Warning: Permanently added '10.128.1.126' (ED25519) to the list of known hosts. 2026/01/16 06:26:59 parsed 1 programs [ 70.763571][ T4188] cgroup: Unknown subsys name 'net' [ 70.866704][ T4188] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 71.415941][ T1422] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.422461][ T1422] ieee802154 phy1 wpan1: encryption failed: -22 [ 72.449351][ T4188] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 74.197842][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.208431][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.227195][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 74.240026][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.248426][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.260667][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 74.896295][ T4225] chnl_net:caif_netlink_parms(): no params data found [ 74.973550][ T4225] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.981713][ T4225] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.990169][ T4225] device bridge_slave_0 entered promiscuous mode [ 75.000509][ T4225] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.007745][ T4225] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.016039][ T4225] device bridge_slave_1 entered promiscuous mode [ 75.045856][ T4225] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 75.057531][ T4225] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 75.090502][ T4225] team0: Port device team_slave_0 added [ 75.098776][ T4225] team0: Port device team_slave_1 added [ 75.124693][ T4225] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 75.131718][ T4225] 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. [ 75.157830][ T4225] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 75.171791][ T4225] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 75.178964][ T4225] 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. [ 75.205298][ T4225] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 75.249812][ T4225] device hsr_slave_0 entered promiscuous mode [ 75.257041][ T4225] device hsr_slave_1 entered promiscuous mode [ 75.412588][ T4225] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 75.425792][ T4225] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 75.438941][ T4225] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 75.449715][ T4225] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 75.538237][ T4225] 8021q: adding VLAN 0 to HW filter on device bond0 [ 75.552949][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 75.563885][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 75.577677][ T4225] 8021q: adding VLAN 0 to HW filter on device team0 [ 75.589892][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 75.601298][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 75.611226][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.618861][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 75.630291][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 75.654266][ T3019] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 75.665331][ T3019] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 75.673958][ T3019] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.681059][ T3019] bridge0: port 2(bridge_slave_1) entered forwarding state [ 75.689993][ T3019] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 75.699839][ T3019] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 75.710422][ T3019] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 75.720537][ T3019] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 75.746282][ T3019] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 75.756219][ T3019] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 75.767152][ T3019] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 75.776801][ T3019] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 75.785983][ T3019] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 75.798060][ T4225] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 75.938420][ T3019] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 75.947143][ T3019] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 75.964050][ T4225] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 75.999256][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 76.021522][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 76.032136][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 76.041607][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 