Warning: Permanently added '10.128.0.116' (ED25519) to the list of known hosts. 2026/08/02 12:51:46 parsed 1 programs 2026/08/02 12:51:46 serving rpc on tcp://38453 [ 68.869829][ T4198] cgroup: Unknown subsys name 'net' [ 68.979537][ T4198] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 70.452555][ T4198] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 71.452009][ T1422] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.458546][ T1422] ieee802154 phy1 wpan1: encryption failed: -22 [ 73.210205][ T4236] chnl_net:caif_netlink_parms(): no params data found [ 73.280175][ T4236] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.288069][ T4236] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.298189][ T4236] device bridge_slave_0 entered promiscuous mode [ 73.308460][ T4236] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.317391][ T4236] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.326052][ T4236] device bridge_slave_1 entered promiscuous mode [ 73.356472][ T4236] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 73.369932][ T4236] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 73.402841][ T4236] team0: Port device team_slave_0 added [ 73.411248][ T4236] team0: Port device team_slave_1 added [ 73.435078][ T4236] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 73.442328][ T4236] 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. [ 73.468664][ T4236] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 73.482316][ T4236] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 73.489588][ T4236] 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. [ 73.516159][ T4236] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 73.558793][ T4236] device hsr_slave_0 entered promiscuous mode [ 73.565896][ T4236] device hsr_slave_1 entered promiscuous mode [ 73.725940][ T4236] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 73.740424][ T4236] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 73.755002][ T4236] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 73.766225][ T4236] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 73.803001][ T4236] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.810323][ T4236] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.818487][ T4236] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.825658][ T4236] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.891733][ T4236] 8021q: adding VLAN 0 to HW filter on device bond0 [ 73.908491][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 73.921823][ T154] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.932188][ T154] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.941395][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 73.957991][ T4236] 8021q: adding VLAN 0 to HW filter on device team0 [ 73.972629][ T4244] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 73.982137][ T4244] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.989299][ T4244] bridge0: port 1(bridge_slave_0) entered forwarding state [ 74.011397][ T4244] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 74.023343][ T4244] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.030494][ T4244] bridge0: port 2(bridge_slave_1) entered forwarding state [ 74.058601][ T4244] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 74.068140][ T4244] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 74.078786][ T4244] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 74.091733][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 74.108722][ T4244] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 74.119357][ T4236] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 74.253004][ T4244] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 74.260839][ T4244] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 74.277861][ T4236] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 74.302496][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 74.311996][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 74.348885][ T4244] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 74.363875][ T4244] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 74.384275][ T4236] device veth0_vlan entered promiscuous mode [ 74.397921][ T4236] device veth1_vlan entered promiscuous mode [ 74.405840][ T4244] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 74.414062][ T4244] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 74.423889][ T4244] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 