Warning: Permanently added '10.128.0.125' (ED25519) to the list of known hosts. 2025/12/31 12:12:22 parsed 1 programs [ 69.624720][ T4186] cgroup: Unknown subsys name 'net' [ 69.771612][ T4186] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 71.279741][ T4186] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 71.396774][ T1422] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.403334][ T1422] ieee802154 phy1 wpan1: encryption failed: -22 [ 73.213395][ T4206] chnl_net:caif_netlink_parms(): no params data found [ 73.266626][ T4206] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.274289][ T4206] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.282235][ T4206] device bridge_slave_0 entered promiscuous mode [ 73.295421][ T4206] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.302551][ T4206] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.310683][ T4206] device bridge_slave_1 entered promiscuous mode [ 73.333579][ T4206] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 73.345018][ T4206] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 73.370827][ T4206] team0: Port device team_slave_0 added [ 73.378689][ T4206] team0: Port device team_slave_1 added [ 73.398140][ T4206] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 73.405267][ T4206] 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. [ 73.431336][ T4206] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 73.447460][ T4206] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 73.454549][ T4206] 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. [ 73.480824][ T4206] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 73.515902][ T4206] device hsr_slave_0 entered promiscuous mode [ 73.523146][ T4206] device hsr_slave_1 entered promiscuous mode [ 73.627813][ T4206] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 73.640463][ T4206] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 73.651256][ T4206] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 73.661310][ T4206] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 73.698012][ T4206] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.705422][ T4206] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.713531][ T4206] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.720753][ T4206] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.790227][ T4206] 8021q: adding VLAN 0 to HW filter on device bond0 [ 73.807852][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 73.819680][ T155] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.829067][ T155] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.838707][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 73.855518][ T4206] 8021q: adding VLAN 0 to HW filter on device team0 [ 73.869738][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 73.879158][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.886296][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.908537][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 73.925116][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.932331][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.956615][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 73.965904][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 73.976090][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 73.989460][ T4206] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 74.001735][ T4206] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 74.011679][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 74.022287][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 74.151356][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 74.161493][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 74.177762][ T4206] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 74.203754][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 74.216375][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 74.237929][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 74.249764][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 74.261346][ T4206] device veth0_vlan entered promiscuous mode [ 74.270278][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 74.279594][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 74.296348][ T4206] device veth1_vlan entered promiscuous mode [ 74.320530][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 74.329169][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 74.339560][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 