76.053852][ T4225] device veth0_vlan entered promiscuous mode [ 76.067343][ T4225] device veth1_vlan entered promiscuous mode [ 76.094554][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 76.114211][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 76.122687][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 76.137010][ T4225] device veth0_macvtap entered promiscuous mode [ 76.149958][ T4225] device veth1_macvtap entered promiscuous mode [ 76.170997][ T4225] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 76.179278][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 76.189775][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 76.200444][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 76.214545][ T4225] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 76.229839][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 76.238721][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 76.251410][ T4225] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.261106][ T4225] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.270245][ T4225] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.279521][ T4225] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 2026/01/16 06:27:09 executed programs: 0 [ 78.736661][ T4288] chnl_net:caif_netlink_parms(): no params data found [ 78.805360][ T4288] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.812573][ T4288] bridge0: port 1(bridge_slave_0) entered disabled state [ 78.820702][ T4288] device bridge_slave_0 entered promiscuous mode [ 78.829511][ T4288] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.836862][ T4288] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.845318][ T4288] device bridge_slave_1 entered promiscuous mode [ 78.871169][ T4288] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 78.882659][ T4288] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 78.919553][ T4288] team0: Port device team_slave_0 added [ 78.927736][ T4288] team0: Port device team_slave_1 added [ 78.957409][ T4288] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 78.964725][ T4288] 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. [ 78.993246][ T4288] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 79.007778][ T4288] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 79.016177][ T4288] 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. [ 79.042600][ T4288] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 79.077723][ T4288] device hsr_slave_0 entered promiscuous mode [ 79.084977][ T4288] device hsr_slave_1 entered promiscuous mode [ 79.092195][ T4288] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 79.104144][ T4288] Cannot create hsr debugfs directory [ 79.136678][ T1153] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 80.623856][ T4204] Bluetooth: hci0: command 0x0409 tx timeout [ 81.667238][ T1153] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 81.740050][ T1153] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 81.846305][ T1153] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 82.693819][ T4247] Bluetooth: hci0: command 0x041b tx timeout [ 82.749686][ T4288] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 82.760441][ T4288] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 82.769596][ T4288] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 82.779402][ T4288] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 82.864618][ T4288] 8021q: adding VLAN 0 to HW filter on device bond0 [ 82.878166][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 82.887093][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 82.899549][ T4288] 8021q: adding VLAN 0 to HW filter on device team0 [ 82.911057][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 82.920680][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 82.930185][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 82.937554][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 82.945677][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 82.979523][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 82.988612][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 82.997574][ T154] bridge0: port 2(bridge_slave_1) entered blocking state [ 83.004726][ T154] bridge0: port 2(bridge_slave_1) entered forwarding state [ 83.016521][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 83.054771][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 83.066367][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 83.075941][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 