[ OK ] Started Getty on tty2. [ OK ] Started Getty on tty1. [ OK ] Started Serial Getty on ttyS0. [ 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. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.25' (ECDSA) to the list of known hosts. 2021/02/14 20:25:28 parsed 1 programs 2021/02/14 20:25:28 executed programs: 0 syzkaller login: [ 58.861542][ T8454] IPVS: ftp: loaded support on port[0] = 21 [ 58.984094][ T8454] chnl_net:caif_netlink_parms(): no params data found [ 59.051742][ T8454] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.060149][ T8454] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.067970][ T8454] device bridge_slave_0 entered promiscuous mode [ 59.078036][ T8454] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.085873][ T8454] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.093812][ T8454] device bridge_slave_1 entered promiscuous mode [ 59.112472][ T8454] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.123579][ T8454] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.144472][ T8454] team0: Port device team_slave_0 added [ 59.152646][ T8454] team0: Port device team_slave_1 added [ 59.175289][ T8454] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 59.187278][ T8454] 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. [ 59.220346][ T8454] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 59.234129][ T8454] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 59.241397][ T8454] 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. [ 59.268561][ T8454] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 59.295025][ T8454] device hsr_slave_0 entered promiscuous mode [ 59.301843][ T8454] device hsr_slave_1 entered promiscuous mode [ 59.392358][ T8454] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 59.408374][ T8454] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 59.417624][ T8454] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 59.427508][ T8454] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 59.448937][ T8454] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.456239][ T8454] bridge0: port 2(bridge_slave_1) entered forwarding state [ 59.464698][ T8454] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.472306][ T8454] bridge0: port 1(bridge_slave_0) entered forwarding state [ 59.516908][ T8454] 8021q: adding VLAN 0 to HW filter on device bond0 [ 59.531932][ T3224] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 59.543538][ T3224] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.552141][ T3224] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.562055][ T3224] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 59.575044][ T8454] 8021q: adding VLAN 0 to HW filter on device team0 [ 59.586855][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 59.596361][ T19] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.603604][ T19] bridge0: port 1(bridge_slave_0) entered forwarding state [ 59.630925][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 59.639763][ T19] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.647177][ T19] bridge0: port 2(bridge_slave_1) entered forwarding state [ 59.656705][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 59.666055][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 59.674925][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 59.685848][ T3679] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 59.697167][ T34] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 59.707164][ T8454] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 59.726849][ T3224] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 59.735183][ T3224] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 59.749096][ T8454] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 59.767296][ T34] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 59.789811][ T8454] device veth0_vlan entered promiscuous mode [ 59.797625][ T3679] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 59.806662][ T3679] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 59.814908][ T3679] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 59.827645][ T8454] device veth1_vlan entered promiscuous mode [ 59.846595][ T3679] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 59.855415][ T3679] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 59.863745][ T3679] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 59.874649][ T8454] device veth0_macvtap entered promiscuous mode [ 59.883945][ T8454] device veth1_macvtap entered promiscuous mode [ 59.899768][ T8454] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 59.908184][ T3224] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 59.918126][ T3224] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 59.931987][ T8454] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 