Warning: Permanently added '10.128.0.153' (ED25519) to the list of known hosts. 2025/08/24 08:06:25 parsed 1 programs [ 72.146900][ T4188] cgroup: Unknown subsys name 'net' [ 72.278110][ T4188] cgroup: Unknown subsys name 'rlimit' [ 73.859096][ T4188] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 75.942157][ T4216] syz-executor (4216) used greatest stack depth: 20992 bytes left [ 77.627062][ T144] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 77.638374][ T144] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 77.654109][ T1219] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 77.674114][ T1219] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 77.682415][ T1219] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 77.691604][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 78.099318][ T4273] chnl_net:caif_netlink_parms(): no params data found [ 78.172187][ T4273] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.179627][ T4273] bridge0: port 1(bridge_slave_0) entered disabled state [ 78.188874][ T4273] device bridge_slave_0 entered promiscuous mode [ 78.199039][ T4273] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.206507][ T4273] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.214594][ T4273] device bridge_slave_1 entered promiscuous mode [ 78.255785][ T4273] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 78.267860][ T4273] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 78.296397][ T4273] team0: Port device team_slave_0 added [ 78.319050][ T4273] team0: Port device team_slave_1 added [ 78.338814][ T4273] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 78.346678][ T4273] 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. [ 78.374078][ T4273] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 78.406596][ T4273] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 78.413759][ T4273] 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. [ 78.440668][ T4273] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 78.474688][ T4273] device hsr_slave_0 entered promiscuous mode [ 78.482968][ T4273] device hsr_slave_1 entered promiscuous mode [ 78.629946][ T4273] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 78.643188][ T4273] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 78.653359][ T4273] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 78.663453][ T4273] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 78.766243][ T4273] 8021q: adding VLAN 0 to HW filter on device bond0 [ 78.781786][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 78.790490][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 78.805370][ T4273] 8021q: adding VLAN 0 to HW filter on device team0 [ 78.819005][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 78.833110][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 78.843990][ T154] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.851565][ T154] bridge0: port 1(bridge_slave_0) entered forwarding state [ 78.866008][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 78.883887][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 78.894765][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 78.905572][ T154] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.912806][ T154] bridge0: port 2(bridge_slave_1) entered forwarding state [ 78.929678][ T1219] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 78.951775][ T1219] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 78.961434][ T1219] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 78.972741][ T1219] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 78.984095][ T1219] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 78.994281][ T1219] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 79.004793][ T1219] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 79.013685][ T1219] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 79.024254][ T1219] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 79.047037][ T4273] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 79.060012][ T4273] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 79.069042][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 79.082441][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 79.217706][ T1219] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 79.226233][ T1219] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 79.242972][ T4273] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 79.266509][ T1219] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 79.278118][ T1219] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 