[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 74.703900][ T26] audit: type=1800 audit(1561249987.171:25): pid=8790 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 74.747825][ T26] audit: type=1800 audit(1561249987.171:26): pid=8790 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 74.788297][ T26] audit: type=1800 audit(1561249987.171:27): pid=8790 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 '10.128.1.25' (ECDSA) to the list of known hosts. executing program executing program executing program syzkaller login: [ 103.186706][ T8944] IPVS: ftp: loaded support on port[0] = 21 [ 103.223445][ T8946] IPVS: ftp: loaded support on port[0] = 21 executing program [ 103.260842][ T8948] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 103.305396][ T8950] IPVS: ftp: loaded support on port[0] = 21 [ 103.340283][ T8952] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 103.378045][ T8954] IPVS: ftp: loaded support on port[0] = 21 [ 103.417063][ T8956] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 103.456740][ T8958] IPVS: ftp: loaded support on port[0] = 21 [ 103.495431][ T8960] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 103.534412][ T8962] IPVS: ftp: loaded support on port[0] = 21 [ 103.572771][ T8964] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 103.610695][ T8966] IPVS: ftp: loaded support on port[0] = 21 [ 103.646914][ T8968] IPVS: ftp: loaded support on port[0] = 21 executing program [ 103.688189][ T8970] IPVS: ftp: loaded support on port[0] = 21 [ 103.723304][ T8972] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 103.810141][ T8975] IPVS: ftp: loaded support on port[0] = 21 executing program [ 103.873809][ T8977] IPVS: ftp: loaded support on port[0] = 21 executing program [ 103.935367][ T8979] IPVS: ftp: loaded support on port[0] = 21 executing program [ 103.996425][ T8981] IPVS: ftp: loaded support on port[0] = 21 executing program [ 104.061280][ T8983] IPVS: ftp: loaded support on port[0] = 21 executing program [ 104.122963][ T8985] IPVS: ftp: loaded support on port[0] = 21 executing program [ 104.183247][ T8987] IPVS: ftp: loaded support on port[0] = 21 executing program [ 104.241661][ T8989] IPVS: ftp: loaded support on port[0] = 21 executing program [ 104.300299][ T8991] IPVS: ftp: loaded support on port[0] = 21 executing program [ 104.359212][ T8993] IPVS: ftp: loaded support on port[0] = 21 executing program [ 104.418871][ T8995] IPVS: ftp: loaded support on port[0] = 21 executing program [ 104.465627][ T8997] IPVS: ftp: loaded support on port[0] = 21 executing program [ 104.524514][ T8999] IPVS: ftp: loaded support on port[0] = 21 executing program [ 104.585233][ T9001] IPVS: ftp: loaded support on port[0] = 21 executing program [ 104.632239][ T9003] IPVS: ftp: loaded support on port[0] = 21 executing program [ 104.691780][ T9005] IPVS: ftp: loaded support on port[0] = 21 executing program [ 104.749852][ T9007] IPVS: ftp: loaded support on port[0] = 21 executing program [ 104.808614][ T9009] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 104.860785][ T9011] IPVS: ftp: loaded support on port[0] = 21 [ 104.898910][ T9013] IPVS: ftp: loaded support on port[0] = 21 executing program [ 104.934919][ T9015] IPVS: ftp: loaded support on port[0] = 21 executing program [ 104.994274][ T9017] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 105.052296][ T9019] IPVS: ftp: loaded support on port[0] = 21 [ 105.088119][ T9021] IPVS: ftp: loaded support on port[0] = 21 executing program [ 105.124127][ T9023] IPVS: ftp: loaded support on port[0] = 21 executing program [ 105.181675][ T9025] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 105.235461][ T9027] IPVS: ftp: loaded support on port[0] = 21 [ 105.271367][ T9029] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 105.315256][ T9031] IPVS: ftp: loaded support on port[0] = 21 [ 105.352350][ T9033] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 105.387031][ T9035] IPVS: ftp: loaded support on port[0] = 21 [ 105.421053][ T9037] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 