Warning: Permanently added '10.128.1.133' (ED25519) to the list of known hosts. 1970/01/01 00:00:45 ignoring optional flag "sandboxArg"="0" 1970/01/01 00:00:46 parsed 1 programs syzkaller login: [ 48.632801][ T4021] cgroup: Unknown subsys name 'net' [ 48.895521][ T4021] cgroup: Unknown subsys name 'rlimit' [ 49.248463][ T4021] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS [ 58.004802][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 58.006499][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 58.009094][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 58.021739][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 58.023371][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 58.025513][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 58.734752][ T4085] chnl_net:caif_netlink_parms(): no params data found [ 58.784792][ T4085] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.786684][ T4085] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.788974][ T4085] device bridge_slave_0 entered promiscuous mode [ 58.794989][ T4085] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.796545][ T4085] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.799738][ T4085] device bridge_slave_1 entered promiscuous mode [ 58.818016][ T4085] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.822401][ T4085] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.840438][ T4085] team0: Port device team_slave_0 added [ 58.843533][ T4085] team0: Port device team_slave_1 added [ 58.858054][ T4085] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 58.859591][ T4085] 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. [ 58.865134][ T4085] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 58.869059][ T4085] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 58.871931][ T4085] 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. [ 58.876982][ T4085] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 58.933384][ T4085] device hsr_slave_0 entered promiscuous mode [ 58.971462][ T4085] device hsr_slave_1 entered promiscuous mode [ 59.105960][ T4085] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 59.152346][ T4085] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 59.202910][ T4085] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 59.243115][ T4085] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 59.344226][ T4085] 8021q: adding VLAN 0 to HW filter on device bond0 [ 59.356276][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 59.358637][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 59.362735][ T4085] 8021q: adding VLAN 0 to HW filter on device team0 [ 59.366844][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 59.369064][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 59.373084][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.374701][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 59.377256][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 59.390158][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 59.392309][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 59.394260][ T136] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.395745][ T136] bridge0: port 2(bridge_slave_1) entered forwarding state [ 59.397688][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 59.404588][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 59.411245][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 59.413744][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 59.417875][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 59.424659][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 59.427139][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 59.440308][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 59.442539][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 59.447544][ T4085] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 59.450661][ T4085] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 59.453067][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 59.456074][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 59.530719][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 59.532485][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 59.537101][ T4085] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 59.552219][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 59.564760][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 59.567355][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 59.569383][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 59.574073][ T4085] device veth0_vlan entered promiscuous mode [ 59.581385][ T4085] device veth1_vlan entered promiscuous mode [ 59.598076][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 