Warning: Permanently added '10.128.0.41' (ED25519) to the list of known hosts. 2025/07/30 20:32:37 ignoring optional flag "sandboxArg"="0" 2025/07/30 20:32:38 parsed 1 programs [ 54.646175][ T4188] cgroup: Unknown subsys name 'net' [ 54.786174][ T4188] cgroup: Unknown subsys name 'rlimit' [ 55.953697][ T4188] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 57.598300][ T4212] chnl_net:caif_netlink_parms(): no params data found [ 57.635837][ T4212] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.643325][ T4212] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.650892][ T4212] device bridge_slave_0 entered promiscuous mode [ 57.659643][ T4212] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.666822][ T4212] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.674942][ T4212] device bridge_slave_1 entered promiscuous mode [ 57.697354][ T4212] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.707741][ T4212] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.727566][ T4212] team0: Port device team_slave_0 added [ 57.735110][ T4212] team0: Port device team_slave_1 added [ 57.752754][ T4212] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 57.759699][ T4212] 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. [ 57.785738][ T4212] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 57.798108][ T4212] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 57.805277][ T4212] 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. [ 57.831508][ T4212] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 57.869126][ T4212] device hsr_slave_0 entered promiscuous mode [ 57.876335][ T4212] device hsr_slave_1 entered promiscuous mode [ 58.000368][ T4212] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 58.013329][ T4212] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 58.023902][ T4212] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 58.033432][ T4212] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 58.067907][ T4212] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.075110][ T4212] bridge0: port 2(bridge_slave_1) entered forwarding state [ 58.082882][ T4212] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.089944][ T4212] bridge0: port 1(bridge_slave_0) entered forwarding state [ 58.146823][ T4212] 8021q: adding VLAN 0 to HW filter on device bond0 [ 58.169393][ T1536] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 58.183220][ T1536] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.191656][ T1536] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.199634][ T1536] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 58.212432][ T4212] 8021q: adding VLAN 0 to HW filter on device team0 [ 58.223852][ T1536] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 58.233394][ T1536] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.240436][ T1536] bridge0: port 1(bridge_slave_0) entered forwarding state [ 58.253701][ T504] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 58.262187][ T504] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.269229][ T504] bridge0: port 2(bridge_slave_1) entered forwarding state [ 58.295381][ T504] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 58.305922][ T504] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 58.322810][ T504] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 58.330998][ T504] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 58.341836][ T504] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 58.350855][ T4212] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 58.458398][ T504] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 58.467159][ T504] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 58.480770][ T4212] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 58.501098][ T504] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 58.520704][ T504] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 58.530582][ T504] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 58.538792][ T504] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 58.548905][ T4212] device veth0_vlan entered promiscuous mode [ 58.563858][ T4212] device veth1_vlan entered promiscuous mode [ 58.584471][ T504] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 58.593164][ T504] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 58.606024][ T4212] device veth0_macvtap entered promiscuous mode [ 58.614332][ T504] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 58.623335][ T504] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 58.633964][ T4212] device veth1_macvtap entered promiscuous mode [ 58.644203][ T504] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 58.660896][ T504] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 58.677257][ T4212] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 58.686177][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 58.696010][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 58.707510][ T4212] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 58.716710][ T504] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 58.725417][ T504] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 58.735864][ T4212] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 58.745120][ T4212] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 58.754166][ T4212] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 58.763004][ T4212] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 58.872977][ T4212] syz-executor (4212) used greatest stack depth: 21088 bytes left [ 59.030085][ T144] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 61.686217][ T144] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 63.765541][ T144] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 63.826688][ T144] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 64.374659][ T1536] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 64.383604][ T1536] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 64.404556][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 64.417307][ T154] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 64.427079][ T154] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 64.436329][ T1536] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 64.760041][ T144] device hsr_slave_0 left promiscuous mode [ 64.766877][ T144] device hsr_slave_1 left promiscuous mode [ 64.773941][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 64.781645][ T144] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 64.790091][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 64.798333][ T144] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 64.806224][ T144] device bridge_slave_1 left promiscuous mode [ 64.813259][ T144] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.828345][ T144] device bridge_slave_0 left promiscuous mode [ 64.835706][ T144] bridge0: port 1(bridge_slave_0) entered disabled state 2025/07/30 20:32:50 executed programs: 0 [ 64.855763][ T144] device veth1_macvtap left promiscuous mode [ 64.862129][ T144] device veth0_macvtap left promiscuous mode [ 64.868228][ T144] device veth1_vlan left promiscuous mode [ 64.874454][ T144] device veth0_vlan left promiscuous mode [ 65.016906][ T144] team0 (unregistering): Port device team_slave_1 removed [ 65.027970][ T144] team0 (unregistering): Port device team_slave_0 removed [ 65.040260][ T144] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 65.055302][ T144] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 65.097382][ T144] bond0 (unregistering): Released all slaves [ 65.276534][ T4312] chnl_net:caif_netlink_parms(): no params data found [ 65.327448][ T4312] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.334647][ T4312] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.342917][ T4312] device bridge_slave_0 entered promiscuous mode [ 65.351036][ T4312] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.358312][ T4312] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.366296][ T4312] device bridge_slave_1 entered promiscuous mode [ 65.389976][ T4312] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 65.405715][ T4312] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 65.440153][ T4312] team0: Port device team_slave_0 added [ 65.447683][ T4312] team0: Port device team_slave_1 added [ 65.468585][ T4312] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 65.475964][ T4312] 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. [ 65.501923][ T4312] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 65.514186][ T4312] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 65.521116][ T4312] 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. [ 65.547044][ T4312] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 65.595993][ T4312] device hsr_slave_0 entered promiscuous mode [ 65.612232][ T4312] device hsr_slave_1 entered promiscuous mode [ 66.120526][ T4312] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 66.145087][ T4312] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 66.154802][ T4312] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 66.175920][ T4312] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 66.297776][ T4312] 8021q: adding VLAN 0 to HW filter on device bond0 [ 66.325609][ T1536] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 66.338876][ T1536] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 66.356321][ T4312] 8021q: adding VLAN 0 to HW filter on device team0 [ 66.368272][ T1536] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 66.377582][ T1536] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 66.387606][ T1536] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.394699][ T1536] bridge0: port 1(bridge_slave_0) entered forwarding state [ 66.418138][ T1536] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 66.427463][ T1536] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 66.437858][ T1536] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 66.448651][ T1536] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.455750][ T1536] bridge0: port 2(bridge_slave_1) entered forwarding state [ 66.465704][ T1536] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 66.475823][ T1536] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 66.493050][ T1536] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 66.504094][ T1536] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 66.512618][ T1536] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 66.521967][ T1536] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 66.530381][ T1536] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 66.552060][ T1536] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 66.560340][ T1536] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 66.585117][ T1536] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 66.595470][ T1536] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 66.607411][ T4312] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 66.788097][ T1536] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 66.800238][ T1536] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 66.813216][ T4312] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 66.844144][ T1536] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 66.861956][ T1536] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 66.895296][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 66.905390][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 66.916966][ T4312] device veth0_vlan entered promiscuous mode [ 66.931465][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 66.952114][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 66.964002][ T4312] device veth1_vlan entered promiscuous mode [ 66.972442][ T4266] Bluetooth: hci0: command 0x0409 tx timeout [ 67.004315][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 67.018010][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 67.027101][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 67.039477][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 67.050017][ T4312] device veth0_macvtap entered promiscuous mode [ 67.063861][ T4312] device veth1_macvtap entered promiscuous mode [ 67.080829][ T4312] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 67.089804][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 67.097959][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 67.108308][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 67.117826][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 67.129538][ T4312] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 67.138481][ T1536] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 67.148254][ T1536] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 67.163117][ T4312] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.178529][ T4312] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.187778][ T4312] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.197900][ T4312] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.423421][ T1536] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 67.440644][ T1536] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 67.448759][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 67.455394][ T1536] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 67.464304][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 67.474838][ T504] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 67.594277][ T4427] [ 