Warning: Permanently added '10.128.0.23' (ED25519) to the list of known hosts. 2025/09/08 14:48:37 parsed 1 programs [ 62.194129][ T4189] cgroup: Unknown subsys name 'net' [ 62.332625][ T4189] cgroup: Unknown subsys name 'rlimit' [ 63.867621][ T4189] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 65.755167][ T1256] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 65.763734][ T1256] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 65.777608][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 65.794668][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 65.803653][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 65.812524][ T1164] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 67.448607][ T4250] chnl_net:caif_netlink_parms(): no params data found [ 67.501085][ T4250] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.511090][ T4250] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.519907][ T4250] device bridge_slave_0 entered promiscuous mode [ 67.531042][ T4250] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.538889][ T4250] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.550085][ T4250] device bridge_slave_1 entered promiscuous mode [ 67.581856][ T4250] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 67.602749][ T4250] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 67.757618][ T4250] team0: Port device team_slave_0 added [ 67.767529][ T4250] team0: Port device team_slave_1 added [ 67.803346][ T4250] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 67.810902][ T4250] 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. [ 67.838560][ T4250] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 67.851236][ T4250] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 67.858941][ T4250] 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. [ 67.885672][ T4250] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 67.914710][ T4250] device hsr_slave_0 entered promiscuous mode [ 67.922422][ T4250] device hsr_slave_1 entered promiscuous mode [ 68.032601][ T4250] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 68.043314][ T4250] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 68.052195][ T4250] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 68.063313][ T4250] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 68.142986][ T4250] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.179104][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 68.188119][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.199780][ T4250] 8021q: adding VLAN 0 to HW filter on device team0 [ 68.211412][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 68.221898][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 68.231713][ T154] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.239605][ T154] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.249589][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 68.280573][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 68.290121][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 68.299359][ T154] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.306646][ T154] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.327678][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 68.336362][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 68.345110][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 68.354489][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 68.363545][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 68.394398][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 68.404291][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 68.414378][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 68.423407][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 68.433837][ T4250] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 68.540102][ T1256] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 68.549539][ T1256] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 68.580078][ T4250] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 68.598095][ T1256] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 68.617177][ T1256] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 68.627107][ T1256] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 68.635294][ T1256] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 68.646453][ T4250] device veth0_vlan entered promiscuous mode [ 68.675186][ T4250] device veth1_vlan entered promiscuous mode [ 68.696084][ T1256] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 