[ 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 '10.128.0.4' (ECDSA) to the list of known hosts. 2020/08/09 01:49:57 parsed 1 programs 2020/08/09 01:49:57 executed programs: 0 syzkaller login: [ 45.669796][ T6824] IPVS: ftp: loaded support on port[0] = 21 [ 45.773533][ T6824] chnl_net:caif_netlink_parms(): no params data found [ 45.823949][ T6824] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.832445][ T6824] bridge0: port 1(bridge_slave_0) entered disabled state [ 45.841247][ T6824] device bridge_slave_0 entered promiscuous mode [ 45.850942][ T6824] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.858788][ T6824] bridge0: port 2(bridge_slave_1) entered disabled state [ 45.866401][ T6824] device bridge_slave_1 entered promiscuous mode [ 45.888661][ T6824] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 45.899881][ T6824] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 45.921958][ T6824] team0: Port device team_slave_0 added [ 45.930033][ T6824] team0: Port device team_slave_1 added [ 45.947980][ T6824] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 45.954955][ T6824] 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. [ 45.981909][ T6824] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 45.995266][ T6824] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 46.002828][ T6824] 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. [ 46.029570][ T6824] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 46.054320][ T6824] device hsr_slave_0 entered promiscuous mode [ 46.061635][ T6824] device hsr_slave_1 entered promiscuous mode [ 46.147512][ T6824] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 46.160881][ T6824] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 46.170374][ T6824] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 46.184226][ T6824] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 46.207017][ T6824] bridge0: port 2(bridge_slave_1) entered blocking state [ 46.214229][ T6824] bridge0: port 2(bridge_slave_1) entered forwarding state [ 46.222179][ T6824] bridge0: port 1(bridge_slave_0) entered blocking state [ 46.229931][ T6824] bridge0: port 1(bridge_slave_0) entered forwarding state [ 46.269607][ T6824] 8021q: adding VLAN 0 to HW filter on device bond0 [ 46.283918][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 46.294550][ T5] bridge0: port 1(bridge_slave_0) entered disabled state [ 46.303429][ T5] bridge0: port 2(bridge_slave_1) entered disabled state [ 46.311945][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 46.324863][ T6824] 8021q: adding VLAN 0 to HW filter on device team0 [ 46.335572][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 46.344161][ T17] bridge0: port 1(bridge_slave_0) entered blocking state [ 46.351318][ T17] bridge0: port 1(bridge_slave_0) entered forwarding state [ 46.368941][ T2911] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 46.377501][ T2911] bridge0: port 2(bridge_slave_1) entered blocking state [ 46.384569][ T2911] bridge0: port 2(bridge_slave_1) entered forwarding state [ 46.404708][ T6824] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 46.416309][ T6824] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 46.430560][ T3914] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 46.439822][ T3914] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 46.448446][ T3914] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 46.458837][ T3914] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 46.477152][ T3914] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 46.484550][ T3914] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 46.492555][ T3914] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 46.500654][ T3914] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 46.512407][ T6824] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 46.530939][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 46.550304][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 46.559449][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 46.568693][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 