[ 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 '10.128.0.252' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 154.913436] ====================================================== [ 154.913436] WARNING: the mand mount option is being deprecated and [ 154.913436] will be removed in v5.15! [ 154.913436] ====================================================== [ 154.937382] JFS: discard option not supported on device executing program [ 155.059894] JFS: discard option not supported on device executing program [ 155.187653] JFS: discard option not supported on device executing program executing program [ 155.309322] JFS: discard option not supported on device executing program [ 155.393626] JFS: discard option not supported on device executing program [ 155.495720] JFS: discard option not supported on device executing program [ 155.580791] JFS: discard option not supported on device executing program [ 155.657381] JFS: discard option not supported on device [ 155.748660] JFS: discard option not supported on device executing program executing program [ 155.886032] JFS: discard option not supported on device executing program [ 155.963356] JFS: discard option not supported on device [ 156.053491] JFS: discard option not supported on device executing program [ 156.191729] JFS: discard option not supported on device executing program executing program [ 156.357552] JFS: discard option not supported on device [ 156.463109] JFS: discard option not supported on device executing program [ 156.619018] JFS: discard option not supported on device executing program [ 156.755882] JFS: discard option not supported on device executing program [ 156.887877] JFS: discard option not supported on device executing program executing program [ 157.037375] JFS: discard option not supported on device [ 157.123582] JFS: discard option not supported on device executing program executing program [ 157.268659] JFS: discard option not supported on device [ 157.353342] JFS: discard option not supported on device executing program executing program [ 157.487952] JFS: discard option not supported on device executing program [ 157.565029] JFS: discard option not supported on device executing program [ 157.675416] JFS: discard option not supported on device [ 157.773575] JFS: discard option not supported on device executing program executing program [ 157.918158] JFS: discard option not supported on device executing program [ 157.999417] JFS: discard option not supported on device executing program [ 158.082399] JFS: discard option not supported on device executing program [ 158.170471] JFS: discard option not supported on device [ 158.243280] JFS: discard option not supported on device executing program executing program [ 158.389234] JFS: discard option not supported on device [ 158.473226] JFS: discard option not supported on device executing program [ 158.625561] JFS: discard option not supported on device executing program executing program [ 158.767229] JFS: discard option not supported on device [ 158.843531] JFS: discard option not supported on device executing program [ 158.979794] JFS: discard option not supported on device executing program [ 159.120357] JFS: discard option not supported on device executing program executing program [ 159.248783] JFS: discard option not supported on device [ 159.346490] JFS: discard option not supported on device executing program executing program [ 159.497738] JFS: discard option not supported on device executing program [ 159.593603] JFS: discard option not supported on device executing program [ 159.686367] JFS: discard option not supported on device [ 159.757238] JFS: discard option not supported on device executing program [ 159.885426] JFS: discard option not supported on device executing program executing program [ 160.037366] JFS: discard option not supported on device [ 160.118947] JFS: discard option not supported on device executing program executing program [ 160.250677] JFS: discard option not supported on device [ 160.323143] JFS: discard option not supported on device executing program executing program [ 160.458797] JFS: discard option not supported on device [ 160.543317] JFS: discard option not supported on device executing program [ 160.675877] JFS: discard option not supported on device executing program [ 160.809867] JFS: discard option not supported on device executing program executing program [ 160.947348] JFS: discard option not supported on device [ 161.023399] JFS: discard option not supported on device executing program executing program [ 161.174555] JFS: discard option not supported on device [ 161.263344] JFS: discard option not supported on device [ 161.287459] kasan: CONFIG_KASAN_INLINE enabled [ 161.292231] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 161.299732] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 161.305950] Modules linked in: [ 161.309121] CPU: 0 PID: 7966 Comm: syz-executor798 Not tainted 4.14.302-syzkaller #0 [ 161.316974] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 161.326300] task: ffff8880ac27a6c0 task.stack: ffff888095eb8000 [ 161.332334] RIP: 0010:lbmStartIO+0x14a/0x490 [ 161.336711] RSP: 0018:ffff888095ebfaf8 EFLAGS: 00010202 [ 161.342043] RAX: dffffc0000000000 RBX: ffff8880aa9ccf00 RCX: 0000000000000003 [ 161.349286] RDX: 000000000000001c RSI: 0000000000000000 RDI: 00000000000000e0 [ 161.356531] RBP: ffff88809e03d8c0 R08: 0000000000000001 R09: ffff88809e03d8c0 [ 161.363862] R10: ffff88809e03d947 R11: 0000000000000000 R12: ffff8880b3da6940 [ 161.371103] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 161.378584] FS: 00005555561e3300(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000 [ 161.386792] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 161.392648] CR2: 00007ffd7ff37e77 CR3: 00000000b5304000 CR4: 00000000003406f0 [ 161.399893] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 161.407137] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 161.414387] Call Trace: [ 161.417057] lbmWrite+0x254/0x380 [ 161.420582] lmNextPage.isra.0+0x263/0x700 [ 161.424796] lmWriteRecord+0x8b2/0xe30 [ 161.428677] ? mark_held_locks+0xa6/0xf0 [ 161.432740] ? _raw_spin_unlock_irqrestore+0x79/0xe0 [ 161.437930] lmLogSync+0x126/0x660 [ 161.441458] ? lmWriteRecord+0xe30/0xe30 [ 161.445501] ? dqput+0x30/0x30 [ 161.449456] jfs_syncpt+0x66/0x70 [ 161.452888] jfs_sync_fs+0x80/0xa0 [ 161.456402] ? jfs_statfs+0x510/0x510 [ 161.460177] sync_filesystem+0xe2/0x230 [ 161.464125] generic_shutdown_super+0x70/0x370 [ 161.468680] kill_block_super+0x95/0xe0 [ 161.472623] deactivate_locked_super+0x6c/0xd0 [ 161.477204] deactivate_super+0x7f/0xa0 [ 161.481150] cleanup_mnt+0x186/0x2c0 [ 161.484852] task_work_run+0x11f/0x190 [ 161.488725] exit_to_usermode_loop+0x1ad/0x200 [ 161.493285] do_syscall_64+0x4a3/0x640 [ 161.497236] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 161.502396] RIP: 0033:0x7f936f259cd7 [ 161.506076] RSP: 002b:00007ffcc5f03948 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 161.513755] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f936f259cd7 [ 161.520994] RDX: 00007ffcc5f03a0a RSI: 000000000000000a RDI: 00007ffcc5f03a00 [ 161.528238] RBP: 00007ffcc5f03a00 R08: 00000000ffffffff R09: 00007ffcc5f037e0 [ 161.535748] R10: 00005555561e4683 R11: 0000000000000206 R12: 00007ffcc5f04a70 [ 161.543096] R13: 00005555561e45f0 R14: 00007ffcc5f03970 R15: 0000000000000039 [ 161.550434] 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 [ 161.569498] RIP: lbmStartIO+0x14a/0x490 RSP: ffff888095ebfaf8 [ 161.575662] ---[ end trace 5768fdf2fab5510a ]--- [ 161.580493] Kernel panic - not syncing: Fatal exception [ 161.586017] Kernel Offset: disabled [ 161.589627] Rebooting in 86400 seconds..