Warning: Permanently added '10.128.1.13' (ED25519) to the list of known hosts. 2026/05/25 14:05:02 parsed 1 programs [ 90.184925][ T4204] cgroup: Unknown subsys name 'net' [ 90.335412][ T4204] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 91.730520][ T4204] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 93.685190][ T4225] chnl_net:caif_netlink_parms(): no params data found [ 93.739296][ T4225] bridge0: port 1(bridge_slave_0) entered blocking state [ 93.754731][ T4225] bridge0: port 1(bridge_slave_0) entered disabled state [ 93.767140][ T4225] device bridge_slave_0 entered promiscuous mode [ 93.777917][ T4225] bridge0: port 2(bridge_slave_1) entered blocking state [ 93.788563][ T4225] bridge0: port 2(bridge_slave_1) entered disabled state [ 93.798726][ T4225] device bridge_slave_1 entered promiscuous mode [ 93.839743][ T4225] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 93.857738][ T4225] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 93.891315][ T4225] team0: Port device team_slave_0 added [ 93.901580][ T4225] team0: Port device team_slave_1 added [ 93.935787][ T4225] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 93.946085][ 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. [ 93.987581][ T4225] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 94.007774][ T4225] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 94.020792][ 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. [ 94.061488][ T4225] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 94.108606][ T4225] device hsr_slave_0 entered promiscuous mode [ 94.122176][ T4225] device hsr_slave_1 entered promiscuous mode [ 94.280204][ T4225] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 94.299390][ T4225] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 94.312407][ T4225] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 94.327993][ T4225] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 94.365547][ T4225] bridge0: port 2(bridge_slave_1) entered blocking state [ 94.377624][ T4225] bridge0: port 2(bridge_slave_1) entered forwarding state [ 94.389357][ T4225] bridge0: port 1(bridge_slave_0) entered blocking state [ 94.398804][ T4225] bridge0: port 1(bridge_slave_0) entered forwarding state [ 94.475377][ T4225] 8021q: adding VLAN 0 to HW filter on device bond0 [ 94.495204][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 94.510946][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 94.522390][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 94.533283][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 94.551659][ T4225] 8021q: adding VLAN 0 to HW filter on device team0 [ 94.572009][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 94.587469][ T140] bridge0: port 1(bridge_slave_0) entered blocking state [ 94.598577][ T140] bridge0: port 1(bridge_slave_0) entered forwarding state [ 94.622595][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 94.634943][ T140] bridge0: port 2(bridge_slave_1) entered blocking state [ 94.644462][ T140] bridge0: port 2(bridge_slave_1) entered forwarding state [ 94.675117][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 94.691254][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 94.709605][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 94.737189][ T4225] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 94.757094][ T4225] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 94.771711][ T1171] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 94.784643][ T1171] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 94.798539][ T1171] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 94.810468][ T1171] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 94.822546][ T1171] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 94.947729][ T1171] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 94.961060][ T1171] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 94.981796][ T4225] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 95.006060][ T1171] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 95.021458][ T1171] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 95.048810][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 95.062318][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 95.076451][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 95.088511][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 95.107159][ T4225] device veth0_vlan entered promiscuous mode [ 95.135387][ T4225] device veth1_vlan entered promiscuous mode [ 95.176186][ T4233] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 95.187482][ T4233] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 