[ 48.923690][ T936] bridge0: port 1(bridge_slave_0) entered disabled state [ 48.958720][ T936] device veth1_macvtap left promiscuous mode [ 48.958845][ T936] device veth0_macvtap left promiscuous mode [ 48.958951][ T936] device veth1_vlan left promiscuous mode [ 48.959095][ T936] device veth0_vlan left promiscuous mode [ 49.099926][ T936] team0 (unregistering): Port device team_slave_1 removed [ 49.103931][ T936] team0 (unregistering): Port device team_slave_0 removed [ 49.114689][ T936] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 49.133765][ T936] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 49.181964][ T936] bond0 (unregistering): Released all slaves Warning: Permanently added '10.128.0.63' (ECDSA) to the list of known hosts. 2022/05/29 20:44:17 parsed 1 programs 2022/05/29 20:44:17 executed programs: 0 [ 62.508481][ T3998] cgroup: Unknown subsys name 'net' [ 62.513814][ T3998] cgroup: Unknown subsys name 'rlimit' [ 65.686222][ T49] Bluetooth: hci0: Opcode 0x c03 failed: -110 [ 66.088169][ T1228] ieee802154 phy0 wpan0: encryption failed: -22 [ 66.088201][ T1228] ieee802154 phy1 wpan1: encryption failed: -22 [ 69.846204][ T49] Bluetooth: hci0: Opcode 0x c03 failed: -110 [ 71.208118][ T143] cfg80211: failed to load regulatory.db [ 74.006154][ T49] Bluetooth: hci0: Opcode 0x c03 failed: -110 [ 78.166162][ T49] Bluetooth: hci0: Opcode 0x c03 failed: -110 [ 80.250747][ T3610] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 80.251681][ T3610] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 80.252143][ T3610] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 80.253017][ T3610] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 80.253642][ T3610] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 80.253872][ T3610] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 80.328001][ T4073] chnl_net:caif_netlink_parms(): no params data found [ 80.359136][ T4073] bridge0: port 1(bridge_slave_0) entered blocking state [ 80.359202][ T4073] bridge0: port 1(bridge_slave_0) entered disabled state [ 80.359720][ T4073] device bridge_slave_0 entered promiscuous mode [ 80.360964][ T4073] bridge0: port 2(bridge_slave_1) entered blocking state [ 80.361020][ T4073] bridge0: port 2(bridge_slave_1) entered disabled state [ 80.361478][ T4073] device bridge_slave_1 entered promiscuous mode [ 80.407775][ T4073] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 80.409926][ T4073] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 80.437059][ T4073] team0: Port device team_slave_0 added [ 80.438276][ T4073] team0: Port device team_slave_1 added [ 80.459136][ T4073] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 80.459141][ T4073] 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. [ 80.459146][ T4073] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 80.460142][ T4073] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 80.460145][ T4073] 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. [ 80.460149][ T4073] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 80.520870][ T4073] device hsr_slave_0 entered promiscuous mode [ 80.544931][ T4073] device hsr_slave_1 entered promiscuous mode [ 80.607918][ T4073] bridge0: port 2(bridge_slave_1) entered blocking state [ 80.607948][ T4073] bridge0: port 2(bridge_slave_1) entered forwarding state [ 80.608028][ T4073] bridge0: port 1(bridge_slave_0) entered blocking state [ 80.608096][ T4073] bridge0: port 1(bridge_slave_0) entered forwarding state [ 80.641825][ T4073] 8021q: adding VLAN 0 to HW filter on device bond0 [ 80.650432][ T143] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 80.654101][ T143] bridge0: port 1(bridge_slave_0) entered disabled state [ 80.661454][ T143] bridge0: port 2(bridge_slave_1) entered disabled state [ 80.662991][ T143] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 