Warning: Permanently added '10.128.1.57' (ED25519) to the list of known hosts. 1970/01/01 00:00:40 ignoring optional flag "sandboxArg"="0" 1970/01/01 00:00:41 parsed 1 programs [ 44.233726][ T4041] cgroup: Unknown subsys name 'net' [ 44.498937][ T4041] cgroup: Unknown subsys name 'rlimit' [ 44.880829][ T4041] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS [ 51.349970][ T4068] chnl_net:caif_netlink_parms(): no params data found [ 51.389450][ T4068] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.390812][ T4068] bridge0: port 1(bridge_slave_0) entered disabled state [ 51.393448][ T4068] device bridge_slave_0 entered promiscuous mode [ 51.397283][ T4068] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.398377][ T4068] bridge0: port 2(bridge_slave_1) entered disabled state [ 51.400214][ T4068] device bridge_slave_1 entered promiscuous mode [ 51.420216][ T4068] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 51.423531][ T4068] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 51.438449][ T4068] team0: Port device team_slave_0 added [ 51.442309][ T4068] team0: Port device team_slave_1 added [ 51.459388][ T4068] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 51.460513][ T4068] 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. [ 51.464862][ T4068] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 51.468229][ T4068] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 51.469198][ T4068] 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. [ 51.473043][ T4068] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 51.526167][ T4068] device hsr_slave_0 entered promiscuous mode [ 51.563248][ T4068] device hsr_slave_1 entered promiscuous mode [ 51.698644][ T4068] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 51.735422][ T4068] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 51.780070][ T4068] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 51.825120][ T4068] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 51.888779][ T4068] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.890063][ T4068] bridge0: port 2(bridge_slave_1) entered forwarding state [ 51.891472][ T4068] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.892568][ T4068] bridge0: port 1(bridge_slave_0) entered forwarding state [ 51.959478][ T4068] 8021q: adding VLAN 0 to HW filter on device bond0 [ 51.966187][ T1723] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 51.969694][ T1723] bridge0: port 1(bridge_slave_0) entered disabled state [ 51.972225][ T1723] bridge0: port 2(bridge_slave_1) entered disabled state [ 51.974847][ T1723] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 51.981703][ T4068] 8021q: adding VLAN 0 to HW filter on device team0 [ 51.988369][ T293] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 51.990070][ T293] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.991268][ T293] bridge0: port 1(bridge_slave_0) entered forwarding state [ 51.997472][ T1723] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 51.999311][ T1723] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.000434][ T1723] bridge0: port 2(bridge_slave_1) entered forwarding state [ 52.019231][ T293] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 52.021165][ T293] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 52.029082][ T293] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 52.037185][ T293] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 52.042413][ T293] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 52.047622][ T4068] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 52.137179][ T293] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 52.138487][ T293] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 52.146501][ T4068] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 52.160997][ T293] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 52.176989][ T1723] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 52.179755][ T1723] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 52.181379][ T1723] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 52.187946][ T4068] device veth0_vlan entered promiscuous mode [ 52.196094][ T4068] device veth1_vlan entered promiscuous mode [ 52.212391][ T1723] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 52.214495][ T1723] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 52.216292][ T1723] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 52.224531][ T4068] device veth0_macvtap entered promiscuous mode [ 52.228635][ T4068] device veth1_macvtap entered promiscuous mode [ 52.241909][ T4068] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 52.246164][ T1723] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 52.248481][ T1723] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 