Warning: Permanently added '10.128.0.250' (ED25519) to the list of known hosts. 2025/09/29 04:31:56 parsed 1 programs [ 65.462156][ T4191] cgroup: Unknown subsys name 'net' [ 65.597859][ T4191] cgroup: Unknown subsys name 'rlimit' [ 67.146989][ T4191] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 69.964448][ T4227] chnl_net:caif_netlink_parms(): no params data found [ 70.036101][ T4227] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.044264][ T4227] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.054276][ T4227] device bridge_slave_0 entered promiscuous mode [ 70.064609][ T4227] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.073143][ T4227] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.081763][ T4227] device bridge_slave_1 entered promiscuous mode [ 70.113659][ T4227] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 70.126581][ T4227] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 70.159114][ T4227] team0: Port device team_slave_0 added [ 70.168106][ T4227] team0: Port device team_slave_1 added [ 70.194732][ T4227] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 70.201791][ T4227] 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. [ 70.228129][ T4227] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 70.241783][ T4227] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 70.248756][ T4227] 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. [ 70.275068][ T4227] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 70.313902][ T4227] device hsr_slave_0 entered promiscuous mode [ 70.321021][ T4227] device hsr_slave_1 entered promiscuous mode [ 70.456323][ T4227] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 70.468272][ T4227] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 70.480000][ T4227] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 70.491708][ T4227] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 70.518238][ T4227] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.525577][ T4227] bridge0: port 2(bridge_slave_1) entered forwarding state [ 70.533563][ T4227] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.540631][ T4227] bridge0: port 1(bridge_slave_0) entered forwarding state [ 70.590185][ T4227] 8021q: adding VLAN 0 to HW filter on device bond0 [ 70.607149][ T3088] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 70.635617][ T3088] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.696954][ T3088] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.742450][ T4227] 8021q: adding VLAN 0 to HW filter on device team0 [ 70.760426][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 70.770074][ T154] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.777181][ T154] bridge0: port 1(bridge_slave_0) entered forwarding state [ 70.787949][ T3088] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 70.796768][ T3088] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.803956][ T3088] bridge0: port 2(bridge_slave_1) entered forwarding state [ 70.818207][ T3088] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 70.832239][ T3088] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 70.847276][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 70.857069][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 70.867981][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 70.876349][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 70.885574][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 70.896354][ T1182] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 70.904941][ T1182] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 70.916849][ T1182] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 70.925649][ T1182] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 70.935767][ T4227] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 71.025479][ T1182] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 71.033949][ T1182] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 71.053551][ T4227] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 71.083163][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 71.093236][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 71.112010][ T1182] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 71.120369][ T1182] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 71.129735][ T1182] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 71.137778][ T1182] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 71.148413][ T4227] device veth0_vlan entered promiscuous mode [ 71.177248][ T4227] device veth1_vlan entered promiscuous mode [ 71.199338][ T3088] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 71.208071][ T3088] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 71.216602][ T3088] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 71.226241][ T3088] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 71.236930][ T4227] device veth0_macvtap entered promiscuous mode [ 71.265129][ T4227] device veth1_macvtap entered promiscuous mode [ 71.281292][ T4227] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 71.288811][ T1182] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 71.298541][ T1182] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 71.307466][ T1182] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 71.316062][ T1182] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 71.342766][ T4227] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 71.350084][ T1182] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 71.359964][ T1182] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 71.372113][ T4227] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.381313][ T4227] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.390031][ T4227] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.398944][ T4227] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.444210][ T1422] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.450999][ T1422] ieee802154 phy1 wpan1: encryption failed: -22 [ 71.518738][ T4227] syz-executor (4227) used greatest stack depth: 21152 bytes left [ 72.736954][ T3088] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 72.760738][ T3088] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 72.770540][ T1182] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 72.787007][ T1182] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 72.797301][ T1182] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 72.809308][ T3088] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2025/09/29 04:32:06 executed programs: 0 [ 73.406402][ T1231] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 73.477282][ T4296] chnl_net:caif_netlink_parms(): no params data found [ 73.522443][ T4296] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.529775][ T4296] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.537749][ T4296] device bridge_slave_0 entered promiscuous mode [ 73.545655][ T4296] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.552904][ T4296] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.560999][ T4296] device bridge_slave_1 entered promiscuous mode [ 73.583241][ T4296] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 73.594444][ T4296] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 73.618136][ T4296] team0: Port device team_slave_0 added [ 73.625508][ T4296] team0: Port device team_slave_1 added [ 73.645232][ T4296] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 73.652395][ 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. [ 73.678871][ T4296] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 73.691263][ T4296] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 73.698230][ 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. [ 73.725046][ T4296] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 73.756239][ T4296] device hsr_slave_0 entered promiscuous mode [ 73.763417][ T4296] device hsr_slave_1 entered promiscuous mode [ 73.770374][ T4296] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 73.778403][ T4296] Cannot create hsr debugfs directory [ 75.432093][ T4260] Bluetooth: hci0: command 0x0409 tx timeout [ 76.059103][ T1231] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 76.117407][ T1231] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 76.188155][ T1231] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 77.086916][ T4296] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 77.096153][ T4296] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 77.105567][ T4296] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 77.129107][ T4296] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 77.203278][ T4296] 8021q: adding VLAN 0 to HW filter on device bond0 [ 77.216556][ T1182] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 77.226740][ T1182] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 77.238522][ T4296] 8021q: adding VLAN 0 to HW filter on device team0 [ 77.269860][ T1182] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 77.279626][ T1182] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 77.289211][ T1182] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.296329][ T1182] bridge0: port 1(bridge_slave_0) entered forwarding state [ 77.304436][ T1182] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 77.314940][ T1182] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 