80.668376][ T4073] 8021q: adding VLAN 0 to HW filter on device team0 [ 80.672795][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 80.673157][ T23] bridge0: port 1(bridge_slave_0) entered blocking state [ 80.673211][ T23] bridge0: port 1(bridge_slave_0) entered forwarding state [ 80.677294][ T1155] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 80.677592][ T1155] bridge0: port 2(bridge_slave_1) entered blocking state [ 80.677635][ T1155] bridge0: port 2(bridge_slave_1) entered forwarding state [ 80.688764][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 80.689182][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 80.693147][ T1155] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 80.711177][ T1155] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 80.711585][ T1155] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 80.714513][ T4073] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 80.741292][ T1133] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 80.741366][ T1133] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 80.748305][ T4073] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 80.938334][ T1155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 80.938771][ T1155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 80.939084][ T1155] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 80.939337][ T1155] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 80.940427][ T4073] device veth0_vlan entered promiscuous mode [ 80.943591][ T4073] device veth1_vlan entered promiscuous mode [ 80.955631][ T1155] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 80.956174][ T1155] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 80.956832][ T1155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 80.960966][ T4073] device veth0_macvtap entered promiscuous mode [ 80.963991][ T4073] device veth1_macvtap entered promiscuous mode [ 80.975622][ T4073] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 80.975699][ T1133] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 80.981486][ T1133] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 80.985046][ T4073] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 80.985262][ T1155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 81.049996][ T8] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 81.050006][ T8] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 81.051416][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 81.069404][ T1548] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 81.069413][ T1548] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 81.070831][ T1133] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 81.989479][ T4093] [ 81.989484][ T4093] ============================================ [ 81.989485][ T4093] WARNING: possible recursive locking detected [ 81.989487][ T4093] 5.18.0-syzkaller #0 Not tainted [ 81.989490][ T4093] -------------------------------------------- [ 81.989491][ T4093] syz-executor.0/4093 is trying to acquire lock: [ 81.989495][ T4093] ffff888077966130 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: rfcomm_sk_state_change+0x99/0x320 [ 81.989512][ T4093] [ 81.989512][ T4093] but task is already holding lock: [ 81.989514][ T4093] ffff888077966130 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: rfcomm_sock_shutdown+0x41/0x1b0 [ 81.989521][ T4093] [ 81.989521][ T4093] other info that might help us debug this: [ 81.989522][ T4093] Possible unsafe locking scenario: [ 81.989522][ T4093] [ 81.989523][ T4093] CPU0 [ 81.989524][ T4093] ---- [ 81.989525][ T4093] lock(sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM); [ 81.989528][ T4093] lock(sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM); [ 81.989530][ T4093] [ 81.989530][ T4093] *** DEADLOCK *** [ 81.989530][ T4093] [ 81.989531][ T4093] May be due to missing lock nesting notation [ 81.989531][ T4093] [ 81.989532][ T4093] 4 locks held by syz-executor.0/4093: [ 81.989534][ T4093] #0: ffff8880732d3810 (&sb->s_type->i_mutex_key#9){+.