Warning: Permanently added '10.128.0.81' (ED25519) to the list of known hosts. 2026/06/27 11:21:40 parsed 1 programs 2026/06/27 11:21:40 serving rpc on tcp://36303 [ 68.566508][ T4201] cgroup: Unknown subsys name 'net' [ 68.680424][ T4201] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 70.164309][ T4201] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 71.442181][ T1420] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.449014][ T1420] ieee802154 phy1 wpan1: encryption failed: -22 [ 72.960514][ T4236] chnl_net:caif_netlink_parms(): no params data found [ 73.039017][ T4236] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.046859][ T4236] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.059763][ T4236] device bridge_slave_0 entered promiscuous mode [ 73.078349][ T4236] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.085707][ T4236] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.095837][ T4236] device bridge_slave_1 entered promiscuous mode [ 73.126229][ T4236] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 73.139373][ T4236] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 73.172531][ T4236] team0: Port device team_slave_0 added [ 73.180832][ T4236] team0: Port device team_slave_1 added [ 73.205863][ T4236] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 73.214258][ T4236] 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. [ 73.243504][ T4236] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 73.257605][ T4236] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 73.266845][ T4236] 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. [ 73.298842][ T4236] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 73.344010][ T4236] device hsr_slave_0 entered promiscuous mode [ 73.352517][ T4236] device hsr_slave_1 entered promiscuous mode [ 73.506493][ T4236] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 73.521884][ T4236] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 73.534415][ T4236] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 73.545496][ T4236] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 73.582814][ T4236] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.590339][ T4236] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.599375][ T4236] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.606520][ T4236] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.676227][ T4236] 8021q: adding VLAN 0 to HW filter on device bond0 [ 73.696173][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 73.712579][ T155] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.723665][ T155] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.732996][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 73.750431][ T4236] 8021q: adding VLAN 0 to HW filter on device team0 [ 73.763590][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 73.775421][ T155] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.782784][ T155] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.815807][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 73.825238][ T155] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.832396][ T155] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.855120][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 73.865641][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 73.884703][ T4236] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 73.895854][ T4236] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 73.911398][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 73.922980][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 73.933499][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 73.949887][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 74.065719][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 74.083455][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 74.100133][ T4236] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 74.119502][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 74.128363][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 74.155596][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 74.164356][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 74.180319][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 74.214106][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 74.233713][ T4236] device veth0_vlan entered promiscuous mode [ 74.252052][ T4236] device veth1_vlan entered promiscuous mode [ 74.304229][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 