[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 61.216054][ T24] audit: type=1800 audit(1561225703.815:25): pid=8562 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 61.262425][ T24] audit: type=1800 audit(1561225703.815:26): pid=8562 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 61.302357][ T24] audit: type=1800 audit(1561225703.815:27): pid=8562 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 '10.128.10.1' (ECDSA) to the list of known hosts. executing program executing program executing program syzkaller login: [ 69.860695][ T8719] IPVS: ftp: loaded support on port[0] = 21 [ 69.896835][ T8721] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 69.930139][ T8723] IPVS: ftp: loaded support on port[0] = 21 [ 69.962290][ T8725] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 70.003547][ T8727] IPVS: ftp: loaded support on port[0] = 21 [ 70.040700][ T8729] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 70.079926][ T8731] IPVS: ftp: loaded support on port[0] = 21 [ 70.119544][ T8733] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 70.154456][ T8735] IPVS: ftp: loaded support on port[0] = 21 [ 70.189989][ T8737] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 70.227836][ T8739] IPVS: ftp: loaded support on port[0] = 21 [ 70.261649][ T8741] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 70.295385][ T8743] IPVS: ftp: loaded support on port[0] = 21 [ 70.329208][ T8745] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 70.364069][ T8747] IPVS: ftp: loaded support on port[0] = 21 [ 70.396555][ T8749] IPVS: ftp: loaded support on port[0] = 21 executing program [ 70.432152][ T8751] IPVS: ftp: loaded support on port[0] = 21 [ 70.466022][ T8753] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program [ 70.540525][ T8755] IPVS: ftp: loaded support on port[0] = 21 [ 70.575255][ T8757] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 70.610521][ T8759] IPVS: ftp: loaded support on port[0] = 21 [ 70.645076][ T8761] IPVS: ftp: loaded support on port[0] = 21 executing program [ 70.694606][ T8763] IPVS: ftp: loaded support on port[0] = 21 executing program [ 70.751186][ T8765] IPVS: ftp: loaded support on port[0] = 21 executing program [ 70.811351][ T8767] IPVS: ftp: loaded support on port[0] = 21 executing program [ 70.875225][ T8769] IPVS: ftp: loaded support on port[0] = 21 executing program [ 70.939858][ T8771] IPVS: ftp: loaded support on port[0] = 21 executing program [ 71.004335][ T8773] IPVS: ftp: loaded support on port[0] = 21 executing program [ 71.066353][ T8775] IPVS: ftp: loaded support on port[0] = 21 executing program [ 71.129169][ T8777] IPVS: ftp: loaded support on port[0] = 21 executing program [ 71.194490][ T8779] IPVS: ftp: loaded support on port[0] = 21 executing program [ 71.257050][ T8781] IPVS: ftp: loaded support on port[0] = 21 executing program [ 71.324555][ T8783] IPVS: ftp: loaded support on port[0] = 21 executing program [ 71.391133][ T8785] IPVS: ftp: loaded support on port[0] = 21 executing program [ 71.455178][ T8787] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 71.512858][ T8789] IPVS: ftp: loaded support on port[0] = 21 [ 71.546356][ T8791] IPVS: ftp: loaded support on port[0] = 21 executing program [ 71.598027][ T8793] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 71.651634][ T8795] IPVS: ftp: loaded support on port[0] = 21 [ 71.685766][ T8797] IPVS: ftp: loaded support on port[0] = 21 executing program [ 71.727123][ T8799] IPVS: ftp: loaded support on port[0] = 21 executing program [ 71.779583][ T8801] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 71.824387][ T8803] IPVS: ftp: loaded support on port[0] = 21 [ 71.859273][ T8805] IPVS: ftp: loaded support on port[0] = 21 executing program [ 71.892154][ T8807] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 71.935402][ T8809] IPVS: ftp: loaded support on port[0] = 21 [ 71.970437][ T8811] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 72.011061][ T8813] IPVS: ftp: loaded support on port[0] = 21 [ 72.047720][ T8815] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 72.081329][ T8817] IPVS: ftp: loaded support on port[0] = 21 [ 72.116576][ T8819] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 72.154469][ T8821] IPVS: ftp: loaded support on port[0] = 21 [ 72.188471][ T8823] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 72.222646][ T8825] IPVS: ftp: loaded support on port[0] = 21 [ 72.257881][ T8827] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 72.293129][ T8829] IPVS: ftp: loaded support on port[0] = 21 [ 72.327096][ T8831] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 72.362571][ T8833] IPVS: ftp: loaded support on port[0] = 21 [ 72.397233][ T8835] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 72.432616][ T8837] IPVS: ftp: loaded support on port[0] = 21 [ 72.466568][ T8839] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 72.502493][ T8841] IPVS: ftp: loaded support on port[0] = 21 [ 72.537882][ T8843] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 72.574264][ T8845] IPVS: ftp: loaded support on port[0] = 21 [ 72.610362][ T8847] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 72.645263][ T8849] IPVS: ftp: loaded support on port[0] = 21 [ 72.680206][ T8851] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 72.714989][ T8853] IPVS: ftp: loaded support on port[0] = 21 [ 72.751292][ T8855] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 72.785510][ T8857] IPVS: ftp: loaded support on port[0] = 21 [ 72.820783][ T8859] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 72.854788][ T8861] IPVS: ftp: loaded support on port[0] = 21 [ 72.889353][ T8863] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 72.924959][ T8865] IPVS: ftp: loaded support on port[0] = 21 [ 72.960052][ T8867] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 72.996306][ T8869] IPVS: ftp: loaded support on port[0] = 21 [ 73.031306][ T8871] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 73.066964][ T8873] IPVS: ftp: loaded support on port[0] = 21 [ 73.102332][ T8875] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 73.137962][ T8877] IPVS: ftp: loaded support on port[0] = 21 [ 73.174605][ T8879] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 73.211446][ T8881] IPVS: ftp: loaded support on port[0] = 21 [ 73.247293][ T8883] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 73.283842][ T8885] IPVS: ftp: loaded support on port[0] = 21 [ 73.318830][ T8887] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 73.352906][ T8889] IPVS: ftp: loaded support on port[0] = 21 [ 73.388272][ T8891] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 73.423774][ T8893] IPVS: ftp: loaded support on port[0] = 21 [ 73.459737][ T8895] IPVS: ftp: loaded support on port[0] = 21 [ 73.497325][ T8897] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 73.595194][ T8899] IPVS: ftp: loaded support on port[0] = 21 [ 73.647218][ T8901] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 73.732637][ T8903] IPVS: ftp: loaded support on port[0] = 21 [ 73.769875][ T8905] IPVS: ftp: loaded support on port[0] = 21 executing program [ 73.864297][ T8907] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 73.969554][ T8909] IPVS: ftp: loaded support on port[0] = 21 [ 74.041138][ T8911] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 74.111832][ T8913] IPVS: ftp: loaded support on port[0] = 21 [ 74.168434][ T8915] IPVS: ftp: loaded support on port[0] = 21 executing program [ 74.259133][ T8917] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 74.368043][ T8919] IPVS: ftp: loaded support on port[0] = 21 [ 74.417120][ T8921] IPVS: ftp: loaded support on port[0] = 21 executing program [ 74.488410][ T8923] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 74.578534][ T8925] IPVS: ftp: loaded support on port[0] = 21 [ 74.621882][ T8927] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 74.718357][ T8929] IPVS: ftp: loaded support on port[0] = 21 [ 74.762657][ T8933] IPVS: ftp: loaded support on port[0] = 21 [ 75.182392][ T8933] kasan: CONFIG_KASAN_INLINE enabled [ 75.187853][ T8933] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 75.196038][ T8933] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 75.202978][ T8933] CPU: 0 PID: 8933 Comm: syz-executor524 Not tainted 5.2.0-rc5+ #40 [ 75.211018][ T8933] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 75.221133][ T8933] RIP: 0010:ovs_ct_exit+0x1ac/0x4ec [ 75.226330][ T8933] Code: 01 00 00 00 48 c7 c7 