Warning: Permanently added '10.128.0.197' (ED25519) to the list of known hosts. 1970/01/01 00:00:46 ignoring optional flag "sandboxArg"="0" 1970/01/01 00:00:47 parsed 1 programs [ 49.736296][ T4024] cgroup: Unknown subsys name 'net' [ 50.010217][ T4024] cgroup: Unknown subsys name 'rlimit' [ 50.350110][ T4024] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS [ 56.549785][ T4035] chnl_net:caif_netlink_parms(): no params data found [ 56.588019][ T4035] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.589517][ T4035] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.591889][ T4035] device bridge_slave_0 entered promiscuous mode [ 56.596195][ T4035] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.597757][ T4035] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.599901][ T4035] device bridge_slave_1 entered promiscuous mode [ 56.615607][ T4035] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 56.620315][ T4035] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 56.635006][ T4035] team0: Port device team_slave_0 added [ 56.637857][ T4035] team0: Port device team_slave_1 added [ 56.651367][ T4035] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 56.652778][ T4035] 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. [ 56.658597][ T4035] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 56.662573][ T4035] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 56.664150][ T4035] 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. [ 56.669195][ T4035] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 56.736331][ T4035] device hsr_slave_0 entered promiscuous mode [ 56.774230][ T4035] device hsr_slave_1 entered promiscuous mode [ 56.910106][ T4035] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 56.957088][ T4035] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 57.006318][ T4035] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 57.047630][ T4035] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 57.131437][ T4035] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.133052][ T4035] bridge0: port 2(bridge_slave_1) entered forwarding state [ 57.135093][ T4035] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.136576][ T4035] bridge0: port 1(bridge_slave_0) entered forwarding state [ 57.175856][ T4035] 8021q: adding VLAN 0 to HW filter on device bond0 [ 57.186302][ T1673] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 57.189804][ T1673] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.192311][ T1673] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.195643][ T1673] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 57.202788][ T4035] 8021q: adding VLAN 0 to HW filter on device team0 [ 57.208005][ T1673] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 57.210459][ T1673] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.212215][ T1673] bridge0: port 1(bridge_slave_0) entered forwarding state [ 57.218221][ T1673] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 57.220426][ T1673] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.221918][ T1673] bridge0: port 2(bridge_slave_1) entered forwarding state [ 57.233641][ T1673] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 57.236913][ T1673] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 57.242447][ T1673] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 57.249652][ T1673] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 57.258037][ T1673] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 57.262786][ T4035] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 57.332176][ T1673] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 57.333802][ T1673] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 57.341091][ T4035] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 57.352898][ T1673] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 57.367069][ T1673] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 57.369347][ T1673] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 57.371369][ T1673] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 57.376040][ T4035] device veth0_vlan entered promiscuous mode [ 57.381873][ T4035] device veth1_vlan entered promiscuous mode [ 57.397652][ T1673] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 57.399822][ T1673] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 57.402014][ T1673] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 57.407278][ T4035] device veth0_macvtap entered promiscuous mode [ 57.412695][ T4035] device veth1_macvtap entered promiscuous mode [ 57.424270][ T4035] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 57.427519][ T1673] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 57.430365][ T1673] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 57.434907][ T4035] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 57.437056][ T1673] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 57.442387][ T4035] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 