[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 71.125007][ T26] audit: type=1800 audit(1561270567.400:25): pid=8938 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 71.171087][ T26] audit: type=1800 audit(1561270567.400:26): pid=8938 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 71.203268][ T26] audit: type=1800 audit(1561270567.400:27): pid=8938 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 '10.128.10.23' (ECDSA) to the list of known hosts. executing program executing program executing program syzkaller login: [ 81.429457][ T9095] IPVS: ftp: loaded support on port[0] = 21 [ 81.467141][ T9097] IPVS: ftp: loaded support on port[0] = 21 executing program [ 81.501885][ T9099] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 81.544459][ T9101] IPVS: ftp: loaded support on port[0] = 21 [ 81.580391][ T9103] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 81.619059][ T9105] IPVS: ftp: loaded support on port[0] = 21 [ 81.655841][ T9107] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 81.690737][ T9109] IPVS: ftp: loaded support on port[0] = 21 [ 81.729275][ T9111] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 81.767251][ T9113] IPVS: ftp: loaded support on port[0] = 21 [ 81.803793][ T9115] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 81.839994][ T9117] IPVS: ftp: loaded support on port[0] = 21 [ 81.875638][ T9119] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 81.912094][ T9121] IPVS: ftp: loaded support on port[0] = 21 [ 81.948895][ T9123] IPVS: ftp: loaded support on port[0] = 21 [ 81.983397][ T9125] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 82.065879][ T9128] IPVS: ftp: loaded support on port[0] = 21 [ 82.136483][ T9130] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 82.214052][ T9132] IPVS: ftp: loaded support on port[0] = 21 executing program [ 82.264058][ T9134] IPVS: ftp: loaded support on port[0] = 21 executing program [ 82.320844][ T9136] IPVS: ftp: loaded support on port[0] = 21 executing program [ 82.380434][ T9138] IPVS: ftp: loaded support on port[0] = 21 executing program [ 82.437567][ T9140] IPVS: ftp: loaded support on port[0] = 21 executing program [ 82.494337][ T9142] IPVS: ftp: loaded support on port[0] = 21 executing program [ 82.553166][ T9144] IPVS: ftp: loaded support on port[0] = 21 [ 82.616334][ T9146] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 82.696670][ T9148] IPVS: ftp: loaded support on port[0] = 21 executing program [ 82.757913][ T9150] IPVS: ftp: loaded support on port[0] = 21 executing program [ 82.817906][ T9152] IPVS: ftp: loaded support on port[0] = 21 executing program [ 82.873992][ T9154] IPVS: ftp: loaded support on port[0] = 21 executing program [ 82.933262][ T9156] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 82.989884][ T9158] IPVS: ftp: loaded support on port[0] = 21 [ 83.026720][ T9160] IPVS: ftp: loaded support on port[0] = 21 [ 83.063503][ T9162] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program [ 83.143230][ T9164] IPVS: ftp: loaded support on port[0] = 21 [ 83.180313][ T9166] IPVS: ftp: loaded support on port[0] = 21 executing program [ 83.216921][ T9168] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 83.293952][ T9170] IPVS: ftp: loaded support on port[0] = 21 [ 83.332202][ T9172] IPVS: ftp: loaded support on port[0] = 21 executing program [ 83.369983][ T9174] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 83.414268][ T9176] IPVS: ftp: loaded support on port[0] = 21 [ 83.451329][ T9178] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 83.486312][ T9180] IPVS: ftp: loaded support on port[0] = 21 [ 83.522654][ T9182] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 83.558974][ T9184] IPVS: ftp: loaded support on port[0] = 21 [ 83.595412][ T9186] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 83.630641][ T9188] IPVS: ftp: loaded support on port[0] = 21 [ 83.668139][ T9190] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 83.707013][ T9192] IPVS: ftp: loaded support on port[0] = 21 [ 83.744157][ T9194] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 83.781977][ T9196] IPVS: ftp: loaded support on port[0] = 21 [ 83.816556][ T9198] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 83.853739][ T9200] IPVS: ftp: loaded support on port[0] = 21 [ 83.891952][ T9202] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 83.927843][ T9204] IPVS: ftp: loaded support on port[0] = 21 [ 83.963704][ T9206] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 84.000872][ T9208] IPVS: ftp: loaded support on port[0] = 21 [ 84.039004][ T9210] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 84.076677][ T9212] IPVS: ftp: loaded support on port[0] = 21 [ 84.114895][ T9214] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 84.152122][ T9216] IPVS: ftp: loaded support on port[0] = 21 [ 84.189468][ T9218] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 84.226278][ T9220] IPVS: ftp: loaded support on port[0] = 21 [ 84.262227][ T9222] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 84.299436][ T9224] IPVS: ftp: loaded support on port[0] = 21 [ 84.336432][ T9226] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 84.371283][ T9228] IPVS: ftp: loaded support on port[0] = 21 [ 84.407870][ T9230] IPVS: ftp: loaded support on port[0] = 21 executing program [ 84.444949][ T9232] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 84.490231][ T9234] IPVS: ftp: loaded support on port[0] = 21 [ 84.528041][ T9236] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 84.568158][ T9238] IPVS: ftp: loaded support on port[0] = 21 [ 84.606189][ T9240] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 84.643530][ T9242] IPVS: ftp: loaded support on port[0] = 21 [ 84.681970][ T9244] IPVS: ftp: loaded support on port[0] = 21 executing program [ 84.717622][ T9246] IPVS: ftp: loaded support on port[0] = 21 [ 84.754271][ T9248] IPVS: ftp: loaded support on port[0] = 21 executing program [ 84.858558][ T9250] IPVS: ftp: loaded support on port[0] = 21 executing program [ 84.946720][ T9252] IPVS: ftp: loaded support on port[0] = 21 executing program [ 85.046306][ T9254] IPVS: ftp: loaded support on port[0] = 21 executing program [ 85.177093][ T9256] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 85.295962][ T9258] IPVS: ftp: loaded support on port[0] = 21 [ 85.378922][ T9260] IPVS: ftp: loaded support on port[0] = 21 executing program [ 85.534814][ T9262] IPVS: ftp: loaded support on port[0] = 21 executing program [ 85.646087][ T9264] IPVS: ftp: loaded support on port[0] = 21 executing program [ 85.737080][ T9266] IPVS: ftp: loaded support on port[0] = 21 executing program [ 85.826991][ T9268] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 85.935776][ T9270] IPVS: ftp: loaded support on port[0] = 21 [ 85.982701][ T9272] IPVS: ftp: loaded support on port[0] = 21 [ 86.441308][ T9272] kasan: CONFIG_KASAN_INLINE enabled [ 86.446768][ T9272] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 86.455027][ T9272] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 86.461978][ T9272] CPU: 1 PID: 9272 Comm: syz-executor276 Not tainted 5.2.0-rc5+ #40 [ 86.469985][ T9272] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 86.480977][ T9272] RIP: 0010:ovs_ct_exit+0x1ac/0x4ec [ 86.486169][ T9272] 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 [ 86.505762][ T9272] RSP: 0018:ffff88807eb17b10 EFLAGS: 00010206 [ 86.511904][ T9272] RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 