Warning: Permanently added '10.128.1.17' (ED25519) to the list of known hosts. 2025/08/16 04:08:52 ignoring optional flag "sandboxArg"="0" 2025/08/16 04:08:53 parsed 1 programs [ 52.513248][ T4188] cgroup: Unknown subsys name 'net' [ 52.665241][ T4188] cgroup: Unknown subsys name 'rlimit' [ 53.866172][ T4188] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 56.332618][ T4237] chnl_net:caif_netlink_parms(): no params data found [ 56.391246][ T4237] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.398376][ T4237] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.406633][ T4237] device bridge_slave_0 entered promiscuous mode [ 56.416343][ T4237] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.423737][ T4237] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.431843][ T4237] device bridge_slave_1 entered promiscuous mode [ 56.457885][ T4237] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 56.469130][ T4237] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 56.497116][ T4237] team0: Port device team_slave_0 added [ 56.504861][ T4237] team0: Port device team_slave_1 added [ 56.527833][ T4237] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 56.535012][ T4237] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 56.560931][ T4237] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 56.573893][ T4237] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 56.580903][ T4237] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 56.606861][ T4237] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 56.638749][ T4237] device hsr_slave_0 entered promiscuous mode [ 56.645785][ T4237] device hsr_slave_1 entered promiscuous mode [ 56.762717][ T4237] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 56.774508][ T4237] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 56.785634][ T4237] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 56.796248][ T4237] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 56.821340][ T4237] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.828473][ T4237] bridge0: port 2(bridge_slave_1) entered forwarding state [ 56.836327][ T4237] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.843396][ T4237] bridge0: port 1(bridge_slave_0) entered forwarding state [ 56.904610][ T4237] 8021q: adding VLAN 0 to HW filter on device bond0 [ 56.927324][ T1239] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 56.966819][ T1239] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.984184][ T1239] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.012580][ T4237] 8021q: adding VLAN 0 to HW filter on device team0 [ 57.027379][ T1239] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 57.037145][ T1239] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 57.045615][ T1239] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.052667][ T1239] bridge0: port 1(bridge_slave_0) entered forwarding state [ 57.072243][ T1239] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 57.081250][ T1239] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 57.089560][ T1239] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.096689][ T1239] bridge0: port 2(bridge_slave_1) entered forwarding state [ 57.104451][ T1239] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 57.113316][ T1239] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 57.122768][ T1239] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 57.132423][ T1239] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 57.141321][ T1239] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 57.149820][ T1239] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 57.158392][ T1239] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 57.171620][ T1239] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 57.180053][ T1239] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 57.193513][ T1239] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 57.202403][ T1239] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 57.214790][ T4237] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 57.281544][ T1239] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 57.289044][ T1239] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 57.302117][ T4237] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 57.333693][ T1239] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 57.343097][ T1239] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 57.359148][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 57.367738][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 57.378054][ T4237] device veth0_vlan entered promiscuous mode [ 57.385730][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 57.393730][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 57.418008][ T4237] device veth1_vlan entered promiscuous mode [ 57.440234][ T375] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 57.450805][ T375] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 57.458691][ T375] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 57.467581][ T375] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 57.477996][ T4237] device veth0_macvtap entered promiscuous mode [ 57.500679][ T4237] device veth1_macvtap entered promiscuous mode [ 57.515388][ T4237] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 57.523037][ T375] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 57.532067][ T375] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 57.540702][ T375] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 57.549596][ T375] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 57.560587][ T4237] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 57.567869][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 57.576890][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 57.604990][ T4237] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 57.614412][ T4237] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 57.623346][ T4237] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 57.632340][ T4237] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 