[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [ 65.527549][ T24] audit: type=1800 audit(1561248890.469:25): pid=8896 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 65.551406][ T24] audit: type=1800 audit(1561248890.469:26): pid=8896 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 65.572212][ T24] audit: type=1800 audit(1561248890.469:27): pid=8896 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[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.199' (ECDSA) to the list of known hosts. executing program executing program executing program syzkaller login: [ 117.553901][ T9051] IPVS: ftp: loaded support on port[0] = 21 [ 117.592008][ T9053] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 117.626219][ T9055] IPVS: ftp: loaded support on port[0] = 21 [ 117.659804][ T9057] IPVS: ftp: loaded support on port[0] = 21 executing program [ 117.699320][ T9059] IPVS: ftp: loaded support on port[0] = 21 [ 117.736125][ T9061] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program [ 117.770276][ T9063] IPVS: ftp: loaded support on port[0] = 21 [ 117.806854][ T9065] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 117.846071][ T9067] IPVS: ftp: loaded support on port[0] = 21 [ 117.882879][ T9069] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 117.920857][ T9071] IPVS: ftp: loaded support on port[0] = 21 [ 117.957502][ T9073] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 117.991909][ T9075] IPVS: ftp: loaded support on port[0] = 21 [ 118.028831][ T9077] IPVS: ftp: loaded support on port[0] = 21 executing program [ 118.066758][ T9079] IPVS: ftp: loaded support on port[0] = 21 [ 118.106273][ T9081] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program [ 118.182562][ T9084] IPVS: ftp: loaded support on port[0] = 21 [ 118.218319][ T9086] IPVS: ftp: loaded support on port[0] = 21 executing program [ 118.253497][ T9088] IPVS: ftp: loaded support on port[0] = 21 executing program [ 118.304275][ T9090] IPVS: ftp: loaded support on port[0] = 21 executing program [ 118.360075][ T9092] IPVS: ftp: loaded support on port[0] = 21 executing program [ 118.419094][ T9094] IPVS: ftp: loaded support on port[0] = 21 executing program [ 118.482366][ T9096] IPVS: ftp: loaded support on port[0] = 21 executing program [ 118.542608][ T9098] IPVS: ftp: loaded support on port[0] = 21 executing program [ 118.604811][ T9100] IPVS: ftp: loaded support on port[0] = 21 executing program [ 118.661633][ T9102] IPVS: ftp: loaded support on port[0] = 21 executing program [ 118.726783][ T9104] IPVS: ftp: loaded support on port[0] = 21 executing program [ 118.768908][ T9106] IPVS: ftp: loaded support on port[0] = 21 executing program [ 118.832399][ T9108] IPVS: ftp: loaded support on port[0] = 21 executing program [ 118.895654][ T9110] IPVS: ftp: loaded support on port[0] = 21 [ 118.931388][ T9112] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 118.993899][ T9114] IPVS: ftp: loaded support on port[0] = 21 executing program [ 119.054980][ T9116] IPVS: ftp: loaded support on port[0] = 21 executing program [ 119.119037][ T9118] IPVS: ftp: loaded support on port[0] = 21 executing program [ 119.179035][ T9120] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 119.230120][ T9122] IPVS: ftp: loaded support on port[0] = 21 [ 119.268647][ T9124] IPVS: ftp: loaded support on port[0] = 21 executing program [ 119.310467][ T9126] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 119.372252][ T9128] IPVS: ftp: loaded support on port[0] = 21 [ 119.411288][ T9130] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 119.445011][ T9132] IPVS: ftp: loaded support on port[0] = 21 [ 119.479058][ T9134] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 119.512377][ T9136] IPVS: ftp: loaded support on port[0] = 21 [ 119.545475][ T9138] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 119.576720][ T9140] IPVS: ftp: loaded support on port[0] = 21 [ 119.608019][ T9142] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 119.638073][ T9144] IPVS: ftp: loaded support on port[0] = 21 [ 119.670352][ T9146] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 119.702882][ T9148] IPVS: ftp: loaded support on port[0] = 21 [ 119.734499][ T9150] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 119.769426][ T9152] IPVS: ftp: loaded support on port[0] = 21 [ 