[ 72.614131][ T27] audit: type=1800 audit(1561369663.779:25): pid=9315 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 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. [ 73.593712][ T27] kauditd_printk_skb: 3 callbacks suppressed [ 73.593725][ T27] audit: type=1800 audit(1561369664.759:29): pid=9315 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 73.626345][ T27] audit: type=1800 audit(1561369664.759:30): pid=9315 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.162' (ECDSA) to the list of known hosts. executing program executing program syzkaller login: [ 89.430897][ T9471] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 89.473016][ T9473] IPVS: ftp: loaded support on port[0] = 21 [ 89.510625][ T9475] IPVS: ftp: loaded support on port[0] = 21 executing program [ 89.546600][ T9477] IPVS: ftp: loaded support on port[0] = 21 executing program [ 89.592412][ T9479] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 89.633992][ T9481] IPVS: ftp: loaded support on port[0] = 21 [ 89.672349][ T9483] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 89.711026][ T9485] IPVS: ftp: loaded support on port[0] = 21 [ 89.746595][ T9487] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 89.781209][ T9489] IPVS: ftp: loaded support on port[0] = 21 [ 89.814577][ T9491] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 89.846972][ T9493] IPVS: ftp: loaded support on port[0] = 21 [ 89.881864][ T9495] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 89.915030][ T9497] IPVS: ftp: loaded support on port[0] = 21 [ 89.948481][ T9499] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 89.985245][ T9501] IPVS: ftp: loaded support on port[0] = 21 [ 90.019041][ T9503] IPVS: ftp: loaded support on port[0] = 21 executing program [ 90.056065][ T9505] IPVS: ftp: loaded support on port[0] = 21 [ 90.089154][ T9507] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program [ 90.165003][ T9510] IPVS: ftp: loaded support on port[0] = 21 [ 90.201188][ T9512] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 90.233967][ T9514] IPVS: ftp: loaded support on port[0] = 21 [ 90.267583][ T9516] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 90.303179][ T9518] IPVS: ftp: loaded support on port[0] = 21 [ 90.341090][ T9520] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 90.379723][ T9522] IPVS: ftp: loaded support on port[0] = 21 [ 90.418671][ T9524] IPVS: ftp: loaded support on port[0] = 21 executing program [ 90.457848][ T9526] IPVS: ftp: loaded support on port[0] = 21 [ 90.502551][ T9528] IPVS: ftp: loaded support on port[0] = 21 executing program [ 90.573535][ T9530] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 90.645902][ T9532] IPVS: ftp: loaded support on port[0] = 21 [ 90.715276][ T9534] IPVS: ftp: loaded support on port[0] = 21 executing program [ 90.786344][ T9536] IPVS: ftp: loaded support on port[0] = 21 executing program [ 90.858906][ T9538] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 90.929316][ T9540] IPVS: ftp: loaded support on port[0] = 21 executing program [ 90.994744][ T9542] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 91.065896][ T9544] IPVS: ftp: loaded support on port[0] = 21 [ 91.105256][ T9546] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 91.144259][ T9548] IPVS: ftp: loaded support on port[0] = 21 [ 91.182973][ T9550] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 91.220505][ T9552] IPVS: ftp: loaded support on port[0] = 21 [ 91.257688][ T9554] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 91.293287][ T9556] IPVS: ftp: loaded support on port[0] = 21 [ 91.332256][ T9558] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 91.368949][ T9560] IPVS: ftp: loaded support on port[0] = 21 [ 91.403501][ T9562] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 91.438374][ T9564] IPVS: ftp: loaded support on port[0] = 21 [ 91.473929][ T9566] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 91.510829][ T9568] IPVS: ftp: loaded support on port[0] = 21 [ 91.544517][ T9570] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 91.579502][ T9572] IPVS: ftp: loaded support on port[0] = 21 [ 91.619237][ T9574] IPVS: ftp: loaded support on port[0] = 21 executing program [ 91.657348][ T9576] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 91.698117][ T9578] IPVS: ftp: loaded support on port[0] = 21 [ 91.736805][ T9580] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 91.775266][ T9582] IPVS: ftp: loaded support on port[0] = 21 [ 91.814988][ T9584] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 91.854563][ T9586] IPVS: ftp: loaded support on port[0] = 21 [ 91.893166][ T9588] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 91.931709][ T9590] IPVS: ftp: loaded support on port[0] = 21 [ 91.971637][ T9592] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 92.010319][ T9594] IPVS: ftp: loaded support on port[0] = 21 [ 92.049125][ T9596] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 92.088959][ T9598] IPVS: ftp: loaded support on port[0] = 21 [ 92.128007][ T9600] IPVS: ftp: loaded support on port[0] = 21 executing program [ 92.166337][ T9602] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 92.206917][ T9604] IPVS: ftp: loaded support on port[0] = 21 [ 92.246686][ T9606] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 92.286030][ T9608] IPVS: ftp: loaded support on port[0] = 21 [ 92.325792][ T9610] IPVS: ftp: loaded support on port[0] = 21 executing program [ 92.364560][ T9612] IPVS: ftp: loaded support on port[0] = 21 executing program [ 92.405443][ T9614] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 92.446197][ T9616] IPVS: ftp: loaded support on port[0] = 21 [ 92.484485][ T9618] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 92.524458][ T9620] IPVS: ftp: loaded support on port[0] = 21 [ 92.562929][ T9622] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 92.602909][ T9624] IPVS: ftp: loaded support on port[0] = 21 [ 92.642784][ T9626] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 92.684040][ T9628] IPVS: ftp: loaded support on port[0] = 21 [ 92.722779][ T9630] IPVS: ftp: loaded support on port[0] = 21 executing program [ 92.763532][ T9632] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 92.807513][ T9634] IPVS: ftp: loaded support on port[0] = 21 [ 92.846289][ T9636] IPVS: ftp: loaded support on port[0] = 21 executing program [ 92.886146][ T9638] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 92.927050][ T9640] IPVS: ftp: loaded support on port[0] = 21 [ 92.965274][ T9642] IPVS: ftp: loaded support on port[0] = 21 executing program [ 93.005629][ T9644] IPVS: ftp: loaded support on port[0] = 21 executing program [ 93.046263][ T9646] IPVS: ftp: loaded support on port[0] = 21 [ 93.086894][ T9648] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 93.204922][ T9650] IPVS: ftp: loaded support on port[0] = 21 [ 93.268272][ T9652] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 93.360849][ T9654] IPVS: ftp: loaded support on port[0] = 21 [ 93.415552][ T9656] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 93.521072][ T9658] IPVS: ftp: loaded support on port[0] = 21 [ 93.575085][ T9660] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 93.677099][ T9662] IPVS: ftp: loaded support on port[0] = 21 [ 93.758107][ T9664] IPVS: ftp: loaded support on port[0] = 21 executing program [ 93.837261][ T9666] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 93.967958][ T9668] IPVS: ftp: loaded support on port[0] = 21 [ 94.017486][ T9670] IPVS: ftp: loaded support on port[0] = 21 executing program [ 94.144224][ T9672] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 94.241316][ T9674] IPVS: ftp: loaded support on port[0] = 21 [ 94.298517][ T9676] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 94.380750][ T9678] IPVS: ftp: loaded support on port[0] = 21 [ 94.432654][ T9680] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 94.550151][ T9682] IPVS: ftp: loaded support on port[0] = 21 [ 94.598107][ T9684] IPVS: ftp: loaded support on port[0] = 21 [ 94.948902][ T9684] kasan: CONFIG_KASAN_INLINE enabled [ 94.954652][ T9684] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 94.963114][ T9684] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 94.970077][ T9684] CPU: 0 PID: 9684 Comm: syz-executor059 Not tainted 5.2.0-rc5-next-20190621 #20 [ 94.979165][ T9684] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 94.989281][ T9684] RIP: 0010:ovs_ct_exit+0x1ac/0x4ec [ 94.994601][ T9684] Code: 01 00 00 00 48 c7 c7 c0 3e da 88 e8 3e 4b 38 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 [ 95.014218][ T9684] RSP: 0018:ffff88808de87b10 EFLAGS: 00010206 [ 95.020281][ T9684] RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 1ffff110116465f0 [ 95.028259][ T9684] RDX: 000000000000000a RSI: 1ffff110116465f7 RDI: 0000000000000286 [ 95.036235][ T9684] RBP: ffff88808de87b50 R08: ffff88808b232700 R09: 0000000000000002 [ 95.044193][ T9684] R10: fffffbfff13429ff R11: ffffffff89a14fff R12: 0000000000000000 [ 95.052157][ T9684] R13: ffff88809348e440 R14: ffff88809ae94940 R15: dffffc0000000000 [ 95.060220][ T9684] FS: 00007fbd6122c700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 95.069136][ T9684] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 95.075710][ T9684] CR2: 00000000004b4ca0 CR3: 000000009ad29000 CR4: 00000000001406f0 [ 95.083683][ T9684] Call Trace: [ 95.087023][ T9684] ? kasan_check_read+0x11/0x20 [ 95.091869][ T9684] ovs_exit_net+0x1f8/0xc30 [ 95.096387][ T9684] ? synchronize_rcu.part.0+0xcf/0xe0 [ 95.101753][ T9684] ? kfree_call_rcu+0x10/0x10 [ 95.106418][ T9684] ? ovs_dp_cmd_del+0x270/0x270 [ 95.111253][ T9684] ? ovs_dp_cmd_del+0x270/0x270 [ 95.116139][ T9684] ops_exit_list.isra.0+0xaa/0x150 [ 95.121240][ T9684] setup_net+0x518/0x870 [ 95.125475][ T9684] ? ops_init+0x410/0x410 [ 95.129807][ T9684] ? kasan_check_write+0x14/0x20 [ 95.134754][ T9684] ? down_read_killable+0x51/0x220 [ 95.139903][ T9684] copy_net_ns+0x1df/0x340 [ 95.144352][ T9684] create_new_namespaces+0x400/0x7b0 [ 95.149656][ T9684] unshare_nsproxy_namespaces+0xc2/0x200 [ 95.155464][ T9684] ksys_unshare+0x444/0x980 [ 95.160146][ T9684] ? walk_process_tree+0x2c0/0x2c0 [ 95.165245][ T9684] ? up_read+0xc4/0x200 [ 95.169401][ T9684] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 95.174858][ T9684] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 95.181300][ T9684] ? do_syscall_64+0x26/0x6a0 [ 95.185994][ T9684] ? lockdep_hardirqs_on+0x418/0x5d0 [ 95.191275][ T9684] __x64_sys_unshare+0x31/0x40 [ 95.196033][ T9684] do_syscall_64+0xfd/0x6a0 [ 95.200526][ T9684] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 95.206420][ T9684] RIP: 0033:0x4465f9 [ 95.210301][ T9684] 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 [ 95.229899][ T9684] RSP: 002b:00007fbd6122bdb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000110 [ 95.238301][ T9684] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 00000000004465f9 [ 95.246283][ T9684] RDX: 0000000000402634 RSI: b54794c1aaad9386 RDI: 0000000040000000 [ 95.254322][ T9684] RBP: 00000000006dbc20 R08: 00007fbd6122c700 R09: 0000000000000000 [ 95.262311][ T9684] R10: 00007fbd6122c700 R11: 0000000000000246 R12: 00000000006dbc2c [ 95.270281][ T9684] R13: 00007ffc8b59434f R14: 00007fbd6122c9c0 R15: 0000000000000000 [ 95.278239][ T9684] Modules linked in: [ 95.282590][ T9684] ---[ end trace 6c04fc7bc26fd3b0 ]--- [ 95.288073][ T9684] RIP: 0010:ovs_ct_exit+0x1ac/0x4ec [ 95.293299][ T9684] Code: 01 00 00 00 48 c7 c7 c0 3e da 88 e8 3e 4b 38 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 [ 95.312952][ T9684] RSP: 0018:ffff88808de87b10 EFLAGS: 00010206 [ 95.319155][ T9684] RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 1ffff110116465f0 [ 95.327309][ T9684] RDX: 000000000000000a RSI: 1ffff110116465f7 RDI: 0000000000000286 [ 95.335326][ T9684] RBP: ffff88808de87b50 R08: ffff88808b232700 R09: 0000000000000002 [ 95.343363][ T9684] R10: fffffbfff13429ff R11: ffffffff89a14fff R12: 0000000000000000 [ 95.351481][ T9684] R13: ffff88809348e440 R14: ffff88809ae94940 R15: dffffc0000000000 [ 95.359499][ T9684] FS: 00007fbd6122c700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 95.368429][ T9684] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 95.375045][ T9684] CR2: 00000000004b4ca0 CR3: 000000009ad29000 CR4: 00000000001406f0 [ 95.383130][ T9684] Kernel panic - not syncing: Fatal exception [ 95.390366][ T9684] Kernel Offset: disabled [ 95.394694][ T9684] Rebooting in 86400 seconds..