Warning: Permanently added '10.128.1.126' (ED25519) to the list of known hosts. 2026/09/12 23:25:01 parsed 1 programs 2026/09/12 23:25:01 serving rpc on tcp://41597 [ 62.511166][ T4198] cgroup: Unknown subsys name 'net' [ 62.660785][ T4198] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 63.866473][ T4198] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 65.667721][ T4231] chnl_net:caif_netlink_parms(): no params data found [ 65.708670][ T4231] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.717056][ T4231] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.724812][ T4231] device bridge_slave_0 entered promiscuous mode [ 65.733673][ T4231] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.740946][ T4231] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.748730][ T4231] device bridge_slave_1 entered promiscuous mode [ 65.770447][ T4231] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 65.781386][ T4231] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 65.802543][ T4231] team0: Port device team_slave_0 added [ 65.812957][ T4231] team0: Port device team_slave_1 added [ 65.828031][ T4231] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 65.834972][ T4231] 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. [ 65.861079][ T4231] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 65.874740][ T4231] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 65.881963][ T4231] 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. [ 65.908859][ T4231] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 65.947718][ T4231] device hsr_slave_0 entered promiscuous mode [ 65.961598][ T4231] device hsr_slave_1 entered promiscuous mode [ 66.103368][ T4231] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 66.115147][ T4231] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 66.125011][ T4231] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 66.135586][ T4231] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 66.162968][ T4231] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.170196][ T4231] bridge0: port 2(bridge_slave_1) entered forwarding state [ 66.178154][ T4231] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.185245][ T4231] bridge0: port 1(bridge_slave_0) entered forwarding state [ 66.241714][ T4231] 8021q: adding VLAN 0 to HW filter on device bond0 [ 66.254726][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 66.265559][ T144] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.275222][ T144] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.283628][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 66.299456][ T4231] 8021q: adding VLAN 0 to HW filter on device team0 [ 66.311836][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 66.324525][ T144] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.331649][ T144] bridge0: port 1(bridge_slave_0) entered forwarding state [ 66.359568][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 66.368591][ T154] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.375709][ T154] bridge0: port 2(bridge_slave_1) entered forwarding state [ 66.388325][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 66.398117][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 66.419598][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 66.437901][ T4231] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 66.448612][ T4231] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 66.460879][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 66.470613][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 66.480515][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 66.608646][ T4231] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 66.617441][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 66.624954][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 66.649478][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 66.670361][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 66.679180][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 66.690892][ T4231] device veth0_vlan entered promiscuous mode [ 66.709206][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 66.719442][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 66.731729][ T4231] device veth1_vlan entered promiscuous mode [ 66.758288][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 66.768158][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 66.778498][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 