[ 57.078005][ T26] audit: type=1800 audit(1561089834.710:25): pid=8613 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 57.115519][ T26] audit: type=1800 audit(1561089834.710:26): pid=8613 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 57.167807][ T26] audit: type=1800 audit(1561089834.720:27): pid=8613 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. [ 57.789973][ T8677] sshd (8677) used greatest stack depth: 23120 bytes left [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.1.32' (ECDSA) to the list of known hosts. executing program executing program executing program syzkaller login: [ 66.761910][ T8768] IPVS: ftp: loaded support on port[0] = 21 [ 66.796299][ T8770] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 66.828410][ T8772] IPVS: ftp: loaded support on port[0] = 21 [ 66.863556][ T8774] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 66.901836][ T8776] IPVS: ftp: loaded support on port[0] = 21 [ 66.933819][ T8778] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 66.969239][ T8780] IPVS: ftp: loaded support on port[0] = 21 [ 67.002737][ T8782] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 67.034162][ T8784] IPVS: ftp: loaded support on port[0] = 21 [ 67.068539][ T8786] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 67.103602][ T8788] IPVS: ftp: loaded support on port[0] = 21 [ 67.136160][ T8790] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 67.172285][ T8792] IPVS: ftp: loaded support on port[0] = 21 [ 67.208252][ T8794] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 67.241266][ T8796] IPVS: ftp: loaded support on port[0] = 21 [ 67.273121][ T8798] IPVS: ftp: loaded support on port[0] = 21 executing program [ 67.307736][ T8800] IPVS: ftp: loaded support on port[0] = 21 [ 67.344672][ T8802] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 67.429768][ T8805] IPVS: ftp: loaded support on port[0] = 21 executing program [ 67.473640][ T8808] IPVS: ftp: loaded support on port[0] = 21 executing program [ 67.526140][ T8810] IPVS: ftp: loaded support on port[0] = 21 executing program [ 67.577764][ T8812] IPVS: ftp: loaded support on port[0] = 21 executing program [ 67.630133][ T8814] IPVS: ftp: loaded support on port[0] = 21 executing program [ 67.682421][ T8816] IPVS: ftp: loaded support on port[0] = 21 executing program [ 67.736322][ T8818] IPVS: ftp: loaded support on port[0] = 21 executing program [ 67.788619][ T8820] IPVS: ftp: loaded support on port[0] = 21 executing program [ 67.840991][ T8822] IPVS: ftp: loaded support on port[0] = 21 executing program [ 67.893829][ T8824] IPVS: ftp: loaded support on port[0] = 21 executing program [ 67.948211][ T8826] IPVS: ftp: loaded support on port[0] = 21 executing program [ 67.999946][ T8828] IPVS: ftp: loaded support on port[0] = 21 executing program [ 68.054127][ T8830] IPVS: ftp: loaded support on port[0] = 21 executing program [ 68.110754][ T8832] IPVS: ftp: loaded support on port[0] = 21 executing program [ 68.166892][ T8834] IPVS: ftp: loaded support on port[0] = 21 executing program [ 68.221474][ T8836] IPVS: ftp: loaded support on port[0] = 21 executing program [ 68.276224][ T8838] IPVS: ftp: loaded support on port[0] = 21 executing program [ 68.334951][ T8840] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 68.390337][ T8842] IPVS: ftp: loaded support on port[0] = 21 [ 68.425623][ T8844] IPVS: ftp: loaded support on port[0] = 21 executing program [ 68.469394][ T8846] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 68.520964][ T8848] IPVS: ftp: loaded support on port[0] = 21 [ 68.560073][ T8850] IPVS: ftp: loaded support on port[0] = 21 executing program [ 68.593300][ T8852] IPVS: ftp: loaded support on port[0] = 21 [ 68.626205][ T8854] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 68.682386][ T8856] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 68.723780][ T8858] IPVS: ftp: loaded support on port[0] = 21 [ 68.761076][ T8860] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 68.802606][ T8862] IPVS: ftp: loaded support on port[0] = 21 [ 68.836217][ T8864] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 68.871829][ T8866] IPVS: ftp: loaded support on port[0] = 21 [ 68.903482][ T8868] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 68.935869][ T8870] IPVS: ftp: loaded support on port[0] = 21 [ 