77.324977][ T1182] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 77.333537][ T1182] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.340588][ T1182] bridge0: port 2(bridge_slave_1) entered forwarding state [ 77.370942][ T1182] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 77.383093][ T1182] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 77.394719][ T3088] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 77.404219][ T3088] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 77.413401][ T3088] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 77.426034][ T3088] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 77.436148][ T3088] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 77.462888][ T3088] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 77.472265][ T3088] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 77.484380][ T4296] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 77.495636][ T4296] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 77.504335][ T3088] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 77.512539][ T4260] Bluetooth: hci0: command 0x041b tx timeout [ 77.518332][ T3088] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 77.618351][ T3088] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 77.627028][ T3088] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 77.647599][ T4296] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 77.676020][ T1182] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 77.685150][ T1182] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 77.713998][ T4296] device veth0_vlan entered promiscuous mode [ 77.720476][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 77.732816][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 77.745781][ T4296] device veth1_vlan entered promiscuous mode [ 77.753988][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 77.764031][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 77.772026][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 77.784856][ T1231] device hsr_slave_0 left promiscuous mode [ 77.791633][ T1231] device hsr_slave_1 left promiscuous mode [ 77.798054][ T1231] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 77.805927][ T1231] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 77.814234][ T1231] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 77.821750][ T1231] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 77.829503][ T1231] device bridge_slave_1 left promiscuous mode [ 77.836888][ T1231] bridge0: port 2(bridge_slave_1) entered disabled state [ 77.850062][ T1231] device bridge_slave_0 left promiscuous mode [ 77.857476][ T1231] bridge0: port 1(bridge_slave_0) entered disabled state [ 77.876109][ T1231] device veth1_macvtap left promiscuous mode [ 77.882476][ T1231] device veth0_macvtap left promiscuous mode [ 77.888577][ T1231] device veth1_vlan left promiscuous mode [ 77.895178][ T1231] device veth0_vlan left promiscuous mode [ 78.059169][ T1231] team0 (unregistering): Port device team_slave_1 removed [ 78.073111][ T1231] team0 (unregistering): Port device team_slave_0 removed [ 78.087249][ T1231] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 78.105250][ T1231] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 78.163854][ T1231] bond0 (unregistering): Released all slaves [ 78.261426][ T3088] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 78.269974][ T3088] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 78.281736][ T4296] device veth0_macvtap entered promiscuous mode [ 78.290616][ T4296] device veth1_macvtap entered promiscuous mode [ 78.310512][ T4296] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 78.325796][ T1182] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 78.341164][ T1182] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 78.350299][ T1182] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 78.359039][ T1182] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 78.372337][ T4296] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 78.382395][ T3088] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 78.391529][ T3088] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 78.402225][ T4296] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.411748][ T4296] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.420443][ T4296] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.429228][ T4296] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.501622][ T1182] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 78.509578][ T1182] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 78.540349][ T3088] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 78.542002][ T1182] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 78.558192][ T3088] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 78.567976][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 78.671227][ T4347] [ 78.673608][ T4347] ====================================================== [ 78.680640][ T4347] WARNING: possible circular locking dependency detected [ 78.687686][ T4347] syzkaller #0 Not tainted [ 78.692117][ T4347] ------------------------------------------------------ [ 78.699148][ T4347] syz.0.17/4347 is trying to acquire lock: [ 78.704968][ T4347] ffff888077bfcc28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xc1/0x1b0 [ 78.716057][ T4347] [ 78.716057][ T4347] but task is already holding lock: [ 78.723438][ T4347] ffffffff8d4c0468 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 78.733136][ T4347] [ 78.733136][ T4347] which lock already depends on the new lock. [ 78.733136][ T4347] [ 78.743549][ T4347] [ 78.743549][ T4347] the existing dependency chain (in reverse order) is: [ 78.752582][ T4347] [ 78.752582][ T4347] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 78.760596][ T4347] __mutex_lock_common+0x1eb/0x2390 [ 78.766344][ T4347] mutex_lock_nested+0x17/0x20 [ 78.771663][ T4347] rfkill_register+0x33/0x8a0 [ 78.776895][ T4347] hci_register_dev+0x452/0x970 [ 78.782288][ T4347] vhci_create_device+0x32c/0x5c0 [ 78.787853][ T4347] vhci_write+0x391/0x450 [ 78.792724][ T4347] vfs_write+0x712/0xd00 [ 78.797506][ T4347] ksys_write+0x14d/0x250 [ 78.802375][ T4347] do_syscall_64+0x4c/0xa0 [ 78.807341][ T4347] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 78.813789][ T4347] [ 78.813789][ T4347] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 78.821630][ T4347] __mutex_lock_common+0x1eb/0x2390 [ 78.827376][ T4347] mutex_lock_nested+0x17/0x20 [ 78.832692][ T4347] vhci_send_frame+0x88/0x100 [ 78.837916][ T4347] hci_send_frame+0x1a9/0x2e0 [ 78.843137][ T4347] hci_tx_work+0x9f9/0x1710 [ 78.848188][ T4347] process_one_work+0x863/0x1000 [ 78.853666][ T4347] worker_thread+0xaa8/0x12a0 [ 78.858887][ T4347] kthread+0x436/0x520 [ 78.863492][ T4347] ret_from_fork+0x1f/0x30 [ 78.868452][ T4347] [ 78.868452][ T4347] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 78.877685][ T4347] __flush_work+0xdd/0x1b0 [ 78.882652][ T4347] hci_dev_do_close+0x1e7/0x1030 [ 78.888134][ T4347] hci_unregister_dev+0x2d7/0x580 [ 78.893705][ T4347] vhci_release+0x73/0xc0 [ 78.898575][ T4347] __fput+0x234/0x930 [ 78.903097][ T4347] task_work_run+0x125/0x1a0 [ 78.908231][ T4347] do_exit+0x61e/0x20a0 [ 78.912947][ T4347] do_group_exit+0x12e/0x300 [ 78.918074][ T4347] get_signal+0x6ca/0x12c0 [ 78.923029][ T4347] arch_do_signal_or_restart+0xc1/0x1300 [ 78.929210][ T4347] exit_to_user_mode_loop+0x9e/0x130 [ 78.935039][ T4347] exit_to_user_mode_prepare+0xee/0x180 [ 78.941128][ T4347] irqentry_exit_to_user_mode+0x5/0x30 [ 78.947137][ T4347] exc_page_fault+0x88/0x100 [ 78.952363][ T4347] asm_exc_page_fault+0x22/0x30 [ 78.957757][ T4347] [ 78.957757][ T4347] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 78.965420][ T4347] __mutex_lock_common+0x1eb/0x2390 [ 78.971162][ T4347] mutex_lock_nested+0x17/0x20 [ 78.976468][ T4347] bg_scan_update+0x44/0x3b0 [ 78.981616][ T4347] process_one_work+0x863/0x1000 [ 78.987113][ T4347] worker_thread+0xaa8/0x12a0 [ 78.992536][ T4347] kthread+0x436/0x520 [ 78.997153][ T4347] ret_from_fork+0x1f/0x30 [ 79.002115][ T4347] [ 79.002115][ T4347] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 79.011956][ T4347] __lock_acquire+0x2c33/0x7c60 [ 79.017444][ T4347] lock_acquire+0x197/0x3f0 [ 79.022492][ T4347] __flush_work+0xdd/0x1b0 [ 79.027456][ T4347] __cancel_work_timer+0x3ac/0x520 [ 79.033151][ T4347] hci_request_cancel_all+0xcc/0x300 [ 79.038991][ T4347] hci_dev_do_close+0x4e/0x1030 [ 79.044385][ T4347] hci_rfkill_set_block+0x10a/0x190 [ 79.050128][ T4347] rfkill_set_block+0x1c6/0x420 [ 79.055525][ T4347] rfkill_fop_write+0x458/0x560 [ 79.061057][ T4347] vfs_write+0x300/0xd00 [ 79.065847][ T4347] ksys_write+0x14d/0x250 [ 79.070721][ T4347] do_syscall_64+0x4c/0xa0 [ 79.075682][ T4347] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 79.082124][ T4347] [ 79.082124][ T4347] other info that might help us debug this: [ 79.082124][ T4347] [ 79.092372][ T4347] Chain exists of: [ 79.092372][ T4347] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 79.092372][ T4347] [ 79.108137][ T4347] Possible unsafe locking scenario: [ 79.108137][ T4347] [ 79.115608][ T4347] CPU0 CPU1 [ 79.120998][ T4347] ---- ---- [ 79.126396][ T4347] lock(rfkill_global_mutex); [ 79.131201][ T4347] lock(&data->open_mutex); [ 79.138330][ T4347] lock(rfkill_global_mutex); [ 79.145649][ T4347] lock((work_completion)(&hdev->bg_scan_update)); [ 79.152264][ T4347] [ 79.152264][ T4347] *** DEADLOCK *** [ 79.152264][ T4347] [ 79.160429][ T4347] 1 lock held by syz.0.17/4347: [ 79.165387][ T4347] #0: ffffffff8d4c0468 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 79.175641][ T4347] [ 79.175641][ T4347] stack backtrace: [ 79.181567][ T4347] CPU: 0 PID: 4347 Comm: syz.0.17 Not tainted syzkaller #0 [ 79.188798][ T4347] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 79.198897][ T4347] Call Trace: [ 79.202194][ T4347] [ 79.205145][ T4347] dump_stack_lvl+0x168/0x230 [ 79.209864][ T4347] ? load_image+0x3b0/0x3b0 [ 79.214393][ T4347] ? show_regs_print_info+0x20/0x20 [ 79.219632][ T4347] ? print_circular_bug+0x12b/0x1a0 [ 79.224853][ T4347] check_noncircular+0x274/0x310 [ 79.229811][ T4347] ? add_chain_block+0x940/0x940 [ 79.234771][ T4347] ? lockdep_lock+0xdc/0x1e0 [ 79.239384][ T4347] ? __lock_acquire+0x12d9/0x7c60 [ 79.244464][ T4347] ? lockdep_lock+0x1e0/0x1e0 [ 79.249163][ T4347] ? mark_lock+0x94/0x320 [ 79.253511][ T4347] ? _find_first_zero_bit+0xce/0xf0 [ 79.258732][ T4347] __lock_acquire+0x2c33/0x7c60 [ 79.263617][ T4347] ? verify_lock_unused+0x140/0x140 [ 79.268845][ T4347] ? verify_lock_unused+0x140/0x140 [ 79.274090][ T4347] lock_acquire+0x197/0x3f0 [ 79.278636][ T4347] ? __flush_work+0xc1/0x1b0 [ 79.283250][ T4347] ? __lock_acquire+0x7c60/0x7c60 [ 79.288299][ T4347] ? read_lock_is_recursive+0x10/0x10 [ 79.293690][ T4347] ? start_flush_work+0x776/0x820 [ 79.298737][ T4347] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 79.304659][ T4347] ? _raw_spin_unlock+0x40/0x40 [ 79.309538][ T4347] __flush_work+0xdd/0x1b0 [ 79.314006][ T4347] ? __flush_work+0xc1/0x1b0 [ 79.318633][ T4347] ? flush_work+0x20/0x20 [ 79.322981][ T4347] ? try_to_grab_pending+0xf3/0x7e0 [ 79.328198][ T4347] ? lockdep_hardirqs_off+0x70/0x100 [ 79.333521][ T4347] ? mark_lock+0x94/0x320 [ 79.337873][ T4347] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 79.343879][ T4347] ? lock_chain_count+0x20/0x20 [ 79.348758][ T4347] ? mark_lock+0x94/0x320 [ 79.353119][ T4347] ? __cancel_work_timer+0x331/0x520 [ 79.358443][ T4347] __cancel_work_timer+0x3ac/0x520 [ 79.363582][ T4347] ? cancel_work_sync+0x20/0x20 [ 79.368457][ T4347] ? __cancel_work+0x1f4/0x2d0 [ 79.373241][ T4347] ? lockdep_hardirqs_on+0x94/0x140 [ 79.378455][ T4347] ? __cancel_work+0x26f/0x2d0 [ 79.383243][ T4347] ? cancel_work+0x20/0x20 [ 79.387675][ T4347] ? lock_chain_count+0x20/0x20 [ 79.392550][ T4347] hci_request_cancel_all+0xcc/0x300 [ 79.397861][ T4347] hci_dev_do_close+0x4e/0x1030 [ 79.402736][ T4347] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 79.408653][ T4347] ? _raw_spin_unlock+0x40/0x40 [ 79.413533][ T4347] hci_rfkill_set_block+0x10a/0x190 [ 79.418754][ T4347] ? rcu_lock_release+0x20/0x20 [ 79.423630][ T4347] rfkill_set_block+0x1c6/0x420 [ 79.428507][ T4347] rfkill_fop_write+0x458/0x560 [ 79.433384][ T4347] ? verify_lock_unused+0x140/0x140 [ 79.438628][ T4347] ? rfkill_fop_read+0x4b0/0x4b0 [ 79.443593][ T4347] ? common_file_perm+0xc0/0x1c0 [ 79.448556][ T4347] ? fsnotify_perm+0x5d/0x560 [ 79.453261][ T4347] ? security_file_permission+0x75/0xa0 [ 79.458829][ T4347] ? rfkill_fop_read+0x4b0/0x4b0 [ 79.463795][ T4347] vfs_write+0x300/0xd00 [ 79.468065][ T4347] ? file_end_write+0x250/0x250 [ 79.472939][ T4347] ? __context_tracking_exit+0x4c/0x80 [ 79.478425][ T4347] ? __lock_acquire+0x7c60/0x7c60 [ 79.483478][ T4347] ? __fdget_pos+0x1e2/0x370 [ 79.488109][ T4347] ksys_write+0x14d/0x250 [ 79.492461][ T4347] ? __ia32_sys_read+0x80/0x80 [ 79.497247][ T4347] ? lockdep_hardirqs_on+0x94/0x140 [ 79.502470][ T4347] do_syscall_64+0x4c/0xa0 [ 79.506998][ T4347] ? clear_bhb_loop+0x30/0x80 [ 79.511702][ T4347] ? clear_bhb_loop+0x30/0x80 [ 79.516405][ T4347] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 79.522340][ T4347] RIP: 0033:0x7fa64a9c9ec9 [ 79.526775][ T4347] 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 [ 79.546403][ T4347] RSP: 002b:00007fff9e46ee78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 79.554842][ T4347] RAX: ffffffffffffffda RBX: 00007fa64ac20fa0 RCX: 00007fa64a9c9ec9 [ 79.562837][ T4347] RDX: 0000000000000008 RSI: 0000200000000080 RDI: 0000000000000003 [ 79.570828][ T4347] RBP: 00007fa64aa4cf91 R08: 0000000000000000 R09: 0000000000000000 [ 79.578820][ T4347] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 79.586835][ T4347] R13: 00007fa64ac20fa0 R14: 00007fa64ac20fa0 R15: 0000000000000003 [ 79.594842][ T4347] [ 79.614619][ T4202] Bluetooth: hci0: command 0x040f tx timeout