Warning: Permanently added '10.128.0.30' (ED25519) to the list of known hosts. 2025/08/17 20:26:49 ignoring optional flag "sandboxArg"="0" 2025/08/17 20:26:50 parsed 1 programs [ 64.624488][ T4188] cgroup: Unknown subsys name 'net' [ 64.756084][ T4188] cgroup: Unknown subsys name 'rlimit' [ 66.246327][ T4188] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 67.864014][ T4203] chnl_net:caif_netlink_parms(): no params data found [ 67.918539][ T4203] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.926247][ T4203] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.934420][ T4203] device bridge_slave_0 entered promiscuous mode [ 67.946812][ T4203] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.954101][ T4203] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.963252][ T4203] device bridge_slave_1 entered promiscuous mode [ 67.987991][ T4203] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 67.999319][ T4203] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 68.023475][ T4203] team0: Port device team_slave_0 added [ 68.032004][ T4203] team0: Port device team_slave_1 added [ 68.058998][ T4203] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 68.066197][ 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. [ 68.092387][ T4203] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 68.105214][ T4203] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 68.112356][ 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. [ 68.138705][ T4203] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 68.175096][ T4203] device hsr_slave_0 entered promiscuous mode [ 68.182265][ T4203] device hsr_slave_1 entered promiscuous mode [ 68.317499][ T4203] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 68.332817][ T4203] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 68.343909][ T4203] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 68.354404][ T4203] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 68.387759][ T4203] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.395056][ T4203] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.403265][ T4203] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.410436][ T4203] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.471886][ T4203] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.486044][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.498132][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.508368][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.516945][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 68.533751][ T4203] 8021q: adding VLAN 0 to HW filter on device team0 [ 68.547149][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 68.556267][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.563491][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.592537][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 68.603082][ T154] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.610391][ T154] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.621799][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 68.640416][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 68.650688][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 68.659468][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 68.674566][ T4203] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 68.687753][ T4203] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 68.698623][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 68.831719][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 68.840353][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 68.857720][ T4203] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 68.881288][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 68.892372][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 68.913358][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 68.923148][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 68.935605][ T4203] device veth0_vlan entered promiscuous mode [ 68.953706][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 68.962387][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 68.975503][ T4203] device veth1_vlan entered promiscuous mode [ 69.002867][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 69.013246][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 69.021767][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 69.030859][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 69.042638][ T4203] device veth0_macvtap