68.970007][ T8872] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 69.002435][ T8874] IPVS: ftp: loaded support on port[0] = 21 [ 69.033880][ T8876] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 69.067598][ T8878] IPVS: ftp: loaded support on port[0] = 21 [ 69.100262][ T8880] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 69.132600][ T8882] IPVS: ftp: loaded support on port[0] = 21 [ 69.165156][ T8884] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 69.198031][ T8886] IPVS: ftp: loaded support on port[0] = 21 [ 69.231002][ T8888] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 69.264086][ T8890] IPVS: ftp: loaded support on port[0] = 21 [ 69.297061][ T8892] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 69.329633][ T8894] IPVS: ftp: loaded support on port[0] = 21 [ 69.361721][ T8896] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 69.394162][ T8898] IPVS: ftp: loaded support on port[0] = 21 [ 69.428495][ T8900] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 69.462227][ T8902] IPVS: ftp: loaded support on port[0] = 21 [ 69.495844][ T8904] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 69.529430][ T8906] IPVS: ftp: loaded support on port[0] = 21 [ 69.562287][ T8908] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 69.595351][ T8910] IPVS: ftp: loaded support on port[0] = 21 [ 69.629317][ T8912] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 69.663166][ T8914] IPVS: ftp: loaded support on port[0] = 21 [ 69.695212][ T8916] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 69.729964][ T8918] IPVS: ftp: loaded support on port[0] = 21 [ 69.763440][ T8920] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 69.796857][ T8922] IPVS: ftp: loaded support on port[0] = 21 [ 69.830091][ T8924] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 69.863088][ T8926] IPVS: ftp: loaded support on port[0] = 21 [ 69.896420][ T8928] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 69.932432][ T8930] IPVS: ftp: loaded support on port[0] = 21 [ 69.966369][ T8932] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 69.999649][ T8934] IPVS: ftp: loaded support on port[0] = 21 [ 70.032104][ T8936] IPVS: ftp: loaded support on port[0] = 21 executing program [ 70.065352][ T8938] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 70.108660][ T8940] IPVS: ftp: loaded support on port[0] = 21 [ 70.144500][ T8942] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 70.180039][ T8944] IPVS: ftp: loaded support on port[0] = 21 [ 70.212109][ T8946] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 70.244702][ T8948] IPVS: ftp: loaded support on port[0] = 21 [ 70.278682][ T8950] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 70.312330][ T8952] IPVS: ftp: loaded support on port[0] = 21 [ 70.346550][ T8954] IPVS: ftp: loaded support on port[0] = 21 [ 70.383302][ T8956] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 70.479073][ T8958] IPVS: ftp: loaded support on port[0] = 21 [ 70.521357][ T8960] IPVS: ftp: loaded support on port[0] = 21 executing program [ 70.621317][ T8962] IPVS: ftp: loaded support on port[0] = 21 executing program [ 70.713133][ T8964] IPVS: ftp: loaded support on port[0] = 21 executing program [ 70.825069][ T8966] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 70.917261][ T8968] IPVS: ftp: loaded support on port[0] = 21 [ 70.983776][ T8970] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 71.065826][ T8972] IPVS: ftp: loaded support on port[0] = 21 [ 71.121652][ T8974] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 71.218937][ T8976] IPVS: ftp: loaded support on port[0] = 21 [ 71.262811][ T8978] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 71.346746][ T8980] IPVS: ftp: loaded support on port[0] = 21 [ 71.385288][ T8982] IPVS: ftp: loaded support on port[0] = 21 executing program [ 71.471585][ T8984] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 71.581832][ T8986] IPVS: ftp: loaded support on port[0] = 21 [ 71.622151][ T8988] IPVS: ftp: loaded support on port[0] = 21 [ 72.017399][ T8988] kasan: CONFIG_KASAN_INLINE enabled [ 72.024434][ T8988] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 72.033330][ T8988] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 72.040284][ T8988] CPU: 0 PID: 8988 Comm: syz-executor171 Not tainted 5.2.0-rc5+ #40 [ 