[ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.96' (ECDSA) to the list of known hosts. 2020/12/10 06:19:36 parsed 1 programs 2020/12/10 06:19:36 executed programs: 0 syzkaller login: [ 75.905217][ T8534] IPVS: ftp: loaded support on port[0] = 21 [ 76.084584][ T8534] chnl_net:caif_netlink_parms(): no params data found [ 76.143531][ T8534] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.152373][ T8534] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.161328][ T8534] device bridge_slave_0 entered promiscuous mode [ 76.171161][ T8534] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.178457][ T8534] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.186220][ T8534] device bridge_slave_1 entered promiscuous mode [ 76.209188][ T8534] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 76.220347][ T8534] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 76.246432][ T8534] team0: Port device team_slave_0 added [ 76.253959][ T8534] team0: Port device team_slave_1 added [ 76.272823][ T8534] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 76.279829][ T8534] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 76.305808][ T8534] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 76.318824][ T8534] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 76.326914][ T8534] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 76.353132][ T8534] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 76.383485][ T8534] device hsr_slave_0 entered promiscuous mode [ 76.390436][ T8534] device hsr_slave_1 entered promiscuous mode [ 76.501072][ T8534] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 76.512177][ T8534] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 76.524940][ T8534] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 76.535682][ T8534] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 76.564142][ T8534] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.571419][ T8534] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.579740][ T8534] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.586842][ T8534] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.640372][ T8534] 8021q: adding VLAN 0 to HW filter on device bond0 [ 76.656425][ T18] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 76.669969][ T18] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.679393][ T18] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.687725][ T18] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 76.704011][ T8534] 8021q: adding VLAN 0 to HW filter on device team0 [ 76.715548][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 76.725822][ T7] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.733035][ T7] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.759657][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 76.769895][ T7] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.776971][ T7] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.785691][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 76.798950][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 76.807370][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 76.824599][ T3202] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 76.837197][ T18] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 76.850507][ T8534] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 76.871722][ T3202] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 76.879891][ T3202] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 76.894483][ T8534] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 76.915666][ T18] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 76.941872][ T3202] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 76.951187][ T3202] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 76.959749][ T3202] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 76.972013][ T8534] device veth0_vlan entered promiscuous mode [ 76.985416][ T8534] device veth1_vlan entered promiscuous mode [ 77.010423][ T18] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 77.018998][ T18] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 77.027262][ T18] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 77.040074][ T8534] device veth0_macvtap entered promiscuous mode [ 77.051645][ T8534] device veth1_macvtap entered promiscuous mode [ 77.062451][ T4353] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 77.083144][ T8534] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 77.091117][ T3202] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 