57.444524][ T4035] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 57.446372][ T4035] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 57.448261][ T4035] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 57.785199][ T148] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 60.700703][ T148] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 63.170285][ T148] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 63.251642][ T148] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 63.682415][ T1601] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 63.684456][ T1601] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 63.687093][ T1601] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 63.705438][ T1601] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 63.707300][ T1601] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 63.709637][ T1673] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 64.442277][ T148] device hsr_slave_0 left promiscuous mode [ 64.475866][ T148] device hsr_slave_1 left promiscuous mode [ 64.536318][ T148] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 64.538049][ T148] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 64.540943][ T148] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 64.542407][ T148] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 64.550019][ T148] device bridge_slave_1 left promiscuous mode [ 64.551907][ T148] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.621254][ T148] device bridge_slave_0 left promiscuous mode [ 64.622711][ T148] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.754630][ T148] device veth1_macvtap left promiscuous mode [ 64.756060][ T148] device veth0_macvtap left promiscuous mode [ 64.757515][ T148] device veth1_vlan left promiscuous mode [ 64.758943][ T148] device veth0_vlan left promiscuous mode [ 64.967659][ T148] team0 (unregistering): Port device team_slave_1 removed [ 64.977354][ T148] team0 (unregistering): Port device team_slave_0 removed [ 64.985587][ T148] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 65.041894][ T148] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 65.182497][ T148] bond0 (unregistering): Released all slaves 1970/01/01 00:01:06 executed programs: 0 [ 66.555489][ T4203] chnl_net:caif_netlink_parms(): no params data found [ 66.630446][ T4203] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.631912][ T4203] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.635061][ T4203] device bridge_slave_0 entered promiscuous mode [ 66.640162][ T4203] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.641687][ T4203] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.645802][ T4203] device bridge_slave_1 entered promiscuous mode [ 66.687461][ T4203] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.691456][ T4203] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.717639][ T4203] team0: Port device team_slave_0 added [ 66.720919][ T4203] team0: Port device team_slave_1 added [ 66.736089][ T4203] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 66.737607][ T4203] 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. [ 66.742764][ T4203] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 66.750543][ T4203] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 66.752073][ T4203] 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. [ 66.765589][ T4203] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 66.857883][ T4203] device hsr_slave_0 entered promiscuous mode [ 66.914496][ T4203] device hsr_slave_1 entered promiscuous mode [ 67.808647][ T4203] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 67.829537][ T4203] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 67.866034][ T4203] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 67.897162][ T4203] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 68.000754][ T4203] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.010525][ T1601] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 68.012478][ T1601] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.017704][ T4203] 8021q: adding VLAN 0 to HW filter on device team0 [ 68.023202][ T823] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 68.025750][ T823] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 68.028114][ T823] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.029453][ T823] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.031805][ T823] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 68.037168][ T823] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 68.039302][ T823] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 68.041385][ T823] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.042764][ T823] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.050820][ T823] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 68.053533][ T823] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 68.067041][ T823] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 68.070299][ T823] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 68.072521][ T823] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 68.076702][ T823] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 68.078971][ T823] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 68.081117][ T823] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 68.086243][ T4203] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 68.088808][ T4203] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 68.095887][ T823] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 68.098260][ T823] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 68.100395][ T823] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 68.176652][ T4203] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 68.178904][ T1601] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 68.180641][ T1601] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 68.193275][ T1601] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 68.195887][ T1601] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 68.218558][ T823] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 68.220426][ T823] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 68.222591][ T823] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 68.225320][ T823] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 68.229698][ T4203] device veth0_vlan entered promiscuous mode [ 68.237245][ T4203] device veth1_vlan entered promiscuous mode [ 68.253415][ T823] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 68.256104][ T823] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 68.258104][ T823] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 68.260309][ T823] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 68.267792][ T4203] device veth0_macvtap entered promiscuous mode [ 68.272074][ T4203] device veth1_macvtap entered promiscuous mode [ 68.284854][ T4203] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 68.286410][ T823] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 68.288415][ T823] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 68.291110][ T823] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 68.293281][ T823] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 68.345181][ T4203] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 68.347071][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 68.349150][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 68.357782][ T4203] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.359604][ T4203] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.361389][ T4203] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.363164][ T4203] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.419644][ T823] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 68.421394][ T823] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 68.424511][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 68.426612][ T3606] Bluetooth: hci1: command 0x0409 tx timeout [ 68.457245][ T136] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 68.458943][ T136] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 68.461635][ T1601] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 68.631456][ T4321] [ 68.631931][ T4321] ====================================================== [ 68.633469][ T4321] WARNING: possible circular locking dependency detected [ 68.634869][ T4321] 5.15.173-syzkaller #0 Not tainted [ 68.635847][ T4321] ------------------------------------------------------ [ 68.637390][ T4321] syz.0.15/4321 is trying to acquire lock: [ 68.638599][ T4321] ffff0000da1e4c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xd0/0x1c0 [ 68.640899][ T4321] [ 68.640899][ T4321] but task is already holding lock: [ 68.642386][ T4321] ffff800016f25fe8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x250/0x750 [ 68.644436][ T4321] [ 68.644436][ T4321] which lock already depends on the new lock. [ 68.644436][ T4321] [ 68.646755][ T4321] [ 68.646755][ T4321] the existing dependency chain (in reverse order) is: [ 68.648701][ T4321] [ 68.648701][ T4321] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 68.650388][ T4321] __mutex_lock_common+0x194/0x2154 [ 68.651669][ T4321] mutex_lock_nested+0xa4/0xf8 [ 68.652710][ T4321] rfkill_register+0x44/0x7a4 [ 68.653791][ T4321] hci_register_dev+0x3e0/0x880 [ 68.654817][ T4321] vhci_create_device+0x2c4/0x568 [ 68.656036][ T4321] vhci_write+0x318/0x3b8 [ 68.657013][ T4321] vfs_write+0x884/0xb44 [ 68.657999][ T4321] ksys_write+0x15c/0x26c [ 68.658955][ T4321] __arm64_sys_write+0x7c/0x90 [ 68.660052][ T4321] invoke_syscall+0x98/0x2b8 [ 68.661073][ T4321] el0_svc_common+0x138/0x258 [ 68.662221][ T4321] do_el0_svc+0x58/0x14c [ 68.663201][ T4321] el0_svc+0x7c/0x1f0 [ 68.664074][ T4321] el0t_64_sync_handler+0x84/0xe4 [ 68.665279][ T4321] el0t_64_sync+0x1a0/0x1a4 [ 68.666249][ T4321] [ 68.666249][ T4321] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 68.667957][ T4321] __mutex_lock_common+0x194/0x2154 [ 68.669317][ T4321] mutex_lock_nested+0xa4/0xf8 [ 68.670380][ T4321] vhci_send_frame+0x8c/0x10c [ 68.671516][ T4321] hci_send_frame+0x194/0x2f0 [ 68.672513][ T4321] hci_tx_work+0x9ac/0x16cc [ 68.673562][ T4321] process_one_work+0x790/0x11b8 [ 68.674724][ T4321] worker_thread+0x910/0x1034 [ 68.675816][ T4321] kthread+0x37c/0x45c [ 68.676869][ T4321] ret_from_fork+0x10/0x20 [ 68.677922][ T4321] [ 68.677922][ T4321] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 68.679962][ T4321] __flush_work+0xf8/0x1c0 [ 68.681026][ T4321] flush_work+0x24/0x38 [ 68.682056][ T4321] hci_dev_do_close+0x16c/0x1060 [ 68.683179][ T4321] hci_unregister_dev+0x248/0x4d4 [ 68.684308][ T4321] vhci_release+0x74/0xc4 [ 68.685366][ T4321] __fput+0x1c4/0x800 [ 68.686304][ T4321] ____fput+0x20/0x30 [ 68.687267][ T4321] task_work_run+0x130/0x1e4 [ 68.688334][ T4321] do_exit+0x670/0x20bc [ 68.689408][ T4321] do_group_exit+0x110/0x268 [ 68.690463][ T4321] get_signal+0x634/0x1550 [ 68.691521][ T4321] do_notify_resume+0x3d0/0x32b8 [ 68.692701][ T4321] el0_svc+0xfc/0x1f0 [ 68.693656][ T4321] el0t_64_sync_handler+0x84/0xe4 [ 68.694837][ T4321] el0t_64_sync+0x1a0/0x1a4 [ 68.695886][ T4321] [ 68.695886][ T4321] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 68.697418][ T4321] __mutex_lock_common+0x194/0x2154 [ 68.698602][ T4321] mutex_lock_nested+0xa4/0xf8 [ 68.699647][ T4321] bg_scan_update+0x9c/0x470 [ 68.700658][ T4321] process_one_work+0x790/0x11b8 [ 68.701683][ T4321] worker_thread+0x910/0x1034 [ 68.702805][ T4321] kthread+0x37c/0x45c [ 68.703792][ T4321] ret_from_fork+0x10/0x20 [ 68.704815][ T4321] [ 68.704815][ T4321] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 68.706826][ T4321] __lock_acquire+0x32d4/0x7638 [ 68.707919][ T4321] lock_acquire+0x240/0x77c [ 68.708931][ T4321] __flush_work+0xf8/0x1c0 [ 68.709863][ T4321] __cancel_work_timer+0x3ec/0x548 [ 68.711079][ T4321] cancel_work_sync+0x24/0x38 [ 68.712198][ T4321] hci_request_cancel_all+0xcc/0x2d0 [ 68.713314][ T4321] hci_dev_do_close+0x54/0x1060 [ 68.714407][ T4321] hci_rfkill_set_block+0xdc/0x1d0 [ 68.715550][ T4321] rfkill_set_block+0x18c/0x37c [ 68.716622][ T4321] rfkill_fop_write+0x594/0x750 [ 68.717656][ T4321] vfs_write+0x280/0xb44 [ 68.718645][ T4321] ksys_write+0x15c/0x26c [ 68.719576][ T4321] __arm64_sys_write+0x7c/0x90 [ 68.720738][ T4321] invoke_syscall+0x98/0x2b8 [ 68.721811][ T4321] el0_svc_common+0x138/0x258 [ 68.722801][ T4321] do_el0_svc+0x58/0x14c [ 68.723761][ T4321] el0_svc+0x7c/0x1f0 [ 68.724648][ T4321] el0t_64_sync_handler+0x84/0xe4 [ 68.725756][ T4321] el0t_64_sync+0x1a0/0x1a4 [ 68.726827][ T4321] [ 68.726827][ T4321] other info that might help us debug this: [ 68.726827][ T4321] [ 68.728797][ T4321] Chain exists of: [ 68.728797][ T4321] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 68.728797][ T4321] [ 68.732067][ T4321] Possible unsafe locking scenario: [ 68.732067][ T4321] [ 68.733586][ T4321] CPU0 CPU1 [ 68.734656][ T4321] ---- ---- [ 68.735670][ T4321] lock(rfkill_global_mutex); [ 68.736633][ T4321] lock(&data->open_mutex); [ 68.737993][ T4321] lock(rfkill_global_mutex); [ 68.739420][ T4321] lock((work_completion)(&hdev->bg_scan_update)); [ 68.740825][ T4321] [ 68.740825][ T4321] *** DEADLOCK *** [ 68.740825][ T4321] [ 68.742345][ T4321] 1 lock held by syz.0.15/4321: [ 68.743321][ T4321] #0: ffff800016f25fe8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x250/0x750 [ 68.745324][ T4321] [ 68.745324][ T4321] stack backtrace: [ 68.746511][ T4321] CPU: 1 PID: 4321 Comm: syz.0.15 Not tainted 5.15.173-syzkaller #0 [ 68.748040][ T4321] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 68.750025][ T4321] Call trace: [ 68.750662][ T4321] dump_backtrace+0x0/0x530 [ 68.751634][ T4321] show_stack+0x2c/0x3c [ 68.752426][ T4321] dump_stack_lvl+0x108/0x170 [ 68.753380][ T4321] dump_stack+0x1c/0x58 [ 68.754203][ T4321] print_circular_bug+0x150/0x1b8 [ 68.755303][ T4321] check_noncircular+0x2cc/0x378 [ 68.756263][ T4321] __lock_acquire+0x32d4/0x7638 [ 68.757282][ T4321] lock_acquire+0x240/0x77c [ 68.758184][ T4321] __flush_work+0xf8/0x1c0 [ 68.759078][ T4321] __cancel_work_timer+0x3ec/0x548 [ 68.760177][ T4321] cancel_work_sync+0x24/0x38 [ 68.761098][ T4321] hci_request_cancel_all+0xcc/0x2d0 [ 68.762242][ T4321] hci_dev_do_close+0x54/0x1060 [ 68.763335][ T4321] hci_rfkill_set_block+0xdc/0x1d0 [ 68.764317][ T4321] rfkill_set_block+0x18c/0x37c [ 68.765242][ T4321] rfkill_fop_write+0x594/0x750 [ 68.766116][ T4321] vfs_write+0x280/0xb44 [ 68.766984][ T4321] ksys_write+0x15c/0x26c [ 68.767901][ T4321] __arm64_sys_write+0x7c/0x90 [ 68.768930][ T4321] invoke_syscall+0x98/0x2b8 [ 68.769854][ T4321] el0_svc_common+0x138/0x258 [ 68.770888][ T4321] do_el0_svc+0x58/0x14c [ 68.771729][ T4321] el0_svc+0x7c/0x1f0 [ 68.772501][ T4321] el0t_64_sync_handler+0x84/0xe4 [ 68.773590][ T4321] el0t_64_sync+0x1a0/0x1a4