79.301804][ T1219] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 79.311471][ T1219] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 79.320836][ T1219] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 79.329226][ T1219] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 79.338123][ T4273] device veth0_vlan entered promiscuous mode [ 79.353854][ T4273] device veth1_vlan entered promiscuous mode [ 79.377131][ T1219] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 79.389280][ T1219] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 79.399401][ T1219] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 79.410513][ T1219] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 79.422855][ T4273] device veth0_macvtap entered promiscuous mode [ 79.435300][ T4273] device veth1_macvtap entered promiscuous mode [ 79.456757][ T4273] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 79.467262][ T1219] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 79.477580][ T1219] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 79.487855][ T1219] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 79.498085][ T1219] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 79.513881][ T4273] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 79.524163][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 79.533919][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 79.548804][ T4273] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 79.558188][ T4273] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 79.567457][ T4273] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 79.576574][ T4273] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 2025/08/24 08:06:36 executed programs: 0 [ 80.333677][ T4296] chnl_net:caif_netlink_parms(): no params data found [ 80.395188][ T9] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 80.409429][ T4296] bridge0: port 1(bridge_slave_0) entered blocking state [ 80.417288][ T4296] bridge0: port 1(bridge_slave_0) entered disabled state [ 80.428292][ T4296] device bridge_slave_0 entered promiscuous mode [ 80.439219][ T4296] bridge0: port 2(bridge_slave_1) entered blocking state [ 80.446597][ T4296] bridge0: port 2(bridge_slave_1) entered disabled state [ 80.455299][ T4296] device bridge_slave_1 entered promiscuous mode [ 80.477470][ T4296] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 80.488934][ T4296] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 80.514110][ T4296] team0: Port device team_slave_0 added [ 80.523004][ T4296] team0: Port device team_slave_1 added [ 80.543042][ T4296] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 80.550031][ T4296] 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. [ 80.577206][ T4296] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 80.591571][ T4296] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 80.598559][ T4296] 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. [ 80.626555][ T4296] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 80.669449][ T4296] device hsr_slave_0 entered promiscuous mode [ 80.678012][ T4296] device hsr_slave_1 entered promiscuous mode [ 80.685832][ T4296] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 80.693843][ T4296] Cannot create hsr debugfs directory [ 82.192182][ T4285] Bluetooth: hci0: command 0x0409 tx timeout [ 82.739701][ T9] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 84.262671][ T4259] Bluetooth: hci0: command 0x041b tx timeout [ 84.698240][ T9] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 84.761637][ T9] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 85.595278][ T4296] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 85.607169][ T4296] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 85.617831][ T4296] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 85.636101][ T4296] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 85.708236][ T4296] 8021q: adding VLAN 0 to HW filter on device bond0 [ 85.723424][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 85.732220][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 85.744543][ T4296] 8021q: adding VLAN 0 to HW filter on device team0 [ 85.775212][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 85.784602][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 85.796045][ T155] bridge0: port 1(bridge_slave_0) entered blocking state [ 85.803194][ T155] bridge0: port 1(bridge_slave_0) entered forwarding state [ 85.813308][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 