[ 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 '10.128.10.59' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 305.298025] JFS: discard option not supported on device executing program [ 305.388955] JFS: discard option not supported on device executing program [ 305.467480] JFS: discard option not supported on device executing program executing program [ 305.545978] JFS: discard option not supported on device executing program [ 305.608667] JFS: discard option not supported on device executing program [ 305.696435] JFS: discard option not supported on device executing program [ 305.786207] JFS: discard option not supported on device executing program executing program [ 305.885813] JFS: discard option not supported on device executing program [ 305.963333] JFS: discard option not supported on device executing program [ 306.038976] JFS: discard option not supported on device executing program [ 306.107080] JFS: discard option not supported on device executing program [ 306.165974] JFS: discard option not supported on device executing program [ 306.260697] JFS: discard option not supported on device executing program executing program [ 306.347330] JFS: discard option not supported on device [ 306.410913] JFS: discard option not supported on device executing program executing program executing program [ 306.497201] JFS: discard option not supported on device [ 306.537156] JFS: discard option not supported on device executing program [ 306.589812] JFS: discard option not supported on device executing program [ 306.647895] JFS: discard option not supported on device [ 306.707260] JFS: discard option not supported on device executing program [ 306.788739] JFS: discard option not supported on device executing program executing program [ 306.865883] JFS: discard option not supported on device executing program [ 306.937596] JFS: discard option not supported on device executing program [ 306.997712] JFS: discard option not supported on device executing program [ 307.066923] JFS: discard option not supported on device executing program [ 307.107507] JFS: discard option not supported on device [ 307.166565] JFS: discard option not supported on device executing program executing program [ 307.228207] JFS: discard option not supported on device executing program [ 307.287255] JFS: discard option not supported on device executing program [ 307.348873] JFS: discard option not supported on device [ 307.412417] JFS: discard option not supported on device executing program executing program [ 307.503162] JFS: discard option not supported on device [ 307.575925] JFS: discard option not supported on device executing program executing program [ 307.660459] JFS: discard option not supported on device executing program [ 307.728766] JFS: discard option not supported on device executing program [ 307.787313] JFS: discard option not supported on device executing program [ 307.846947] JFS: discard option not supported on device executing program executing program [ 307.939560] JFS: discard option not supported on device executing program [ 307.987042] JFS: discard option not supported on device executing program [ 308.047456] JFS: discard option not supported on device executing program [ 308.107911] JFS: discard option not supported on device executing program [ 308.167178] JFS: discard option not supported on device executing program [ 308.227257] JFS: discard option not supported on device [ 308.299527] JFS: discard option not supported on device executing program executing program [ 308.377336] JFS: discard option not supported on device [ 308.426912] JFS: discard option not supported on device executing program executing program [ 308.508415] JFS: discard option not supported on device [ 308.557148] JFS: discard option not supported on device executing program executing program [ 308.647492] JFS: discard option not supported on device [ 308.696839] JFS: discard option not supported on device executing program executing program [ 308.766125] JFS: discard option not supported on device executing program [ 308.826607] JFS: discard option not supported on device executing program [ 308.887671] JFS: discard option not supported on device [ 308.955913] JFS: discard option not