[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 37.660304] audit: type=1800 audit(1545687518.961:25): pid=7808 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 37.689241] audit: type=1800 audit(1545687518.961:26): pid=7808 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 37.715678] audit: type=1800 audit(1545687518.971:27): pid=7808 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 '10.128.15.229' (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 syzkaller login: [ 69.521035] IPv6: ADDRCONF(NETDEV_CHANGE): rose0: link becomes ready executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 71.037584] kasan: CONFIG_KASAN_INLINE enabled [ 71.042264] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 71.049653] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 71.055875] CPU: 1 PID: 2657 Comm: aoe_tx0 Not tainted 4.20.0-rc7+ #247 [ 71.062610] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 71.071949] RIP: 0010:ax25cmp+0x3e/0x180 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 71.075989] Code: f6 41 55 49 89 fd 41 54 49 89 f4 53 48 83 ec 10 48 89 7d d0 48 89 75 c8 e8 3f 85 82 fa 4c 89 e8 4c 89 ea 48 c1 e8 03 83 e2 07 <42> 0f b6 04 38 38 d0 7f 08 84 c0 0f 85 23 01 00 00 4c 89 e0 4c 89 [ 71.094877] RSP: 0018:ffff8881ce20f3c8 EFLAGS: 00010202 [ 71.100223] RAX: 0000000000000002 RBX: ffff8881c5ad4580 RCX: 0000000000000001 [ 71.107478] RDX: 0000000000000007 RSI: ffffffff86fbd361 RDI: 0000000000000017 [ 71.114725] RBP: ffff8881ce20f400 R08: ffffed1039c41e70 R09: ffffed1039c41e6f [ 71.121976] R10: ffffed1039c41e6f R11: 0000000000000003 R12: ffff8881c5ad4588 [ 71.129227] R13: 0000000000000017 R14: 0000000000000000 R15: dffffc0000000000 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 71.136489] FS: 0000000000000000(0000) GS:ffff8881daf00000(0000) knlGS:0000000000000000 [ 71.144691] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 71.150566] CR2: 0000000020000080 CR3: 000000000946a000 CR4: 00000000001406e0 [ 71.157821] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 71.165069] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 71.172313] Call Trace: [ 71.174889] rose_route_frame+0x2d6/0x19b0 [ 71.179114] ? register_lock_class+0xdff/0x29d0 [ 71.183766] ? rose_link_device_down+0xa0/0xa0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 71.188328] ? trace_hardirqs_off+0xb8/0x310 [ 71.192715] ? kasan_check_read+0x11/0x20 [ 71.196845] ? trace_hardirqs_on+0x310/0x310 [ 71.201233] ? trace_hardirqs_on+0xbd/0x310 [ 71.205536] ? graph_lock+0x270/0x270 [ 71.209319] ? graph_lock+0x270/0x270 [ 71.213103] ? trace_hardirqs_off+0xb8/0x310 [ 71.217494] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 71.223084] ? check_preemption_disabled+0x48/0x280 [ 71.228872] ? __lock_is_held+0xb5/0x140 [ 71.232923] rose_xmit+0x8e/0x180 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 71.236460] dev_hard_start_xmit+0x295/0xc90 [ 71.240855] ? dev_direct_xmit+0x6b0/0x6b0 [ 71.245073] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 71.250588] ? netif_skb_features+0x690/0xb70 [ 71.255061] ? find_held_lock+0x36/0x1c0 [ 71.259107] ? lock_acquire+0x1ed/0x520 [ 71.263061] ? __dev_queue_xmit+0x2fff/0x3950 [ 71.267543] ? kasan_check_read+0x11/0x20 [ 71.271668] ? do_raw_spin_lock+0x14f/0x350 [ 71.275968] ? rwlock_bug.part.2+0x90/0x90 [ 71.280182] ? netif_skb_features+0xb70/0xb70 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 71.284656] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 71.290173] ? check_preemption_disabled+0x48/0x280 [ 71.295167] __dev_queue_xmit+0x2f0d/0x3950 [ 71.299467] ? __lock_acquire+0x62f/0x4c20 [ 71.303685] ? netdev_pick_tx+0x310/0x310 [ 