74.348725][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 74.361840][ T4206] device veth0_macvtap entered promiscuous mode [ 74.373163][ T4206] device veth1_macvtap entered promiscuous mode [ 74.391653][ T4206] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 74.402357][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 74.411696][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 74.421487][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 74.430660][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 74.442242][ T4206] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 74.450316][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 74.459691][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 74.472755][ T4206] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.482453][ T4206] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.491902][ T4206] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.501217][ T4206] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.859373][ T144] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.874395][ T144] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.883724][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 74.910530][ T155] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.920907][ T155] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.932696][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 75.399702][ T154] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 77.830581][ T154] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 79.560345][ T154] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 79.612324][ T154] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 2025/12/31 12:12:36 executed programs: 0 [ 80.991067][ T4324] chnl_net:caif_netlink_parms(): no params data found [ 81.111846][ T4324] bridge0: port 1(bridge_slave_0) entered blocking state [ 81.119675][ T4324] bridge0: port 1(bridge_slave_0) entered disabled state [ 81.128267][ T4324] device bridge_slave_0 entered promiscuous mode [ 81.142209][ T4324] bridge0: port 2(bridge_slave_1) entered blocking state [ 81.150250][ T4324] bridge0: port 2(bridge_slave_1) entered disabled state [ 81.158879][ T4324] device bridge_slave_1 entered promiscuous mode [ 81.193488][ T154] device hsr_slave_0 left promiscuous mode [ 81.203400][ T154] device hsr_slave_1 left promiscuous mode [ 81.210702][ T154] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 81.220780][ T154] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 81.230114][ T154] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 81.237937][ T154] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 81.245814][ T154] device bridge_slave_1 left promiscuous mode [ 81.252719][ T154] bridge0: port 2(bridge_slave_1) entered disabled state [ 81.267779][ T154] device bridge_slave_0 left promiscuous mode [ 81.274074][ T154] bridge0: port 1(bridge_slave_0) entered disabled state [ 81.293018][ T154] device veth1_macvtap left promiscuous mode [ 81.299417][ T154] device veth0_macvtap left promiscuous mode [ 81.306288][ T154] device veth1_vlan left promiscuous mode [ 81.312248][ T154] device veth0_vlan left promiscuous mode [ 81.477422][ T154] team0 (unregistering): Port device team_slave_1 removed [ 81.491564][ T154] team0 (unregistering): Port device team_slave_0 removed [ 81.508445][ T154] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 81.522839][ T154] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 81.583527][ T154] bond0 (unregistering): Released all slaves [ 81.632678][ T4324] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 81.662938][ T4324] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 81.759894][ T4324] team0: Port device team_slave_0 added [ 81.778186][ T4324] team0: Port device team_slave_1 added [ 81.837730][ T4324] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 81.846886][ T4324] 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. [ 81.873599][ T4324] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 81.887366][ T4324] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 81.897694][ T4324] 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. [ 81.926655][ T4324] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 82.147874][ T4324] device hsr_slave_0 entered promiscuous mode [ 82.164941][ T4324] device hsr_slave_1 entered promiscuous mode [ 82.834739][ T7] Bluetooth: hci0: command 0x0409 tx timeout [ 82.872872][ T4324] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 82.883859][ T4324] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 82.896835][ T4324] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 82.917679][ T4324] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 82.997354][ T4324] 8021q: adding VLAN 0 to HW filter on device bond0 [ 83.011502][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 83.034703][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 83.046649][ T4324] 8021q: adding VLAN 0 to HW filter on device team0 [ 83.059472][ T4232] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 83.070045][ T4232] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 83.079048][ T4232] bridge0: port 1(bridge_slave_0) entered blocking state [ 83.086170][ T4232] bridge0: port 1(bridge_slave_0) entered forwarding state [ 83.097120][ T4232] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 83.118818][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 83.129793][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 83.140591][ T144] bridge0: port 2(bridge_slave_1) entered blocking state [ 83.147731][ T144] bridge0: port 2(bridge_slave_1) entered forwarding state [ 83.176323][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 83.186584][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 83.206276][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 83.218032][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 83.227306][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 83.238324][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 83.253244][ T4324] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 83.266140][ T4324] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 83.279391][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 83.289510][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 83.298468][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 83.310083][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 83.319212][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 83.335465][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 83.489965][ T1236] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 83.504863][ T1236] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 83.518369][ T4324] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 83.558265][ T1236] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 83.574936][ T1236] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 83.598662][ T1236] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 83.608998][ T1236] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 83.620297][ T4324] device veth0_vlan entered promiscuous mode [ 83.628750][ T1236] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 83.645990][ T1236] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 83.661226][ T4324] device veth1_vlan entered promiscuous mode [ 83.692097][ T1236] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 83.701602][ T1236] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 83.711901][ T1236] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 83.721742][ T1236] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 83.735266][ T4324] device veth0_macvtap entered promiscuous mode [ 83.747245][ T4324] device veth1_macvtap entered promiscuous mode [ 83.769066][ T4324] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 83.776874][ T1236] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 83.787495][ T1236] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 83.796057][ T1236] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 83.816576][ T1236] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 83.849215][ T4324] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 83.862150][ T4324] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 83.872647][ T4324] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 83.882558][ T4324] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 83.894504][ T4324] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 83.915567][ T1236] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 83.935318][ T1236] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 84.050101][ T4232] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 84.067694][ T4232] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 84.086107][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 84.120843][ T144] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 84.143497][ T144] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 84.166355][ T4232] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 