67.596643][ T4427] ====================================================== [ 67.603649][ T4427] WARNING: possible circular locking dependency detected [ 67.610663][ T4427] 5.15.189-syzkaller #0 Not tainted [ 67.615849][ T4427] ------------------------------------------------------ [ 67.622876][ T4427] syz.0.16/4427 is trying to acquire lock: [ 67.628671][ T4427] ffff888022010c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xc1/0x1b0 [ 67.639719][ T4427] [ 67.639719][ T4427] but task is already holding lock: [ 67.647073][ T4427] ffffffff8d4be228 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 67.656725][ T4427] [ 67.656725][ T4427] which lock already depends on the new lock. [ 67.656725][ T4427] [ 67.667112][ T4427] [ 67.667112][ T4427] the existing dependency chain (in reverse order) is: [ 67.676110][ T4427] [ 67.676110][ T4427] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 67.684093][ T4427] __mutex_lock_common+0x1eb/0x2390 [ 67.689811][ T4427] mutex_lock_nested+0x17/0x20 [ 67.695090][ T4427] rfkill_register+0x33/0x8a0 [ 67.700284][ T4427] hci_register_dev+0x452/0x970 [ 67.705664][ T4427] vhci_create_device+0x32c/0x5c0 [ 67.711213][ T4427] vhci_write+0x391/0x450 [ 67.716059][ T4427] vfs_write+0x712/0xd00 [ 67.720823][ T4427] ksys_write+0x14d/0x250 [ 67.725667][ T4427] do_syscall_64+0x4c/0xa0 [ 67.730600][ T4427] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 67.737009][ T4427] [ 67.737009][ T4427] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 67.744824][ T4427] __mutex_lock_common+0x1eb/0x2390 [ 67.750550][ T4427] mutex_lock_nested+0x17/0x20 [ 67.755830][ T4427] vhci_send_frame+0x88/0x100 [ 67.761027][ T4427] hci_send_frame+0x1a9/0x2e0 [ 67.766221][ T4427] hci_tx_work+0x9f9/0x1710 [ 67.771298][ T4427] process_one_work+0x863/0x1000 [ 67.776756][ T4427] worker_thread+0xaa8/0x12a0 [ 67.781953][ T4427] kthread+0x436/0x520 [ 67.786539][ T4427] ret_from_fork+0x1f/0x30 [ 67.791473][ T4427] [ 67.791473][ T4427] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 67.800670][ T4427] __flush_work+0xdd/0x1b0 [ 67.805600][ T4427] hci_dev_do_close+0x1e7/0x1030 [ 67.811060][ T4427] hci_unregister_dev+0x2d7/0x580 [ 67.816617][ T4427] vhci_release+0x73/0xc0 [ 67.821461][ T4427] __fput+0x234/0x930 [ 67.825958][ T4427] task_work_run+0x125/0x1a0 [ 67.831080][ T4427] do_exit+0x61e/0x20a0 [ 67.835751][ T4427] do_group_exit+0x12e/0x300 [ 67.840860][ T4427] get_signal+0x6ca/0x12c0 [ 67.845796][ T4427] arch_do_signal_or_restart+0xc1/0x1300 [ 67.851979][ T4427] exit_to_user_mode_loop+0x9e/0x130 [ 67.857779][ T4427] exit_to_user_mode_prepare+0xb1/0x140 [ 67.863840][ T4427] syscall_exit_to_user_mode+0x16/0x40 [ 67.869812][ T4427] do_syscall_64+0x58/0xa0 [ 67.874756][ T4427] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 67.881174][ T4427] [ 67.881174][ T4427] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 67.888812][ T4427] __mutex_lock_common+0x1eb/0x2390 [ 67.894529][ T4427] mutex_lock_nested+0x17/0x20 [ 67.899816][ T4427] bg_scan_update+0x44/0x3b0 [ 67.904920][ T4427] process_one_work+0x863/0x1000 [ 67.910381][ T4427] worker_thread+0xaa8/0x12a0 [ 67.915570][ T4427] kthread+0x436/0x520 [ 67.920158][ T4427] ret_from_fork+0x1f/0x30 [ 67.925093][ T4427] [ 67.925093][ T4427] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 67.934898][ T4427] __lock_acquire+0x2c33/0x7c60 [ 67.940275][ T4427] lock_acquire+0x197/0x3f0 [ 67.945310][ T4427] __flush_work+0xdd/0x1b0 [ 67.950241][ T4427] __cancel_work_timer+0x3ac/0x520 [ 67.955865][ T4427] hci_request_cancel_all+0xcc/0x300 [ 67.961668][ T4427] hci_dev_do_close+0x4e/0x1030 [ 67.967036][ T4427] hci_rfkill_set_block+0x10a/0x190 [ 67.972747][ T4427] rfkill_set_block+0x1c6/0x420 [ 67.978123][ T4427] rfkill_fop_write+0x458/0x560 [ 67.983490][ T4427] vfs_write+0x300/0xd00 [ 67.988246][ T4427] ksys_write+0x14d/0x250 [ 67.993096][ T4427] do_syscall_64+0x4c/0xa0 [ 67.998030][ T4427] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 68.004439][ T4427] [ 68.004439][ T4427] other info that might help us debug this: [ 68.004439][ T4427] [ 68.014653][ T4427] Chain exists of: [ 68.014653][ T4427] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 68.014653][ T4427] [ 68.030368][ T4427] Possible unsafe locking scenario: [ 68.030368][ T4427] [ 68.037804][ T4427] CPU0 CPU1 [ 68.043167][ T4427] ---- ---- [ 68.048520][ T4427] lock(rfkill_global_mutex); [ 68.053279][ T4427] lock(&data->open_mutex); [ 68.060385][ T4427] lock(rfkill_global_mutex); [ 