Warning: Permanently added '10.128.10.35' (ED25519) to the list of known hosts. 1970/01/01 00:00:43 ignoring optional flag "sandboxArg"="0" 1970/01/01 00:00:43 parsed 1 programs syzkaller login: [ 46.149889][ T4024] cgroup: Unknown subsys name 'net' [ 46.411798][ T4024] cgroup: Unknown subsys name 'rlimit' [ 46.773988][ T4024] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS [ 53.097552][ T136] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 53.099162][ T136] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 53.101323][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 53.116311][ T136] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 53.117886][ T136] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 53.119897][ T555] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 53.798934][ T4077] chnl_net:caif_netlink_parms(): no params data found [ 53.832593][ T4077] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.834098][ T4077] bridge0: port 1(bridge_slave_0) entered disabled state [ 53.836234][ T4077] device bridge_slave_0 entered promiscuous mode [ 53.840203][ T4077] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.841755][ T4077] bridge0: port 2(bridge_slave_1) entered disabled state [ 53.843874][ T4077] device bridge_slave_1 entered promiscuous mode [ 53.857667][ T4077] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 53.863421][ T4077] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 53.878452][ T4077] team0: Port device team_slave_0 added [ 53.881356][ T4077] team0: Port device team_slave_1 added [ 53.892388][ T4077] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 53.893933][ T4077] 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. [ 53.899775][ T4077] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 53.903367][ T4077] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 53.904639][ T4077] 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. [ 53.910043][ T4077] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 53.978212][ T4077] device hsr_slave_0 entered promiscuous mode [ 53.996291][ T4077] device hsr_slave_1 entered promiscuous mode [ 54.163725][ T4077] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 54.207609][ T4077] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 54.270015][ T4077] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 54.309644][ T4077] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 54.418297][ T4077] 8021q: adding VLAN 0 to HW filter on device bond0 [ 54.424603][ T555] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 54.426698][ T555] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 54.432729][ T4077] 8021q: adding VLAN 0 to HW filter on device team0 [ 54.439079][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 54.441162][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 54.443325][ T154] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.444763][ T154] bridge0: port 1(bridge_slave_0) entered forwarding state [ 54.448084][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 54.456943][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 54.459367][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 54.461576][ T154] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.463028][ T154] bridge0: port 2(bridge_slave_1) entered forwarding state [ 54.465041][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 54.478440][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 54.480958][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 54.483491][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 54.485724][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 54.489503][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 54.497084][ T4077] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 54.499192][ T4077] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 54.502409][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 54.504347][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 54.507782][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 54.510401][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 54.512473][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 54.519069][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 54.580725][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 54.582460][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 54.589537][ T4077] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 54.603670][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 54.605766][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 54.619146][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 54.621185][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 54.623429][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 54.625361][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 