[ OK ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch. [ 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 '10.128.1.97' (ECDSA) to the list of known hosts. executing program executing program syzkaller login: [ 301.707959] JFS: discard option not supported on device executing program [ 301.753765] JFS: discard option not supported on device executing program [ 301.822209] JFS: discard option not supported on device executing program [ 301.890977] JFS: discard option not supported on device executing program [ 301.951333] JFS: discard option not supported on device executing program [ 302.011322] JFS: discard option not supported on device [ 302.071872] JFS: discard option not supported on device executing program executing program executing program [ 302.152737] JFS: discard option not supported on device executing program [ 302.217723] JFS: discard option not supported on device [ 302.287595] JFS: discard option not supported on device executing program [ 302.366632] JFS: discard option not supported on device executing program executing program [ 302.456415] JFS: discard option not supported on device executing program [ 302.525371] JFS: discard option not supported on device executing program executing program [ 302.581752] JFS: discard option not supported on device executing program [ 302.641417] JFS: discard option not supported on device executing program [ 302.702953] JFS: discard option not supported on device [ 302.761648] JFS: discard option not supported on device executing program executing program [ 302.844860] JFS: discard option not supported on device executing program executing program [ 302.942125] JFS: discard option not supported on device executing program [ 302.997387] JFS: discard option not supported on device [ 303.072729] JFS: discard option not supported on device executing program executing program [ 303.157723] JFS: discard option not supported on device executing program [ 303.221522] JFS: discard option not supported on device [ 303.271392] JFS: discard option not supported on device executing program [ 303.351682] JFS: discard option not supported on device executing program [ 303.442227] JFS: discard option not supported on device executing program executing program [ 303.528872] JFS: discard option not supported on device executing program [ 303.597369] JFS: discard option not supported on device executing program [ 303.641057] JFS: discard option not supported on device executing program [ 303.702211] JFS: discard option not supported on device [ 303.760921] JFS: discard option not supported on device executing program [ 303.850198] JFS: discard option not supported on device executing program executing program [ 303.929571] JFS: discard option not supported on device executing program [ 303.988269] JFS: discard option not supported on device executing program [ 304.061998] JFS: discard option not supported on device executing program [ 304.121694] JFS: discard option not supported on device executing program [ 304.181277] JFS: discard option not supported on device executing program [ 304.245418] JFS: discard option not supported on device executing program [ 304.312140] JFS: discard option not supported on device executing program [ 304.383251] JFS: discard option not supported on device executing program [ 304.450787] JFS: discard option not supported on device executing program [ 304.511303] JFS: discard option not supported on device executing program [ 304.561556] JFS: discard option not supported on device executing program [ 304.630369] JFS: discard option not supported on device executing program [ 304.703062] JFS: discard option not supported on device executing program [ 304.761078] JFS: discard option not supported on device executing program [ 304.820954] JFS: discard option not supported on device executing program [ 304.890783] JFS: discard option not supported on device executing program executing program [ 304.981399] JFS: discard option not supported on device executing program [ 305.031264] JFS: discard option not supported on device executing program [ 305.091373] JFS: discard option not supported on device executing program [ 305.151552] JFS: discard option not supported on device executing program [ 305.210694] JFS: discard option not supported