68.067675][ T4427] lock((work_completion)(&hdev->bg_scan_update)); [ 68.074257][ T4427] [ 68.074257][ T4427] *** DEADLOCK *** [ 68.074257][ T4427] [ 68.082402][ T4427] 1 lock held by syz.0.16/4427: [ 68.087237][ T4427] #0: ffffffff8d4be228 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 68.097343][ T4427] [ 68.097343][ T4427] stack backtrace: [ 68.103229][ T4427] CPU: 1 PID: 4427 Comm: syz.0.16 Not tainted 5.15.189-syzkaller #0 [ 68.111195][ T4427] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 68.121260][ T4427] Call Trace: [ 68.124535][ T4427] [ 68.127462][ T4427] dump_stack_lvl+0x168/0x230 [ 68.132136][ T4427] ? load_image+0x3b0/0x3b0 [ 68.136685][ T4427] ? show_regs_print_info+0x20/0x20 [ 68.141882][ T4427] ? print_circular_bug+0x12b/0x1a0 [ 68.147079][ T4427] check_noncircular+0x274/0x310 [ 68.152016][ T4427] ? add_chain_block+0x940/0x940 [ 68.156944][ T4427] ? lockdep_lock+0xdc/0x1e0 [ 68.161534][ T4427] ? __lock_acquire+0x12d9/0x7c60 [ 68.166554][ T4427] ? lockdep_lock+0x1e0/0x1e0 [ 68.171247][ T4427] ? mark_lock+0x94/0x320 [ 68.175578][ T4427] __lock_acquire+0x2c33/0x7c60 [ 68.180470][ T4427] ? verify_lock_unused+0x140/0x140 [ 68.185668][ T4427] ? verify_lock_unused+0x140/0x140 [ 68.190882][ T4427] lock_acquire+0x197/0x3f0 [ 68.195378][ T4427] ? __flush_work+0xc1/0x1b0 [ 68.199986][ T4427] ? __lock_acquire+0x7c60/0x7c60 [ 68.205065][ T4427] ? read_lock_is_recursive+0x10/0x10 [ 68.210437][ T4427] ? start_flush_work+0x776/0x820 [ 68.215457][ T4427] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 68.221349][ T4427] ? _raw_spin_unlock+0x40/0x40 [ 68.226198][ T4427] __flush_work+0xdd/0x1b0 [ 68.230616][ T4427] ? __flush_work+0xc1/0x1b0 [ 68.235204][ T4427] ? flush_work+0x20/0x20 [ 68.239528][ T4427] ? try_to_grab_pending+0xf3/0x7e0 [ 68.244719][ T4427] ? lockdep_hardirqs_off+0x70/0x100 [ 68.250001][ T4427] ? mark_lock+0x94/0x320 [ 68.254331][ T4427] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 68.260308][ T4427] ? lock_chain_count+0x20/0x20 [ 68.265156][ T4427] ? mark_lock+0x94/0x320 [ 68.269485][ T4427] ? __cancel_work_timer+0x331/0x520 [ 68.274765][ T4427] __cancel_work_timer+0x3ac/0x520 [ 68.279889][ T4427] ? cancel_work_sync+0x20/0x20 [ 68.284733][ T4427] ? __cancel_work+0x1f4/0x2d0 [ 68.289490][ T4427] ? lockdep_hardirqs_on+0x94/0x140 [ 68.294686][ T4427] ? __cancel_work+0x26f/0x2d0 [ 68.299443][ T4427] ? cancel_work+0x20/0x20 [ 68.303851][ T4427] ? lock_chain_count+0x20/0x20 [ 68.308698][ T4427] hci_request_cancel_all+0xcc/0x300 [ 68.313980][ T4427] hci_dev_do_close+0x4e/0x1030 [ 68.318828][ T4427] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 68.324718][ T4427] ? _raw_spin_unlock+0x40/0x40 [ 68.329567][ T4427] hci_rfkill_set_block+0x10a/0x190 [ 68.334762][ T4427] ? rcu_lock_release+0x20/0x20 [ 68.339613][ T4427] rfkill_set_block+0x1c6/0x420 [ 68.344462][ T4427] rfkill_fop_write+0x458/0x560 [ 68.349308][ T4427] ? verify_lock_unused+0x140/0x140 [ 68.354503][ T4427] ? rfkill_fop_read+0x4b0/0x4b0 [ 68.359435][ T4427] ? common_file_perm+0x150/0x1c0 [ 68.364456][ T4427] ? fsnotify_perm+0x5d/0x560 [ 68.369162][ T4427] ? security_file_permission+0x75/0xa0 [ 68.374702][ T4427] ? rfkill_fop_read+0x4b0/0x4b0 [ 68.379636][ T4427] vfs_write+0x300/0xd00 [ 68.383875][ T4427] ? file_end_write+0x250/0x250 [ 68.388724][ T4427] ? __context_tracking_exit+0x4c/0x80 [ 68.394180][ T4427] ? __lock_acquire+0x7c60/0x7c60 [ 68.399201][ T4427] ? __fdget_pos+0x1e2/0x370 [ 68.403786][ T4427] ksys_write+0x14d/0x250 [ 68.408113][ T4427] ? __ia32_sys_read+0x80/0x80 [ 68.412875][ T4427] ? lockdep_hardirqs_on+0x94/0x140 [ 68.418073][ T4427] do_syscall_64+0x4c/0xa0 [ 68.422484][ T4427] ? clear_bhb_loop+0x30/0x80 [ 68.427155][ T4427] ? clear_bhb_loop+0x30/0x80 [ 68.431828][ T4427] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 68.437770][ T4427] RIP: 0033:0x7ffb1d5bc9a9 [ 68.442177][ T4427] 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 [ 68.461776][ T4427] RSP: 002b:00007ffe5c645538 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 68.470183][ T4427] RAX: ffffffffffffffda RBX: 00007ffb1d7e3fa0 RCX: 00007ffb1d5bc9a9 [ 68.478147][ T4427] RDX: 0000000000000008 RSI: 0000200000000080 RDI: 0000000000000003 [ 68.486119][ T4427] RBP: 00007ffb1d63ed69 R08: 0000000000000000 R09: 0000000000000000 [ 68.494081][ T4427] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 68.502045][ T4427] R13: 00007ffb1d7e3fa0 R14: 00007ffb1d7e3fa0 R15: 0000000000000003 [ 68.510015][ T4427]