[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 69.266589][ T26] kauditd_printk_skb: 7 callbacks suppressed [ 69.266599][ T26] audit: type=1800 audit(1567049208.744:29): pid=9693 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 69.307635][ T26] audit: type=1800 audit(1567049208.744:30): pid=9693 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.221' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 76.630317][ T9844] IPVS: ftp: loaded support on port[0] = 21 [ 76.653890][ T22] rxrpc: Assertion failed [ 76.659187][ T22] ------------[ cut here ]------------ [ 76.665005][ T22] kernel BUG at net/rxrpc/local_object.c:433! [ 76.671373][ T22] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 76.678035][ T22] CPU: 1 PID: 22 Comm: kworker/1:1 Not tainted 5.3.0-rc6+ #179 [ 76.686313][ T22] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 76.696479][ T22] Workqueue: krxrpcd rxrpc_local_processor [ 76.702278][ T22] RIP: 0010:rxrpc_local_processor.cold+0x24/0x29 [ 76.708763][ T22] Code: 3f 74 c0 fa 0f 0b e8 f4 d4 d6 fa 48 c7 c7 e0 59 3a 88 e8 2c 74 c0 fa 0f 0b e8 e1 d4 d6 fa 48 c7 c7 e0 59 3a 88 e8 19 74 c0 fa <0f> 0b 90 90 90 55 48 89 e5 41 57 49 89 ff 41 56 41 55 41 54 53 48 [ 76.728369][ T22] RSP: 0018:ffff8880a9a47ce8 EFLAGS: 00010282 [ 76.735025][ T22] RAX: 0000000000000017 RBX: ffff8880926804b8 RCX: 0000000000000000 [ 76.743067][ T22] RDX: 0000000000000000 RSI: ffffffff815c2576 RDI: ffffed1015348f8f [ 76.751022][ T22] RBP: ffff8880a9a47d30 R08: 0000000000000017 R09: fffffbfff11b42ed [ 76.759151][ T22] R10: fffffbfff11b42ec R11: ffffffff88da1763 R12: ffff8880924b3d08 [ 76.768826][ T22] R13: ffff8880931d0608 R14: ffff888092680480 R15: ffff8880a6a55000 [ 76.776910][ T22] FS: 0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 76.785831][ T22] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 76.793484][ T22] CR2: 0000000020000040 CR3: 0000000008c6d000 CR4: 00000000001406e0 [ 76.801618][ T22] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 76.809616][ T22] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 76.817660][ T22] Call Trace: [ 76.821194][ T22] process_one_work+0x9af/0x1740 [ 76.826139][ T22] ? pwq_dec_nr_in_flight+0x320/0x320 [ 76.831516][ T22] ? lock_acquire+0x190/0x410 [ 76.836177][ T22] worker_thread+0x98/0xe40 [ 76.840757][ T22] ? trace_hardirqs_on+0x67/0x240 [ 76.846403][ T22] kthread+0x361/0x430 [ 76.850463][ T22] ? process_one_work+0x1740/0x1740 [ 76.855639][ T22] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 76.862097][ T22] ret_from_fork+0x24/0x30 [ 76.866602][ T22] Modules linked in: [ 76.870904][ T22] ---[ end trace 8cff2df57398c88d ]--- [ 76.878876][ T22] RIP: 0010:rxrpc_local_processor.cold+0x24/0x29 [ 76.885211][ T22] Code: 3f 74 c0 fa 0f 0b e8 f4 d4 d6 fa 48 c7 c7 e0 59 3a 88 e8 2c 74 c0 fa 0f 0b e8 e1 d4 d6 fa 48 c7 c7 e0 59 3a 88 e8 19 74 c0 fa <0f> 0b 90 90 90 55 48 89 e5 41 57 49 89 ff 41 56 41 55 41 54 53 48 [ 76.904998][ T22] RSP: 0018:ffff8880a9a47ce8 EFLAGS: 00010282 [ 76.911095][ T22] RAX: 0000000000000017 RBX: ffff8880926804b8 RCX: 0000000000000000 [ 76.919261][ T22] RDX: 0000000000000000 RSI: ffffffff815c2576 RDI: ffffed1015348f8f [ 76.927422][ T22] RBP: ffff8880a9a47d30 R08: 0000000000000017 R09: fffffbfff11b42ed [ 76.935380][ T22] R10: fffffbfff11b42ec R11: ffffffff88da1763 R12: ffff8880924b3d08 [ 76.943380][ T22] R13: ffff8880931d0608 R14: ffff888092680480 R15: ffff8880a6a55000 [ 76.951600][ T22] FS: 0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 76.964342][ T22] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 76.970957][ T22] CR2: 0000000020000040 CR3: 0000000008c6d000 CR4: 00000000001406e0 [ 76.978970][ T22] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 76.986956][ T22] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 76.995251][ T22] Kernel panic - not syncing: Fatal exception [ 77.004273][ T22] Kernel Offset: disabled [ 77.021195][ T22] Rebooting in 86400 seconds..