[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 63.443654][ T26] audit: type=1800 audit(1561349778.969:25): pid=8970 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 63.486932][ T26] audit: type=1800 audit(1561349778.979:26): pid=8970 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 63.530230][ T26] audit: type=1800 audit(1561349778.979:27): pid=8970 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 '10.128.1.14' (ECDSA) to the list of known hosts. executing program executing program executing program syzkaller login: [ 85.795802][ T9124] IPVS: ftp: loaded support on port[0] = 21 [ 85.833936][ T9126] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 85.866925][ T9128] IPVS: ftp: loaded support on port[0] = 21 [ 85.904530][ T9130] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 85.952599][ T9132] IPVS: ftp: loaded support on port[0] = 21 [ 85.985880][ T9134] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 86.021224][ T9136] IPVS: ftp: loaded support on port[0] = 21 [ 86.058819][ T9138] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 86.096232][ T9140] IPVS: ftp: loaded support on port[0] = 21 [ 86.134578][ T9142] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 86.170581][ T9144] IPVS: ftp: loaded support on port[0] = 21 [ 86.208616][ T9146] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 86.242049][ T9148] IPVS: ftp: loaded support on port[0] = 21 [ 86.280794][ T9150] IPVS: ftp: loaded support on port[0] = 21 [ 86.316169][ T9152] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program [ 86.397311][ T9155] IPVS: ftp: loaded support on port[0] = 21 [ 86.433634][ T9157] IPVS: ftp: loaded support on port[0] = 21 executing program [ 86.469578][ T9159] IPVS: ftp: loaded support on port[0] = 21 executing program [ 86.516753][ T9161] IPVS: ftp: loaded support on port[0] = 21 executing program [ 86.577109][ T9163] IPVS: ftp: loaded support on port[0] = 21 executing program [ 86.638818][ T9165] IPVS: ftp: loaded support on port[0] = 21 executing program [ 86.695767][ T9167] IPVS: ftp: loaded support on port[0] = 21 executing program [ 86.758927][ T9169] IPVS: ftp: loaded support on port[0] = 21 executing program [ 86.823589][ T9171] IPVS: ftp: loaded support on port[0] = 21 executing program [ 86.883511][ T9173] IPVS: ftp: loaded support on port[0] = 21 executing program [ 86.942644][ T9175] IPVS: ftp: loaded support on port[0] = 21 executing program [ 87.003991][ T9177] IPVS: ftp: loaded support on port[0] = 21 executing program [ 87.062216][ T9179] IPVS: ftp: loaded support on port[0] = 21 executing program [ 87.120259][ T9181] IPVS: ftp: loaded support on port[0] = 21 executing program [ 87.179564][ T9183] IPVS: ftp: loaded support on port[0] = 21 executing program [ 87.236800][ T9185] IPVS: ftp: loaded support on port[0] = 21 executing program [ 87.295797][ T9187] IPVS: ftp: loaded support on port[0] = 21 executing program [ 87.352757][ T9189] IPVS: ftp: loaded support on port[0] = 21 executing program [ 87.414155][ T9191] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 87.470721][ T9193] IPVS: ftp: loaded support on port[0] = 21 [ 87.508286][ T9195] IPVS: ftp: loaded support on port[0] = 21 executing program [ 87.545674][ T9197] IPVS: ftp: loaded support on port[0] = 21 executing program [ 87.608010][ T9199] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 87.655133][ T9201] IPVS: ftp: loaded support on port[0] = 21 [ 87.692303][ T9203] IPVS: ftp: loaded support on port[0] = 21 executing program [ 87.740722][ T9205] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 87.799748][ T9207] IPVS: ftp: loaded support on port[0] = 21 [ 87.835119][ T9209] IPVS: ftp: loaded support on port[0] = 21 executing program [ 87.872221][ T9211] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 87.920182][ T9213] IPVS: ftp: loaded support on port[0] = 21 [ 87.956796][ T9215] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 87.994513][ T9217] IPVS: ftp: loaded support on port[0] = 21 [ 88.031577][ T9219] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 88.068376][ T9221] IPVS: ftp: loaded support on port[0] = 21 [ 88.106270][ T9223] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 88.142743][ T9225] IPVS: ftp: loaded support on port[0] = 21 [ 88.181596][ T9227] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 88.219486][ T9229] IPVS: ftp: loaded support on port[0] = 21 [ 88.254705][ T9231] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 88.293106][ T9233] IPVS: ftp: loaded support on port[0] = 21 [ 88.330242][ T9235] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 88.368448][ T9237] IPVS: ftp: loaded support on port[0] = 21 [ 88.405143][ T9239] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 88.441995][ T9241] IPVS: ftp: loaded support on port[0] = 21 [ 88.477464][ T9243] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 88.514589][ T9245] IPVS: ftp: loaded support on port[0] = 21 [ 88.549536][ T9247] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 88.586229][ T9249] IPVS: ftp: loaded support on port[0] = 21 [ 88.623254][ T9251] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 88.661240][ T9253] IPVS: ftp: loaded support on port[0] = 21 [ 88.700585][ T9255] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 88.738285][ T9257] IPVS: ftp: loaded support on port[0] = 21 [ 88.774928][ T9259] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 88.810762][ T9261] IPVS: ftp: loaded support on port[0] = 21 [ 88.849755][ T9263] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 88.887486][ T9265] IPVS: ftp: loaded support on port[0] = 21 [ 88.924246][ T9267] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 88.960023][ T9269] IPVS: ftp: loaded support on port[0] = 21 [ 88.997978][ T9271] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 89.043865][ T9273] IPVS: ftp: loaded support on port[0] = 21 [ 89.080619][ T9275] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 89.119300][ T9277] IPVS: ftp: loaded support on port[0] = 21 [ 89.156088][ T9279] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 89.191659][ T9281] IPVS: ftp: loaded support on port[0] = 21 [ 89.228591][ T9283] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 89.265690][ T9285] IPVS: ftp: loaded support on port[0] = 21 [ 89.303621][ T9287] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 89.340630][ T9289] IPVS: ftp: loaded support on port[0] = 21 [ 89.377317][ T9291] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 89.416459][ T9293] IPVS: ftp: loaded support on port[0] = 21 [ 89.454732][ T9295] IPVS: ftp: loaded support on port[0] = 21 executing program [ 89.492578][ T9297] IPVS: ftp: loaded support on port[0] = 21 [ 89.532668][ T9299] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 89.636433][ T9301] IPVS: ftp: loaded support on port[0] = 21 [ 89.685229][ T9303] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 89.777759][ T9305] IPVS: ftp: loaded support on port[0] = 21 [ 89.829971][ T9307] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 89.923074][ T9309] IPVS: ftp: loaded support on port[0] = 21 [ 89.965816][ T9311] IPVS: ftp: loaded support on port[0] = 21 executing program [ 90.064457][ T9313] IPVS: ftp: loaded support on port[0] = 21 executing program [ 90.164523][ T9315] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 90.282967][ T9317] IPVS: ftp: loaded support on port[0] = 21 [ 90.333021][ T9319] IPVS: ftp: loaded support on port[0] = 21 executing program [ 90.441577][ T9321] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 90.534996][ T9323] IPVS: ftp: loaded support on port[0] = 21 [ 90.584243][ T9325] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 90.668955][ T9327] IPVS: ftp: loaded support on port[0] = 21 [ 90.720144][ T9329] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 90.820551][ T9331] IPVS: ftp: loaded support on port[0] = 21 [ 90.866514][ T9334] IPVS: ftp: loaded support on port[0] = 21 [ 91.426893][ T9334] kasan: CONFIG_KASAN_INLINE enabled [ 91.432502][ T9334] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 91.440699][ T9334] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 91.447673][ T9334] CPU: 0 PID: 