83.085638][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 83.120067][ T3019] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 83.129272][ T3019] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 83.144011][ T3019] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 83.152432][ T3019] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 83.160924][ T3019] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 83.169784][ T3019] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 83.184788][ T4288] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 83.286864][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 83.295570][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 83.307466][ T4288] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 83.354637][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 83.365169][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 83.388088][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 83.396447][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 83.406268][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 83.414274][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 83.424547][ T4288] device veth0_vlan entered promiscuous mode [ 83.460086][ T4288] device veth1_vlan entered promiscuous mode [ 83.480980][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 83.489368][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 83.497682][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 83.508050][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 83.519145][ T4288] device veth0_macvtap entered promiscuous mode [ 83.551296][ T4288] device veth1_macvtap entered promiscuous mode [ 83.567178][ T4288] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 83.579426][ T4288] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 83.592653][ T4288] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 83.600413][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 83.609218][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 83.617847][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 83.626807][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 83.638841][ T4288] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 83.649957][ T4288] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 83.661271][ T4288] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 83.672200][ T4288] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 83.681121][ T4288] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 83.690408][ T4288] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 83.699607][ T4288] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 83.710370][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 83.719359][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 83.790407][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 83.802362][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 83.821194][ T1153] device hsr_slave_0 left promiscuous mode [ 83.829067][ T1153] device hsr_slave_1 left promiscuous mode [ 83.835906][ T1153] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 83.843500][ T1153] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 83.851878][ T1153] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 83.859719][ T1153] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 83.869877][ T1153] device bridge_slave_1 left promiscuous mode [ 83.877056][ T1153] bridge0: port 2(bridge_slave_1) entered disabled state [ 83.891284][ T1153] device bridge_slave_0 left promiscuous mode [ 83.898817][ T1153] bridge0: port 1(bridge_slave_0) entered disabled state [ 83.918385][ T1153] device veth1_macvtap left promiscuous mode [ 83.924901][ T1153] device veth0_macvtap left promiscuous mode [ 83.930977][ T1153] device veth1_vlan left promiscuous mode [ 83.937687][ T1153] device veth0_vlan left promiscuous mode [ 84.121228][ T1153] team0 (unregistering): Port device team_slave_1 removed [ 84.137248][ T1153] team0 (unregistering): Port device team_slave_0 removed [ 84.152517][ T1153] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 84.168328][ T1153] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 84.232374][ T1153] bond0 (unregistering): Released all slaves [ 84.285410][ T3019] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 84.309576][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 84.318692][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 84.330468][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 84.397086][ T4350] [ 84.399476][ T4350] ====================================================== [ 84.406512][ T4350] WARNING: possible circular locking dependency detected [ 84.413537][ T4350] syzkaller #0 Not tainted [ 84.417948][ T4350] ------------------------------------------------------ [ 84.424960][ T4350] syz.0.17/4350 is trying to acquire lock: [ 84.430763][ T4350] ffff888027790c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xc1/0x1b0 [ 84.441912][ T4350] [ 84.441912][ T4350] but task is already holding lock: [ 84.449279][ T4350] ffffffff8d4ba7e8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 84.459206][ T4350] [ 84.459206][ T4350] which lock already depends on the new lock. [ 84.459206][ T4350] [ 84.469736][ T4350] [ 84.469736][ T4350] the existing dependency chain (in reverse order) is: [ 84.478749][ T4350] [ 84.478749][ T4350] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 84.486762][ T4350] __mutex_lock_common+0x1eb/0x2390 [ 84.492629][ T4350] mutex_lock_nested+0x17/0x20 [ 84.498149][ T4350] rfkill_register+0x33/0x8a0 [ 84.503497][ T4350] hci_register_dev+0x452/0x970 [ 84.508892][ T4350] vhci_create_device+0x32c/0x5c0 [ 84.514441][ T4350] vhci_write+0x391/0x450 [ 84.519292][ T4350] vfs_write+0x712/0xd00 [ 84.524071][ T4350] ksys_write+0x14d/0x250 [ 84.528921][ T4350] do_syscall_64+0x4c/0xa0 [ 84.533866][ T4350] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 84.540321][ T4350] [ 84.540321][ T4350] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 84.548136][ T4350] __mutex_lock_common+0x1eb/0x2390 [ 84.554065][ T4350] mutex_lock_nested+0x17/0x20 [ 84.559389][ T4350] vhci_send_frame+0x88/0x100 [ 84.564603][ T4350] hci_send_frame+0x1a9/0x2e0 [ 84.569806][ T4350] hci_tx_work+0x9f9/0x1710 [ 84.574836][ T4350] process_one_work+0x863/0x1000 [ 84.580298][ T4350] worker_thread+0xaa8/0x12a0 [ 84.585494][ T4350] kthread+0x436/0x520 [ 84.590102][ T4350] ret_from_fork+0x1f/0x30 [ 84.595090][ T4350] [ 84.595090][ T4350] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 84.604393][ T4350] __flush_work+0xdd/0x1b0 [ 84.609355][ T4350] hci_dev_do_close+0x1e7/0x1030 [ 84.615005][ T4350] hci_unregister_dev+0x2d7/0x580 [ 84.620681][ T4350] vhci_release+0x73/0xc0 [ 84.625964][ T4350] __fput+0x234/0x930 [ 84.630469][ T4350] task_work_run+0x125/0x1a0 [ 84.635579][ T4350] do_exit+0x61e/0x20a0 [ 84.640254][ T4350] do_group_exit+0x12e/0x300 [ 84.645365][ T4350] get_signal+0x6ca/0x12c0 [ 84.650390][ T4350] arch_do_signal_or_restart+0xc1/0x1300 [ 84.656550][ T4350] exit_to_user_mode_loop+0x9e/0x130 [ 84.662361][ T4350] exit_to_user_mode_prepare+0xee/0x180 [ 84.668449][ T4350] syscall_exit_to_user_mode+0x16/0x40 [ 84.674432][ T4350] do_syscall_64+0x58/0xa0 [ 84.679395][ T4350] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 84.685809][ T4350] [ 84.685809][ T4350] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 84.693451][ T4350] __mutex_lock_common+0x1eb/0x2390 [ 84.699173][ T4350] mutex_lock_nested+0x17/0x20 [ 84.704456][ T4350] bg_scan_update+0x44/0x3b0 [ 84.709570][ T4350] process_one_work+0x863/0x1000 [ 84.715049][ T4350] worker_thread+0xaa8/0x12a0 [ 84.720254][ T4350] kthread+0x436/0x520 [ 84.724840][ T4350] ret_from_fork+0x1f/0x30 [ 84.729781][ T4350] [ 84.729781][ T4350] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 84.739593][ T4350] __lock_acquire+0x2c33/0x7c60 [ 84.744970][ T4350] lock_acquire+0x197/0x3f0 [ 84.749994][ T4350] __flush_work+0xdd/0x1b0 [ 84.754942][ T4350] __cancel_work_timer+0x3ac/0x520 [ 84.760609][ T4350] hci_request_cancel_all+0xcc/0x300 [ 84.766442][ T4350] hci_dev_do_close+0x4e/0x1030 [ 84.771826][ T4350] hci_rfkill_set_block+0x10a/0x190 [ 84.777547][ T4350] rfkill_set_block+0x1c6/0x420 [ 84.782919][ T4350] rfkill_fop_write+0x458/0x560 [ 84.788287][ T4350] vfs_write+0x300/0xd00 [ 84.793133][ T4350] ksys_write+0x14d/0x250 [ 84.797979][ T4350] do_syscall_64+0x4c/0xa0 [ 84.802919][ T4350] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 84.809360][ T4350] [ 84.809360][ T4350] other info that might help us debug this: [ 84.809360][ T4350] [ 84.819677][ T4350] Chain exists of: [ 84.819677][ T4350] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 84.819677][ T4350] [ 84.835488][ T4350] Possible unsafe locking scenario: [ 84.835488][ T4350] [ 84.842929][ T4350] CPU0 CPU1 [ 84.848291][ T4350] ---- ---- [ 84.853854][ T4350] lock(rfkill_global_mutex); [ 84.858653][ T4350] lock(&data->open_mutex); [ 84.865903][ T4350] lock(rfkill_global_mutex); [ 84.873317][ T4350] lock((work_completion)(&hdev->bg_scan_update)); [ 