[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 68.423778][ T26] audit: type=1800 audit(1561321851.178:25): pid=8807 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 68.468962][ T26] audit: type=1800 audit(1561321851.178:26): pid=8807 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 68.509906][ T26] audit: type=1800 audit(1561321851.178:27): pid=8807 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 '10.128.0.100' (ECDSA) to the list of known hosts. executing program executing program executing program syzkaller login: [ 90.288866][ T8962] IPVS: ftp: loaded support on port[0] = 21 [ 90.325090][ T8964] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 90.358840][ T8966] IPVS: ftp: loaded support on port[0] = 21 [ 90.392490][ T8968] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 90.435934][ T8970] IPVS: ftp: loaded support on port[0] = 21 [ 90.471419][ T8972] IPVS: ftp: loaded support on port[0] = 21 executing program [ 90.505989][ T8974] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 90.581790][ T8976] IPVS: ftp: loaded support on port[0] = 21 [ 90.622451][ T8978] IPVS: ftp: loaded support on port[0] = 21 executing program [ 90.658113][ T8980] IPVS: ftp: loaded support on port[0] = 21 executing program [ 90.699168][ T8982] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 90.750453][ T8984] IPVS: ftp: loaded support on port[0] = 21 [ 90.782974][ T8986] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 90.827870][ T8988] IPVS: ftp: loaded support on port[0] = 21 [ 90.864412][ T8990] IPVS: ftp: loaded support on port[0] = 21 executing program [ 90.901172][ T8992] IPVS: ftp: loaded support on port[0] = 21 [ 90.934153][ T8994] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program [ 91.013163][ T8996] IPVS: ftp: loaded support on port[0] = 21 [ 91.043269][ T8998] IPVS: ftp: loaded support on port[0] = 21 executing program [ 91.074199][ T9000] IPVS: ftp: loaded support on port[0] = 21 executing program [ 91.120234][ T9002] IPVS: ftp: loaded support on port[0] = 21 [ 91.158667][ T9004] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 91.214792][ T9006] IPVS: ftp: loaded support on port[0] = 21 executing program [ 91.272179][ T9008] IPVS: ftp: loaded support on port[0] = 21 executing program [ 91.328473][ T9010] IPVS: ftp: loaded support on port[0] = 21 executing program [ 91.385033][ T9012] IPVS: ftp: loaded support on port[0] = 21 executing program [ 91.443895][ T9014] IPVS: ftp: loaded support on port[0] = 21 executing program [ 91.506420][ T9016] IPVS: ftp: loaded support on port[0] = 21 executing program [ 91.570684][ T9018] IPVS: ftp: loaded support on port[0] = 21 executing program [ 91.635225][ T9020] IPVS: ftp: loaded support on port[0] = 21 executing program [ 91.699392][ T9022] IPVS: ftp: loaded support on port[0] = 21 executing program [ 91.762698][ T9024] IPVS: ftp: loaded support on port[0] = 21 executing program [ 91.826938][ T9026] IPVS: ftp: loaded support on port[0] = 21 executing program [ 91.892294][ T9028] IPVS: ftp: loaded support on port[0] = 21 executing program [ 91.939801][ T9030] IPVS: ftp: loaded support on port[0] = 21 executing program [ 91.997641][ T9032] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 92.060869][ T9034] IPVS: ftp: loaded support on port[0] = 21 [ 92.098465][ T9036] IPVS: ftp: loaded support on port[0] = 21 executing program [ 92.142822][ T9038] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 92.205283][ T9040] IPVS: ftp: loaded support on port[0] = 21 [ 92.243897][ T9042] IPVS: ftp: loaded support on port[0] = 21 executing program [ 92.284560][ T9044] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 92.326301][ T9046] IPVS: ftp: loaded support on port[0] = 21 [ 92.361650][ T9048] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 92.396515][ T9050] IPVS: ftp: loaded support on port[0] = 21 [ 92.432511][ T9052] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 92.466599][ T9054] IPVS: ftp: loaded support