59.602014][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 59.604433][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 59.609326][ T4085] device veth0_macvtap entered promiscuous mode [ 59.613993][ T4085] device veth1_macvtap entered promiscuous mode [ 59.627246][ T4085] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 59.628953][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 59.633922][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 59.644752][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 59.649174][ T4085] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 59.655606][ T4085] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.659211][ T4085] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.661632][ T4085] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.663411][ T4085] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.667447][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 59.669725][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready 1970/01/01 00:00:59 executed programs: 0 [ 59.882019][ T4108] chnl_net:caif_netlink_parms(): no params data found [ 59.924030][ T4108] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.925773][ T4108] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.927870][ T4108] device bridge_slave_0 entered promiscuous mode [ 59.931564][ T4108] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.933094][ T4108] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.935608][ T4108] device bridge_slave_1 entered promiscuous mode [ 59.965297][ T4108] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.969236][ T4108] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.985960][ T4108] team0: Port device team_slave_0 added [ 59.988817][ T4108] team0: Port device team_slave_1 added [ 60.003043][ T4108] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 60.004525][ T4108] 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. [ 60.009628][ T4108] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 60.014393][ T4108] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 60.015829][ T4108] 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. [ 60.021676][ T4108] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 60.072189][ T4108] device hsr_slave_0 entered promiscuous mode [ 60.110235][ T4108] device hsr_slave_1 entered promiscuous mode [ 60.160457][ T4108] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 60.162215][ T4108] Cannot create hsr debugfs directory [ 60.221993][ T4108] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 61.860914][ T4101] Bluetooth: hci0: command 0x0409 tx timeout [ 63.177575][ T4108] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 63.940462][ T4027] Bluetooth: hci0: command 0x041b tx timeout [ 65.557727][ T4108] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 65.644206][ T4108] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 65.926057][ T4108] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 65.965522][ T4108] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 66.001734][ T4108] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 66.029824][ T7] Bluetooth: hci0: command 0x040f tx timeout [ 66.052627][ T4108] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 66.183992][ T4108] 8021q: adding VLAN 0 to HW filter on device bond0 [ 66.196196][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 66.198166][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 66.205036][ T4108] 8021q: adding VLAN 0 to HW filter on device team0 [ 66.213116][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 66.215415][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 66.220314][ T148] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.221811][ T148] bridge0: port 1(bridge_slave_0) entered forwarding state [ 66.224384][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 66.232206][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 66.234330][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 66.240764][ T148] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.242299][ T148] bridge0: port 2(bridge_slave_1) entered forwarding state [ 66.253488][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 66.258187][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 66.272188][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 66.275288][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 66.284782][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 66.286899][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 66.289357][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 66.298987][ T4108] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 66.303934][ T4108] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 66.307073][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 