[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 52.041664][ T27] audit: type=1800 audit(1566153766.191:25): pid=8382 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 52.087042][ T27] audit: type=1800 audit(1566153766.191:26): pid=8382 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 52.124177][ T27] audit: type=1800 audit(1566153766.191:27): pid=8382 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. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.24' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 62.759000][ T8537] IPVS: ftp: loaded support on port[0] = 21 [ 62.789066][ T12] rxrpc: Assertion failed [ 62.793716][ T12] ------------[ cut here ]------------ [ 62.799150][ T12] kernel BUG at net/rxrpc/local_object.c:433! [ 62.806756][ T12] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 62.812820][ T12] CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.3.0-rc4-next-20190816 #67 [ 62.821378][ T12] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.831426][ T12] Workqueue: krxrpcd rxrpc_local_processor [ 62.837209][ T12] RIP: 0010:rxrpc_local_processor.cold+0x24/0x29 [ 62.843504][ T12] Code: df a1 bc fa 0f 0b e8 c4 2b d3 fa 48 c7 c7 e0 24 5b 88 e8 cc a1 bc fa 0f 0b e8 b1 2b d3 fa 48 c7 c7 e0 24 5b 88 e8 b9 a1 bc fa <0f> 0b 90 90 90 55 48 89 e5 41 57 49 89 ff 41 56 41 55 41 54 53 48 [ 62.863077][ T12] RSP: 0018:ffff8880a98d7ce8 EFLAGS: 00010282 [ 62.869113][ T12] RAX: 0000000000000017 RBX: ffff88808c90a978 RCX: 0000000000000000 [ 62.877055][ T12] RDX: 0000000000000000 RSI: ffffffff815bb906 RDI: ffffed101531af8f [ 62.884997][ T12] RBP: ffff8880a98d7d30 R08: 0000000000000017 R09: ffffed1015d060d9 [ 62.892938][ T12] R10: ffffed1015d060d8 R11: ffff8880ae8306c7 R12: ffff88808c90a208 [ 62.900882][ T12] R13: ffff88808dc48648 R14: ffff88808c90a940 R15: ffff8880929faa00 [ 62.908825][ T12] FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 62.917725][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 62.924278][ T12] CR2: 000000000049f2b0 CR3: 0000000008e6d000 CR4: 00000000001406f0 [ 62.932309][ T12] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 62.940253][ T12] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 62.948210][ T12] Call Trace: [ 62.951486][ T12] process_one_work+0x9af/0x1740 [ 62.956396][ T12] ? __schedule+0x776/0x17d0 [ 62.960966][ T12] ? pwq_dec_nr_in_flight+0x320/0x320 [ 62.966310][ T12] ? lock_acquire+0x190/0x410 [ 62.970958][ T12] worker_thread+0x98/0xe40 [ 62.975433][ T12] ? trace_hardirqs_on+0x67/0x240 [ 62.980447][ T12] kthread+0x361/0x430 [ 62.985017][ T12] ? process_one_work+0x1740/0x1740 [ 62.990192][ T12] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 62.996765][ T12] ret_from_fork+0x24/0x30 [ 63.001150][ T12] Modules linked in: [ 63.005382][ T12] ---[ end trace c65e44ef4b16c854 ]--- [ 63.010971][ T12] RIP: 0010:rxrpc_local_processor.cold+0x24/0x29 [ 63.017301][ T12] Code: df a1 bc fa 0f 0b e8 c4 2b d3 fa 48 c7 c7 e0 24 5b 88 e8 cc a1 bc fa 0f 0b e8 b1 2b d3 fa 48 c7 c7 e0 24 5b 88 e8 b9 a1 bc fa <0f> 0b 90 90 90 55 48 89 e5 41 57 49 89 ff 41 56 41 55 41 54 53 48 [ 63.036921][ T12] RSP: 0018:ffff8880a98d7ce8 EFLAGS: 00010282 [ 63.043067][ T12] RAX: 0000000000000017 RBX: ffff88808c90a978 RCX: 0000000000000000 [ 63.051493][ T12] RDX: 0000000000000000 RSI: ffffffff815bb906 RDI: ffffed101531af8f [ 63.059473][ T12] RBP: ffff8880a98d7d30 R08: 0000000000000017 R09: ffffed1015d060d9 [ 63.067444][ T12] R10: ffffed1015d060d8 R11: ffff8880ae8306c7 R12: ffff88808c90a208 [ 63.075402][ T12] R13: ffff88808dc48648 R14: ffff88808c90a940 R15: ffff8880929faa00 [ 63.083398][ T12] FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 63.092328][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 63.098909][ T12] CR2: ffffffffff600400 CR3: 000000009b982000 CR4: 00000000001406f0 [ 63.106893][ T12] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 63.114840][ T12] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 63.122808][ T12] Kernel panic - not syncing: Fatal exception [ 63.130023][ T12] Kernel Offset: disabled [ 63.134337][ T12] Rebooting in 86400 seconds..