[....] 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. [ 64.395429][ T26] kauditd_printk_skb: 7 callbacks suppressed [ 64.395439][ T26] audit: type=1800 audit(1567642720.543:29): pid=9724 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 [ 64.432419][ T26] audit: type=1800 audit(1567642720.543:30): pid=9724 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 '10.128.0.127' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 169.454194][ C0] kasan: CONFIG_KASAN_INLINE enabled [ 169.460679][ C0] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 169.469220][ C0] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 169.476178][ C0] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 5.3.0-rc7+ #0 [ 169.484121][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 169.494611][ C0] RIP: 0010:rxrpc_error_report+0x23b/0x1a80 [ 169.500628][ C0] Code: ff ff ff ba 24 00 00 00 31 f6 48 89 df e8 ed ff 0f fb 49 8d be 5c 02 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 16 [ 169.521732][ C0] RSP: 0018:ffff8880a98b74a0 EFLAGS: 00010207 [ 169.528353][ C0] RAX: dffffc0000000000 RBX: ffff8880a98b7500 RCX: 0000000000000000 [ 169.537768][ C0] RDX: 000000000000004b RSI: 0000000000000000 RDI: 000000000000025c [ 169.546199][ C0] RBP: ffff8880a98b75a0 R08: 0000000000000004 R09: ffff8880a98b7500 [ 169.554343][ C0] R10: ffffed1015316ea4 R11: 0000000000000003 R12: ffff8880a1eda580 [ 169.562412][ C0] R13: ffff8880a03252b0 R14: 0000000000000000 R15: ffff8880a98b7640 [ 169.570744][ C0] FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 169.579676][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 169.586627][ C0] CR2: 0000000020000040 CR3: 0000000008c6d000 CR4: 00000000001406f0 [ 169.594990][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 169.603334][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 169.611488][ C0] Call Trace: [ 169.614785][ C0] ? __kasan_check_write+0x14/0x20 [ 169.619895][ C0] ? lock_downgrade+0x920/0x920 [ 169.624887][ C0] ? rxrpc_send_keepalive+0x940/0x940 [ 169.630411][ C0] ? skb_queue_tail+0x26/0x150 [ 169.635335][ C0] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 169.641238][ C0] sock_queue_err_skb+0x34c/0x7c0 [ 169.646349][ C0] ? sock_queue_err_skb+0x34c/0x7c0 [ 169.651898][ C0] ? skb_copy_expand+0x320/0x320 [ 169.657374][ C0] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 169.663189][ C0] ip_icmp_error+0x3e3/0x580 [ 169.667946][ C0] __udp4_lib_err+0x609/0x1320 [ 169.673616][ C0] ? __kasan_check_write+0x14/0x20 [ 169.678952][ C0] ? do_raw_read_unlock+0x3f/0x70 [ 169.684365][ C0] ? __udp4_lib_err+0x1320/0x1320 [ 169.689843][ C0] udp_err+0x25/0x30 [ 169.693818][ C0] icmp_socket_deliver+0x1ea/0x370 [ 169.699063][ C0] icmp_unreach+0x34a/0xaa0 [ 169.704411][ C0] icmp_rcv+0xede/0x15a0 [ 169.709357][ C0] ? ip_local_deliver+0x38b/0x520 [ 169.714388][ C0] ip_protocol_deliver_rcu+0x5a/0x8b0 [ 169.720403][ C0] ip_local_deliver_finish+0x23b/0x390 [ 169.726102][ C0] ip_local_deliver+0x1e9/0x520 [ 169.731222][ C0] ? ip_local_deliver_finish+0x390/0x390 [ 169.737117][ C0] ? __kasan_check_read+0x11/0x20 [ 169.743250][ C0] ? ip_protocol_deliver_rcu+0x8b0/0x8b0 [ 169.750137][ C0] ? ip_rcv_finish_core.isra.0+0x7fd/0x1ae0 [ 169.756151][ C0] ip_rcv_finish+0x1d9/0x2e0 [ 169.760940][ C0] ip_rcv+0xe8/0x3f0 [ 169.764837][ C0] ? ip_local_deliver+0x520/0x520 [ 169.770013][ C0] ? rwlock_bug.part.0+0x90/0x90 [ 169.775457][ C0] ? ip_rcv_finish_core.isra.0+0x1ae0/0x1ae0 [ 169.781588][ C0] ? ip_local_deliver+0x520/0x520 [ 169.786947][ C0] __netif_receive_skb_one_core+0x113/0x1a0 [ 169.792926][ C0] ? __netif_receive_skb_core+0x3060/0x3060 [ 169.799192][ C0] ? lock_acquire+0x190/0x410 [ 169.803885][ C0] ? process_backlog+0x195/0x750 [ 169.809401][ C0] __netif_receive_skb+0x2c/0x1d0 [ 169.814711][ C0] process_backlog+0x206/0x750 [ 169.819478][ C0] net_rx_action+0x4d6/0x1030 [ 169.824321][ C0] ? napi_complete_done+0x4b0/0x4b0 [ 169.829528][ C0] ? sched_clock+0x2e/0x50 [ 169.834131][ C0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 169.840593][ C0] __do_softirq+0x262/0x98c [ 169.845107][ C0] ? takeover_tasklets+0x820/0x820 [ 169.850404][ C0] run_ksoftirqd+0x8e/0x110 [ 169.855500][ C0] smpboot_thread_fn+0x6a3/0xa40 [ 169.860439][ C0] ? smpboot_register_percpu_thread+0x390/0x390 [ 169.866838][ C0] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 169.873240][ C0] ? __kthread_parkme+0x108/0x1c0 [ 169.878479][ C0] ? __kasan_check_read+0x11/0x20 [ 169.883683][ C0] kthread+0x361/0x430 [ 169.888093][ C0] ? smpboot_register_percpu_thread+0x390/0x390 [ 169.894423][ C0] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 169.900763][ C0] ret_from_fork+0x24/0x30 executing program executing program executing program executing program executing program executing program executing program executing program [ 169.905411][ C0] Modules linked in: [ 169.909398][ C0] ---[ end trace c8653ea2a1b90651 ]--- [ 169.915097][ C0] RIP: 0010:rxrpc_error_report+0x23b/0x1a80 [ 169.921114][ C0] Code: ff ff ff ba 24 00 00 00 31 f6 48 89 df e8 ed ff 0f fb 49 8d be 5c 02 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 16 [ 169.940993][ C0] RSP: 0018:ffff8880a98b74a0 EFLAGS: 00010207 [ 169.947210][ C0] RAX: dffffc0000000000 RBX: ffff8880a98b7500 RCX: 0000000000000000 [ 169.955246][ C0] RDX: 000000000000004b RSI: 0000000000000000 RDI: 000000000000025c [ 169.963242][ C0] RBP: ffff8880a98b75a0 R08: 0000000000000004 R09: ffff8880a98b7500 [ 169.971654][ C0] R10: ffffed1015316ea4 R11: 0000000000000003 R12: ffff8880a1eda580 [ 169.980427][ C0] R13: ffff8880a03252b0 R14: 0000000000000000 R15: ffff8880a98b7640 [ 169.989610][ C0] FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 169.999337][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 executing program executing program executing program [ 170.006962][ C0] CR2: 0000000020000040 CR3: 0000000008c6d000 CR4: 00000000001406f0 [ 170.015692][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 170.024802][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 170.033013][ C0] Kernel panic - not syncing: Fatal exception in interrupt [ 170.042203][ C0] Kernel Offset: disabled [ 170.048716][ C0] Rebooting in 86400 seconds..