Warning: Permanently added '10.128.0.29' (ED25519) to the list of known hosts. 2026/04/25 23:56:10 parsed 1 programs [ 67.600488][ T4188] cgroup: Unknown subsys name 'net' [ 67.739983][ T4188] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 69.289962][ T4188] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 71.227780][ T4216] chnl_net:caif_netlink_parms(): no params data found [ 71.266504][ T1421] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.273229][ T1421] ieee802154 phy1 wpan1: encryption failed: -22 [ 71.288395][ T4216] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.296227][ T4216] bridge0: port 1(bridge_slave_0) entered disabled state [ 71.305009][ T4216] device bridge_slave_0 entered promiscuous mode [ 71.314631][ T4216] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.321887][ T4216] bridge0: port 2(bridge_slave_1) entered disabled state [ 71.330605][ T4216] device bridge_slave_1 entered promiscuous mode [ 71.355698][ T4216] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 71.366724][ T4216] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 71.388537][ T4216] team0: Port device team_slave_0 added [ 71.396902][ T4216] team0: Port device team_slave_1 added [ 71.415820][ T4216] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 71.423214][ T4216] 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. [ 71.449259][ T4216] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 71.462780][ T4216] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 71.471259][ T4216] 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. [ 71.499012][ T4216] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 71.541054][ T4216] device hsr_slave_0 entered promiscuous mode [ 71.548160][ T4216] device hsr_slave_1 entered promiscuous mode [ 71.686782][ T4216] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 71.699790][ T4216] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 71.710525][ T4216] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 71.722080][ T4216] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 71.752703][ T4216] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.759994][ T4216] bridge0: port 2(bridge_slave_1) entered forwarding state [ 71.767804][ T4216] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.774932][ T4216] bridge0: port 1(bridge_slave_0) entered forwarding state [ 71.837924][ T4216] 8021q: adding VLAN 0 to HW filter on device bond0 [ 71.852709][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 71.864355][ T307] bridge0: port 1(bridge_slave_0) entered disabled state [ 71.873100][ T307] bridge0: port 2(bridge_slave_1) entered disabled state [ 71.881647][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 71.898469][ T4216] 8021q: adding VLAN 0 to HW filter on device team0 [ 71.911511][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 71.921533][ T307] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.928658][ T307] bridge0: port 1(bridge_slave_0) entered forwarding state [ 71.954861][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 71.965543][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.972638][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 71.982522][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 72.005411][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 72.015076][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 72.026751][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 72.037146][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 72.047922][ T4216] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 72.169856][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 72.178127][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 72.191062][ T4216] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 72.213419][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 72.235326][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 72.244089][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 72.254659][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 72.262488][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 72.275282][ T4216] device veth0_vlan entered promiscuous mode [ 72.288173][ T4216] device veth1_vlan entered promiscuous mode [ 72.323529][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 72.332172][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 72.343232][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 