74.314058][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 74.324182][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 74.333531][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 74.345315][ T4236] device veth0_macvtap entered promiscuous mode [ 74.355527][ T4236] device veth1_macvtap entered promiscuous mode [ 74.372425][ T4236] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 74.382075][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 74.390673][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 74.400657][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 74.411101][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 74.424654][ T4236] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 74.433782][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 74.443200][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 74.464235][ T4236] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.473850][ T4236] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.483268][ T4236] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.492730][ T4236] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.627339][ T4236] syz-executor (4236) used greatest stack depth: 20688 bytes left [ 75.085439][ T1442] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 75.099102][ T1442] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 75.119469][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 75.145756][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 75.154135][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 75.163759][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2026/06/27 11:21:50 executed programs: 0 [ 76.501302][ T4296] chnl_net:caif_netlink_parms(): no params data found [ 76.576558][ T4296] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.584358][ T4296] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.593771][ T4296] device bridge_slave_0 entered promiscuous mode [ 76.602759][ T4296] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.610454][ T4296] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.619146][ T4296] device bridge_slave_1 entered promiscuous mode [ 76.648641][ T4296] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 76.660584][ T4296] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 76.684794][ T144] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 76.709210][ T4296] team0: Port device team_slave_0 added [ 76.716756][ T4296] team0: Port device team_slave_1 added [ 76.733730][ T4296] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 76.740891][ T4296] 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. [ 76.766995][ T4296] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 76.779204][ T4296] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 76.786240][ T4296] 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. [ 76.812760][ T4296] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 76.843091][ T4296] device hsr_slave_0 entered promiscuous mode [ 76.850771][ T4296] device hsr_slave_1 entered promiscuous mode [ 76.857886][ T4296] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 76.866640][ T4296] Cannot create hsr debugfs directory [ 78.389485][ T1107] Bluetooth: hci0: command 0x0409 tx timeout [ 80.026368][ T144] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 80.066034][ T144] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 80.136766][ T144] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 80.475633][ T4245] Bluetooth: hci0: command 0x041b tx timeout [ 81.077643][ T4296] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 81.092992][ T4296] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 81.109597][ T4296] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 81.120909][ T4296] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 81.191756][ T4296] 8021q: adding VLAN 0 to HW filter on device bond0 [ 81.233501][ T4296] 8021q: adding VLAN 0 to HW filter on device team0 [ 81.241552][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 81.250671][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 81.286598][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 81.296058][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 81.305662][ T154] bridge0: port 1(bridge_slave_0) entered blocking state [ 81.313391][ T154] bridge0: port 1(bridge_slave_0) entered forwarding state [ 81.323519][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 81.333987][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 