on port[0] = 21 [ 92.502523][ T9056] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 92.538747][ T9058] IPVS: ftp: loaded support on port[0] = 21 [ 92.575128][ T9060] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 92.612748][ T9062] IPVS: ftp: loaded support on port[0] = 21 [ 92.648348][ T9064] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 92.683804][ T9066] IPVS: ftp: loaded support on port[0] = 21 [ 92.716721][ T9068] IPVS: ftp: loaded support on port[0] = 21 executing program [ 92.759162][ T9070] IPVS: ftp: loaded support on port[0] = 21 executing program [ 92.866600][ T9072] IPVS: ftp: loaded support on port[0] = 21 executing program [ 92.927709][ T9074] IPVS: ftp: loaded support on port[0] = 21 executing program [ 92.988461][ T9076] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 93.032097][ T9078] IPVS: ftp: loaded support on port[0] = 21 [ 93.071863][ T9080] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 93.108061][ T9082] IPVS: ftp: loaded support on port[0] = 21 [ 93.142804][ T9084] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 93.178745][ T9086] IPVS: ftp: loaded support on port[0] = 21 [ 93.213575][ T9088] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 93.250072][ T9090] IPVS: ftp: loaded support on port[0] = 21 [ 93.285140][ T9092] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 93.324243][ T9094] IPVS: ftp: loaded support on port[0] = 21 [ 93.358765][ T9096] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 93.394950][ T9098] IPVS: ftp: loaded support on port[0] = 21 [ 93.430540][ T9100] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 93.467049][ T9102] IPVS: ftp: loaded support on port[0] = 21 [ 93.503129][ T9104] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 93.540695][ T9106] IPVS: ftp: loaded support on port[0] = 21 [ 93.577335][ T9108] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 93.611236][ T9110] IPVS: ftp: loaded support on port[0] = 21 [ 93.647538][ T9112] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 93.683277][ T9114] IPVS: ftp: loaded support on port[0] = 21 [ 93.720877][ T9116] IPVS: ftp: loaded support on port[0] = 21 [ 93.756231][ T9118] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 93.855957][ T9120] IPVS: ftp: loaded support on port[0] = 21 [ 93.915672][ T9122] IPVS: ftp: loaded support on port[0] = 21 executing program [ 93.985689][ T9124] IPVS: ftp: loaded support on port[0] = 21 executing program [ 94.085990][ T9126] IPVS: ftp: loaded support on port[0] = 21 executing program [ 94.189648][ T9128] IPVS: ftp: loaded support on port[0] = 21 executing program [ 94.280233][ T9130] IPVS: ftp: loaded support on port[0] = 21 executing program [ 94.397376][ T9132] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 94.513095][ T9134] IPVS: ftp: loaded support on port[0] = 21 [ 94.550330][ T9136] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 94.632782][ T9138] IPVS: ftp: loaded support on port[0] = 21 [ 94.680198][ T9140] IPVS: ftp: loaded support on port[0] = 21 executing program [ 94.758150][ T9142] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 94.864232][ T9144] IPVS: ftp: loaded support on port[0] = 21 [ 94.906736][ T9147] IPVS: ftp: loaded support on port[0] = 21 [ 95.311254][ T9147] kasan: CONFIG_KASAN_INLINE enabled [ 95.316736][ T9147] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 95.324945][ T9147] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 95.331903][ T9147] CPU: 0 PID: 9147 Comm: syz-executor007 Not tainted 5.2.0-rc5+ #41 [ 95.339966][ T9147] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 95.350063][ T9147] RIP: 0010:ovs_ct_exit+0x1ac/0x4ec [ 95.355279][ T9147] Code: 01 00 00 00 48 c7 c7 00 37 da 88 e8 ce 65 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 [ 95.374981][ T9147] RSP: 0018:ffff8880a4017b10 EFLAGS: 00010206 [ 95.381042][ T9147] RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 1ffff1101371e5c6 [ 95.389016][ T9147] RDX: 000000000000000a