71.307820] ? __lock_acquire+0x62f/0x4c20 [ 71.312038] ? mark_held_locks+0x130/0x130 [ 71.316253] ? mark_held_locks+0x130/0x130 [ 71.320469] ? mark_held_locks+0x130/0x130 [ 71.324692] ? __switch_to_asm+0x40/0x70 [ 71.328731] ? preempt_notifier_register+0x200/0x200 [ 71.333819] ? __switch_to_asm+0x34/0x70 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 71.337856] ? __switch_to_asm+0x34/0x70 [ 71.341899] ? __switch_to_asm+0x40/0x70 [ 71.345938] ? __switch_to_asm+0x34/0x70 [ 71.349994] ? __switch_to_asm+0x40/0x70 [ 71.354032] ? __switch_to_asm+0x34/0x70 [ 71.358069] ? __switch_to_asm+0x40/0x70 [ 71.362106] ? __switch_to_asm+0x34/0x70 [ 71.366244] ? __switch_to_asm+0x34/0x70 [ 71.370299] ? __switch_to_asm+0x40/0x70 [ 71.374339] ? __switch_to_asm+0x40/0x70 [ 71.378381] ? __switch_to_asm+0x34/0x70 [ 71.382421] ? __switch_to_asm+0x40/0x70 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 71.386494] ? __schedule+0x874/0x1ed0 [ 71.390358] ? __switch_to_asm+0x40/0x70 [ 71.394402] ? __switch_to_asm+0x34/0x70 [ 71.398441] ? __switch_to_asm+0x40/0x70 [ 71.402575] ? graph_lock+0x270/0x270 [ 71.406364] ? graph_lock+0x270/0x270 [ 71.410189] ? find_held_lock+0x36/0x1c0 [ 71.414246] ? tx+0x59/0xd0 [ 71.417169] ? _raw_spin_unlock_irq+0x27/0x80 [ 71.421641] ? _raw_spin_unlock_irq+0x27/0x80 [ 71.426112] ? aoe_exit+0x50/0x50 [ 71.429546] ? lockdep_hardirqs_on+0x421/0x5c0 [ 71.434108] ? trace_hardirqs_on+0xbd/0x310 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 71.438462] ? kasan_check_read+0x11/0x20 [ 71.442606] ? tx+0x59/0xd0 [ 71.445708] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 71.451145] ? aoe_exit+0x50/0x50 [ 71.454680] dev_queue_xmit+0x17/0x20 [ 71.458479] ? dev_queue_xmit+0x17/0x20 [ 71.462465] tx+0x77/0xd0 [ 71.465201] kthread+0x296/0x4a0 [ 71.468549] ? aoehdr_atainit+0x330/0x330 [ 71.472681] ? wake_up_q+0x100/0x100 [ 71.476374] ? _raw_spin_unlock_irqrestore+0x6d/0xd0 [ 71.481460] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 71.486980] ? __kthread_parkme+0xfb/0x1a0 [ 71.491197] ? aoehdr_atainit+0x330/0x330 [ 71.495339] kthread+0x35a/0x440 [ 71.498684] ? kthread_bind+0x40/0x40 [ 71.502463] ret_from_fork+0x3a/0x50 [ 71.506159] Modules linked in: [ 71.509415] ---[ end trace b1cc94262889096f ]--- [ 71.514162] RIP: 0010:ax25cmp+0x3e/0x180 [ 71.518237] Code: f6 41 55 49 89 fd 41 54 49 89 f4 53 48 83 ec 10 48 89 7d d0 48 89 75 c8 e8 3f 85 82 fa 4c 89 e8 4c 89 ea 48 c1 e8 03 83 e2 07 <42> 0f b6 04 38 38 d0 7f 08 84 c0 0f 85 23 01 00 00 4c 89 e0 4c 89 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 71.537222] RSP: 0018:ffff8881ce20f3c8 EFLAGS: 00010202 [ 71.542583] RAX: 0000000000000002 RBX: ffff8881c5ad4580 RCX: 0000000000000001 [ 71.549929] RDX: 0000000000000007 RSI: ffffffff86fbd361 RDI: 0000000000000017 [ 71.557231] RBP: ffff8881ce20f400 R08: ffffed1039c41e70 R09: ffffed1039c41e6f [ 71.564484] R10: ffffed1039c41e6f R11: 0000000000000003 R12: ffff8881c5ad4588 [ 71.571768] R13: 0000000000000017 R14: 0000000000000000 R15: dffffc0000000000 [ 71.579042] FS: 0000000000000000(0000) GS:ffff8881daf00000(0000) knlGS:0000000000000000 executing program executing program executing program executing program executing program executing program executing program executing program [ 71.587284] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 71.593160] CR2: 0000000020000080 CR3: 000000000946a000 CR4: 00000000001406e0 [ 71.600478] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 71.607758] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 71.615022] Kernel panic - not syncing: Fatal exception in interrupt [ 71.622330] Kernel Offset: disabled [ 71.625950] Rebooting in 86400 seconds..