119.804758][ T9154] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 119.841169][ T9156] IPVS: ftp: loaded support on port[0] = 21 [ 119.877890][ T9158] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 119.914479][ T9160] IPVS: ftp: loaded support on port[0] = 21 [ 119.953588][ T9162] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 119.988763][ T9164] IPVS: ftp: loaded support on port[0] = 21 [ 120.024547][ T9166] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 120.058983][ T9168] IPVS: ftp: loaded support on port[0] = 21 [ 120.092734][ T9170] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 120.128143][ T9172] IPVS: ftp: loaded support on port[0] = 21 [ 120.162422][ T9174] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 120.197242][ T9176] IPVS: ftp: loaded support on port[0] = 21 [ 120.231926][ T9178] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 120.266770][ T9180] IPVS: ftp: loaded support on port[0] = 21 [ 120.301969][ T9182] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 120.336701][ T9184] IPVS: ftp: loaded support on port[0] = 21 [ 120.370940][ T9186] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 120.406041][ T9188] IPVS: ftp: loaded support on port[0] = 21 [ 120.441643][ T9190] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 120.476182][ T9192] IPVS: ftp: loaded support on port[0] = 21 [ 120.511730][ T9194] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 120.547474][ T9196] IPVS: ftp: loaded support on port[0] = 21 [ 120.583814][ T9198] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 120.619091][ T9200] IPVS: ftp: loaded support on port[0] = 21 [ 120.656508][ T9202] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 120.693117][ T9204] IPVS: ftp: loaded support on port[0] = 21 [ 120.727525][ T9206] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 120.764457][ T9208] IPVS: ftp: loaded support on port[0] = 21 [ 120.800846][ T9210] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 120.835964][ T9212] IPVS: ftp: loaded support on port[0] = 21 [ 120.871170][ T9214] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 120.906393][ T9216] IPVS: ftp: loaded support on port[0] = 21 [ 120.941058][ T9218] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 120.975773][ T9220] IPVS: ftp: loaded support on port[0] = 21 [ 121.010962][ T9222] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 121.048222][ T9224] IPVS: ftp: loaded support on port[0] = 21 [ 121.082870][ T9226] IPVS: ftp: loaded support on port[0] = 21 executing program [ 121.118561][ T9228] IPVS: ftp: loaded support on port[0] = 21 [ 121.153358][ T9230] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 121.262096][ T9232] IPVS: ftp: loaded support on port[0] = 21 [ 121.300680][ T9234] IPVS: ftp: loaded support on port[0] = 21 executing program [ 121.398835][ T9236] IPVS: ftp: loaded support on port[0] = 21 executing program [ 121.507608][ T9238] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 121.615250][ T9240] IPVS: ftp: loaded support on port[0] = 21 [ 121.674574][ T9242] IPVS: ftp: loaded support on port[0] = 21 executing program [ 121.765252][ T9244] IPVS: ftp: loaded support on port[0] = 21 executing program [ 121.880256][ T9246] IPVS: ftp: loaded support on port[0] = 21 executing program [ 121.998533][ T9248] IPVS: ftp: loaded support on port[0] = 21 executing program [ 122.097300][ T9250] IPVS: ftp: loaded support on port[0] = 21 executing program [ 122.188123][ T9252] IPVS: ftp: loaded support on port[0] = 21 executing program [ 122.307240][ T9254] IPVS: ftp: loaded support on port[0] = 21 [ 122.500491][ T9254] kasan: CONFIG_KASAN_INLINE enabled [ 122.505893][ T9254] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 122.514146][ T9254] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 122.521112][ T9254] CPU: 0 PID: 9254 Comm: syz-executor566 Not tainted 5.2.0-rc5-next-20190620 #19 [ 122.530227][ T9254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 122.540282][ T9254] RIP: 0010:ovs_ct_exit+0x1ac/0x4ec [ 122.545478][ T9254] Code: 01 00 00 00 48 c7 c7 c0 3e da 88 e8 ee 7c 38 fa 49 8d 44 24 50 48 89 c2 48 89 45 d0 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 ee 02 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b [ 122.565066][ T9254] RSP: 0018:ffff88807c0afb10 EFLAGS: 00010206 [ 122.571119][ T9254] RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 1ffff110125b8d80 [ 122.579089][ T9254] RDX: 000000000000000a RSI: 1ffff110125b8d87 RDI: 0000000000000282 [ 122.587048][ T9254] RBP: ffff88807c0afb50 R08: ffff888092dc6380 R09: 0000000000000002 [ 122.595005][ T9254] R10: fffffbfff13429cf R11: ffffffff89a14e7f R12: 0000000000000000 [ 122.602966][ T9254] R13: ffff8880a3d28300 R14: ffff88808c726480 R15: dffffc0000000000 [ 122.610919][ T9254] FS: 00007fa3a03e1700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 122.619831][ T9254] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 122.626541][ T9254] CR2: 00000000004b4ca0 CR3: 000000009c802000 CR4: 00000000001406f0 [ 122.634514][ T9254] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 122.642474][ T9254] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 122.650433][ T9254] Call Trace: [ 122.653717][ T9254] ? kasan_check_read+0x11/0x20 [ 122.658571][ T9254] ovs_exit_net+0x1f8/0xc30 [ 122.663095][ T9254] ? synchronize_rcu.part.0+0xcf/0xe0 [ 122.668554][ T9254] ? kfree_call_rcu+0x10/0x10 [ 122.673224][ T9254] ? ovs_dp_cmd_del+0x270/0x270 [ 122.678092][ T9254] ? ovs_dp_cmd_del+0x270/0x270 [ 122.682935][ T9254] ops_exit_list.isra.0+0xaa/0x150 [ 122.688037][ T9254] setup_net+0x518/0x870 [ 122.692278][ T9254] ? ops_init+0x410/0x410 [ 122.696591][ T9254] ? kasan_check_write+0x14/0x20 [ 122.701796][ T9254] ? down_read_killable+0x51/0x220 [ 122.706894][ T9254] copy_net_ns+0x1df/0x340 [ 122.711384][ T9254] create_new_namespaces+0x400/0x7b0 [ 122.716659][ T9254] unshare_nsproxy_namespaces+0xc2/0x200 [ 122.722519][ T9254] ksys_unshare+0x444/0x980 [ 122.727063][ T9254] ? walk_process_tree+0x2c0/0x2c0 [ 122.732274][ T9254] ? up_read+0xc4/0x200 [ 122.736414][ T9254] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 122.741887][ T9254] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 122.747952][ T9254] ? do_syscall_64+0x26/0x6a0 [ 122.752658][ T9254] ? lockdep_hardirqs_on+0x418/0x5d0 [ 122.757936][ T9254] __x64_sys_unshare+0x31/0x40 [ 122.762686][ T9254] do_syscall_64+0xfd/0x6a0 [ 122.767174][ T9254] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 122.774267][ T9254] RIP: 0033:0x4465f9 [ 122.778144][ T9254] Code: e8 5c b3 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 0b 08 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 122.797749][ T9254] RSP: 002b:00007fa3a03e0db8 EFLAGS: 00000246 ORIG_RAX: 0000000000000110 [ 122.806144][ T9254] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 00000000004465f9 [ 122.814098][ T9254] RDX: 0000000000402634 RSI: 2291c17d847ffbf3 RDI: 0000000040000000 [ 122.822060][ T9254] RBP: 00000000006dbc20 R08: 00007fa3a03e1700 R09: 0000000000000000 [ 122.830012][ T9254] R10: 00007fa3a03e1700 R11: 0000000000000246 R12: 00000000006dbc2c [ 122.838058][ T9254] R13: 00007ffd42906a1f R14: 00007fa3a03e19c0 R15: 0000000000000000 [ 122.846187][ T9254] Modules linked in: [ 122.850926][ T9254] ---[ end trace 7c0d0be1891f8306 ]--- [ 122.856478][ T9254] RIP: 0010:ovs_ct_exit+0x1ac/0x4ec [ 122.861717][ T9254] Code: 01 00 00 00 48 c7 c7 c0 3e da 88 e8 ee 7c 38 fa 49 8d 44 24 50 48 89 c2 48 89 45 d0 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 ee 02 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b [ 122.881556][ T9254] RSP: 0018:ffff88807c0afb10 EFLAGS: 00010206 [ 122.887613][ T9254] RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 1ffff110125b8d80 [ 122.895673][ T9254] RDX: 000000000000000a RSI: 1ffff110125b8d87 RDI: 0000000000000282 [ 122.903673][ T9254] RBP: ffff88807c0afb50 R08: ffff888092dc6380 R09: 0000000000000002 [ 122.911699][ T9254] R10: fffffbfff13429cf R11: ffffffff89a14e7f R12: 0000000000000000 [ 122.919674][ T9254] R13: ffff8880a3d28300 R14: ffff88808c726480 R15: dffffc0000000000 [ 122.927785][ T9254] FS: 00007fa3a03e1700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 122.936760][ T9254] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 122.943519][ T9254] CR2: 00000000004b4ca0 CR3: 000000009c802000 CR4: 00000000001406f0 [ 122.951817][ T9254] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 122.959778][ T9254] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 122.967965][ T9254] Kernel panic - not syncing: Fatal exception [ 122.975468][ T9254] Kernel Offset: disabled [ 122.979880][ T9254] Rebooting in 86400 seconds..