[ 50.886098][ T1191] bridge0: port 1(bridge_slave_0) entered disabled state [ 50.899553][ T1191] device veth1_macvtap left promiscuous mode [ 50.906125][ T1191] device veth0_macvtap left promiscuous mode [ 50.912298][ T1191] device veth1_vlan left promiscuous mode [ 50.918364][ T1191] device veth0_vlan left promiscuous mode [ 51.028360][ T1191] team0 (unregistering): Port device team_slave_1 removed [ 51.039984][ T1191] team0 (unregistering): Port device team_slave_0 removed [ 51.055590][ T1191] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 51.068771][ T1191] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 51.111260][ T1191] bond0 (unregistering): Released all slaves Warning: Permanently added '10.128.1.121' (ECDSA) to the list of known hosts. 2022/05/10 12:02:56 parsed 1 programs 2022/05/10 12:02:56 executed programs: 0 [ 63.434088][ T3966] cgroup: Unknown subsys name 'net' [ 63.445062][ T3966] cgroup: Unknown subsys name 'rlimit' [ 65.924824][ T1231] ieee802154 phy0 wpan0: encryption failed: -22 [ 65.931286][ T1231] ieee802154 phy1 wpan1: encryption failed: -22 [ 66.642652][ T3601] Bluetooth: hci0: Opcode 0x c03 failed: -110 [ 70.802696][ T3601] Bluetooth: hci0: Opcode 0x c03 failed: -110 [ 71.048347][ T141] cfg80211: failed to load regulatory.db [ 74.962624][ T3601] Bluetooth: hci0: Opcode 0x c03 failed: -110 [ 79.122565][ T3601] Bluetooth: hci0: Opcode 0x c03 failed: -110 [ 81.211519][ T46] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 81.219543][ T46] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 81.227115][ T46] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 81.235087][ T46] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 81.242641][ T46] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 81.249747][ T46] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 81.309510][ T4067] chnl_net:caif_netlink_parms(): no params data found [ 81.350280][ T4067] bridge0: port 1(bridge_slave_0) entered blocking state [ 81.358042][ T4067] bridge0: port 1(bridge_slave_0) entered disabled state [ 81.365924][ T4067] device bridge_slave_0 entered promiscuous mode [ 81.374691][ T4067] bridge0: port 2(bridge_slave_1) entered blocking state [ 81.381803][ T4067] bridge0: port 2(bridge_slave_1) entered disabled state [ 81.391034][ T4067] device bridge_slave_1 entered promiscuous mode [ 81.408243][ T4067] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 81.419194][ T4067] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 81.439459][ T4067] team0: Port device team_slave_0 added [ 81.446406][ T4067] team0: Port device team_slave_1 added [ 81.461953][ T4067] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 81.468920][ 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. [ 81.494900][ T4067] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 81.506738][ T4067] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 81.513812][ 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. [ 81.539867][ T4067] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 81.562247][ T4067] device hsr_slave_0 entered promiscuous mode [ 81.568880][ T4067] device hsr_slave_1 entered promiscuous mode [ 81.619408][ T4067] bridge0: port 2(bridge_slave_1) entered blocking state [ 81.626515][ T4067] bridge0: port 2(bridge_slave_1) entered forwarding state [ 81.633840][ T4067] bridge0: port 1(bridge_slave_0) entered blocking state [ 81.641099][ T4067] bridge0: port 1(bridge_slave_0) entered forwarding state [ 81.671104][ T4067] 8021q: adding VLAN 0 to HW filter on device bond0 [ 81.682306][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 81.690444][ T141] bridge0: port 1(bridge_slave_0) entered disabled state [ 81.700148][ T141] bridge0: port 2(bridge_slave_1) entered disabled state [ 81.707842][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 81.720283][ T4067] 8021q: adding VLAN 0 to HW filter on device team0 [ 81.729533][ T3611] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 81.737960][ T3611] bridge0: port 1(bridge_slave_0) entered blocking state [ 81.745251][ T3611] bridge0: port 1(bridge_slave_0) entered forwarding state [ 81.756521][ T143] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 81.765067][ T143] bridge0: port 2(bridge_slave_1) entered blocking state [ 81.772094][ T143] bridge0: port 2(bridge_slave_1) entered forwarding state [ 81.790837][ T4067] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 81.801476][ T4067] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 81.816223][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 81.824987][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 81.833421][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 81.841708][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 81.849908][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 81.857471][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 81.874257][ T4067] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 81.881350][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 81.888879][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 82.041813][ T4067] device veth0_vlan entered promiscuous mode [ 82.049837][ T2927] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 82.059034][ T2927] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 82.067625][ T2927] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 82.076204][ T2927] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 82.087226][ T4067] device veth1_vlan entered promiscuous mode [ 82.101604][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 82.110371][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 82.118621][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 82.129763][ T4067] device veth0_macvtap entered promiscuous mode [ 82.138275][ T4067] device veth1_macvtap entered promiscuous mode [ 82.151316][ T4067] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 82.158582][ T2927] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 82.168010][ T2927] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 82.177946][ T4067] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 82.185840][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 82.234507][ T1191] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 82.242371][ T1191] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 82.253999][ T143] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 82.269965][ T1191] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 82.278176][ T1191] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 82.286885][ T2927] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 83.147262][ T4089] [ 83.149593][ T4089] ============================================ [ 83.155709][ T4089] WARNING: possible recursive locking detected [ 83.161831][ T4089] 5.18.0-rc6-syzkaller #0 Not tainted [ 83.167169][ T4089] -------------------------------------------- [ 83.173281][ T4089] syz-executor.0/4089 is trying to acquire lock: [ 83.179569][ T4089] ffff88807af2e130 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: rfcomm_sk_state_change+0x99/0x320 [ 83.190992][ T4089] [ 83.190992][ T4089] but task is already holding lock: [ 83.198338][ T4089] ffff88807af2e130 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: rfcomm_sock_shutdown+0x41/0x1b0 [ 83.209588][ T4089] [ 83.209588][ T4089] other info that might help us debug this: [ 83.217614][ T4089] Possible unsafe locking scenario: [ 83.217614][ T4089] [ 83.225120][ T4089] CPU0 [ 83.228380][ T4089] ---- [ 83.231637][ T4089] lock(sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM); [ 83.237768][ T4089] lock(sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM); [ 83.243893][ T4089] [ 83.243893][ T4089] *** DEADLOCK *** [ 83.243893][ T4089] [ 83.252005][ T4089] May be due to missing lock nesting notation [ 83.252005][ T4089] [ 83.260297][ T4089] 4 locks held by syz-executor.0/4089: [ 83.265723][ T4089] #0: ffff888071d0b210 (&sb->s_type->i_mutex_key#9){+.