74.449249][ T4244] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 74.457502][ T4244] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 74.469224][ T4244] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 74.479915][ T4236] device veth0_macvtap entered promiscuous mode [ 74.500045][ T4236] device veth1_macvtap entered promiscuous mode [ 74.522160][ T4236] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 74.529894][ T4244] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 74.538396][ T4244] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 74.546650][ T4244] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 74.559186][ T4244] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 74.572055][ T4236] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 74.581660][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 74.591610][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 74.603431][ T4236] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.612416][ T4236] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.621474][ T4236] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.630332][ T4236] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.260464][ T154] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 75.272179][ T154] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 75.284086][ T4244] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 75.322403][ T4244] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 75.330489][ T4244] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 75.338629][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2026/08/02 12:51:56 executed programs: 0 [ 76.785836][ T4299] chnl_net:caif_netlink_parms(): no params data found [ 76.856168][ T4299] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.863640][ T4299] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.872970][ T4299] device bridge_slave_0 entered promiscuous mode [ 76.882305][ T4299] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.890467][ T4299] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.898628][ T4299] device bridge_slave_1 entered promiscuous mode [ 76.927507][ T4299] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 76.942368][ T4299] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 76.973618][ T4299] team0: Port device team_slave_0 added [ 76.982876][ T4299] team0: Port device team_slave_1 added [ 77.002599][ T4299] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 77.010746][ T4299] 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. [ 77.037930][ T4299] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 77.053200][ T4299] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 77.060318][ T4299] 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. [ 77.088226][ T4299] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 77.125122][ T4299] device hsr_slave_0 entered promiscuous mode [ 77.132296][ T4299] device hsr_slave_1 entered promiscuous mode [ 77.139340][ T4299] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 77.147535][ T4299] Cannot create hsr debugfs directory [ 77.241941][ T4299] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 78.660202][ T21] Bluetooth: hci0: command 0x0409 tx timeout [ 80.016647][ T4299] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 80.075157][ T4299] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 80.129091][ T4299] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 80.257527][ T4299] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 80.286504][ T4299] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 80.295841][ T4299] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 80.305558][ T4299] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 80.382280][ T4299] 8021q: adding VLAN 0 to HW filter on device bond0 [ 80.420551][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 80.428421][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 80.441182][ T4299] 8021q: adding VLAN 0 to HW filter on device team0 [ 80.453499][ T4244] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 80.462744][ T4244] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 80.472657][ T4244] bridge0: port 1(bridge_slave_0) entered blocking state [ 80.479990][ T4244] bridge0: port 1(bridge_slave_0) entered forwarding state [ 80.487903][ T4244] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 80.507538][ T4244] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 80.516656][ T4244] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 80.529034][ T4244] bridge0: port 2(bridge_slave_1) entered blocking state [ 80.536185][ T4244] bridge0: port 2(bridge_slave_1) entered forwarding state [ 80.545022][ T4244] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 80.560673][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 80.573119][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 80.584380][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 80.593286][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 80.622683][ T4310] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 80.631714][ T4310] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 80.645011][ T4310] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 80.653934][ T4310] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 80.683675][ T4310] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 80.692735][ T4310] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 80.704193][ T4299] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 80.729133][ T4258] Bluetooth: hci0: command 0x041b tx timeout [ 80.832964][ T4310] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 80.841437][ T4310] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 80.854275][ T4299] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 80.882722][ T4310] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 80.891916][ T4310] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 80.904806][ T9] device hsr_slave_0 left promiscuous mode [ 80.911526][ T9] device hsr_slave_1 left promiscuous mode [ 80.917953][ T9] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 80.926305][ T9] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 80.936401][ T9] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 80.944212][ T9] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 80.952092][ T9] device bridge_slave_1 left promiscuous mode [ 80.959203][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 80.974055][ T9] device bridge_slave_0 left promiscuous mode [ 80.980416][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 80.998171][ T9] device veth1_macvtap left promiscuous mode [ 81.005147][ T9] device veth0_macvtap left promiscuous mode [ 81.012480][ T9] device veth1_vlan left promiscuous mode [ 81.018448][ T9] device veth0_vlan left promiscuous mode [ 81.206159][ T9] team0 (unregistering): Port device team_slave_1 removed [ 81.223795][ T9] team0 (unregistering): Port device team_slave_0 removed [ 81.237030][ T9] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 81.252305][ T9] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 81.315288][ T9] bond0 (unregistering): Released all slaves [ 81.386066][ T4299] device veth0_vlan entered promiscuous mode [ 81.396239][ T4310] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 81.404940][ T4310] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 81.414469][ T4310] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 81.423132][ T4310] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 81.439161][ T4299] device veth1_vlan entered promiscuous mode [ 81.466933][ T4244] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 81.476618][ T4244] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 81.488650][ T4299] device veth0_macvtap entered promiscuous mode [ 81.501882][ T4299] device veth1_macvtap entered promiscuous mode [ 81.517189][ T4299] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 81.524739][ T4244] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 81.538844][ T4244] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 81.547115][ T4244] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 81.556238][ T4244] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 81.576341][ T4299] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 81.586618][ T4299] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.596159][ T4299] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.606477][ T4299] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.615725][ T4299] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.626572][ T4310] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 81.636734][ T4310] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 81.711595][ T144] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 81.723007][ T144] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 81.731994][ T4244] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 