Warning: Permanently added '10.128.10.45' (ED25519) to the list of known hosts. 2025/08/09 12:58:38 ignoring optional flag "sandboxArg"="0" 2025/08/09 12:58:39 parsed 1 programs [ 53.641449][ T4188] cgroup: Unknown subsys name 'net' [ 53.774499][ T4188] cgroup: Unknown subsys name 'rlimit' [ 54.976050][ T4188] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 56.423505][ T4210] chnl_net:caif_netlink_parms(): no params data found [ 56.465045][ T4210] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.472683][ T4210] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.481095][ T4210] device bridge_slave_0 entered promiscuous mode [ 56.491612][ T4210] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.498709][ T4210] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.507171][ T4210] device bridge_slave_1 entered promiscuous mode [ 56.526236][ T4210] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 56.538797][ T4210] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 56.558277][ T4210] team0: Port device team_slave_0 added [ 56.565597][ T4210] team0: Port device team_slave_1 added [ 56.586435][ T4210] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 56.593431][ T4210] 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. [ 56.620209][ T4210] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 56.632958][ T4210] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 56.640555][ T4210] 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. [ 56.666709][ T4210] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 56.703882][ T4210] device hsr_slave_0 entered promiscuous mode [ 56.711446][ T4210] device hsr_slave_1 entered promiscuous mode [ 56.829160][ T4210] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 56.840895][ T4210] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 56.850418][ T4210] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 56.862078][ T4210] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 56.892536][ T4210] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.899762][ T4210] bridge0: port 2(bridge_slave_1) entered forwarding state [ 56.907625][ T4210] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.914747][ T4210] bridge0: port 1(bridge_slave_0) entered forwarding state [ 56.972243][ T4210] 8021q: adding VLAN 0 to HW filter on device bond0 [ 56.986710][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 56.998332][ T144] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.010742][ T144] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.018914][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 57.035114][ T4210] 8021q: adding VLAN 0 to HW filter on device team0 [ 57.047734][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 57.056348][ T144] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.063433][ T144] bridge0: port 1(bridge_slave_0) entered forwarding state [ 57.078158][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 57.087559][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.094648][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 57.114589][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 57.135905][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 57.147635][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 57.156436][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 57.166882][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 57.178635][ T4210] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 57.296221][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 57.306293][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 57.321996][ T4210] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 57.344578][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 57.368505][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 57.381300][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 57.389332][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 57.403382][ T4210] device veth0_vlan entered promiscuous mode [ 57.416644][ T4210] device veth1_vlan entered promiscuous mode [ 57.441537][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 57.453042][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 57.464496][ T4210] device veth0_macvtap entered promiscuous mode [ 57.476227][ T4210] device veth1_macvtap entered promiscuous mode [ 57.493933][ T4210] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 57.502619][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 57.511849][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 57.520637][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 57.529382][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 57.542196][ T4210] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 57.550554][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 57.559534][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 57.572600][ T4210] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 57.582674][ T4210] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 57.592988][ T4210] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 57.602466][ T4210] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 57.849177][ T156] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 57.893453][ T154] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 57.903057][ T154] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 57.917073][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 57.927268][ T144] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 57.935262][ T144] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 57.944168][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 60.385189][ T156] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 62.913815][ T156] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 62.985875][ T156] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 2025/08/09 12:58:51 executed programs: 0 [ 64.027629][ T156] device hsr_slave_0 left promiscuous mode [ 64.039993][ T156] device hsr_slave_1 left promiscuous mode [ 64.053100][ T156] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 64.069820][ T156] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 64.091243][ T156] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 64.098807][ T156] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 64.120968][ T156] device bridge_slave_1 left promiscuous mode [ 64.128035][ T156] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.163102][ T156] device bridge_slave_0 left promiscuous mode [ 64.169316][ T156] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.187640][ T156] device veth1_macvtap left promiscuous mode [ 64.194805][ T156] device veth0_macvtap left promiscuous mode [ 64.200964][ T156] device veth1_vlan left promiscuous mode [ 64.206794][ T156] device veth0_vlan left promiscuous mode [ 64.323088][ T156] team0 (unregistering): Port device team_slave_1 removed [ 64.334470][ T156] team0 (unregistering): Port device team_slave_0 removed [ 64.347100][ T156] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 64.359597][ T156] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 64.403696][ T156] bond0 (unregistering): Released all slaves [ 64.595258][ T4330] chnl_net:caif_netlink_parms(): no params data found [ 64.646809][ T4330] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.654440][ T4330] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.663066][ T4330] device bridge_slave_0 entered promiscuous mode [ 64.672661][ T4330] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.679968][ T4330] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.688004][ T4330] device bridge_slave_1 entered promiscuous mode [ 64.712294][ T4330] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 64.723557][ T4330] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 64.757982][ T4330] team0: Port device team_slave_0 added [ 64.766328][ T4330] team0: Port device team_slave_1 added [ 64.788011][ T4330] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 64.795153][ T4330] 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. [ 64.821206][ T4330] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 64.833392][ T4330] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 64.840500][ T4330] 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. [ 64.866423][ T4330] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 64.928480][ T4330] device hsr_slave_0 entered promiscuous mode [ 64.936997][ T4330] device hsr_slave_1 entered promiscuous mode [ 65.522612][ T4330] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 65.554794][ T4330] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 65.572393][ T4330] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 65.585906][ T4330] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 65.682924][ T4330] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.700720][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 65.708993][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 65.721908][ T4330] 8021q: adding VLAN 0 to HW filter on device team0 [ 65.743342][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 65.760354][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 65.771352][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.778424][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.787297][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 65.800525][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 65.809558][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 65.831457][ T144] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.838533][ T144] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.866235][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 65.875231][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 65.897624][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 65.908477][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 65.932129][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 65.950745][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 65.971001][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 65.990067][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 66.010108][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 66.021331][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 66.039063][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 66.050567][ T4330] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 66.180791][ T23] Bluetooth: hci0: command 0x0409 tx timeout [ 66.251016][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 66.258504][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 66.274953][ T4330] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 66.308289][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 66.320525][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 66.344476][ T4330] device veth0_vlan entered promiscuous mode [ 66.357951][ T4330] device veth1_vlan entered