[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.130' (ECDSA) to the list of known hosts. executing program executing program syzkaller login: [ 379.670901] JFS: discard option not supported on device executing program [ 379.736168] JFS: discard option not supported on device executing program [ 379.790606] JFS: discard option not supported on device executing program [ 379.840767] JFS: discard option not supported on device executing program [ 379.911557] JFS: discard option not supported on device executing program [ 379.981768] JFS: discard option not supported on device executing program [ 380.052930] JFS: discard option not supported on device executing program [ 380.102503] JFS: discard option not supported on device [ 380.150705] JFS: discard option not supported on device executing program executing program [ 380.235613] JFS: discard option not supported on device [ 380.304293] JFS: discard option not supported on device executing program executing program [ 380.382201] JFS: discard option not supported on device executing program [ 380.431278] JFS: discard option not supported on device executing program [ 380.502100] JFS: discard option not supported on device executing program [ 380.560455] JFS: discard option not supported on device executing program executing program [ 380.620636] JFS: discard option not supported on device [ 380.660713] JFS: discard option not supported on device executing program [ 380.730596] JFS: discard option not supported on device [ 380.804391] JFS: discard option not supported on device executing program executing program [ 380.892156] JFS: discard option not supported on device executing program [ 380.990273] JFS: discard option not supported on device executing program executing program [ 381.080182] JFS: discard option not supported on device executing program [ 381.150286] JFS: discard option not supported on device executing program [ 381.203028] JFS: discard option not supported on device [ 381.241159] JFS: discard option not supported on device executing program [ 381.329205] JFS: discard option not supported on device executing program [ 381.410348] JFS: discard option not supported on device executing program [ 381.497327] JFS: discard option not supported on device executing program [ 381.589764] JFS: discard option not supported on device executing program executing program [ 381.671439] JFS: discard option not supported on device executing program executing program executing program [ 381.767609] JFS: discard option not supported on device [ 381.802315] JFS: discard option not supported on device executing program [ 381.860648] JFS: discard option not supported on device executing program [ 381.920634] JFS: discard option not supported on device executing program [ 381.982288] JFS: discard option not supported on device executing program [ 382.031574] JFS: discard option not supported on device executing program [ 382.091030] JFS: discard option not supported on device executing program [ 382.167600] JFS: discard option not supported on device [ 382.218834] JFS: discard option not supported on device executing program executing program [ 382.306982] JFS: discard option not supported on device executing program [ 382.352203] JFS: discard option not supported on device executing program [ 382.404074] JFS: discard option not supported on device executing program [ 382.471875] JFS: discard option not supported on device executing program [ 382.521728] JFS: discard option not supported on device [ 382.573709] JFS: discard option not supported on device executing program executing program [ 382.642326] JFS: discard option not supported on device executing program [ 382.691081] JFS: discard option not supported on device executing program [ 382.769575] JFS: discard option not supported on device executing program [ 382.832188] JFS: discard option not supported on device executing program [ 382.891863] JFS: discard option not supported on device executing program [ 382.940487] JFS: discard option not supported on device executing program [ 383.000702] JFS: discard option not supported on device [ 383.050735] JFS: discard option not supported on device executing program executing program [ 383.132496] JFS: discard option