68.704465][ T1256] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 68.714114][ T1256] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 68.727370][ T4250] device veth0_macvtap entered promiscuous mode [ 68.754103][ T4250] device veth1_macvtap entered promiscuous mode [ 68.772202][ T4250] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 68.784631][ T1256] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 68.793647][ T1256] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 68.804074][ T1256] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 68.816513][ T4250] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 68.824136][ T1164] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 68.834613][ T1164] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 68.846992][ T4250] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.856465][ T4250] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.866155][ T4250] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.875233][ T4250] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 2025/09/08 14:48:46 executed programs: 0 [ 70.286477][ T4301] chnl_net:caif_netlink_parms(): no params data found [ 70.358322][ T4301] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.365574][ T4301] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.374338][ T4301] device bridge_slave_0 entered promiscuous mode [ 70.384134][ T4301] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.392222][ T4301] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.401895][ T4301] device bridge_slave_1 entered promiscuous mode [ 70.434601][ T4301] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 70.446654][ T4301] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 70.481850][ T4301] team0: Port device team_slave_0 added [ 70.490167][ T4301] team0: Port device team_slave_1 added [ 70.512572][ T4301] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 70.519651][ T4301] 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. [ 70.546902][ T4301] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 70.561087][ T4301] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 70.569570][ T4301] 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. [ 70.597156][ T4301] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 70.639927][ T4301] device hsr_slave_0 entered promiscuous mode [ 70.649764][ T4301] device hsr_slave_1 entered promiscuous mode [ 70.656854][ T4301] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 70.667479][ T4301] Cannot create hsr debugfs directory [ 70.777262][ T4301] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 71.496299][ T1422] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.503141][ T1422] ieee802154 phy1 wpan1: encryption failed: -22 [ 72.133596][ T4271] Bluetooth: hci0: command 0x0409 tx timeout [ 73.889257][ T4301] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 73.928785][ T4301] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 73.990399][ T4301] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 74.068969][ T4301] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 74.079382][ T4301] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 74.089580][ T4301] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 74.099250][ T4301] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 74.152471][ T4301] 8021q: adding VLAN 0 to HW filter on device bond0 [ 74.165754][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 74.174486][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 74.185345][ T4301] 8021q: adding VLAN 0 to HW filter on device team0 [ 74.205224][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 74.214760][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 74.223235][ T4273] Bluetooth: hci0: command 0x041b tx timeout [ 74.224024][ T154] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.237113][ T154] bridge0: port 1(bridge_slave_0) entered forwarding state [ 74.248133][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 74.256710][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 74.265992][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 74.275438][ T154] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.282808][ T154] bridge0: port 2(bridge_slave_1) entered forwarding state [ 74.304369][ T1256] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 74.317304][ T1164] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 74.329055][ T1164] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 74.340149][ T1164] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 74.352178][ T1164] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 74.375508][ T1164] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 74.384778][ T1164] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 74.399576][ T4301] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 74.410707][ T4301] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 74.424671][ T1164] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 74.433539][ T1164] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 74.442953][ T1164] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 74.452572][ T1164] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 74.460955][ T1164] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 74.553971][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 74.561474][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 74.584378][ T4301] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 74.603323][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 74.612079][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 74.639993][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 74.648626][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 74.658724][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 74.667475][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 74.678241][ T4301] device veth0_vlan entered promiscuous mode [ 74.700985][ T4301] device veth1_vlan entered promiscuous mode [ 74.721136][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 74.729541][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 74.739118][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 74.748770][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 74.760021][ T4301] device veth0_macvtap entered promiscuous mode [ 74.781985][ T4301] device veth1_macvtap entered promiscuous mode [ 74.797854][ T4301] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 74.809152][ T4301] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 74.820935][ T4301] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 74.830793][ T1164] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 74.840426][ T1164] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 74.849840][ T1164] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 74.859464][ T1164] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 74.876055][ T144] device hsr_slave_0 left promiscuous mode [ 74.883228][ T144] device hsr_slave_1 left promiscuous mode [ 74.889829][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 74.897819][ T144] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 74.906847][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 74.914959][ T144] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 74.923522][ T144] device bridge_slave_1 left promiscuous mode [ 74.930538][ T144] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.945664][ T144] device bridge_slave_0 left promiscuous mode [ 74.952585][ T144] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.969968][ T144] device veth1_macvtap left promiscuous mode [ 74.976574][ T144] device veth0_macvtap left promiscuous mode [ 74.984417][ T144] device veth1_vlan left promiscuous mode [ 74.990932][ T144] device veth0_vlan left promiscuous mode [ 75.135158][ T144] team0 (unregistering): Port device team_slave_1 removed [ 75.151135][ T144] team0 (unregistering): Port device team_slave_0 removed [ 75.165109][ T144] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 75.178410][ T144] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 75.231290][ T144] bond0 (unregistering): Released all slaves [ 75.299064][ T4301] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 75.310788][ T1164] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 75.320003][ T1164] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 75.330643][ T4301] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.340111][ T4301] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.350143][ T4301] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.359322][ T4301] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.434631][ T1256] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 75.446486][ T1256] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 75.481236][ T154] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 75.482193][ T1164] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 75.492481][ T154] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 75.510353][ T1164] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 