[ 59.003385][ T11] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.020036][ T11] device veth1_macvtap left promiscuous mode [ 59.026886][ T11] device veth0_macvtap left promiscuous mode [ 59.034072][ T11] device veth1_vlan left promiscuous mode [ 59.041672][ T11] device veth0_vlan left promiscuous mode [ 59.293704][ T11] team0 (unregistering): Port device team_slave_1 removed [ 59.327113][ T11] team0 (unregistering): Port device team_slave_0 removed [ 59.343453][ T11] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 59.360328][ T11] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 59.439624][ T11] bond0 (unregistering): Released all slaves [ 76.472080][ T1176] cfg80211: failed to load regulatory.db Warning: Permanently added '10.128.1.162' (ECDSA) to the list of known hosts. 2022/12/07 05:09:09 ignoring optional flag "sandboxArg"="0" 2022/12/07 05:09:09 parsed 1 programs 2022/12/07 05:09:09 executed programs: 0 [ 77.937589][ T4086] cgroup: Unknown subsys name 'net' [ 77.948573][ T4086] cgroup: Unknown subsys name 'rlimit' [ 79.036800][ T48] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 79.044833][ T48] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 79.052968][ T48] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 79.062220][ T48] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 79.069892][ T48] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 79.077737][ T48] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 79.086145][ T4091] Bluetooth: hci0: HCI_REQ-0x0c1a [ 79.158553][ T4091] chnl_net:caif_netlink_parms(): no params data found [ 79.201098][ T4091] bridge0: port 1(bridge_slave_0) entered blocking state [ 79.208297][ T4091] bridge0: port 1(bridge_slave_0) entered disabled state [ 79.216538][ T4091] device bridge_slave_0 entered promiscuous mode [ 79.225374][ T4091] bridge0: port 2(bridge_slave_1) entered blocking state [ 79.232623][ T4091] bridge0: port 2(bridge_slave_1) entered disabled state [ 79.240462][ T4091] device bridge_slave_1 entered promiscuous mode [ 79.261339][ T4091] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 79.272706][ T4091] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 79.298687][ T4091] team0: Port device team_slave_0 added [ 79.306245][ T4091] team0: Port device team_slave_1 added [ 79.324395][ T4091] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 79.331516][ T4091] 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. [ 79.358933][ T4091] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 79.372067][ T4091] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 79.379083][ T4091] 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. [ 79.406077][ T4091] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 79.434887][ T4091] device hsr_slave_0 entered promiscuous mode [ 79.442288][ T4091] device hsr_slave_1 entered promiscuous mode [ 79.506695][ T4091] bridge0: port 2(bridge_slave_1) entered blocking state [ 79.513954][ T4091] bridge0: port 2(bridge_slave_1) entered forwarding state [ 79.521574][ T4091] bridge0: port 1(bridge_slave_0) entered blocking state [ 79.528691][ T4091] bridge0: port 1(bridge_slave_0) entered forwarding state [ 79.568702][ T4091] 8021q: adding VLAN 0 to HW filter on device bond0 [ 79.584339][ T1176] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 79.593303][ T1176] bridge0: port 1(bridge_slave_0) entered disabled state [ 79.601212][ T1176] bridge0: port 2(bridge_slave_1) entered disabled state [ 79.609321][ T1176] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 79.623438][ T4091] 8021q: adding VLAN 0 to HW filter on device team0 [ 79.634517][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 79.644426][ T26] bridge0: port 1(bridge_slave_0) entered blocking state [ 79.651796][ T26] bridge0: port 1(bridge_slave_0) entered forwarding state [ 79.674315][ T3652] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 79.683419][ T3652] bridge0: port 2(bridge_slave_1) entered blocking state [ 79.690526][ T3652] bridge0: port 2(bridge_slave_1) entered forwarding state [ 79.699963][ T3652] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 79.709418][ T3652] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 79.726523][ T4091] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 79.739496][ T4091] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 79.752177][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 79.760230][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 79.773047][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 79.782571][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 79.805294][ T4091] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 79.815198][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 79.826094][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 80.180057][ T1176] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 80.190068][ T1176] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 80.210005][ T4091] device veth0_vlan entered promiscuous mode [ 80.217628][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 80.226654][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 80.236510][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 80.245791][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 80.259078][ T4091] device veth1_vlan entered promiscuous mode [ 80.277294][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 80.285411][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 80.294650][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 80.303761][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 80.314500][ T4091] device veth0_macvtap entered promiscuous mode [ 80.325053][ T4091] device veth1_macvtap entered promiscuous mode [ 80.340102][ T4091] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 80.350382][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 80.358898][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 80.366915][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 80.375892][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 80.387060][ T4091] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 80.397900][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 80.406947][ T151] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 80.463849][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 80.483462][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 80.493378][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 80.503790][ T11] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 80.512881][ T11] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 80.523828][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 81.111868][ T48] Bluetooth: hci0: command 0x0409 tx timeout [ 81.398209][ T4111] [ 81.400604][ T4111] ====================================================== [ 81.408494][ T4111] WARNING: possible circular locking dependency detected [ 81.415763][ T4111] 6.1.0-rc8-syzkaller-00014-g8ed710da2873 #0 Not tainted [ 81.423058][ T4111] ------------------------------------------------------ [ 81.431260][ T4111] syz-executor.0/4111 is trying to acquire lock: [ 81.438146][ T4111] ffff888022e22130 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: rfcomm_sk_state_change+0x52/0x2f0 [ 81.452220][ T4111] [ 81.452220][ T4111] but task is already holding lock: [ 81.459878][ T4111] ffff888078e91928 (&d->lock){+.+.}-{3:3}, at: __rfcomm_dlc_close+0x276/0x470 [ 81.469626][ T4111] [ 81.469626][ T4111] which lock already depends on the new lock. [ 81.469626][ T4111] [ 81.480012][ T4111] [ 81.480012][ T4111] the existing dependency chain (in reverse order) is: [ 81.489488][ T4111] [ 81.489488][ T4111] -> #2 (&d->lock){+.