85.843872][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 85.853857][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 85.863488][ T144] bridge0: port 2(bridge_slave_1) entered blocking state [ 85.870990][ T144] bridge0: port 2(bridge_slave_1) entered forwarding state [ 85.898871][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 85.914639][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 85.926217][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 85.938505][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 85.968756][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 85.977174][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 85.986594][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 85.996750][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 86.006089][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 86.018799][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 86.028292][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 86.042176][ T4296] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 86.167049][ T1219] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 86.175524][ T1219] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 86.195060][ T4296] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 86.210438][ T9] device hsr_slave_0 left promiscuous mode [ 86.217557][ T9] device hsr_slave_1 left promiscuous mode [ 86.225151][ T9] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 86.233138][ T9] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 86.242189][ T9] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 86.249634][ T9] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 86.257612][ T9] device bridge_slave_1 left promiscuous mode [ 86.264913][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 86.279870][ T9] device bridge_slave_0 left promiscuous mode [ 86.287340][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 86.305074][ T9] device veth1_macvtap left promiscuous mode [ 86.312236][ T9] device veth0_macvtap left promiscuous mode [ 86.318497][ T9] device veth1_vlan left promiscuous mode [ 86.324653][ T9] device veth0_vlan left promiscuous mode [ 86.341179][ T4321] Bluetooth: hci0: command 0x040f tx timeout [ 86.485877][ T9] team0 (unregistering): Port device team_slave_1 removed [ 86.498810][ T9] team0 (unregistering): Port device team_slave_0 removed [ 86.513650][ T9] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 86.528085][ T9] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 86.587666][ T9] bond0 (unregistering): Released all slaves [ 86.652754][ T1219] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 86.662663][ T1219] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 86.684363][ T1219] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 86.693805][ T1219] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 86.703141][ T1219] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 86.711321][ T1219] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 86.720182][ T4296] device veth0_vlan entered promiscuous mode [ 86.737616][ T4296] device veth1_vlan entered promiscuous mode [ 86.766802][ T1219] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 86.775675][ T1219] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 86.789318][ T4296] device veth0_macvtap entered promiscuous mode [ 86.800075][ T4296] device veth1_macvtap entered promiscuous mode [ 86.818985][ T4296] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 86.833461][ T1219] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 86.842112][ T1219] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 86.850171][ T1219] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 86.859349][ T1219] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 86.872824][ T4296] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 86.880289][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 86.889797][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 86.902158][ T4296] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 86.911653][ T4296] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 86.920469][ T4296] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 86.929818][ T4296] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 87.000740][ T155] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 87.019327][ T155] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 87.035634][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 87.049385][ T144] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 87.064954][ T144] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 