Warning: Permanently added '10.128.1.188' (ED25519) to the list of known hosts. 2026/07/26 06:51:14 parsed 1 programs 2026/07/26 06:51:14 serving rpc on tcp://35321 [ 71.708531][ T4197] cgroup: Unknown subsys name 'net' [ 71.834248][ T4197] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 73.444889][ T4197] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 76.880082][ T4253] chnl_net:caif_netlink_parms(): no params data found [ 76.948724][ T4253] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.956722][ T4253] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.965289][ T4253] device bridge_slave_0 entered promiscuous mode [ 76.976567][ T4253] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.984082][ T4253] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.993580][ T4253] device bridge_slave_1 entered promiscuous mode [ 77.017159][ T4253] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 77.029458][ T4253] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 77.052630][ T4253] team0: Port device team_slave_0 added [ 77.062994][ T4253] team0: Port device team_slave_1 added [ 77.088229][ T4253] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 77.095236][ T4253] 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. [ 77.121419][ T4253] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 77.134603][ T4253] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 77.141750][ T4253] 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. [ 77.168420][ T4253] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 77.273033][ T4253] device hsr_slave_0 entered promiscuous mode [ 77.280837][ T4253] device hsr_slave_1 entered promiscuous mode [ 77.429546][ T4253] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 77.441535][ T4253] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 77.450819][ T4253] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 77.461484][ T4253] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 77.506747][ T4253] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.513998][ T4253] bridge0: port 2(bridge_slave_1) entered forwarding state [ 77.522172][ T4253] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.529281][ T4253] bridge0: port 1(bridge_slave_0) entered forwarding state [ 77.619316][ T4253] 8021q: adding VLAN 0 to HW filter on device bond0 [ 77.633829][ T1465] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 77.644206][ T1465] bridge0: port 1(bridge_slave_0) entered disabled state [ 77.653681][ T1465] bridge0: port 2(bridge_slave_1) entered disabled state [ 77.662170][ T1465] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 77.675789][ T4253] 8021q: adding VLAN 0 to HW filter on device team0 [ 77.689806][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 77.699401][ T144] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.706500][ T144] bridge0: port 1(bridge_slave_0) entered forwarding state [ 77.736222][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 77.744974][ T144] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.752118][ T144] bridge0: port 2(bridge_slave_1) entered forwarding state [ 77.773299][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 77.783148][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 77.799114][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 77.816885][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 77.826748][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 78.002092][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 78.009849][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 78.023193][ T4253] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 78.061407][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 78.070749][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 78.114940][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 78.123852][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 78.133040][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 78.141560][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 78.152941][ T4253] device veth0_vlan entered promiscuous mode [ 78.169803][ T4253] device veth1_vlan entered promiscuous mode [ 78.195644][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 78.210311][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 78.219350][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 78.229591][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 78.242745][ T4253] device veth0_macvtap entered promiscuous mode [ 78.254500][ T4253] device veth1_macvtap entered promiscuous mode [ 78.276692][ T4253] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 78.285325][ T1465] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 78.295308][ T1465] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 78.304073][ T1465] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 78.315325][ T1465] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 78.328858][ T4253] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 78.339518][ T1465] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 78.350029][ T1465] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 78.363045][ T4253] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.373321][ T4253] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.384076][ T4253] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.393963][ T4253] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.542656][ T4253] syz-executor (4253) used greatest stack depth: 20304 bytes left [ 79.031150][ T154] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 79.050838][ T154] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 79.072803][ T1465] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 79.092322][ T1465] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 79.101028][ T1465] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 79.113114][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2026/07/26 06:51:24 executed programs: 0 [ 79.983928][ T4305] chnl_net:caif_netlink_parms(): no params data found [ 80.057580][ T540] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 80.072122][ T4305] bridge0: port 1(bridge_slave_0) entered blocking state [ 80.080508][ T4305] bridge0: port 1(bridge_slave_0) entered disabled state [ 80.090161][ T4305] device bridge_slave_0 entered promiscuous mode [ 80.099894][ T4305] bridge0: port 2(bridge_slave_1) entered blocking state [ 80.107113][ T4305] bridge0: port 2(bridge_slave_1) entered disabled state [ 80.115758][ T4305] device bridge_slave_1 entered promiscuous mode [ 80.137220][ T4305] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 80.148605][ T4305] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 80.172785][ T4305] team0: Port device team_slave_0 added [ 80.180912][ T4305] team0: Port device team_slave_1 added [ 80.199230][ T4305] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 80.206336][ T4305] 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. [ 80.232574][ T4305] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 80.245824][ T4305] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 80.253044][ T4305] 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. [ 80.280553][ T4305] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 80.314255][ T4305] device hsr_slave_0 entered promiscuous mode [ 80.321230][ T4305] device hsr_slave_1 entered promiscuous mode [ 80.328057][ T4305] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 80.336274][ T4305] Cannot create hsr debugfs directory [ 81.888466][ T4274] Bluetooth: hci0: command 0x0409 tx timeout [ 82.755072][ T540] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 82.913475][ T540] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 82.965746][ T540] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 83.756770][ T4305] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 83.768134][ T4305] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 83.778305][ T4305] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 83.788537][ T4305] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 83.891501][ T4305] 8021q: adding VLAN 0 to HW filter on device bond0 [ 83.905606][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 83.914255][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 83.935815][ T4305] 8021q: adding VLAN 0 to HW filter on device team0 [ 83.947052][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 83.956967][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 83.960044][ T4325] Bluetooth: hci0: command 0x041b tx timeout [ 83.970989][ T144] bridge0: port 1(bridge_slave_0) entered blocking state [ 83.978725][ T144] bridge0: port 1(bridge_slave_0) entered forwarding state [ 83.989193][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 84.001479][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 84.010563][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 