[ 51.172410][ T8] bridge0: port 1(bridge_slave_0) entered disabled state [ 51.186034][ T8] device veth1_macvtap left promiscuous mode [ 51.192725][ T8] device veth0_macvtap left promiscuous mode [ 51.199431][ T8] device veth1_vlan left promiscuous mode [ 51.205339][ T8] device veth0_vlan left promiscuous mode [ 51.316914][ T8] team0 (unregistering): Port device team_slave_1 removed [ 51.333002][ T8] team0 (unregistering): Port device team_slave_0 removed [ 51.345201][ T8] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 51.358427][ T8] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 51.400441][ T8] bond0 (unregistering): Released all slaves Warning: Permanently added '10.128.1.71' (ECDSA) to the list of known hosts. 2022/07/29 00:22:40 parsed 1 programs 2022/07/29 00:22:40 executed programs: 0 [ 64.920399][ T4005] cgroup: Unknown subsys name 'net' [ 64.934192][ T4005] cgroup: Unknown subsys name 'rlimit' [ 65.960623][ T1236] ieee802154 phy0 wpan0: encryption failed: -22 [ 65.967266][ T1236] ieee802154 phy1 wpan1: encryption failed: -22 [ 68.118968][ T3609] Bluetooth: hci0: Opcode 0x c03 failed: -110 [ 71.080368][ T6] cfg80211: failed to load regulatory.db [ 72.278918][ T3609] Bluetooth: hci0: Opcode 0x c03 failed: -110 [ 76.438977][ T3609] Bluetooth: hci0: Opcode 0x c03 failed: -110 [ 78.523349][ T47] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 78.532037][ T47] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 78.540454][ T47] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 78.549333][ T47] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 78.557013][ T47] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 78.565638][ T47] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 78.635053][ T4069] chnl_net:caif_netlink_parms(): no params data found [ 78.671296][ T4069] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.678689][ T4069] bridge0: port 1(bridge_slave_0) entered disabled state [ 78.687267][ T4069] device bridge_slave_0 entered promiscuous mode [ 78.696104][ T4069] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.703518][ T4069] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.711621][ T4069] device bridge_slave_1 entered promiscuous mode [ 78.733137][ T4069] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 78.743933][ T4069] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 78.765671][ T4069] team0: Port device team_slave_0 added [ 78.773526][ T4069] team0: Port device team_slave_1 added [ 78.790916][ T4069] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 78.797881][ T4069] 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. [ 78.823983][ T4069] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 78.835918][ T4069] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 78.842918][ T4069] 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. [ 78.869261][ T4069] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 78.893613][ T4069] device hsr_slave_0 entered promiscuous mode [ 78.900597][ T4069] device hsr_slave_1 entered promiscuous mode [ 78.951627][ T4069] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.959119][ T4069] bridge0: port 2(bridge_slave_1) entered forwarding state [ 78.966431][ T4069] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.973790][ T4069] bridge0: port 1(bridge_slave_0) entered forwarding state [ 79.006538][ T4069] 8021q: adding VLAN 0 to HW filter on device bond0 [ 79.018531][ T3617] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 79.028072][ T3617] bridge0: port 1(bridge_slave_0) entered disabled state [ 79.036300][ T3617] bridge0: port 2(bridge_slave_1) entered disabled state [ 79.044752][ T3617] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 79.056602][ T4069] 8021q: adding VLAN 0 to HW filter on device team0 [ 79.066034][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 79.075093][ T6] bridge0: port 1(bridge_slave_0) entered blocking state [ 79.082184][ T6] bridge0: port 1(bridge_slave_0) entered forwarding state [ 79.102064][ T3619] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 79.111783][ T3619] bridge0: port 2(bridge_slave_1) entered blocking state [ 79.118899][ T3619] bridge0: port 2(bridge_slave_1) entered forwarding state [ 79.127514][ T3619] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 79.136650][ T3619] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 79.145005][ T3619] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 79.157468][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 79.165366][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 79.176631][ T4069] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 79.191111][ T3617] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 79.198664][ T3617] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 79.210833][ T4069] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 79.375254][ T4069] device veth0_vlan entered promiscuous mode [ 79.382706][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 79.391475][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 79.400625][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 79.408395][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 79.421196][ T4069] device veth1_vlan entered promiscuous mode [ 79.437316][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 79.445564][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 79.454157][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 79.465270][ T4069] device veth0_macvtap entered promiscuous mode [ 79.474251][ T4069] device veth1_macvtap entered promiscuous mode [ 79.487844][ T4069] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 