[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 56.509902][ T26] audit: type=1800 audit(1567041097.019:25): pid=8606 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 56.549980][ T26] audit: type=1800 audit(1567041097.029:26): pid=8606 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 56.596017][ T26] audit: type=1800 audit(1567041097.029:27): pid=8606 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 '10.128.1.45' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 67.163628][ T8761] IPVS: ftp: loaded support on port[0] = 21 [ 67.195893][ T3618] rxrpc: Assertion failed [ 67.200828][ T3618] ------------[ cut here ]------------ [ 67.206286][ T3618] kernel BUG at net/rxrpc/local_object.c:433! [ 67.212977][ T3618] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 67.219084][ T3618] CPU: 0 PID: 3618 Comm: kworker/0:3 Not tainted 5.3.0-rc5+ #151 [ 67.226804][ T3618] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.236854][ T3618] Workqueue: krxrpcd rxrpc_local_processor [ 67.242647][ T3618] RIP: 0010:rxrpc_local_processor.cold+0x24/0x29 [ 67.248959][ T3618] 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 [ 67.268545][ T3618] RSP: 0018:ffff88809c2afce8 EFLAGS: 00010282 [ 67.274602][ T3618] RAX: 0000000000000017 RBX: ffff8880a7d72038 RCX: 0000000000000000 [ 67.282553][ T3618] RDX: 0000000000000000 RSI: ffffffff815c2456 RDI: ffffed1013855f8f [ 67.290522][ T3618] RBP: ffff88809c2afd30 R08: 0000000000000017 R09: ffffed1015d060d1 [ 67.298477][ T3618] R10: ffffed1015d060d0 R11: ffff8880ae830687 R12: ffff8880a3aed888 [ 67.306599][ T3618] R13: ffff88808cdc0648 R14: ffff8880a7d72000 R15: ffff88808941e540 [ 67.314568][ T3618] FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 67.323475][ T3618] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 67.330033][ T3618] CR2: 0000000020000080 CR3: 0000000086e5d000 CR4: 00000000001406f0 [ 67.337983][ T3618] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 67.345934][ T3618] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 67.353893][ T3618] Call Trace: [ 67.357169][ T3618] process_one_work+0x9af/0x1740 [ 67.362090][ T3618] ? pwq_dec_nr_in_flight+0x320/0x320 [ 67.367441][ T3618] ? lock_acquire+0x190/0x410 [ 67.372188][ T3618] worker_thread+0x98/0xe40 [ 67.376671][ T3618] ? trace_hardirqs_on+0x67/0x240 [ 67.381705][ T3618] kthread+0x361/0x430 [ 67.385758][ T3618] ? process_one_work+0x1740/0x1740 [ 67.390933][ T3618] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 67.397266][ T3618] ret_from_fork+0x24/0x30 [ 67.401660][ T3618] Modules linked in: [ 67.405762][ T3618] ---[ end trace 04a8132b0d2fb75c ]--- [ 67.411349][ T3618] RIP: 0010:rxrpc