84.879916][ T4350] [ 84.879916][ T4350] *** DEADLOCK *** [ 84.879916][ T4350] [ 84.888067][ T4350] 1 lock held by syz.0.17/4350: [ 84.892914][ T4350] #0: ffffffff8d4ba7e8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 84.903208][ T4350] [ 84.903208][ T4350] stack backtrace: [ 84.909251][ T4350] CPU: 0 PID: 4350 Comm: syz.0.17 Not tainted syzkaller #0 [ 84.916542][ T4350] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 [ 84.926612][ T4350] Call Trace: [ 84.929894][ T4350] [ 84.932832][ T4350] dump_stack_lvl+0x168/0x230 [ 84.937556][ T4350] ? load_image+0x3b0/0x3b0 [ 84.942107][ T4350] ? show_regs_print_info+0x20/0x20 [ 84.947326][ T4350] ? print_circular_bug+0x12b/0x1a0 [ 84.952557][ T4350] check_noncircular+0x274/0x310 [ 84.957513][ T4350] ? add_chain_block+0x940/0x940 [ 84.962467][ T4350] ? lockdep_lock+0xdc/0x1e0 [ 84.967064][ T4350] ? __lock_acquire+0x12d9/0x7c60 [ 84.972128][ T4350] ? lockdep_lock+0x1e0/0x1e0 [ 84.976817][ T4350] ? mark_lock+0x94/0x320 [ 84.981151][ T4350] ? _find_first_zero_bit+0xce/0xf0 [ 84.986356][ T4350] __lock_acquire+0x2c33/0x7c60 [ 84.991327][ T4350] ? verify_lock_unused+0x140/0x140 [ 84.996716][ T4350] ? verify_lock_unused+0x140/0x140 [ 85.001940][ T4350] lock_acquire+0x197/0x3f0 [ 85.006450][ T4350] ? __flush_work+0xc1/0x1b0 [ 85.011045][ T4350] ? __lock_acquire+0x7c60/0x7c60 [ 85.016075][ T4350] ? read_lock_is_recursive+0x10/0x10 [ 85.021452][ T4350] ? start_flush_work+0x776/0x820 [ 85.026477][ T4350] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 85.032474][ T4350] ? _raw_spin_unlock+0x40/0x40 [ 85.037351][ T4350] __flush_work+0xdd/0x1b0 [ 85.041775][ T4350] ? __flush_work+0xc1/0x1b0 [ 85.046370][ T4350] ? flush_work+0x20/0x20 [ 85.050702][ T4350] ? try_to_grab_pending+0xf3/0x7e0 [ 85.055916][ T4350] ? lockdep_hardirqs_off+0x70/0x100 [ 85.061218][ T4350] ? mark_lock+0x94/0x320 [ 85.065647][ T4350] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 85.071637][ T4350] ? lock_chain_count+0x20/0x20 [ 85.076615][ T4350] ? mark_lock+0x94/0x320 [ 85.080949][ T4350] ? __cancel_work_timer+0x331/0x520 [ 85.086239][ T4350] __cancel_work_timer+0x3ac/0x520 [ 85.091355][ T4350] ? cancel_work_sync+0x20/0x20 [ 85.096240][ T4350] ? __cancel_work+0x1f4/0x2d0 [ 85.101012][ T4350] ? lockdep_hardirqs_on+0x94/0x140 [ 85.106434][ T4350] ? __cancel_work+0x26f/0x2d0 [ 85.111217][ T4350] ? cancel_work+0x20/0x20 [ 85.115918][ T4350] ? lock_chain_count+0x20/0x20 [ 85.120778][ T4350] hci_request_cancel_all+0xcc/0x300 [ 85.126075][ T4350] hci_dev_do_close+0x4e/0x1030 [ 85.131021][ T4350] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 85.136969][ T4350] ? _raw_spin_unlock+0x40/0x40 [ 85.141826][ T4350] hci_rfkill_set_block+0x10a/0x190 [ 85.147041][ T4350] ? rcu_lock_release+0x20/0x20 [ 85.151892][ T4350] rfkill_set_block+0x1c6/0x420 [ 85.156741][ T4350] rfkill_fop_write+0x458/0x560 [ 85.161594][ T4350] ? verify_lock_unused+0x140/0x140 [ 85.166795][ T4350] ? rfkill_fop_read+0x4b0/0x4b0 [ 85.171734][ T4350] ? common_file_perm+0xc0/0x1c0 [ 85.176676][ T4350] ? fsnotify_perm+0x5d/0x560 [ 85.181398][ T4350] ? security_file_permission+0x75/0xa0 [ 85.186948][ T4350] ? rfkill_fop_read+0x4b0/0x4b0 [ 85.191890][ T4350] vfs_write+0x300/0xd00 [ 85.196133][ T4350] ? file_end_write+0x250/0x250 [ 85.200987][ T4350] ? __context_tracking_exit+0x4c/0x80 [ 85.206460][ T4350] ? __lock_acquire+0x7c60/0x7c60 [ 85.211492][ T4350] ? __fdget_pos+0x1e2/0x370 [ 85.216085][ T4350] ksys_write+0x14d/0x250 [ 85.220413][ T4350] ? __ia32_sys_read+0x80/0x80 [ 85.225198][ T4350] ? lockdep_hardirqs_on+0x94/0x140 [ 85.230402][ T4350] do_syscall_64+0x4c/0xa0 [ 85.234821][ T4350] ? clear_bhb_loop+0x30/0x80 [ 85.239501][ T4350] ? clear_bhb_loop+0x30/0x80 [ 85.244182][ T4350] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 85.250084][ T4350] RIP: 0033:0x7f87a9fa9749 [ 85.254516][ T4350] 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 [ 85.274146][ T4350] RSP: 002b:00007ffe1bbaf068 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 85.282565][ T4350] RAX: ffffffffffffffda RBX: 00007f87aa1fffa0 RCX: 00007f87a9fa9749 [ 85.290559][ T4350] RDX: 0000000000000008 RSI: 0000200000000000 RDI: 0000000000000003 [ 85.298551][ T4350] RBP: 00007f87aa02df91 R08: 0000000000000000 R09: 0000000000000000 [ 85.306535][ T4350] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 85.314519][ T4350] R13: 00007f87aa1fffa0 R14: 00007f87aa1fffa0 R15: 0000000000000003 [ 85.322594][ T4350] [ 85.327724][ T1324] Bluetooth: hci0: command 0x040f tx timeout