75.628131][ T4326] [ 75.630514][ T4326] ====================================================== [ 75.637538][ T4326] WARNING: possible circular locking dependency detected [ 75.644639][ T4326] syzkaller #0 Not tainted [ 75.649198][ T4326] ------------------------------------------------------ [ 75.656646][ T4326] syz.0.17/4326 is trying to acquire lock: [ 75.662566][ T4326] ffff888077b28c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xc1/0x1b0 [ 75.673979][ T4326] [ 75.673979][ T4326] but task is already holding lock: [ 75.681775][ T4326] ffffffff8d4c0068 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 75.691557][ T4326] [ 75.691557][ T4326] which lock already depends on the new lock. [ 75.691557][ T4326] [ 75.702068][ T4326] [ 75.702068][ T4326] the existing dependency chain (in reverse order) is: [ 75.711349][ T4326] [ 75.711349][ T4326] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 75.719534][ T4326] __mutex_lock_common+0x1eb/0x2390 [ 75.725618][ T4326] mutex_lock_nested+0x17/0x20 [ 75.730899][ T4326] rfkill_register+0x33/0x8a0 [ 75.736095][ T4326] hci_register_dev+0x452/0x970 [ 75.741568][ T4326] vhci_create_device+0x32c/0x5c0 [ 75.747206][ T4326] vhci_write+0x391/0x450 [ 75.752086][ T4326] vfs_write+0x712/0xd00 [ 75.756942][ T4326] ksys_write+0x14d/0x250 [ 75.761802][ T4326] do_syscall_64+0x4c/0xa0 [ 75.766929][ T4326] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 75.774011][ T4326] [ 75.774011][ T4326] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 75.782491][ T4326] __mutex_lock_common+0x1eb/0x2390 [ 75.788340][ T4326] mutex_lock_nested+0x17/0x20 [ 75.794019][ T4326] vhci_send_frame+0x88/0x100 [ 75.799327][ T4326] hci_send_frame+0x1a9/0x2e0 [ 75.804541][ T4326] hci_tx_work+0x9f9/0x1710 [ 75.809570][ T4326] process_one_work+0x863/0x1000 [ 75.815197][ T4326] worker_thread+0xaa8/0x12a0 [ 75.820407][ T4326] kthread+0x436/0x520 [ 75.825083][ T4326] ret_from_fork+0x1f/0x30 [ 75.830283][ T4326] [ 75.830283][ T4326] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 75.840009][ T4326] __flush_work+0xdd/0x1b0 [ 75.845103][ T4326] hci_dev_do_close+0x1e7/0x1030 [ 75.850692][ T4326] hci_unregister_dev+0x2d7/0x580 [ 75.856713][ T4326] vhci_release+0x73/0xc0 [ 75.861776][ T4326] __fput+0x234/0x930 [ 75.866283][ T4326] task_work_run+0x125/0x1a0 [ 75.871601][ T4326] do_exit+0x61e/0x20a0 [ 75.876399][ T4326] do_group_exit+0x12e/0x300 [ 75.881682][ T4326] get_signal+0x6ca/0x12c0 [ 75.886789][ T4326] arch_do_signal_or_restart+0xc1/0x1300 [ 75.892951][ T4326] exit_to_user_mode_loop+0x9e/0x130 [ 75.898753][ T4326] exit_to_user_mode_prepare+0xb1/0x140 [ 75.904918][ T4326] syscall_exit_to_user_mode+0x16/0x40 [ 75.910941][ T4326] do_syscall_64+0x58/0xa0 [ 75.915904][ T4326] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 75.922421][ T4326] [ 75.922421][ T4326] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 75.930161][ T4326] __mutex_lock_common+0x1eb/0x2390 [ 75.935901][ T4326] mutex_lock_nested+0x17/0x20 [ 75.941585][ T4326] bg_scan_update+0x44/0x3b0 [ 75.946893][ T4326] process_one_work+0x863/0x1000 [ 75.952651][ T4326] worker_thread+0xaa8/0x12a0 [ 75.958023][ T4326] kthread+0x436/0x520 [ 75.963126][ T4326] ret_from_fork+0x1f/0x30 [ 75.968094][ T4326] [ 75.968094][ T4326] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 75.977935][ T4326] __lock_acquire+0x2c33/0x7c60 [ 75.983413][ T4326] lock_acquire+0x197/0x3f0 [ 75.988674][ T4326] __flush_work+0xdd/0x1b0 [ 75.993702][ T4326] __cancel_work_timer+0x3ac/0x520 [ 75.999541][ T4326] hci_request_cancel_all+0xcc/0x300 [ 76.005433][ T4326] hci_dev_do_close+0x4e/0x1030 [ 76.010801][ T4326] hci_rfkill_set_block+0x10a/0x190 [ 76.016621][ T4326] rfkill_set_block+0x1c6/0x420 [ 76.021989][ T4326] rfkill_fop_write+0x458/0x560 [ 76.027444][ T4326] vfs_write+0x300/0xd00 [ 76.032315][ T4326] ksys_write+0x14d/0x250 [ 76.037160][ T4326] do_syscall_64+0x4c/0xa0 [ 76.042297][ T4326] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 76.049684][ T4326] [ 76.049684][ T4326] other info that might help us debug this: [ 76.049684][ T4326] [ 76.060866][ T4326] Chain exists of: [ 76.060866][ T4326] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 76.060866][ T4326] [ 76.077055][ T4326] Possible unsafe locking scenario: [ 76.077055][ T4326] [ 76.084731][ T4326] CPU0 CPU1 [ 76.090093][ T4326] ---- ---- [ 76.095700][ T4326] lock(rfkill_global_mutex); [ 76.100559][ T4326] lock(&data->open_mutex); [ 76.108176][ T4326] lock(rfkill_global_mutex); [ 76.116111][ T4326] lock((work_completion)(&hdev->bg_scan_update)); [ 76.122868][ T4326] [ 76.122868][ T4326] *** DEADLOCK *** [ 76.122868][ T4326] [ 76.131090][ T4326] 1 lock held by syz.0.17/4326: [ 76.136107][ T4326] #0: ffffffff8d4c0068 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 76.146649][ T4326] [ 76.146649][ T4326] stack backtrace: [ 76.152890][ T4326] CPU: 1 PID: 4326 Comm: syz.0.17 Not tainted syzkaller #0 [ 76.160114][ T4326] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 76.172487][ T4326] Call Trace: [ 76.177229][ T4326] [ 76.180404][ T4326] dump_stack_lvl+0x168/0x230 [ 76.185966][ T4326] ? load_image+0x3b0/0x3b0 [ 76.190697][ T4326] ? show_regs_print_info+0x20/0x20 [ 76.196727][ T4326] ? print_circular_bug+0x12b/0x1a0 [ 76.202055][ T4326] check_noncircular+0x274/0x310 [ 76.207136][ T4326] ? add_chain_block+0x940/0x940 [ 76.212440][ T4326] ? lockdep_lock+0x141/0x1e0 [ 76.217302][ T4326] ? __lock_acquire+0x12d9/0x7c60 [ 76.222527][ T4326] ? lockdep_lock+0x1e0/0x1e0 [ 76.227334][ T4326] ? mark_lock+0x94/0x320 [ 76.231973][ T4326] ? _find_first_zero_bit+0xce/0xf0 [ 76.237368][ T4326] __lock_acquire+0x2c33/0x7c60 [ 76.242505][ T4326] ? verify_lock_unused+0x140/0x140 [ 76.247932][ T4326] ? verify_lock_unused+0x140/0x140 [ 76.253147][ T4326] lock_acquire+0x197/0x3f0 [ 76.257668][ T4326] ? __flush_work+0xc1/0x1b0 [ 76.262280][ T4326] ? __lock_acquire+0x7c60/0x7c60 [ 76.267346][ T4326] ? read_lock_is_recursive+0x10/0x10 [ 76.272742][ T4326] ? start_flush_work+0x776/0x820 [ 76.277764][ T4326] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 76.283659][ T4326] ? _raw_spin_unlock+0x40/0x40 [ 76.288619][ T4326] __flush_work+0xdd/0x1b0 [ 76.293035][ T4326] ? __flush_work+0xc1/0x1b0 [ 76.297654][ T4326] ? flush_work+0x20/0x20 [ 76.302506][ T4326] ? try_to_grab_pending+0xf3/0x7e0 [ 76.307879][ T4326] ? lockdep_hardirqs_off+0x70/0x100 [ 76.313335][ T4326] ? mark_lock+0x94/0x320 [ 76.317756][ T4326] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 76.323780][ T4326] ? lock_chain_count+0x20/0x20 [ 76.328628][ T4326] ? mark_lock+0x94/0x320 [ 76.332956][ T4326] ? __cancel_work_timer+0x331/0x520 [ 76.338369][ T4326] __cancel_work_timer+0x3ac/0x520 [ 76.343724][ T4326] ? cancel_work_sync+0x20/0x20 [ 76.348611][ T4326] ? __cancel_work+0x1f4/0x2d0 [ 76.353385][ T4326] ? lockdep_hardirqs_on+0x94/0x140 [ 76.358847][ T4326] ? __cancel_work+0x26f/0x2d0 [ 76.363776][ T4326] ? cancel_work+0x20/0x20 [ 76.368407][ T4326] ? lock_chain_count+0x20/0x20 [ 76.373497][ T4326] hci_request_cancel_all+0xcc/0x300 [ 76.379909][ T4326] hci_dev_do_close+0x4e/0x1030 [ 76.385333][ T4326] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 76.391254][ T4326] ? _raw_spin_unlock+0x40/0x40 [ 76.396720][ T4326] hci_rfkill_set_block+0x10a/0x190 [ 76.402745][ T4326] ? rcu_lock_release+0x20/0x20 [ 76.407698][ T4326] rfkill_set_block+0x1c6/0x420 [ 76.412890][ T4326] rfkill_fop_write+0x458/0x560 [ 76.418237][ T4326] ? verify_lock_unused+0x140/0x140 [ 76.423838][ T4326] ? rfkill_fop_read+0x4b0/0x4b0 [ 76.428819][ T4326] ? common_file_perm+0x130/0x1c0 [ 76.433858][ T4326] ? fsnotify_perm+0x5d/0x560 [ 76.438540][ T4326] ? security_file_permission+0x75/0xa0 [ 76.444453][ T4326] ? rfkill_fop_read+0x4b0/0x4b0 [ 76.449714][ T4326] vfs_write+0x300/0xd00 [ 76.453976][ T4326] ? file_end_write+0x250/0x250 [ 76.459742][ T4326] ? __context_tracking_exit+0x4c/0x80 [ 76.465238][ T4326] ? __lock_acquire+0x7c60/0x7c60 [ 76.470791][ T4326] ? __fdget_pos+0x1e2/0x370 [ 76.475402][ T4326] ksys_write+0x14d/0x250 [ 76.479909][ T4326] ? __ia32_sys_read+0x80/0x80 [ 76.484771][ T4326] ? lockdep_hardirqs_on+0x94/0x140 [ 76.489993][ T4326] do_syscall_64+0x4c/0xa0 [ 76.494421][ T4326] ? clear_bhb_loop+0x30/0x80 [ 76.499373][ T4326] ? clear_bhb_loop+0x30/0x80 [ 76.504254][ T4326] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 76.510471][ T4326] RIP: 0033:0x7f4aa3b32be9 [ 76.515020][ T4326] 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 [ 76.534973][ T4326] RSP: 002b:00007fffd6cccdc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 76.543484][ T4326] RAX: ffffffffffffffda RBX: 00007f4aa3d69fa0 RCX: 00007f4aa3b32be9 [ 76.551755][ T4326] RDX: 0000000000000008 RSI: 00002000000002c0 RDI: 0000000000000003 [ 76.559843][ T4326] RBP: 00007f4aa3bb5e19 R08: 0000000000000000 R09: 0000000000000000 [ 76.568086][ T4326] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 76.576505][ T4326] R13: 00007f4aa3d69fa0 R14: 00007f4aa3d69fa0 R15: 0000000000000003 [ 76.584486][ T4326] [ 76.590940][ T4271] Bluetooth: hci0: command 0x040f tx timeout