81.346070][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 81.355006][ T154] bridge0: port 2(bridge_slave_1) entered blocking state [ 81.362134][ T154] bridge0: port 2(bridge_slave_1) entered forwarding state [ 81.397004][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 81.410997][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 81.422981][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 81.432841][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 81.441869][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 81.470052][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 81.480134][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 81.491766][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 81.500472][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 81.534441][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 81.543255][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 81.554777][ T4296] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 81.651406][ T144] device hsr_slave_0 left promiscuous mode [ 81.659197][ T144] device hsr_slave_1 left promiscuous mode [ 81.666617][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 81.675227][ T144] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 81.690246][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 81.697702][ T144] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 81.706742][ T144] device bridge_slave_1 left promiscuous mode [ 81.714780][ T144] bridge0: port 2(bridge_slave_1) entered disabled state [ 81.733415][ T144] device bridge_slave_0 left promiscuous mode [ 81.739905][ T144] bridge0: port 1(bridge_slave_0) entered disabled state [ 81.762369][ T144] device veth1_macvtap left promiscuous mode [ 81.769074][ T144] device veth0_macvtap left promiscuous mode [ 81.775181][ T144] device veth1_vlan left promiscuous mode [ 81.782605][ T144] device veth0_vlan left promiscuous mode [ 81.971364][ T144] team0 (unregistering): Port device team_slave_1 removed [ 81.989674][ T144] team0 (unregistering): Port device team_slave_0 removed [ 82.004218][ T144] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 82.018161][ T144] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 82.084982][ T144] bond0 (unregistering): Released all slaves [ 82.171621][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 82.179461][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 82.193945][ T4296] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 82.219442][ T4351] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 82.231023][ T4351] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 82.258023][ T1442] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 82.270298][ T1442] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 82.281031][ T1442] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 82.289028][ T1442] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 82.302253][ T4296] device veth0_vlan entered promiscuous mode [ 82.316242][ T4296] device veth1_vlan entered promiscuous mode [ 82.343578][ T4351] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 82.352867][ T4351] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 82.361753][ T4351] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 82.371689][ T4351] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 82.383382][ T4296] device veth0_macvtap entered promiscuous mode [ 82.411303][ T4296] device veth1_macvtap entered promiscuous mode [ 82.430645][ T4296] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 82.438114][ T4351] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 82.446462][ T4351] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 82.455024][ T4351] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 82.464327][ T4351] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 82.479063][ T4296] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 82.486945][ T4351] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 82.496153][ T4351] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 82.516526][ T4296] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 82.525678][ T4296] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 82.535375][ T4296] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 82.544563][ T4296] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 82.553484][ T4245] Bluetooth: hci0: command 0x040f tx timeout [ 82.617989][ T4351] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 82.629245][ T4351] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 82.659657][ T4351] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 82.674341][ T1442] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 82.684230][ T1442] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 82.692504][ T4351] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 82.813018][ T4356] [ 82.815695][ T4356] ====================================================== [ 82.822928][ T4356] WARNING: possible circular locking dependency detected [ 82.831513][ T4356] syzkaller #0 Not tainted [ 82.836039][ T4356] ------------------------------------------------------ [ 82.843273][ T4356] syz.0.17/4356 is trying to acquire lock: [ 82.849371][ T4356] ffff888074469028 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 82.860753][ T4356] [ 82.860753][ T4356] but task is already holding lock: [ 82.868224][ T4356] ffffffff8d6c48a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x1ae/0x560 [ 82.877918][ T4356] [ 82.877918][ T4356] which lock already depends on the new lock. [ 82.877918][ T4356] [ 82.889152][ T4356] [ 82.889152][ T4356] the existing dependency chain (in reverse order) is: [ 82.898293][ T4356] [ 82.898293][ T4356] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 82.906321][ T4356] __mutex_lock_common+0x1e5/0x2400 [ 82.912077][ T4356] mutex_lock_nested+0x17/0x20 [ 82.917389][ T4356] rfkill_register+0x2f/0x970 [ 82.922615][ T4356] hci_register_dev+0x459/0x980 [ 82.928031][ T4356] vhci_create_device+0x32e/0x5c0 [ 82.933621][ T4356] vhci_write+0x389/0x440 [ 82.938592][ T4356] vfs_write+0x748/0xd70 [ 82.943414][ T4356] ksys_write+0x153/0x260 [ 82.948401][ T4356] do_syscall_64+0x4c/0xa0 [ 82.953367][ T4356] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 82.959844][ T4356] [ 82.959844][ T4356] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 82.967715][ T4356] __mutex_lock_common+0x1e5/0x2400 [ 82.973475][ T4356] mutex_lock_nested+0x17/0x20 [ 82.978899][ T4356] vhci_send_frame+0x88/0x100 [ 82.984126][ T4356] hci_send_frame+0x1a9/0x2e0 [ 82.989358][ T4356] hci_tx_work+0x9b5/0x16d0 [ 82.994411][ T4356] process_one_work+0x867/0xff0 [ 82.999905][ T4356] worker_thread+0xad7/0x12a0 [ 83.005129][ T4356] kthread+0x42e/0x520 [ 83.009762][ T4356] ret_from_fork+0x1f/0x30 [ 83.014908][ T4356] [ 83.014908][ T4356] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 83.024275][ T4356] __flush_work+0x116/0x210 [ 83.029350][ T4356] hci_dev_do_close+0x201/0x1020 [ 83.034843][ T4356] hci_unregister_dev+0x2eb/0x590 [ 83.040434][ T4356] vhci_release+0x73/0xc0 [ 83.045416][ T4356] __fput+0x212/0x8c0 [ 83.050091][ T4356] task_work_run+0x125/0x1a0 [ 83.055280][ T4356] do_exit+0x635/0x2110 [ 83.060265][ T4356] do_group_exit+0x12c/0x2f0 [ 83.065554][ T4356] get_signal+0x7eb/0x12e0 [ 83.070606][ T4356] arch_do_signal_or_restart+0xe6/0x12a0 [ 83.076800][ T4356] exit_to_user_mode_loop+0x9e/0x130 [ 83.082738][ T4356] exit_to_user_mode_prepare+0xee/0x180 [ 83.088932][ T4356] syscall_exit_to_user_mode+0x16/0x40 [ 83.094960][ T4356] do_syscall_64+0x58/0xa0 [ 83.100123][ T4356] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 83.106610][ T4356] [ 83.106610][ T4356] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 83.114513][ T4356] __mutex_lock_common+0x1e5/0x2400 [ 83.120837][ T4356] mutex_lock_nested+0x17/0x20 [ 83.126449][ T4356] bg_scan_update+0x44/0x3b0 [ 83.131763][ T4356] process_one_work+0x867/0xff0 [ 83.137389][ T4356] worker_thread+0xad7/0x12a0 [ 83.142725][ T4356] kthread+0x42e/0x520 [ 83.147344][ T4356] ret_from_fork+0x1f/0x30 [ 83.152826][ T4356] [ 83.152826][ T4356] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 83.162684][ T4356] __lock_acquire+0x2c66/0x7b50 [ 83.168198][ T4356] lock_acquire+0x19e/0x400 [ 83.173272][ T4356] __flush_work+0x116/0x210 [ 83.178506][ T4356] __cancel_work_timer+0x3f4/0x560 [ 83.184589][ T4356] hci_request_cancel_all+0xcc/0x300 [ 83.190439][ T4356] hci_dev_do_close+0x4e/0x1020 [ 83.195855][ T4356] hci_rfkill_set_block+0x101/0x180 [ 83.201698][ T4356] rfkill_set_block+0x1c1/0x3c0 [ 83.207267][ T4356] rfkill_fop_write+0x453/0x560 [ 83.212745][ T4356] vfs_write+0x304/0xd70 [ 83.217561][ T4356] ksys_write+0x153/0x260 [ 83.222440][ T4356] do_syscall_64+0x4c/0xa0 [ 83.227447][ T4356] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 83.234080][ T4356] [ 83.234080][ T4356] other info that might help us debug this: [ 83.234080][ T4356] [ 83.244330][ T4356] Chain exists of: [ 83.244330][ T4356] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 