entered promiscuous mode [ 69.054214][ T4203] device veth1_macvtap entered promiscuous mode [ 69.074866][ T4203] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 69.085364][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 69.095019][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 69.104245][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 69.113155][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 69.126245][ T4203] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 69.134584][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 69.144093][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 69.157281][ T4203] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.166788][ T4203] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.176412][ T4203] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.195607][ T4203] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.333344][ T4203] syz-executor (4203) used greatest stack depth: 20168 bytes left [ 69.537807][ T144] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 71.431896][ T1429] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.438449][ T1429] ieee802154 phy1 wpan1: encryption failed: -22 [ 71.976846][ T144] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 74.314367][ T144] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 74.389672][ T144] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 75.335050][ T4218] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 75.354937][ T144] device hsr_slave_0 left promiscuous mode [ 75.366786][ T4218] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 75.375000][ T144] device hsr_slave_1 left promiscuous mode [ 75.382983][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 75.390535][ T144] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 75.398784][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 75.406823][ T144] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 75.414644][ T144] device bridge_slave_1 left promiscuous mode [ 75.421700][ T144] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.435183][ T144] device bridge_slave_0 left promiscuous mode [ 75.442621][ T144] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.461926][ T144] device veth1_macvtap left promiscuous mode [ 75.468296][ T144] device veth0_macvtap left promiscuous mode [ 75.474440][ T144] device veth1_vlan left promiscuous mode [ 75.481172][ T144] device veth0_vlan left promiscuous mode [ 75.638630][ T144] team0 (unregistering): Port device team_slave_1 removed [ 75.654584][ T144] team0 (unregistering): Port device team_slave_0 removed [ 75.668044][ T144] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 75.682688][ T144] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 75.740639][ T144] bond0 (unregistering): Released all slaves [ 75.798807][ T4218] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 75.827238][ T154] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 75.836299][ T154] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 75.857664][ T4218] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2025/08/17 20:27:05 executed programs: 0 [ 77.647926][ T4353] chnl_net:caif_netlink_parms(): no params data found [ 77.760636][ T4353] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.768172][ T4353] bridge0: port 1(bridge_slave_0) entered disabled state [ 77.776507][ T4353] device bridge_slave_0 entered promiscuous mode [ 77.785163][ T4353] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.792554][ T4353] bridge0: port 2(bridge_slave_1) entered disabled state [ 77.802206][ T4353] device bridge_slave_1 entered promiscuous mode [ 77.842328][ T4353] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 77.861731][ T4353] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 77.941959][ T4353] team0: Port device team_slave_0 added [ 77.950821][ T4353] team0: Port device team_slave_1 added [ 78.011087][ T4353] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 78.018126][ T4353] 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. [ 78.081030][ T4353] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 78.102328][ T4353] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 78.120273][ T4353] 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. [ 78.168766][ T4353] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 78.213110][ T4353] device hsr_slave_0 entered promiscuous mode [ 78.221440][ T4353] device hsr_slave_1 entered promiscuous mode [ 79.061185][ T4353] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 79.073896][ T4353] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 79.084611][ T4353] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 79.127466][ T4353] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 79.284223][ T4353] 8021q: adding VLAN 0 to HW filter on device bond0 [ 79.302607][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 79.311212][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 79.323662][ T4353] 8021q: adding VLAN 0 to HW filter on device team0 [ 79.361717][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 79.371554][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 79.382363][ T155] bridge0: port 1(bridge_slave_0) entered blocking state [ 79.389515][ T155] bridge0: port 1(bridge_slave_0) entered forwarding state [ 79.399410][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 79.409003][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 79.419278][ T155] bridge0: port 2(bridge_slave_1) entered blocking state [ 79.426554][ T155] bridge0: port 2(bridge_slave_1) entered forwarding state [ 79.436866][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 79.462685][ T4295] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 79.472361][ T4295] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 79.482899][ T4295] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 79.496276][ T4295] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 79.505716][ T4254] Bluetooth: hci0: command 0x0409 tx timeout [ 79.516360][ T4295] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 79.526358][ T4295] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 79.542081][ T4295] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 79.551744][ T4295] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 79.560938][ T4295] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 79.606179][ T4295] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 79.615080][ T4295] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 79.628102][ T4353] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 79.857678][ T4295] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 79.866261][ T4295] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 79.882361][ T4353] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 79.928467][ T4218] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 79.938210][ T4218] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 79.960393][ T4218] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 79.972258][ T4218] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 79.988495][ T4353] device veth0_vlan entered promiscuous mode [ 80.004672][ T4218] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 80.028025][ T4218] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 80.045619][ T4353] device veth1_vlan entered promiscuous mode [ 80.084276][ T4295] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 80.093508][ T4295] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 80.102148][ T4295] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 80.112431][ T4295] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 80.125165][ T4353] device veth0_macvtap entered promiscuous mode [ 80.194257][ T4353] device veth1_macvtap entered promiscuous mode [ 80.217805][ T4353] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 80.225404][ T4295] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 80.240660][ T4295] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 80.248913][ T4295] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 80.260772][ T4295] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 80.275569][ T4353] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 80.287056][ T4295] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 80.300797][ T4295] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 80.313855][ T4353] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 80.324678][ T4353] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 80.333897][ T4353] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 80.343096][ T4353] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 80.436612][ T4295] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 80.451849][ T4295] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 80.473048][ T4218] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 80.490050][ T4218] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 80.498264][ T4218] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 