54.628854][ T4077] device veth0_vlan entered promiscuous mode [ 54.634266][ T4077] device veth1_vlan entered promiscuous mode [ 54.648520][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 54.650665][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 54.652877][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 54.658524][ T4077] device veth0_macvtap entered promiscuous mode [ 54.662311][ T4077] device veth1_macvtap entered promiscuous mode [ 54.672639][ T4077] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 54.674333][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 54.677267][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 54.680047][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 54.684250][ T4077] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 54.690033][ T4077] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.691951][ T4077] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.693682][ T4077] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.695413][ T4077] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.699767][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 54.701978][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready 1970/01/01 00:00:55 executed programs: 0 [ 55.491940][ T148] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 55.555968][ T4100] chnl_net:caif_netlink_parms(): no params data found [ 55.585580][ T4100] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.587804][ T4100] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.590363][ T4100] device bridge_slave_0 entered promiscuous mode [ 55.593369][ T4100] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.594981][ T4100] bridge0: port 2(bridge_slave_1) entered disabled state [ 55.597574][ T4100] device bridge_slave_1 entered promiscuous mode [ 55.610905][ T4100] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 55.614218][ T4100] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 55.627447][ T4100] team0: Port device team_slave_0 added [ 55.630079][ T4100] team0: Port device team_slave_1 added [ 55.644988][ T4100] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 55.646533][ T4100] 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. [ 55.651749][ T4100] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 55.655242][ T4100] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 55.656663][ T4100] 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. [ 55.661767][ T4100] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 55.718103][ T4100] device hsr_slave_0 entered promiscuous mode [ 55.756207][ T4100] device hsr_slave_1 entered promiscuous mode [ 55.796049][ T4100] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 55.798081][ T4100] Cannot create hsr debugfs directory [ 57.236583][ T3606] Bluetooth: hci0: command 0x0409 tx timeout [ 57.831684][ T148] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 59.316360][ T4044] Bluetooth: hci0: command 0x041b tx timeout [ 60.421449][ T148] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 60.465557][ T148] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 61.395990][ T13] Bluetooth: hci0: command 0x040f tx timeout [ 61.520649][ T4100] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 61.580197][ T4100] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 61.617706][ T4100] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 61.658068][ T4100] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 61.738485][ T4100] 8021q: adding VLAN 0 to HW filter on device bond0 [ 61.744492][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 61.747552][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 61.751744][ T4100] 8021q: adding VLAN 0 to HW filter on device team0 [ 61.758528][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 61.760846][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 61.762818][ T136] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.764228][ T136] bridge0: port 1(bridge_slave_0) entered forwarding state [ 61.766994][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 61.769065][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 61.771018][ T136] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.772509][ T136] bridge0: port 2(bridge_slave_1) entered forwarding state [ 61.774295][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 61.779315][ T1865] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 61.789191][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 61.791462][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 61.794235][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 61.796696][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 61.798937][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 61.801159][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 61.804943][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 