[ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Serial Getty on ttyS0. [ OK ] Reached target Login Prompts. [ OK ] Started OpenBSD Secure Shell server. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.84' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 181.399056] ====================================================== [ 181.399056] WARNING: the mand mount option is being deprecated and [ 181.399056] will be removed in v5.15! [ 181.399056] ====================================================== [ 181.423520] JFS: discard option not supported on device executing program executing program [ 181.588547] JFS: discard option not supported on device executing program [ 181.698592] JFS: discard option not supported on device executing program [ 181.805555] JFS: discard option not supported on device [ 181.917060] JFS: discard option not supported on device executing program executing program [ 182.082905] JFS: discard option not supported on device [ 182.197389] JFS: discard option not supported on device executing program executing program [ 182.346644] JFS: discard option not supported on device executing program [ 182.460803] JFS: discard option not supported on device [ 182.600085] JFS: discard option not supported on device executing program executing program [ 182.755235] JFS: discard option not supported on device [ 182.856819] JFS: discard option not supported on device executing program executing program [ 183.031358] JFS: discard option not supported on device [ 183.141247] JFS: discard option not supported on device executing program executing program [ 183.309780] JFS: discard option not supported on device [ 183.420934] JFS: discard option not supported on device executing program [ 183.566326] JFS: discard option not supported on device executing program executing program [ 183.735695] JFS: discard option not supported on device [ 183.835618] JFS: discard option not supported on device executing program executing program [ 184.000809] JFS: discard option not supported on device executing program [ 184.109976] JFS: discard option not supported on device executing program [ 184.215895] JFS: discard option not supported on device [ 184.331067] JFS: discard option not supported on device executing program executing program [ 184.475865] JFS: discard option not supported on device executing program [ 184.588979] JFS: discard option not supported on device executing program [ 184.701263] JFS: discard option not supported on device [ 184.811609] JFS: discard option not supported on device executing program executing program [ 184.976868] JFS: discard option not supported on device [ 185.088581] JFS: discard option not supported on device executing program [ 185.246300] JFS: discard option not supported on device executing program executing program [ 185.406081] JFS: discard option not supported on device [ 185.518329] JFS: discard option not supported on device executing program [ 185.665765] JFS: discard option not supported on device executing program executing program [ 185.834474] JFS: discard option not supported on device [ 185.931361] JFS: discard option not supported on device executing program [ 186.090825] JFS: discard option not supported on device executing program executing program [ 186.246796] JFS: discard option not supported on device executing program [ 186.356307] JFS: discard option not supported on device executing program [ 186.470651] JFS: discard option not supported on device [ 186.581449] JFS: discard option not supported on device executing program [ 186.746075] JFS: discard option not supported on device executing program [ 186.914541] JFS: discard option not supported on device executing program [ 187.087629] JFS: discard option not supported on device executing program executing program [ 187.246533] JFS: discard option not supported on device executing program [ 187.383059] JFS: discard option not supported on device executing program [ 187.497248] JFS: discard option not supported on device executing program [ 187.604222] JFS: discard option not supported on device [ 187.716653] JFS: discard option not supported on device executing program executing program [ 187.880617] JFS: discard option not supported on device executing program [ 187.989724] JFS: discard option not supported on device executing program [ 188.100177] JFS: discard option not supported on device executing program [ 