72.352009][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 72.364220][ T4216] device veth0_macvtap entered promiscuous mode [ 72.375757][ T4216] device veth1_macvtap entered promiscuous mode [ 72.393837][ T4216] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 72.401349][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 72.411369][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 72.420342][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 72.429245][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 72.441594][ T4216] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 72.450574][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 72.459896][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 72.471529][ T4216] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.481955][ T4216] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.491194][ T4216] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.500706][ T4216] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.600603][ T4216] syz-executor (4216) used greatest stack depth: 20848 bytes left [ 73.066032][ T154] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 73.128578][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 73.138664][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 73.151633][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 73.168903][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 73.176892][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 73.186454][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 75.159241][ T154] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 77.438554][ T154] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 77.500434][ T154] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 78.758565][ T154] device hsr_slave_0 left promiscuous mode [ 78.766955][ T154] device hsr_slave_1 left promiscuous mode [ 78.776087][ T154] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 78.786671][ T154] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 78.795721][ T154] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 78.804465][ T154] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 78.812794][ T154] device bridge_slave_1 left promiscuous mode [ 78.821568][ T154] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.839073][ T154] device bridge_slave_0 left promiscuous mode [ 78.846623][ T154] bridge0: port 1(bridge_slave_0) entered disabled state [ 78.871588][ T154] device veth1_macvtap left promiscuous mode [ 78.878040][ T154] device veth0_macvtap left promiscuous mode [ 78.885689][ T154] device veth1_vlan left promiscuous mode [ 78.891650][ T154] device veth0_vlan left promiscuous mode [ 79.077763][ T154] team0 (unregistering): Port device team_slave_1 removed [ 79.090410][ T154] team0 (unregistering): Port device team_slave_0 removed [ 79.104285][ T154] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 79.119277][ T154] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 79.173289][ T154] bond0 (unregistering): Released all slaves 2026/04/25 23:56:25 executed programs: 0 [ 80.406332][ T4362] chnl_net:caif_netlink_parms(): no params data found [ 80.527272][ T4362] bridge0: port 1(bridge_slave_0) entered blocking state [ 80.535739][ T4362] bridge0: port 1(bridge_slave_0) entered disabled state [ 80.543933][ T4362] device bridge_slave_0 entered promiscuous mode [ 80.553212][ T4362] bridge0: port 2(bridge_slave_1) entered blocking state [ 80.561818][ T4362] bridge0: port 2(bridge_slave_1) entered disabled state [ 80.571172][ T4362] device bridge_slave_1 entered promiscuous mode [ 80.598441][ T4362] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 80.610177][ T4362] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 80.642055][ T4362] team0: Port device team_slave_0 added [ 80.649912][ T4362] team0: Port device team_slave_1 added [ 80.684433][ T4362] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 80.691418][ T4362] 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. [ 80.718814][ T4362] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 80.731410][ T4362] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 80.739673][ T4362] 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. [ 80.767663][ T4362] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 80.811657][ T4362] device hsr_slave_0 entered promiscuous mode [ 80.820449][ T4362] device hsr_slave_1 entered promiscuous