[ 49.465553][ T51] bridge0: port 1(bridge_slave_0) entered disabled state [ 49.486256][ T51] device veth1_macvtap left promiscuous mode [ 49.492902][ T51] device veth0_macvtap left promiscuous mode [ 49.499221][ T51] device veth1_vlan left promiscuous mode [ 49.505072][ T51] device veth0_vlan left promiscuous mode [ 49.617980][ T51] team0 (unregistering): Port device team_slave_1 removed [ 49.629462][ T51] team0 (unregistering): Port device team_slave_0 removed [ 49.641391][ T51] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 49.654434][ T51] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 49.697593][ T51] bond0 (unregistering): Released all slaves Warning: Permanently added '10.128.1.100' (ECDSA) to the list of known hosts. 2022/09/18 08:41:50 ignoring optional flag "sandboxArg"="0" 2022/09/18 08:41:50 parsed 1 programs 2022/09/18 08:41:50 executed programs: 0 [ 66.655389][ T47] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 66.663093][ T47] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 66.670828][ T47] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 66.678526][ T47] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 66.686550][ T47] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 66.693741][ T47] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 66.754458][ T4070] chnl_net:caif_netlink_parms(): no params data found [ 66.787137][ T4070] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.794308][ T4070] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.802189][ T4070] device bridge_slave_0 entered promiscuous mode [ 66.810488][ T4070] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.817578][ T4070] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.825334][ T4070] device bridge_slave_1 entered promiscuous mode [ 66.843790][ T4070] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.854358][ T4070] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.873931][ T4070] team0: Port device team_slave_0 added [ 66.881625][ T4070] team0: Port device team_slave_1 added [ 66.897132][ T4070] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 66.904122][ T4070] 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. [ 66.930188][ T4070] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 66.941954][ T4070] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 66.948890][ T4070] 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. [ 66.975252][ T4070] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 66.998386][ T4070] device hsr_slave_0 entered promiscuous mode [ 67.005491][ T4070] device hsr_slave_1 entered promiscuous mode [ 67.054674][ T4070] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.061772][ T4070] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.069120][ T4070] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.076179][ T4070] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.108744][ T4070] 8021q: adding VLAN 0 to HW filter on device bond0 [ 67.120161][ T3621] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 67.128245][ T3621] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.137078][ T3621] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.144781][ T3621] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 67.155573][ T4070] 8021q: adding VLAN 0 to HW filter on device team0 [ 67.165860][ T3621] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 67.174876][ T3621] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.181981][ T3621] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.200328][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 67.208735][ T141] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.215914][ T141] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.224930][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 67.233817][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 67.247129][ T4070] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 67.258400][ T4070] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 67.271766][ T2936] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 67.279781][ T2936] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 67.288058][ T2936] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 67.303917][ T4070] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 67.312455][ T2936] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 67.320227][ T2936] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 67.327631][ T2936] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 67.491202][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 67.500360][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 67.508454][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 67.516980][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 67.525302][ T4070] device veth0_vlan entered promiscuous mode [ 67.534897][ T4070] device veth1_vlan entered promiscuous mode [ 67.549927][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 67.557908][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 67.566350][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 67.576853][ T4070] device veth0_macvtap entered promiscuous mode [ 67.586069][ T4070] device veth1_macvtap entered promiscuous mode [ 67.600500][ T4070] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 67.607751][ T2936] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 67.617304][ T2936] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 67.627353][ T4070] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 67.635135][ T3621] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 68.515815][ T4090] [ 68.518166][ T4090] ============================================ [ 68.524292][ T4090] WARNING: possible recursive locking detected [ 68.530424][ T4090] 6.0.0-rc4-syzkaller-00985-g44a8535fb87c #0 Not tainted [ 68.537429][ T4090] -------------------------------------------- [ 68.543553][ T4090] syz-executor.0/4090 is trying to acquire lock: [ 68.549853][ T4090] ffff88807a8a1130 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: rfcomm_sk_state_change+0x69/0x3a0 [ 68.561308][ T4090] [ 68.561308][ T4090] but task is already holding lock: [ 68.568646][ T4090] ffff88807a8a1130 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: rfcomm_sock_shutdown+0x52/0x210 [ 68.579934][ T4090] [ 68.579934][ T4090] other info that might help us debug this: [ 68.587970][ T4090] Possible unsafe locking scenario: [ 68.587970][ T4090] [ 68.595404][ T4090] CPU0 [ 68.598665][ T4090] ---- [ 68.601933][ T4090] lock(sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM); [ 68.608065][ T4090] lock(sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM); [ 68.614194][ T4090] [ 68.614194][ T4090] *** DEADLOCK *** [ 68.614194][ T4090] [ 68.622407][ T4090] May be due to missing lock nesting notation [ 68.622407][ T4090] [ 68.630715][ T4090] 4 locks held by syz-executor.0/4090: [ 68.636154][ T4090] #0: ffff888073a16210 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: __sock_release+0x86/0x280 [ 68.646763][ T4090] #1: ffff88807a8a1130 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: rfcomm_sock_shutdown+0x52/0x210 [ 68.658489][ T4090] #2: ffffffff8da00ac8 (rfcomm_mutex){+.+.}-{3:3}, at: rfcomm_dlc_close+0x2f/0x240 [ 68.667861][ T4090] #3: ffff88807e47e928 (&d->lock){+.+.}-{3:3}, at: __rfcomm_dlc_close+0x15d/0x890 [ 68.677145][ T4090] [ 68.677145][ T4090] stack backtrace: [ 68.683008][ T4090] CPU: 0 PID: 4090 Comm: syz-executor.0 Not tainted 6.0.0-rc4-syzkaller-00985-g44a8535fb87c #0 [ 68.693588][ T4090] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 [ 68.703627][ T4090] Call Trace: [ 68.706899][ T4090] [ 68.709817][ T4090] dump_stack_lvl+0xcd/0x134 [ 68.714390][ T4090] __lock_acquire.cold+0x116/0x3a7 [ 68.719502][ T4090] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 68.725502][ T4090] lock_acquire+0x1ab/0x570 [ 68.729988][ T4090] ? rfcomm_sk_state_change+0x69/0x3a0 [ 68.735436][ T4090] ? lock_release+0x780/0x780 [ 68.740091][ T4090] ? __rfcomm_dlc_close+0x15d/0x890 [ 68.745269][ T4090] ? mutex_lock_io_nested+0x1190/0x1190 [ 68.750806][ T4090] ? lockdep_hardirqs_on+0x79/0x100 [ 68.755993][ T4090] ? del_timer+0xc5/0x110 [ 68.760306][ T4090] lock_sock_nested+0x36/0xf0 [ 68.764964][ T4090] ? rfcomm_sk_state_change+0x69/0x3a0 [ 68.770407][ T4090] rfcomm_sk_state_change+0x69/0x3a0 [ 68.775671][ T4090] __rfcomm_dlc_close+0x1b1/0x890 [ 68.780675][ T4090] rfcomm_dlc_close+0x1e5/0x240 [ 68.785504][ T4090] ? __sanitizer_cov_trace_switch+0x50/0x90 [ 68.791379][ T4090] __rfcomm_sock_close+0x13c/0x250 [ 68.796556][ T4090] ? lockdep_hardirqs_on+0x79/0x100 [ 68.801734][ T4090] rfcomm_sock_shutdown+0xcc/0x210 [ 68.806834][ T4090] rfcomm_sock_release+0x64/0x140 [ 68.811852][ T4090] __sock_release+0xcd/0x280 [ 68.816424][ T4090] sock_close+0x18/0x20 [ 68.820559][ T4090] __fput+0x277/0x9d0 [ 68.824523][ T4090] ? __sock_release+0x280/0x280 [ 68.829354][ T4090] task_work_run+0xdd/0x1a0 [ 68.833843][ T4090] get_signal+0x1c3/0x2610 [ 68.838272][ T4090] ? rfcomm_sock_connect+0x155/0x450 [ 68.843540][ T4090] ? lock_downgrade+0x6e0/0x6e0 [ 68.848367][ T4090] ? exit_signals+0x8b0/0x8b0 [ 68.853029][ T4090] ? __local_bh_enable_ip+0xa0/0x120 [ 68.858291][ T4090] ? __local_bh_enable_ip+0xa0/0x120 [ 68.863557][ T4090] arch_do_signal_or_restart+0x82/0x2300 [ 68.869176][ T4090] ? task_work_add+0xa4/0x1f0 [ 68.873830][ T4090] ? fput+0xf2/0x190 [ 68.877715][ T4090] ? get_sigframe_size+0x10/0x10 [ 68.882633][ T4090] ? __sys_connect_file+0x190/0x190 [ 68.887813][ T4090] ? exit_to_user_mode_prepare+0x137/0x250 [ 68.893605][ T4090] exit_to_user_mode_prepare+0x15f/0x250 [ 68.899218][ T4090] syscall_exit_to_user_mode+0x19/0x50 [ 68.904668][ T4090] do_syscall_64+0x42/0xb0 [ 68.909074][ T4090] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 68.914964][ T4090] RIP: 0033:0x4665f9 [ 68.918839][ T4090] 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 [ 68.938427][ T4090] RSP: 002b:00007fa85c535188 EFLAGS: 00000246 ORIG_RAX: 000000000000002a [ 68.947090][ T4090] RAX: fffffffffffffffc RBX: 000000000056bf80 RCX: 00000000004665f9 [ 68.955040][ T4090] RDX: 0000000000000080 RSI: 0000000020000000 RDI: 0000000000000004 [ 68.962990][ T4090] RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 [ 68.970938][ T4090] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 [ 68.978894][ T4090] R13: 00007ffd3f09ce3f R14: 00007fa85c535300 R15: 0000000000022000 [ 68.986849][ T4090] [ 68.990782][ T2936] Bluetooth: hci0: command 0x0409 tx timeout [ 70.889947][ T1239] ieee802154 phy0 wpan0: encryption failed: -22 [ 70.896321][ T1239] ieee802154 phy1 wpan1: encryption failed: -22 [ 71.049144][ T141] Bluetooth: hci0: command 0x041b tx timeout [ 73.129183][ T141] Bluetooth: hci0: command 0x040f tx timeout [ 75.219104][ T141] Bluetooth: hci0: command 0x0419 tx timeout [ 76.009276][ T14] cfg80211: failed to load regulatory.db [ 77.289152][ T141] Bluetooth: hci0: command 0x0405 tx timeout