[  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 '10.128.0.40' (ECDSA) to the list of known hosts.
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syzkaller login: [   47.469904] kasan: CONFIG_KASAN_INLINE enabled
[   47.479875] kasan: GPF could be caused by NULL-ptr deref or user memory access
[   47.494275] general protection fault: 0000 [#1] PREEMPT SMP KASAN
[   47.500529] Modules linked in:
[   47.503822] CPU: 0 PID: 8004 Comm: syz-executor470 Not tainted 4.14.305-syzkaller #0
[   47.511704] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
[   47.521057] task: ffff8880b54e85c0 task.stack: ffff888095f28000
[   47.527101] RIP: 0010:lbmStartIO+0x14a/0x490
[   47.531489] RSP: 0018:ffff888095f2faf8 EFLAGS: 00010202
[   47.536839] RAX: dffffc0000000000 RBX: ffff8880a153a000 RCX: 0000000000000003
[   47.544095] RDX: 000000000000001c RSI: 0000000000000000 RDI: 00000000000000e0
[   47.551354] RBP: ffff8880b3b0b800 R08: 0000000000000001 R09: ffff8880b3b0b800
[   47.558622] R10: ffff8880b3b0b887 R11: 0000000000000000 R12: ffff8880b3153b00
[   47.565882] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[   47.573146] FS:  000055555752c300(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000
[   47.581364] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.587231] CR2: 0000556ef4b34160 CR3: 00000000ab5c7000 CR4: 00000000003406f0
[   47.594489] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   47.601742] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   47.608996] Call Trace:
[   47.611603]  lbmWrite+0x254/0x380
[   47.615042]  lmNextPage.isra.0+0x263/0x700
[   47.619270]  lmWriteRecord+0x8b2/0xe30
[   47.623140]  ? mark_held_locks+0xa6/0xf0
[   47.627184]  ? _raw_spin_unlock_irqrestore+0x79/0xe0
[   47.632272]  lmLogSync+0x126/0x660
[   47.635814]  ? lmWriteRecord+0xe30/0xe30
[   47.639877]  ? dqput+0x30/0x30
[   47.643074]  jfs_syncpt+0x66/0x70
[   47.646513]  jfs_sync_fs+0x80/0xa0
[   47.650035]  ? jfs_statfs+0x510/0x510
[   47.653827]  sync_filesystem+0xe2/0x230
[   47.657792]  generic_shutdown_super+0x70/0x370
[   47.662371]  kill_block_super+0x95/0xe0
[   47.666329]  deactivate_locked_super+0x6c/0xd0
[   47.670897]  deactivate_super+0x7f/0xa0
[   47.674859]  cleanup_mnt+0x186/0x2c0
[   47.678557]  task_work_run+0x11f/0x190
[   47.682430]  exit_to_usermode_loop+0x1ad/0x200
[   47.686997]  do_syscall_64+0x4a3/0x640
[   47.690874]  entry_SYSCALL_64_after_hwframe+0x5e/0xd3
[   47.696047] RIP: 0033:0x7f3d8ec36e37
[   47.699742] RSP: 002b:00007ffebe266008 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[   47.707434] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f3d8ec36e37
[   47.714686] RDX: 00007ffebe2660ca RSI: 000000000000000a RDI: 00007ffebe2660c0
[   47.721940] RBP: 00007ffebe2660c0 R08: 00000000ffffffff R09: 00007ffebe265ea0
[   47.729195] R10: 000055555752d683 R11: 0000000000000202 R12: 00007ffebe267130
[   47.736447] R13: 000055555752d5f0 R14: 00007ffebe266030 R15: 0000000000000039
[   47.743703] Code: 48 c1 ea 03 80 3c 02 00 0f 85 06 03 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b 6c 24 20 49 8d bd e0 00 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 d5 02 00 00 4d 8b ad e0 00 00 00 4d 39 ee 74 
[   47.762853] RIP: lbmStartIO+0x14a/0x490 RSP: ffff888095f2faf8
[   47.769851] ---[ end trace 6fc22547c7b541fc ]---
[   47.774639] Kernel panic - not syncing: Fatal exception
[   47.780241] Kernel Offset: disabled
[   47.783860] Rebooting in 86400 seconds..