66.787300][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 66.799194][ T4231] device veth0_macvtap entered promiscuous mode [ 66.810380][ T4231] device veth1_macvtap entered promiscuous mode [ 66.831606][ T4231] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 66.841795][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 66.851081][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 66.859729][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 66.868554][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 66.882795][ T4231] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 66.890879][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 66.900311][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 66.912444][ T4231] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.921655][ T4231] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.930660][ T4231] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.940602][ T4231] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.038684][ T4231] syz-executor (4231) used greatest stack depth: 20304 bytes left [ 67.135709][ T144] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 67.143700][ T144] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 67.158881][ T1198] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 67.178476][ T144] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 67.186983][ T144] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 67.201165][ T9] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 67.216690][ T3050] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 69.851316][ T9] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 71.178117][ T1420] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.184556][ T1420] ieee802154 phy1 wpan1: encryption failed: -22 [ 72.399110][ T9] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 72.472306][ T9] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 2026/09/12 23:25:13 executed programs: 0 [ 73.241826][ T4318] chnl_net:caif_netlink_parms(): no params data found [ 73.313116][ T4318] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.322607][ T4318] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.333202][ T4318] device bridge_slave_0 entered promiscuous mode [ 73.344084][ T4318] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.351499][ T4318] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.363077][ T4318] device bridge_slave_1 entered promiscuous mode [ 73.402109][ T4318] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 73.414122][ T4318] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 73.448318][ T4318] team0: Port device team_slave_0 added [ 73.456273][ T4318] team0: Port device team_slave_1 added [ 73.478463][ T4318] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 73.485438][ T4318] 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. [ 73.511875][ T4318] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 73.548416][ T4318] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 73.555393][ T4318] 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. [ 73.586759][ T4318] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 73.624131][ T4318] device hsr_slave_0 entered promiscuous mode [ 73.631176][ T4318] device hsr_slave_1 entered promiscuous mode [ 73.639982][ T4318] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 73.648243][ T4318] Cannot create hsr debugfs directory [ 73.866885][ T9] device hsr_slave_0 left promiscuous mode [ 73.873512][ T9] device hsr_slave_1 left promiscuous mode [ 73.881226][ T9] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 73.889342][ T9] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 73.898953][ T9] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 73.908804][ T9] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 73.917896][ T9] device bridge_slave_1 left promiscuous mode [ 73.924947][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.940556][ T9] device bridge_slave_0 left promiscuous mode [ 73.948275][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.973139][ T9] device veth1_macvtap left promiscuous mode [ 73.979983][ T9] device veth0_macvtap left promiscuous mode [ 73.989084][ T9] device veth1_vlan left promiscuous mode [ 73.995190][ T9] device veth0_vlan left promiscuous mode [ 74.161276][ T9] team0 (unregistering): Port device team_slave_1 removed [ 74.172944][ T9] team0 (unregistering): Port device team_slave_0 removed [ 74.188586][ T9] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 