[ 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 '10.128.0.97' (ECDSA) to the list of known hosts. 2020/11/21 04:18:27 parsed 1 programs 2020/11/21 04:18:27 executed programs: 0 syzkaller login: [ 39.279539] IPVS: ftp: loaded support on port[0] = 21 [ 39.400749] chnl_net:caif_netlink_parms(): no params data found [ 39.535485] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.542217] bridge0: port 1(bridge_slave_0) entered disabled state [ 39.550592] device bridge_slave_0 entered promiscuous mode [ 39.559008] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.566281] bridge0: port 2(bridge_slave_1) entered disabled state [ 39.573744] device bridge_slave_1 entered promiscuous mode [ 39.591159] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 39.600099] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 39.619383] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 39.626910] team0: Port device team_slave_0 added [ 39.632404] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 39.640161] team0: Port device team_slave_1 added [ 39.655387] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 39.661660] 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. [ 39.686989] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 39.698867] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 39.705248] 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. [ 39.730677] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 39.741749] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 39.749491] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 39.769036] device hsr_slave_0 entered promiscuous mode [ 39.774761] device hsr_slave_1 entered promiscuous mode [ 39.780819] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 39.788098] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 39.857223] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.863711] bridge0: port 2(bridge_slave_1) entered forwarding state [ 39.870495] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.876945] bridge0: port 1(bridge_slave_0) entered forwarding state [ 39.909786] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 39.916951] 8021q: adding VLAN 0 to HW filter on device bond0 [ 39.926246] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 39.935651] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 39.944954] bridge0: port 1(bridge_slave_0) entered disabled state [ 39.951935] bridge0: port 2(bridge_slave_1) entered disabled state [ 39.960077] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 39.971224] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 39.977491] 8021q: adding VLAN 0 to HW filter on device team0 [ 39.987399] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 39.995502] bridge0: port 1(bridge_slave_0) entered blocking state [ 40.001849] bridge0: port 1(bridge_slave_0) entered forwarding state [ 40.011686] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 40.020161] bridge0: port 2(bridge_slave_1) entered blocking state [ 40.026567] bridge0: port 2(bridge_slave_1) entered forwarding state [ 40.043619] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 40.051281] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 40.059585] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 40.070130] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 40.081667] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 40.094263] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 40.100291] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 40.109108] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 40.123247] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 40.134007] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 40.140573] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 40.148343] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 40.162306] IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready [ 40.172213] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 40.207853] IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready [ 40.215327] IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready [ 40.221841] IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready [ 40.232984] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 40.241222] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 40.248956] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 40.258635] device veth0_vlan entered promiscuous mode [ 40.267756] device veth1_vlan entered promiscuous mode [ 40.273958] IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready [ 40.282355] IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready [ 40.295141] IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready [ 40.305019] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 40.312274] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 40.320617] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 40.330441] device veth0_macvtap entered promiscuous mode [ 