[ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.31' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 576.962593] JFS: discard option not supported on device executing program executing program [ 577.056087] JFS: discard option not supported on device executing program executing program executing program [ 577.153090] JFS: discard option not supported on device executing program [ 577.227711] JFS: discard option not supported on device [ 577.294372] JFS: discard option not supported on device executing program executing program [ 577.372676] JFS: discard option not supported on device executing program [ 577.444106] JFS: discard option not supported on device executing program [ 577.505158] JFS: discard option not supported on device executing program [ 577.580064] JFS: discard option not supported on device executing program [ 577.633568] JFS: discard option not supported on device executing program [ 577.712572] JFS: discard option not supported on device executing program [ 577.789819] JFS: discard option not supported on device [ 577.862667] JFS: discard option not supported on device executing program executing program [ 577.942225] JFS: discard option not supported on device executing program [ 578.003036] JFS: discard option not supported on device executing program [ 578.055273] JFS: discard option not supported on device executing program [ 578.113792] JFS: discard option not supported on device executing program [ 578.173684] JFS: discard option not supported on device executing program [ 578.236993] JFS: discard option not supported on device executing program [ 578.295430] JFS: discard option not supported on device executing program [ 578.354006] JFS: discard option not supported on device executing program [ 578.428687] JFS: discard option not supported on device executing program [ 578.502850] JFS: discard option not supported on device executing program executing program executing program [ 578.597222] JFS: discard option not supported on device [ 578.634569] JFS: discard option not supported on device executing program [ 578.695117] JFS: discard option not supported on device executing program [ 578.756670] JFS: discard option not supported on device executing program [ 578.823098] JFS: discard option not supported on device executing program [ 578.892331] JFS: discard option not supported on device executing program executing program [ 578.977629] JFS: discard option not supported on device executing program [ 579.037790] JFS: discard option not supported on device executing program [ 579.115671] JFS: discard option not supported on device executing program [ 579.173986] JFS: discard option not supported on device executing program [ 579.234371] JFS: discard option not supported on device executing program [ 579.295412] JFS: discard option not supported on device executing program [ 579.353218] JFS: discard option not supported on device executing program [ 579.403069] JFS: discard option not supported on device [ 579.443341] JFS: discard option not supported on device executing program executing program [ 579.536721] JFS: discard option not supported on device executing program [ 579.606959] JFS: discard option not supported on device [ 579.666049] JFS: discard option not supported on device executing program [ 579.738198] JFS: discard option not supported on device executing program executing program [ 579.823683] JFS: discard option not supported on device executing program [ 579.883055] JFS: discard option not supported on device executing program [ 579.933369] JFS: discard option not supported on device [ 580.002871] JFS: discard option not supported on device executing program executing program [ 580.101198] JFS: discard option not supported on device executing program executing program [ 580.183848] JFS: discard option not supported on device executing program [ 580.264447] JFS: discard option not supported on device executing program [ 580.340444] JFS: discard option not supported on device executing program executing program [ 580.423637] JFS: discard option not supported on device executing program [ 580.483883] JFS: discard option not supported on device executing program [ 580.533326] JFS: discard option not supported on device [ 580.583142] JFS: discard option not supported on device executing program [ 580.656556] JFS: discard option not supported on device executing program [ 580.744557] JFS: discard option not supported on device executing program [ 580.830120] JFS: discard option not supported on device [ 580.851975] kasan: CONFIG_KASAN_INLINE enabled [ 580.856699] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 580.875700] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 580.881947] CPU: 1 PID: 8123 Comm: syz-executor483 Not tainted 4.19.211-syzkaller #0 [ 580.889812] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 580.899156] RIP: 0010:lbmStartIO+0x12b/0x480 [ 580.903548] 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 [ 580.922422] RSP: 0018:ffff88809dabfa70 EFLAGS: 00010202 [ 580.927761] RAX: dffffc0000000000 RBX: ffff8880a9ad4900 RCX: 0000000000000003 [ 580.935005] RDX: 000000000000001c RSI: ffffffff835f37ea RDI: 00000000000000e0 [ 580.942249] RBP: ffff88809bad7e80 R08: 0000000000000001 R09: 0000000000000000 [ 580.949491] R10: 0000000000000005 R11: 0000000000000000 R12: ffff888094e70040 [ 580.956734] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002 [ 580.963982] FS: 0000555557103300(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 580.972181] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 580.978038] CR2: 0000561c766464e7 CR3: 00000000b4926000 CR4: 00000000003406e0 [ 580.985286] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 580.992620] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 580.999861] Call Trace: [ 581.002428] lbmWrite+0x27b/0x3a0 [ 581.005863] lmNextPage.isra.0+0x285/0x740 [ 581.010075] lmWriteRecord+0x94a/0xee0 [ 581.013939] ? mark_held_locks+0xa6/0xf0 [ 581.017977] ? _raw_spin_unlock_irqrestore+0x79/0xe0 [ 581.023053] lmLogSync+0x154/0x6e0 [ 581.026573] ? lmWriteRecord+0xee0/0xee0 [ 581.030620] ? dqput+0x30/0x30 [ 581.033787] jfs_syncpt+0x78/0x90 [ 581.037216] jfs_sync_fs+0x80/0xa0 [ 581.040732] ? jfs_statfs+0x5a0/0x5a0 [ 581.044510] sync_filesystem+0x105/0x250 [ 581.048552] generic_shutdown_super+0x70/0x370 [ 581.053117] kill_block_super+0x97/0xf0 [ 581.057069] deactivate_locked_super+0x94/0x160 [ 581.061718] deactivate_super+0x174/0x1a0 [ 581.065842] ? deactivate_locked_super+0x160/0x160 [ 581.070755] ? dput+0x31/0x640 [ 581.073925] cleanup_mnt+0x1a8/0x290 [ 581.077627] task_work_run+0x148/0x1c0 [ 581.081491] exit_to_usermode_loop+0x251/0x2a0 [ 581.086049] do_syscall_64+0x538/0x620 [ 581.089916] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 581.095081] RIP: 0033:0x7fb402f08857 [ 581.098771] 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 [ 581.117649] RSP: 002b:00007ffffef5d218 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 581.125329] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fb402f08857 [ 581.132574] RDX: 00007ffffef5d2da RSI: 000000000000000a RDI: 00007ffffef5d2d0 [ 581.139818] RBP: 00007ffffef5d2d0 R08: 00000000ffffffff R09: 00007ffffef5d0b0 [ 581.147065] R10: 0000555557104683 R11: 0000000000000206 R12: 00007ffffef5e340 [ 581.154309] R13: 00005555571045f0 R14: 00007ffffef5d240 R15: 000000000000003f [ 581.161559] Modules linked in: [ 581.166499] ---[ end trace 28ed32c00017bc98 ]--- [ 581.172931] RIP: 0010:lbmStartIO+0x12b/0x480 [ 581.177341] 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 [ 581.196512] RSP: 0018:ffff88809dabfa70 EFLAGS: 00010202 [ 581.201950] RAX: dffffc0000000000 RBX: ffff8880a9ad4900 RCX: 0000000000000003 [ 581.209214] RDX: 000000000000001c RSI: ffffffff835f37ea RDI: 00000000000000e0 [ 581.216517] RBP: ffff88809bad7e80 R08: 0000000000000001 R09: 0000000000000000 [ 581.223834] R10: 0000000000000005 R11: 0000000000000000 R12: ffff888094e70040 [ 581.231130] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002 [ 581.238391] FS: 0000555557103300(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 581.246671] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 581.252580] CR2: 0000561c765f3160 CR3: 00000000b4926000 CR4: 00000000003406f0 [ 581.259837] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 581.267127] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 581.274428] Kernel panic - not syncing: Fatal exception [ 581.279937] Kernel Offset: disabled [ 581.283544] Rebooting in 86400 seconds..