80.521248][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 80.714001][ T4497] [ 80.716399][ T4497] ====================================================== [ 80.723682][ T4497] WARNING: possible circular locking dependency detected [ 80.730843][ T4497] 5.15.189-syzkaller #0 Not tainted [ 80.736174][ T4497] ------------------------------------------------------ [ 80.743220][ T4497] syz.0.17/4497 is trying to acquire lock: [ 80.749184][ T4497] ffff88807dd5cc28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xc1/0x1b0 [ 80.760422][ T4497] [ 80.760422][ T4497] but task is already holding lock: [ 80.767810][ T4497] ffffffff8d4be228 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 80.777508][ T4497] [ 80.777508][ T4497] which lock already depends on the new lock. [ 80.777508][ T4497] [ 80.787958][ T4497] [ 80.787958][ T4497] the existing dependency chain (in reverse order) is: [ 80.797127][ T4497] [ 80.797127][ T4497] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 80.805149][ T4497] __mutex_lock_common+0x1eb/0x2390 [ 80.810892][ T4497] mutex_lock_nested+0x17/0x20 [ 80.816196][ T4497] rfkill_register+0x33/0x8a0 [ 80.821419][ T4497] hci_register_dev+0x452/0x970 [ 80.826814][ T4497] vhci_create_device+0x32c/0x5c0 [ 80.832468][ T4497] vhci_write+0x391/0x450 [ 80.837338][ T4497] vfs_write+0x712/0xd00 [ 80.842221][ T4497] ksys_write+0x14d/0x250 [ 80.847100][ T4497] do_syscall_64+0x4c/0xa0 [ 80.852069][ T4497] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 80.858523][ T4497] [ 80.858523][ T4497] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 80.866490][ T4497] __mutex_lock_common+0x1eb/0x2390 [ 80.872259][ T4497] mutex_lock_nested+0x17/0x20 [ 80.877570][ T4497] vhci_send_frame+0x88/0x100 [ 80.882790][ T4497] hci_send_frame+0x1a9/0x2e0 [ 80.888155][ T4497] hci_tx_work+0x9f9/0x1710 [ 80.893201][ T4497] process_one_work+0x863/0x1000 [ 80.898676][ T4497] worker_thread+0xaa8/0x12a0 [ 80.903950][ T4497] kthread+0x436/0x520 [ 80.908767][ T4497] ret_from_fork+0x1f/0x30 [ 80.914033][ T4497] [ 80.914033][ T4497] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 80.923364][ T4497] __flush_work+0xdd/0x1b0 [ 80.928343][ T4497] hci_dev_do_close+0x1e7/0x1030 [ 80.934026][ T4497] hci_unregister_dev+0x2d7/0x580 [ 80.939700][ T4497] vhci_release+0x73/0xc0 [ 80.944585][ T4497] __fput+0x234/0x930 [ 80.949118][ T4497] task_work_run+0x125/0x1a0 [ 80.954393][ T4497] do_exit+0x61e/0x20a0 [ 80.959103][ T4497] do_group_exit+0x12e/0x300 [ 80.964370][ T4497] get_signal+0x6ca/0x12c0 [ 80.969341][ T4497] arch_do_signal_or_restart+0xc1/0x1300 [ 80.975574][ T4497] exit_to_user_mode_loop+0x9e/0x130 [ 80.981430][ T4497] exit_to_user_mode_prepare+0xb1/0x140 [ 80.987734][ T4497] syscall_exit_to_user_mode+0x16/0x40 [ 80.993943][ T4497] do_syscall_64+0x58/0xa0 [ 80.999015][ T4497] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 81.005450][ T4497] [ 81.005450][ T4497] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 81.013126][ T4497] __mutex_lock_common+0x1eb/0x2390 [ 81.018888][ T4497] mutex_lock_nested+0x17/0x20 [ 81.024202][ T4497] bg_scan_update+0x44/0x3b0 [ 81.029336][ T4497] process_one_work+0x863/0x1000 [ 81.034824][ T4497] worker_thread+0xaa8/0x12a0 [ 81.040290][ T4497] kthread+0x436/0x520 [ 81.044913][ T4497] ret_from_fork+0x1f/0x30 [ 81.049885][ T4497] [ 81.049885][ T4497] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 81.059732][ T4497] __lock_acquire+0x2c33/0x7c60 [ 81.065140][ T4497] lock_acquire+0x197/0x3f0 [ 81.070194][ T4497] __flush_work+0xdd/0x1b0 [ 81.075258][ T4497] __cancel_work_timer+0x3ac/0x520 [ 81.081005][ T4497] hci_request_cancel_all+0xcc/0x300 [ 81.086857][ T4497] hci_dev_do_close+0x4e/0x1030 [ 81.092297][ T4497] hci_rfkill_set_block+0x10a/0x190 [ 81.098073][ T4497] rfkill_set_block+0x1c6/0x420 [ 81.103835][ T4497] rfkill_fop_write+0x458/0x560 [ 81.109242][ T4497] do_iter_write+0x3e4/0x7b0 [ 81.114382][ T4497] do_writev+0x254/0x410 [ 81.119265][ T4497] do_syscall_64+0x4c/0xa0 [ 81.124235][ T4497] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 81.130687][ T4497] [ 81.130687][ T4497] other info that might help us debug this: [ 81.130687][ T4497] [ 81.141249][ T4497] Chain exists of: [ 81.141249][ T4497] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 81.141249][ T4497] [ 81.157237][ T4497] Possible unsafe locking scenario: [ 81.157237][ T4497] [ 81.164717][ T4497] CPU0 CPU1 [ 81.170147][ T4497] ---- ---- [ 81.175631][ T4497] lock(rfkill_global_mutex); [ 81.180506][ T4497] lock(&data->open_mutex); [ 