83.244330][ T4356] [ 83.260191][ T4356] Possible unsafe locking scenario: [ 83.260191][ T4356] [ 83.267672][ T4356] CPU0 CPU1 [ 83.273072][ T4356] ---- ---- [ 83.278641][ T4356] lock(rfkill_global_mutex); [ 83.283596][ T4356] lock(&data->open_mutex); [ 83.290740][ T4356] lock(rfkill_global_mutex); [ 83.298069][ T4356] lock((work_completion)(&hdev->bg_scan_update)); [ 83.305542][ T4356] [ 83.305542][ T4356] *** DEADLOCK *** [ 83.305542][ T4356] [ 83.313718][ T4356] 1 lock held by syz.0.17/4356: [ 83.318596][ T4356] #0: ffffffff8d6c48a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x1ae/0x560 [ 83.328820][ T4356] [ 83.328820][ T4356] stack backtrace: [ 83.334750][ T4356] CPU: 0 PID: 4356 Comm: syz.0.17 Not tainted syzkaller #0 [ 83.342073][ T4356] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 83.352660][ T4356] Call Trace: [ 83.355974][ T4356] [ 83.358936][ T4356] dump_stack_lvl+0x188/0x250 [ 83.363794][ T4356] ? load_image+0x410/0x410 [ 83.368327][ T4356] ? show_regs_print_info+0x20/0x20 [ 83.373560][ T4356] ? print_circular_bug+0x12b/0x1a0 [ 83.378795][ T4356] check_noncircular+0x296/0x330 [ 83.383853][ T4356] ? look_up_lock_class+0x71/0x110 [ 83.388999][ T4356] ? add_chain_block+0x9b0/0x9b0 [ 83.394553][ T4356] ? lockdep_lock+0xf1/0x1f0 [ 83.399180][ T4356] ? __lock_acquire+0x1305/0x7b50 [ 83.404497][ T4356] ? mark_lock+0x94/0x320 [ 83.408851][ T4356] ? _find_first_zero_bit+0xd1/0xf0 [ 83.414177][ T4356] __lock_acquire+0x2c66/0x7b50 [ 83.419098][ T4356] ? verify_lock_unused+0x140/0x140 [ 83.424760][ T4356] ? verify_lock_unused+0x140/0x140 [ 83.430028][ T4356] lock_acquire+0x19e/0x400 [ 83.434586][ T4356] ? __flush_work+0xfa/0x210 [ 83.439303][ T4356] ? __lock_acquire+0x7b50/0x7b50 [ 83.445472][ T4356] ? read_lock_is_recursive+0x10/0x10 [ 83.450992][ T4356] ? start_flush_work+0x784/0x830 [ 83.456680][ T4356] __flush_work+0x116/0x210 [ 83.461223][ T4356] ? __flush_work+0xfa/0x210 [ 83.465939][ T4356] ? flush_work+0x20/0x20 [ 83.470308][ T4356] ? try_to_grab_pending+0xfb/0x820 [ 83.475556][ T4356] ? mark_lock+0x94/0x320 [ 83.479917][ T4356] ? lockdep_hardirqs_on_prepare+0x448/0x7c0 [ 83.485935][ T4356] ? lock_chain_count+0x20/0x20 [ 83.490967][ T4356] ? mark_lock+0x94/0x320 [ 83.495419][ T4356] ? __cancel_work_timer+0x36a/0x560 [ 83.500733][ T4356] __cancel_work_timer+0x3f4/0x560 [ 83.505886][ T4356] ? cancel_work_sync+0x20/0x20 [ 83.510862][ T4356] ? __cancel_work+0x1f9/0x2e0 [ 83.515748][ T4356] ? lockdep_hardirqs_on+0x94/0x140 [ 83.520988][ T4356] ? __cancel_work+0x27b/0x2e0 [ 83.525853][ T4356] ? cancel_work+0x20/0x20 [ 83.530313][ T4356] hci_request_cancel_all+0xcc/0x300 [ 83.535639][ T4356] hci_dev_do_close+0x4e/0x1020 [ 83.540585][ T4356] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 83.546537][ T4356] ? _raw_spin_unlock+0x40/0x40 [ 83.551420][ T4356] hci_rfkill_set_block+0x101/0x180 [ 83.556656][ T4356] ? rcu_lock_release+0x20/0x20 [ 83.561549][ T4356] rfkill_set_block+0x1c1/0x3c0 [ 83.566441][ T4356] rfkill_fop_write+0x453/0x560 [ 83.571343][ T4356] ? rfkill_fop_read+0x560/0x560 [ 83.576315][ T4356] ? common_file_perm+0x120/0x1c0 [ 83.581371][ T4356] ? fsnotify_perm+0x5d/0x560 [ 83.587084][ T4356] ? security_file_permission+0x75/0xa0 [ 83.592934][ T4356] ? rfkill_fop_read+0x560/0x560 [ 83.598468][ T4356] vfs_write+0x304/0xd70 [ 83.602747][ T4356] ? file_end_write+0x250/0x250 [ 83.607637][ T4356] ? __context_tracking_exit+0x4c/0x80 [ 83.613131][ T4356] ? __fdget_pos+0x1e2/0x370 [ 83.617757][ T4356] ksys_write+0x153/0x260 [ 83.622126][ T4356] ? __ia32_sys_read+0x80/0x80 [ 83.626945][ T4356] ? lockdep_hardirqs_on+0x94/0x140 [ 83.632191][ T4356] do_syscall_64+0x4c/0xa0 [ 83.636641][ T4356] ? clear_bhb_loop+0x30/0x80 [ 83.641342][ T4356] ? clear_bhb_loop+0x30/0x80 [ 83.646159][ T4356] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 83.652102][ T4356] RIP: 0033:0x7f1130b74e59 [ 83.656550][ T4356] 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 [ 83.676405][ T4356] RSP: 002b:00007ffefdd63c38 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 83.684890][ T4356] RAX: ffffffffffffffda RBX: 00007f1130dedfa0 RCX: 00007f1130b74e59 [ 83.692896][ T4356] RDX: 0000000000000008 RSI: 0000200000000140 RDI: 0000000000000003 [ 83.700935][ T4356] RBP: 00007f1130c0ae6f R08: 0000000000000000 R09: 0000000000000000 [ 83.708934][ T4356] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 83.717281][ T4356] R13: 00007f1130dedfac R14: 00007f1130dedfa0 R15: 00007f1130dedfa0 [ 83.725294][ T4356]