188.205195] JFS: discard option not supported on device [ 188.306670] JFS: discard option not supported on device executing program [ 188.462363] JFS: discard option not supported on device executing program executing program [ 188.625015] JFS: discard option not supported on device executing program [ 188.728535] JFS: discard option not supported on device [ 188.828588] JFS: discard option not supported on device [ 188.840921] kasan: CONFIG_KASAN_INLINE enabled [ 188.845889] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 188.853270] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 188.859511] CPU: 0 PID: 8095 Comm: syz-executor346 Not tainted 4.19.211-syzkaller #0 [ 188.867384] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 188.876729] RIP: 0010:lbmStartIO+0x12b/0x480 [ 188.881119] 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 [ 188.900013] RSP: 0018:ffff8880950cfa70 EFLAGS: 00010202 [ 188.905356] RAX: dffffc0000000000 RBX: ffff8880a8deb700 RCX: 0000000000000003 [ 188.912607] RDX: 000000000000001c RSI: ffffffff835f37ea RDI: 00000000000000e0 [ 188.919862] RBP: ffff8880b4a32b80 R08: 0000000000000001 R09: 0000000000000000 [ 188.927109] R10: 0000000000000005 R11: 0000000000000000 R12: ffff8880b2649680 [ 188.934357] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002 [ 188.941610] FS: 0000555556074300(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 188.949845] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 188.955854] CR2: 000055555607d628 CR3: 00000000a3258000 CR4: 00000000003406f0 [ 188.963105] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 188.970352] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 188.977599] Call Trace: [ 188.980198] lbmWrite+0x27b/0x3a0 [ 188.983632] lmNextPage.isra.0+0x285/0x740 [ 188.987845] lmWriteRecord+0x94a/0xee0 [ 188.991713] ? mark_held_locks+0xa6/0xf0 [ 188.995762] ? _raw_spin_unlock_irqrestore+0x79/0xe0 [ 189.000926] lmLogSync+0x154/0x6e0 [ 189.004445] ? lmWriteRecord+0xee0/0xee0 [ 189.008499] ? dqput+0x30/0x30 [ 189.011672] jfs_syncpt+0x78/0x90 [ 189.015105] jfs_sync_fs+0x80/0xa0 [ 189.018632] ? jfs_statfs+0x5a0/0x5a0 [ 189.022424] sync_filesystem+0x105/0x250 [ 189.026470] generic_shutdown_super+0x70/0x370 [ 189.031377] kill_block_super+0x97/0xf0 [ 189.035331] deactivate_locked_super+0x94/0x160 [ 189.039979] deactivate_super+0x174/0x1a0 [ 189.044110] ? deactivate_locked_super+0x160/0x160 [ 189.049045] ? dput+0x31/0x640 [ 189.052246] cleanup_mnt+0x1a8/0x290 [ 189.055939] task_work_run+0x148/0x1c0 [ 189.059810] exit_to_usermode_loop+0x251/0x2a0 [ 189.064372] do_syscall_64+0x538/0x620 [ 189.068241] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 189.073410] RIP: 0033:0x7f185bce2cd7 [ 189.077121] 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 [ 189.095999] RSP: 002b:00007ffc2d6428a8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 189.103681] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f185bce2cd7 [ 189.111016] RDX: 00007ffc2d64296a RSI: 000000000000000a RDI: 00007ffc2d642960 [ 189.118262] RBP: 00007ffc2d642960 R08: 00000000ffffffff R09: 00007ffc2d642740 [ 189.125539] R10: 0000555556075683 R11: 0000000000000202 R12: 00007ffc2d6439d0 [ 189.132791] R13: 00005555560755f0 R14: 00007ffc2d6428d0 R15: 0000000000000039 [ 189.140046] Modules linked in: [ 189.144337] ---[ end trace 8eb6570428befbff ]--- [ 189.149203] RIP: 0010:lbmStartIO+0x12b/0x480 [ 189.153726] 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 [ 189.173271] RSP: 0018:ffff8880950cfa70 EFLAGS: 00010202 [ 189.178680] RAX: dffffc0000000000 RBX: ffff8880a8deb700 RCX: 0000000000000003 [ 189.186802] RDX: 000000000000001c RSI: ffffffff835f37ea RDI: 00000000000000e0 [ 189.194062] RBP: ffff8880b4a32b80 R08: 0000000000000001 R09: 0000000000000000 [ 189.201365] R10: 0000000000000005 R11: 0000000000000000 R12: ffff8880b2649680 [ 189.208690] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002 [ 189.216032] FS: 0000555556074300(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 189.224378] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 189.230252] CR2: 0000557c98552160 CR3: 00000000a3258000 CR4: 00000000003406e0 [ 189.237575] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 189.244902] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 189.252262] Kernel panic - not syncing: Fatal exception [ 189.257775] Kernel Offset: disabled [ 189.261385] Rebooting in 86400 seconds..