59.940774][ T3679] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 59.951801][ T8454] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.961421][ T8454] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.970635][ T8454] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.979727][ T8454] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 60.057957][ T52] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 60.067573][ T52] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 60.099081][ T3000] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 60.109559][ T200] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 60.118051][ T200] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 60.128888][ T3000] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 60.483327][ T8721] INFO: trying to register non-static key. [ 60.489440][ T8721] the code is fine but needs lockdep annotation. [ 60.495849][ T8721] turning off the locking correctness validator. [ 60.502332][ T8721] CPU: 0 PID: 8721 Comm: syz-executor.0 Not tainted 5.11.0-rc7-syzkaller #0 [ 60.510990][ T8721] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.521031][ T8721] Call Trace: [ 60.524319][ T8721] dump_stack+0x107/0x163 [ 60.528746][ T8721] register_lock_class+0x1041/0x1100 [ 60.534025][ T8721] ? find_held_lock+0x2d/0x110 [ 60.538779][ T8721] ? is_dynamic_key+0x1a0/0x1a0 [ 60.543623][ T8721] ? try_to_wake_up+0x62d/0x14a0 [ 60.548914][ T8721] __lock_acquire+0x101/0x54f0 [ 60.553842][ T8721] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 60.559815][ T8721] lock_acquire+0x1a8/0x720 [ 60.564542][ T8721] ? skb_dequeue+0x1c/0x180 [ 60.569296][ T8721] ? lock_release+0x710/0x710 [ 60.574091][ T8721] ? __queue_work+0x63c/0xf00 [ 60.578761][ T8721] ? _raw_spin_lock_irqsave+0x4e/0x50 [ 60.584140][ T8721] _raw_spin_lock_irqsave+0x39/0x50 [ 60.589340][ T8721] ? skb_dequeue+0x1c/0x180 [ 60.593825][ T8721] skb_dequeue+0x1c/0x180 [ 60.598137][ T8721] skb_queue_purge+0x21/0x30 [ 60.602710][ T8721] l2cap_chan_del+0x5f3/0xa80 [ 60.607413][ T8721] l2cap_chan_close+0x1bc/0xaf0 [ 60.612268][ T8721] ? l2cap_rx+0x1fb0/0x1fb0 [ 60.616841][ T8721] ? __mutex_unlock_slowpath+0xe2/0x610 [ 60.622372][ T8721] ? wait_for_completion_io+0x260/0x260 [ 60.627928][ T8721] ? __local_bh_enable_ip+0xa0/0x110 [ 60.633201][ T8721] l2cap_sock_shutdown+0x3e7/0x1100 [ 60.638421][ T8721] ? l2cap_sock_suspend_cb+0x80/0x80 [ 60.643717][ T8721] ? find_held_lock+0x2d/0x110 [ 60.648468][ T8721] ? l2cap_sock_release+0x65/0x200 [ 60.653566][ T8721] ? lock_downgrade+0x6d0/0x6d0 [ 60.658406][ T8721] ? do_raw_read_unlock+0x70/0x70 [ 60.663419][ T8721] l2cap_sock_release+0x72/0x200 [ 60.668349][ T8721] __sock_release+0xcd/0x280 [ 60.672929][ T8721] sock_close+0x18/0x20 [ 60.677089][ T8721] __fput+0x283/0x920 [ 60.681058][ T8721] ? __sock_release+0x280/0x280 [ 60.685982][ T8721] task_work_run+0xdd/0x190 [ 60.690494][ T8721] get_signal+0x1c7f/0x20f0 [ 60.694985][ T8721] ? l2cap_sock_connect+0x356/0x6c0 [ 60.700480][ T8721] ? __local_bh_enable_ip+0xa0/0x110 [ 60.705765][ T8721] ? l2cap_sock_recv_cb+0x1e0/0x1e0 [ 60.710967][ T8721] ? kick_process+0xe0/0x180 [ 60.715561][ T8721] arch_do_signal_or_restart+0x2a8/0x1eb0 [ 60.721289][ T8721] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 60.727518][ T8721] ? fput_many.part.0+0xc6/0x170 [ 60.732443][ T8721] ? fput+0x3b/0x50 [ 60.736255][ T8721] ? copy_siginfo_to_user32+0xa0/0xa0 [ 60.741612][ T8721] ? __sys_connect_file+0x1a0/0x1a0 [ 60.746969][ T8721] ? __do_sys_futex+0x2a2/0x470 [ 60.751824][ T8721] ? __do_sys_futex+0x2ab/0x470 [ 60.756681][ T8721] exit_to_user_mode_prepare+0x148/0x250 [ 60.762318][ T8721] syscall_exit_to_user_mode+0x19/0x50 [ 60.767872][ T8721] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 60.773749][ T8721] RIP: 0033:0x465d99 [ 60.777713][ T8721] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 [ 60.798040][ T8721] RSP: 002b:00007efc97dec188 EFLAGS: 00000246 ORIG_RAX: 000000000000002a [ 60.806438][ T8721] RAX: fffffffffffffffc RBX: 000000000056c008 RCX: 0000000000465d99 [ 60.814397][ T8721] RDX: 000000000000000e RSI: 0000000020000040 RDI: 0000000000000007 [ 60.822361][ T8721] RBP: 00000000004bcf27 R08: 0000000000000000 R09: 0000000000000000 [ 60.830353][ T8721] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c008 [ 60.838319][ T8721] R13: 00007ffdd1fee8df R14: 00007efc97dec300 R15: 0000000000022000 [ 60.860658][ T3000] Bluetooth: hci0: command 0x0409 tx timeout 2021/02/14 20:25:33 executed programs: 70 [ 62.939581][ T34] Bluetooth: hci0: command 0x041b tx timeout [ 65.019582][ T3679] Bluetooth: hci0: command 0x040f tx timeout [ 67.099115][ T34] Bluetooth: hci0: command 0x0419 tx timeout 2021/02/14 20:25:38 executed programs: 221 [ 69.188974][ T3000] Bluetooth: hci0: command 0x0405 tx timeout