promiscuous mode [ 66.371125][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 66.390826][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 66.400722][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 66.423005][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 66.431925][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 66.440884][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 66.464554][ T4330] device veth0_macvtap entered promiscuous mode [ 66.473304][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 66.483174][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 66.496865][ T4330] device veth1_macvtap entered promiscuous mode [ 66.505577][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 66.515511][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 66.533629][ T4330] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 66.543021][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 66.552640][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 66.567496][ T4330] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 66.575837][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 66.587712][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 66.600678][ T4330] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.609389][ T4330] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.621038][ T4330] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.630720][ T4330] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.739134][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 66.750808][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 66.770200][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 66.797067][ T154] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 66.810995][ T154] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 66.826543][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 67.034804][ T4442] [ 67.037166][ T4442] ====================================================== [ 67.044286][ T4442] WARNING: possible circular locking dependency detected [ 67.051311][ T4442] 5.15.189-syzkaller #0 Not tainted [ 67.056501][ T4442] ------------------------------------------------------ [ 67.063517][ T4442] syz.0.17/4442 is trying to acquire lock: [ 67.069408][ T4442] ffff888021a68c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xc1/0x1b0 [ 67.080472][ T4442] [ 67.080472][ T4442] but task is already holding lock: [ 67.087830][ T4442] ffffffff8d4be228 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 67.097487][ T4442] [ 67.097487][ T4442] which lock already depends on the new lock. [ 67.097487][ T4442] [ 67.107884][ T4442] [ 67.107884][ T4442] the existing dependency chain (in reverse order) is: [ 67.116893][ T4442] [ 67.116893][ T4442] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 67.124884][ T4442] __mutex_lock_common+0x1eb/0x2390 [ 67.130609][ T4442] mutex_lock_nested+0x17/0x20 [ 67.135897][ T4442] rfkill_register+0x33/0x8a0 [ 67.141093][ T4442] hci_register_dev+0x452/0x970 [ 67.146466][ T4442] vhci_create_device+0x32c/0x5c0 [ 67.152013][ T4442] vhci_write+0x391/0x450 [ 67.156863][ T4442] vfs_write+0x712/0xd00 [ 67.161627][ T4442] ksys_write+0x14d/0x250 [ 67.166471][ T4442] do_syscall_64+0x4c/0xa0 [ 67.171411][ T4442] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 67.177828][ T4442] [ 67.177828][ T4442] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 67.185645][ T4442] __mutex_lock_common+0x1eb/0x2390 [ 67.191374][ T4442] mutex_lock_nested+0x17/0x20 [ 67.196665][ T4442] vhci_send_frame+0x88/0x100 [ 67.201872][ T4442] hci_send_frame+0x1a9/0x2e0 [ 67.207074][ T4442] hci_tx_work+0x9f9/0x1710 [ 67.212099][ T4442] process_one_work+0x863/0x1000 [ 67.217558][ T4442] worker_thread+0xaa8/0x12a0 [ 67.222761][ T4442] kthread+0x436/0x520 [ 67.227347][ T4442] ret_from_fork+0x1f/0x30 [ 67.232286][ T4442] [ 67.232286][ T4442] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 67.241491][ T4442] __flush_work+0xdd/0x1b0 [ 67.246558][ T4442] hci_dev_do_close+0x1e7/0x1030 [ 67.252025][ T4442] hci_unregister_dev+0x2d7/0x580 [ 67.257573][ T4442] vhci_release+0x73/0xc0 [ 67.262427][ T4442] __fput+0x234/0x930 [ 67.266936][ T4442] task_work_run+0x125/0x1a0 [ 67.272049][ T4442] do_exit+0x61e/0x20a0 [ 67.276726][ T4442] do_group_exit+0x12e/0x300 [ 67.281836][ T4442] get_signal+0x6ca/0x12c0 [ 67.286769][ T4442] arch_do_signal_or_restart+0xc1/0x1300 [ 67.292924][ T4442] exit_to_user_mode_loop+0x9e/0x130 [ 67.298733][ T4442] exit_to_user_mode_prepare+0xb1/0x140 [ 67.304803][ T4442] syscall_exit_to_user_mode+0x16/0x40 [ 67.310786][ T4442] do_syscall_64+0x58/0xa0 [ 67.315725][ T4442] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 67.322145][ T4442] [ 67.322145][ T4442] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 67.329787][ T4442] __mutex_lock_common+0x1eb/0x2390 [ 67.335517][ T4442] mutex_lock_nested+0x17/0x20 [ 67.340806][ T4442] bg_scan_update+0x44/0x3b0 [ 67.345924][ T4442] process_one_work+0x863/0x1000 [ 67.351393][ T4442] worker_thread+0xaa8/0x12a0 [ 67.356591][ T4442] kthread+0x436/0x520 [ 67.361222][ T4442] ret_from_fork+0x1f/0x30 [ 67.366159][ T4442] [ 67.366159][ T4442] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 67.375977][ T4442] __lock_acquire+0x2c33/0x7c60 [ 67.381360][ T4442] lock_acquire+0x197/0x3f0 [ 67.386400][ T4442] __flush_work+0xdd/0x1b0 [ 67.391395][ T4442] __cancel_work_timer+0x3ac/0x520 [ 67.397033][ T4442] hci_request_cancel_all+0xcc/0x300 [ 