84.308483][ T4403] [ 84.310893][ T4403] ====================================================== [ 84.317948][ T4403] WARNING: possible circular locking dependency detected [ 84.325017][ T4403] syzkaller #0 Not tainted [ 84.329454][ T4403] ------------------------------------------------------ [ 84.336499][ T4403] syz.0.17/4403 is trying to acquire lock: [ 84.342322][ T4403] ffff888075120c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xc1/0x1b0 [ 84.353404][ T4403] [ 84.353404][ T4403] but task is already holding lock: [ 84.360776][ T4403] ffffffff8d4ba7e8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 84.370447][ T4403] [ 84.370447][ T4403] which lock already depends on the new lock. [ 84.370447][ T4403] [ 84.380857][ T4403] [ 84.380857][ T4403] the existing dependency chain (in reverse order) is: [ 84.389883][ T4403] [ 84.389883][ T4403] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 84.397886][ T4403] __mutex_lock_common+0x1eb/0x2390 [ 84.403638][ T4403] mutex_lock_nested+0x17/0x20 [ 84.408937][ T4403] rfkill_register+0x33/0x8a0 [ 84.414150][ T4403] hci_register_dev+0x452/0x970 [ 84.419547][ T4403] vhci_create_device+0x32c/0x5c0 [ 84.425110][ T4403] vhci_write+0x391/0x450 [ 84.429985][ T4403] vfs_write+0x712/0xd00 [ 84.434761][ T4403] ksys_write+0x14d/0x250 [ 84.439629][ T4403] do_syscall_64+0x4c/0xa0 [ 84.444579][ T4403] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 84.451025][ T4403] [ 84.451025][ T4403] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 84.458852][ T4403] __mutex_lock_common+0x1eb/0x2390 [ 84.464591][ T4403] mutex_lock_nested+0x17/0x20 [ 84.469890][ T4403] vhci_send_frame+0x88/0x100 [ 84.475117][ T4403] hci_send_frame+0x1a9/0x2e0 [ 84.480335][ T4403] hci_tx_work+0x9f9/0x1710 [ 84.485374][ T4403] process_one_work+0x863/0x1000 [ 84.490845][ T4403] worker_thread+0xaa8/0x12a0 [ 84.496055][ T4403] kthread+0x436/0x520 [ 84.500655][ T4403] ret_from_fork+0x1f/0x30 [ 84.505609][ T4403] [ 84.505609][ T4403] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 84.514827][ T4403] __flush_work+0xdd/0x1b0 [ 84.519774][ T4403] hci_dev_do_close+0x1e7/0x1030 [ 84.525248][ T4403] hci_unregister_dev+0x2d7/0x580 [ 84.530819][ T4403] vhci_release+0x73/0xc0 [ 84.535861][ T4403] __fput+0x234/0x930 [ 84.540381][ T4403] task_work_run+0x125/0x1a0 [ 84.545610][ T4403] do_exit+0x61e/0x20a0 [ 84.550313][ T4403] do_group_exit+0x12e/0x300 [ 84.555446][ T4403] get_signal+0x6ca/0x12c0 [ 84.560431][ T4403] arch_do_signal_or_restart+0xc1/0x1300 [ 84.566603][ T4403] exit_to_user_mode_loop+0x9e/0x130 [ 84.572423][ T4403] exit_to_user_mode_prepare+0xee/0x180 [ 84.578509][ T4403] syscall_exit_to_user_mode+0x16/0x40 [ 84.584503][ T4403] do_syscall_64+0x58/0xa0 [ 84.589452][ T4403] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 84.595891][ T4403] [ 84.595891][ T4403] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 84.603630][ T4403] __mutex_lock_common+0x1eb/0x2390 [ 84.609363][ T4403] mutex_lock_nested+0x17/0x20 [ 84.614659][ T4403] bg_scan_update+0x44/0x3b0 [ 84.619807][ T4403] process_one_work+0x863/0x1000 [ 84.625401][ T4403] worker_thread+0xaa8/0x12a0 [ 84.630619][ T4403] kthread+0x436/0x520 [ 84.635222][ T4403] ret_from_fork+0x1f/0x30 [ 84.640170][ T4403] [ 84.640170][ T4403] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 84.649999][ T4403] __lock_acquire+0x2c33/0x7c60 [ 84.655386][ T4403] lock_acquire+0x197/0x3f0 [ 84.660426][ T4403] __flush_work+0xdd/0x1b0 [ 84.665375][ T4403] __cancel_work_timer+0x3ac/0x520 [ 84.671053][ T4403] hci_request_cancel_all+0xcc/0x300 [ 84.676872][ T4403] hci_dev_do_close+0x4e/0x1030 [ 84.682260][ T4403] hci_rfkill_set_block+0x10a/0x190 [ 84.687990][ T4403] rfkill_set_block+0x1c6/0x420 [ 84.693369][ T4403] rfkill_fop_write+0x458/0x560 [ 84.698769][ T4403] vfs_write+0x300/0xd00 [ 84.703545][ T4403] ksys_write+0x14d/0x250 [ 84.708405][ T4403] do_syscall_64+0x4c/0xa0 [ 84.713373][ T4403] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 84.719801][ T4403] [ 84.719801][ T4403] other info that might help us debug this: [ 84.719801][ T4403] [ 84.730042][ T4403] Chain exists of: [ 84.730042][ T4403] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 84.730042][ T4403] [ 84.745800][ T4403] Possible unsafe locking scenario: [ 84.745800][ T4403] [ 84.753265][ T4403] CPU0 CPU1 [ 84.758644][ T4403] ---- ---- [ 84.764021][ T4403] lock(rfkill_global_mutex); [ 84.768801][ T4403] lock(&data->open_mutex); [ 84.776025][ T4403] lock(rfkill_global_mutex); [ 84.783323][ T4403] lock((work_completion)(&hdev->bg_scan_update)); [ 84.789919][ T4403] [ 84.789919][ T4403] *** DEADLOCK *** [ 84.789919][ T4403] [ 84.798068][ T4403] 1 lock held by syz.0.17/4403: [ 84.802937][ T4403] #0: ffffffff8d4ba7e8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 84.813072][ T4403] [ 84.813072][ T4403] stack backtrace: [ 84.818985][ T4403] CPU: 0 PID: 4403 Comm: syz.0.17 Not tainted syzkaller #0 [ 84.826200][ T4403] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 [ 84.836292][ T4403] Call Trace: [ 84.839591][ T4403] [ 84.842537][ T4403] dump_stack_lvl+0x168/0x230 [ 84.847231][ T4403] ? load_image+0x3b0/0x3b0 [ 84.851752][ T4403] ? show_regs_print_info+0x20/0x20 [ 84.856976][ T4403] ? print_circular_bug+0x12b/0x1a0 [ 84.862194][ T4403] check_noncircular+0x274/0x310 [ 84.867150][ T4403] ? add_chain_block+0x940/0x940 [ 84.872200][ T4403] ? lockdep_lock+0xdc/0x1e0 [ 84.876813][ T4403] ? __lock_acquire+0x12d9/0x7c60 [ 84.881866][ T4403] ? lockdep_lock+0x1e0/0x1e0 [ 84.886572][ T4403] ? mark_lock+0x94/0x320 [ 84.890946][ T4403] __lock_acquire+0x2c33/0x7c60 [ 84.895862][ T4403] ? verify_lock_unused+0x140/0x140 [ 84.901212][ T4403] ? verify_lock_unused+0x140/0x140 [ 84.906462][ T4403] lock_acquire+0x197/0x3f0 [ 84.911037][ T4403] ? __flush_work+0xc1/0x1b0 [ 84.915832][ T4403] ? __lock_acquire+0x7c60/0x7c60 [ 84.920888][ T4403] ? read_lock_is_recursive+0x10/0x10 [ 84.926293][ T4403] ? start_flush_work+0x776/0x820 [ 84.931341][ T4403] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 84.937251][ T4403] ? _raw_spin_unlock+0x40/0x40 [ 84.942353][ T4403] __flush_work+0xdd/0x1b0 [ 84.946792][ T4403] ? __flush_work+0xc1/0x1b0 [ 84.951407][ T4403] ? flush_work+0x20/0x20 [ 84.955754][ T4403] ? try_to_grab_pending+0xf3/0x7e0 [ 84.960981][ T4403] ? lockdep_hardirqs_off+0x70/0x100 [ 84.966302][ T4403] ? mark_lock+0x94/0x320 [ 84.970679][ T4403] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 84.976688][ T4403] ? lock_chain_count+0x20/0x20 [ 84.981568][ T4403] ? mark_lock+0x94/0x320 [ 84.986017][ T4403] ? __cancel_work_timer+0x331/0x520 [ 84.991463][ T4403] __cancel_work_timer+0x3ac/0x520 [ 84.996593][ T4403] ? cancel_work_sync+0x20/0x20 [ 85.001461][ T4403] ? __cancel_work+0x1f4/0x2d0 [ 85.006235][ T4403] ? lockdep_hardirqs_on+0x94/0x140 [ 85.011450][ T4403] ? __cancel_work+0x26f/0x2d0 [ 85.016323][ T4403] ? cancel_work+0x20/0x20 [ 85.020758][ T4403] ? lock_chain_count+0x20/0x20 [ 85.025632][ T4403] hci_request_cancel_all+0xcc/0x300 [ 85.031121][ T4403] hci_dev_do_close+0x4e/0x1030 [ 85.036028][ T4403] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 85.041948][ T4403] ? _raw_spin_unlock+0x40/0x40 [ 85.046824][ T4403] hci_rfkill_set_block+0x10a/0x190 [ 85.052048][ T4403] ? rcu_lock_release+0x20/0x20 [ 85.056912][ T4403] rfkill_set_block+0x1c6/0x420 [ 85.061953][ T4403] rfkill_fop_write+0x458/0x560 [ 85.066833][ T4403] ? verify_lock_unused+0x140/0x140 [ 85.072056][ T4403] ? rfkill_fop_read+0x4b0/0x4b0 [ 85.077025][ T4403] ? common_file_perm+0xc0/0x1c0 [ 85.082013][ T4403] ? fsnotify_perm+0x5d/0x560 [ 85.086711][ T4403] ? security_file_permission+0x75/0xa0 [ 85.092273][ T4403] ? rfkill_fop_read+0x4b0/0x4b0 [ 85.097231][ T4403] vfs_write+0x300/0xd00 [ 85.101494][ T4403] ? file_end_write+0x250/0x250 [ 85.106361][ T4403] ? __context_tracking_exit+0x4c/0x80 [ 85.111855][ T4403] ? __lock_acquire+0x7c60/0x7c60 [ 85.116896][ T4403] ? __fdget_pos+0x1e2/0x370 [ 85.121504][ T4403] ksys_write+0x14d/0x250 [ 85.125853][ T4403] ? __ia32_sys_read+0x80/0x80 [ 85.130634][ T4403] ? lockdep_hardirqs_on+0x94/0x140 [ 85.135850][ T4403] do_syscall_64+0x4c/0xa0 [ 85.140279][ T4403] ? clear_bhb_loop+0x30/0x80 [ 85.144969][ T4403] ? clear_bhb_loop+0x30/0x80 [ 85.149663][ T4403] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 85.155586][ T4403] RIP: 0033:0x7fa184564749 [ 85.160020][ T4403] 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 [ 85.179653][ T4403] RSP: 002b:00007ffe29902b88 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 85.188185][ T4403] RAX: ffffffffffffffda RBX: 00007fa1847bafa0 RCX: 00007fa184564749 [ 85.196175][ T4403] RDX: 0000000000000008 RSI: 0000200000000040 RDI: 0000000000000003 [ 85.204167][ T4403] RBP: 00007fa1845e8f91 R08: 0000000000000000 R09: 0000000000000000 [ 85.212173][ T4403] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 85.220175][ T4403] R13: 00007fa1847bafa0 R14: 00007fa1847bafa0 R15: 0000000000000003 [ 85.228272][ T4403] [ 85.261135][ T4219] Bluetooth: hci0: command 0x041b tx timeout