[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.42' (ECDSA) to the list of known hosts. executing program executing program syzkaller login: [ 365.946666] JFS: discard option not supported on device executing program executing program [ 365.994093] JFS: discard option not supported on device [ 366.034074] JFS: discard option not supported on device [ 366.094066] JFS: discard option not supported on device executing program executing program [ 366.175630] JFS: discard option not supported on device executing program [ 366.250773] JFS: discard option not supported on device executing program [ 366.324012] JFS: discard option not supported on device executing program [ 366.382481] JFS: discard option not supported on device executing program [ 366.434198] JFS: discard option not supported on device [ 366.492196] JFS: discard option not supported on device executing program executing program [ 366.568885] JFS: discard option not supported on device executing program executing program [ 366.633193] JFS: discard option not supported on device [ 366.672639] JFS: discard option not supported on device [ 366.723386] JFS: discard option not supported on device executing program executing program [ 366.812135] JFS: discard option not supported on device executing program [ 366.862612] JFS: discard option not supported on device executing program [ 366.922524] JFS: discard option not supported on device executing program [ 366.972947] JFS: discard option not supported on device executing program [ 367.034455] JFS: discard option not supported on device executing program [ 367.092504] JFS: discard option not supported on device executing program [ 367.161362] JFS: discard option not supported on device executing program [ 367.223702] JFS: discard option not supported on device executing program [ 367.282505] JFS: discard option not supported on device executing program [ 367.332962] JFS: discard option not supported on device executing program [ 367.392355] JFS: discard option not supported on device executing program [ 367.455255] JFS: discard option not supported on device [ 367.513476] JFS: discard option not supported on device executing program executing program [ 367.596566] JFS: discard option not supported on device executing program [ 367.642437] JFS: discard option not supported on device executing program [ 367.705790] JFS: discard option not supported on device executing program [ 367.762861] JFS: discard option not supported on device executing program [ 367.831558] JFS: discard option not supported on device executing program [ 367.893957] JFS: discard option not supported on device [ 367.961667] JFS: discard option not supported on device executing program executing program [ 368.043094] JFS: discard option not supported on device executing program [ 368.092965] JFS: discard option not supported on device executing program [ 368.162703] JFS: discard option not supported on device executing program [ 368.232841] JFS: discard option not supported on device executing program [ 368.292655] JFS: discard option not supported on device executing program [ 368.343075] JFS: discard option not supported on device executing program [ 368.412508] JFS: discard option not supported on device executing program [ 368.473327] JFS: discard option not supported on device executing program [ 368.522953] JFS: discard option not supported on device executing program [ 368.583427] JFS: discard option not supported on device executing program executing program [ 368.663064] JFS: discard option not supported on device executing program [ 368.712123] JFS: discard option not supported on device [ 368.762945] JFS: discard option not supported on device executing program executing program [ 368.847965] JFS: discard option not supported on device executing program [ 368.902615] JFS: discard option not supported on device executing program [ 368.964562] JFS: discard option not supported on device executing program [ 369.032482] JFS: discard option not supported on device executing program [ 369.082609] JFS: discard option not supported on device executing program [ 369.132430] JFS: discard option not supported on device executing program [ 369.182976] JFS: discard option not supported on device executing program [ 369.242998] JFS: discard option not supported