[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.10.22' (ECDSA) to the list of known hosts. 2020/08/08 17:05:42 parsed 1 programs 2020/08/08 17:05:43 executed programs: 0 syzkaller login: [ 40.362338] audit: type=1400 audit(1596906343.276:8): avc: denied { execmem } for pid=6502 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 40.405632] IPVS: ftp: loaded support on port[0] = 21 [ 40.484790] chnl_net:caif_netlink_parms(): no params data found [ 40.561969] bridge0: port 1(bridge_slave_0) entered blocking state [ 40.568725] bridge0: port 1(bridge_slave_0) entered disabled state [ 40.577045] device bridge_slave_0 entered promiscuous mode [ 40.585870] bridge0: port 2(bridge_slave_1) entered blocking state [ 40.592597] bridge0: port 2(bridge_slave_1) entered disabled state [ 40.599756] device bridge_slave_1 entered promiscuous mode [ 40.618062] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 40.627105] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 40.645844] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 40.653491] team0: Port device team_slave_0 added [ 40.659063] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 40.667210] team0: Port device team_slave_1 added [ 40.682772] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 40.689172] 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. [ 40.714644] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 40.726311] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 40.733372] 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. [ 40.758847] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 40.769554] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 40.777276] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 40.797329] device hsr_slave_0 entered promiscuous mode [ 40.803129] device hsr_slave_1 entered promiscuous mode [ 40.810270] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 40.817468] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 40.884927] bridge0: port 2(bridge_slave_1) entered blocking state [ 40.891585] bridge0: port 2(bridge_slave_1) entered forwarding state [ 40.898511] bridge0: port 1(bridge_slave_0) entered blocking state [ 40.904935] bridge0: port 1(bridge_slave_0) entered forwarding state [ 40.938816] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 40.946017] 8021q: adding VLAN 0 to HW filter on device bond0 [ 40.955531] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 40.965785] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 40.985043] bridge0: port 1(bridge_slave_0) entered disabled state [ 40.992435] bridge0: port 2(bridge_slave_1) entered disabled state [ 40.999362] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 41.011216] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 41.017536] 8021q: adding VLAN 0 to HW filter on device team0 [ 41.027124] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 41.035149] bridge0: port 1(bridge_slave_0) entered blocking state [ 41.041594] bridge0: port 1(bridge_slave_0) entered forwarding state [ 41.052169] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 41.060590] bridge0: port 2(bridge_slave_1) entered blocking state [ 41.066941] bridge0: port 2(bridge_slave_1) entered forwarding state [ 41.084805] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 41.092756] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 41.104581] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 41.117513] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 41.128909] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 41.139721] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 41.147785] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 41.156066] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 41.164440] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 41.176822] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 41.184682] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 41.191738] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 41.202576] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 41.216237] IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready [ 41.227905] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 41.259334] IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready [ 41.268058] IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready [ 41.275321] IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready [ 41.285190] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 41.293326] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 41.300434] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 41.309018] device veth0_vlan entered promiscuous mode [ 41.318538] device veth1_vlan entered promiscuous mode [ 