[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 67.994592][ T26] audit: type=1800 audit(1561349850.720:25): pid=9123 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 68.034916][ T26] audit: type=1800 audit(1561349850.720:26): pid=9123 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 68.069642][ T26] audit: type=1800 audit(1561349850.720:27): pid=9123 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 '10.128.0.56' (ECDSA) to the list of known hosts. executing program executing program executing program syzkaller login: [ 89.073510][ T9278] IPVS: ftp: loaded support on port[0] = 21 [ 89.108110][ T9280] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 89.140211][ T9282] IPVS: ftp: loaded support on port[0] = 21 [ 89.171012][ T9284] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 89.208180][ T9286] IPVS: ftp: loaded support on port[0] = 21 [ 89.241625][ T9288] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 89.271291][ T9290] IPVS: ftp: loaded support on port[0] = 21 [ 89.301066][ T9292] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 89.334161][ T9294] IPVS: ftp: loaded support on port[0] = 21 [ 89.364344][ T9296] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 89.399353][ T9298] IPVS: ftp: loaded support on port[0] = 21 [ 89.430888][ T9300] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 89.460980][ T9302] IPVS: ftp: loaded support on port[0] = 21 [ 89.492658][ T9304] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 89.524277][ T9306] IPVS: ftp: loaded support on port[0] = 21 [ 89.558657][ T9308] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 89.589937][ T9310] IPVS: ftp: loaded support on port[0] = 21 [ 89.623455][ T9312] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 89.663244][ T9314] IPVS: ftp: loaded support on port[0] = 21 [ 89.699774][ T9316] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 89.732810][ T9318] IPVS: ftp: loaded support on port[0] = 21 [ 89.767076][ T9320] IPVS: ftp: loaded support on port[0] = 21 executing program [ 89.811080][ T9323] IPVS: ftp: loaded support on port[0] = 21 [ 89.877870][ T9325] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 89.951190][ T9327] IPVS: ftp: loaded support on port[0] = 21 executing program [ 89.998721][ T9329] IPVS: ftp: loaded support on port[0] = 21 executing program [ 90.047882][ T9331] IPVS: ftp: loaded support on port[0] = 21 executing program [ 90.090485][ T9333] IPVS: ftp: loaded support on port[0] = 21 executing program [ 90.138322][ T9335] IPVS: ftp: loaded support on port[0] = 21 executing program [ 90.197770][ T9337] IPVS: ftp: loaded support on port[0] = 21 executing program [ 90.247692][ T9339] IPVS: ftp: loaded support on port[0] = 21 executing program [ 90.308835][ T9341] IPVS: ftp: loaded support on port[0] = 21 executing program [ 90.358541][ T9343] IPVS: ftp: loaded support on port[0] = 21 executing program [ 90.415293][ T9345] IPVS: ftp: loaded support on port[0] = 21 executing program [ 90.488481][ T9347] IPVS: ftp: loaded support on port[0] = 21 executing program [ 90.547787][ T9349] IPVS: ftp: loaded support on port[0] = 21 executing program [ 90.608199][ T9351] IPVS: ftp: loaded support on port[0] = 21 executing program [ 90.661891][ T9353] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 90.708888][ T9355] IPVS: ftp: loaded support on port[0] = 21 [ 90.746722][ T9357] IPVS: ftp: loaded support on port[0] = 21 [ 90.787842][ T9359] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program [ 90.873530][ T9361] IPVS: ftp: loaded support on port[0] = 21 [ 90.910941][ T9363] IPVS: ftp: loaded support on port[0] = 21 executing program [ 90.947224][ T9365] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 90.990846][ T9367] IPVS: ftp: loaded support on port[0] = 21 [ 91.025842][ T9369] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 91.057059][ T9371] IPVS: ftp: loaded support on port[0] = 21 [ 91.090110][ T9373] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 