81.756957][ T144] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 81.765255][ T144] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 81.774684][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 81.935062][ T4315] [ 81.937455][ T4315] ====================================================== [ 81.944499][ T4315] WARNING: possible circular locking dependency detected [ 81.951552][ T4315] syzkaller #0 Not tainted [ 81.955990][ T4315] ------------------------------------------------------ [ 81.963024][ T4315] syz.0.17/4315 is trying to acquire lock: [ 81.968849][ T4315] ffff88805ec31028 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 81.979947][ T4315] [ 81.979947][ T4315] but task is already holding lock: [ 81.987335][ T4315] ffffffff8d6d5ea8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x1ae/0x560 [ 81.997036][ T4315] [ 81.997036][ T4315] which lock already depends on the new lock. [ 81.997036][ T4315] [ 82.007460][ T4315] [ 82.007460][ T4315] the existing dependency chain (in reverse order) is: [ 82.016501][ T4315] [ 82.016501][ T4315] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 82.024530][ T4315] __mutex_lock_common+0x1e5/0x2400 [ 82.030285][ T4315] mutex_lock_nested+0x17/0x20 [ 82.035603][ T4315] rfkill_register+0x2f/0x970 [ 82.040854][ T4315] hci_register_dev+0x459/0x980 [ 82.046255][ T4315] vhci_create_device+0x32e/0x5c0 [ 82.051848][ T4315] vhci_write+0x389/0x440 [ 82.056730][ T4315] vfs_write+0x748/0xd70 [ 82.061515][ T4315] ksys_write+0x153/0x260 [ 82.066415][ T4315] do_syscall_64+0x4c/0xa0 [ 82.071375][ T4315] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 82.077820][ T4315] [ 82.077820][ T4315] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 82.085669][ T4315] __mutex_lock_common+0x1e5/0x2400 [ 82.091452][ T4315] mutex_lock_nested+0x17/0x20 [ 82.096793][ T4315] vhci_send_frame+0x88/0x100 [ 82.102024][ T4315] hci_send_frame+0x1a9/0x2e0 [ 82.107258][ T4315] hci_tx_work+0x9b5/0x16d0 [ 82.112313][ T4315] process_one_work+0x867/0xff0 [ 82.117714][ T4315] worker_thread+0xad7/0x12a0 [ 82.122948][ T4315] kthread+0x42e/0x520 [ 82.127570][ T4315] ret_from_fork+0x1f/0x30 [ 82.132657][ T4315] [ 82.132657][ T4315] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 82.141911][ T4315] __flush_work+0x116/0x210 [ 82.146972][ T4315] hci_dev_do_close+0x201/0x1020 [ 82.152463][ T4315] hci_unregister_dev+0x2eb/0x590 [ 82.158049][ T4315] vhci_release+0x73/0xc0 [ 82.162936][ T4315] __fput+0x212/0x8c0 [ 82.167473][ T4315] task_work_run+0x125/0x1a0 [ 82.172617][ T4315] do_exit+0x635/0x2110 [ 82.177331][ T4315] do_group_exit+0x12c/0x2f0 [ 82.182467][ T4315] get_signal+0x7eb/0x12e0 [ 82.187431][ T4315] arch_do_signal_or_restart+0xe6/0x12a0 [ 82.193652][ T4315] exit_to_user_mode_loop+0x9e/0x130 [ 82.199576][ T4315] exit_to_user_mode_prepare+0xee/0x180 [ 82.205715][ T4315] syscall_exit_to_user_mode+0x16/0x40 [ 82.211997][ T4315] do_syscall_64+0x58/0xa0 [ 82.216963][ T4315] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 82.223410][ T4315] [ 82.223410][ T4315] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 82.231090][ T4315] __mutex_lock_common+0x1e5/0x2400 [ 82.236969][ T4315] mutex_lock_nested+0x17/0x20 [ 82.242298][ T4315] bg_scan_update+0x44/0x3b0 [ 82.247470][ T4315] process_one_work+0x867/0xff0 [ 82.252880][ T4315] worker_thread+0xad7/0x12a0 [ 82.258114][ T4315] kthread+0x42e/0x520 [ 82.262829][ T4315] ret_from_fork+0x1f/0x30 [ 82.267802][ T4315] [ 82.267802][ T4315] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 82.277655][ T4315] __lock_acquire+0x2c66/0x7b50 [ 82.283065][ T4315] lock_acquire+0x19e/0x400 [ 82.288125][ T4315] __flush_work+0x116/0x210 [ 82.293187][ T4315] __cancel_work_timer+0x3f4/0x560 [ 82.300555][ T4315] hci_request_cancel_all+0xcc/0x300 [ 82.306400][ T4315] hci_dev_do_close+0x4e/0x1020 [ 82.311802][ T4315] hci_rfkill_set_block+0x101/0x180 [ 82.317645][ T4315] rfkill_set_block+0x1c1/0x3c0 [ 82.323060][ T4315] rfkill_fop_write+0x453/0x560 [ 82.328547][ T4315] vfs_write+0x304/0xd70 [ 82.333345][ T4315] ksys_write+0x153/0x260 [ 82.338227][ T4315] do_syscall_64+0x4c/0xa0 [ 82.343196][ T4315] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 82.349644][ T4315] [ 82.349644][ T4315] other info that might help us debug this: [ 82.349644][ T4315] [ 82.359906][ T4315] Chain exists of: [ 82.359906][ T4315] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 82.359906][ T4315] [ 82.375834][ T4315] Possible unsafe locking scenario: [ 