[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 61.382212][ T24] audit: type=1800 audit(1561181592.527:25): pid=8872 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 61.402382][ T24] audit: type=1800 audit(1561181592.527:26): pid=8872 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 61.533355][ T24] audit: type=1800 audit(1561181592.677:27): pid=8872 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 '10.128.0.222' (ECDSA) to the list of known hosts. executing program executing program executing program syzkaller login: [ 85.153735][ T9026] IPVS: ftp: loaded support on port[0] = 21 [ 85.190763][ T9028] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 85.224956][ T9030] IPVS: ftp: loaded support on port[0] = 21 [ 85.258922][ T9032] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 85.293992][ T9034] IPVS: ftp: loaded support on port[0] = 21 [ 85.331100][ T9036] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 85.368923][ T9038] IPVS: ftp: loaded support on port[0] = 21 [ 85.406914][ T9040] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 85.440731][ T9042] IPVS: ftp: loaded support on port[0] = 21 [ 85.479341][ T9044] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 85.516054][ T9046] IPVS: ftp: loaded support on port[0] = 21 [ 85.553832][ T9048] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 85.587769][ T9050] IPVS: ftp: loaded support on port[0] = 21 [ 85.619109][ T9052] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 85.652292][ T9054] IPVS: ftp: loaded support on port[0] = 21 [ 85.685343][ T9056] IPVS: ftp: loaded support on port[0] = 21 executing program [ 85.715715][ T9058] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 85.776551][ T9061] IPVS: ftp: loaded support on port[0] = 21 [ 85.813201][ T9063] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 85.849238][ T9065] IPVS: ftp: loaded support on port[0] = 21 [ 85.886978][ T9067] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 85.925337][ T9069] IPVS: ftp: loaded support on port[0] = 21 [ 85.962250][ T9071] IPVS: ftp: loaded support on port[0] = 21 executing program [ 85.999502][ T9073] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 86.041053][ T9075] IPVS: ftp: loaded support on port[0] = 21 [ 86.077698][ T9077] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 86.114956][ T9079] IPVS: ftp: loaded support on port[0] = 21 [ 86.152560][ T9081] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 86.189233][ T9083] IPVS: ftp: loaded support on port[0] = 21 [ 86.225804][ T9085] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 86.263101][ T9087] IPVS: ftp: loaded support on port[0] = 21 [ 86.296235][ T9089] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 86.345496][ T9091] IPVS: ftp: loaded support on port[0] = 21 [ 86.379944][ T9093] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 86.411616][ T9095] IPVS: ftp: loaded support on port[0] = 21 [ 86.445385][ T9097] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 86.477171][ T9099] IPVS: ftp: loaded support on port[0] = 21 [ 86.513830][ T9101] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 86.547805][ T9103] IPVS: ftp: loaded support on port[0] = 21 [ 86.580192][ T9105] IPVS: ftp: loaded support on port[0] = 21 executing program [ 86.611877][ T9107] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 86.653599][ T9109] IPVS: ftp: loaded support on port[0] = 21 [ 86.686360][ T9111] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 86.718039][ T9113] IPVS: ftp: loaded support on port[0] = 21 [ 86.750439][ T9115] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 86.780562][ T9117] IPVS: ftp: loaded support on port[0] = 21 [ 86.811910][ T9119] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 86.843630][ T9121] IPVS: ftp: loaded support on port[0] = 21 [ 86.877107][ T9123] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 86.909244][ T9125] IPVS: ftp: loaded support on port[0] = 21 [ 86.940435][ T9127] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 86.972723][ T9129] IPVS: ftp: loaded support on port[0] = 21 [ 87.003844][ T9131] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 87.035956][ T9133] IPVS: ftp: loaded support on port[0] = 21 [ 87.069224][ T9135] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 87.103207][ T9137] IPVS: ftp: loaded support on port[0] = 21 [ 87.135743][ T9139] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 87.167569][ T9141] IPVS: ftp: loaded support on port[0] = 21 [ 87.198217][ T9143] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 87.230209][ T9145] IPVS: ftp: loaded support on port[0] = 21 [ 87.261680][ T9147] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 87.293369][ T9149] IPVS: ftp: loaded support on port[0] = 21 [ 87.324873][ T9151] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 87.357345][ T9153] IPVS: ftp: loaded support on port[0] = 21 [ 87.393222][ T9155] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 87.429509][ T9157] IPVS: ftp: loaded support on port[0] = 21 [ 87.463528][ T9159] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 87.498627][ T9161] IPVS: ftp: loaded support on port[0] = 21 [ 87.534531][ T9163] IPVS: ftp: loaded support on port[0] = 21 executing program [ 87.570581][ T9165] IPVS: ftp: loaded support on port[0] = 21 [ 87.607138][ T9167] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program [ 87.642944][ T9169] IPVS: ftp: loaded support on port[0] = 21 [ 87.677935][ T9171] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 87.714216][ T9173] IPVS: ftp: loaded support on port[0] = 21 [ 87.750438][ T9175] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 87.786029][ T9177] IPVS: ftp: loaded support on port[0] = 21 [ 87.822361][ T9179] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 87.857413][ T9181] IPVS: ftp: loaded support on port[0] = 21 [ 87.894180][ T9183] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 87.929481][ T9185] IPVS: ftp: loaded support on port[0] = 21 [ 87.965005][ T9187] IPVS: ftp: loaded support on port[0] = 21 [ 88.001972][ T9189] IPVS: ftp: loaded support on port[0] = 21 executing program [ 88.100264][ T9191] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 88.200043][ T9193] IPVS: ftp: loaded support on port[0] = 21 [ 88.256755][ T9195] IPVS: ftp: loaded support on port[0] = 21 executing program [ 88.338076][ T9197] IPVS: ftp: loaded support on port[0] = 21 executing program [ 88.455082][ T9199] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 88.547094][ T9201] IPVS: ftp: loaded support on port[0] = 21 [ 88.598701][ T9203] IPVS: ftp: loaded support on port[0] = 21 executing program [ 88.698985][ T9205] IPVS: ftp: loaded support on port[0] = 21 executing program [ 88.809161][ T9207] IPVS: ftp: loaded support on port[0] = 21 executing program [ 88.897394][ T9209] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 88.986904][ T9211] IPVS: ftp: loaded support on port[0] = 21 [ 89.033643][ T9213] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 89.134217][ T9215] IPVS: ftp: loaded support on port[0] = 21 [ 89.180621][ T9218] IPVS: ftp: loaded support on port[0] = 21 [ 89.741723][ T9218] kasan: CONFIG_KASAN_INLINE enabled [ 89.747126][ T9218] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 89.755387][ T9218] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 89.762324][ T9218] CPU: 0 PID: 9218 Comm: syz-executor721 Not tainted 5.2.0-rc5-next-20190620 #19 [ 89.771402][ T9218] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 89.781463][ T9218] RIP: 0010:ovs_ct_exit+0x1ac/0x4ec [ 89.786648][ T9218] 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 [ 89.806245][ T9218] RSP: 0018:ffff888099cc7b10 EFLAGS: 00010206 [ 89.812302][ T9218] RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 1ffff110136aadf0 [ 89.820252][ T9218] RDX: 000000000000000a