Warning: Permanently added '10.128.1.129' (ED25519) to the list of known hosts. 2026/09/19 17:06:38 parsed 1 programs 2026/09/19 17:06:38 serving rpc on tcp://41351 [ 68.806547][ T4198] cgroup: Unknown subsys name 'net' [ 68.944304][ T4198] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 70.432326][ T4198] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 71.538968][ T1421] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.545511][ T1421] ieee802154 phy1 wpan1: encryption failed: -22 [ 72.714720][ T154] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 72.726578][ T154] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 72.737131][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 72.764091][ T4244] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 72.772075][ T4244] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 72.780122][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 74.041831][ T410] ODEBUG: Out of memory. ODEBUG disabled [ 74.069012][ T4263] chnl_net:caif_netlink_parms(): no params data found [ 74.193431][ T4263] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.210307][ T4263] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.219000][ T4263] device bridge_slave_0 entered promiscuous mode [ 74.229609][ T4263] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.236812][ T4263] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.245075][ T4263] device bridge_slave_1 entered promiscuous mode [ 74.273768][ T4263] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 74.285133][ T4263] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 74.320909][ T4263] team0: Port device team_slave_0 added [ 74.328805][ T4263] team0: Port device team_slave_1 added [ 74.343790][ T4263] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 74.350824][ T4263] 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. [ 74.376976][ T4263] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 74.389024][ T4263] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 74.396095][ T4263] 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. [ 74.422442][ T4263] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 74.449731][ T4263] device hsr_slave_0 entered promiscuous mode [ 74.456807][ T4263] device hsr_slave_1 entered promiscuous mode [ 74.536730][ T4263] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 74.550632][ T4263] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 74.559473][ T4263] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 74.568363][ T4263] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 74.587804][ T4263] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.595089][ T4263] bridge0: port 2(bridge_slave_1) entered forwarding state [ 74.602872][ T4263] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.609965][ T4263] bridge0: port 1(bridge_slave_0) entered forwarding state [ 74.646934][ T4263] 8021q: adding VLAN 0 to HW filter on device bond0 [ 74.661589][ T4244] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 74.670628][ T4244] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.678639][ T4244] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.686970][ T4244] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 74.700422][ T4263] 8021q: adding VLAN 0 to HW filter on device team0 [ 74.711602][ T4244] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 74.720155][ T4244] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.727247][ T4244] bridge0: port 1(bridge_slave_0) entered forwarding state [ 74.738944][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 74.747836][ T154] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.754994][ T154] bridge0: port 2(bridge_slave_1) entered forwarding state [ 74.785117][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 74.802407][ T4263] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 74.813005][ T4263] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 74.826377][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 74.834405][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 74.843542][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 74.853153][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 74.862120][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 74.950051][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 74.958747][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 74.986970][ T4263] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 