105.456781][ T9039] IPVS: ftp: loaded support on port[0] = 21 [ 105.492781][ T9041] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 105.528010][ T9043] IPVS: ftp: loaded support on port[0] = 21 [ 105.562334][ T9045] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 105.598786][ T9047] IPVS: ftp: loaded support on port[0] = 21 [ 105.634007][ T9049] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 105.668702][ T9051] IPVS: ftp: loaded support on port[0] = 21 [ 105.703444][ T9053] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 105.738983][ T9055] IPVS: ftp: loaded support on port[0] = 21 [ 105.774574][ T9057] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 105.809983][ T9059] IPVS: ftp: loaded support on port[0] = 21 [ 105.845421][ T9061] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 105.880572][ T9063] IPVS: ftp: loaded support on port[0] = 21 [ 105.916722][ T9065] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 105.951492][ T9067] IPVS: ftp: loaded support on port[0] = 21 [ 105.988589][ T9069] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 106.023624][ T9071] IPVS: ftp: loaded support on port[0] = 21 [ 106.059295][ T9073] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 106.095011][ T9075] IPVS: ftp: loaded support on port[0] = 21 [ 106.131328][ T9077] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 106.168060][ T9079] IPVS: ftp: loaded support on port[0] = 21 [ 106.204333][ T9081] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 106.240348][ T9083] IPVS: ftp: loaded support on port[0] = 21 [ 106.275826][ T9085] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 106.311757][ T9087] IPVS: ftp: loaded support on port[0] = 21 [ 106.347999][ T9089] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 106.383671][ T9091] IPVS: ftp: loaded support on port[0] = 21 [ 106.419107][ T9093] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 106.456650][ T9095] IPVS: ftp: loaded support on port[0] = 21 [ 106.492553][ T9097] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 106.527405][ T9099] IPVS: ftp: loaded support on port[0] = 21 [ 106.564731][ T9101] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 106.601149][ T9103] IPVS: ftp: loaded support on port[0] = 21 [ 106.636823][ T9105] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 106.672059][ T9107] IPVS: ftp: loaded support on port[0] = 21 [ 106.708996][ T9109] IPVS: ftp: loaded support on port[0] = 21 executing program [ 106.744377][ T9111] IPVS: ftp: loaded support on port[0] = 21 [ 106.780095][ T9113] IPVS: ftp: loaded support on port[0] = 21 executing program [ 106.893034][ T9115] IPVS: ftp: loaded support on port[0] = 21 executing program [ 107.005993][ T9117] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 107.100610][ T9119] IPVS: ftp: loaded support on port[0] = 21 [ 107.153732][ T9121] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 107.237129][ T9123] IPVS: ftp: loaded support on port[0] = 21 [ 107.306283][ T9125] IPVS: ftp: loaded support on port[0] = 21 executing program [ 107.376793][ T9127] IPVS: ftp: loaded support on port[0] = 21 executing program [ 107.497389][ T9129] IPVS: ftp: loaded support on port[0] = 21 executing program [ 107.612518][ T9131] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 107.709168][ T9133] IPVS: ftp: loaded support on port[0] = 21 [ 107.762959][ T9135] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 107.844168][ T9137] IPVS: ftp: loaded support on port[0] = 21 [ 107.925679][ T9139] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 107.996460][ T9141] IPVS: ftp: loaded support on port[0] = 21 [ 108.044212][ T9143] IPVS: ftp: loaded support on port[0] = 21 [ 108.497651][ T9143] kasan: CONFIG_KASAN_INLINE enabled [ 108.503235][ T9143] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 108.511408][ T9143] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 108.518349][ T9143] CPU: 0 PID: 9143 Comm: syz-executor076 Not tainted 5.2.0-rc5-next-20190620 #19 [ 108.527427][ T9143] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 108.537491][ T9143] RIP: 0010:ovs_ct_exit+0x1ac/0x4ec [ 108.542687][ T9143] 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 [ 108.562278][ T9143] RSP: 0018:ffff88808662fb10 EFLAGS: 00010206 [ 108.568400][ T9143] RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 1ffff11010e16d80 [ 108.576364][ T9143] RDX: 000000000000000a RSI: 1ffff11010e16d87 RDI: 0000000000000282 [ 108.584315][ T9143] RBP: ffff88808662fb50 R08: ffff8880870b6380 R09: 0000000000000002 [ 108.592273][ T9143] R10: fffffbfff13429cf R11: ffffffff89a14e7f R12: 0000000000000000 [ 108.600251][ T9143] R13: ffff8880a4382280 R14: ffff8880a6549680 R15: dffffc0000000000 [ 108.608207][ T9143] FS: 00007f393f183700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 108.617113][ T9143] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 108.623683][ T9143] CR2: 00000000004cc870 CR3: 00000000a028b000 CR4: 00000000001406f0 [ 108.631643][ T9143] Call Trace: [ 108.634915][ T9143] ? kasan_check_read+0x11/0x20 [ 108.639772][ T9143] ovs_exit_net+0x1f8/0xc30 [ 108.644280][ T9143] ? synchronize_rcu.part.0+0xcf/0xe0 [ 108.649640][ T9143] ? kfree_call_rcu+0x10/0x10 [ 108.654300][ T9143] ? ovs_dp_cmd_del+0x270/0x270 [ 108.659135][ T9143] ? ovs_dp_cmd_del+0x270/0x270 [ 108.663973][ T9143] ops_exit_list.isra.0+0xaa/0x150 [ 108.669063][ T9143] setup_net+0x518/0x870 [ 108.673287][ T9143] ? ops_init+0x410/0x410 [ 108.677602][ T9143] ? kasan_check_write+0x14/0x20 [ 108.682520][ T9143] ? down_read_killable+0x51/0x220 [ 108.687700][ T9143] copy_net_ns+0x1df/0x340 [ 108.692499][ T9143] create_new_namespaces+0x400/0x7b0 [ 108.697813][ T9143] unshare_nsproxy_namespaces+0xc2/0x200 [ 108.703444][ T9143] ksys_unshare+0x444/0x980 [ 108.707944][ T9143] ? walk_process_tree+0x2c0/0x2c0 [ 108.713033][ T9143] ? up_read+0xc4/0x200 [ 108.717169][ T9143] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 108.722608][ T9143] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 108.728652][ T9143] ? do_syscall_64+0x26/0x6a0 [ 108.733319][ T9143] ? lockdep_hardirqs_on+0x418/0x5d0 [ 108.738595][ T9143] __x64_sys_unshare+0x31/0x40 [ 108.743355][ T9143] do_syscall_64+0xfd/0x6a0 [ 108.747842][ T9143] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 108.753724][ T9143] RIP: 0033:0x4465f9 [ 108.757600][ T9143] 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 [ 108.777210][ T9143] RSP: 002b:00007f393f182db8 EFLAGS: 00000246 ORIG_RAX: 0000000000000110 [ 108.785695][ T9143] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 00000000004465f9 [ 108.793653][ T9143] RDX: 0000000000402634 RSI: 23618710efa3b73e RDI: 0000000040000600 [ 108.801613][ T9143] RBP: 00000000006dbc20 R08: 00007f393f183700 R09: 0000000000000000 [ 108.809594][ T9143] R10: 00007f393f183700 R11: 0000000000000246 R12: 00000000006dbc2c [ 108.817561][ T9143] R13: 00007ffc563b8e4f R14: 00007f393f1839c0 R15: 0000000000000000 [ 108.825870][ T9143] Modules linked in: [ 108.831216][ T9143] ---[ end trace 7fcd949ee9559165 ]--- [ 108.836721][ T9143] RIP: 0010:ovs_ct_exit+0x1ac/0x4ec [ 108.841979][ T9143] 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 [ 108.861668][ T9143] RSP: 0018:ffff88808662fb10 EFLAGS: 00010206 [ 108.867858][ T9143] RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 1ffff11010e16d80 [ 108.875862][ T9143] RDX: 000000000000000a RSI: 1ffff11010e16d87 RDI: 0000000000000282 [ 108.883912][ T9143] RBP: ffff88808662fb50 R08: ffff8880870b6380 R09: 0000000000000002 [ 108.891987][ T9143] R10: fffffbfff13429cf R11: ffffffff89a14e7f R12: 0000000000000000 [ 108.900006][ T9143] R13: ffff8880a4382280 R14: ffff8880a6549680 R15: dffffc0000000000 [ 108.908023][ T9143] FS: 00007f393f183700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 108.916979][ T9143] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 108.923612][ T9143] CR2: 00000000004b4ca0 CR3: 00000000a028b000 CR4: 00000000001406e0 [ 108.931641][ T9143] Kernel panic - not syncing: Fatal exception [ 108.938633][ T9143] Kernel Offset: disabled [ 108.942956][ T9143] Rebooting in 86400 seconds..