+.}-{3:3}, at: __sock_release+0x76/0x270 [ 83.276113][ T4089] #1: ffff88807af2e130 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: rfcomm_sock_shutdown+0x41/0x1b0 [ 83.287798][ T4089] #2: ffffffff8c674048 (rfcomm_mutex){+.+.}-{3:3}, at: rfcomm_dlc_close+0x25/0x200 [ 83.297140][ T4089] #3: ffff88807592bd28 (&d->lock){+.+.}-{3:3}, at: __rfcomm_dlc_close+0xff/0x770 [ 83.306314][ T4089] [ 83.306314][ T4089] stack backtrace: [ 83.312390][ T4089] CPU: 0 PID: 4089 Comm: syz-executor.0 Not tainted 5.18.0-rc6-syzkaller #0 [ 83.321047][ T4089] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 83.331074][ T4089] Call Trace: [ 83.334329][ T4089] [ 83.337245][ T4089] dump_stack_lvl+0x57/0x7d [ 83.341718][ T4089] __lock_acquire.cold+0x149/0x399 [ 83.346795][ T4089] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 83.352745][ T4089] lock_acquire+0x1ab/0x510 [ 83.357225][ T4089] ? rfcomm_sk_state_change+0x99/0x320 [ 83.362650][ T4089] ? lock_release+0x720/0x720 [ 83.367295][ T4089] ? mutex_lock_io_nested+0x1150/0x1150 [ 83.372806][ T4089] ? lockdep_hardirqs_on+0x79/0x100 [ 83.377996][ T4089] ? _raw_spin_unlock_irqrestore+0x3d/0x70 [ 83.383853][ T4089] ? del_timer+0xb3/0xf0 [ 83.388060][ T4089] lock_sock_nested+0x2b/0xd0 [ 83.392702][ T4089] ? rfcomm_sk_state_change+0x99/0x320 [ 83.398124][ T4089] rfcomm_sk_state_change+0x99/0x320 [ 83.403382][ T4089] __rfcomm_dlc_close+0x153/0x770 [ 83.408395][ T4089] rfcomm_dlc_close+0x1a4/0x200 [ 83.413225][ T4089] __rfcomm_sock_close+0x80/0x1f0 [ 83.418229][ T4089] ? rfcomm_sock_shutdown+0x41/0x1b0 [ 83.423483][ T4089] rfcomm_sock_shutdown+0xb9/0x1b0 [ 83.428556][ T4089] rfcomm_sock_release+0x4a/0x120 [ 83.433631][ T4089] __sock_release+0xbb/0x270 [ 83.438275][ T4089] sock_close+0xf/0x20 [ 83.442307][ T4089] __fput+0x1f5/0x8c0 [ 83.446256][ T4089] task_work_run+0xc0/0x160 [ 83.450728][ T4089] get_signal+0x19b/0x1db0 [ 83.455120][ T4089] ? find_held_lock+0x2d/0x110 [ 83.459851][ T4089] ? signal_setup_done+0x4a0/0x4a0 [ 83.464928][ T4089] ? rfcomm_sock_connect+0xf8/0x3b0 [ 83.470179][ T4089] ? lock_downgrade+0x6e0/0x6e0 [ 83.474999][ T4089] arch_do_signal_or_restart+0x88/0x1a10 [ 83.480601][ T4089] ? kick_process+0xf2/0x190 [ 83.485163][ T4089] ? task_work_add+0x10e/0x130 [ 83.489892][ T4089] ? get_sigframe_size+0x10/0x10 [ 83.494797][ T4089] ? __sys_connect+0x106/0x120 [ 83.499613][ T4089] ? __sys_connect_file+0x180/0x180 [ 83.504780][ T4089] exit_to_user_mode_prepare+0x15f/0x250 [ 83.510382][ T4089] syscall_exit_to_user_mode+0x19/0x60 [ 83.515810][ T4089] do_syscall_64+0x42/0x80 [ 83.520211][ T4089] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 83.526068][ T4089] RIP: 0033:0x7fc6ff289049 [ 83.530451][ T4089] 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 [ 83.550021][ T4089] RSP: 002b:00007fc7003c7168 EFLAGS: 00000246 ORIG_RAX: 000000000000002a [ 83.558401][ T4089] RAX: fffffffffffffffc RBX: 00007fc6ff39bf60 RCX: 00007fc6ff289049 [ 83.566428][ T4089] RDX: 0000000000000080 RSI: 0000000020000000 RDI: 0000000000000004 [ 83.574366][ T4089] RBP: 00007fc6ff2e308d R08: 0000000000000000 R09: 0000000000000000 [ 83.582309][ T4089] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 83.590245][ T4089] R13: 00007ffc080a1b9f R14: 00007fc7003c7300 R15: 0000000000022000 [ 83.598185][ T4089] [ 83.602516][ T2927] Bluetooth: hci0: command 0x0409 tx timeout [ 85.682687][ T2927] Bluetooth: hci0: command 0x041b tx timeout [ 87.762749][ T14] Bluetooth: hci0: command 0x040f tx timeout [ 89.842629][ T14] Bluetooth: hci0: command 0x0419 tx timeout [ 91.923119][ T14] Bluetooth: hci0: command 0x0405 tx timeout