84.019661][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 84.026777][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 84.060233][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 84.069496][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 84.082560][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 84.092301][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 84.101599][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 84.123665][ T1465] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 84.135918][ T1465] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 84.149304][ T1465] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 84.159074][ T1465] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 84.180792][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 84.189594][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 84.203740][ T4305] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 84.245092][ T540] device hsr_slave_0 left promiscuous mode [ 84.252298][ T540] device hsr_slave_1 left promiscuous mode [ 84.262222][ T540] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 84.272664][ T540] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 84.286067][ T540] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 84.293910][ T540] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 84.304767][ T540] device bridge_slave_1 left promiscuous mode [ 84.312753][ T540] bridge0: port 2(bridge_slave_1) entered disabled state [ 84.330589][ T540] device bridge_slave_0 left promiscuous mode [ 84.337604][ T540] bridge0: port 1(bridge_slave_0) entered disabled state [ 84.357870][ T540] device veth1_macvtap left promiscuous mode [ 84.364195][ T540] device veth0_macvtap left promiscuous mode [ 84.371995][ T540] device veth1_vlan left promiscuous mode [ 84.378264][ T540] device veth0_vlan left promiscuous mode [ 84.555341][ T540] team0 (unregistering): Port device team_slave_1 removed [ 84.571025][ T540] team0 (unregistering): Port device team_slave_0 removed [ 84.588488][ T540] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 84.603881][ T540] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 84.669614][ T540] bond0 (unregistering): Released all slaves [ 84.802876][ T4305] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 84.813100][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 84.821794][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 84.837173][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 84.846886][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 84.869498][ T4354] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 84.879620][ T4354] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 84.893629][ T4305] device veth0_vlan entered promiscuous mode [ 84.911238][ T4354] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 84.920723][ T4354] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 84.934087][ T4305] device veth1_vlan entered promiscuous mode [ 84.960160][ T4305] device veth0_macvtap entered promiscuous mode [ 84.973830][ T1465] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 84.982929][ T1465] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 84.991927][ T1465] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 85.002174][ T4305] device veth1_macvtap entered promiscuous mode [ 85.021784][ T4305] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 85.029445][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 85.038729][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 85.048249][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 85.061373][ T4305] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 85.074101][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 85.083631][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 85.096276][ T4305] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 85.105527][ T4305] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 85.114622][ T4305] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 85.124356][ T4305] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 85.203061][ T1465] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 85.221827][ T1465] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 85.243360][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 85.262901][ T144] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 85.272745][ T144] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 