on device executing program [ 305.261101] JFS: discard option not supported on device executing program [ 305.322345] JFS: discard option not supported on device executing program [ 305.390662] JFS: discard option not supported on device [ 305.441387] JFS: discard option not supported on device [ 305.461361] kasan: CONFIG_KASAN_INLINE enabled [ 305.466210] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 305.483624] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 305.489872] CPU: 1 PID: 8111 Comm: syz-executor305 Not tainted 4.19.211-syzkaller #0 [ 305.497750] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 305.507118] RIP: 0010:lbmStartIO+0x12b/0x480 [ 305.511530] 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 [ 305.530428] RSP: 0018:ffff88809ab87a70 EFLAGS: 00010202 [ 305.535786] RAX: dffffc0000000000 RBX: ffff8880a9af1700 RCX: 0000000000000003 [ 305.543121] RDX: 000000000000001c RSI: ffffffff835f37ea RDI: 00000000000000e0 [ 305.550366] RBP: ffff88809d8606c0 R08: 0000000000000001 R09: 0000000000000000 [ 305.557613] R10: 0000000000000005 R11: 0000000000000000 R12: ffff8880aeebb6c0 [ 305.564886] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002 [ 305.572136] FS: 0000555557022300(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 305.580363] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 305.586220] CR2: 00007fe72725d000 CR3: 00000000b508d000 CR4: 00000000003406e0 [ 305.593471] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 305.600718] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 305.607964] Call Trace: [ 305.610585] lbmWrite+0x27b/0x3a0 [ 305.614032] lmNextPage.isra.0+0x285/0x740 [ 305.618250] lmWriteRecord+0x94a/0xee0 [ 305.622125] ? mark_held_locks+0xa6/0xf0 [ 305.626175] ? _raw_spin_unlock_irqrestore+0x79/0xe0 [ 305.631261] lmLogSync+0x154/0x6e0 [ 305.634780] ? lmWriteRecord+0xee0/0xee0 [ 305.638824] ? dqput+0x30/0x30 [ 305.641998] jfs_syncpt+0x78/0x90 [ 305.645440] jfs_sync_fs+0x80/0xa0 [ 305.648960] ? jfs_statfs+0x5a0/0x5a0 [ 305.652738] sync_filesystem+0x105/0x250 [ 305.656777] generic_shutdown_super+0x70/0x370 [ 305.661347] kill_block_super+0x97/0xf0 [ 305.665299] deactivate_locked_super+0x94/0x160 [ 305.669949] deactivate_super+0x174/0x1a0 [ 305.674074] ? deactivate_locked_super+0x160/0x160 [ 305.678982] ? dput+0x31/0x640 [ 305.682156] cleanup_mnt+0x1a8/0x290 [ 305.685849] task_work_run+0x148/0x1c0 [ 305.689721] exit_to_usermode_loop+0x251/0x2a0 [ 305.694278] do_syscall_64+0x538/0x620 [ 305.698143] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 305.703307] RIP: 0033:0x7fbcedc50847 [ 305.706997] 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 [ 305.725932] RSP: 002b:00007ffed82ac148 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 305.733617] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fbcedc50847 [ 305.740867] RDX: 00007ffed82ac20a RSI: 000000000000000a RDI: 00007ffed82ac200 [ 305.748112] RBP: 00007ffed82ac200 R08: 00000000ffffffff R09: 00007ffed82abfe0 [ 305.755358] R10: 0000555557023683 R11: 0000000000000206 R12: 00007ffed82ad270 [ 305.762603] R13: 00005555570235f0 R14: 00007ffed82ac170 R15: 000000000000003d [ 305.769855] Modules linked in: [ 305.778536] ---[ end trace 533f406071e0c04d ]--- [ 305.783309] RIP: 0010:lbmStartIO+0x12b/0x480 [ 305.787710] 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 [ 305.807290] RSP: 0018:ffff88809ab87a70 EFLAGS: 00010202 [ 305.812951] RAX: dffffc0000000000 RBX: ffff8880a9af1700 RCX: 0000000000000003 [ 305.820998] RDX: 000000000000001c RSI: ffffffff835f37ea RDI: 00000000000000e0 [ 305.828262] RBP: ffff88809d8606c0 R08: 0000000000000001 R09: 0000000000000000 [ 305.835587] R10: 0000000000000005 R11: 0000000000000000 R12: ffff8880aeebb6c0 [ 305.842906] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002 [ 305.850208] FS: 0000555557022300(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 305.858431] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 305.864373] CR2: 000055e1b60a6160 CR3: 00000000b508d000 CR4: 00000000003406f0 [ 305.871676] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 305.878992] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 305.886245] Kernel panic - not syncing: Fatal exception [ 305.891756] Kernel Offset: disabled [ 305.895365] Rebooting in 86400 seconds..