74.201691][ T9] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 74.249521][ T9] bond0 (unregistering): Released all slaves [ 74.559313][ T4318] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 74.568877][ T4318] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 74.578613][ T4318] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 74.596105][ T4318] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 74.687669][ T4318] 8021q: adding VLAN 0 to HW filter on device bond0 [ 74.717828][ T4366] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 74.727017][ T4366] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 74.747128][ T4318] 8021q: adding VLAN 0 to HW filter on device team0 [ 74.765565][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 74.776870][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 74.796138][ T144] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.803210][ T144] bridge0: port 1(bridge_slave_0) entered forwarding state [ 74.830104][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 74.846955][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 74.866617][ T144] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.873685][ T144] bridge0: port 2(bridge_slave_1) entered forwarding state [ 74.895987][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 74.926843][ T3050] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 74.946330][ T3050] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 74.964664][ T3050] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 74.988465][ T3050] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 75.014279][ T4318] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 75.027211][ T4318] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 75.040150][ T3050] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 75.048354][ T3050] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 75.058691][ T3050] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 75.072045][ T3050] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 75.081884][ T3050] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 75.092233][ T3050] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 75.100898][ T4303] Bluetooth: hci0: command 0x0409 tx timeout [ 75.109015][ T3050] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 75.119188][ T3050] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 75.313991][ T4318] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 75.337854][ T3050] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 75.345351][ T3050] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 75.387076][ T3050] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 75.396772][ T3050] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 75.425846][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 75.442251][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 75.452636][ T4318] device veth0_vlan entered promiscuous mode [ 75.459561][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 75.468060][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 75.483208][ T4318] device veth1_vlan entered promiscuous mode [ 75.512792][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 75.536486][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 75.550332][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 75.559266][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 75.578834][ T4318] device veth0_macvtap entered promiscuous mode [ 75.598890][ T4318] device veth1_macvtap entered promiscuous mode [ 75.621286][ T4318] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 75.632619][ T4318] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 75.643131][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 75.651522][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 75.665027][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 75.673980][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 75.683242][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 75.692518][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 75.704143][ T4318] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.719348][ T4318] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.730326][ T4318] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.745831][ T4318] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.859141][ T144] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 75.875965][ T144] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 