RSI: 1ffff110136aadf7 RDI: 0000000000000282 [ 89.828320][ T9218] RBP: ffff888099cc7b50 R08: ffff88809b556700 R09: 0000000000000002 [ 89.836291][ T9218] R10: fffffbfff13429cf R11: ffffffff89a14e7f R12: 0000000000000000 [ 89.844242][ T9218] R13: ffff8880a0330180 R14: ffff88809991fb40 R15: dffffc0000000000 [ 89.852195][ T9218] FS: 00007f8b240a9700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 89.861115][ T9218] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 89.867697][ T9218] CR2: 00000000004cc870 CR3: 00000000a0885000 CR4: 00000000001406f0 [ 89.875664][ T9218] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 89.883630][ T9218] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 89.891580][ T9218] Call Trace: [ 89.894855][ T9218] ? kasan_check_read+0x11/0x20 [ 89.899689][ T9218] ovs_exit_net+0x1f8/0xc30 [ 89.904174][ T9218] ? synchronize_rcu.part.0+0xcf/0xe0 [ 89.909525][ T9218] ? kfree_call_rcu+0x10/0x10 [ 89.914195][ T9218] ? ovs_dp_cmd_del+0x270/0x270 [ 89.919028][ T9218] ? ovs_dp_cmd_del+0x270/0x270 [ 89.923859][ T9218] ops_exit_list.isra.0+0xaa/0x150 [ 89.928952][ T9218] setup_net+0x518/0x870 [ 89.933175][ T9218] ? ops_init+0x410/0x410 [ 89.937489][ T9218] ? kasan_check_write+0x14/0x20 [ 89.942417][ T9218] ? down_read_killable+0x51/0x220 [ 89.947507][ T9218] copy_net_ns+0x1df/0x340 [ 89.951931][ T9218] create_new_namespaces+0x400/0x7b0 [ 89.957201][ T9218] unshare_nsproxy_namespaces+0xc2/0x200 [ 89.962816][ T9218] ksys_unshare+0x444/0x980 [ 89.967299][ T9218] ? walk_process_tree+0x2c0/0x2c0 [ 89.972386][ T9218] ? up_read+0xc4/0x200 [ 89.976610][ T9218] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 89.982059][ T9218] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 89.988102][ T9218] ? do_syscall_64+0x26/0x6a0 [ 89.992765][ T9218] ? lockdep_hardirqs_on+0x418/0x5d0 [ 89.998034][ T9218] __x64_sys_unshare+0x31/0x40 [ 90.002783][ T9218] do_syscall_64+0xfd/0x6a0 [ 90.007282][ T9218] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 90.013154][ T9218] RIP: 0033:0x4465f9 [ 90.017051][ T9218] 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 [ 90.036643][ T9218] RSP: 002b:00007f8b240a8db8 EFLAGS: 00000246 ORIG_RAX: 0000000000000110 [ 90.045038][ T9218] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 00000000004465f9 [ 90.053009][ T9218] RDX: 0000000000402634 RSI: 4cd358343e0f8c59 RDI: 0000000060000000 [ 90.060967][ T9218] RBP: 00000000006dbc20 R08: 00007f8b240a9700 R09: 0000000000000000 [ 90.068919][ T9218] R10: 00007f8b240a9700 R11: 0000000000000246 R12: 00000000006dbc2c [ 90.076887][ T9218] R13: 00007ffe86c3633f R14: 00007f8b240a99c0 R15: 0000000000000000 [ 90.084841][ T9218] Modules linked in: [ 90.089520][ T9218] ---[ end trace 24b4fd2d9be6598e ]--- [ 90.095027][ T9218] RIP: 0010:ovs_ct_exit+0x1ac/0x4ec [ 90.100222][ T9218] 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 [ 90.119964][ T9218] RSP: 0018:ffff888099cc7b10 EFLAGS: 00010206 [ 90.126074][ T9218] RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 1ffff110136aadf0 [ 90.134316][ T9218] RDX: 000000000000000a RSI: 1ffff110136aadf7 RDI: 0000000000000282 [ 90.142329][ T9218] RBP: ffff888099cc7b50 R08: ffff88809b556700 R09: 0000000000000002 [ 90.150292][ T9218] R10: fffffbfff13429cf R11: ffffffff89a14e7f R12: 0000000000000000 [ 90.158284][ T9218] R13: ffff8880a0330180 R14: ffff88809991fb40 R15: dffffc0000000000 [ 90.166297][ T9218] FS: 00007f8b240a9700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 90.175240][ T9218] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 90.181837][ T9218] CR2: 00000000004cc870 CR3: 00000000a0885000 CR4: 00000000001406f0 [ 90.195509][ T9218] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 90.203580][ T9218] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 90.211872][ T9218] Kernel panic - not syncing: Fatal exception [ 90.218959][ T9218] Kernel Offset: disabled [ 90.223280][ T9218] Rebooting in 86400 seconds..