91.122169][ T9375] IPVS: ftp: loaded support on port[0] = 21 [ 91.155731][ T9377] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 91.191647][ T9379] IPVS: ftp: loaded support on port[0] = 21 [ 91.227720][ T9381] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 91.264091][ T9383] IPVS: ftp: loaded support on port[0] = 21 [ 91.300609][ T9385] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 91.336586][ T9387] IPVS: ftp: loaded support on port[0] = 21 [ 91.372820][ T9389] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 91.409508][ T9391] IPVS: ftp: loaded support on port[0] = 21 [ 91.447520][ T9393] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 91.486073][ T9395] IPVS: ftp: loaded support on port[0] = 21 [ 91.524239][ T9397] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 91.560504][ T9399] IPVS: ftp: loaded support on port[0] = 21 [ 91.598124][ T9401] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 91.634094][ T9403] IPVS: ftp: loaded support on port[0] = 21 [ 91.670547][ T9405] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 91.707310][ T9407] IPVS: ftp: loaded support on port[0] = 21 [ 91.745861][ T9409] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 91.782431][ T9411] IPVS: ftp: loaded support on port[0] = 21 [ 91.818623][ T9413] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 91.854065][ T9415] IPVS: ftp: loaded support on port[0] = 21 [ 91.892981][ T9417] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 91.930971][ T9419] IPVS: ftp: loaded support on port[0] = 21 [ 91.970820][ T9421] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 92.009891][ T9423] IPVS: ftp: loaded support on port[0] = 21 [ 92.045862][ T9425] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 92.083112][ T9427] IPVS: ftp: loaded support on port[0] = 21 [ 92.120973][ T9429] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 92.159311][ T9431] IPVS: ftp: loaded support on port[0] = 21 [ 92.196002][ T9433] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 92.232791][ T9435] IPVS: ftp: loaded support on port[0] = 21 [ 92.270701][ T9437] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 92.307340][ T9439] IPVS: ftp: loaded support on port[0] = 21 [ 92.345623][ T9441] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 92.383750][ T9443] IPVS: ftp: loaded support on port[0] = 21 [ 92.420264][ T9445] IPVS: ftp: loaded support on port[0] = 21 executing program [ 92.458542][ T9447] IPVS: ftp: loaded support on port[0] = 21 [ 92.498230][ T9449] IPVS: ftp: loaded support on port[0] = 21 executing program [ 92.607674][ T9451] IPVS: ftp: loaded support on port[0] = 21 executing program [ 92.718823][ T9453] IPVS: ftp: loaded support on port[0] = 21 executing program [ 92.833488][ T9455] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 92.946339][ T9457] IPVS: ftp: loaded support on port[0] = 21 [ 93.008325][ T9459] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 93.097059][ T9461] IPVS: ftp: loaded support on port[0] = 21 [ 93.161405][ T9463] IPVS: ftp: loaded support on port[0] = 21 executing program [ 93.257699][ T9465] IPVS: ftp: loaded support on port[0] = 21 executing program [ 93.382322][ T9467] IPVS: ftp: loaded support on port[0] = 21 executing program [ 93.482898][ T9469] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 93.586182][ T9471] IPVS: ftp: loaded support on port[0] = 21 [ 93.643364][ T9473] IPVS: ftp: loaded support on port[0] = 21 executing program [ 93.753743][ T9475] IPVS: ftp: loaded support on port[0] = 21 [ 94.225246][ T9475] kasan: CONFIG_KASAN_INLINE enabled [ 94.230976][ T9475] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 94.239926][ T9475] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 94.247217][ T9475] CPU: 0 PID: 9475 Comm: syz-executor842 Not tainted 5.2.0-rc5-next-20190621 #20 [ 94.257018][ T9475] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 94.268205][ T9475] RIP: 0010:ovs_ct_exit+0x1ac/0x4ec [ 94.273988][ T9475] Code: 