75.003302][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 75.034582][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 75.043435][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 75.051731][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 75.062091][ T4263] device veth0_vlan entered promiscuous mode [ 75.074969][ T4263] device veth1_vlan entered promiscuous mode [ 75.108962][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 75.118256][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 75.130520][ T4263] device veth0_macvtap entered promiscuous mode [ 75.161385][ T4263] device veth1_macvtap entered promiscuous mode [ 75.176476][ T4263] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 75.183935][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 75.192834][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 75.201543][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 75.210800][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 75.222510][ T4263] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 75.230029][ T4244] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 75.239013][ T4244] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 75.264952][ T4263] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.274387][ T4263] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.283602][ T4263] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.293615][ T4263] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 2026/09/19 17:06:47 executed programs: 0 [ 76.300529][ T4294] chnl_net:caif_netlink_parms(): no params data found [ 76.364579][ T4294] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.373169][ T4294] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.383066][ T4294] device bridge_slave_0 entered promiscuous mode [ 76.394921][ T4294] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.403654][ T4294] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.413500][ T4294] device bridge_slave_1 entered promiscuous mode [ 76.444349][ T4294] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 76.457619][ T4294] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 76.484694][ T4294] team0: Port device team_slave_0 added [ 76.492774][ T4294] team0: Port device team_slave_1 added [ 76.513661][ T4294] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 76.520806][ T4294] 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. [ 76.547029][ T4294] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 76.559612][ T4294] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 76.566888][ T4294] 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. [ 76.593209][ T4294] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 76.631100][ T4294] device hsr_slave_0 entered promiscuous mode [ 76.638462][ T4294] device hsr_slave_1 entered promiscuous mode [ 76.645078][ T4294] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 76.653420][ T4294] Cannot create hsr debugfs directory [ 76.741180][ T4294] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 78.176272][ T4301] Bluetooth: hci0: command 0x0409 tx timeout [ 79.840498][ T4294] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 80.255616][ T4303] Bluetooth: hci0: command 0x041b tx timeout [ 80.492161][ T4294] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 80.562117][ T4294] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 80.719319][ T4294] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 80.728403][ T4294] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 80.739270][ T4294] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 80.749709][ T4294] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 80.801489][ T4294] 8021q: adding VLAN 0 to HW filter on device bond0 [ 80.828542][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 80.837082][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 80.848067][ T4294] 8021q: adding VLAN 0 to HW filter on device team0 [ 80.869022][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 80.878475][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 80.888506][ T144] bridge0: port 1(bridge_slave_0) entered blocking state [ 80.895631][ T144] bridge0: port 1(bridge_slave_0) entered forwarding state [ 80.904197][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 80.914883][ T4244] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 80.924586][ T4244] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 80.933484][ T4244] bridge0: port 