75.893821][ T3050] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 75.922924][ T154] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 75.931786][ T154] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 75.948145][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 76.106852][ T4429] [ 76.109207][ T4429] ====================================================== [ 76.116245][ T4429] WARNING: possible circular locking dependency detected [ 76.123268][ T4429] syzkaller #0 Not tainted [ 76.127677][ T4429] ------------------------------------------------------ [ 76.134688][ T4429] syz.0.17/4429 is trying to acquire lock: [ 76.140483][ T4429] ffff888072281028 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 76.151541][ T4429] [ 76.151541][ T4429] but task is already holding lock: [ 76.158898][ T4429] ffffffff8d6d6128 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x1ae/0x560 [ 76.168562][ T4429] [ 76.168562][ T4429] which lock already depends on the new lock. [ 76.168562][ T4429] [ 76.178962][ T4429] [ 76.178962][ T4429] the existing dependency chain (in reverse order) is: [ 76.187971][ T4429] [ 76.187971][ T4429] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 76.195965][ T4429] __mutex_lock_common+0x1e5/0x2400 [ 76.201685][ T4429] mutex_lock_nested+0x17/0x20 [ 76.206958][ T4429] rfkill_register+0x2f/0x970 [ 76.212136][ T4429] hci_register_dev+0x459/0x980 [ 76.217491][ T4429] vhci_create_device+0x32e/0x5c0 [ 76.223017][ T4429] vhci_write+0x389/0x440 [ 76.227842][ T4429] vfs_write+0x748/0xd70 [ 76.232586][ T4429] ksys_write+0x153/0x260 [ 76.237415][ T4429] do_syscall_64+0x4c/0xa0 [ 76.242329][ T4429] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 76.248722][ T4429] [ 76.248722][ T4429] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 76.256514][ T4429] __mutex_lock_common+0x1e5/0x2400 [ 76.262212][ T4429] mutex_lock_nested+0x17/0x20 [ 76.267479][ T4429] vhci_send_frame+0x88/0x100 [ 76.272655][ T4429] hci_send_frame+0x1a9/0x2e0 [ 76.277832][ T4429] hci_tx_work+0x9b5/0x16d0 [ 76.282836][ T4429] process_one_work+0x867/0xff0 [ 76.288185][ T4429] worker_thread+0xad7/0x12a0 [ 76.293359][ T4429] kthread+0x42e/0x520 [ 76.297927][ T4429] ret_from_fork+0x1f/0x30 [ 76.302844][ T4429] [ 76.302844][ T4429] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 76.312025][ T4429] __flush_work+0x116/0x210 [ 76.317024][ T4429] hci_dev_do_close+0x201/0x1020 [ 76.322462][ T4429] hci_unregister_dev+0x2eb/0x590 [ 76.327985][ T4429] vhci_release+0x73/0xc0 [ 76.332816][ T4429] __fput+0x212/0x8c0 [ 76.337300][ T4429] task_work_run+0x125/0x1a0 [ 76.342387][ T4429] do_exit+0x635/0x2110 [ 76.347037][ T4429] do_group_exit+0x12c/0x2f0 [ 76.352126][ T4429] get_signal+0x7eb/0x12e0 [ 76.357038][ T4429] arch_do_signal_or_restart+0xe6/0x12a0 [ 76.363171][ T4429] exit_to_user_mode_loop+0x9e/0x130 [ 76.368955][ T4429] exit_to_user_mode_prepare+0xee/0x180 [ 76.374998][ T4429] syscall_exit_to_user_mode+0x16/0x40 [ 76.380957][ T4429] do_syscall_64+0x58/0xa0 [ 76.385871][ T4429] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 76.392266][ T4429] [ 76.392266][ T4429] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 76.399882][ T4429] __mutex_lock_common+0x1e5/0x2400 [ 76.405578][ T4429] mutex_lock_nested+0x17/0x20 [ 76.410843][ T4429] bg_scan_update+0x44/0x3b0 [ 76.415932][ T4429] process_one_work+0x867/0xff0 [ 76.421282][ T4429] worker_thread+0xad7/0x12a0 [ 76.426456][ T4429] kthread+0x42e/0x520 [ 76.431023][ T4429] ret_from_fork+0x1f/0x30 [ 76.435937][ T4429] [ 76.435937][ T4429] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 76.445725][ T4429] __lock_acquire+0x2c66/0x7b50 [ 76.451079][ T4429] lock_acquire+0x19e/0x400 [ 76.456078][ T4429] __flush_work+0x116/0x210 [ 76.461079][ T4429] __cancel_work_timer+0x3f4/0x560 [ 76.466686][ T4429] hci_request_cancel_all+0xcc/0x300 [ 76.472480][ T4429] hci_dev_do_close+0x4e/0x1020 [ 76.477830][ T4429] hci_rfkill_set_block+0x101/0x180 [ 76.483529][ T4429] rfkill_set_block+0x1c1/0x3c0 [ 76.488878][ T4429] rfkill_fop_write+0x453/0x560 [ 76.494225][ T4429] vfs_write+0x304/0xd70 [ 76.498974][ T4429] ksys_write+0x153/0x260 [ 76.503805][ T4429] do_syscall_64+0x4c/0xa0 [ 76.508858][ T4429] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 76.515284][ T4429] [ 76.515284][ T4429] other info that might help us debug this: [ 76.515284][ T4429] [ 76.525497][ T4429] Chain exists of: [ 76.525497][ T4429] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 