[   54.293631][   T26] audit: type=1800 audit(1567039561.851:25): pid=8473 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0
[   54.338427][   T26] audit: type=1800 audit(1567039561.851:26): pid=8473 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0
[   54.382445][   T26] audit: type=1800 audit(1567039561.851:27): pid=8473 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0
[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c.
[   54.756900][ T8536] sshd (8536) used greatest stack depth: 23480 bytes left
[....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c.

Debian GNU/Linux 7 syzkaller ttyS0

Warning: Permanently added '10.128.0.204' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   65.090943][ T8628] IPVS: ftp: loaded support on port[0] = 21
[   65.121513][   T22] rxrpc: Assertion failed
[   65.126263][   T22] ------------[ cut here ]------------
[   65.131710][   T22] kernel BUG at net/rxrpc/local_object.c:433!
[   65.138198][   T22] invalid opcode: 0000 [#1] PREEMPT SMP KASAN
[   65.144279][   T22] CPU: 1 PID: 22 Comm: kworker/1:1 Not tainted 5.3.0-rc5+ #151
[   65.151793][   T22] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   65.161832][   T22] Workqueue: krxrpcd rxrpc_local_processor
[   65.167618][   T22] RIP: 0010:rxrpc_local_processor.cold+0x24/0x29
[   65.173919][   T22] Code: 5f 0d bf fa 0f 0b e8 84 6c d5 fa 48 c7 c7 e0 76 5a 88 e8 4c 0d bf fa 0f 0b e8 71 6c d5 fa 48 c7 c7 e0 76 5a 88 e8 39 0d bf fa <0f> 0b 90 90 90 55 48 89 e5 41 57 49 89 ff 41 56 41 55 41 54 53 48
[   65.193504][   T22] RSP: 0018:ffff8880a9a4fce8 EFLAGS: 00010282
[   65.199546][   T22] RAX: 0000000000000017 RBX: ffff8880a89e9b38 RCX: 0000000000000000
[   65.207490][   T22] RDX: 0000000000000000 RSI: ffffffff815c2456 RDI: ffffed1015349f8f
[   65.215435][   T22] RBP: ffff8880a9a4fd30 R08: 0000000000000017 R09: ffffed1015d260d1
[   65.223380][   T22] R10: ffffed1015d260d0 R11: ffff8880ae930687 R12: ffff8880a89e93c8
[   65.231325][   T22] R13: ffff88808b9386c8 R14: ffff8880a89e9b00 R15: ffff888089815000
[   65.239276][   T22] FS:  0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
[   65.248176][   T22] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   65.254757][   T22] CR2: 0000000020000080 CR3: 00000000a17d2000 CR4: 00000000001406e0
[   65.262722][   T22] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   65.270677][   T22] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   65.278621][   T22] Call Trace:
[   65.281897][   T22]  process_one_work+0x9af/0x1740
[   65.286812][   T22]  ? pwq_dec_nr_in_flight+0x320/0x320
[   65.292156][   T22]  ? lock_acquire+0x190/0x410
[   65.296806][   T22]  worker_thread+0x98/0xe40
[   65.301281][   T22]  ? trace_hardirqs_on+0x67/0x240
[   65.306311][   T22]  kthread+0x361/0x430
[   65.310356][   T22]  ? process_one_work+0x1740/0x1740
[   65.315530][   T22]  ? kthread_cancel_delayed_work_sync+0x20/0x20
[   65.321749][   T22]  ret_from_fork+0x24/0x30
[   65.326143][   T22] Modules linked in:
[   65.330248][   T22] ---[ end trace c740d0ec781e4ec9 ]---
[   65.335716][   T22] RIP: 0010:rxrpc_local_processor.cold+0x24/0x29
[   65.342205][   T22] Code: 5f 0d bf fa 0f 0b e8 84 6c d5 fa 48 c7 c7 e0 76 5a 88 e8 4c 0d bf fa 0f 0b e8 71 6c d5 fa 48 c7 c7 e0 76 5a 88 e8 39 0d bf fa <0f> 0b 90 90 90 55 48 89 e5 41 57 49 89 ff 41 56 41 55 41 54 53 48
[   65.361862][   T22] RSP: 0018:ffff8880a9a4fce8 EFLAGS: 00010282
[   65.367914][   T22] RAX: 0000000000000017 RBX: ffff8880a89e9b38 RCX: 0000000000000000
[   65.375899][   T22] RDX: 0000000000000000 RSI: ffffffff815c2456 RDI: ffffed1015349f8f
[   65.383885][   T22] RBP: ffff8880a9a4fd30 R08: 0000000000000017 R09: ffffed1015d260d1
[   65.391863][   T22] R10: ffffed1015d260d0 R11: ffff8880ae930687 R12: ffff8880a89e93c8
[   65.399845][   T22] R13: ffff88808b9386c8 R14: ffff8880a89e9b00 R15: ffff888089815000
[   65.407810][   T22] FS:  0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
[   65.416756][   T22] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   65.423353][   T22] CR2: 0000000020000080 CR3: 00000000a17d2000 CR4: 00000000001406e0
[   65.431346][   T22] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   65.439330][   T22] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   65.447277][   T22] Kernel panic - not syncing: Fatal exception
[   65.454356][   T22] Kernel Offset: disabled
[   65.458675][   T22] Rebooting in 86400 seconds..