2(bridge_slave_1) entered blocking state [ 80.940610][ T4244] bridge0: port 2(bridge_slave_1) entered forwarding state [ 80.951908][ T4244] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 80.973256][ T4244] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 80.986828][ T4244] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 80.996194][ T4244] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 81.007025][ T4244] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 81.014901][ T4244] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 81.023671][ T4244] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 81.043068][ T4244] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 81.051593][ T4244] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 81.062633][ T4244] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 81.071271][ T4244] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 81.082872][ T4294] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 81.095973][ T410] device hsr_slave_0 left promiscuous mode [ 81.102678][ T410] device hsr_slave_1 left promiscuous mode [ 81.109430][ T410] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 81.117674][ T410] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 81.127439][ T410] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 81.136069][ T410] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 81.144064][ T410] device bridge_slave_1 left promiscuous mode [ 81.151081][ T410] bridge0: port 2(bridge_slave_1) entered disabled state [ 81.162681][ T410] device bridge_slave_0 left promiscuous mode [ 81.170199][ T410] bridge0: port 1(bridge_slave_0) entered disabled state [ 81.187713][ T410] device veth1_macvtap left promiscuous mode [ 81.194318][ T410] device veth0_macvtap left promiscuous mode [ 81.200639][ T410] device veth1_vlan left promiscuous mode [ 81.207126][ T410] device veth0_vlan left promiscuous mode [ 81.327583][ T410] team0 (unregistering): Port device team_slave_1 removed [ 81.342101][ T410] team0 (unregistering): Port device team_slave_0 removed [ 81.354185][ T410] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 81.369174][ T410] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 81.420833][ T410] bond0 (unregistering): Released all slaves [ 81.569189][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 81.577512][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 81.589747][ T4294] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 81.616771][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 81.625429][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 81.643022][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 81.652145][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 81.661599][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 81.669837][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 81.679247][ T4294] device veth0_vlan entered promiscuous mode [ 81.692263][ T4294] device veth1_vlan entered promiscuous mode [ 81.713057][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 81.721149][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 81.729961][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 81.738453][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 81.749798][ T4294] device veth0_macvtap entered promiscuous mode [ 81.759640][ T4294] device veth1_macvtap entered promiscuous mode [ 81.772619][ T4294] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 81.784844][ T4294] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 81.794112][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 81.802589][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 81.811129][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 81.820156][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 81.829293][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 81.837847][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 81.848349][ T4294] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.858098][ T4294] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.866847][ T4294] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.875590][ T4294] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.933878][ T154] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 81.949266][ T154] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 81.959689][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 81.985929][ T144] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 