76.525497][ T4429] [ 76.541198][ T4429] Possible unsafe locking scenario: [ 76.541198][ T4429] [ 76.548623][ T4429] CPU0 CPU1 [ 76.553964][ T4429] ---- ---- [ 76.559302][ T4429] lock(rfkill_global_mutex); [ 76.564047][ T4429] lock(&data->open_mutex); [ 76.571130][ T4429] lock(rfkill_global_mutex); [ 76.578390][ T4429] lock((work_completion)(&hdev->bg_scan_update)); [ 76.584955][ T4429] [ 76.584955][ T4429] *** DEADLOCK *** [ 76.584955][ T4429] [ 76.593072][ T4429] 1 lock held by syz.0.17/4429: [ 76.597897][ T4429] #0: ffffffff8d6d6128 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x1ae/0x560 [ 76.607984][ T4429] [ 76.607984][ T4429] stack backtrace: [ 76.613859][ T4429] CPU: 1 PID: 4429 Comm: syz.0.17 Not tainted syzkaller #0 [ 76.621031][ T4429] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 76.631071][ T4429] Call Trace: [ 76.634333][ T4429] [ 76.637246][ T4429] dump_stack_lvl+0x188/0x250 [ 76.641909][ T4429] ? load_image+0x410/0x410 [ 76.646389][ T4429] ? show_regs_print_info+0x20/0x20 [ 76.651570][ T4429] ? print_circular_bug+0x12b/0x1a0 [ 76.656746][ T4429] check_noncircular+0x296/0x330 [ 76.661662][ T4429] ? look_up_lock_class+0x71/0x110 [ 76.666754][ T4429] ? add_chain_block+0x9b0/0x9b0 [ 76.671694][ T4429] ? lockdep_lock+0xf1/0x1f0 [ 76.676268][ T4429] ? __lock_acquire+0x1305/0x7b50 [ 76.681275][ T4429] ? mark_lock+0x94/0x320 [ 76.685580][ T4429] ? _find_first_zero_bit+0xd1/0xf0 [ 76.690759][ T4429] __lock_acquire+0x2c66/0x7b50 [ 76.695591][ T4429] ? verify_lock_unused+0x140/0x140 [ 76.700774][ T4429] ? verify_lock_unused+0x140/0x140 [ 76.705957][ T4429] lock_acquire+0x19e/0x400 [ 76.710442][ T4429] ? __flush_work+0xfa/0x210 [ 76.715026][ T4429] ? __lock_acquire+0x7b50/0x7b50 [ 76.720032][ T4429] ? read_lock_is_recursive+0x10/0x10 [ 76.725385][ T4429] ? start_flush_work+0x784/0x830 [ 76.730398][ T4429] __flush_work+0x116/0x210 [ 76.734880][ T4429] ? __flush_work+0xfa/0x210 [ 76.739448][ T4429] ? flush_work+0x20/0x20 [ 76.743754][ T4429] ? try_to_grab_pending+0xfb/0x820 [ 76.748931][ T4429] ? mark_lock+0x94/0x320 [ 76.753242][ T4429] ? lockdep_hardirqs_on_prepare+0x448/0x7c0 [ 76.759203][ T4429] ? lock_chain_count+0x20/0x20 [ 76.764034][ T4429] ? mark_lock+0x94/0x320 [ 76.768343][ T4429] ? __cancel_work_timer+0x36a/0x560 [ 76.773604][ T4429] __cancel_work_timer+0x3f4/0x560 [ 76.778697][ T4429] ? cancel_work_sync+0x20/0x20 [ 76.783521][ T4429] ? __cancel_work+0x1f9/0x2e0 [ 76.788262][ T4429] ? lockdep_hardirqs_on+0x94/0x140 [ 76.793441][ T4429] ? __cancel_work+0x27b/0x2e0 [ 76.798179][ T4429] ? cancel_work+0x20/0x20 [ 76.802574][ T4429] hci_request_cancel_all+0xcc/0x300 [ 76.807838][ T4429] hci_dev_do_close+0x4e/0x1020 [ 76.812666][ T4429] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 76.818547][ T4429] ? _raw_spin_unlock+0x40/0x40 [ 76.823376][ T4429] hci_rfkill_set_block+0x101/0x180 [ 76.828554][ T4429] ? rcu_lock_release+0x20/0x20 [ 76.833383][ T4429] rfkill_set_block+0x1c1/0x3c0 [ 76.838220][ T4429] rfkill_fop_write+0x453/0x560 [ 76.843050][ T4429] ? rfkill_fop_read+0x560/0x560 [ 76.847964][ T4429] ? common_file_perm+0x110/0x1c0 [ 76.852970][ T4429] ? fsnotify_perm+0x5d/0x560 [ 76.857627][ T4429] ? security_file_permission+0x75/0xa0 [ 76.863163][ T4429] ? rfkill_fop_read+0x560/0x560 [ 76.868077][ T4429] vfs_write+0x304/0xd70 [ 76.872304][ T4429] ? file_end_write+0x250/0x250 [ 76.877132][ T4429] ? __context_tracking_exit+0x4c/0x80 [ 76.882576][ T4429] ? __fdget_pos+0x1e2/0x370 [ 76.887146][ T4429] ksys_write+0x153/0x260 [ 76.891453][ T4429] ? __ia32_sys_read+0x80/0x80 [ 76.896196][ T4429] ? lockdep_hardirqs_on+0x94/0x140 [ 76.901374][ T4429] do_syscall_64+0x4c/0xa0 [ 76.905767][ T4429] ? clear_bhb_loop+0x30/0x80 [ 76.910423][ T4429] ? clear_bhb_loop+0x30/0x80 [ 76.915078][ T4429] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 76.920959][ T4429] RIP: 0033:0x7fd8d4957159 [ 76.925362][ T4429] 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 [ 76.944956][ T4429] RSP: 002b:00007ffce1ef6698 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 76.953356][ T4429] RAX: ffffffffffffffda RBX: 00007fd8d4bdefa0 RCX: 00007fd8d4957159 [ 76.961312][ T4429] RDX: 0000000000000008 RSI: 0000200000000080 RDI: 0000000000000003 [ 76.969266][ T4429] RBP: 00007fd8d49ee03b R08: 0000000000000000 R09: 0000000000000000 [ 76.977216][ T4429] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 76.985164][ T4429] R13: 00007fd8d4bdefac R14: 00007fd8d4bdefa0 R15: 00007fd8d4bdefa0 [ 76.993123][ T4429]