not supported on device executing program [ 383.180613] JFS: discard option not supported on device executing program [ 383.241025] JFS: discard option not supported on device [ 383.301102] JFS: discard option not supported on device [ 383.313282] kasan: CONFIG_KASAN_INLINE enabled [ 383.322340] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 383.330297] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 383.336548] CPU: 0 PID: 8072 Comm: syz-executor212 Not tainted 4.19.211-syzkaller #0 [ 383.344428] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 383.353795] RIP: 0010:lbmStartIO+0x12b/0x480 [ 383.358210] 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 [ 383.377110] RSP: 0018:ffff8880922a7a70 EFLAGS: 00010202 [ 383.382469] RAX: dffffc0000000000 RBX: ffff8880a9435600 RCX: 0000000000000003 [ 383.389720] RDX: 000000000000001c RSI: ffffffff835f37ea RDI: 00000000000000e0 [ 383.396964] RBP: ffff8880b2bd1500 R08: 0000000000000001 R09: 0000000000000000 [ 383.404214] R10: 0000000000000005 R11: 0000000000000000 R12: ffff8880b0cb3200 [ 383.412128] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002 [ 383.419378] FS: 0000555556d6a300(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 383.427593] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 383.433469] CR2: 0000555556d73628 CR3: 00000000a537d000 CR4: 00000000003406f0 [ 383.440812] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 383.448062] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 383.455308] Call Trace: [ 383.457883] lbmWrite+0x27b/0x3a0 [ 383.461328] lmNextPage.isra.0+0x285/0x740 [ 383.465564] lmWriteRecord+0x94a/0xee0 [ 383.469435] ? mark_held_locks+0xa6/0xf0 [ 383.473480] ? _raw_spin_unlock_irqrestore+0x79/0xe0 [ 383.478565] lmLogSync+0x154/0x6e0 [ 383.482108] ? lmWriteRecord+0xee0/0xee0 [ 383.486168] ? dqput+0x30/0x30 [ 383.489364] jfs_syncpt+0x78/0x90 [ 383.492800] jfs_sync_fs+0x80/0xa0 [ 383.496322] ? jfs_statfs+0x5a0/0x5a0 [ 383.500101] sync_filesystem+0x105/0x250 [ 383.504143] generic_shutdown_super+0x70/0x370 [ 383.508708] kill_block_super+0x97/0xf0 [ 383.512664] deactivate_locked_super+0x94/0x160 [ 383.517336] deactivate_super+0x174/0x1a0 [ 383.521465] ? deactivate_locked_super+0x160/0x160 [ 383.526372] ? dput+0x31/0x640 [ 383.529543] cleanup_mnt+0x1a8/0x290 [ 383.533239] task_work_run+0x148/0x1c0 [ 383.537109] exit_to_usermode_loop+0x251/0x2a0 [ 383.541670] do_syscall_64+0x538/0x620 [ 383.545541] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 383.550708] RIP: 0033:0x7f24da8ac817 [ 383.554403] Code: 08 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 [ 383.573301] RSP: 002b:00007ffc8be63ee8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 383.580988] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f24da8ac817 [ 383.588236] RDX: 00007ffc8be63faa RSI: 000000000000000a RDI: 00007ffc8be63fa0 [ 383.595483] RBP: 00007ffc8be63fa0 R08: 00000000ffffffff R09: 00007ffc8be63d80 [ 383.602731] R10: 0000555556d6b683 R11: 0000000000000206 R12: 00007ffc8be65010 [ 383.609978] R13: 0000555556d6b5f0 R14: 00007ffc8be63f10 R15: 000000000000003b [ 383.617229] Modules linked in: [ 383.620784] ---[ end trace 365211ce8dc00764 ]--- [ 383.625552] RIP: 0010:lbmStartIO+0x12b/0x480 [ 383.630213] 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 [ 383.649172] RSP: 0018:ffff8880922a7a70 EFLAGS: 00010202 [ 383.654557] RAX: dffffc0000000000 RBX: ffff8880a9435600 RCX: 0000000000000003 [ 383.662040] RDX: 000000000000001c RSI: ffffffff835f37ea RDI: 00000000000000e0 [ 383.669373] RBP: ffff8880b2bd1500 R08: 0000000000000001 R09: 0000000000000000 [ 383.676634] R10: 0000000000000005 R11: 0000000000000000 R12: ffff8880b0cb3200 [ 383.683943] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002 [ 383.691267] FS: 0000555556d6a300(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 383.699528] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 383.705406] CR2: 0000555556d73628 CR3: 00000000a537d000 CR4: 00000000003406f0 [ 383.712712] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 383.720482] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 383.727744] Kernel panic - not syncing: Fatal exception [ 383.733162] Kernel Offset: disabled [ 383.736773] Rebooting in 86400 seconds..