87.076405][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 87.143559][ T21] cfg80211: failed to load regulatory.db [ 87.323881][ T4357] [ 87.326708][ T4357] ====================================================== [ 87.333754][ T4357] WARNING: possible circular locking dependency detected [ 87.340939][ T4357] 5.15.189-syzkaller #0 Not tainted [ 87.346332][ T4357] ------------------------------------------------------ [ 87.353373][ T4357] syz.0.17/4357 is trying to acquire lock: [ 87.359190][ T4357] ffff88802872cc28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xc1/0x1b0 [ 87.370367][ T4357] [ 87.370367][ T4357] but task is already holding lock: [ 87.377852][ T4357] ffffffff8d4be228 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 87.387550][ T4357] [ 87.387550][ T4357] which lock already depends on the new lock. [ 87.387550][ T4357] [ 87.398162][ T4357] [ 87.398162][ T4357] the existing dependency chain (in reverse order) is: [ 87.407457][ T4357] [ 87.407457][ T4357] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 87.415573][ T4357] __mutex_lock_common+0x1eb/0x2390 [ 87.421325][ T4357] mutex_lock_nested+0x17/0x20 [ 87.426751][ T4357] rfkill_register+0x33/0x8a0 [ 87.432000][ T4357] hci_register_dev+0x452/0x970 [ 87.437398][ T4357] vhci_create_device+0x32c/0x5c0 [ 87.442980][ T4357] vhci_write+0x391/0x450 [ 87.447856][ T4357] vfs_write+0x712/0xd00 [ 87.452677][ T4357] ksys_write+0x14d/0x250 [ 87.457560][ T4357] do_syscall_64+0x4c/0xa0 [ 87.462531][ T4357] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 87.468972][ T4357] [ 87.468972][ T4357] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 87.476830][ T4357] __mutex_lock_common+0x1eb/0x2390 [ 87.482589][ T4357] mutex_lock_nested+0x17/0x20 [ 87.487904][ T4357] vhci_send_frame+0x88/0x100 [ 87.493137][ T4357] hci_send_frame+0x1a9/0x2e0 [ 87.498365][ T4357] hci_tx_work+0x9f9/0x1710 [ 87.503454][ T4357] process_one_work+0x863/0x1000 [ 87.509032][ T4357] worker_thread+0xaa8/0x12a0 [ 87.514386][ T4357] kthread+0x436/0x520 [ 87.519145][ T4357] ret_from_fork+0x1f/0x30 [ 87.524367][ T4357] [ 87.524367][ T4357] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 87.533872][ T4357] __flush_work+0xdd/0x1b0 [ 87.539269][ T4357] hci_dev_do_close+0x1e7/0x1030 [ 87.544857][ T4357] hci_unregister_dev+0x2d7/0x580 [ 87.550913][ T4357] vhci_release+0x73/0xc0 [ 87.556233][ T4357] __fput+0x234/0x930 [ 87.561135][ T4357] task_work_run+0x125/0x1a0 [ 87.566635][ T4357] do_exit+0x61e/0x20a0 [ 87.571339][ T4357] do_group_exit+0x12e/0x300 [ 87.576743][ T4357] get_signal+0x6ca/0x12c0 [ 87.581965][ T4357] arch_do_signal_or_restart+0xc1/0x1300 [ 87.588251][ T4357] exit_to_user_mode_loop+0x9e/0x130 [ 87.594105][ T4357] exit_to_user_mode_prepare+0xb1/0x140 [ 87.600434][ T4357] syscall_exit_to_user_mode+0x16/0x40 [ 87.606581][ T4357] do_syscall_64+0x58/0xa0 [ 87.611575][ T4357] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 87.618022][ T4357] [ 87.618022][ T4357] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 87.625793][ T4357] __mutex_lock_common+0x1eb/0x2390 [ 87.631639][ T4357] mutex_lock_nested+0x17/0x20 [ 87.637696][ T4357] bg_scan_update+0x44/0x3b0 [ 87.642846][ T4357] process_one_work+0x863/0x1000 [ 87.648374][ T4357] worker_thread+0xaa8/0x12a0 [ 87.653608][ T4357] kthread+0x436/0x520 [ 87.658227][ T4357] ret_from_fork+0x1f/0x30 [ 87.663195][ T4357] [ 87.663195][ T4357] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 87.673130][ T4357] __lock_acquire+0x2c33/0x7c60 [ 87.678605][ T4357] lock_acquire+0x197/0x3f0 [ 87.683747][ T4357] __flush_work+0xdd/0x1b0 [ 87.688719][ T4357] __cancel_work_timer+0x3ac/0x520 [ 87.694477][ T4357] hci_request_cancel_all+0xcc/0x300 [ 87.700400][ T4357] hci_dev_do_close+0x4e/0x1030 [ 87.706120][ T4357] hci_rfkill_set_block+0x10a/0x190 [ 87.711956][ T4357] rfkill_set_block+0x1c6/0x420 [ 87.717354][ T4357] rfkill_fop_write+0x458/0x560 [ 87.722754][ T4357] vfs_write+0x300/0xd00 [ 87.727536][ T4357] ksys_write+0x14d/0x250 [ 87.732536][ T4357] do_syscall_64+0x4c/0xa0 [ 87.737568][ T4357] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 87.744192][ T4357] [ 87.744192][ T4357] other info that might help us debug this: [ 87.744192][ T4357] [ 87.754434][ T4357] Chain exists of: [ 87.754434][ T4357] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 87.754434][ T4357] [ 87.770198][ T4357] Possible unsafe locking scenario: [ 87.770198][ T4357] [ 87.777765][ T4357] CPU0 CPU1 [ 87.783153][ T4357] ---- ---- [ 87.788532][ T4357] lock(rfkill_global_mutex); [ 87.793316][ T4357] lock(&data->open_mutex); [ 87.800452][ T4357] lock(rfkill_global_mutex); [ 87.807769][ T4357] lock((work_completion)(&hdev->bg_scan_update)); [ 87.814381][ T4357] [ 87.814381][ T4357] *** DEADLOCK *** [ 87.814381][ T4357] [ 87.822536][ T4357] 1 lock held by syz.0.17/4357: [ 87.827405][ T4357] #0: ffffffff8d4be228 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 87.837617][ T4357] [ 87.837617][ T4357] stack backtrace: [ 87.843882][ T4357] CPU: 0 PID: 4357 Comm: syz.0.17 Not tainted 5.15.189-syzkaller #0 [ 87.852108][ T4357] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 87.862203][ T4357] Call Trace: [ 87.865561][ T4357] [ 87.868540][ T4357] dump_stack_lvl+0x168/0x230 [ 87.873494][ T4357] ? load_image+0x3b0/0x3b0 [ 87.878027][ T4357] ? show_regs_print_info+0x20/0x20 [ 87.883578][ T4357] ? print_circular_bug+0x12b/0x1a0 [ 87.888909][ T4357] check_noncircular+0x274/0x310 [ 87.893964][ T4357] ? add_chain_block+0x940/0x940 [ 87.898940][ T4357] ? lockdep_lock+0xdc/0x1e0 [ 87.903749][ T4357] ? __lock_acquire+0x12d9/0x7c60 [ 87.908814][ T4357] ? lockdep_lock+0x1e0/0x1e0 [ 87.913507][ T4357] ? mark_lock+0x94/0x320 [ 87.917844][ T4357] __lock_acquire+0x2c33/0x7c60 [ 87.922709][ T4357] ? verify_lock_unused+0x140/0x140 [ 87.927914][ T4357] ? verify_lock_unused+0x140/0x140 [ 87.933121][ T4357] lock_acquire+0x197/0x3f0 [ 87.937631][ T4357] ? __flush_work+0xc1/0x1b0 [ 87.942220][ T4357] ? __lock_acquire+0x7c60/0x7c60 [ 87.947252][ T4357] ? read_lock_is_recursive+0x10/0x10 [ 87.952754][ T4357] ? start_flush_work+0x776/0x820 [ 87.957807][ T4357] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 87.963738][ T4357] ? _raw_spin_unlock+0x40/0x40 [ 87.968617][ T4357] __flush_work+0xdd/0x1b0 [ 87.973044][ T4357] ? __flush_work+0xc1/0x1b0 [ 87.977728][ T4357] ? flush_work+0x20/0x20 [ 87.982150][ T4357] ? try_to_grab_pending+0xf3/0x7e0 [ 87.987364][ T4357] ? lockdep_hardirqs_off+0x70/0x100 [ 87.992757][ T4357] ? mark_lock+0x94/0x320 [ 87.997184][ T4357] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 88.003295][ T4357] ? lock_chain_count+0x20/0x20 [ 88.008342][ T4357] ? mark_lock+0x94/0x320 [ 88.012701][ T4357] ? __cancel_work_timer+0x331/0x520 [ 88.018002][ T4357] __cancel_work_timer+0x3ac/0x520 [ 88.023127][ T4357] ? cancel_work_sync+0x20/0x20 [ 88.028002][ T4357] ? __cancel_work+0x1f4/0x2d0 [ 88.032769][ T4357] ? lockdep_hardirqs_on+0x94/0x140 [ 88.037970][ T4357] ? __cancel_work+0x26f/0x2d0 [ 88.042740][ T4357] ? cancel_work+0x20/0x20 [ 88.047160][ T4357] ? lock_chain_count+0x20/0x20 [ 88.052254][ T4357] hci_request_cancel_all+0xcc/0x300 [ 88.057571][ T4357] hci_dev_do_close+0x4e/0x1030 [ 88.062448][ T4357] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 88.068372][ T4357] ? _raw_spin_unlock+0x40/0x40 [ 88.073245][ T4357] hci_rfkill_set_block+0x10a/0x190 [ 88.078639][ T4357] ? rcu_lock_release+0x20/0x20 [ 88.083516][ T4357] rfkill_set_block+0x1c6/0x420 [ 88.088378][ T4357] rfkill_fop_write+0x458/0x560 [ 88.093237][ T4357] ? verify_lock_unused+0x140/0x140 [ 88.098443][ T4357] ? rfkill_fop_read+0x4b0/0x4b0 [ 88.103548][ T4357] ? common_file_perm+0x150/0x1c0 [ 88.108591][ T4357] ? fsnotify_perm+0x5d/0x560 [ 88.113277][ T4357] ? security_file_permission+0x75/0xa0 [ 88.119194][ T4357] ? rfkill_fop_read+0x4b0/0x4b0 [ 88.124163][ T4357] vfs_write+0x300/0xd00 [ 88.128679][ T4357] ? file_end_write+0x250/0x250 [ 88.133638][ T4357] ? __context_tracking_exit+0x4c/0x80 [ 88.139101][ T4357] ? __lock_acquire+0x7c60/0x7c60 [ 88.144328][ T4357] ? __fdget_pos+0x1e2/0x370 [ 88.148951][ T4357] ksys_write+0x14d/0x250 [ 88.153385][ T4357] ? __ia32_sys_read+0x80/0x80 [ 88.158191][ T4357] ? lockdep_hardirqs_on+0x94/0x140 [ 88.163605][ T4357] do_syscall_64+0x4c/0xa0 [ 88.168050][ T4357] ? clear_bhb_loop+0x30/0x80 [ 88.172741][ T4357] ? clear_bhb_loop+0x30/0x80 [ 88.177519][ T4357] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 88.183529][ T4357] RIP: 0033:0x7f6892533be9 [ 88.187964][ T4357] 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 a8 ff ff ff f7 d8 64 89 01 48 [ 88.208113][ T4357] RSP: 002b:00007fff5737bba8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 88.216553][ T4357] RAX: ffffffffffffffda RBX: 00007f689275afa0 RCX: 00007f6892533be9 [ 88.224536][ T4357] RDX: 0000000000000008 RSI: 0000200000000080 RDI: 0000000000000003 [ 88.232521][ T4357] RBP: 00007f68925b6e19 R08: 0000000000000000 R09: 0000000000000000 [ 88.240500][ T4357] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 88.248491][ T4357] R13: 00007f689275afa0 R14: 00007f689275afa0 R15: 0000000000000003 [ 88.256482][ T4357]