81.993803][ T144] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 82.003285][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 82.128206][ T4309] [ 82.130604][ T4309] ====================================================== [ 82.137854][ T4309] WARNING: possible circular locking dependency detected [ 82.144895][ T4309] syzkaller #0 Not tainted [ 82.149418][ T4309] ------------------------------------------------------ [ 82.156540][ T4309] syz.0.17/4309 is trying to acquire lock: [ 82.162443][ T4309] ffff888079e9d028 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 82.173543][ T4309] [ 82.173543][ T4309] but task is already holding lock: [ 82.180916][ T4309] ffffffff8d6d6b68 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x1ae/0x560 [ 82.190892][ T4309] [ 82.190892][ T4309] which lock already depends on the new lock. [ 82.190892][ T4309] [ 82.201312][ T4309] [ 82.201312][ T4309] the existing dependency chain (in reverse order) is: [ 82.210367][ T4309] [ 82.210367][ T4309] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 82.218569][ T4309] __mutex_lock_common+0x1e5/0x2400 [ 82.224418][ T4309] mutex_lock_nested+0x17/0x20 [ 82.229775][ T4309] rfkill_register+0x2f/0x970 [ 82.235111][ T4309] hci_register_dev+0x459/0x980 [ 82.241130][ T4309] vhci_create_device+0x32e/0x5c0 [ 82.246971][ T4309] vhci_write+0x389/0x440 [ 82.251930][ T4309] vfs_write+0x748/0xd70 [ 82.256703][ T4309] ksys_write+0x153/0x260 [ 82.261568][ T4309] do_syscall_64+0x4c/0xa0 [ 82.266516][ T4309] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 82.272959][ T4309] [ 82.272959][ T4309] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 82.280826][ T4309] __mutex_lock_common+0x1e5/0x2400 [ 82.286595][ T4309] mutex_lock_nested+0x17/0x20 [ 82.291998][ T4309] vhci_send_frame+0x88/0x100 [ 82.297214][ T4309] hci_send_frame+0x1a9/0x2e0 [ 82.302435][ T4309] hci_tx_work+0x9b5/0x16d0 [ 82.307484][ T4309] process_one_work+0x867/0xff0 [ 82.312876][ T4309] worker_thread+0xad7/0x12a0 [ 82.318087][ T4309] kthread+0x42e/0x520 [ 82.322872][ T4309] ret_from_fork+0x1f/0x30 [ 82.327805][ T4309] [ 82.327805][ T4309] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 82.337011][ T4309] __flush_work+0x116/0x210 [ 82.342035][ T4309] hci_dev_do_close+0x201/0x1020 [ 82.347530][ T4309] hci_unregister_dev+0x2eb/0x590 [ 82.353093][ T4309] vhci_release+0x73/0xc0 [ 82.357952][ T4309] __fput+0x212/0x8c0 [ 82.362549][ T4309] task_work_run+0x125/0x1a0 [ 82.367800][ T4309] do_exit+0x635/0x2110 [ 82.372474][ T4309] do_group_exit+0x12c/0x2f0 [ 82.377582][ T4309] get_signal+0x7eb/0x12e0 [ 82.382519][ T4309] arch_do_signal_or_restart+0xe6/0x12a0 [ 82.388844][ T4309] exit_to_user_mode_loop+0x9e/0x130 [ 82.394739][ T4309] exit_to_user_mode_prepare+0xee/0x180 [ 82.400896][ T4309] syscall_exit_to_user_mode+0x16/0x40 [ 82.407260][ T4309] do_syscall_64+0x58/0xa0 [ 82.412318][ T4309] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 82.418746][ T4309] [ 82.418746][ T4309] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 82.426388][ T4309] __mutex_lock_common+0x1e5/0x2400 [ 82.432104][ T4309] mutex_lock_nested+0x17/0x20 [ 82.437816][ T4309] bg_scan_update+0x44/0x3b0 [ 82.443208][ T4309] process_one_work+0x867/0xff0 [ 82.449026][ T4309] worker_thread+0xad7/0x12a0 [ 82.454329][ T4309] kthread+0x42e/0x520 [ 82.459177][ T4309] ret_from_fork+0x1f/0x30 [ 82.464116][ T4309] [ 82.464116][ T4309] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 82.473945][ T4309] __lock_acquire+0x2c66/0x7b50 [ 82.479316][ T4309] lock_acquire+0x19e/0x400 [ 82.484358][ T4309] __flush_work+0x116/0x210 [ 82.489474][ T4309] __cancel_work_timer+0x3f4/0x560 [ 82.495201][ T4309] hci_request_cancel_all+0xcc/0x300 [ 82.501120][ T4309] hci_dev_do_close+0x4e/0x1020 [ 82.506579][ T4309] hci_rfkill_set_block+0x101/0x180 [ 82.512329][ T4309] rfkill_set_block+0x1c1/0x3c0 [ 82.517819][ T4309] rfkill_fop_write+0x453/0x560 [ 82.523200][ T4309] vfs_write+0x304/0xd70 [ 82.528134][ T4309] ksys_write+0x153/0x260 [ 82.533008][ T4309] do_syscall_64+0x4c/0xa0 [ 82.537942][ T4309] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 82.544447][ T4309] [ 82.544447][ T4309] other info that might help us debug this: [ 82.544447][ T4309] [ 82.554686][ T4309] Chain exists of: [ 82.554686][ T4309] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 82.554686][ T4309] [ 82.570671][ T4309] Possible unsafe locking scenario: [ 82.570671][ T4309] [ 82.578114][ T4309] CPU0 CPU1 [ 82.583574][ T4309] ---- ---- [ 82.589017][ T4309] lock(rfkill_global_mutex); [ 82.593793][ T4309] lock(&data->open_mutex); [ 82.600895][ T4309] lock(rfkill_global_mutex); [ 82.608177][ T4309] lock((work_completion)(&hdev->bg_scan_update)); [ 82.614756][ T4309] [ 82.614756][ T4309] *** DEADLOCK *** [ 82.614756][ T4309] [ 82.622977][ T4309] 1 lock held by syz.0.17/4309: [ 82.627837][ T4309] #0: ffffffff8d6d6b68 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x1ae/0x560 [ 82.638113][ T4309] [ 82.638113][ T4309] stack backtrace: [ 82.644098][ T4309] CPU: 1 PID: 4309 Comm: syz.0.17 Not tainted syzkaller #0 [ 82.651483][ T4309] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 82.661711][ T4309] Call Trace: [ 82.664995][ T4309] [ 82.667924][ T4309] dump_stack_lvl+0x188/0x250 [ 82.672816][ T4309] ? load_image+0x410/0x410 [ 82.677423][ T4309] ? show_regs_print_info+0x20/0x20 [ 82.682622][ T4309] ? print_circular_bug+0x12b/0x1a0 [ 82.687819][ T4309] check_noncircular+0x296/0x330 [ 82.692753][ T4309] ? look_up_lock_class+0x71/0x110 [ 82.697862][ T4309] ? add_chain_block+0x9b0/0x9b0 [ 82.703143][ T4309] ? lockdep_lock+0xf1/0x1f0 [ 82.707732][ T4309] ? __lock_acquire+0x1305/0x7b50 [ 82.712952][ T4309] ? mark_lock+0x94/0x320 [ 82.717280][ T4309] ? _find_first_zero_bit+0xd1/0xf0 [ 82.722478][ T4309] __lock_acquire+0x2c66/0x7b50 [ 82.727374][ T4309] ? verify_lock_unused+0x140/0x140 [ 82.732664][ T4309] ? verify_lock_unused+0x140/0x140 [ 82.737866][ T4309] lock_acquire+0x19e/0x400 [ 82.742369][ T4309] ? __flush_work+0xfa/0x210 [ 82.746958][ T4309] ? __lock_acquire+0x7b50/0x7b50 [ 82.751979][ T4309] ? read_lock_is_recursive+0x10/0x10 [ 82.757442][ T4309] ? start_flush_work+0x784/0x830 [ 82.762462][ T4309] ? __lock_acquire+0x13dc/0x7b50 [ 82.767486][ T4309] __flush_work+0x116/0x210 [ 82.771986][ T4309] ? __flush_work+0xfa/0x210 [ 82.776572][ T4309] ? flush_work+0x20/0x20 [ 82.780897][ T4309] ? try_to_grab_pending+0xfb/0x820 [ 82.786090][ T4309] ? mark_lock+0x94/0x320 [ 82.790417][ T4309] ? lockdep_hardirqs_on_prepare+0x448/0x7c0 [ 82.796400][ T4309] ? lock_chain_count+0x20/0x20 [ 82.801244][ T4309] ? mark_lock+0x94/0x320 [ 82.805568][ T4309] ? __cancel_work_timer+0x36a/0x560 [ 82.810939][ T4309] __cancel_work_timer+0x3f4/0x560 [ 82.816221][ T4309] ? cancel_work_sync+0x20/0x20 [ 82.821261][ T4309] ? __cancel_work+0x1f9/0x2e0 [ 82.826365][ T4309] ? lockdep_hardirqs_on+0x94/0x140 [ 82.831822][ T4309] ? __cancel_work+0x27b/0x2e0 [ 82.836685][ T4309] ? cancel_work+0x20/0x20 [ 82.841114][ T4309] hci_request_cancel_all+0xcc/0x300 [ 82.846409][ T4309] hci_dev_do_close+0x4e/0x1020 [ 82.851264][ T4309] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 82.857151][ T4309] ? _raw_spin_unlock+0x40/0x40 [ 82.861996][ T4309] hci_rfkill_set_block+0x101/0x180 [ 82.867278][ T4309] ? rcu_lock_release+0x20/0x20 [ 82.872125][ T4309] rfkill_set_block+0x1c1/0x3c0 [ 82.876973][ T4309] rfkill_fop_write+0x453/0x560 [ 82.881832][ T4309] ? rfkill_fop_read+0x560/0x560 [ 82.886851][ T4309] ? common_file_perm+0x160/0x1c0 [ 82.891877][ T4309] ? fsnotify_perm+0x5d/0x560 [ 82.896641][ T4309] ? security_file_permission+0x75/0xa0 [ 82.902183][ T4309] ? rfkill_fop_read+0x560/0x560 [ 82.907209][ T4309] vfs_write+0x304/0xd70 [ 82.911451][ T4309] ? file_end_write+0x250/0x250 [ 82.916300][ T4309] ? __context_tracking_exit+0x4c/0x80 [ 82.921758][ T4309] ? __fdget_pos+0x1e2/0x370 [ 82.926387][ T4309] ksys_write+0x153/0x260 [ 82.930751][ T4309] ? __ia32_sys_read+0x80/0x80 [ 82.935547][ T4309] ? lockdep_hardirqs_on+0x94/0x140 [ 82.940767][ T4309] do_syscall_64+0x4c/0xa0 [ 82.945199][ T4309] ? clear_bhb_loop+0x30/0x80 [ 82.950287][ T4309] ? clear_bhb_loop+0x30/0x80 [ 82.954979][ T4309] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 82.960972][ T4309] RIP: 0033:0x7fd3b384c159 [ 82.965389][ T4309] 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 [ 82.985166][ T4309] RSP: 002b:00007ffc7ef926f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 82.993580][ T4309] RAX: ffffffffffffffda RBX: 00007fd3b3ad3fa0 RCX: 00007fd3b384c159 [ 83.001543][ T4309] RDX: 0000000000000008 RSI: 0000200000000080 RDI: 0000000000000003 [ 83.009610][ T4309] RBP: 00007fd3b38e306b R08: 0000000000000000 R09: 0000000000000000 [ 83.017668][ T4309] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 83.025896][ T4309] R13: 00007fd3b3ad3fac R14: 00007fd3b3ad3fa0 R15: 00007fd3b3ad3fa0 [ 83.033883][ T4309] [ 83.054900][ T4303] Bluetooth: hci0: command 0x040f tx timeout