_writeback+0x1a2/0x1c0
[   37.440215] RSP: 0018:ffff888095fbfb70 EFLAGS: 00010297
[   37.445551] RAX: ffff8880b29562c0 RBX: ffffea000269a740 RCX: 1ffff1101652ad6e
[   37.452794] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000282
[   37.460036] RBP: ffffea000269a740 R08: ffffffff8b9dca70 R09: 0000000000000001
[   37.467285] R10: 0000000000000000 R11: 0000000000000000 R12: ffffea000269a760
[   37.474525] R13: ffffea00027e3b20 R14: dffffc0000000000 R15: ffff88808e364400
[   37.481771] FS:  0000000000000000(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000
[   37.489965] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   37.495825] CR2: 000055e4bb6d02c8 CR3: 0000000098c95000 CR4: 00000000003406f0
[   37.503072] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   37.510324] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   37.517613] Call Trace:
[   37.520273]  nilfs_segctor_do_construct+0x4bf4/0x79c0
[   37.525464]  ? nilfs_segctor_scan_file+0x630/0x630
[   37.530405]  ? lock_acquire+0x170/0x3f0
[   37.534365]  ? lock_downgrade+0x740/0x740
[   37.538520]  ? do_raw_spin_unlock+0x164/0x220
[   37.542994]  ? _raw_spin_unlock+0x29/0x40
[   37.547125]  nilfs_segctor_construct+0x6db/0x8e0
[   37.551863]  nilfs_segctor_thread+0x3ad/0xdb0
[   37.556336]  ? nilfs_segctor_construct+0x8e0/0x8e0
[   37.561238]  ? __schedule+0x1450/0x1de0
[   37.565215]  ? wait_woken+0x230/0x230
[   37.569088]  ? nilfs_segctor_construct+0x8e0/0x8e0
[   37.573998]  kthread+0x30d/0x420
[   37.577339]  ? kthread_create_on_node+0xd0/0xd0
[   37.581981]  ret_from_fork+0x24/0x30
[   37.585669] Code: 89 e7 e8 f2 76 16 00 e9 53 ff ff ff 48 89 df e8 e5 76 16 00 e9 ce fe ff ff 4c 89 e7 e8 d8 76 16 00 e9 90 fe ff ff e8 ce b5 ec ff <0f> 0b 48 89 ef e8 c4 76 16 00 e9 4d ff ff ff 66 66 2e 0f 1f 84 
[   37.604759] RIP: end_page_writeback+0x1a2/0x1c0 RSP: ffff888095fbfb70
[   37.612052] ---[ end trace 0d62e84782b49dfd ]---
[   37.616840] Kernel panic - not syncing: Fatal exception
[   37.622413] Kernel Offset: disabled
[   37.626028] Rebooting in 86400 seconds..