1ffff110142425e6 [ 86.528761][ T9272] RDX: 000000000000000a RSI: 1ffff110142425ed RDI: 0000000000000282 [ 86.536726][ T9272] RBP: ffff88807eb17b50 R08: ffff8880a12126c0 R09: 0000000000000002 [ 86.544688][ T9272] R10: ffffed1015d26c77 R11: ffff8880ae9363bb R12: 0000000000000000 [ 86.554991][ T9272] R13: ffff888090996440 R14: ffff88808d75cdc0 R15: dffffc0000000000 [ 86.562956][ T9272] FS: 00007f63b35c3700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 86.571892][ T9272] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 86.578465][ T9272] CR2: 00000000004b4ca0 CR3: 00000000a09a8000 CR4: 00000000001406e0 [ 86.586588][ T9272] Call Trace: [ 86.589889][ T9272] ? kasan_check_read+0x11/0x20 [ 86.594730][ T9272] ovs_exit_net+0x1f8/0xc30 [ 86.599234][ T9272] ? synchronize_rcu.part.0+0xcf/0xe0 [ 86.604596][ T9272] ? kfree_call_rcu+0x10/0x10 [ 86.609266][ T9272] ? ovs_dp_cmd_del+0x270/0x270 [ 86.614104][ T9272] ? ovs_dp_cmd_del+0x270/0x270 [ 86.618971][ T9272] ops_exit_list.isra.0+0xaa/0x150 [ 86.624097][ T9272] setup_net+0x518/0x870 [ 86.628343][ T9272] ? ops_init+0x410/0x410 [ 86.632661][ T9272] ? kasan_check_write+0x14/0x20 [ 86.637596][ T9272] ? down_read_killable+0x51/0x220 [ 86.642706][ T9272] copy_net_ns+0x1df/0x340 [ 86.647113][ T9272] create_new_namespaces+0x400/0x7b0 [ 86.652388][ T9272] unshare_nsproxy_namespaces+0xc2/0x200 [ 86.658038][ T9272] ksys_unshare+0x440/0x980 [ 86.662606][ T9272] ? walk_process_tree+0x2c0/0x2c0 [ 86.667709][ T9272] ? up_read+0xc4/0x200 [ 86.671939][ T9272] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 86.677407][ T9272] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 86.683572][ T9272] ? do_syscall_64+0x26/0x680 [ 86.688271][ T9272] ? lockdep_hardirqs_on+0x418/0x5d0 [ 86.693661][ T9272] __x64_sys_unshare+0x31/0x40 [ 86.698437][ T9272] do_syscall_64+0xfd/0x680 [ 86.702942][ T9272] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 86.708841][ T9272] RIP: 0033:0x4465f9 [ 86.712721][ T9272] 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 [ 86.732434][ T9272] RSP: 002b:00007f63b35c2db8 EFLAGS: 00000246 ORIG_RAX: 0000000000000110 [ 86.740843][ T9272] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 00000000004465f9 [ 86.748804][ T9272] RDX: 0000000000402634 RSI: 6571ce7db4535519 RDI: 0000000040000000 [ 86.756783][ T9272] RBP: 00000000006dbc20 R08: 00007f63b35c3700 R09: 0000000000000000 [ 86.764768][ T9272] R10: 00007f63b35c3700 R11: 0000000000000246 R12: 00000000006dbc2c [ 86.772957][ T9272] R13: 00007fff651f1e9f R14: 00007f63b35c39c0 R15: 0000000000000000 [ 86.780928][ T9272] Modules linked in: [ 86.785169][ T9272] ---[ end trace ee246c26f9bfefd7 ]--- [ 86.790651][ T9272] RIP: 0010:ovs_ct_exit+0x1ac/0x4ec [ 86.795881][ T9272] 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 [ 86.815567][ T9272] RSP: 0018:ffff88807eb17b10 EFLAGS: 00010206 [ 86.821662][ T9272] RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 1ffff110142425e6 [ 86.829641][ T9272] RDX: 000000000000000a RSI: 1ffff110142425ed RDI: 0000000000000282 [ 86.837739][ T9272] RBP: ffff88807eb17b50 R08: ffff8880a12126c0 R09: 0000000000000002 [ 86.845812][ T9272] R10: ffffed1015d26c77 R11: ffff8880ae9363bb R12: 0000000000000000 [ 86.853841][ T9272] R13: ffff888090996440 R14: ffff88808d75cdc0 R15: dffffc0000000000 [ 86.861909][ T9272] FS: 00007f63b35c3700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 86.870987][ T9272] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 86.877580][ T9272] CR2: 00000000004b4ca0 CR3: 00000000a09a8000 CR4: 00000000001406e0 [ 86.885594][ T9272] Kernel panic - not syncing: Fatal exception [ 86.893017][ T9272] Kernel Offset: disabled [ 86.897386][ T9272] Rebooting in 86400 seconds..