+.}-{3:3}: [ 81.496715][ T4111] lock_acquire+0x1a7/0x400 [ 81.501951][ T4111] __mutex_lock_common+0x1de/0x26c0 [ 81.507780][ T4111] mutex_lock_nested+0x17/0x20 [ 81.513243][ T4111] __rfcomm_dlc_close+0x276/0x470 [ 81.518896][ T4111] rfcomm_dlc_close+0x10d/0x1c0 [ 81.525081][ T4111] __rfcomm_sock_close+0x101/0x220 [ 81.532216][ T4111] rfcomm_sock_shutdown+0xad/0x230 [ 81.540457][ T4111] rfcomm_sock_release+0x55/0x120 [ 81.546459][ T4111] sock_close+0xd7/0x260 [ 81.552226][ T4111] __fput+0x3ba/0x880 [ 81.556846][ T4111] task_work_run+0x243/0x300 [ 81.562177][ T4111] get_signal+0x1642/0x1810 [ 81.568021][ T4111] arch_do_signal_or_restart+0x8d/0x750 [ 81.574402][ T4111] exit_to_user_mode_loop+0x74/0x160 [ 81.580945][ T4111] exit_to_user_mode_prepare+0xad/0x110 [ 81.587352][ T4111] syscall_exit_to_user_mode+0x2e/0x60 [ 81.593984][ T4111] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 81.601202][ T4111] [ 81.601202][ T4111] -> #1 (rfcomm_mutex){+.+.}-{3:3}: [ 81.608599][ T4111] lock_acquire+0x1a7/0x400 [ 81.614283][ T4111] __mutex_lock_common+0x1de/0x26c0 [ 81.621430][ T4111] mutex_lock_nested+0x17/0x20 [ 81.627189][ T4111] rfcomm_dlc_open+0x25/0x50 [ 81.632650][ T4111] rfcomm_sock_connect+0x285/0x470 [ 81.638601][ T4111] __sys_connect+0x29b/0x2d0 [ 81.643898][ T4111] __x64_sys_connect+0x76/0x80 [ 81.649425][ T4111] do_syscall_64+0x2b/0x70 [ 81.654482][ T4111] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 81.661494][ T4111] [ 81.661494][ T4111] -> #0 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}: [ 81.671238][ T4111] validate_chain+0x184a/0x6470 [ 81.676648][ T4111] __lock_acquire+0x1292/0x1f60 [ 81.682205][ T4111] lock_acquire+0x1a7/0x400 [ 81.687596][ T4111] lock_sock_nested+0x44/0xf0 [ 81.693032][ T4111] rfcomm_sk_state_change+0x52/0x2f0 [ 81.698948][ T4111] __rfcomm_dlc_close+0x2bb/0x470 [ 81.704679][ T4111] rfcomm_dlc_close+0x10d/0x1c0 [ 81.710045][ T4111] __rfcomm_sock_close+0x101/0x220 [ 81.716042][ T4111] rfcomm_sock_shutdown+0xad/0x230 [ 81.721943][ T4111] rfcomm_sock_release+0x55/0x120 [ 81.728397][ T4111] sock_close+0xd7/0x260 [ 81.733811][ T4111] __fput+0x3ba/0x880 [ 81.738534][ T4111] task_work_run+0x243/0x300 [ 81.744263][ T4111] get_signal+0x1642/0x1810 [ 81.749294][ T4111] arch_do_signal_or_restart+0x8d/0x750 [ 81.755351][ T4111] exit_to_user_mode_loop+0x74/0x160 [ 81.761264][ T4111] exit_to_user_mode_prepare+0xad/0x110 [ 81.767414][ T4111] syscall_exit_to_user_mode+0x2e/0x60 [ 81.773594][ T4111] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 81.780248][ T4111] [ 81.780248][ T4111] other info that might help us debug this: [ 81.780248][ T4111] [ 81.791389][ T4111] Chain exists of: [ 81.791389][ T4111] sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM --> rfcomm_mutex --> &d->lock [ 81.791389][ T4111] [ 81.805508][ T4111] Possible unsafe locking scenario: [ 81.805508][ T4111] [ 81.812998][ T4111] CPU0 CPU1 [ 81.818856][ T4111] ---- ---- [ 81.824394][ T4111] lock(&d->lock); [ 81.828200][ T4111] lock(rfcomm_mutex); [ 81.835160][ T4111] lock(&d->lock); [ 81.841614][ T4111] lock(sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM); [ 81.847852][ T4111] [ 81.847852][ T4111] *** DEADLOCK *** [ 81.847852][ T4111] [ 81.855979][ T4111] 3 locks held by syz-executor.0/4111: [ 81.861445][ T4111] #0: ffff888075388810 (&sb->s_type->i_mutex_key#9){+.+.}-{3:3}, at: sock_close+0x93/0x260 [ 81.871557][ T4111] #1: ffffffff8e5df588 (rfcomm_mutex){+.+.}-{3:3}, at: rfcomm_dlc_close+0x32/0x1c0 [ 81.881055][ T4111] #2: ffff888078e91928 (&d->lock){+.+.