46.579626][ T6824] device veth0_vlan entered promiscuous mode [ 46.591193][ T6824] device veth1_vlan entered promiscuous mode [ 46.610414][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 46.619451][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 46.629696][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 46.640943][ T6824] device veth0_macvtap entered promiscuous mode [ 46.652886][ T6824] device veth1_macvtap entered promiscuous mode [ 46.669517][ T6824] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 46.677846][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 46.687946][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 46.699393][ T6824] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 46.707218][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 46.720331][ T6824] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 46.729770][ T6824] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 46.739902][ T6824] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 46.749732][ T6824] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 48.328706][ T7090] INFO: trying to register non-static key. [ 48.334690][ T7090] the code is fine but needs lockdep annotation. [ 48.341008][ T7090] turning off the locking correctness validator. [ 48.347338][ T7090] CPU: 0 PID: 7090 Comm: syz-executor.0 Not tainted 5.8.0-syzkaller #0 [ 48.355585][ T7090] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.365627][ T7090] Call Trace: [ 48.368908][ T7090] dump_stack+0x1f0/0x31e [ 48.373242][ T7090] register_lock_class+0xf06/0x1520 [ 48.378423][ T7090] ? enqueue_entity+0x9a6/0x1200 [ 48.383338][ T7090] __lock_acquire+0xfa/0x2ab0 [ 48.388002][ T7090] ? trace_lock_release+0x137/0x1a0 [ 48.393195][ T7090] ? mark_lock+0x102/0x1b00 [ 48.397685][ T7090] lock_acquire+0x160/0x730 [ 48.402181][ T7090] ? skb_queue_purge+0x2e/0x1c0 [ 48.407012][ T7090] ? lockdep_hardirqs_on_prepare+0x445/0x6a0 [ 48.412986][ T7090] ? queue_delayed_work_on+0x149/0x1b0 [ 48.418417][ T7090] _raw_spin_lock_irqsave+0x9e/0xc0 [ 48.423610][ T7090] ? skb_queue_purge+0x2e/0x1c0 [ 48.428433][ T7090] skb_queue_purge+0x2e/0x1c0 [ 48.433104][ T7090] l2cap_chan_close+0x7bf/0xae0 [ 48.437951][ T7090] l2cap_sock_shutdown+0x39f/0x700 [ 48.443048][ T7090] l2cap_sock_release+0x63/0x190 [ 48.447979][ T7090] sock_close+0xd8/0x260 [ 48.452205][ T7090] ? sock_mmap+0x90/0x90 [ 48.456429][ T7090] __fput+0x34f/0x7b0 [ 48.460391][ T7090] task_work_run+0x137/0x1c0 [ 48.464971][ T7090] get_signal+0x15ab/0x1d30 [ 48.469464][ T7090] ? kick_process+0xc8/0x120 [ 48.474037][ T7090] ? fput_many+0x159/0x1a0 [ 48.478441][ T7090] arch_do_signal+0x33/0x610 [ 48.483007][ T7090] ? lock_is_held_type+0xb3/0xe0 [ 48.487944][ T7090] ? exit_to_user_mode_prepare+0x3d/0x1c0 [ 48.493646][ T7090] exit_to_user_mode_prepare+0x8d/0x1c0 [ 48.499189][ T7090] syscall_exit_to_user_mode+0x5e/0x1a0 [ 48.504721][ T7090] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 48.510598][ T7090] RIP: 0033:0x45ce69 [ 48.514476][ T7090] Code: 2d 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 fb b5 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 48.534076][ T7090] RSP: 002b:00007fc323ab9c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002a [ 48.542477][ T7090] RAX: fffffffffffffffc RBX: 0000000000002100 RCX: 000000000045ce69 [ 48.550442][ T7090] RDX: 000000000000000e RSI: 0000000020000040 RDI: 0000000000000004 [ 48.558417][ T7090] RBP: 000000000118c000 R08: 0000000000000000 R09: 0000000000000000 [ 48.566384][ T7090] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bfcc [ 48.574347][ T7090] R13: 00007ffe8233b12f R14: 00007fc323aba9c0 R15: 000000000118bfcc [ 49.916093][ T2911] Bluetooth: hci0: command 0x0409 tx timeout 2020/08/09 01:50:02 executed programs: 92 [ 51.994897][ T3914] Bluetooth: hci0: command 0x041b tx timeout [ 54.074052][ T3914] Bluetooth: hci0: command 0x040f tx timeout 2020/08/09 01:50:07 executed programs: 277 [ 56.153481][ T3914] Bluetooth: hci0: command 0x0419 tx timeout [ 58.232900][ T2911] Bluetooth: hci0: command 0x0405 tx timeout