00 37 da 88 e8 ee 76 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 [ 75.246027][ T8933] RSP: 0018:ffff8880a08cfb10 EFLAGS: 00010206 [ 75.252077][ T8933] RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 1ffff1101264b91e [ 75.260033][ T8933] RDX: 000000000000000a RSI: 1ffff1101264b925 RDI: 0000000000000282 [ 75.268006][ T8933] RBP: ffff8880a08cfb50 R08: ffff88809325c080 R09: 0000000000000002 [ 75.276048][ T8933] R10: ffffed1015d06c77 R11: ffff8880ae8363bb R12: 0000000000000000 [ 75.284013][ T8933] R13: ffff8880a1608440 R14: ffff8880926bd6c0 R15: dffffc0000000000 [ 75.291970][ T8933] FS: 00007f7b7c841700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 75.300877][ T8933] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 75.307463][ T8933] CR2: 00000000004b4ca0 CR3: 000000008f413000 CR4: 00000000001406f0 [ 75.315425][ T8933] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 75.323377][ T8933] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 75.331350][ T8933] Call Trace: [ 75.334678][ T8933] ? kasan_check_read+0x11/0x20 [ 75.339519][ T8933] ovs_exit_net+0x1f8/0xc30 [ 75.344036][ T8933] ? synchronize_rcu.part.0+0xcf/0xe0 [ 75.349389][ T8933] ? kfree_call_rcu+0x10/0x10 [ 75.354051][ T8933] ? ovs_dp_cmd_del+0x270/0x270 [ 75.359825][ T8933] ? ovs_dp_cmd_del+0x270/0x270 [ 75.364692][ T8933] ops_exit_list.isra.0+0xaa/0x150 [ 75.369812][ T8933] setup_net+0x518/0x870 [ 75.374065][ T8933] ? ops_init+0x410/0x410 [ 75.378380][ T8933] ? kasan_check_write+0x14/0x20 [ 75.383318][ T8933] ? down_read_killable+0x51/0x220 [ 75.388421][ T8933] copy_net_ns+0x1df/0x340 [ 75.392823][ T8933] create_new_namespaces+0x400/0x7b0 [ 75.398091][ T8933] unshare_nsproxy_namespaces+0xc2/0x200 [ 75.403719][ T8933] ksys_unshare+0x440/0x980 [ 75.408204][ T8933] ? walk_process_tree+0x2c0/0x2c0 [ 75.413296][ T8933] ? up_read+0xc4/0x200 [ 75.417505][ T8933] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 75.422976][ T8933] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 75.429030][ T8933] ? do_syscall_64+0x26/0x680 [ 75.433694][ T8933] ? lockdep_hardirqs_on+0x418/0x5d0 [ 75.438975][ T8933] __x64_sys_unshare+0x31/0x40 [ 75.443811][ T8933] do_syscall_64+0xfd/0x680 [ 75.448319][ T8933] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 75.454191][ T8933] RIP: 0033:0x4465f9 [ 75.458062][ T8933] 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 [ 75.477648][ T8933] RSP: 002b:00007f7b7c840db8 EFLAGS: 00000246 ORIG_RAX: 0000000000000110 [ 75.486129][ T8933] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 00000000004465f9 [ 75.494172][ T8933] RDX: 0000000000402634 RSI: b958a5771114067f RDI: 0000000044000000 [ 75.502658][ T8933] RBP: 00000000006dbc20 R08: 00007f7b7c841700 R09: 0000000000000000 [ 75.510634][ T8933] R10: 00007f7b7c841700 R11: 0000000000000246 R12: 00000000006dbc2c [ 75.518604][ T8933] R13: 00007ffc7a886f3f R14: 00007f7b7c8419c0 R15: 0000000000000000 [ 75.526650][ T8933] Modules linked in: [ 75.531033][ T8933] ---[ end trace 473b7b2ab2df2940 ]--- [ 75.536550][ T8933] RIP: 0010:ovs_ct_exit+0x1ac/0x4ec [ 75.541885][ T8933] Code: 01 00 00 00 48 c7 c7 00 37 da 88 e8 ee 76 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 [ 75.561628][ T8933] RSP: 0018:ffff8880a08cfb10 EFLAGS: 00010206 [ 75.567738][ T8933] RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 1ffff1101264b91e [ 75.575873][ T8933] RDX: 000000000000000a RSI: 1ffff1101264b925 RDI: 0000000000000282 [ 75.584076][ T8933] RBP: ffff8880a08cfb50 R08: ffff88809325c080 R09: 0000000000000002 [ 75.592035][ T8933] R10: ffffed1015d06c77 R11: ffff8880ae8363bb R12: 0000000000000000 [ 75.600044][ T8933] R13: ffff8880a1608440 R14: ffff8880926bd6c0 R15: dffffc0000000000 [ 75.608075][ T8933] FS: 00007f7b7c841700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 75.617237][ T8933] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 75.623872][ T8933] CR2: 00000000004b4ca0 CR3: 000000008f413000 CR4: 00000000001406f0 [ 75.632092][ T8933] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 75.640312][ T8933] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 75.648362][ T8933] Kernel panic - not syncing: Fatal exception [ 75.655612][ T8933] Kernel Offset: disabled [ 75.660061][ T8933] Rebooting in 86400 seconds..