[ OK ] Started System Logging Service. [ OK ] Started Getty on tty2. [ OK ] Started Serial Getty on ttyS0. [ OK ] Started getty on tty2-tty6 if dbus and logind are not available. [ OK ] Started OpenBSD Secure Shell server. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.232' (ECDSA) to the list of known hosts. syzkaller login: [ 302.629510] IPVS: ftp: loaded support on port[0] = 21 executing program [ 302.724267] BUG: unable to handle kernel paging request at ffffed1018b41204 [ 302.731380] PGD 23fff3067 P4D 23fff3067 PUD 13fff8067 PMD 0 [ 302.737168] Oops: 0000 [#1] PREEMPT SMP KASAN [ 302.741644] CPU: 1 PID: 1984 Comm: jfsCommit Not tainted 4.19.211-syzkaller #0 [ 302.748979] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 302.758321] RIP: 0010:dbAdjTree+0x202/0x2c0 [ 302.762620] Code: 00 41 0f b6 55 01 44 38 f8 4c 63 eb 41 0f 4c c7 4a 8d 7c 2d 11 38 d0 48 89 f9 0f 4d d0 83 e1 07 41 89 d7 48 89 fa 48 c1 ea 03 <42> 0f b6 14 22 38 ca 7f 04 84 d2 75 51 42 0f b6 54 2d 11 44 89 fe [ 302.781497] RSP: 0018:ffff8880b0b4f760 EFLAGS: 00010a02 [ 302.786837] RAX: 0000000000000004 RBX: 0000000015400000 RCX: 0000000000000001 [ 302.794083] RDX: 1ffff11018b41204 RSI: 0000000000000003 RDI: ffff8880c5a09021 [ 302.801329] RBP: ffff8880b0609010 R08: 0000000000000000 R09: 0000000000000000 [ 302.808575] R10: 0000000000000005 R11: 0000000000000000 R12: dffffc0000000000 [ 302.815820] R13: 0000000015400000 R14: 0000000000000000 R15: 0000000000000004 [ 302.823067] FS: 0000000000000000(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 302.831266] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 302.837124] CR2: ffffed1018b41204 CR3: 000000009c16c000 CR4: 00000000003406e0 [ 302.844371] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 302.851617] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 302.858868] Call Trace: [ 302.861440] ? __lock_acquire+0x6de/0x3ff0 [ 302.865657] dbJoin+0x1d0/0x220 [ 302.868915] dbFreeBits+0xf0/0x710 [ 302.872434] dbFreeDmap+0x61/0x1a0 [ 302.875954] dbFree+0x252/0x500 [ 302.879223] txFreeMap+0x60e/0xb20 [ 302.882740] ? _raw_spin_unlock+0x29/0x40 [ 302.886868] xtTruncate+0x1bea/0x25b0 [ 302.890648] ? trace_event_raw_event_lock+0x21d/0x240 [ 302.895819] ? xtInitRoot+0x1c0/0x1c0 [ 302.899604] ? mark_held_locks+0xf0/0xf0 [ 302.903646] ? locked_inode_to_wb_and_lock_list+0x1d9/0x980 [ 302.909332] ? mark_held_locks+0xf0/0xf0 [ 302.913371] ? mark_held_locks+0xf0/0xf0 [ 302.917409] ? __mark_inode_dirty+0xc2a/0x1140 [ 302.921971] ? lock_downgrade+0x720/0x720 [ 302.926098] ? __dquot_initialize+0x298/0xb70 [ 302.930572] ? __inode_wait_for_writeback+0x184/0x1f0 [ 302.935739] jfs_free_zero_link+0x2ea/0x440 [ 302.940037] ? jfs_create+0x60/0x60 [ 302.943639] ? lock_downgrade+0x720/0x720 [ 302.947768] jfs_evict_inode+0x1d2/0x210 [ 302.951805] ? jfs_write_inode+0x1d0/0x1d0 [ 302.956015] evict+0x2ed/0x760 [ 302.959186] iput+0x4f1/0x860 [ 302.962269] txUpdateMap+0xd88/0x1000 [ 302.966049] ? lock_downgrade+0x5b0/0x720 [ 302.970179] jfs_lazycommit+0x525/0x9d0 [ 302.974130] ? txCommit+0x39e0/0x39e0 [ 302.977909] ? lock_acquire+0x170/0x3c0 [ 302.981864] ? __kthread_parkme+0x5d/0x1e0 [ 302.986077] ? wake_up_q+0xe0/0xe0 [ 302.989592] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 302.994154] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 302.999234] ? __kthread_parkme+0x133/0x1e0 [ 303.003534] ? txCommit+0x39e0/0x39e0 [ 303.007311] kthread+0x33f/0x460 [ 303.010672] ? kthread_park+0x180/0x180 [ 303.014622] ret_from_fork+0x24/0x30 [ 303.018310] Modules linked in: [ 303.021477] CR2: ffffed1018b41204 [ 303.024911] ---[ end trace 33de24460b35a9ee ]--- [ 303.029645] RIP: 0010:dbAdjTree+0x202/0x2c0 [ 303.033944] Code: 00 41 0f b6 55 01 44 38 f8 4c 63 eb 41 0f 4c c7 4a 8d 7c 2d 11 38 d0 48 89 f9 0f 4d d0 83 e1 07 41 89 d7 48 89 fa 48 c1 ea 03 <42> 0f b6 14 22 38 ca 7f 04 84 d2 75 51 42 0f b6 54 2d 11 44 89 fe [ 303.052823] RSP: 0018:ffff8880b0b4f760 EFLAGS: 00010a02 [ 303.058172] RAX: 0000000000000004 RBX: 0000000015400000 RCX: 0000000000000001 [ 303.065417] RDX: 1ffff11018b41204 RSI: 0000000000000003 RDI: ffff8880c5a09021 [ 303.072663] RBP: ffff8880b0609010 R08: 0000000000000000 R09: 0000000000000000 [ 303.079907] R10: 0000000000000005 R11: 0000000000000000 R12: dffffc0000000000 [ 303.087152] R13: 0000000015400000 R14: 0000000000000000 R15: 0000000000000004 [ 303.094401] FS: 0000000000000000(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 303.102603] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 303.108461] CR2: ffffed1018b41204 CR3: 000000009c16c000 CR4: 00000000003406e0 [ 303.115709] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 303.122955] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 303.130203] Kernel panic - not syncing: Fatal exception [ 303.135707] Kernel Offset: disabled [ 303.139316] Rebooting in 86400 seconds..