85.281591][ T1465] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 85.443394][ T4359] [ 85.445790][ T4359] ====================================================== [ 85.452827][ T4359] WARNING: possible circular locking dependency detected [ 85.459892][ T4359] syzkaller #0 Not tainted [ 85.464370][ T4359] ------------------------------------------------------ [ 85.471498][ T4359] syz.0.17/4359 is trying to acquire lock: [ 85.477336][ T4359] ffff888023a69028 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 85.488818][ T4359] [ 85.488818][ T4359] but task is already holding lock: [ 85.496214][ T4359] ffffffff8d6d5ea8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x1ae/0x560 [ 85.505928][ T4359] [ 85.505928][ T4359] which lock already depends on the new lock. [ 85.505928][ T4359] [ 85.516446][ T4359] [ 85.516446][ T4359] the existing dependency chain (in reverse order) is: [ 85.525487][ T4359] [ 85.525487][ T4359] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 85.533527][ T4359] __mutex_lock_common+0x1e5/0x2400 [ 85.539296][ T4359] mutex_lock_nested+0x17/0x20 [ 85.544617][ T4359] rfkill_register+0x2f/0x970 [ 85.549854][ T4359] hci_register_dev+0x459/0x980 [ 85.555256][ T4359] vhci_create_device+0x32e/0x5c0 [ 85.560839][ T4359] vhci_write+0x389/0x440 [ 85.565728][ T4359] vfs_write+0x748/0xd70 [ 85.570533][ T4359] ksys_write+0x153/0x260 [ 85.575412][ T4359] do_syscall_64+0x4c/0xa0 [ 85.580386][ T4359] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 85.586835][ T4359] [ 85.586835][ T4359] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 85.594779][ T4359] __mutex_lock_common+0x1e5/0x2400 [ 85.600538][ T4359] mutex_lock_nested+0x17/0x20 [ 85.605857][ T4359] vhci_send_frame+0x88/0x100 [ 85.611095][ T4359] hci_send_frame+0x1a9/0x2e0 [ 85.616333][ T4359] hci_tx_work+0x9b5/0x16d0 [ 85.621389][ T4359] process_one_work+0x867/0xff0 [ 85.626800][ T4359] worker_thread+0xad7/0x12a0 [ 85.632044][ T4359] kthread+0x42e/0x520 [ 85.636667][ T4359] ret_from_fork+0x1f/0x30 [ 85.641641][ T4359] [ 85.641641][ T4359] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 85.650919][ T4359] __flush_work+0x116/0x210 [ 85.656019][ T4359] hci_dev_do_close+0x201/0x1020 [ 85.661603][ T4359] hci_unregister_dev+0x2eb/0x590 [ 85.667187][ T4359] vhci_release+0x73/0xc0 [ 85.672074][ T4359] __fput+0x212/0x8c0 [ 85.676618][ T4359] task_work_run+0x125/0x1a0 [ 85.681789][ T4359] do_exit+0x635/0x2110 [ 85.686503][ T4359] do_group_exit+0x12c/0x2f0 [ 85.691647][ T4359] get_signal+0x7eb/0x12e0 [ 85.696649][ T4359] arch_do_signal_or_restart+0xe6/0x12a0 [ 85.702861][ T4359] exit_to_user_mode_loop+0x9e/0x130 [ 85.709141][ T4359] exit_to_user_mode_prepare+0xee/0x180 [ 85.715494][ T4359] syscall_exit_to_user_mode+0x16/0x40 [ 85.721654][ T4359] do_syscall_64+0x58/0xa0 [ 85.726829][ T4359] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 85.733384][ T4359] [ 85.733384][ T4359] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 85.741072][ T4359] __mutex_lock_common+0x1e5/0x2400 [ 85.746844][ T4359] mutex_lock_nested+0x17/0x20 [ 85.752179][ T4359] bg_scan_update+0x44/0x3b0 [ 85.757421][ T4359] process_one_work+0x867/0xff0 [ 85.762837][ T4359] worker_thread+0xad7/0x12a0 [ 85.768083][ T4359] kthread+0x42e/0x520 [ 85.772709][ T4359] ret_from_fork+0x1f/0x30 [ 85.777694][ T4359] [ 85.777694][ T4359] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 85.787657][ T4359] __lock_acquire+0x2c66/0x7b50 [ 85.793082][ T4359] lock_acquire+0x19e/0x400 [ 85.798297][ T4359] __flush_work+0x116/0x210 [ 85.803359][ T4359] __cancel_work_timer+0x3f4/0x560 [ 85.809027][ T4359] hci_request_cancel_all+0xcc/0x300 [ 85.814875][ T4359] hci_dev_do_close+0x4e/0x1020 [ 85.820290][ T4359] hci_rfkill_set_block+0x101/0x180 [ 85.826052][ T4359] rfkill_set_block+0x1c1/0x3c0 [ 85.831470][ T4359] rfkill_fop_write+0x453/0x560 [ 85.836878][ T4359] vfs_write+0x304/0xd70 [ 85.841673][ T4359] ksys_write+0x153/0x260 [ 85.846555][ T4359] do_syscall_64+0x4c/0xa0 [ 85.851522][ T4359] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 85.857978][ T4359] [ 85.857978][ T4359] other info that might help us debug this: [ 85.857978][ T4359] [ 85.868277][ T4359] Chain exists of: [ 85.868277][ T4359] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 85.868277][ T4359] [ 85.884044][ T4359] Possible unsafe locking scenario: [ 85.884044][ T4359] [ 85.892590][ T4359] CPU0 CPU1 [ 85.897986][ T4359] ---- ---- [ 85.903387][ T4359] lock(rfkill_global_mutex); [ 85.908188][ T4359] lock(&data->open_mutex); [ 85.915370][ T4359] lock(rfkill_global_mutex); [ 85.922706][ T4359] lock((work_completion)(&hdev->bg_scan_update)); [ 85.929501][ T4359] [ 85.929501][ T4359] *** DEADLOCK *** [ 85.929501][ T4359] [ 85.937675][ T4359] 1 lock held by syz.0.17/4359: [ 85.942551][ T4359] #0: ffffffff8d6d5ea8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x1ae/0x560 [ 85.952880][ T4359] [ 85.952880][ T4359] stack backtrace: [ 85.958824][ T4359] CPU: 1 PID: 4359 Comm: syz.0.17 Not tainted syzkaller #0 [ 85.966192][ T4359] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 85.976304][ T4359] Call Trace: [ 85.979618][ T4359] [ 85.982668][ T4359] dump_stack_lvl+0x188/0x250 [ 85.987424][ T4359] ? load_image+0x410/0x410 [ 85.991993][ T4359] ? show_regs_print_info+0x20/0x20 [ 85.997247][ T4359] ? print_circular_bug+0x12b/0x1a0 [ 86.002483][ T4359] check_noncircular+0x296/0x330 [ 86.007635][ T4359] ? look_up_lock_class+0x71/0x110 [ 86.012873][ T4359] ? add_chain_block+0x9b0/0x9b0 [ 86.018283][ T4359] ? lockdep_lock+0xf1/0x1f0 [ 86.023019][ T4359] ? __lock_acquire+0x1305/0x7b50 [ 86.028131][ T4359] ? mark_lock+0x94/0x320 [ 86.032499][ T4359] ? _find_first_zero_bit+0xd1/0xf0 [ 86.037900][ T4359] __lock_acquire+0x2c66/0x7b50 [ 86.039218][ T4326] Bluetooth: hci0: command 0x040f tx timeout [ 86.042802][ T4359] ? verify_lock_unused+0x140/0x140 [ 86.042834][ T4359] ? verify_lock_unused+0x140/0x140 [ 86.059334][ T4359] lock_acquire+0x19e/0x400 [ 86.063878][ T4359] ? __flush_work+0xfa/0x210 [ 86.068506][ T4359] ? __lock_acquire+0x7b50/0x7b50 [ 86.073573][ T4359] ? read_lock_is_recursive+0x10/0x10 [ 86.079086][ T4359] ? start_flush_work+0x784/0x830 [ 86.084359][ T4359] __flush_work+0x116/0x210 [ 86.088895][ T4359] ? __flush_work+0xfa/0x210 [ 86.093542][ T4359] ? flush_work+0x20/0x20 [ 86.097915][ T4359] ? try_to_grab_pending+0xfb/0x820 [ 86.103143][ T4359] ? mark_lock+0x94/0x320 [ 86.107537][ T4359] ? lockdep_hardirqs_on_prepare+0x448/0x7c0 [ 86.113559][ T4359] ? lock_chain_count+0x20/0x20 [ 86.118442][ T4359] ? mark_lock+0x94/0x320 [ 86.122807][ T4359] ? __cancel_work_timer+0x36a/0x560 [ 86.128135][ T4359] __cancel_work_timer+0x3f4/0x560 [ 86.133291][ T4359] ? cancel_work_sync+0x20/0x20 [ 86.138167][ T4359] ? __cancel_work+0x1f9/0x2e0 [ 86.142967][ T4359] ? lockdep_hardirqs_on+0x94/0x140 [ 86.148221][ T4359] ? __cancel_work+0x27b/0x2e0 [ 86.153040][ T4359] ? cancel_work+0x20/0x20 [ 86.157492][ T4359] hci_request_cancel_all+0xcc/0x300 [ 86.162811][ T4359] hci_dev_do_close+0x4e/0x1020 [ 86.167695][ T4359] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 86.173635][ T4359] ? _raw_spin_unlock+0x40/0x40 [ 86.178529][ T4359] hci_rfkill_set_block+0x101/0x180 [ 86.184044][ T4359] ? rcu_lock_release+0x20/0x20 [ 86.188944][ T4359] rfkill_set_block+0x1c1/0x3c0 [ 86.193842][ T4359] rfkill_fop_write+0x453/0x560 [ 86.198722][ T4359] ? rfkill_fop_read+0x560/0x560 [ 86.203700][ T4359] ? common_file_perm+0x130/0x1c0 [ 86.208773][ T4359] ? fsnotify_perm+0x5d/0x560 [ 86.213672][ T4359] ? security_file_permission+0x75/0xa0 [ 86.219255][ T4359] ? rfkill_fop_read+0x560/0x560 [ 86.224227][ T4359] vfs_write+0x304/0xd70 [ 86.228499][ T4359] ? file_end_write+0x250/0x250 [ 86.233392][ T4359] ? __context_tracking_exit+0x4c/0x80 [ 86.238902][ T4359] ? __fdget_pos+0x1e2/0x370 [ 86.243613][ T4359] ksys_write+0x153/0x260 [ 86.247974][ T4359] ? __ia32_sys_read+0x80/0x80 [ 86.252772][ T4359] ? lockdep_hardirqs_on+0x94/0x140 [ 86.258008][ T4359] do_syscall_64+0x4c/0xa0 [ 86.262998][ T4359] ? clear_bhb_loop+0x30/0x80 [ 86.267851][ T4359] ? clear_bhb_loop+0x30/0x80 [ 86.272567][ T4359] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 86.278509][ T4359] RIP: 0033:0x7f4e43056e99 [ 86.282968][ T4359] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 [ 86.302703][ T4359] RSP: 002b:00007ffd1524fe48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 86.311193][ T4359] RAX: ffffffffffffffda RBX: 00007f4e432defa0 RCX: 00007f4e43056e99 [ 86.319201][ T4359] RDX: 0000000000000008 RSI: 0000200000000180 RDI: 0000000000000003 [ 86.327332][ T4359] RBP: 00007f4e430eceaf R08: 0000000000000000 R09: 0000000000000000 [ 86.335330][ T4359] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 86.343355][ T4359] R13: 00007f4e432defac R14: 00007f4e432defa0 R15: 00007f4e432defa0 [ 86.351452][ T4359] [ 86.837925][ T7] cfg80211: failed to load regulatory.db