[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 60.661343][ T26] audit: type=1800 audit(1560985062.162:25): pid=8744 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 60.707023][ T26] audit: type=1800 audit(1560985062.162:26): pid=8744 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 60.752305][ T26] audit: type=1800 audit(1560985062.172:27): pid=8744 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 '10.128.0.18' (ECDSA) to the list of known hosts. executing program executing program executing program syzkaller login: [ 83.400266][ T8899] IPVS: ftp: loaded support on port[0] = 21 [ 83.438035][ T8901] IPVS: ftp: loaded support on port[0] = 21 executing program [ 83.474065][ T8903] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 83.519386][ T8905] IPVS: ftp: loaded support on port[0] = 21 [ 83.556875][ T8907] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 83.591810][ T8909] IPVS: ftp: loaded support on port[0] = 21 [ 83.627960][ T8911] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 83.664282][ T8913] IPVS: ftp: loaded support on port[0] = 21 [ 83.701941][ T8915] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 83.741459][ T8917] IPVS: ftp: loaded support on port[0] = 21 [ 83.775623][ T8919] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 83.812126][ T8921] IPVS: ftp: loaded support on port[0] = 21 [ 83.846115][ T8923] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 83.882353][ T8925] IPVS: ftp: loaded support on port[0] = 21 [ 83.919538][ T8927] IPVS: ftp: loaded support on port[0] = 21 executing program [ 83.954476][ T8929] IPVS: ftp: loaded support on port[0] = 21 [ 83.988651][ T8931] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 84.075829][ T8934] IPVS: ftp: loaded support on port[0] = 21 executing program [ 84.136161][ T8936] IPVS: ftp: loaded support on port[0] = 21 executing program [ 84.196907][ T8938] IPVS: ftp: loaded support on port[0] = 21 executing program [ 84.260606][ T8940] IPVS: ftp: loaded support on port[0] = 21 executing program [ 84.321824][ T8942] IPVS: ftp: loaded support on port[0] = 21 executing program [ 84.382585][ T8944] IPVS: ftp: loaded support on port[0] = 21 executing program [ 84.442622][ T8946] IPVS: ftp: loaded support on port[0] = 21 executing program [ 84.504281][ T8948] IPVS: ftp: loaded support on port[0] = 21 executing program [ 84.564938][ T8950] IPVS: ftp: loaded support on port[0] = 21 executing program [ 84.625324][ T8952] IPVS: ftp: loaded support on port[0] = 21 executing program [ 84.688822][ T8954] IPVS: ftp: loaded support on port[0] = 21 executing program [ 84.748224][ T8956] IPVS: ftp: loaded support on port[0] = 21 executing program [ 84.811077][ T8958] IPVS: ftp: loaded support on port[0] = 21 executing program [ 84.871511][ T8960] IPVS: ftp: loaded support on port[0] = 21 executing program [ 84.932227][ T8962] IPVS: ftp: loaded support on port[0] = 21 executing program [ 84.978791][ T8964] IPVS: ftp: loaded support on port[0] = 21 executing program [ 85.039655][ T8966] IPVS: ftp: loaded support on port[0] = 21 executing program [ 85.095482][ T8968] IPVS: ftp: loaded support on port[0] = 21 executing program [ 85.160290][ T8970] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 85.203239][ T8972] IPVS: ftp: loaded support on port[0] = 21 [ 85.237298][ T8974] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 85.278038][ T8976] IPVS: ftp: loaded support on port[0] = 21 [ 85.314611][ T8978] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 85.347294][ T8980] IPVS: ftp: loaded support on port[0] = 21 [ 85.380151][ T8982] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 85.414210][ T8984] IPVS: ftp: loaded support on port[0] = 21 [ 85.448563][ T8986] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 85.482310][ T8988] IPVS: ftp: loaded support on port[0] = 21 [ 85.515533][ T8990] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 85.548302][ T8992] IPVS: ftp: loaded support on port[0] = 21 [ 85.582093][ T8994] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 85.615392][ T8996] IPVS: ftp: loaded support on port[0] = 21 [ 85.649942][ T8998] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 85.682645][ T9000] IPVS: ftp: loaded support on port[0] = 21 [ 85.716240][ T9002] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 85.750069][ T9004] IPVS: ftp: loaded support on port[0] = 21 [ 85.783285][ T9006] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 85.816514][ T9008] IPVS: ftp: loaded support on port[0] = 21 [ 85.850898][ T9010] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 85.884262][ T9012] IPVS: ftp: loaded support on port[0] = 21 [ 85.918589][ T9014] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 85.949949][ T9016] IPVS: ftp: loaded support on port[0] = 21 [ 85.984323][ T9018] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 86.017728][ T9020] IPVS: ftp: loaded support on port[0] = 21 [ 86.050609][ T9022] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 86.084463][ T9024] IPVS: ftp: loaded support on port[0] = 21 [ 86.119070][ T9026] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 86.152765][ T9028] IPVS: ftp: loaded support on port[0] = 21 [ 86.187741][ T9030] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 86.221519][ T9032] IPVS: ftp: loaded support on port[0] = 21 [ 86.255401][ T9034] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 86.290028][ T9036] IPVS: ftp: loaded support on port[0] = 21 [ 86.323322][ T9038] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 86.359187][ T9040] IPVS: ftp: loaded support on port[0] = 21 [ 86.394667][ T9042] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 86.429631][ T9044] IPVS: ftp: loaded support on port[0] = 21 [ 86.463356][ T9046] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 86.496673][ T9048] IPVS: ftp: loaded support on port[0] = 21 [ 86.530854][ T9050] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 86.564301][ T9052] IPVS: ftp: loaded support on port[0] = 21 [ 86.599080][ T9054] IPVS: ftp: loaded support on port[0] = 21 [ 86.653544][ T9056] IPVS: ftp: loaded support on port[0] = 21 executing program [ 86.721309][ T9058] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 86.809495][ T9060] IPVS: ftp: loaded support on port[0] = 21 [ 86.859732][ T9062] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 86.940617][ T9064] IPVS: ftp: loaded support on port[0] = 21 [ 86.991758][ T9066] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 87.068049][ T9068] IPVS: ftp: loaded support on port[0] = 21 [ 87.113497][ T9070] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 87.199111][ T9072] IPVS: ftp: loaded support on port[0] = 21 [ 87.245590][ T9074] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 87.341250][ T9076] IPVS: ftp: loaded support on port[0] = 21 [ 87.385306][ T9078] IPVS: ftp: loaded support on port[0] = 21 executing program [ 87.484049][ T9080] IPVS: ftp: loaded support on port[0] = 21 executing program [ 87.563548][ T9082] IPVS: ftp: loaded support on port[0] = 21 executing program [ 87.644953][ T9084] IPVS: ftp: loaded support on port[0] = 21 executing program [ 87.745681][ T9086] IPVS: ftp: loaded support on port[0] = 21 [ 88.197052][ T9086] kasan: CONFIG_KASAN_INLINE enabled [ 88.202601][ T9086] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 88.210799][ T9086] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 88.217750][ T9086] CPU: 1 PID: 9086 Comm: syz-executor070 Not tainted 5.2.0-rc5+ #39 [ 88.225821][ T9086] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 88.235960][ T9086] RIP: 0010:ovs_ct_exit+0x1ac/0x4ec [ 88.241163][ T9086] Code: 01 00 00 00 48 c7 c7 00 37 da 88 e8 8e bf 44 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 [ 88.260892][ T9086] RSP: 0018:ffff88807f537b10 EFLAGS: 00010206 [ 88.266958][ T9086] RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 1ffff1101111492e [ 88.275121][ T9086] RDX: 000000000000000a RSI: 1ffff11011114935 RDI: 0000000000000282 [ 88.283098][ T9086] RBP: ffff88807f537b50 R08: ffff8880888a4100 R09: 0000000000000002 [ 88.291064][ T9086] R10: ffffed1015d26c77 R11: ffff8880ae9363bb R12: 0000000000000000 [ 88.299046][ T9086] R13: ffff88809728a100 R14: ffff888092409240 R15: dffffc0000000000 [ 88.307012][ T9086] FS: 00007fb2bf525700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 88.315948][ T9086] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 88.322517][ T9086] CR2: 00000000004cc870 CR3: 00000000956e1000 CR4: 00000000001406e0 [ 88.330564][ T9086] Call Trace: [ 88.333855][ T9086] ? kasan_check_read+0x11/0x20 [ 88.338738][ T9086] ovs_exit_net+0x1f8/0xc30 [ 88.343251][ T9086] ? synchronize_rcu.part.0+0xcf/0xe0 [ 88.348624][ T9086] ? kfree_call_rcu+0x10/0x10 [ 88.353293][ T9086] ? ovs_dp_cmd_del+0x270/0x270 [ 88.358132][ T9086] ? ovs_dp_cmd_del+0x270/0x270 [ 88.363011][ T9086] ops_exit_list.isra.0+0xaa/0x150 [ 88.368408][ T9086] setup_net+0x518/0x870 [ 88.372744][ T9086] ? ops_init+0x410/0x410 [ 88.377084][ T9086] ? kasan_check_write+0x14/0x20 [ 88.382041][ T9086] ? down_read_killable+0x51/0x220 [ 88.387185][ T9086] copy_net_ns+0x1df/0x340 [ 88.391600][ T9086] create_new_namespaces+0x400/0x7b0 [ 88.396884][ T9086] unshare_nsproxy_namespaces+0xc2/0x200 [ 88.402504][ T9086] ksys_unshare+0x440/0x980 [ 88.406993][ T9086] ? walk_process_tree+0x2c0/0x2c0 [ 88.412083][ T9086] ? up_read+0xc4/0x200 [ 88.416223][ T9086] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 88.421680][ T9086] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 88.427734][ T9086] ? do_syscall_64+0x26/0x680 [ 88.432393][ T9086] ? lockdep_hardirqs_on+0x418/0x5d0 [ 88.438082][ T9086] __x64_sys_unshare+0x31/0x40 [ 88.442919][ T9086] do_syscall_64+0xfd/0x680 [ 88.447406][ T9086] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 88.453282][ T9086] RIP: 0033:0x4465f9 [ 88.457168][ T9086] 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 [ 88.476783][ T9086] RSP: 002b:00007fb2bf524db8 EFLAGS: 00000246 ORIG_RAX: 0000000000000110 [ 88.485339][ T9086] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 00000000004465f9 [ 88.493316][ T9086] RDX: 0000000000402634 RSI: 97ca39dc657f2deb RDI: 0000000044000000 [ 88.501273][ T9086] RBP: 00000000006dbc20 R08: 00007fb2bf525700 R09: 0000000000000000 [ 88.509223][ T9086] R10: 00007fb2bf525700 R11: 0000000000000246 R12: 00000000006dbc2c [ 88.517523][ T9086] R13: 00007ffe3f632c1f R14: 00007fb2bf5259c0 R15: 0000000000000000 [ 88.525485][ T9086] Modules linked in: [ 88.530594][ T9086] ---[ end trace e1846ce4f3d88378 ]--- [ 88.536165][ T9086] RIP: 0010:ovs_ct_exit+0x1ac/0x4ec [ 88.541403][ T9086] Code: 01 00 00 00 48 c7 c7 00 37 da 88 e8 8e bf 44 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 [ 88.561161][ T9086] RSP: 0018:ffff88807f537b10 EFLAGS: 00010206 [ 88.567247][ T9086] RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 1ffff1101111492e [ 88.575223][ T9086] RDX: 000000000000000a RSI: 1ffff11011114935 RDI: 0000000000000282 [ 88.583314][ T9086] RBP: ffff88807f537b50 R08: ffff8880888a4100 R09: 0000000000000002 [ 88.591332][ T9086] R10: ffffed1015d26c77 R11: ffff8880ae9363bb R12: 0000000000000000 [ 88.599425][ T9086] R13: ffff88809728a100 R14: ffff888092409240 R15: dffffc0000000000 [ 88.607448][ T9086] FS: 00007fb2bf525700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 88.616402][ T9086] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 88.623032][ T9086] CR2: 00000000004cc870 CR3: 00000000956e1000 CR4: 00000000001406e0 [ 88.631039][ T9086] Kernel panic - not syncing: Fatal exception [ 88.638320][ T9086] Kernel Offset: disabled [ 88.642672][ T9086] Rebooting in 86400 seconds..