52.255352][ T4068] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 52.256739][ T1723] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 52.261799][ T4068] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 52.264315][ T4068] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 52.265619][ T4068] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 52.266989][ T4068] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 53.358356][ T136] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 53.658121][ T293] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 53.659349][ T293] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 53.662661][ T1723] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 53.676272][ T1723] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 53.677616][ T1723] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 53.679505][ T1723] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 1970/01/01 00:00:54 executed programs: 0 [ 54.380997][ T4136] chnl_net:caif_netlink_parms(): no params data found [ 54.416201][ T4136] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.417302][ T4136] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.419170][ T4136] device bridge_slave_0 entered promiscuous mode [ 54.422338][ T4136] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.424101][ T4136] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.425876][ T4136] device bridge_slave_1 entered promiscuous mode [ 54.446622][ T4136] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 54.450186][ T4136] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 54.466626][ T4136] team0: Port device team_slave_0 added [ 54.469556][ T4136] team0: Port device team_slave_1 added [ 54.482537][ T4136] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 54.483906][ T4136] 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. [ 54.487833][ T4136] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 54.491049][ T4136] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 54.492212][ T4136] 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. [ 54.496071][ T4136] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 54.585024][ T4136] device hsr_slave_0 entered promiscuous mode [ 54.623210][ T4136] device hsr_slave_1 entered promiscuous mode [ 54.663086][ T4136] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 54.664607][ T4136] Cannot create hsr debugfs directory [ 55.580812][ T136] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 56.353563][ T4074] Bluetooth: hci0: command 0x0409 tx timeout [ 58.029811][ T136] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 58.082320][ T136] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 58.433592][ T4157] Bluetooth: hci0: command 0x041b tx timeout [ 58.975982][ T4136] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 59.006483][ T4136] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 59.075946][ T4136] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 59.115356][ T4136] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 59.225170][ T4136] 8021q: adding VLAN 0 to HW filter on device bond0 [ 59.231370][ T368] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 59.233550][ T368] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 59.237449][ T4136] 8021q: adding VLAN 0 to HW filter on device team0 [ 59.244569][ T368] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 59.246394][ T368] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 59.247942][ T368] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.248909][ T368] bridge0: port 1(bridge_slave_0) entered forwarding state [ 59.250578][ T368] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 59.254518][ T368] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 59.256077][ T368] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.257113][ T368] bridge0: port 2(bridge_slave_1) entered forwarding state [ 59.258633][ T368] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 59.263420][ T368] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 59.267856][ T368] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 59.272175][ T368] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 59.274990][ T368] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 59.276766][ T368] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 59.280986][ T368] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 59.284018][ T368] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 59.288465][ T293] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 59.290201][ T293] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 59.294526][ T1723] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 59.296499][ T1723] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 