RSI: 1ffff1101371e5cd RDI: 0000000000000286 [ 95.397009][ T9147] RBP: ffff8880a4017b50 R08: ffff88809b8f25c0 R09: 0000000000000002 [ 95.404969][ T9147] R10: ffffed1015d06c77 R11: ffff8880ae8363bb R12: 0000000000000000 [ 95.412930][ T9147] R13: ffff88808ae880c0 R14: ffff88808a46c000 R15: dffffc0000000000 [ 95.420915][ T9147] FS: 00007fe370d7d700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 95.429864][ T9147] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 95.436458][ T9147] CR2: 00000000004cc870 CR3: 000000008b799000 CR4: 00000000001406f0 [ 95.444425][ T9147] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 95.452388][ T9147] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 95.460379][ T9147] Call Trace: [ 95.463692][ T9147] ? kasan_check_read+0x11/0x20 [ 95.468554][ T9147] ovs_exit_net+0x1f8/0xc30 [ 95.473069][ T9147] ? synchronize_rcu.part.0+0xcf/0xe0 [ 95.478529][ T9147] ? kfree_call_rcu+0x10/0x10 [ 95.483197][ T9147] ? ovs_dp_cmd_del+0x270/0x270 [ 95.488036][ T9147] ? ovs_dp_cmd_del+0x270/0x270 [ 95.495217][ T9147] ops_exit_list.isra.0+0xaa/0x150 [ 95.500351][ T9147] setup_net+0x518/0x870 [ 95.504589][ T9147] ? ops_init+0x410/0x410 [ 95.508908][ T9147] ? kasan_check_write+0x14/0x20 [ 95.513845][ T9147] ? down_read_killable+0x51/0x220 [ 95.518966][ T9147] copy_net_ns+0x1df/0x340 [ 95.523395][ T9147] create_new_namespaces+0x400/0x7b0 [ 95.528676][ T9147] unshare_nsproxy_namespaces+0xc2/0x200 [ 95.534334][ T9147] ksys_unshare+0x440/0x980 [ 95.538844][ T9147] ? walk_process_tree+0x2c0/0x2c0 [ 95.543940][ T9147] ? up_read+0xc4/0x200 [ 95.548110][ T9147] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 95.553552][ T9147] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 95.559602][ T9147] ? do_syscall_64+0x26/0x680 [ 95.564262][ T9147] ? lockdep_hardirqs_on+0x418/0x5d0 [ 95.569546][ T9147] __x64_sys_unshare+0x31/0x40 [ 95.574294][ T9147] do_syscall_64+0xfd/0x680 [ 95.578786][ T9147] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 95.584662][ T9147] RIP: 0033:0x4465f9 [ 95.588538][ T9147] 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 [ 95.608143][ T9147] RSP: 002b:00007fe370d7cdb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000110 [ 95.616546][ T9147] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 00000000004465f9 [ 95.624514][ T9147] RDX: 0000000000402634 RSI: a53679f4211290fc RDI: 0000000060000000 [ 95.632476][ T9147] RBP: 00000000006dbc20 R08: 00007fe370d7d700 R09: 0000000000000000 [ 95.640606][ T9147] R10: 00007fe370d7d700 R11: 0000000000000246 R12: 00000000006dbc2c [ 95.648567][ T9147] R13: 00007ffe5694eacf R14: 00007fe370d7d9c0 R15: 0000000000000000 [ 95.656529][ T9147] Modules linked in: [ 95.660867][ T9147] ---[ end trace 5fcac885642abd1e ]--- [ 95.666409][ T9147] RIP: 0010:ovs_ct_exit+0x1ac/0x4ec [ 95.671677][ T9147] Code: 01 00 00 00 48 c7 c7 00 37 da 88 e8 ce 65 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 [ 95.691449][ T9147] RSP: 0018:ffff8880a4017b10 EFLAGS: 00010206 [ 95.697512][ T9147] RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 1ffff1101371e5c6 [ 95.705623][ T9147] RDX: 000000000000000a RSI: 1ffff1101371e5cd RDI: 0000000000000286 [ 95.713648][ T9147] RBP: ffff8880a4017b50 R08: ffff88809b8f25c0 R09: 0000000000000002 [ 95.721657][ T9147] R10: ffffed1015d06c77 R11: ffff8880ae8363bb R12: 0000000000000000 [ 95.729644][ T9147] R13: ffff88808ae880c0 R14: ffff88808a46c000 R15: dffffc0000000000 [ 95.737714][ T9147] FS: 00007fe370d7d700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 95.746695][ T9147] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 95.753313][ T9147] CR2: 00000000004cc870 CR3: 000000008b799000 CR4: 00000000001406f0 [ 95.761366][ T9147] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 95.769337][ T9147] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 95.777485][ T9147] Kernel panic - not syncing: Fatal exception [ 95.784779][ T9147] Kernel Offset: disabled [ 95.789114][ T9147] Rebooting in 86400 seconds..