81.187784][ T4497] lock(rfkill_global_mutex); [ 81.195282][ T4497] lock((work_completion)(&hdev->bg_scan_update)); [ 81.201893][ T4497] [ 81.201893][ T4497] *** DEADLOCK *** [ 81.201893][ T4497] [ 81.210458][ T4497] 1 lock held by syz.0.17/4497: [ 81.215336][ T4497] #0: ffffffff8d4be228 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 81.225560][ T4497] [ 81.225560][ T4497] stack backtrace: [ 81.231574][ T4497] CPU: 0 PID: 4497 Comm: syz.0.17 Not tainted 5.15.189-syzkaller #0 [ 81.239574][ T4497] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 81.249669][ T4497] Call Trace: [ 81.252970][ T4497] [ 81.255918][ T4497] dump_stack_lvl+0x168/0x230 [ 81.260648][ T4497] ? load_image+0x3b0/0x3b0 [ 81.265177][ T4497] ? show_regs_print_info+0x20/0x20 [ 81.270455][ T4497] ? print_circular_bug+0x12b/0x1a0 [ 81.275681][ T4497] check_noncircular+0x274/0x310 [ 81.280638][ T4497] ? add_chain_block+0x940/0x940 [ 81.285693][ T4497] ? lockdep_lock+0xdc/0x1e0 [ 81.290526][ T4497] ? __lock_acquire+0x12d9/0x7c60 [ 81.295582][ T4497] ? lockdep_lock+0x1e0/0x1e0 [ 81.300289][ T4497] ? mark_lock+0x94/0x320 [ 81.304649][ T4497] __lock_acquire+0x2c33/0x7c60 [ 81.309538][ T4497] ? verify_lock_unused+0x140/0x140 [ 81.314769][ T4497] ? verify_lock_unused+0x140/0x140 [ 81.320023][ T4497] lock_acquire+0x197/0x3f0 [ 81.324644][ T4497] ? __flush_work+0xc1/0x1b0 [ 81.329249][ T4497] ? __lock_acquire+0x7c60/0x7c60 [ 81.334296][ T4497] ? read_lock_is_recursive+0x10/0x10 [ 81.340086][ T4497] ? start_flush_work+0x776/0x820 [ 81.345125][ T4497] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 81.351064][ T4497] ? _raw_spin_unlock+0x40/0x40 [ 81.355976][ T4497] __flush_work+0xdd/0x1b0 [ 81.360398][ T4497] ? __flush_work+0xc1/0x1b0 [ 81.364996][ T4497] ? flush_work+0x20/0x20 [ 81.369416][ T4497] ? try_to_grab_pending+0xf3/0x7e0 [ 81.374634][ T4497] ? lockdep_hardirqs_off+0x70/0x100 [ 81.379931][ T4497] ? mark_lock+0x94/0x320 [ 81.384269][ T4497] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 81.390257][ T4497] ? lock_chain_count+0x20/0x20 [ 81.395114][ T4497] ? mark_lock+0x94/0x320 [ 81.399542][ T4497] ? __cancel_work_timer+0x331/0x520 [ 81.404836][ T4497] __cancel_work_timer+0x3ac/0x520 [ 81.409954][ T4497] ? cancel_work_sync+0x20/0x20 [ 81.414897][ T4497] ? __cancel_work+0x1f4/0x2d0 [ 81.419791][ T4497] ? lockdep_hardirqs_on+0x94/0x140 [ 81.425116][ T4497] ? __cancel_work+0x26f/0x2d0 [ 81.429896][ T4497] ? cancel_work+0x20/0x20 [ 81.434337][ T4497] ? lock_chain_count+0x20/0x20 [ 81.439294][ T4497] hci_request_cancel_all+0xcc/0x300 [ 81.445506][ T4497] hci_dev_do_close+0x4e/0x1030 [ 81.450366][ T4497] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 81.456282][ T4497] ? _raw_spin_unlock+0x40/0x40 [ 81.461149][ T4497] hci_rfkill_set_block+0x10a/0x190 [ 81.466472][ T4497] ? rcu_lock_release+0x20/0x20 [ 81.471347][ T4497] rfkill_set_block+0x1c6/0x420 [ 81.476210][ T4497] rfkill_fop_write+0x458/0x560 [ 81.481200][ T4497] ? _copy_from_user+0x111/0x170 [ 81.486319][ T4497] ? rfkill_fop_read+0x4b0/0x4b0 [ 81.491262][ T4497] ? common_file_perm+0x171/0x1c0 [ 81.496289][ T4497] ? fsnotify_perm+0x5d/0x560 [ 81.500973][ T4497] ? security_file_permission+0x75/0xa0 [ 81.506529][ T4497] do_iter_write+0x3e4/0x7b0 [ 81.511127][ T4497] do_writev+0x254/0x410 [ 81.515382][ T4497] ? do_readv+0x3e0/0x3e0 [ 81.519722][ T4497] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 81.525716][ T4497] ? lock_chain_count+0x20/0x20 [ 81.530570][ T4497] ? vtime_user_exit+0x2dc/0x400 [ 81.535512][ T4497] ? lockdep_hardirqs_on+0x94/0x140 [ 81.540714][ T4497] do_syscall_64+0x4c/0xa0 [ 81.545223][ T4497] ? clear_bhb_loop+0x30/0x80 [ 81.550061][ T4497] ? clear_bhb_loop+0x30/0x80 [ 81.554755][ T4497] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 81.560873][ T4497] RIP: 0033:0x7fba5e870be9 [ 81.565312][ T4497] 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 [ 81.585117][ T4497] RSP: 002b:00007ffc1249e3d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 [ 81.593648][ T4497] RAX: ffffffffffffffda RBX: 00007fba5ea97fa0 RCX: 00007fba5e870be9 [ 81.601626][ T4497] RDX: 0000000000000002 RSI: 0000200000001280 RDI: 0000000000000003 [ 81.609600][ T4497] RBP: 00007fba5e8f3e19 R08: 0000000000000000 R09: 0000000000000000 [ 81.617611][ T4497] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 81.625582][ T4497] R13: 00007fba5ea97fa0 R14: 00007fba5ea97fa0 R15: 0000000000000003 [ 81.633567][ T4497] [ 81.642675][ T4254] Bluetooth: hci0: command 0x041b tx timeout