59.300243][ T4136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 59.410540][ T293] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 59.411830][ T293] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 59.417822][ T4136] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 59.431322][ T293] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 59.436093][ T293] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 59.450133][ T293] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 59.452101][ T293] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 59.456641][ T293] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 59.458386][ T293] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 59.461728][ T4136] device veth0_vlan entered promiscuous mode [ 59.469707][ T4136] device veth1_vlan entered promiscuous mode [ 59.485580][ T293] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 59.487329][ T293] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 59.489026][ T293] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 59.491775][ T293] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 59.496908][ T4136] device veth0_macvtap entered promiscuous mode [ 59.500652][ T4136] device veth1_macvtap entered promiscuous mode [ 59.510465][ T4136] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 59.512232][ T4136] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 59.515231][ T4136] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 59.516334][ T1723] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 59.518081][ T1723] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 59.519711][ T1723] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 59.521381][ T1723] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 59.527591][ T4136] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 59.529165][ T4136] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 59.531539][ T4136] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 59.532741][ T1723] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 59.537383][ T1723] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 59.541244][ T4136] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.542437][ T4136] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.544441][ T4136] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.545745][ T4136] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.585948][ T1723] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 59.587169][ T1723] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 59.589043][ T1723] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 59.605552][ T1723] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 59.606751][ T1723] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 59.608684][ T293] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 59.801625][ T4196] [ 59.802009][ T4196] ====================================================== [ 59.802955][ T4196] WARNING: possible circular locking dependency detected [ 59.803945][ T4196] 5.15.189-syzkaller #0 Not tainted [ 59.804680][ T4196] ------------------------------------------------------ [ 59.805634][ T4196] syz.0.17/4196 is trying to acquire lock: [ 59.806436][ T4196] ffff0000dc6bcc28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xcc/0x1bc [ 59.807953][ T4196] [ 59.807953][ T4196] but task is already holding lock: [ 59.809008][ T4196] ffff80001651bc28 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x238/0x5cc [ 59.810381][ T4196] [ 59.810381][ T4196] which lock already depends on the new lock. [ 59.810381][ T4196] [ 59.811840][ T4196] [ 59.811840][ T4196] the existing dependency chain (in reverse order) is: [ 59.813145][ T4196] [ 59.813145][ T4196] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 59.814309][ T4196] __mutex_lock_common+0x194/0x1edc [ 59.815098][ T4196] mutex_lock_nested+0xac/0x11c [ 59.815842][ T4196] rfkill_register+0x44/0x77c [ 59.816587][ T4196] hci_register_dev+0x3d8/0x854 [ 59.817358][ T4196] vhci_create_device+0x2bc/0x564 [ 59.818165][ T4196] vhci_write+0x30c/0x3ac [ 59.818901][ T4196] vfs_write+0x7c8/0xa2c [ 59.819621][ T4196] ksys_write+0x120/0x210 [ 59.820372][ T4196] __arm64_sys_write+0x7c/0x90 [ 59.821111][ T4196] invoke_syscall+0x98/0x2b8 [ 59.821806][ T4196] el0_svc_common+0x138/0x258 [ 59.822561][ T4196] do_el0_svc+0x58/0x14c [ 59.823205][ T4196] el0_svc+0x78/0x1e0 [ 59.823802][ T4196] el0t_64_sync_handler+0xcc/0xe4 [ 59.824611][ T4196] el0t_64_sync+0x1a0/0x1a4 [ 59.825299][ T4196] [ 59.825299][ T4196] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 59.826456][ T4196] __mutex_lock_common+0x194/0x1edc [ 59.827272][ T4196] mutex_lock_nested+0xac/0x11c [ 59.828050][ T4196] vhci_send_frame+0x88/0x118 [ 59.828771][ T4196] hci_send_frame+0x194/0x2f0 [ 59.829516][ T4196] hci_tx_work+0x7e4/0x1394 [ 59.830247][ T4196] process_one_work+0x79c/0x1140 [ 59.831037][ T4196] worker_thread+0x8f4/0x101c [ 59.831729][ T4196] kthread+0x374/0x454 [ 59.832389][ T4196] ret_from_fork+0x10/0x20 [ 59.833043][ T4196] [ 59.833043][ T4196] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 59.834377][ T4196] __flush_work+0xf4/0x1bc [ 59.835081][ T4196] flush_work+0x24/0x38 [ 59.835736][ T4196] hci_dev_do_close+0x164/0x105c [ 59.836501][ T4196] hci_unregister_dev+0x23c/0x4c0 [ 59.837274][ T4196] vhci_release+0x74/0xc4 [ 59.837994][ T4196] __fput+0x1c0/0x7f8 [ 59.838623][ T4196] ____fput+0x20/0x30 [ 59.839241][ T4196] task_work_run+0x12c/0x1e0 [ 59.839934][ T4196] do_exit+0x684/0x1f58 [ 59.840591][ T4196] do_group_exit+0x100/0x268 [ 59.841295][ T4196] get_signal+0x73c/0x1340 [ 59.841983][ T4196] do_notify_resume+0x35c/0x3128 [ 59.842729][ T4196] el0_svc+0xf0/0x1e0 [ 59.843387][ T4196] el0t_64_sync_handler+0xcc/0xe4 [ 59.844164][ T4196] el0t_64_sync+0x1a0/0x1a4 [ 59.844875][ T4196] [ 59.844875][ T4196] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 59.845932][ T4196] __mutex_lock_common+0x194/0x1edc [ 59.846752][ T4196] mutex_lock_nested+0xac/0x11c [ 59.847531][ T4196] bg_scan_update+0x48/0x3d0 [ 59.848274][ T4196] process_one_work+0x79c/0x1140 [ 59.849027][ T4196] worker_thread+0x8f4/0x101c [ 59.849757][ T4196] kthread+0x374/0x454 [ 59.850430][ T4196] ret_from_fork+0x10/0x20 [ 59.851110][ T4196] [ 59.851110][ T4196] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 59.852442][ T4196] __lock_acquire+0x2928/0x651c [ 59.853254][ T4196] lock_acquire+0x1f4/0x620 [ 59.854016][ T4196] __flush_work+0xf4/0x1bc [ 59.854688][ T4196] __cancel_work_timer+0x2ec/0x448 [ 59.855512][ T4196] cancel_work_sync+0x24/0x38 [ 59.856324][ T4196] hci_request_cancel_all+0xbc/0x2d0 [ 59.857219][ T4196] hci_dev_do_close+0x54/0x105c [ 59.857984][ T4196] hci_rfkill_set_block+0xdc/0x1d0 [ 59.858804][ T4196] rfkill_set_block+0x18c/0x374 [ 59.859530][ T4196] rfkill_fop_write+0x4a4/0x5cc [ 59.860261][ T4196] vfs_write+0x280/0xa2c [ 59.861009][ T4196] ksys_write+0x120/0x210 [ 59.861676][ T4196] __arm64_sys_write+0x7c/0x90 [ 59.862420][ T4196] invoke_syscall+0x98/0x2b8 [ 59.863151][ T4196] el0_svc_common+0x138/0x258 [ 59.863844][ T4196] do_el0_svc+0x58/0x14c [ 59.864544][ T4196] el0_svc+0x78/0x1e0 [ 59.865173][ T4196] el0t_64_sync_handler+0xcc/0xe4 [ 59.865959][ T4196] el0t_64_sync+0x1a0/0x1a4 [ 59.866703][ T4196] [ 59.866703][ T4196] other info that might help us debug this: [ 59.866703][ T4196] [ 59.868122][ T4196] Chain exists of: [ 59.868122][ T4196] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 59.868122][ T4196] [ 59.870340][ T4196] Possible unsafe locking scenario: [ 59.870340][ T4196] [ 59.871322][ T4196] CPU0 CPU1 [ 59.872094][ T4196] ---- ---- [ 59.872844][ T4196] lock(rfkill_global_mutex); [ 59.873526][ T4196] lock(&data->open_mutex); [ 59.874629][ T4196] lock(rfkill_global_mutex); [ 59.875607][ T4196] lock((work_completion)(&hdev->bg_scan_update)); [ 59.876539][ T4196] [ 59.876539][ T4196] *** DEADLOCK *** [ 59.876539][ T4196] [ 59.877653][ T4196] 1 lock held by syz.0.17/4196: [ 59.878303][ T4196] #0: ffff80001651bc28 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x238/0x5cc [ 59.879725][ T4196] [ 59.879725][ T4196] stack backtrace: [ 59.880563][ T4196] CPU: 0 PID: 4196 Comm: syz.0.17 Not tainted 5.15.189-syzkaller #0 [ 59.881692][ T4196] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 59.883074][ T4196] Call trace: [ 59.883508][ T4196] dump_backtrace+0x0/0x43c [ 59.884113][ T4196] show_stack+0x2c/0x3c [ 59.884718][ T4196] __dump_stack+0x30/0x40 [ 59.885365][ T4196] dump_stack_lvl+0xf8/0x160 [ 59.886033][ T4196] dump_stack+0x1c/0x5c [ 59.886594][ T4196] print_circular_bug+0x148/0x1b0 [ 59.887298][ T4196] check_noncircular+0x240/0x2d4 [ 59.887994][ T4196] __lock_acquire+0x2928/0x651c [ 59.888699][ T4196] lock_acquire+0x1f4/0x620 [ 59.889353][ T4196] __flush_work+0xf4/0x1bc [ 59.889971][ T4196] __cancel_work_timer+0x2ec/0x448 [ 59.890711][ T4196] cancel_work_sync+0x24/0x38 [ 59.891389][ T4196] hci_request_cancel_all+0xbc/0x2d0 [ 59.892187][ T4196] hci_dev_do_close+0x54/0x105c [ 59.892864][ T4196] hci_rfkill_set_block+0xdc/0x1d0 [ 59.893566][ T4196] rfkill_set_block+0x18c/0x374 [ 59.894238][ T4196] rfkill_fop_write+0x4a4/0x5cc [ 59.894907][ T4196] vfs_write+0x280/0xa2c [ 59.895486][ T4196] ksys_write+0x120/0x210 [ 59.896105][ T4196] __arm64_sys_write+0x7c/0x90 [ 59.896774][ T4196] invoke_syscall+0x98/0x2b8 [ 59.897420][ T4196] el0_svc_common+0x138/0x258 [ 59.898048][ T4196] do_el0_svc+0x58/0x14c [ 59.898665][ T4196] el0_svc+0x78/0x1e0 [ 59.899231][ T4196] el0t_64_sync_handler+0xcc/0xe4 [ 59.899911][ T4196] el0t_64_sync+0x1a0/0x1a4