66.309478][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 66.313756][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 66.316038][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 66.326284][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 66.400609][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 66.402276][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 66.408309][ T4108] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 66.422340][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 66.424710][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 66.438886][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 66.442915][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 66.445261][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 66.447274][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 66.454725][ T4108] device veth0_vlan entered promiscuous mode [ 66.465157][ T4108] device veth1_vlan entered promiscuous mode [ 66.484450][ T397] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 66.487018][ T397] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 66.489114][ T397] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 66.492452][ T397] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 66.496842][ T4108] device veth0_macvtap entered promiscuous mode [ 66.503049][ T4108] device veth1_macvtap entered promiscuous mode [ 66.512088][ T4108] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 66.514336][ T4108] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 66.517287][ T4108] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 66.518827][ T397] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 66.524296][ T397] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 66.526358][ T397] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 66.528621][ T397] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 66.533977][ T4108] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 66.536030][ T4108] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 66.538739][ T4108] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 66.540965][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 66.543223][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 66.547519][ T4108] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.549536][ T4108] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.551470][ T4108] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.553399][ T4108] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.598421][ T397] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 66.601197][ T397] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 66.610116][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 66.618701][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 66.621128][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 66.623536][ T397] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 66.732980][ T4121] [ 66.733478][ T4121] ====================================================== [ 66.734879][ T4121] WARNING: possible circular locking dependency detected [ 66.736234][ T4121] 5.15.169-syzkaller #0 Not tainted [ 66.737211][ T4121] ------------------------------------------------------ [ 66.738588][ T4121] syz.0.15/4121 is trying to acquire lock: [ 66.739745][ T4121] ffff0000d6afcc28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xd0/0x1c0 [ 66.741953][ T4121] [ 66.741953][ T4121] but task is already holding lock: [ 66.743542][ T4121] ffff800016e66da8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x250/0x750 [ 66.745518][ T4121] [ 66.745518][ T4121] which lock already depends on the new lock. [ 66.745518][ T4121] [ 66.747847][ T4121] [ 66.747847][ T4121] the existing dependency chain (in reverse order) is: [ 66.749702][ T4121] [ 66.749702][ T4121] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 66.751451][ T4121] __mutex_lock_common+0x194/0x2154 [ 66.752642][ T4121] mutex_lock_nested+0xa4/0xf8 [ 66.753835][ T4121] rfkill_register+0x44/0x7a4 [ 66.754938][ T4121] hci_register_dev+0x3e0/0x880 [ 66.755991][ T4121] vhci_create_device+0x2c4/0x568 [ 66.757240][ T4121] vhci_write+0x318/0x3b8 [ 66.758352][ T4121] vfs_write+0x884/0xb44 [ 66.759397][ T4121] ksys_write+0x15c/0x26c [ 66.760320][ T4121] __arm64_sys_write+0x7c/0x90 [ 66.761508][ T4121] invoke_syscall+0x98/0x2b8 [ 66.762638][ T4121] el0_svc_common+0x138/0x258 [ 66.763770][ T4121] do_el0_svc+0x58/0x14c [ 66.764873][ T4121] el0_svc+0x7c/0x1f0 [ 66.765869][ T4121] el0t_64_sync_handler+0x84/0xe4 [ 66.767046][ T4121] el0t_64_sync+0x1a0/0x1a4 [ 66.768302][ T4121] [ 66.768302][ T4121] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 66.769963][ T4121] __mutex_lock_common+0x194/0x2154 [ 66.771133][ T4121] mutex_lock_nested+0xa4/0xf8 [ 66.772242][ T4121] vhci_send_frame+0x8c/0x10c [ 66.773339][ T4121] hci_send_frame+0x194/0x2f0 [ 66.774399][ T4121] hci_tx_work+0x9ac/0x16cc [ 66.775524][ T4121] process_one_work+0x790/0x11b8 [ 66.776810][ T4121] worker_thread+0x910/0x1034 [ 66.777962][ T4121] kthread+0x37c/0x45c [ 66.778900][ T4121] ret_from_fork+0x10/0x20 [ 66.779942][ T4121] [ 66.779942][ T4121] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 66.781991][ T4121] __flush_work+0xf8/0x1c0 [ 66.783107][ T4121] flush_work+0x24/0x38 [ 66.784146][ T4121] hci_dev_do_close+0x16c/0x1060 [ 66.785288][ T4121] hci_unregister_dev+0x248/0x4d4 [ 66.786524][ T4121] vhci_release+0x74/0xc4 [ 66.787586][ T4121] __fput+0x1c4/0x800 [ 66.788535][ T4121] ____fput+0x20/0x30 [ 66.789309][ T4121] task_work_run+0x130/0x1e4 [ 66.790400][ T4121] do_exit+0x670/0x20bc [ 66.791343][ T4121] do_group_exit+0x110/0x268 [ 66.792551][ T4121] get_signal+0x634/0x1550 [ 66.793591][ T4121] do_notify_resume+0x3d0/0x32b8 [ 66.794820][ T4121] el0_svc+0xfc/0x1f0 [ 66.795813][ T4121] el0t_64_sync_handler+0x84/0xe4 [ 66.797127][ T4121] el0t_64_sync+0x1a0/0x1a4 [ 66.798218][ T4121] [ 66.798218][ T4121] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 66.799884][ T4121] __mutex_lock_common+0x194/0x2154 [ 66.801129][ T4121] mutex_lock_nested+0xa4/0xf8 [ 66.802222][ T4121] bg_scan_update+0x9c/0x470 [ 66.803244][ T4121] process_one_work+0x790/0x11b8 [ 66.804444][ T4121] worker_thread+0x910/0x1034 [ 66.805577][ T4121] kthread+0x37c/0x45c [ 66.806486][ T4121] ret_from_fork+0x10/0x20 [ 66.807623][ T4121] [ 66.807623][ T4121] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 66.809747][ T4121] __lock_acquire+0x32d4/0x7638 [ 66.810845][ T4121] lock_acquire+0x240/0x77c [ 66.811921][ T4121] __flush_work+0xf8/0x1c0 [ 66.812910][ T4121] __cancel_work_timer+0x3ec/0x548 [ 66.814105][ T4121] cancel_work_sync+0x24/0x38 [ 66.815197][ T4121] hci_request_cancel_all+0xcc/0x2d0 [ 66.816492][ T4121] hci_dev_do_close+0x54/0x1060 [ 66.817583][ T4121] hci_rfkill_set_block+0xdc/0x1d0 [ 66.818864][ T4121] rfkill_set_block+0x18c/0x37c [ 66.820066][ T4121] rfkill_fop_write+0x594/0x750 [ 66.821183][ T4121] vfs_write+0x280/0xb44 [ 66.822309][ T4121] ksys_write+0x15c/0x26c [ 66.823380][ T4121] __arm64_sys_write+0x7c/0x90 [ 66.824496][ T4121] invoke_syscall+0x98/0x2b8 [ 66.825771][ T4121] el0_svc_common+0x138/0x258 [ 66.826950][ T4121] do_el0_svc+0x58/0x14c [ 66.827985][ T4121] el0_svc+0x7c/0x1f0 [ 66.829048][ T4121] el0t_64_sync_handler+0x84/0xe4 [ 66.830232][ T4121] el0t_64_sync+0x1a0/0x1a4 [ 66.831171][ T4121] [ 66.831171][ T4121] other info that might help us debug this: [ 66.831171][ T4121] [ 66.833480][ T4121] Chain exists of: [ 66.833480][ T4121] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 66.833480][ T4121] [ 66.836760][ T4121] Possible unsafe locking scenario: [ 66.836760][ T4121] [ 66.838418][ T4121] CPU0 CPU1 [ 66.839623][ T4121] ---- ---- [ 66.840675][ T4121] lock(rfkill_global_mutex); [ 66.841668][ T4121] lock(&data->open_mutex); [ 66.843193][ T4121] lock(rfkill_global_mutex); [ 66.844813][ T4121] lock((work_completion)(&hdev->bg_scan_update)); [ 66.846245][ T4121] [ 66.846245][ T4121] *** DEADLOCK *** [ 66.846245][ T4121] [ 66.847907][ T4121] 1 lock held by syz.0.15/4121: [ 66.848914][ T4121] #0: ffff800016e66da8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x250/0x750 [ 66.851217][ T4121] [ 66.851217][ T4121] stack backtrace: [ 66.852514][ T4121] CPU: 1 PID: 4121 Comm: syz.0.15 Not tainted 5.15.169-syzkaller #0 [ 66.854259][ T4121] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 66.856364][ T4121] Call trace: [ 66.857112][ T4121] dump_backtrace+0x0/0x530 [ 66.858068][ T4121] show_stack+0x2c/0x3c [ 66.858973][ T4121] dump_stack_lvl+0x108/0x170 [ 66.860025][ T4121] dump_stack+0x1c/0x58 [ 66.860910][ T4121] print_circular_bug+0x150/0x1b8 [ 66.862105][ T4121] check_noncircular+0x2cc/0x378 [ 66.863129][ T4121] __lock_acquire+0x32d4/0x7638 [ 66.864113][ T4121] lock_acquire+0x240/0x77c [ 66.865119][ T4121] __flush_work+0xf8/0x1c0 [ 66.866029][ T4121] __cancel_work_timer+0x3ec/0x548 [ 66.867195][ T4121] cancel_work_sync+0x24/0x38 [ 66.868280][ T4121] hci_request_cancel_all+0xcc/0x2d0 [ 66.869466][ T4121] hci_dev_do_close+0x54/0x1060 [ 66.870521][ T4121] hci_rfkill_set_block+0xdc/0x1d0 [ 66.871549][ T4121] rfkill_set_block+0x18c/0x37c [ 66.872586][ T4121] rfkill_fop_write+0x594/0x750 [ 66.873618][ T4121] vfs_write+0x280/0xb44 [ 66.874455][ T4121] ksys_write+0x15c/0x26c [ 66.875343][ T4121] __arm64_sys_write+0x7c/0x90 [ 66.876369][ T4121] invoke_syscall+0x98/0x2b8 [ 66.877237][ T4121] el0_svc_common+0x138/0x258 [ 66.878286][ T4121] do_el0_svc+0x58/0x14c [ 66.879184][ T4121] el0_svc+0x7c/0x1f0 [ 66.880192][ T4121] el0t_64_sync_handler+0x84/0xe4 [ 66.881308][ T4121] el0t_64_sync+0x1a0/0x1a4