on device executing program [ 369.295999] JFS: discard option not supported on device [ 369.362846] JFS: discard option not supported on device [ 369.375427] kasan: CONFIG_KASAN_INLINE enabled [ 369.381635] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 369.389152] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 369.395402] CPU: 1 PID: 8082 Comm: syz-executor168 Not tainted 4.19.211-syzkaller #0 [ 369.403282] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 369.412646] RIP: 0010:lbmStartIO+0x12b/0x480 [ 369.417062] Code: c1 ea 03 80 3c 02 00 0f 85 f5 02 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 ef 02 00 00 4d 8b ad e0 00 00 00 4d 39 ee 74 67 [ 369.435958] RSP: 0018:ffff88809e1afa70 EFLAGS: 00010202 [ 369.441302] RAX: dffffc0000000000 RBX: ffff8880aa266200 RCX: 0000000000000003 [ 369.448549] RDX: 000000000000001c RSI: ffffffff835f37ea RDI: 00000000000000e0 [ 369.455795] RBP: ffff8880ab6583c0 R08: 0000000000000001 R09: 0000000000000000 [ 369.463044] R10: 0000000000000005 R11: 0000000000000000 R12: ffff8880b4c5c000 [ 369.470290] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002 [ 369.477539] FS: 0000555556e08300(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 369.485741] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 369.491603] CR2: 00007fcf47798000 CR3: 00000000aba01000 CR4: 00000000003406e0 [ 369.498853] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 369.506102] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 369.513345] Call Trace: [ 369.515918] lbmWrite+0x27b/0x3a0 [ 369.519351] lmNextPage.isra.0+0x285/0x740 [ 369.523564] lmWriteRecord+0x94a/0xee0 [ 369.527431] ? mark_held_locks+0xa6/0xf0 [ 369.531473] ? _raw_spin_unlock_irqrestore+0x79/0xe0 [ 369.536557] lmLogSync+0x154/0x6e0 [ 369.540074] ? lmWriteRecord+0xee0/0xee0 [ 369.544116] ? dqput+0x30/0x30 [ 369.547289] jfs_syncpt+0x78/0x90 [ 369.550720] jfs_sync_fs+0x80/0xa0 [ 369.554237] ? jfs_statfs+0x5a0/0x5a0 [ 369.558019] sync_filesystem+0x105/0x250 [ 369.562062] generic_shutdown_super+0x70/0x370 [ 369.566622] kill_block_super+0x97/0xf0 [ 369.570594] deactivate_locked_super+0x94/0x160 [ 369.575239] deactivate_super+0x174/0x1a0 [ 369.579368] ? deactivate_locked_super+0x160/0x160 [ 369.584278] ? dput+0x31/0x640 [ 369.587447] cleanup_mnt+0x1a8/0x290 [ 369.591141] task_work_run+0x148/0x1c0 [ 369.595007] exit_to_usermode_loop+0x251/0x2a0 [ 369.599616] do_syscall_64+0x538/0x620 [ 369.603484] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 369.608654] RIP: 0033:0x7f9b69625827 [ 369.612351] Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 369.631323] RSP: 002b:00007fff33020e68 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 369.639007] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f9b69625827 [ 369.646259] RDX: 00007fff33020f2a RSI: 000000000000000a RDI: 00007fff33020f20 [ 369.653504] RBP: 00007fff33020f20 R08: 00000000ffffffff R09: 00007fff33020d00 [ 369.660751] R10: 0000555556e09683 R11: 0000000000000202 R12: 00007fff33021f90 [ 369.668002] R13: 0000555556e095f0 R14: 00007fff33020e90 R15: 000000000000003a [ 369.675253] Modules linked in: [ 369.678765] ---[ end trace acc6e9be855539af ]--- [ 369.684598] RIP: 0010:lbmStartIO+0x12b/0x480 [ 369.689021] Code: c1 ea 03 80 3c 02 00 0f 85 f5 02 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 ef 02 00 00 4d 8b ad e0 00 00 00 4d 39 ee 74 67 [ 369.708343] RSP: 0018:ffff88809e1afa70 EFLAGS: 00010202 [ 369.713741] RAX: dffffc0000000000 RBX: ffff8880aa266200 RCX: 0000000000000003 [ 369.721079] RDX: 000000000000001c RSI: ffffffff835f37ea RDI: 00000000000000e0 [ 369.728355] RBP: ffff8880ab6583c0 R08: 0000000000000001 R09: 0000000000000000 [ 369.735667] R10: 0000000000000005 R11: 0000000000000000 R12: ffff8880b4c5c000 [ 369.743018] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002 [ 369.750315] FS: 0000555556e08300(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 369.758537] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 369.764456] CR2: 00007fcf47798000 CR3: 00000000aba01000 CR4: 00000000003406e0 [ 369.771795] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 369.779166] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 369.786504] Kernel panic - not syncing: Fatal exception [ 369.792033] Kernel Offset: disabled [ 369.795652] Rebooting in 86400 seconds..