40.337573] IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready [ 40.345888] device veth1_macvtap entered promiscuous mode [ 40.355583] IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready [ 40.366031] IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready [ 40.377336] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 40.384878] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 40.395536] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 40.405777] IPv6: ADDRCONF(NETDEV_UP): batadv_slave_1: link is not ready [ 40.412920] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 40.419657] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 40.427944] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 40.544511] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 40.551181] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 40.569866] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 40.575513] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready [ 40.586665] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 40.590083] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 40.601074] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 40.608269] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 41.323419] Bluetooth: hci0: command 0x0409 tx timeout [ 42.762178] INFO: trying to register non-static key. [ 42.767300] the code is fine but needs lockdep annotation. [ 42.772932] turning off the locking correctness validator. [ 42.778535] CPU: 0 PID: 8840 Comm: syz-executor.0 Not tainted 4.19.158-syzkaller #0 [ 42.786320] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.795668] Call Trace: [ 42.798242] dump_stack+0x1fc/0x2fe [ 42.801865] register_lock_class+0xe76/0x11c0 [ 42.806355] ? check_preemption_disabled+0x41/0x280 [ 42.811367] ? static_obj+0x50/0x50 [ 42.814982] ? resched_curr+0xc9/0x320 [ 42.818857] ? try_to_wake_up+0x733/0x1050 [ 42.823070] __lock_acquire+0x17d/0x3ff0 [ 42.827122] ? trace_hardirqs_off+0x64/0x200 [ 42.831527] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 42.836629] ? try_to_wake_up+0x733/0x1050 [ 42.840854] ? mark_held_locks+0xf0/0xf0 [ 42.844913] ? __queue_work+0x5f1/0x1100 [ 42.848954] ? lock_downgrade+0x720/0x720 [ 42.853077] ? lock_acquire+0x170/0x3c0 [ 42.857049] ? ___preempt_schedule+0x16/0x18 [ 42.861447] lock_acquire+0x170/0x3c0 [ 42.865235] ? skb_dequeue+0x1c/0x180 [ 42.869017] _raw_spin_lock_irqsave+0x8c/0xc0 [ 42.873490] ? skb_dequeue+0x1c/0x180 [ 42.877267] skb_dequeue+0x1c/0x180 [ 42.880884] skb_queue_purge+0x21/0x30 [ 42.884753] l2cap_chan_del+0x690/0xa50 [ 42.888708] l2cap_chan_close+0x1b5/0x950 [ 42.892846] ? __set_monitor_timer+0x200/0x200 [ 42.897407] ? wait_for_completion_io+0x10/0x10 [ 42.902076] ? mark_held_locks+0xa6/0xf0 [ 42.906115] ? __local_bh_enable_ip+0x159/0x270 [ 42.910763] l2cap_sock_shutdown+0x339/0xe10 [ 42.915151] ? l2cap_sock_getname+0x510/0x510 [ 42.919638] ? l2cap_sock_release+0x6a/0x290 [ 42.924039] ? lock_downgrade+0x720/0x720 [ 42.928170] ? do_raw_write_lock+0xb8/0x1e0 [ 42.932483] l2cap_sock_release+0x77/0x290 [ 42.936697] __sock_release+0xcd/0x2a0 [ 42.940572] ? __sock_release+0x2a0/0x2a0 [ 42.944698] sock_close+0x15/0x20 [ 42.948142] __fput+0x2ce/0x890 [ 42.951428] task_work_run+0x148/0x1c0 [ 42.955297] get_signal+0x1b64/0x1f70 [ 42.959075] ? __local_bh_enable_ip+0x159/0x270 [ 42.963722] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 42.968292] do_signal+0x8f/0x1670 [ 42.971826] ? kick_process+0xe4/0x170 [ 42.975688] ? setup_sigcontext+0x820/0x820 [ 42.979996] ? l2cap_sock_accept+0x550/0x550 [ 42.984383] ? fput+0xf2/0x190 [ 42.987571] ? __sys_connect+0x140/0x2c0 [ 42.991620] ? __ia32_sys_accept+0xb0/0xb0 [ 42.995835] ? put_timespec64+0xcb/0x120 [ 42.999881] ? __se_compat_sys_gettimeofday+0x1b0/0x1b0 [ 43.005232] ? __se_sys_clock_gettime+0x124/0x1e0 [ 43.010071] ? exit_to_usermode_loop+0x36/0x2a0 [ 43.014727] exit_to_usermode_loop+0x204/0x2a0 [ 43.019300] do_syscall_64+0x538/0x620 [ 43.023169] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 43.028335] RIP: 0033:0x45deb9 [ 43.031506] Code: 0d b4 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 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 43.050385] RSP: 002b:00007fea8fd18c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002a [ 43.058071] RAX: fffffffffffffffc RBX: 0000000000002200 RCX: 000000000045deb9 [ 43.065318] RDX: 000000000000000e RSI: 0000000020000040 RDI: 0000000000000006 [ 43.072582] RBP: 000000000118c008 R08: 0000000000000000 R09: 0000000000000000 [ 43.079830] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bfd4 [ 43.087077] R13: 00007ffea27714af R14: 00007fea8fd199c0 R15: 000000000118bfd4 2020/11/21 04:18:32 executed programs: 103 [ 43.401300] Bluetooth: hci0: command 0x041b tx timeout [ 45.480973] Bluetooth: hci0: command 0x040f tx timeout [ 47.560349] Bluetooth: hci0: command 0x0419 tx timeout 2020/11/21 04:18:37 executed programs: 709 [ 49.639874] Bluetooth: hci0: command 0x0405 tx timeout