95.201644][ T4233] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 95.214623][ T4233] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 95.231338][ T4225] device veth0_macvtap entered promiscuous mode [ 95.255244][ T4225] device veth1_macvtap entered promiscuous mode [ 95.278884][ T4225] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 95.292336][ T4233] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 95.303273][ T4233] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 95.316689][ T4233] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 95.334594][ T4233] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 95.358104][ T4225] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 95.369537][ T4233] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 95.382712][ T4233] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 95.397937][ T4225] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 95.416313][ T4225] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 95.429806][ T4225] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 95.449867][ T4225] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 97.162690][ T1171] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 97.176160][ T1171] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 97.203977][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 97.221201][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 97.233476][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 97.245228][ T1171] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 97.452334][ T154] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 97.691561][ T21] cfg80211: failed to load regulatory.db 2026/05/25 14:05:12 executed programs: 0 [ 98.198846][ T4291] chnl_net:caif_netlink_parms(): no params data found [ 98.248815][ T4291] bridge0: port 1(bridge_slave_0) entered blocking state [ 98.261671][ T4291] bridge0: port 1(bridge_slave_0) entered disabled state [ 98.272481][ T4291] device bridge_slave_0 entered promiscuous mode [ 98.287044][ T4291] bridge0: port 2(bridge_slave_1) entered blocking state [ 98.296138][ T4291] bridge0: port 2(bridge_slave_1) entered disabled state [ 98.304902][ T4291] device bridge_slave_1 entered promiscuous mode [ 98.327902][ T4291] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 98.343658][ T4291] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 98.371146][ T4291] team0: Port device team_slave_0 added [ 98.382769][ T4291] team0: Port device team_slave_1 added [ 98.400470][ T4291] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 98.410315][ T4291] 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. [ 98.452866][ T4291] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 98.471248][ T4291] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 98.482267][ T4291] 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. [ 98.541550][ T4291] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 98.590866][ T4291] device hsr_slave_0 entered promiscuous mode [ 98.601401][ T4291] device hsr_slave_1 entered promiscuous mode [ 98.612112][ T4291] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 98.630906][ T4291] Cannot create hsr debugfs directory [ 99.876917][ T154] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 99.925591][ T154] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 99.977277][ T154] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 100.313986][ T4324] Bluetooth: hci0: command 0x0409 tx timeout [ 100.786662][ T4291] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 100.801183][ T4291] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 100.814778][ T4291] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 100.828383][ T4291] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 100.965187][ T4291] 8021q: adding VLAN 0 to HW filter on device bond0 [ 101.031807][ T4233] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 101.043335][ T4233] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 101.056999][ T4291] 8021q: adding VLAN 0 to HW filter on device team0 [ 101.093869][ T1171] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 101.105401][ T1171] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 101.115721][ T1171] bridge0: port 1(bridge_slave_0) entered blocking state [ 101.124820][ T1171] bridge0: port 1(bridge_slave_0) entered forwarding state [ 101.136451][ T1171] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 101.175105][ T1171] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 101.186238][ T1171] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 101.196505][ T1171] bridge0: port 2(bridge_slave_1) entered blocking state [ 101.204148][ T1171] bridge0: port 2(bridge_slave_1) entered forwarding state [ 101.226006][ T4233] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 101.236499][ T4233] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 101.251298][ T1171] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 101.262937][ T1171] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 101.276165][ T1171] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 101.310561][ T1171] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 101.323215][ T1171] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 101.338399][ T4233] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 101.352573][ T4233] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 101.395275][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 101.406770][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 101.423123][ T4291] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 101.535632][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 101.551082][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 101.585133][ T4291] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 101.605074][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 101.617164][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 101.657491][ T4291] device veth0_vlan entered promiscuous mode [ 101.666170][ T4357] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 101.677495][ T4357] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 101.692015][ T4357] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 101.703707][ T4357] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 101.738498][ T4291] device veth1_vlan entered promiscuous mode [ 101.761376][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 101.771946][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 101.783951][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 101.794317][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 101.807283][ T4291] device veth0_macvtap entered promiscuous mode [ 101.820714][ T4291] device veth1_macvtap entered promiscuous mode [ 101.848857][ T4291] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 101.862344][ T4291] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 101.875120][ T4291] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 101.887497][ T4357] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 101.898001][ T4357] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 101.910154][ T4357] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 101.922456][ T4357] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 101.946018][ T4291] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 101.961615][ T4291] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 101.978067][ T4291] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 101.988661][ T4357] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 101.999536][ T4357] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 102.012437][ T4291] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 102.022389][ T4291] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 102.034602][ T4291] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 102.045822][ T4291] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 102.092276][ T154] device hsr_slave_0 left promiscuous mode [ 102.101284][ T154] device hsr_slave_1 left promiscuous mode [ 102.108704][ T154] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 102.120454][ T154] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 102.132481][ T154] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 102.143358][ T154] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 102.154168][ T154] device bridge_slave_1 left promiscuous mode [ 102.163215][ T154] bridge0: port 2(bridge_slave_1) entered disabled state [ 102.179988][ T154] device bridge_slave_0 left promiscuous mode [ 102.187699][ T154] bridge0: port 1(bridge_slave_0) entered disabled state [ 102.208042][ T154] device veth1_macvtap left promiscuous mode [ 102.216882][ T154] device veth0_macvtap left promiscuous mode [ 102.225798][ T154] device veth1_vlan left promiscuous mode [ 102.233745][ T154] device veth0_vlan left promiscuous mode [ 102.409889][ T4301] Bluetooth: hci0: command 0x041b tx timeout [ 102.423025][ T154] team0 (unregistering): Port device team_slave_1 removed [ 102.442844][ T154] team0 (unregistering): Port device team_slave_0 removed [ 102.464252][ T154] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 102.483257][ T154] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 102.543233][ T154] bond0 (unregistering): Released all slaves [ 102.642818][ T4357] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 