82.375834][ T4315] [ 82.383410][ T4315] CPU0 CPU1 [ 82.388813][ T4315] ---- ---- [ 82.394242][ T4315] lock(rfkill_global_mutex); [ 82.399056][ T4315] lock(&data->open_mutex); [ 82.406221][ T4315] lock(rfkill_global_mutex); [ 82.413544][ T4315] lock((work_completion)(&hdev->bg_scan_update)); [ 82.420164][ T4315] [ 82.420164][ T4315] *** DEADLOCK *** [ 82.420164][ T4315] [ 82.428342][ T4315] 1 lock held by syz.0.17/4315: [ 82.433346][ T4315] #0: ffffffff8d6d5ea8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x1ae/0x560 [ 82.443509][ T4315] [ 82.443509][ T4315] stack backtrace: [ 82.449631][ T4315] CPU: 0 PID: 4315 Comm: syz.0.17 Not tainted syzkaller #0 [ 82.456870][ T4315] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 82.467142][ T4315] Call Trace: [ 82.470494][ T4315] [ 82.473459][ T4315] dump_stack_lvl+0x188/0x250 [ 82.478180][ T4315] ? load_image+0x410/0x410 [ 82.482713][ T4315] ? show_regs_print_info+0x20/0x20 [ 82.487957][ T4315] ? print_circular_bug+0x12b/0x1a0 [ 82.493198][ T4315] check_noncircular+0x296/0x330 [ 82.498192][ T4315] ? look_up_lock_class+0x71/0x110 [ 82.503336][ T4315] ? add_chain_block+0x9b0/0x9b0 [ 82.508307][ T4315] ? lockdep_lock+0xf1/0x1f0 [ 82.512930][ T4315] ? __lock_acquire+0x1305/0x7b50 [ 82.517996][ T4315] ? mark_lock+0x94/0x320 [ 82.522356][ T4315] ? _find_first_zero_bit+0xd1/0xf0 [ 82.527593][ T4315] __lock_acquire+0x2c66/0x7b50 [ 82.532496][ T4315] ? verify_lock_unused+0x140/0x140 [ 82.537734][ T4315] ? verify_lock_unused+0x140/0x140 [ 82.542977][ T4315] lock_acquire+0x19e/0x400 [ 82.547539][ T4315] ? __flush_work+0xfa/0x210 [ 82.552166][ T4315] ? __lock_acquire+0x7b50/0x7b50 [ 82.557229][ T4315] ? read_lock_is_recursive+0x10/0x10 [ 82.562645][ T4315] ? start_flush_work+0x784/0x830 [ 82.567712][ T4315] __flush_work+0x116/0x210 [ 82.572258][ T4315] ? __flush_work+0xfa/0x210 [ 82.576889][ T4315] ? flush_work+0x20/0x20 [ 82.581251][ T4315] ? try_to_grab_pending+0xfb/0x820 [ 82.586484][ T4315] ? mark_lock+0x94/0x320 [ 82.590858][ T4315] ? lockdep_hardirqs_on_prepare+0x448/0x7c0 [ 82.596880][ T4315] ? lock_chain_count+0x20/0x20 [ 82.601890][ T4315] ? mark_lock+0x94/0x320 [ 82.606256][ T4315] ? __cancel_work_timer+0x36a/0x560 [ 82.611666][ T4315] __cancel_work_timer+0x3f4/0x560 [ 82.616827][ T4315] ? cancel_work_sync+0x20/0x20 [ 82.621718][ T4315] ? __cancel_work+0x1f9/0x2e0 [ 82.626517][ T4315] ? lockdep_hardirqs_on+0x94/0x140 [ 82.631753][ T4315] ? __cancel_work+0x27b/0x2e0 [ 82.636561][ T4315] ? cancel_work+0x20/0x20 [ 82.641115][ T4315] hci_request_cancel_all+0xcc/0x300 [ 82.646483][ T4315] hci_dev_do_close+0x4e/0x1020 [ 82.651368][ T4315] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 82.657304][ T4315] ? _raw_spin_unlock+0x40/0x40 [ 82.662188][ T4315] hci_rfkill_set_block+0x101/0x180 [ 82.667422][ T4315] ? rcu_lock_release+0x20/0x20 [ 82.672313][ T4315] rfkill_set_block+0x1c1/0x3c0 [ 82.677285][ T4315] rfkill_fop_write+0x453/0x560 [ 82.682179][ T4315] ? rfkill_fop_read+0x560/0x560 [ 82.687155][ T4315] ? common_file_perm+0x100/0x1c0 [ 82.692309][ T4315] ? fsnotify_perm+0x5d/0x560 [ 82.697016][ T4315] ? security_file_permission+0x75/0xa0 [ 82.702681][ T4315] ? rfkill_fop_read+0x560/0x560 [ 82.707666][ T4315] vfs_write+0x304/0xd70 [ 82.712051][ T4315] ? file_end_write+0x250/0x250 [ 82.716968][ T4315] ? __context_tracking_exit+0x4c/0x80 [ 82.722478][ T4315] ? __fdget_pos+0x1e2/0x370 [ 82.727118][ T4315] ksys_write+0x153/0x260 [ 82.731510][ T4315] ? __ia32_sys_read+0x80/0x80 [ 82.736324][ T4315] ? lockdep_hardirqs_on+0x94/0x140 [ 82.741588][ T4315] do_syscall_64+0x4c/0xa0 [ 82.746122][ T4315] ? clear_bhb_loop+0x30/0x80 [ 82.750825][ T4315] ? clear_bhb_loop+0x30/0x80 [ 82.755554][ T4315] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 82.761499][ T4315] RIP: 0033:0x7fe911f4c019 [ 82.765945][ T4315] 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 [ 82.785579][ T4315] RSP: 002b:00007ffc57b58398 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 82.794037][ T4315] RAX: ffffffffffffffda RBX: 00007fe9121d3fa0 RCX: 00007fe911f4c019 [ 82.802038][ T4315] RDX: 0000000000000008 RSI: 0000200000000080 RDI: 0000000000000003 [ 82.809196][ T21] Bluetooth: hci0: command 0x040f tx timeout [ 82.810036][ T4315] RBP: 00007fe911fe300c R08: 0000000000000000 R09: 0000000000000000 [ 82.824019][ T4315] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 82.832022][ T4315] R13: 00007fe9121d3fac R14: 00007fe9121d3fa0 R15: 00007fe9121d3fa0 [ 82.840478][ T4315]