01 00 00 00 48 c7 c7 c0 3e da 88 e8 3e 4b 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 [ 94.293995][ T9475] RSP: 0018:ffff88809e287b10 EFLAGS: 00010206 [ 94.300892][ T9475] RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 1ffff11014412d60 [ 94.309213][ T9475] RDX: 000000000000000a RSI: 1ffff11014412d67 RDI: 0000000000000286 [ 94.317670][ T9475] RBP: ffff88809e287b50 R08: ffff8880a2096280 R09: 0000000000000002 [ 94.326133][ T9475] R10: fffffbfff13429ff R11: ffffffff89a14fff R12: 0000000000000000 [ 94.334566][ T9475] R13: ffff88808b12e240 R14: ffff8880a1237240 R15: dffffc0000000000 [ 94.342973][ T9475] FS: 00007fd3607fa700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 94.353797][ T9475] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 94.361351][ T9475] CR2: 00000000004b4ca0 CR3: 0000000090546000 CR4: 00000000001406f0 [ 94.370876][ T9475] Call Trace: [ 94.374824][ T9475] ? kasan_check_read+0x11/0x20 [ 94.380283][ T9475] ovs_exit_net+0x1f8/0xc30 [ 94.385145][ T9475] ? synchronize_rcu.part.0+0xcf/0xe0 [ 94.391019][ T9475] ? kfree_call_rcu+0x10/0x10 [ 94.395690][ T9475] ? ovs_dp_cmd_del+0x270/0x270 [ 94.400845][ T9475] ? ovs_dp_cmd_del+0x270/0x270 [ 94.405808][ T9475] ops_exit_list.isra.0+0xaa/0x150 [ 94.412303][ T9475] setup_net+0x518/0x870 [ 94.417111][ T9475] ? ops_init+0x410/0x410 [ 94.421902][ T9475] ? kasan_check_write+0x14/0x20 [ 94.428635][ T9475] ? down_read_killable+0x51/0x220 [ 94.433748][ T9475] copy_net_ns+0x1df/0x340 [ 94.438424][ T9475] create_new_namespaces+0x400/0x7b0 [ 94.443875][ T9475] unshare_nsproxy_namespaces+0xc2/0x200 [ 94.449877][ T9475] ksys_unshare+0x444/0x980 [ 94.454513][ T9475] ? walk_process_tree+0x2c0/0x2c0 [ 94.459622][ T9475] ? up_read+0xc4/0x200 [ 94.464415][ T9475] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 94.469997][ T9475] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 94.476157][ T9475] ? do_syscall_64+0x26/0x6a0 [ 94.481170][ T9475] ? lockdep_hardirqs_on+0x418/0x5d0 [ 94.486842][ T9475] __x64_sys_unshare+0x31/0x40 [ 94.491646][ T9475] do_syscall_64+0xfd/0x6a0 [ 94.496419][ T9475] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 94.502360][ T9475] RIP: 0033:0x4465f9 [ 94.506431][ T9475] 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 [ 94.527649][ T9475] RSP: 002b:00007fd3607f9db8 EFLAGS: 00000246 ORIG_RAX: 0000000000000110 [ 94.536631][ T9475] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 00000000004465f9 [ 94.545048][ T9475] RDX: 0000000000402634 RSI: af7cba9b9a57c52c RDI: 0000000040000000 [ 94.553586][ T9475] RBP: 00000000006dbc20 R08: 00007fd3607fa700 R09: 0000000000000000 [ 94.563022][ T9475] R10: 00007fd3607fa700 R11: 0000000000000246 R12: 00000000006dbc2c [ 94.571948][ T9475] R13: 00007ffea2acfc7f R14: 00007fd3607fa9c0 R15: 0000000000000000 [ 94.580426][ T9475] Modules linked in: [ 94.585675][ T9475] ---[ end trace 137ce4c1ce36685a ]--- [ 94.591280][ T9475] RIP: 0010:ovs_ct_exit+0x1ac/0x4ec [ 94.596780][ T9475] Code: 01 00 00 00 48 c7 c7 c0 3e da 88 e8 3e 4b 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 [ 94.618087][ T9475] RSP: 0018:ffff88809e287b10 EFLAGS: 00010206 [ 94.625720][ T9475] RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 1ffff11014412d60 [ 94.635166][ T9475] RDX: 000000000000000a RSI: 1ffff11014412d67 RDI: 0000000000000286 [ 94.643429][ T9475] RBP: ffff88809e287b50 R08: ffff8880a2096280 R09: 0000000000000002 [ 94.652049][ T9475] R10: fffffbfff13429ff R11: ffffffff89a14fff R12: 0000000000000000 [ 94.661449][ T9475] R13: ffff88808b12e240 R14: ffff8880a1237240 R15: dffffc0000000000 [ 94.671138][ T9475] FS: 00007fd3607fa700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 94.681019][ T9475] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 94.687645][ T9475] CR2: 00000000004b4ca0 CR3: 0000000090546000 CR4: 00000000001406f0 [ 94.696118][ T9475] Kernel panic - not syncing: Fatal exception [ 94.704419][ T9475] Kernel Offset: disabled [ 94.709082][ T9475] Rebooting in 86400 seconds..