102.653362][ T4357] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 102.662649][ T4357] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 102.699035][ T140] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 102.709110][ T140] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 102.718183][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 102.833451][ T4362] [ 102.836715][ T4362] ====================================================== [ 102.845794][ T4362] WARNING: possible circular locking dependency detected [ 102.855078][ T4362] syzkaller #0 Not tainted [ 102.861151][ T4362] ------------------------------------------------------ [ 102.869148][ T4362] syz.0.17/4362 is trying to acquire lock: [ 102.879443][ T4362] ffff888028d40c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 102.893671][ T4362] [ 102.893671][ T4362] but task is already holding lock: [ 102.902882][ T4362] ffffffff8d6c65a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 102.915667][ T4362] [ 102.915667][ T4362] which lock already depends on the new lock. [ 102.915667][ T4362] [ 102.928708][ T4362] [ 102.928708][ T4362] the existing dependency chain (in reverse order) is: [ 102.940720][ T4362] [ 102.940720][ T4362] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 102.950596][ T4362] __mutex_lock_common+0x1e3/0x2400 [ 102.958236][ T4362] mutex_lock_nested+0x17/0x20 [ 102.964539][ T4362] rfkill_register+0x33/0x980 [ 102.972070][ T4362] hci_register_dev+0x452/0x970 [ 102.978939][ T4362] vhci_create_device+0x32c/0x5c0 [ 102.984959][ T4362] vhci_write+0x391/0x450 [ 102.991539][ T4362] vfs_write+0x745/0xd60 [ 103.000016][ T4362] ksys_write+0x152/0x260 [ 103.008045][ T4362] do_syscall_64+0x4c/0xa0 [ 103.016122][ T4362] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 103.023829][ T4362] [ 103.023829][ T4362] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 103.032633][ T4362] __mutex_lock_common+0x1e3/0x2400 [ 103.040052][ T4362] mutex_lock_nested+0x17/0x20 [ 103.046807][ T4362] vhci_send_frame+0x88/0x100 [ 103.054184][ T4362] hci_send_frame+0x1a9/0x2e0 [ 103.061234][ T4362] hci_tx_work+0x9f9/0x1710 [ 103.068040][ T4362] process_one_work+0x85f/0x1010 [ 103.075469][ T4362] worker_thread+0xaa6/0x1290 [ 103.082931][ T4362] kthread+0x436/0x520 [ 103.088586][ T4362] ret_from_fork+0x1f/0x30 [ 103.094143][ T4362] [ 103.094143][ T4362] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 103.109056][ T4362] __flush_work+0x116/0x210 [ 103.117622][ T4362] hci_dev_do_close+0x1e7/0x1030 [ 103.124244][ T4362] hci_unregister_dev+0x2d7/0x580 [ 103.132499][ T4362] vhci_release+0x73/0xc0 [ 103.140110][ T4362] __fput+0x234/0x930 [ 103.145524][ T4362] task_work_run+0x125/0x1a0 [ 103.151996][ T4362] do_exit+0x626/0x20c0 [ 103.157599][ T4362] do_group_exit+0x12e/0x300 [ 103.163954][ T4362] get_signal+0x6d6/0x12d0 [ 103.170255][ T4362] arch_do_signal_or_restart+0xe7/0x12c0 [ 103.178788][ T4362] exit_to_user_mode_loop+0x9e/0x130 [ 103.185234][ T4362] exit_to_user_mode_prepare+0xee/0x180 [ 103.193035][ T4362] syscall_exit_to_user_mode+0x16/0x40 [ 103.200223][ T4362] do_syscall_64+0x58/0xa0 [ 103.210371][ T4362] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 103.218942][ T4362] [ 103.218942][ T4362] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 103.229125][ T4362] __mutex_lock_common+0x1e3/0x2400 [ 103.236765][ T4362] mutex_lock_nested+0x17/0x20 [ 103.243506][ T4362] bg_scan_update+0x44/0x3b0 [ 103.249309][ T4362] process_one_work+0x85f/0x1010 [ 103.255419][ T4362] worker_thread+0xaa6/0x1290 [ 103.262039][ T4362] kthread+0x436/0x520 [ 103.269575][ T4362] ret_from_fork+0x1f/0x30 [ 103.275549][ T4362] [ 103.275549][ T4362] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 103.286900][ T4362] __lock_acquire+0x2c42/0x7d10 [ 103.294913][ T4362] lock_acquire+0x19e/0x400 [ 103.301038][ T4362] __flush_work+0x116/0x210 [ 103.306708][ T4362] __cancel_work_timer+0x3f4/0x560 [ 103.314223][ T4362] hci_request_cancel_all+0xcc/0x300 [ 103.320802][ T4362] hci_dev_do_close+0x4e/0x1030 [ 103.327545][ T4362] hci_rfkill_set_block+0x10a/0x190 [ 103.334164][ T4362] rfkill_set_block+0x1c9/0x3d0 [ 103.341955][ T4362] rfkill_fop_write+0x452/0x560 [ 103.348552][ T4362] vfs_write+0x30b/0xd60 [ 103.354535][ T4362] ksys_write+0x152/0x260 [ 103.360350][ T4362] do_syscall_64+0x4c/0xa0 [ 103.367216][ T4362] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 103.376674][ T4362] [ 103.376674][ T4362] other info that might help us debug this: [ 103.376674][ T4362] [ 103.388795][ T4362] Chain exists of: [ 103.388795][ T4362] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 103.388795][ T4362] [ 103.410527][ T4362] Possible unsafe locking scenario: [ 103.410527][ T4362] [ 103.421062][ T4362] CPU0 CPU1 [ 103.427056][ T4362] ---- ---- [ 103.434444][ T4362] lock(rfkill_global_mutex); [ 103.440896][ T4362] lock(&data->open_mutex); [ 103.450805][ T4362] lock(rfkill_global_mutex); [ 103.459163][ T4362] lock((work_completion)(&hdev->bg_scan_update)); [ 103.467391][ T4362] [ 103.467391][ T4362] *** DEADLOCK *** [ 103.467391][ T4362] [ 103.477465][ T4362] 1 lock held by syz.0.17/4362: [ 103.483575][ T4362] #0: ffffffff8d6c65a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 103.498435][ T4362] [ 103.498435][ T4362] stack backtrace: [ 103.505236][ T4362] CPU: 0 PID: 4362 Comm: syz.0.17 Not tainted syzkaller #0 [ 103.515056][ T4362] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 103.527696][ T4362] Call Trace: [ 103.531103][ T4362] [ 103.534323][ T4362] dump_stack_lvl+0x188/0x250 [ 103.540489][ T4362] ? load_image+0x400/0x400 [ 103.545506][ T4362] ? show_regs_print_info+0x20/0x20 [ 103.551184][ T4362] ? print_circular_bug+0x12b/0x1a0 [ 103.557871][ T4362] check_noncircular+0x296/0x330 [ 103.563069][ T4362] ? look_up_lock_class+0x71/0x110 [ 103.569219][ T4362] ? add_chain_block+0x940/0x940 [ 103.575673][ T4362] ? lockdep_lock+0xf1/0x1f0 [ 103.582500][ T4362] ? __lock_acquire+0x12e8/0x7d10 [ 103.587914][ T4362] ? mark_lock+0x94/0x320 [ 103.592694][ T4362] ? _find_first_zero_bit+0xce/0xf0 [ 103.598833][ T4362] __lock_acquire+0x2c42/0x7d10 [ 103.604254][ T4362] ? verify_lock_unused+0x140/0x140 [ 103.611593][ T4362] ? verify_lock_unused+0x140/0x140 [ 103.618535][ T4362] ? mark_lock+0x94/0x320 [ 103.624307][ T4362] lock_acquire+0x19e/0x400 [ 103.630760][ T4362] ? __flush_work+0xfa/0x210 [ 103.637659][ T4362] ? __lock_acquire+0x7d10/0x7d10 [ 103.644338][ T4362] ? read_lock_is_recursive+0x10/0x10 [ 103.651139][ T4362] ? start_flush_work+0x776/0x820 [ 103.657147][ T4362] __flush_work+0x116/0x210 [ 103.663037][ T4362] ? __flush_work+0xfa/0x210 [ 103.668361][ T4362] ? flush_work+0x20/0x20 [ 103.673393][ T4362] ? try_to_grab_pending+0xfa/0x7f0 [ 103.680159][ T4362] ? mark_lock+0x94/0x320 [ 103.686054][ T4362] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 103.693799][ T4362] ? lock_chain_count+0x20/0x20 [ 103.700071][ T4362] ? mark_lock+0x94/0x320 [ 103.705928][ T4362] ? __cancel_work_timer+0x36a/0x560 [ 103.713155][ T4362] __cancel_work_timer+0x3f4/0x560 [ 103.720288][ T4362] ? cancel_work_sync+0x20/0x20 [ 103.727305][ T4362] ? __cancel_work+0x1f9/0x2e0 [ 103.732649][ T4362] ? lockdep_hardirqs_on+0x94/0x140 [ 103.739865][ T4362] ? __cancel_work+0x27b/0x2e0 [ 103.745212][ T4362] ? cancel_work+0x20/0x20 [ 103.751331][ T4362] ? lock_chain_count+0x20/0x20 [ 103.757007][ T4362] hci_request_cancel_all+0xcc/0x300 [ 103.763424][ T4362] hci_dev_do_close+0x4e/0x1030 [ 103.770605][ T4362] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 103.778473][ T4362] ? _raw_spin_unlock+0x40/0x40 [ 103.784748][ T4362] hci_rfkill_set_block+0x10a/0x190 [ 103.793019][ T4362] ? rcu_lock_release+0x20/0x20 [ 103.799351][ T4362] rfkill_set_block+0x1c9/0x3d0 [ 103.806035][ T4362] rfkill_fop_write+0x452/0x560 [ 103.812183][ T4362] ? rfkill_fop_read+0x520/0x520 [ 103.817416][ T4362] ? common_file_perm+0xc0/0x1c0 [ 103.822929][ T4362] ? fsnotify_perm+0x5d/0x560 [ 103.828914][ T4362] ? security_file_permission+0x75/0xa0 [ 103.835963][ T4362] ? rfkill_fop_read+0x520/0x520 [ 103.841806][ T4362] vfs_write+0x30b/0xd60 [ 103.846586][ T4362] ? file_end_write+0x250/0x250 [ 103.852330][ T4362] ? __context_tracking_exit+0x4c/0x80 [ 103.859823][ T4362] ? __lock_acquire+0x7d10/0x7d10 [ 103.865523][ T4362] ? __fdget_pos+0x1e2/0x370 [ 103.870336][ T4362] ksys_write+0x152/0x260 [ 103.876179][ T4362] ? __ia32_sys_read+0x80/0x80 [ 103.882485][ T4362] ? lockdep_hardirqs_on+0x94/0x140 [ 103.889088][ T4362] do_syscall_64+0x4c/0xa0 [ 103.895237][ T4362] ? clear_bhb_loop+0x30/0x80 [ 103.902992][ T4362] ? clear_bhb_loop+0x30/0x80 [ 103.910140][ T4362] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 103.917974][ T4362] RIP: 0033:0x7f347eb88e59 [ 103.923436][ T4362] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 [ 103.948287][ T4362] RSP: 002b:00007ffce77b60b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 103.959601][ T4362] RAX: ffffffffffffffda RBX: 00007f347ee01fa0 RCX: 00007f347eb88e59 [ 103.970844][ T4362] RDX: 0000000000000008 RSI: 0000200000000080 RDI: 0000000000000003 [ 103.983601][ T4362] RBP: 00007f347ec1ed6f R08: 0000000000000000 R09: 0000000000000000 [ 103.999950][ T4362] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 104.015225][ T4362] R13: 00007f347ee01fac R14: 00007f347ee01fa0 R15: 00007f347ee01fa0 [ 104.025766][ T4362]