[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.161' (ECDSA) to the list of known hosts. syzkaller login: [ 36.835966] IPVS: ftp: loaded support on port[0] = 21 executing program [ 37.003658] ERROR: (device loop0): txAbort: [ 37.003658] [ 37.026415] BUG at fs/jfs/jfs_txnmgr.c:939 assert(mp->nohomeok > 0) [ 37.033879] ------------[ cut here ]------------ [ 37.038645] kernel BUG at fs/jfs/jfs_txnmgr.c:939! [ 37.044352] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 37.049810] CPU: 1 PID: 1985 Comm: jfsCommit Not tainted 4.19.211-syzkaller #0 [ 37.057144] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 37.066485] RIP: 0010:txUnlock.cold+0x4a/0x72 [ 37.070957] Code: eb cc fa ff 0f 0b e8 79 9b 69 f9 48 c7 c1 a0 16 9b 88 ba ab 03 00 00 48 c7 c6 20 16 9b 88 48 c7 c7 60 16 9b 88 e8 c5 cc fa ff <0f> 0b e8 53 9b 69 f9 48 c7 c1 e0 15 9b 88 ba a5 03 00 00 48 c7 c6 [ 37.090013] RSP: 0018:ffff8880b0a87d58 EFLAGS: 00010282 [ 37.095363] RAX: 0000000000000037 RBX: ffffc90001602090 RCX: 0000000000000000 [ 37.102612] RDX: 0000000000000000 RSI: ffffffff814dff01 RDI: ffffed1016150f9d [ 37.109860] RBP: ffff8880a23f72d0 R08: 0000000000000037 R09: 0000000000000000 [ 37.117106] R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000000000 [ 37.124354] R13: 0000000000000000 R14: ffffc90001401100 R15: dffffc0000000000 [ 37.131602] FS: 0000000000000000(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 37.139805] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 37.145748] CR2: 000055bedbcc9160 CR3: 00000000a132d000 CR4: 00000000003406e0 [ 37.152998] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 37.160251] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 37.167783] Call Trace: [ 37.170368] jfs_lazycommit+0x66b/0x9d0 [ 37.174323] ? txCommit+0x39e0/0x39e0 [ 37.178107] ? lock_acquire+0x170/0x3c0 [ 37.182068] ? __kthread_parkme+0x5d/0x1e0 [ 37.186383] ? wake_up_q+0xe0/0xe0 [ 37.189911] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 37.194470] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 37.199551] ? __kthread_parkme+0x133/0x1e0 [ 37.203849] ? txCommit+0x39e0/0x39e0 [ 37.207634] kthread+0x33f/0x460 [ 37.210978] ? kthread_park+0x180/0x180 [ 37.214930] ret_from_fork+0x24/0x30 [ 37.218616] Modules linked in: [ 37.224330] ---[ end trace 41146660a9becfbb ]--- [ 37.229123] RIP: 0010:txUnlock.cold+0x4a/0x72 [ 37.233609] Code: eb cc fa ff 0f 0b e8 79 9b 69 f9 48 c7 c1 a0 16 9b 88 ba ab 03 00 00 48 c7 c6 20 16 9b 88 48 c7 c7 60 16 9b 88 e8 c5 cc fa ff <0f> 0b e8 53 9b 69 f9 48 c7 c1 e0 15 9b 88 ba a5 03 00 00 48 c7 c6 [ 37.252792] RSP: 0018:ffff8880b0a87d58 EFLAGS: 00010282 [ 37.258424] RAX: 0000000000000037 RBX: ffffc90001602090 RCX: 0000000000000000 [ 37.265675] RDX: 0000000000000000 RSI: ffffffff814dff01 RDI: ffffed1016150f9d [ 37.273764] RBP: ffff8880a23f72d0 R08: 0000000000000037 R09: 0000000000000000 [ 37.281882] R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000000000 [ 37.289588] R13: 0000000000000000 R14: ffffc90001401100 R15: dffffc0000000000 [ 37.296860] FS: 0000000000000000(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 37.305715] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 37.312084] CR2: 00007ff32ceab000 CR3: 00000000a1511000 CR4: 00000000003406f0 [ 37.319770] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 37.327033] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 37.335109] Kernel panic - not syncing: Fatal exception [ 37.340720] Kernel Offset: disabled [ 37.344435] Rebooting in 86400 seconds..