+.}-{3:3}, at: __sock_release+0x76/0x270 [ 81.989545][ T4093] #1: ffff888077966130 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: rfcomm_sock_shutdown+0x41/0x1b0 [ 81.989551][ T4093] #2: ffffffff8c695268 (rfcomm_mutex){+.+.}-{3:3}, at: rfcomm_dlc_close+0x25/0x200 [ 81.989558][ T4093] #3: ffff88801a8d6928 (&d->lock){+.+.}-{3:3}, at: __rfcomm_dlc_close+0xff/0x770 [ 81.989564][ T4093] [ 81.989564][ T4093] stack backtrace: [ 81.989566][ T4093] CPU: 1 PID: 4093 Comm: syz-executor.0 Not tainted 5.18.0-syzkaller #0 [ 81.989570][ T4093] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 81.989572][ T4093] Call Trace: [ 81.989574][ T4093] [ 81.989576][ T4093] dump_stack_lvl+0x57/0x7d [ 81.989583][ T4093] __lock_acquire.cold+0x1e0/0x3a9 [ 81.989589][ T4093] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 81.989597][ T4093] lock_acquire+0x1ab/0x570 [ 81.989601][ T4093] ? rfcomm_sk_state_change+0x99/0x320 [ 81.989604][ T4093] ? lock_release+0x780/0x780 [ 81.989608][ T4093] ? mutex_lock_io_nested+0x1190/0x1190 [ 81.989615][ T4093] ? lockdep_hardirqs_on+0x79/0x100 [ 81.989620][ T4093] ? _raw_spin_unlock_irqrestore+0x3d/0x70 [ 81.989623][ T4093] ? del_timer+0xb3/0xf0 [ 81.989629][ T4093] lock_sock_nested+0x2b/0xd0 [ 81.989634][ T4093] ? rfcomm_sk_state_change+0x99/0x320 [ 81.989637][ T4093] rfcomm_sk_state_change+0x99/0x320 [ 81.989640][ T4093] __rfcomm_dlc_close+0x153/0x770 [ 81.989643][ T4093] rfcomm_dlc_close+0x1a4/0x200 [ 81.989646][ T4093] __rfcomm_sock_close+0x80/0x1f0 [ 81.989649][ T4093] ? rfcomm_sock_shutdown+0x41/0x1b0 [ 81.989652][ T4093] rfcomm_sock_shutdown+0xb9/0x1b0 [ 81.989655][ T4093] rfcomm_sock_release+0x4a/0x120 [ 81.989658][ T4093] __sock_release+0xbb/0x270 [ 81.989662][ T4093] sock_close+0xf/0x20 [ 81.989666][ T4093] __fput+0x1f5/0x8c0 [ 81.989673][ T4093] task_work_run+0xc0/0x160 [ 81.989678][ T4093] get_signal+0x19b/0x1db0 [ 81.989682][ T4093] ? find_held_lock+0x2d/0x110 [ 81.989686][ T4093] ? signal_setup_done+0x4a0/0x4a0 [ 81.989689][ T4093] ? rfcomm_sock_connect+0xf8/0x3b0 [ 81.989692][ T4093] ? lock_downgrade+0x6e0/0x6e0 [ 81.989696][ T4093] arch_do_signal_or_restart+0x88/0x1a10 [ 81.989703][ T4093] ? kick_process+0xf2/0x190 [ 81.989709][ T4093] ? task_work_add+0x13b/0x160 [ 81.989713][ T4093] ? get_sigframe_size+0x10/0x10 [ 81.989717][ T4093] ? __sys_connect+0x106/0x120 [ 81.989722][ T4093] ? __sys_connect_file+0x180/0x180 [ 81.989729][ T4093] exit_to_user_mode_prepare+0x15f/0x250 [ 81.989735][ T4093] syscall_exit_to_user_mode+0x19/0x50 [ 81.989739][ T4093] do_syscall_64+0x42/0x80 [ 81.989743][ T4093] entry_SYSCALL_64_after_hwframe+0x46/0xb0 [ 81.989747][ T4093] RIP: 0033:0x7ffb27489049 [ 81.989751][ T4093] 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 b8 ff ff ff f7 d8 64 89 01 48 [ 81.989754][ T4093] RSP: 002b:00007ffb28549168 EFLAGS: 00000246 ORIG_RAX: 000000000000002a [ 81.989758][ T4093] RAX: fffffffffffffffc RBX: 00007ffb2759bf60 RCX: 00007ffb27489049 [ 81.989761][ T4093] RDX: 000000000000005a RSI: 0000000020000000 RDI: 0000000000000004 [ 81.989763][ T4093] RBP: 00007ffb274e308d R08: 0000000000000000 R09: 0000000000000000 [ 81.989765][ T4093] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 81.989767][ T4093] R13: 00007ffcdcf463af R14: 00007ffb28549300 R15: 0000000000022000 [ 81.989771][ T4093] [ 82.326921][ T3620] Bluetooth: hci0: command 0x0409 tx timeout [ 84.406105][ T1155] Bluetooth: hci0: command 0x041b tx timeout [ 86.486269][ T23] Bluetooth: hci0: command 0x040f tx timeout [ 88.566123][ T143] Bluetooth: hci0: command 0x0419 tx timeout [ 90.646255][ T143] Bluetooth: hci0: command 0x0405 tx timeout