supported on device executing program executing program [ 309.047360] JFS: discard option not supported on device [ 309.109332] JFS: discard option not supported on device executing program [ 309.185820] JFS: discard option not supported on device [ 309.198499] kasan: CONFIG_KASAN_INLINE enabled [ 309.203251] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 309.212398] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 309.218659] CPU: 1 PID: 8104 Comm: syz-executor217 Not tainted 4.19.211-syzkaller #0 [ 309.226538] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 309.235898] RIP: 0010:lbmStartIO+0x12b/0x480 [ 309.240290] 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 [ 309.259177] RSP: 0018:ffff88809623fa70 EFLAGS: 00010202 [ 309.264524] RAX: dffffc0000000000 RBX: ffff8880a9b87900 RCX: 0000000000000003 [ 309.271782] RDX: 000000000000001c RSI: ffffffff835f37ea RDI: 00000000000000e0 [ 309.279051] RBP: ffff88809a060480 R08: 0000000000000001 R09: 0000000000000000 [ 309.286302] R10: 0000000000000005 R11: 0000000000000000 R12: ffff8880953bdb40 [ 309.293566] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002 [ 309.300826] FS: 0000555556f17300(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 309.309119] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 309.314981] CR2: 00007ffe60d44c08 CR3: 00000000aa44e000 CR4: 00000000003406e0 [ 309.322238] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 309.329491] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 309.336737] Call Trace: [ 309.339310] lbmWrite+0x27b/0x3a0 [ 309.342746] lmNextPage.isra.0+0x285/0x740 [ 309.346964] lmWriteRecord+0x94a/0xee0 [ 309.350850] ? mark_held_locks+0xa6/0xf0 [ 309.354895] ? _raw_spin_unlock_irqrestore+0x79/0xe0 [ 309.359984] lmLogSync+0x154/0x6e0 [ 309.363520] ? lmWriteRecord+0xee0/0xee0 [ 309.367906] ? dqput+0x30/0x30 [ 309.371100] jfs_syncpt+0x78/0x90 [ 309.374542] jfs_sync_fs+0x80/0xa0 [ 309.378103] ? jfs_statfs+0x5a0/0x5a0 [ 309.381886] sync_filesystem+0x105/0x250 [ 309.385935] generic_shutdown_super+0x70/0x370 [ 309.390498] kill_block_super+0x97/0xf0 [ 309.394458] deactivate_locked_super+0x94/0x160 [ 309.399108] deactivate_super+0x174/0x1a0 [ 309.403242] ? deactivate_locked_super+0x160/0x160 [ 309.408157] ? dput+0x31/0x640 [ 309.411336] cleanup_mnt+0x1a8/0x290 [ 309.415039] task_work_run+0x148/0x1c0 [ 309.418916] exit_to_usermode_loop+0x251/0x2a0 [ 309.423491] do_syscall_64+0x538/0x620 [ 309.427366] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 309.432540] RIP: 0033:0x7f08136747b7 [ 309.436236] 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 [ 309.455133] RSP: 002b:00007ffe60d45348 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 309.462825] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f08136747b7 [ 309.470078] RDX: 00007ffe60d4540a RSI: 000000000000000a RDI: 00007ffe60d45400 [ 309.477331] RBP: 00007ffe60d45400 R08: 00000000ffffffff R09: 00007ffe60d451e0 [ 309.484594] R10: 0000555556f18683 R11: 0000000000000206 R12: 00007ffe60d46470 [ 309.491849] R13: 0000555556f185f0 R14: 00007ffe60d45370 R15: 000000000000003c [ 309.499104] Modules linked in: [ 309.503768] ---[ end trace 9197b4f33d0e5588 ]--- [ 309.508790] RIP: 0010:lbmStartIO+0x12b/0x480 [ 309.513216] 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 [ 309.532298] RSP: 0018:ffff88809623fa70 EFLAGS: 00010202 [ 309.537853] RAX: dffffc0000000000 RBX: ffff8880a9b87900 RCX: 0000000000000003 [ 309.545273] RDX: 000000000000001c RSI: ffffffff835f37ea RDI: 00000000000000e0 [ 309.552536] RBP: ffff88809a060480 R08: 0000000000000001 R09: 0000000000000000 [ 309.559975] R10: 0000000000000005 R11: 0000000000000000 R12: ffff8880953bdb40 [ 309.567505] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002 [ 309.574919] FS: 0000555556f17300(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 309.583140] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 309.589168] CR2: 00007ffe60d44c08 CR3: 00000000aa44e000 CR4: 00000000003406e0 [ 309.596570] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 309.603834] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 309.611241] Kernel panic - not syncing: Fatal exception [ 309.616781] Kernel Offset: disabled [ 309.620397] Rebooting in 86400 seconds..