[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 56.121590][ T26] audit: type=1800 audit(1573821467.401:25): pid=8658 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 56.161258][ T26] audit: type=1800 audit(1573821467.401:26): pid=8658 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 56.199719][ T26] audit: type=1800 audit(1573821467.401:27): pid=8658 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 '10.128.0.235' (ECDSA) to the list of known hosts. 2019/11/15 12:38:11 parsed 1 programs 2019/11/15 12:38:12 executed programs: 0 syzkaller login: [ 81.773860][ T8828] IPVS: ftp: loaded support on port[0] = 21 [ 81.836367][ T8828] chnl_net:caif_netlink_parms(): no params data found [ 81.865527][ T8828] bridge0: port 1(bridge_slave_0) entered blocking state [ 81.873287][ T8828] bridge0: port 1(bridge_slave_0) entered disabled state [ 81.881257][ T8828] device bridge_slave_0 entered promiscuous mode [ 81.889461][ T8828] bridge0: port 2(bridge_slave_1) entered blocking state [ 81.896675][ T8828] bridge0: port 2(bridge_slave_1) entered disabled state [ 81.904471][ T8828] device bridge_slave_1 entered promiscuous mode [ 81.921908][ T8828] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 81.932798][ T8828] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 81.951337][ T8828] team0: Port device team_slave_0 added [ 81.958502][ T8828] team0: Port device team_slave_1 added [ 82.043304][ T8828] device hsr_slave_0 entered promiscuous mode [ 82.091808][ T8828] device hsr_slave_1 entered promiscuous mode [ 82.175150][ T8828] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 82.223694][ T8828] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 82.273691][ T8828] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 82.333706][ T8828] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 82.381803][ T8828] bridge0: port 2(bridge_slave_1) entered blocking state [ 82.388962][ T8828] bridge0: port 2(bridge_slave_1) entered forwarding state [ 82.396786][ T8828] bridge0: port 1(bridge_slave_0) entered blocking state [ 82.403890][ T8828] bridge0: port 1(bridge_slave_0) entered forwarding state [ 82.437864][ T8828] 8021q: adding VLAN 0 to HW filter on device bond0 [ 82.451725][ T3018] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 82.472871][ T3018] bridge0: port 1(bridge_slave_0) entered disabled state [ 82.483273][ T3018] bridge0: port 2(bridge_slave_1) entered disabled state [ 82.491632][ T3018] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 82.503817][ T8828] 8021q: adding VLAN 0 to HW filter on device team0 [ 82.515046][ T3512] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 82.523471][ T3512] bridge0: port 1(bridge_slave_0) entered blocking state [ 82.530631][ T3512] bridge0: port 1(bridge_slave_0) entered forwarding state [ 82.541691][ T3018] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 82.550242][ T3018] bridge0: port 2(bridge_slave_1) entered blocking state [ 82.557359][ T3018] bridge0: port 2(bridge_slave_1) entered forwarding state [ 82.579593][ T8828] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 82.590699][ T8828] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 82.605678][ T3018] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 82.614703][ T3018] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 82.623134][ T3018] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 82.632214][ T3018] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 82.640755][ T3018] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 82.648693][ T3018] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 82.665460][ T3512] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 82.673353][ T3512] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 82.686182][ T8828] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 82.757576][ T8833] FAULT_INJECTION: forcing a failure. [ 82.757576][ T8833] name failslab, interval 1, probability 0, space 0, times 1 [ 82.770629][ T8833] CPU: 1 PID: 8833 Comm: syz-executor.0 Not tainted 5.4.0-rc6+ #0 [ 82.778529][ T8833] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 82.788570][ T8833] Call Trace: [ 82.791849][ T8833] dump_stack+0x197/0x210 [ 82.796247][ T8833] should_fail.cold+0xa/0x15 [ 82.800820][ T8833] ? fault_create_debugfs_attr+0x180/0x180 [ 82.806624][ T8833] ? ___might_sleep+0x163/0x2c0 [ 82.811501][ T8833] __should_failslab+0x121/0x190 [ 82.816601][ T8833] should_failslab+0x9/0x14 [ 82.821090][ T8833] kmem_cache_alloc_trace+0x2d3/0x790 [ 82.826581][ T8833] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 82.832866][ T8833] virtio_transport_do_socket_init+0x4b/0x2f0 [ 82.838919][ T8833] vsock_assign_transport+0x190/0x2d0 [ 82.844284][ T8833] vsock_stream_connect+0x2b3/0xbe0 [ 82.849487][ T8833] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 82.855706][ T8833] ? vsock_dgram_connect+0x470/0x470 [ 82.860968][ T8833] ? debug_lockdep_rcu_enabled+0x71/0xa0 [ 82.866685][ T8833] ? finish_wait+0x260/0x260 [ 82.871258][ T8833] ? apparmor_socket_connect+0xb6/0x160 [ 82.876812][ T8833] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 82.883049][ T8833] __sys_connect+0x264/0x330 [ 82.887647][ T8833] ? __ia32_sys_accept+0xb0/0xb0 [ 82.892576][ T8833] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 82.898804][ T8833] ? ksys_write+0x1cf/0x290 [ 82.903291][ T8833] ? trace_hardirqs_on_thunk+0x1a/0x20 [ 82.908726][ T8833] ? trace_hardirqs_on_thunk+0x1a/0x20 [ 82.914160][ T8833] ? do_syscall_64+0x26/0x760 [ 82.918815][ T8833] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 82.924870][ T8833] ? do_syscall_64+0x26/0x760 [ 82.929977][ T8833] __x64_sys_connect+0x73/0xb0 [ 82.934727][ T8833] do_syscall_64+0xfa/0x760 [ 82.939217][ T8833] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 82.945092][ T8833] RIP: 0033:0x45a659 [ 82.948968][ T8833] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 82.968563][ T8833] RSP: 002b:00007ffcb5ae5728 EFLAGS: 00000246 ORIG_RAX: 000000000000002a [ 82.976950][ T8833] RAX: ffffffffffffffda RBX: 00007ffcb5ae5740 RCX: 000000000045a659 [ 82.985072][ T8833] RDX: 0000000000000010 RSI: 0000000020000180 RDI: 0000000000000003 [ 82.993062][ T8833] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 83.001018][ T8833] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000001fce914 [ 83.008970][ T8833] R13: 00000000004c0ed7 R14: 00000000004d3970 R15: 0000000000000004 [ 83.022145][ T8833] kasan: CONFIG_KASAN_INLINE enabled [ 83.027613][ T8833] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 83.036502][ T8833] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 83.043456][ T8833] CPU: 1 PID: 8833 Comm: syz-executor.0 Not tainted 5.4.0-rc6+ #0 [ 83.051246][ T8833] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 83.061418][ T8833] RIP: 0010:virtio_transport_release+0x13b/0xcb0 [ 83.067869][ T8833] Code: e8 aa f7 2b fa 66 41 83 fd 01 0f 84 34 02 00 00 e8 3a f6 2b fa 48 8b 95 30 ff ff ff 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 22 0a 00 00 48 8b bb 98 00 00 00 48 b8 00 00 00 [ 83.088074][ T8833] RSP: 0018:ffff888095ae7c48 EFLAGS: 00010202 [ 83.094138][ T8833] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff874739a0 [ 83.102088][ T8833] RDX: 0000000000000013 RSI: ffffffff874736d6 RDI: 0000000000000001 [ 83.110045][ T8833] RBP: ffff888095ae7d58 R08: ffff88809ad94140 R09: fffffbfff1555fe1 [ 83.117994][ T8833] R10: fffffbfff1555fe0 R11: 0000000000000003 R12: ffff888095ae7d30 [ 83.125954][ T8833] R13: 0000000000000007 R14: 0000000000000007 R15: 0000000000000000 [ 83.133907][ T8833] FS: 0000000001fce940(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 83.142822][ T8833] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 83.149402][ T8833] CR2: 0000000020000180 CR3: 00000000966e6000 CR4: 00000000001406e0 [ 83.157362][ T8833] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 83.165311][ T8833] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 83.173258][ T8833] Call Trace: [ 83.176562][ T8833] ? virtio_transport_close_timeout+0x130/0x130 [ 83.182795][ T8833] ? __kasan_check_write+0x14/0x20 [ 83.187885][ T8833] ? down_write+0xdf/0x150 [ 83.192290][ T8833] __vsock_release+0x80/0x2d0 [ 83.196944][ T8833] vsock_release+0x35/0xa0 [ 83.201356][ T8833] __sock_release+0xce/0x280 [ 83.205927][ T8833] sock_close+0x1e/0x30 [ 83.210060][ T8833] __fput+0x2ff/0x890 [ 83.214020][ T8833] ? __sock_release+0x280/0x280 [ 83.218851][ T8833] ____fput+0x16/0x20 [ 83.222809][ T8833] task_work_run+0x145/0x1c0 [ 83.227377][ T8833] exit_to_usermode_loop+0x316/0x380 [ 83.232641][ T8833] do_syscall_64+0x65f/0x760 [ 83.237210][ T8833] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 83.243077][ T8833] RIP: 0033:0x4141d0 [ 83.246959][ T8833] Code: 01 f0 ff ff 0f 83 30 1b 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 3d 9d 42 66 00 00 75 14 b8 03 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 04 1b 00 00 c3 48 83 ec 08 e8 0a fc ff ff [ 83.266628][ T8833] RSP: 002b:00007ffcb5ae57a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 83.275015][ T8833] RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00000000004141d0 [ 83.282962][ T8833] RDX: 0000001b33720000 RSI: 0000000000000000 RDI: 0000000000000003 [ 83.290919][ T8833] RBP: 0000000000000001 R08: 000000000000000c R09: ffffffffffffffff [ 83.298878][ T8833] R10: ffffffffffffffff R11: 0000000000000246 R12: 000000000075bf20 [ 83.306826][ T8833] R13: 0000000000000003 R14: 00000000007601a8 R15: 000000000075bf2c [ 83.314775][ T8833] Modules linked in: [ 83.320850][ T8833] ---[ end trace f3e242c393d02d3c ]--- [ 83.326545][ T8833] RIP: 0010:virtio_transport_release+0x13b/0xcb0 [ 83.332894][ T8833] Code: e8 aa f7 2b fa 66 41 83 fd 01 0f 84 34 02 00 00 e8 3a f6 2b fa 48 8b 95 30 ff ff ff 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 22 0a 00 00 48 8b bb 98 00 00 00 48 b8 00 00 00 [ 83.352541][ T8833] RSP: 0018:ffff888095ae7c48 EFLAGS: 00010202 [ 83.358602][ T8833] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff874739a0 [ 83.366595][ T8833] RDX: 0000000000000013 RSI: ffffffff874736d6 RDI: 0000000000000001 [ 83.374606][ T8833] RBP: ffff888095ae7d58 R08: ffff88809ad94140 R09: fffffbfff1555fe1 [ 83.382604][ T8833] R10: fffffbfff1555fe0 R11: 0000000000000003 R12: ffff888095ae7d30 [ 83.390581][ T8833] R13: 0000000000000007 R14: 0000000000000007 R15: 0000000000000000 [ 83.398592][ T8833] FS: 0000000001fce940(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 83.407708][ T8833] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 83.414522][ T8833] CR2: 0000000020000180 CR3: 00000000966e6000 CR4: 00000000001406e0 [ 83.422641][ T8833] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 83.430610][ T8833] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 83.438617][ T8833] Kernel panic - not syncing: Fatal exception [ 83.446136][ T8833] Kernel Offset: disabled [ 83.450468][ T8833] Rebooting in 86400 seconds..