41.324819] IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready [ 41.333730] IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready [ 41.345938] IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready [ 41.355643] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 41.363786] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 41.372102] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 41.382486] device veth0_macvtap entered promiscuous mode [ 41.388738] IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready [ 41.397533] device veth1_macvtap entered promiscuous mode [ 41.407756] IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready [ 41.417217] IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready [ 41.427321] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 41.434570] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 41.445992] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 41.456121] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 41.463108] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 43.008856] INFO: trying to register non-static key. [ 43.013997] the code is fine but needs lockdep annotation. [ 43.019640] turning off the locking correctness validator. [ 43.025334] CPU: 0 PID: 6791 Comm: syz-executor.0 Not tainted 4.19.138-syzkaller #0 [ 43.033171] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.042523] Call Trace: [ 43.045104] dump_stack+0x1fc/0x2fe [ 43.048840] register_lock_class+0xe76/0x11c0 [ 43.053353] ? check_preemption_disabled+0x41/0x280 [ 43.058357] ? static_obj+0x50/0x50 [ 43.061971] ? resched_curr+0xfa/0x320 [ 43.066034] ? try_to_wake_up+0x733/0x1050 [ 43.071142] __lock_acquire+0x17d/0x3ff0 [ 43.075336] ? trace_hardirqs_off+0x64/0x200 [ 43.079745] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 43.084840] ? try_to_wake_up+0x733/0x1050 [ 43.089059] ? mark_held_locks+0xf0/0xf0 [ 43.093165] ? __queue_work+0x5f1/0x1100 [ 43.097263] ? lock_downgrade+0x720/0x720 [ 43.101395] ? lock_acquire+0x170/0x3c0 [ 43.105900] ? do_raw_spin_unlock+0x171/0x230 [ 43.110470] lock_acquire+0x170/0x3c0 [ 43.114257] ? skb_dequeue+0x1c/0x170 [ 43.118210] _raw_spin_lock_irqsave+0x8c/0xc0 [ 43.122701] ? skb_dequeue+0x1c/0x170 [ 43.126483] skb_dequeue+0x1c/0x170 [ 43.130092] skb_queue_purge+0x21/0x30 [ 43.133961] l2cap_chan_del+0x616/0x8e0 [ 43.137965] l2cap_chan_close+0x108/0x820 [ 43.142093] ? __set_monitor_timer+0x130/0x130 [ 43.146654] ? wait_for_completion_io+0x10/0x10 [ 43.151303] ? mark_held_locks+0xa6/0xf0 [ 43.155346] ? __local_bh_enable_ip+0x159/0x270 [ 43.160009] l2cap_sock_shutdown+0x85e/0xbd0 [ 43.164427] ? l2cap_skb_msg_name+0x120/0x120 [ 43.168928] ? l2cap_sock_release+0x56/0x190 [ 43.173327] ? lock_downgrade+0x720/0x720 [ 43.177596] ? do_raw_write_lock+0xb8/0x1e0 [ 43.181920] l2cap_sock_release+0x63/0x190 [ 43.186146] __sock_release+0xcd/0x2a0 [ 43.190020] ? __sock_release+0x2a0/0x2a0 [ 43.194152] sock_close+0x15/0x20 [ 43.197584] __fput+0x2ce/0x890 [ 43.200894] task_work_run+0x148/0x1c0 [ 43.204764] get_signal+0x1b64/0x1f70 [ 43.208556] ? __local_bh_enable_ip+0x159/0x270 [ 43.213271] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 43.218310] do_signal+0x8f/0x1670 [ 43.221834] ? kick_process+0xe4/0x170 [ 43.226092] ? setup_sigcontext+0x820/0x820 [ 43.230482] ? l2cap_sock_accept+0x4d0/0x4d0 [ 43.234891] ? fput+0xf2/0x190 [ 43.238067] ? __sys_connect+0x140/0x2c0 [ 43.242111] ? __ia32_sys_accept+0xb0/0xb0 [ 43.246357] ? put_timespec64+0xcb/0x120 [ 43.250403] ? __se_compat_sys_gettimeofday+0x1b0/0x1b0 [ 43.255765] ? __se_sys_clock_gettime+0x124/0x1e0 [ 43.260585] ? exit_to_usermode_loop+0x36/0x2a0 [ 43.265234] exit_to_usermode_loop+0x204/0x2a0 [ 43.270312] do_syscall_64+0x538/0x620 [ 43.274201] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 43.279372] RIP: 0033:0x45ce69 [ 43.282545] 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 [ 43.301428] RSP: 002b:00007f97d48aac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002a [ 43.309115] RAX: fffffffffffffffc RBX: 0000000000002100 RCX: 000000000045ce69 [ 43.316365] RDX: 000000000000000e RSI: 0000000020000040 RDI: 0000000000000004 [ 43.323619] RBP: 000000000118c000 R08: 0000000000000000 R09: 0000000000000000 [ 43.330897] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bfcc [ 43.338338] R13: 00007ffeeee9f72f R14: 00007f97d48ab9c0 R15: 000000000118bfcc [ 44.677710] Bluetooth: hci0: command 0x0409 tx timeout 2020/08/08 17:05:48 executed programs: 131 [ 46.757225] Bluetooth: hci0: command 0x041b tx timeout [ 48.835598] Bluetooth: hci0: command 0x040f tx timeout 2020/08/08 17:05:53 executed programs: 432 [ 50.914734] Bluetooth: hci0: command 0x0419 tx timeout [ 52.993988] Bluetooth: hci0: command 0x0405 tx timeout