9334 Comm: syz-executor926 Not tainted 5.2.0-rc5+ #41 [ 91.455636][ T9334] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 91.465751][ T9334] RIP: 0010:ovs_ct_exit+0x1ac/0x4ec [ 91.470948][ T9334] 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 [ 91.490626][ T9334] RSP: 0018:ffff888085b5fb10 EFLAGS: 00010206 [ 91.496715][ T9334] RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 1ffff11014a519c6 [ 91.504678][ T9334] RDX: 000000000000000a RSI: 1ffff11014a519cd RDI: 0000000000000286 [ 91.512654][ T9334] RBP: ffff888085b5fb50 R08: ffff8880a528c5c0 R09: 0000000000000002 [ 91.520647][ T9334] R10: ffffed1015d06c77 R11: ffff8880ae8363bb R12: 0000000000000000 [ 91.528611][ T9334] R13: ffff8880972c63c0 R14: ffff888099178940 R15: dffffc0000000000 [ 91.537443][ T9334] FS: 00007fde0c9e2700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 91.546409][ T9334] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 91.553082][ T9334] CR2: 00000000004cc870 CR3: 000000008a166000 CR4: 00000000001406f0 [ 91.561044][ T9334] Call Trace: [ 91.564347][ T9334] ? kasan_check_read+0x11/0x20 [ 91.569211][ T9334] ovs_exit_net+0x1f8/0xc30 [ 91.573723][ T9334] ? synchronize_rcu.part.0+0xcf/0xe0 [ 91.579094][ T9334] ? kfree_call_rcu+0x10/0x10 [ 91.583766][ T9334] ? ovs_dp_cmd_del+0x270/0x270 [ 91.588605][ T9334] ? ovs_dp_cmd_del+0x270/0x270 [ 91.593577][ T9334] ops_exit_list.isra.0+0xaa/0x150 [ 91.598676][ T9334] setup_net+0x518/0x870 [ 91.602920][ T9334] ? ops_init+0x410/0x410 [ 91.607352][ T9334] ? kasan_check_write+0x14/0x20 [ 91.612272][ T9334] ? down_read_killable+0x51/0x220 [ 91.617371][ T9334] copy_net_ns+0x1df/0x340 [ 91.621775][ T9334] create_new_namespaces+0x400/0x7b0 [ 91.627048][ T9334] unshare_nsproxy_namespaces+0xc2/0x200 [ 91.632669][ T9334] ksys_unshare+0x440/0x980 [ 91.637153][ T9334] ? walk_process_tree+0x2c0/0x2c0 [ 91.642261][ T9334] ? up_read+0xc4/0x200 [ 91.646407][ T9334] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 91.651864][ T9334] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 91.657981][ T9334] ? do_syscall_64+0x26/0x680 [ 91.662661][ T9334] ? lockdep_hardirqs_on+0x418/0x5d0 [ 91.667967][ T9334] __x64_sys_unshare+0x31/0x40 [ 91.672730][ T9334] do_syscall_64+0xfd/0x680 [ 91.677231][ T9334] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 91.683128][ T9334] RIP: 0033:0x4465f9 [ 91.687009][ T9334] 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 [ 91.706690][ T9334] RSP: 002b:00007fde0c9e1db8 EFLAGS: 00000246 ORIG_RAX: 0000000000000110 [ 91.715299][ T9334] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 00000000004465f9 [ 91.723260][ T9334] RDX: 0000000000402634 RSI: e9215d240b7eddc9 RDI: 0000000040000000 [ 91.731220][ T9334] RBP: 00000000006dbc20 R08: 00007fde0c9e2700 R09: 0000000000000000 [ 91.739190][ T9334] R10: 00007fde0c9e2700 R11: 0000000000000246 R12: 00000000006dbc2c [ 91.747162][ T9334] R13: 00007ffc69ccda2f R14: 00007fde0c9e29c0 R15: 0000000000000000 [ 91.755140][ T9334] Modules linked in: [ 91.759726][ T9334] ---[ end trace f0ae5adc51837107 ]--- [ 91.765902][ T9334] RIP: 0010:ovs_ct_exit+0x1ac/0x4ec [ 91.771144][ T9334] 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 [ 91.791319][ T9334] RSP: 0018:ffff888085b5fb10 EFLAGS: 00010206 [ 91.797423][ T9334] RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 1ffff11014a519c6 [ 91.805487][ T9334] RDX: 000000000000000a RSI: 1ffff11014a519cd RDI: 0000000000000286 [ 91.813569][ T9334] RBP: ffff888085b5fb50 R08: ffff8880a528c5c0 R09: 0000000000000002 [ 91.821628][ T9334] R10: ffffed1015d06c77 R11: ffff8880ae8363bb R12: 0000000000000000 [ 91.829771][ T9334] R13: ffff8880972c63c0 R14: ffff888099178940 R15: dffffc0000000000 [ 91.838330][ T9334] FS: 00007fde0c9e2700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 91.848109][ T9334] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 91.854712][ T9334] CR2: 00000000004cc870 CR3: 000000008a166000 CR4: 00000000001406f0 [ 91.862744][ T9334] Kernel panic - not syncing: Fatal exception [ 91.870448][ T9334] Kernel Offset: disabled [ 91.874806][ T9334] Rebooting in 86400 seconds..