79.496411][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 79.505341][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 79.516547][ T4069] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 79.524541][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 79.566668][ T8] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 79.575928][ T8] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 79.590565][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 79.602437][ T41] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 79.611003][ T41] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 79.620550][ T918] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 80.480894][ T4088] [ 80.483315][ T4088] ============================================ [ 80.489520][ T4088] WARNING: possible recursive locking detected [ 80.495655][ T4088] 5.19.0-rc8-syzkaller #0 Not tainted [ 80.500998][ T4088] -------------------------------------------- [ 80.507141][ T4088] syz-executor.0/4088 is trying to acquire lock: [ 80.513440][ T4088] ffff88807af41130 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: rfcomm_sk_state_change+0x99/0x320 [ 80.524971][ T4088] [ 80.524971][ T4088] but task is already holding lock: [ 80.532484][ T4088] ffff88807af41130 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: rfcomm_sock_shutdown+0x41/0x1b0 [ 80.543918][ T4088] [ 80.543918][ T4088] other info that might help us debug this: [ 80.552134][ T4088] Possible unsafe locking scenario: [ 80.552134][ T4088] [ 80.559647][ T4088] CPU0 [ 80.562915][ T4088] ---- [ 80.566183][ T4088] lock(sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM); [ 80.572306][ T4088] lock(sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM); [ 80.578424][ T4088] [ 80.578424][ T4088] *** DEADLOCK *** [ 80.578424][ T4088] [ 80.586537][ T4088] May be due to missing lock nesting notation [ 80.586537][ T4088] [ 80.594919][ T4088] 4 locks held by syz-executor.0/4088: [ 80.600362][ T4088] #0: ffff8880746cf410 (&sb->s_type->i_mutex_key#9){+.+.}-{3:3}, at: __sock_release+0x76/0x270 [ 80.610848][ T4088] #1: ffff88807af41130 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: rfcomm_sock_shutdown+0x41/0x1b0 [ 80.622636][ T4088] #2: ffffffff8c694be8 (rfcomm_mutex){+.+.}-{3:3}, at: rfcomm_dlc_close+0x25/0x200 [ 80.631988][ T4088] #3: ffff888076951928 (&d->lock){+.+.}-{3:3}, at: __rfcomm_dlc_close+0xff/0x770 [ 80.641251][ T4088] [ 80.641251][ T4088] stack backtrace: [ 80.647197][ T4088] CPU: 1 PID: 4088 Comm: syz-executor.0 Not tainted 5.19.0-rc8-syzkaller #0 [ 80.655845][ T4088] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 80.665893][ T4088] Call Trace: [ 80.669157][ T4088] [ 80.672065][ T4088] dump_stack_lvl+0x57/0x7d [ 80.676561][ T4088] __lock_acquire.cold+0x1e0/0x3a9 [ 80.681652][ T4088] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 80.687610][ T4088] lock_acquire+0x1ab/0x570 [ 80.692216][ T4088] ? rfcomm_sk_state_change+0x99/0x320 [ 80.697733][ T4088] ? lock_release+0x780/0x780 [ 80.702382][ T4088] ? mutex_lock_io_nested+0x1190/0x1190 [ 80.707993][ T4088] ? lockdep_hardirqs_on+0x79/0x100 [ 80.713173][ T4088] ? _raw_spin_unlock_irqrestore+0x3d/0x70 [ 80.718969][ T4088] ? del_timer+0xb3/0xf0 [ 80.723191][ T4088] lock_sock_nested+0x2b/0xd0 [ 80.728379][ T4088] ? rfcomm_sk_state_change+0x99/0x320 [ 80.733816][ T4088] rfcomm_sk_state_change+0x99/0x320 [ 80.739078][ T4088] __rfcomm_dlc_close+0x153/0x770 [ 80.744074][ T4088] rfcomm_dlc_close+0x1a4/0x200 [ 80.748897][ T4088] __rfcomm_sock_close+0x80/0x1f0 [ 80.753910][ T4088] ? rfcomm_sock_shutdown+0x41/0x1b0 [ 80.759271][ T4088] rfcomm_sock_shutdown+0xb9/0x1b0 [ 80.764381][ T4088] rfcomm_sock_release+0x4a/0x120 [ 80.769976][ T4088] __sock_release+0xbb/0x270 [ 80.774547][ T4088] sock_close+0xf/0x20 [ 80.778588][ T4088] __fput+0x1f5/0x8c0 [ 80.782550][ T4088] task_work_run+0xc0/0x160 [ 80.787107][ T4088] get_signal+0x19a/0x1e40 [ 80.791495][ T4088] ? find_held_lock+0x2d/0x110 [ 80.796414][ T4088] ? exit_signals+0x6f0/0x6f0 [ 80.801235][ T4088] ? rfcomm_sock_connect+0xf8/0x3b0 [ 80.806550][ T4088] ? lock_downgrade+0x6e0/0x6e0 [ 80.811382][ T4088] arch_do_signal_or_restart+0x88/0x1b10 [ 80.817001][ T4088] ? kick_process+0xf2/0x190 [ 80.821590][ T4088] ? task_work_add+0x13b/0x160 [ 80.826412][ T4088] ? get_sigframe_size+0x10/0x10 [ 80.831331][ T4088] ? __sys_connect+0x106/0x120 [ 80.836063][ T4088] ? __sys_connect_file+0x180/0x180 [ 80.841333][ T4088] exit_to_user_mode_prepare+0x15f/0x250 [ 80.846952][ T4088] syscall_exit_to_user_mode+0x19/0x50 [ 80.852482][ T4088] do_syscall_64+0x42/0x80 [ 80.856869][ T4088] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 80.862732][ T4088] RIP: 0033:0x7fb8dee89049 [ 80.867115][ T4088] 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 [ 80.886956][ T4088] RSP: 002b:00007fb8dff34168 EFLAGS: 00000246 ORIG_RAX: 000000000000002a [ 80.899942][ T4088] RAX: fffffffffffffffc RBX: 00007fb8def9bf60 RCX: 00007fb8dee89049 [ 80.908025][ T4088] RDX: 000000000000005a RSI: 0000000020000000 RDI: 0000000000000004 [ 80.916066][ T4088] RBP: 00007fb8deee308d R08: 0000000000000000 R09: 0000000000000000 [ 80.924104][ T4088] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 80.932247][ T4088] R13: 00007fff13814a5f R14: 00007fb8dff34300 R15: 0000000000022000 [ 80.940206][ T4088] [ 80.944288][ T26] Bluetooth: hci0: command 0x0409 tx timeout [ 83.008900][ T3617] Bluetooth: hci0: command 0x041b tx timeout [ 85.079102][ T26] Bluetooth: hci0: command 0x040f tx timeout [ 87.158886][ T3617] Bluetooth: hci0: command 0x0419 tx timeout [ 89.239087][ T3617] Bluetooth: hci0: command 0x0405 tx timeout