61.808099][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 61.812319][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 61.814387][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 61.818652][ T4100] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 61.884711][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 61.886813][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 61.894021][ T4100] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 61.904065][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 61.907086][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 61.916966][ T1865] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 61.919182][ T1865] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 61.921359][ T1865] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 61.923307][ T1865] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 61.965778][ T4100] device veth0_vlan entered promiscuous mode [ 61.971228][ T4100] device veth1_vlan entered promiscuous mode [ 61.983623][ T1865] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 61.985776][ T1865] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 61.988361][ T1865] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 61.990406][ T1865] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 61.994098][ T4100] device veth0_macvtap entered promiscuous mode [ 61.998835][ T4100] device veth1_macvtap entered promiscuous mode [ 62.008595][ T4100] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 62.010901][ T4100] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 62.013887][ T4100] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 62.015701][ T1865] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 62.019114][ T1865] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 62.021224][ T1865] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 62.023292][ T1865] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 62.027506][ T4100] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 62.029581][ T4100] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 62.032454][ T4100] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 62.034045][ T1865] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 62.037804][ T1865] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 62.041914][ T4100] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 62.043648][ T4100] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 62.045363][ T4100] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 62.047855][ T4100] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 62.080055][ T136] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 62.088773][ T136] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 62.093003][ T1865] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 62.096914][ T1865] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 62.098580][ T1865] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 62.101008][ T1865] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 62.251707][ T4150] [ 62.252260][ T4150] ====================================================== [ 62.253734][ T4150] WARNING: possible circular locking dependency detected [ 62.255122][ T4150] 5.15.173-syzkaller #0 Not tainted [ 62.256131][ T4150] ------------------------------------------------------ [ 62.257544][ T4150] syz.0.15/4150 is trying to acquire lock: [ 62.258724][ T4150] ffff0000d59dcc28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xd0/0x1c0 [ 62.260855][ T4150] [ 62.260855][ T4150] but task is already holding lock: [ 62.262340][ T4150] ffff800016f25fe8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x250/0x750 [ 62.264230][ T4150] [ 62.264230][ T4150] which lock already depends on the new lock. [ 62.264230][ T4150] [ 62.266374][ T4150] [ 62.266374][ T4150] the existing dependency chain (in reverse order) is: [ 62.268176][ T4150] [ 62.268176][ T4150] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 62.269775][ T4150] __mutex_lock_common+0x194/0x2154 [ 62.270970][ T4150] mutex_lock_nested+0xa4/0xf8 [ 62.271991][ T4150] rfkill_register+0x44/0x7a4 [ 62.273109][ T4150] hci_register_dev+0x3e0/0x880 [ 62.274197][ T4150] vhci_create_device+0x2c4/0x568 [ 62.275380][ T4150] vhci_write+0x318/0x3b8 [ 62.276435][ T4150] vfs_write+0x884/0xb44 [ 62.277432][ T4150] ksys_write+0x15c/0x26c [ 62.278355][ T4150] __arm64_sys_write+0x7c/0x90 [ 62.279477][ T4150] invoke_syscall+0x98/0x2b8 [ 62.280585][ T4150] el0_svc_common+0x138/0x258 [ 62.281691][ T4150] do_el0_svc+0x58/0x14c [ 62.282689][ T4150] el0_svc+0x7c/0x1f0 [ 62.283534][ T4150] el0t_64_sync_handler+0x84/0xe4 [ 62.284642][ T4150] el0t_64_sync+0x1a0/0x1a4 [ 62.285578][ T4150] [ 62.285578][ T4150] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 62.287146][ T4150] __mutex_lock_common+0x194/0x2154 [ 