[ 57.549788][ T56] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.575304][ T56] device veth1_macvtap left promiscuous mode [ 57.582800][ T56] device veth0_macvtap left promiscuous mode [ 57.589669][ T56] device veth1_vlan left promiscuous mode [ 57.595859][ T56] device veth0_vlan left promiscuous mode [ 57.743486][ T56] team0 (unregistering): Port device team_slave_1 removed [ 57.762867][ T56] team0 (unregistering): Port device team_slave_0 removed [ 57.774862][ T56] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 57.792979][ T56] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 57.841163][ T56] bond0 (unregistering): Released all slaves Warning: Permanently added '10.128.1.56' (ECDSA) to the list of known hosts. [ 76.239456][ T14] cfg80211: failed to load regulatory.db 2022/09/19 05:25:17 ignoring optional flag "sandboxArg"="0" 2022/09/19 05:25:18 parsed 1 programs 2022/09/19 05:25:18 executed programs: 0 [ 78.162300][ T48] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 78.172143][ T48] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 78.182192][ T48] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 78.191524][ T48] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 78.202059][ T48] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 78.210851][ T48] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 78.305479][ T4067] chnl_net:caif_netlink_parms(): no params data found [ 78.346879][ T4067] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.354971][ T4067] bridge0: port 1(bridge_slave_0) entered disabled state [ 78.364621][ T4067] device bridge_slave_0 entered promiscuous mode [ 78.374346][ T4067] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.382774][ T4067] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.391742][ T4067] device bridge_slave_1 entered promiscuous mode [ 78.411912][ T4067] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 78.425070][ T4067] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 78.448943][ T4067] team0: Port device team_slave_0 added [ 78.458707][ T4067] team0: Port device team_slave_1 added [ 78.478577][ T4067] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 78.488562][ T4067] 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. [ 78.527068][ T4067] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 78.543155][ T4067] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 78.553472][ T4067] 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. [ 78.586878][ T4067] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 78.616714][ T4067] device hsr_slave_0 entered promiscuous mode [ 78.624462][ T4067] device hsr_slave_1 entered promiscuous mode [ 78.687869][ T4067] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.695171][ T4067] bridge0: port 2(bridge_slave_1) entered forwarding state [ 78.703036][ T4067] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.710282][ T4067] bridge0: port 1(bridge_slave_0) entered forwarding state [ 78.751579][ T4067] 8021q: adding VLAN 0 to HW filter on device bond0 [ 78.764260][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 78.773609][ T14] bridge0: port 1(bridge_slave_0) entered disabled state [ 78.783842][ T14] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.791943][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 78.805610][ T4067] 8021q: adding VLAN 0 to HW filter on device team0 [ 78.816377][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 78.825515][ T14] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.833491][ T14] bridge0: port 1(bridge_slave_0) entered forwarding state [ 78.846879][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 78.855780][ T26] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.863577][ T26] bridge0: port 2(bridge_slave_1) entered forwarding state [ 78.880965][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 78.891087][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 78.910084][ T4067] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 78.921975][ T4067] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 78.934400][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 78.943450][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 78.953058][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 78.962034][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 78.978209][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 78.987429][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 78.999014][ T4067] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 79.206426][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 79.225906][ T4067] device veth0_vlan entered promiscuous mode [ 79.234125][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 79.245023][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 79.257136][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 79.271527][ T4067] device veth1_vlan entered promiscuous mode [ 79.291888][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 79.301089][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 79.309948][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 79.322555][ T4067] device veth0_macvtap entered promiscuous mode [ 79.333390][ T4067] device veth1_macvtap entered promiscuous mode [ 79.351169][ T4067] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 79.358766][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 79.370050][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 