72.049861][ T8988] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 72.060165][ T8988] RIP: 0010:ovs_ct_exit+0x1ac/0x4ec [ 72.065351][ T8988] 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 [ 72.092143][ T8988] RSP: 0018:ffff888089abfb10 EFLAGS: 00010206 [ 72.098202][ T8988] RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 1ffff11015223926 [ 72.106175][ T8988] RDX: 000000000000000a RSI: 1ffff1101522392d RDI: 0000000000000282 [ 72.114174][ T8988] RBP: ffff888089abfb50 R08: ffff8880a911c0c0 R09: 0000000000000002 [ 72.122248][ T8988] R10: ffffed1015d06c77 R11: ffff8880ae8363bb R12: 0000000000000000 [ 72.130208][ T8988] R13: ffff88809b4b2080 R14: ffff88808cf4e480 R15: dffffc0000000000 [ 72.138194][ T8988] FS: 00007f6a50427700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 72.147124][ T8988] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 72.153705][ T8988] CR2: 00000000004cc870 CR3: 00000000a571d000 CR4: 00000000001406f0 [ 72.161666][ T8988] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 72.169627][ T8988] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 72.177588][ T8988] Call Trace: [ 72.180878][ T8988] ? kasan_check_read+0x11/0x20 [ 72.185727][ T8988] ovs_exit_net+0x1f8/0xc30 [ 72.190219][ T8988] ? synchronize_rcu.part.0+0xcf/0xe0 [ 72.195618][ T8988] ? kfree_call_rcu+0x10/0x10 [ 72.200760][ T8988] ? ovs_dp_cmd_del+0x270/0x270 [ 72.205688][ T8988] ? ovs_dp_cmd_del+0x270/0x270 [ 72.210569][ T8988] ops_exit_list.isra.0+0xaa/0x150 [ 72.215669][ T8988] setup_net+0x518/0x870 [ 72.220093][ T8988] ? ops_init+0x410/0x410 [ 72.224431][ T8988] ? kasan_check_write+0x14/0x20 [ 72.229399][ T8988] ? down_read_killable+0x51/0x220 [ 72.234580][ T8988] copy_net_ns+0x1df/0x340 [ 72.240223][ T8988] create_new_namespaces+0x400/0x7b0 [ 72.245528][ T8988] unshare_nsproxy_namespaces+0xc2/0x200 [ 72.251169][ T8988] ksys_unshare+0x440/0x980 [ 72.255660][ T8988] ? walk_process_tree+0x2c0/0x2c0 [ 72.260759][ T8988] ? up_read+0xc4/0x200 [ 72.264900][ T8988] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 72.270357][ T8988] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 72.276443][ T8988] ? do_syscall_64+0x26/0x680 [ 72.281140][ T8988] ? lockdep_hardirqs_on+0x418/0x5d0 [ 72.286431][ T8988] __x64_sys_unshare+0x31/0x40 [ 72.291189][ T8988] do_syscall_64+0xfd/0x680 [ 72.295687][ T8988] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 72.301583][ T8988] RIP: 0033:0x4465f9 [ 72.305472][ T8988] 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 [ 72.325236][ T8988] RSP: 002b:00007f6a50426db8 EFLAGS: 00000246 ORIG_RAX: 0000000000000110 [ 72.333641][ T8988] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 00000000004465f9 [ 72.341611][ T8988] RDX: 0000000000402634 RSI: e25702b80c063c3b RDI: 0000000040000000 [ 72.349586][ T8988] RBP: 00000000006dbc20 R08: 00007f6a50427700 R09: 0000000000000000 [ 72.357588][ T8988] R10: 00007f6a50427700 R11: 0000000000000246 R12: 00000000006dbc2c [ 72.365571][ T8988] R13: 00007ffcf56267ef R14: 00007f6a504279c0 R15: 0000000000000000 [ 72.373547][ T8988] Modules linked in: [ 72.377967][ T8988] ---[ end trace bd9a0f19ac921f14 ]--- [ 72.383448][ T8988] RIP: 0010:ovs_ct_exit+0x1ac/0x4ec [ 72.388702][ T8988] 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 [ 72.408345][ T8988] RSP: 0018:ffff888089abfb10 EFLAGS: 00010206 [ 72.414485][ T8988] RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 1ffff11015223926 [ 72.422557][ T8988] RDX: 000000000000000a RSI: 1ffff1101522392d RDI: 0000000000000282 [ 72.430571][ T8988] RBP: ffff888089abfb50 R08: ffff8880a911c0c0 R09: 0000000000000002 [ 72.438627][ T8988] R10: ffffed1015d06c77 R11: ffff8880ae8363bb R12: 0000000000000000 [ 72.446614][ T8988] R13: ffff88809b4b2080 R14: ffff88808cf4e480 R15: dffffc0000000000 [ 72.454638][ T8988] FS: 00007f6a50427700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 72.463602][ T8988] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 72.470212][ T8988] CR2: 00000000004cc870 CR3: 00000000a571d000 CR4: 00000000001406f0 [ 72.478213][ T8988] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 72.486172][ T8988] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 72.494174][ T8988] Kernel panic - not syncing: Fatal exception [ 72.501372][ T8988] Kernel Offset: disabled [ 72.505706][ T8988] Rebooting in 86400 seconds..