mode [ 81.598588][ T4362] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 81.800642][ T4362] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 81.865331][ T4362] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 81.906909][ T4362] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 82.105467][ T4362] 8021q: adding VLAN 0 to HW filter on device bond0 [ 82.153977][ T4362] 8021q: adding VLAN 0 to HW filter on device team0 [ 82.171792][ T4328] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 82.180506][ T4328] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 82.224359][ T4328] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 82.249935][ T4328] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 82.259003][ T4328] bridge0: port 1(bridge_slave_0) entered blocking state [ 82.266137][ T4328] bridge0: port 1(bridge_slave_0) entered forwarding state [ 82.275301][ T4328] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 82.284599][ T4328] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 82.293490][ T4328] bridge0: port 2(bridge_slave_1) entered blocking state [ 82.300582][ T4328] bridge0: port 2(bridge_slave_1) entered forwarding state [ 82.307557][ T21] Bluetooth: hci0: command 0x0409 tx timeout [ 82.314003][ T4328] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 82.322876][ T4328] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 82.346049][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 82.355424][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 82.366218][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 82.378490][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 82.388639][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 82.398031][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 82.407860][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 82.420934][ T4362] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 82.434227][ T4362] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 82.442797][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 82.452012][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 82.461249][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 82.580804][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 82.589777][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 82.603723][ T4362] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 82.626573][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 82.636123][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 82.682095][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 82.691637][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 82.701142][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 82.712613][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 82.721030][ T4362] device veth0_vlan entered promiscuous mode [ 82.759673][ T4362] device veth1_vlan entered promiscuous mode [ 82.781883][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 82.794111][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 82.802240][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 82.811918][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 82.822604][ T4362] device veth0_macvtap entered promiscuous mode [ 82.862746][ T4362] device veth1_macvtap entered promiscuous mode [ 82.881451][ T4362] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 82.892019][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 82.901665][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 82.912439][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 82.921936][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 82.963695][ T4362] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 82.973974][ T4362] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 82.982709][ T4362] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 82.994363][ T4362] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 83.004049][ T4362] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 83.015864][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 83.025682][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 83.104482][ T144] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 83.119066][ T144] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 83.139095][ T307] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 83.180091][ T307] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 83.188596][ T307] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 83.197703][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 83.361654][ T4466] [ 83.364035][ T4466] ====================================================== [ 83.371090][ T4466] WARNING: possible circular locking dependency detected [ 83.378137][ T4466] syzkaller #0 Not tainted [ 83.382571][ T4466] ------------------------------------------------------ [ 83.389592][ T4466] syz.0.17/4466 is trying to acquire lock: [ 83.395425][ T4466] ffff888078b54c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 83.406510][ T4466] [ 83.406510][ T4466] but task is already holding lock: [ 83.413883][ T4466] ffffffff8d6c5de8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 83.423572][ T4466] [ 83.423572][ T4466] which lock already depends on the new lock. [ 83.423572][ T4466] [ 83.433985][ T4466] [ 83.433985][ T4466] the existing dependency chain (in reverse order) is: [ 83.443019][ T4466] [ 83.443019][ T4466] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 83.451058][ T4466] __mutex_lock_common+0x1e3/0x2400 [ 83.456816][ T4466] mutex_lock_nested+0x17/0x20 [ 83.462128][ T4466] rfkill_register+0x33/0x980 [ 83.467354][ T4466] hci_register_dev+0x452/0x970 [ 83.472830][ T4466] vhci_create_device+0x32c/0x5c0 [ 83.478404][ T4466] vhci_write+0x391/0x450 [ 83.483280][ T4466] vfs_write+0x745/0xd60 [ 83.488068][ T4466] ksys_write+0x152/0x260 [ 83.492942][ T4466] do_syscall_64+0x4c/0xa0 [ 83.498085][ T4466] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 83.504547][ T4466] [ 83.504547][ T4466] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 83.512392][ T4466] __mutex_lock_common+0x1e3/0x2400 [ 83.518150][ T4466] mutex_lock_nested+0x17/0x20 [ 83.523461][ T4466] vhci_send_frame+0x88/0x100 [ 83.528692][ T4466] hci_send_frame+0x1a9/0x2e0 [ 83.533940][ T4466] hci_tx_work+0x9f9/0x1710 [ 83.538990][ T4466] process_one_work+0x85f/0x1010 [ 83.544475][ T4466] worker_thread+0xaa6/0x1290 [ 83.549791][ T4466] kthread+0x436/0x520 [ 83.554414][ T4466] ret_from_fork+0x1f/0x30 [ 83.559395][ T4466] [ 83.559395][ T4466] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 83.568746][ T4466] __flush_work+0x116/0x210 [ 83.573908][ T4466] hci_dev_do_close+0x1e7/0x1030 [ 83.579404][ T4466] hci_unregister_dev+0x2d7/0x580 [ 83.584984][ T4466] vhci_release+0x73/0xc0 [ 83.589859][ T4466] __fput+0x234/0x930 [ 83.594386][ T4466] task_work_run+0x125/0x1a0 [ 83.599526][ T4466] do_exit+0x626/0x20c0 [ 83.604311][ T4466] do_group_exit+0x12e/0x300 [ 83.609462][ T4466] get_signal+0x6ca/0x12c0 [ 83.614424][ T4466] arch_do_signal_or_restart+0xe7/0x12c0 [ 83.620608][ T4466] exit_to_user_mode_loop+0x9e/0x130 [ 83.626441][ T4466] exit_to_user_mode_prepare+0xee/0x180 [ 83.632530][ T4466] syscall_exit_to_user_mode+0x16/0x40 [ 83.638539][ T4466] do_syscall_64+0x58/0xa0 [ 83.643500][ T4466] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 83.649935][ T4466] [ 83.649935][ T4466] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 83.657605][ T4466] __mutex_lock_common+0x1e3/0x2400 [ 83.663351][ T4466] mutex_lock_nested+0x17/0x20 [ 83.668684][ T4466] bg_scan_update+0x44/0x3b0 [ 83.673820][ T4466] process_one_work+0x85f/0x1010 [ 83.679303][ T4466] worker_thread+0xaa6/0x1290 [ 83.684566][ T4466] kthread+0x436/0x520 [ 83.689176][ T4466] ret_from_fork+0x1f/0x30 [ 83.694148][ T4466] [ 83.694148][ T4466] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 83.703988][ T4466] __lock_acquire+0x2c42/0x7d10 [ 83.709438][ T4466] lock_acquire+0x19e/0x400 [ 83.714489][ T4466] __flush_work+0x116/0x210 [ 83.719554][ T4466] __cancel_work_timer+0x3f4/0x560 [ 83.725228][ T4466] hci_request_cancel_all+0xcc/0x300 [ 83.731069][ T4466] hci_dev_do_close+0x4e/0x1030 [ 83.736481][ T4466] hci_rfkill_set_block+0x10a/0x190 [ 83.742322][ T4466] rfkill_set_block+0x1c9/0x3d0 [ 83.747852][ T4466] rfkill_fop_write+0x452/0x560 [ 83.753244][ T4466] vfs_write+0x30b/0xd60 [ 83.758036][ T4466] ksys_write+0x152/0x260 [ 83.762924][ T4466] do_syscall_64+0x4c/0xa0 [ 83.767887][ T4466] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 83.774325][ T4466] [ 83.774325][ T4466] other info that might help us debug this: [ 83.774325][ T4466] [ 83.784590][ T4466] Chain exists of: [ 83.784590][ T4466] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 83.784590][ T4466] [ 83.800435][ T4466] Possible unsafe locking scenario: [ 83.800435][ T4466] [ 83.807900][ T4466] CPU0 CPU1 [ 83.813278][ T4466] ---- ---- [ 83.818655][ T4466] lock(rfkill_global_mutex); [ 83.823456][ T4466] lock(&data->open_mutex); [ 83.830605][ T4466] lock(rfkill_global_mutex); [ 83.837913][ T4466] lock((work_completion)(&hdev->bg_scan_update)); [ 83.844517][ T4466] [ 83.844517][ T4466] *** DEADLOCK *** [ 83.844517][ T4466] [ 83.852672][ T4466] 1 lock held by syz.0.17/4466: [ 83.857538][ T4466] #0: ffffffff8d6c5de8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 83.867683][ T4466] [ 83.867683][ T4466] stack backtrace: [ 83.873599][ T4466] CPU: 1 PID: 4466 Comm: syz.0.17 Not tainted syzkaller #0 [ 83.880835][ T4466] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 83.890925][ T4466] Call Trace: [ 83.894227][ T4466] [ 83.897183][ T4466] dump_stack_lvl+0x188/0x250 [ 83.901889][ T4466] ? load_image+0x400/0x400 [ 83.906419][ T4466] ? show_regs_print_info+0x20/0x20 [ 83.911651][ T4466] ? print_circular_bug+0x12b/0x1a0 [ 83.916878][ T4466] check_noncircular+0x296/0x330 [ 83.921870][ T4466] ? look_up_lock_class+0x71/0x110 [ 83.927011][ T4466] ? add_chain_block+0x940/0x940 [ 83.931983][ T4466] ? lockdep_lock+0xf1/0x1f0 [ 83.936611][ T4466] ? __lock_acquire+0x12e8/0x7d10 [ 83.941672][ T4466] ? mark_lock+0x94/0x320 [ 83.946052][ T4466] __lock_acquire+0x2c42/0x7d10 [ 83.950946][ T4466] ? verify_lock_unused+0x140/0x140 [ 83.956184][ T4466] ? verify_lock_unused+0x140/0x140 [ 83.961413][ T4466] ? mark_lock+0x94/0x320 [ 83.965777][ T4466] lock_acquire+0x19e/0x400 [ 83.970307][ T4466] ? __flush_work+0xfa/0x210 [ 83.974915][ T4466] ? __lock_acquire+0x7d10/0x7d10 [ 83.979971][ T4466] ? read_lock_is_recursive+0x10/0x10 [ 83.985377][ T4466] ? start_flush_work+0x776/0x820 [ 83.990425][ T4466] __flush_work+0x116/0x210 [ 83.994958][ T4466] ? __flush_work+0xfa/0x210 [ 83.999844][ T4466] ? flush_work+0x20/0x20 [ 84.004203][ T4466] ? try_to_grab_pending+0xfa/0x7f0 [ 84.009431][ T4466] ? mark_lock+0x94/0x320 [ 84.013792][ T4466] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 84.019798][ T4466] ? lock_chain_count+0x20/0x20 [ 84.024672][ T4466] ? mark_lock+0x94/0x320 [ 84.029035][ T4466] ? __cancel_work_timer+0x36a/0x560 [ 84.034471][ T4466] __cancel_work_timer+0x3f4/0x560 [ 84.039630][ T4466] ? cancel_work_sync+0x20/0x20 [ 84.044506][ T4466] ? __cancel_work+0x1f9/0x2e0 [ 84.049300][ T4466] ? lockdep_hardirqs_on+0x94/0x140 [ 84.054530][ T4466] ? __cancel_work+0x27b/0x2e0 [ 84.059316][ T4466] ? cancel_work+0x20/0x20 [ 84.063751][ T4466] ? lock_chain_count+0x20/0x20 [ 84.068626][ T4466] hci_request_cancel_all+0xcc/0x300 [ 84.073947][ T4466] hci_dev_do_close+0x4e/0x1030 [ 84.078833][ T4466] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 84.084840][ T4466] ? _raw_spin_unlock+0x40/0x40 [ 84.089710][ T4466] hci_rfkill_set_block+0x10a/0x190 [ 84.094950][ T4466] ? rcu_lock_release+0x20/0x20 [ 84.099850][ T4466] rfkill_set_block+0x1c9/0x3d0 [ 84.104736][ T4466] rfkill_fop_write+0x452/0x560 [ 84.109606][ T4466] ? rfkill_fop_read+0x520/0x520 [ 84.114573][ T4466] ? common_file_perm+0x140/0x1c0 [ 84.119629][ T4466] ? fsnotify_perm+0x5d/0x560 [ 84.124339][ T4466] ? security_file_permission+0x75/0xa0 [ 84.129906][ T4466] ? rfkill_fop_read+0x520/0x520 [ 84.134875][ T4466] vfs_write+0x30b/0xd60 [ 84.139162][ T4466] ? file_end_write+0x250/0x250 [ 84.144037][ T4466] ? __context_tracking_exit+0x4c/0x80 [ 84.149528][ T4466] ? __lock_acquire+0x7d10/0x7d10 [ 84.154577][ T4466] ? __fdget_pos+0x1e2/0x370 [ 84.159211][ T4466] ksys_write+0x152/0x260 [ 84.163571][ T4466] ? __ia32_sys_read+0x80/0x80 [ 84.168398][ T4466] ? lockdep_hardirqs_on+0x94/0x140 [ 84.173629][ T4466] do_syscall_64+0x4c/0xa0 [ 84.178076][ T4466] ? clear_bhb_loop+0x30/0x80 [ 84.182793][ T4466] ? clear_bhb_loop+0x30/0x80 [ 84.187498][ T4466] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 84.193416][ T4466] RIP: 0033:0x7fadaba0edd9 [ 84.197866][ T4466] 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 [ 84.217666][ T4466] RSP: 002b:00007ffe28136368 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 84.226097][ T4466] RAX: ffffffffffffffda RBX: 00007fadabc87fa0 RCX: 00007fadaba0edd9 [ 84.234311][ T4466] RDX: 0000000000000008 RSI: 0000200000000040 RDI: 0000000000000003 [ 84.242304][ T4466] RBP: 00007fadabaa4d69 R08: 0000000000000000 R09: 0000000000000000 [ 84.250295][ T4466] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 84.258285][ T4466] R13: 00007fadabc87fac R14: 00007fadabc87fa0 R15: 00007fadabc87fa0 [ 84.266287][ T4466]