79.383451][ T4067] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 79.394217][ T3619] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 79.405336][ T3619] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 80.237321][ T14] Bluetooth: hci0: command 0x0409 tx timeout [ 80.314365][ T4086] [ 80.317354][ T4086] ============================================ [ 80.326864][ T4086] WARNING: possible recursive locking detected [ 80.337713][ T4086] 6.0.0-rc4-syzkaller-00985-g44a8535fb87c #0 Not tainted [ 80.345552][ T4086] -------------------------------------------- [ 80.352296][ T4086] syz-executor.0/4086 is trying to acquire lock: [ 80.359315][ T4086] ffff88807b8a8130 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: rfcomm_sk_state_change+0x69/0x3a0 [ 80.373427][ T4086] [ 80.373427][ T4086] but task is already holding lock: [ 80.381193][ T4086] ffff88807b8a8130 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: rfcomm_sock_shutdown+0x52/0x210 [ 80.393813][ T4086] [ 80.393813][ T4086] other info that might help us debug this: [ 80.402831][ T4086] Possible unsafe locking scenario: [ 80.402831][ T4086] [ 80.410726][ T4086] CPU0 [ 80.414101][ T4086] ---- [ 80.417593][ T4086] lock(sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM); [ 80.425066][ T4086] lock(sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM); [ 80.431427][ T4086] [ 80.431427][ T4086] *** DEADLOCK *** [ 80.431427][ T4086] [ 80.439770][ T4086] May be due to missing lock nesting notation [ 80.439770][ T4086] [ 80.448741][ T4086] 4 locks held by syz-executor.0/4086: [ 80.454325][ T4086] #0: ffff8880753b4410 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: __sock_release+0x86/0x280 [ 80.465120][ T4086] #1: ffff88807b8a8130 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: rfcomm_sock_shutdown+0x52/0x210 [ 80.477951][ T4086] #2: ffffffff8da00ac8 (rfcomm_mutex){+.+.}-{3:3}, at: rfcomm_dlc_close+0x2f/0x240 [ 80.488034][ T4086] #3: ffff888079c5b928 (&d->lock){+.+.}-{3:3}, at: __rfcomm_dlc_close+0x15d/0x890 [ 80.498690][ T4086] [ 80.498690][ T4086] stack backtrace: [ 80.505047][ T4086] CPU: 0 PID: 4086 Comm: syz-executor.0 Not tainted 6.0.0-rc4-syzkaller-00985-g44a8535fb87c #0 [ 80.517733][ T4086] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 [ 80.528618][ T4086] Call Trace: [ 80.532615][ T4086] [ 80.535840][ T4086] dump_stack_lvl+0xcd/0x134 [ 80.541513][ T4086] __lock_acquire.cold+0x116/0x3a7 [ 80.546676][ T4086] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 80.552949][ T4086] lock_acquire+0x1ab/0x570 [ 80.557551][ T4086] ? rfcomm_sk_state_change+0x69/0x3a0 [ 80.563734][ T4086] ? lock_release+0x780/0x780 [ 80.570270][ T4086] ? __rfcomm_dlc_close+0x15d/0x890 [ 80.576380][ T4086] ? mutex_lock_io_nested+0x1190/0x1190 [ 80.582783][ T4086] ? lockdep_hardirqs_on+0x79/0x100 [ 80.589369][ T4086] ? del_timer+0xc5/0x110 [ 80.594648][ T4086] lock_sock_nested+0x36/0xf0 [ 80.599980][ T4086] ? rfcomm_sk_state_change+0x69/0x3a0 [ 80.606916][ T4086] rfcomm_sk_state_change+0x69/0x3a0 [ 80.612498][ T4086] __rfcomm_dlc_close+0x1b1/0x890 [ 80.618344][ T4086] rfcomm_dlc_close+0x1e5/0x240 [ 80.623592][ T4086] ? __sanitizer_cov_trace_switch+0x50/0x90 [ 80.629695][ T4086] __rfcomm_sock_close+0x13c/0x250 [ 80.634855][ T4086] ? lockdep_hardirqs_on+0x79/0x100 [ 80.640091][ T4086] rfcomm_sock_shutdown+0xcc/0x210 [ 80.645245][ T4086] rfcomm_sock_release+0x64/0x140 [ 80.650398][ T4086] __sock_release+0xcd/0x280 [ 80.655316][ T4086] sock_close+0x18/0x20 [ 80.660271][ T4086] __fput+0x277/0x9d0 [ 80.664641][ T4086] ? __sock_release+0x280/0x280 [ 80.670747][ T4086] task_work_run+0xdd/0x1a0 [ 80.676051][ T4086] get_signal+0x1c3/0x2610 [ 80.680900][ T4086] ? rfcomm_sock_connect+0x155/0x450 [ 80.687883][ T4086] ? lock_downgrade+0x6e0/0x6e0 [ 80.693500][ T4086] ? exit_signals+0x8b0/0x8b0 [ 80.698467][ T4086] ? __local_bh_enable_ip+0xa0/0x120 [ 80.703911][ T4086] ? __local_bh_enable_ip+0xa0/0x120 [ 80.709421][ T4086] arch_do_signal_or_restart+0x82/0x2300 [ 80.715188][ T4086] ? task_work_add+0xa4/0x1f0 [ 80.720629][ T4086] ? fput+0xf2/0x190 [ 80.724778][ T4086] ? get_sigframe_size+0x10/0x10 [ 80.729828][ T4086] ? __sys_connect_file+0x190/0x190 [ 80.735604][ T4086] ? exit_to_user_mode_prepare+0x137/0x250 [ 80.741883][ T4086] exit_to_user_mode_prepare+0x15f/0x250 [ 80.747905][ T4086] syscall_exit_to_user_mode+0x19/0x50 [ 80.753830][ T4086] do_syscall_64+0x42/0xb0 [ 80.759940][ T4086] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 80.767297][ T4086] RIP: 0033:0x4665f9 [ 80.771534][ T4086] 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 bc ff ff ff f7 d8 64 89 01 48 [ 80.795704][ T4086] RSP: 002b:00007eff9c78e188 EFLAGS: 00000246 ORIG_RAX: 000000000000002a [ 80.804946][ T4086] RAX: fffffffffffffffc RBX: 000000000056bf80 RCX: 00000000004665f9 [ 80.813464][ T4086] RDX: 0000000000000080 RSI: 00000000200001c0 RDI: 0000000000000004 [ 80.822873][ T4086] RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 [ 80.833120][ T4086] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 [ 80.843213][ T4086] R13: 00007ffdb7511fff R14: 00007eff9c78e300 R15: 0000000000022000 [ 80.851884][ T4086] [ 82.316156][ T2935] Bluetooth: hci0: command 0x041b tx timeout [ 84.406501][ T2935] Bluetooth: hci0: command 0x040f tx timeout [ 86.476240][ T2935] Bluetooth: hci0: command 0x0419 tx timeout [ 88.556163][ T2935] Bluetooth: hci0: command 0x0405 tx timeout