67.402845][ T4442] hci_dev_do_close+0x4e/0x1030 [ 67.408487][ T4442] hci_rfkill_set_block+0x10a/0x190 [ 67.414212][ T4442] rfkill_set_block+0x1c6/0x420 [ 67.419616][ T4442] rfkill_fop_write+0x458/0x560 [ 67.425023][ T4442] vfs_write+0x300/0xd00 [ 67.429788][ T4442] ksys_write+0x14d/0x250 [ 67.434639][ T4442] do_syscall_64+0x4c/0xa0 [ 67.439580][ T4442] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 67.446001][ T4442] [ 67.446001][ T4442] other info that might help us debug this: [ 67.446001][ T4442] [ 67.456222][ T4442] Chain exists of: [ 67.456222][ T4442] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 67.456222][ T4442] [ 67.471947][ T4442] Possible unsafe locking scenario: [ 67.471947][ T4442] [ 67.479396][ T4442] CPU0 CPU1 [ 67.484758][ T4442] ---- ---- [ 67.490133][ T4442] lock(rfkill_global_mutex); [ 67.494893][ T4442] lock(&data->open_mutex); [ 67.502005][ T4442] lock(rfkill_global_mutex); [ 67.509283][ T4442] lock((work_completion)(&hdev->bg_scan_update)); [ 67.515867][ T4442] [ 67.515867][ T4442] *** DEADLOCK *** [ 67.515867][ T4442] [ 67.524004][ T4442] 1 lock held by syz.0.17/4442: [ 67.528844][ T4442] #0: ffffffff8d4be228 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 67.538949][ T4442] [ 67.538949][ T4442] stack backtrace: [ 67.544840][ T4442] CPU: 0 PID: 4442 Comm: syz.0.17 Not tainted 5.15.189-syzkaller #0 [ 67.552813][ T4442] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 67.562964][ T4442] Call Trace: [ 67.566303][ T4442] [ 67.569231][ T4442] dump_stack_lvl+0x168/0x230 [ 67.573950][ T4442] ? load_image+0x3b0/0x3b0 [ 67.578676][ T4442] ? show_regs_print_info+0x20/0x20 [ 67.583974][ T4442] ? print_circular_bug+0x12b/0x1a0 [ 67.589176][ T4442] check_noncircular+0x274/0x310 [ 67.594124][ T4442] ? add_chain_block+0x940/0x940 [ 67.599075][ T4442] ? lockdep_lock+0xdc/0x1e0 [ 67.603681][ T4442] ? __lock_acquire+0x12d9/0x7c60 [ 67.608722][ T4442] ? mark_lock+0x94/0x320 [ 67.613099][ T4442] __lock_acquire+0x2c33/0x7c60 [ 67.618053][ T4442] ? mark_lock+0x94/0x320 [ 67.622390][ T4442] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 67.628462][ T4442] ? verify_lock_unused+0x140/0x140 [ 67.633683][ T4442] ? asm_sysvec_reschedule_ipi+0x16/0x20 [ 67.639338][ T4442] lock_acquire+0x197/0x3f0 [ 67.643846][ T4442] ? __flush_work+0xc1/0x1b0 [ 67.648440][ T4442] ? __lock_acquire+0x7c60/0x7c60 [ 67.653469][ T4442] ? read_lock_is_recursive+0x10/0x10 [ 67.658848][ T4442] ? start_flush_work+0x776/0x820 [ 67.663875][ T4442] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 67.669773][ T4442] ? _raw_spin_unlock+0x40/0x40 [ 67.674633][ T4442] __flush_work+0xdd/0x1b0 [ 67.679050][ T4442] ? __flush_work+0xc1/0x1b0 [ 67.683639][ T4442] ? flush_work+0x20/0x20 [ 67.687967][ T4442] ? try_to_grab_pending+0xf3/0x7e0 [ 67.693167][ T4442] ? lockdep_hardirqs_off+0x70/0x100 [ 67.698459][ T4442] ? mark_lock+0x94/0x320 [ 67.702795][ T4442] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 67.708783][ T4442] ? lock_chain_count+0x20/0x20 [ 67.713638][ T4442] ? mark_lock+0x94/0x320 [ 67.717969][ T4442] ? __cancel_work_timer+0x331/0x520 [ 67.723272][ T4442] __cancel_work_timer+0x3ac/0x520 [ 67.728383][ T4442] ? cancel_work_sync+0x20/0x20 [ 67.733237][ T4442] ? __cancel_work+0x1f4/0x2d0 [ 67.738002][ T4442] ? lockdep_hardirqs_on+0x94/0x140 [ 67.743200][ T4442] ? __cancel_work+0x26f/0x2d0 [ 67.747963][ T4442] ? cancel_work+0x20/0x20 [ 67.752378][ T4442] ? lock_chain_count+0x20/0x20 [ 67.757236][ T4442] hci_request_cancel_all+0xcc/0x300 [ 67.762527][ T4442] hci_dev_do_close+0x4e/0x1030 [ 67.767491][ T4442] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 67.773397][ T4442] ? _raw_spin_unlock+0x40/0x40 [ 67.778281][ T4442] hci_rfkill_set_block+0x10a/0x190 [ 67.783492][ T4442] ? rcu_lock_release+0x20/0x20 [ 67.788348][ T4442] rfkill_set_block+0x1c6/0x420 [ 67.793206][ T4442] rfkill_fop_write+0x458/0x560 [ 67.798066][ T4442] ? verify_lock_unused+0x140/0x140 [ 67.803293][ T4442] ? rfkill_fop_read+0x4b0/0x4b0 [ 67.808241][ T4442] ? common_file_perm+0x150/0x1c0 [ 67.813271][ T4442] ? fsnotify_perm+0x5d/0x560 [ 67.817961][ T4442] ? security_file_permission+0x75/0xa0 [ 67.823516][ T4442] ? rfkill_fop_read+0x4b0/0x4b0 [ 67.828479][ T4442] vfs_write+0x300/0xd00 [ 67.832732][ T4442] ? file_end_write+0x250/0x250 [ 67.837598][ T4442] ? __context_tracking_exit+0x4c/0x80 [ 67.843065][ T4442] ? __lock_acquire+0x7c60/0x7c60 [ 67.848105][ T4442] ? __fdget_pos+0x1e2/0x370 [ 67.852712][ T4442] ksys_write+0x14d/0x250 [ 67.857226][ T4442] ? __ia32_sys_read+0x80/0x80 [ 67.862101][ T4442] ? lockdep_hardirqs_on+0x94/0x140 [ 67.867310][ T4442] do_syscall_64+0x4c/0xa0 [ 67.871739][ T4442] ? clear_bhb_loop+0x30/0x80 [ 67.876437][ T4442] ? clear_bhb_loop+0x30/0x80 [ 67.881124][ T4442] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 67.887040][ T4442] RIP: 0033:0x7f69eab0cbe9 [ 67.891463][ T4442] 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 [ 67.911069][ T4442] RSP: 002b:00007ffec71369f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 67.919488][ T4442] RAX: ffffffffffffffda RBX: 00007f69ead33fa0 RCX: 00007f69eab0cbe9 [ 67.927467][ T4442] RDX: 0000000000000008 RSI: 0000200000000080 RDI: 0000000000000003 [ 67.935441][ T4442] RBP: 00007f69eab8fe19 R08: 0000000000000000 R09: 0000000000000000 [ 67.943420][ T4442] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 67.951435][ T4442] R13: 00007f69ead33fa0 R14: 00007f69ead33fa0 R15: 0000000000000003 [ 67.959416][ T4442]