77.100408][ T3202] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 77.113593][ T8534] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 77.121734][ T3202] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 77.130718][ T3202] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 77.143783][ T8534] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.154226][ T8534] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.163268][ T8534] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.176296][ T8534] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.284169][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 77.297866][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 77.331462][ T18] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 77.351565][ T22] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 77.359731][ T22] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 77.371381][ T18] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 77.878921][ T18] Bluetooth: hci0: command 0x0409 tx timeout [ 78.161875][ T8859] INFO: trying to register non-static key. [ 78.167733][ T8859] the code is fine but needs lockdep annotation. [ 78.174053][ T8859] turning off the locking correctness validator. [ 78.180386][ T8859] CPU: 0 PID: 8859 Comm: syz-executor.0 Not tainted 5.10.0-rc7-next-20201208-syzkaller #0 [ 78.190302][ T8859] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 78.200364][ T8859] Call Trace: [ 78.203678][ T8859] dump_stack+0x107/0x163 [ 78.208045][ T8859] register_lock_class+0xfa3/0x1090 [ 78.213239][ T8859] ? debug_object_activate+0x287/0x3e0 [ 78.218681][ T8859] ? lock_downgrade+0x6d0/0x6d0 [ 78.223514][ T8859] ? is_dynamic_key+0x1c0/0x1c0 [ 78.228349][ T8859] __lock_acquire+0x101/0x54b0 [ 78.233097][ T8859] ? lock_downgrade+0x6d0/0x6d0 [ 78.237983][ T8859] ? lockdep_hardirqs_on_prepare+0x420/0x420 [ 78.243990][ T8859] ? do_raw_spin_unlock+0x171/0x230 [ 78.249346][ T8859] lock_acquire+0x29d/0x750 [ 78.253832][ T8859] ? skb_dequeue+0x1c/0x180 [ 78.258329][ T8859] ? lock_release+0x710/0x710 [ 78.262984][ T8859] ? mark_held_locks+0x9f/0xe0 [ 78.267735][ T8859] ? _raw_spin_lock_irqsave+0x4e/0x50 [ 78.273090][ T8859] _raw_spin_lock_irqsave+0x39/0x50 [ 78.278292][ T8859] ? skb_dequeue+0x1c/0x180 [ 78.282789][ T8859] skb_dequeue+0x1c/0x180 [ 78.287110][ T8859] skb_queue_purge+0x21/0x30 [ 78.291686][ T8859] l2cap_chan_del+0x5f3/0xaa0 [ 78.296354][ T8859] l2cap_chan_close+0x1bc/0xaf0 [ 78.301251][ T8859] ? l2cap_rx+0x1fb0/0x1fb0 [ 78.305784][ T8859] ? __mutex_unlock_slowpath+0xe2/0x610 [ 78.311325][ T8859] ? wait_for_completion_io+0x260/0x260 [ 78.316871][ T8859] ? __local_bh_enable_ip+0x9c/0x110 [ 78.322142][ T8859] l2cap_sock_shutdown+0x3e7/0x1100 [ 78.327354][ T8859] ? l2cap_sock_suspend_cb+0x80/0x80 [ 78.332624][ T8859] ? find_held_lock+0x2d/0x110 [ 78.337386][ T8859] ? l2cap_sock_release+0x65/0x200 [ 78.342483][ T8859] ? lock_downgrade+0x6d0/0x6d0 [ 78.347340][ T8859] ? do_raw_read_unlock+0x70/0x70 [ 78.352369][ T8859] l2cap_sock_release+0x72/0x200 [ 78.357292][ T8859] __sock_release+0xcd/0x280 [ 78.361882][ T8859] sock_close+0x18/0x20 [ 78.366115][ T8859] __fput+0x283/0x920 [ 78.370097][ T8859] ? __sock_release+0x280/0x280 [ 78.374928][ T8859] task_work_run+0xdd/0x190 [ 78.379429][ T8859] exit_to_user_mode_prepare+0x1f0/0x200 [ 78.385056][ T8859] syscall_exit_to_user_mode+0x19/0x50 [ 78.390506][ T8859] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 78.396380][ T8859] RIP: 0033:0x417ab1 [ 78.400274][ T8859] Code: 75 14 b8 03 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 a4 1a 00 00 c3 48 83 ec 08 e8 0a fc ff ff 48 89 04 24 b8 03 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 53 fc ff ff 48 89 d0 48 83 c4 08 48 3d 01 [ 78.419887][ T8859] RSP: 002b:00007ffddf9b1220 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 [ 78.428287][ T8859] RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000417ab1 [ 78.436243][ T8859] RDX: fffffffffffffff7 RSI: 00000000011a0540 RDI: 0000000000000004 [ 78.444201][ T8859] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 78.452162][ T8859] R10: 00007ffddf9b1300 R11: 0000000000000293 R12: ffffffffffffffff [ 78.460143][ T8859] R13: 0000000000013152 R14: 00000000000003e8 R15: 000000000119c034 2020/12/10 06:19:41 executed programs: 49 [ 79.957448][ T4353] Bluetooth: hci0: command 0x041b tx timeout [ 82.037320][ T18] Bluetooth: hci0: command 0x040f tx timeout [ 84.117493][ T18] Bluetooth: hci0: command 0x0419 tx timeout 2020/12/10 06:19:46 executed programs: 200