}-{3:3}, at: __rfcomm_dlc_close+0x276/0x470 [ 81.890580][ T4111] [ 81.890580][ T4111] stack backtrace: [ 81.896743][ T4111] CPU: 0 PID: 4111 Comm: syz-executor.0 Not tainted 6.1.0-rc8-syzkaller-00014-g8ed710da2873 #0 [ 81.907369][ T4111] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 81.917699][ T4111] Call Trace: [ 81.921079][ T4111] [ 81.924070][ T4111] dump_stack_lvl+0x1e3/0x2cb [ 81.928763][ T4111] ? nf_tcp_handle_invalid+0x62e/0x62e [ 81.934610][ T4111] ? print_circular_bug+0x13e/0x1c0 [ 81.939947][ T4111] check_noncircular+0x2f9/0x3b0 [ 81.945013][ T4111] ? add_chain_block+0x850/0x850 [ 81.950046][ T4111] ? lockdep_lock+0x11d/0x2a0 [ 81.955491][ T4111] ? _find_first_zero_bit+0xe8/0x110 [ 81.960898][ T4111] validate_chain+0x184a/0x6470 [ 81.965826][ T4111] ? reacquire_held_locks+0x680/0x680 [ 81.971437][ T4111] ? register_lock_class+0xfe/0x9b0 [ 81.976885][ T4111] ? is_dynamic_key+0x1f0/0x1f0 [ 81.983490][ T4111] ? mark_lock+0x9a/0x350 [ 81.987879][ T4111] ? __lock_acquire+0x1292/0x1f60 [ 81.993034][ T4111] ? mark_lock+0x9a/0x350 [ 81.997415][ T4111] __lock_acquire+0x1292/0x1f60 [ 82.002399][ T4111] lock_acquire+0x1a7/0x400 [ 82.007057][ T4111] ? rfcomm_sk_state_change+0x52/0x2f0 [ 82.013501][ T4111] ? read_lock_is_recursive+0x10/0x10 [ 82.019313][ T4111] ? __mutex_lock_common+0x45d/0x26c0 [ 82.024880][ T4111] ? del_timer+0x340/0x3d0 [ 82.029313][ T4111] ? __rfcomm_dlc_close+0x276/0x470 [ 82.035036][ T4111] ? mutex_lock_io_nested+0x60/0x60 [ 82.040329][ T4111] lock_sock_nested+0x44/0xf0 [ 82.045032][ T4111] ? rfcomm_sk_state_change+0x52/0x2f0 [ 82.050517][ T4111] rfcomm_sk_state_change+0x52/0x2f0 [ 82.056305][ T4111] __rfcomm_dlc_close+0x2bb/0x470 [ 82.061390][ T4111] rfcomm_dlc_close+0x10d/0x1c0 [ 82.066306][ T4111] __rfcomm_sock_close+0x101/0x220 [ 82.071531][ T4111] rfcomm_sock_shutdown+0xad/0x230 [ 82.076738][ T4111] rfcomm_sock_release+0x55/0x120 [ 82.081870][ T4111] sock_close+0xd7/0x260 [ 82.086130][ T4111] ? __fput+0x3b2/0x880 [ 82.090296][ T4111] ? sock_mmap+0x90/0x90 [ 82.094529][ T4111] __fput+0x3ba/0x880 [ 82.098626][ T4111] task_work_run+0x243/0x300 [ 82.103363][ T4111] ? task_work_cancel+0x290/0x290 [ 82.108565][ T4111] get_signal+0x1642/0x1810 [ 82.113175][ T4111] ? kick_process+0xd6/0x140 [ 82.117777][ T4111] ? task_work_add+0x2e6/0x340 [ 82.122851][ T4111] ? rcu_lock_release+0x20/0x20 [ 82.127815][ T4111] ? ptrace_notify+0x340/0x340 [ 82.132796][ T4111] arch_do_signal_or_restart+0x8d/0x750 [ 82.138521][ T4111] ? __sys_connect+0x157/0x2d0 [ 82.143660][ T4111] ? get_sigframe_size+0x10/0x10 [ 82.148797][ T4111] ? exit_to_user_mode_loop+0x42/0x160 [ 82.154712][ T4111] exit_to_user_mode_loop+0x74/0x160 [ 82.159998][ T4111] exit_to_user_mode_prepare+0xad/0x110 [ 82.165637][ T4111] syscall_exit_to_user_mode+0x2e/0x60 [ 82.171268][ T4111] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 82.177264][ T4111] RIP: 0033:0x7f2da4689049 [ 82.181684][ T4111] 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 [ 82.201563][ T4111] RSP: 002b:00007f2da5731168 EFLAGS: 00000246 ORIG_RAX: 000000000000002a [ 82.209985][ T4111] RAX: fffffffffffffffc RBX: 00007f2da479bf60 RCX: 00007f2da4689049 [ 82.217968][ T4111] RDX: 0000000000000080 RSI: 0000000020000000 RDI: 0000000000000004 [ 82.226217][ T4111] RBP: 00007f2da46e308d R08: 0000000000000000 R09: 0000000000000000 [ 82.234369][ T4111] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 82.242802][ T4111] R13: 00007ffc5e042ebf R14: 00007f2da5731300 R15: 0000000000022000 [ 82.250908][ T4111] 2022/12/07 05:09:14 executed programs: 2 [ 83.190706][ T48] Bluetooth: hci0: command 0x041b tx timeout [ 85.270722][ T3634] Bluetooth: hci0: command 0x040f tx timeout [ 87.350732][ T3634] Bluetooth: hci0: command 0x0419 tx timeout 2022/12/07 05:09:19 executed programs: 8 [ 89.430855][ T3634] Bluetooth: hci0: command 0x0405 tx timeout