62.288316][ T4150] mutex_lock_nested+0xa4/0xf8 [ 62.289403][ T4150] vhci_send_frame+0x8c/0x10c [ 62.290451][ T4150] hci_send_frame+0x194/0x2f0 [ 62.291532][ T4150] hci_tx_work+0x9ac/0x16cc [ 62.292499][ T4150] process_one_work+0x790/0x11b8 [ 62.293549][ T4150] worker_thread+0x910/0x1034 [ 62.294598][ T4150] kthread+0x37c/0x45c [ 62.295475][ T4150] ret_from_fork+0x10/0x20 [ 62.296469][ T4150] [ 62.296469][ T4150] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 62.298262][ T4150] __flush_work+0xf8/0x1c0 [ 62.299332][ T4150] flush_work+0x24/0x38 [ 62.300243][ T4150] hci_dev_do_close+0x16c/0x1060 [ 62.301337][ T4150] hci_unregister_dev+0x248/0x4d4 [ 62.302544][ T4150] vhci_release+0x74/0xc4 [ 62.303506][ T4150] __fput+0x1c4/0x800 [ 62.304335][ T4150] ____fput+0x20/0x30 [ 62.305181][ T4150] task_work_run+0x130/0x1e4 [ 62.306222][ T4150] do_exit+0x670/0x20bc [ 62.307132][ T4150] do_group_exit+0x110/0x268 [ 62.308118][ T4150] get_signal+0x634/0x1550 [ 62.309090][ T4150] do_notify_resume+0x3d0/0x32b8 [ 62.310182][ T4150] el0_svc+0xfc/0x1f0 [ 62.311112][ T4150] el0t_64_sync_handler+0x84/0xe4 [ 62.312228][ T4150] el0t_64_sync+0x1a0/0x1a4 [ 62.313209][ T4150] [ 62.313209][ T4150] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 62.314933][ T4150] __mutex_lock_common+0x194/0x2154 [ 62.316044][ T4150] mutex_lock_nested+0xa4/0xf8 [ 62.317128][ T4150] bg_scan_update+0x9c/0x470 [ 62.318231][ T4150] process_one_work+0x790/0x11b8 [ 62.319364][ T4150] worker_thread+0x910/0x1034 [ 62.320438][ T4150] kthread+0x37c/0x45c [ 62.321368][ T4150] ret_from_fork+0x10/0x20 [ 62.322366][ T4150] [ 62.322366][ T4150] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 62.324253][ T4150] __lock_acquire+0x32d4/0x7638 [ 62.325435][ T4150] lock_acquire+0x240/0x77c [ 62.326477][ T4150] __flush_work+0xf8/0x1c0 [ 62.327399][ T4150] __cancel_work_timer+0x3ec/0x548 [ 62.328483][ T4150] cancel_work_sync+0x24/0x38 [ 62.329512][ T4150] hci_request_cancel_all+0xcc/0x2d0 [ 62.330635][ T4150] hci_dev_do_close+0x54/0x1060 [ 62.331739][ T4150] hci_rfkill_set_block+0xdc/0x1d0 [ 62.332789][ T4150] rfkill_set_block+0x18c/0x37c [ 62.333917][ T4150] rfkill_fop_write+0x594/0x750 [ 62.335005][ T4150] vfs_write+0x280/0xb44 [ 62.336031][ T4150] ksys_write+0x15c/0x26c [ 62.336954][ T4150] __arm64_sys_write+0x7c/0x90 [ 62.337960][ T4150] invoke_syscall+0x98/0x2b8 [ 62.338959][ T4150] el0_svc_common+0x138/0x258 [ 62.340042][ T4150] do_el0_svc+0x58/0x14c [ 62.341091][ T4150] el0_svc+0x7c/0x1f0 [ 62.342040][ T4150] el0t_64_sync_handler+0x84/0xe4 [ 62.343144][ T4150] el0t_64_sync+0x1a0/0x1a4 [ 62.344193][ T4150] [ 62.344193][ T4150] other info that might help us debug this: [ 62.344193][ T4150] [ 62.346280][ T4150] Chain exists of: [ 62.346280][ T4150] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 62.346280][ T4150] [ 62.349511][ T4150] Possible unsafe locking scenario: [ 62.349511][ T4150] [ 62.351128][ T4150] CPU0 CPU1 [ 62.352230][ T4150] ---- ---- [ 62.353329][ T4150] lock(rfkill_global_mutex); [ 62.354313][ T4150] lock(&data->open_mutex); [ 62.355818][ T4150] lock(rfkill_global_mutex); [ 62.357297][ T4150] lock((work_completion)(&hdev->bg_scan_update)); [ 62.358636][ T4150] [ 62.358636][ T4150] *** DEADLOCK *** [ 62.358636][ T4150] [ 62.360280][ T4150] 1 lock held by syz.0.15/4150: [ 62.361252][ T4150] #0: ffff800016f25fe8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x250/0x750 [ 62.363356][ T4150] [ 62.363356][ T4150] stack backtrace: [ 62.364487][ T4150] CPU: 1 PID: 4150 Comm: syz.0.15 Not tainted 5.15.173-syzkaller #0 [ 62.366182][ T4150] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 62.368286][ T4150] Call trace: [ 62.368939][ T4150] dump_backtrace+0x0/0x530 [ 62.369864][ T4150] show_stack+0x2c/0x3c [ 62.370502][ T4150] dump_stack_lvl+0x108/0x170 [ 62.371222][ T4150] dump_stack+0x1c/0x58 [ 62.371871][ T4150] print_circular_bug+0x150/0x1b8 [ 62.372652][ T4150] check_noncircular+0x2cc/0x378 [ 62.373416][ T4150] __lock_acquire+0x32d4/0x7638 [ 62.374183][ T4150] lock_acquire+0x240/0x77c [ 62.374886][ T4150] __flush_work+0xf8/0x1c0 [ 62.375561][ T4150] __cancel_work_timer+0x3ec/0x548 [ 62.376346][ T4150] cancel_work_sync+0x24/0x38 [ 62.377073][ T4150] hci_request_cancel_all+0xcc/0x2d0 [ 62.377891][ T4150] hci_dev_do_close+0x54/0x1060 [ 62.378640][ T4150] hci_rfkill_set_block+0xdc/0x1d0 [ 62.379426][ T4150] rfkill_set_block+0x18c/0x37c [ 62.380177][ T4150] rfkill_fop_write+0x594/0x750 [ 62.381014][ T4150] vfs_write+0x280/0xb44 [ 62.381871][ T4150] ksys_write+0x15c/0x26c [ 62.382875][ T4150] __arm64_sys_write+0x7c/0x90 [ 62.383858][ T4150] invoke_syscall+0x98/0x2b8 [ 62.384750][ T4150] el0_svc_common+0x138/0x258 [ 62.385858][ T4150] do_el0_svc+0x58/0x14c [ 62.387049][ T4150] el0_svc+0x7c/0x1f0 [ 62.388049][ T4150] el0t_64_sync_handler+0x84/0xe4 [ 62.389072][ T4150] el0t_64_sync+0x1a0/0x1a4