57.897839][ T375] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 57.916611][ T375] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 57.923105][ T144] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 57.926811][ T1239] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 57.939253][ T144] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 57.961738][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2025/08/16 04:09:00 executed programs: 0 [ 58.918146][ T4292] chnl_net:caif_netlink_parms(): no params data found [ 58.983413][ T4292] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.990588][ T4292] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.998590][ T4292] device bridge_slave_0 entered promiscuous mode [ 59.010121][ T4292] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.017687][ T4292] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.029343][ T4292] device bridge_slave_1 entered promiscuous mode [ 59.057596][ T4292] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.068972][ T4292] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.095545][ T4292] team0: Port device team_slave_0 added [ 59.103318][ T4292] team0: Port device team_slave_1 added [ 59.127675][ T4292] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 59.135014][ T4292] 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. [ 59.162312][ T4292] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 59.176352][ T4292] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 59.183581][ T4292] 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. [ 59.209896][ T4292] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 59.242238][ T4292] device hsr_slave_0 entered promiscuous mode [ 59.249058][ T4292] device hsr_slave_1 entered promiscuous mode [ 59.255915][ T4292] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 59.264113][ T4292] Cannot create hsr debugfs directory [ 59.347591][ T4292] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 60.791129][ T4261] Bluetooth: hci0: command 0x0409 tx timeout [ 62.576314][ T4292] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 62.797008][ T4292] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 62.867094][ T4292] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 62.877465][ T1325] Bluetooth: hci0: command 0x041b tx timeout [ 62.975179][ T4292] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 62.984844][ T4292] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 62.999430][ T4292] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 63.009175][ T4292] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 63.063526][ T4292] 8021q: adding VLAN 0 to HW filter on device bond0 [ 63.074514][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 63.082617][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 63.093287][ T4292] 8021q: adding VLAN 0 to HW filter on device team0 [ 63.117176][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 63.126371][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 63.135267][ T154] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.142353][ T154] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.151378][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 63.175419][ T4280] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 63.184059][ T4280] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 63.193602][ T4280] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.200703][ T4280] bridge0: port 2(bridge_slave_1) entered forwarding state [ 63.212856][ T4280] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 63.237453][ T4280] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 63.248772][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 63.257861][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 63.267593][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 63.288189][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 63.298238][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 63.309355][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 63.317898][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 63.328701][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 63.337713][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 63.349188][ T4292] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 63.438194][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 63.446187][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 63.465887][ T4292] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 63.482921][ T4280] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 63.492476][ T4280] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 63.516388][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 63.524669][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 63.534623][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 63.542379][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 63.554871][ T9] device hsr_slave_0 left promiscuous mode [ 63.561294][ T9] device hsr_slave_1 left promiscuous mode [ 63.567665][ T9] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 63.575555][ T9] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 63.584651][ T9] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 63.592343][ T9] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 63.599890][ T9] device bridge_slave_1 left promiscuous mode [ 63.606828][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.618690][ T9] device bridge_slave_0 left promiscuous mode [ 63.625904][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.642603][ T9] device veth1_macvtap left promiscuous mode [ 63.648734][ T9] device veth0_macvtap left promiscuous mode [ 63.654822][ T9] device veth1_vlan left promiscuous mode [ 63.661564][ T9] device veth0_vlan left promiscuous mode [ 63.788555][ T9] team0 (unregistering): Port device team_slave_1 removed [ 63.802235][ T9] team0 (unregistering): Port device team_slave_0 removed [ 63.814263][ T9] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 63.827370][ T9] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 63.875166][ T9] bond0 (unregistering): Released all slaves [ 63.924896][ T4292] device veth0_vlan entered promiscuous mode [ 63.937734][ T4292] device veth1_vlan entered promiscuous mode [ 63.955132][ T4280] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 63.963427][ T4280] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 63.974151][ T4280] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 63.982598][ T4280] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 63.993251][ T4292] device veth0_macvtap entered promiscuous mode [ 64.003325][ T4292] device veth1_macvtap entered promiscuous mode [ 64.018392][ T4292] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 64.031957][ T4292] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 64.040272][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 64.048666][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 64.057511][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 64.066694][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 64.075616][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 64.084469][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 64.095435][ T4292] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 64.104245][ T4292] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 64.113303][ T4292] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 64.122249][ T4292] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 64.176541][ T4280] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 64.187650][ T4280] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 64.197731][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 64.221721][ T154] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 64.229650][ T154] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 64.238603][ T4280] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 64.321419][ T4311] [ 64.323866][ T4311] ====================================================== [ 64.330877][ T4311] WARNING: possible circular locking dependency detected [ 64.337903][ T4311] 5.15.189-syzkaller #0 Not tainted [ 64.343093][ T4311] ------------------------------------------------------ [ 64.350105][ T4311] syz.0.17/4311 is trying to acquire lock: [ 64.355905][ T4311] ffff88802bcc4c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xc1/0x1b0 [ 64.366985][ T4311] [ 64.366985][ T4311] but task is already holding lock: [ 64.374348][ T4311] ffffffff8d4be228 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 64.384014][ T4311] [ 64.384014][ T4311] which lock already depends on the new lock. [ 64.384014][ T4311] [ 64.394415][ T4311] [ 64.394415][ T4311] the existing dependency chain (in reverse order) is: [ 64.403425][ T4311] [ 64.403425][ T4311] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 64.411421][ T4311] __mutex_lock_common+0x1eb/0x2390 [ 64.417164][ T4311] mutex_lock_nested+0x17/0x20 [ 64.422628][ T4311] rfkill_register+0x33/0x8a0 [ 64.427834][ T4311] hci_register_dev+0x452/0x970 [ 64.433211][ T4311] vhci_create_device+0x32c/0x5c0 [ 64.438760][ T4311] vhci_write+0x391/0x450 [ 64.443616][ T4311] vfs_write+0x712/0xd00 [ 64.448380][ T4311] ksys_write+0x14d/0x250 [ 64.453229][ T4311] do_syscall_64+0x4c/0xa0 [ 64.458274][ T4311] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 64.464825][ T4311] [ 64.464825][ T4311] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 64.472993][ T4311] __mutex_lock_common+0x1eb/0x2390 [ 64.478720][ T4311] mutex_lock_nested+0x17/0x20 [ 64.484101][ T4311] vhci_send_frame+0x88/0x100 [ 64.489304][ T4311] hci_send_frame+0x1a9/0x2e0 [ 64.494505][ T4311] hci_tx_work+0x9f9/0x1710 [ 64.499533][ T4311] process_one_work+0x863/0x1000 [ 64.505011][ T4311] worker_thread+0xaa8/0x12a0 [ 64.510220][ T4311] kthread+0x436/0x520 [ 64.514898][ T4311] ret_from_fork+0x1f/0x30 [ 64.519841][ T4311] [ 64.519841][ T4311] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 64.529050][ T4311] __flush_work+0xdd/0x1b0 [ 64.533991][ T4311] hci_dev_do_close+0x1e7/0x1030 [ 64.539455][ T4311] hci_unregister_dev+0x2d7/0x580 [ 64.545177][ T4311] vhci_release+0x73/0xc0 [ 64.550036][ T4311] __fput+0x234/0x930 [ 64.554555][ T4311] task_work_run+0x125/0x1a0 [ 64.559675][ T4311] do_exit+0x61e/0x20a0 [ 64.564355][ T4311] do_group_exit+0x12e/0x300 [ 64.569468][ T4311] get_signal+0x6ca/0x12c0 [ 64.574488][ T4311] arch_do_signal_or_restart+0xc1/0x1300 [ 64.580642][ T4311] exit_to_user_mode_loop+0x9e/0x130 [ 64.586450][ T4311] exit_to_user_mode_prepare+0xb1/0x140 [ 64.592521][ T4311] syscall_exit_to_user_mode+0x16/0x40 [ 64.598505][ T4311] do_syscall_64+0x58/0xa0 [ 64.603444][ T4311] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 64.609864][ T4311] [ 64.609864][ T4311] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 64.617509][ T4311] __mutex_lock_common+0x1eb/0x2390 [ 64.623229][ T4311] mutex_lock_nested+0x17/0x20 [ 64.628514][ T4311] bg_scan_update+0x44/0x3b0 [ 64.633625][ T4311] process_one_work+0x863/0x1000 [ 64.639088][ T4311] worker_thread+0xaa8/0x12a0 [ 64.644287][ T4311] kthread+0x436/0x520 [ 64.648876][ T4311] ret_from_fork+0x1f/0x30 [ 64.653817][ T4311] [ 64.653817][ T4311] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 64.663629][ T4311] __lock_acquire+0x2c33/0x7c60 [ 64.669006][ T4311] lock_acquire+0x197/0x3f0 [ 64.674035][ T4311] __flush_work+0xdd/0x1b0 [ 64.679062][ T4311] __cancel_work_timer+0x3ac/0x520 [ 64.684695][ T4311] hci_request_cancel_all+0xcc/0x300 [ 64.690504][ T4311] hci_dev_do_close+0x4e/0x1030 [ 64.695871][ T4311] hci_rfkill_set_block+0x10a/0x190 [ 64.701605][ T4311] rfkill_set_block+0x1c6/0x420 [ 64.706980][ T4311] rfkill_fop_write+0x458/0x560 [ 64.712354][ T4311] vfs_write+0x300/0xd00 [ 64.717115][ T4311] ksys_write+0x14d/0x250 [ 64.721963][ T4311] do_syscall_64+0x4c/0xa0 [ 64.726898][ T4311] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 64.733318][ T4311] [ 64.733318][ T4311] other info that might help us debug this: [ 64.733318][ T4311] [ 64.743536][ T4311] Chain exists of: [ 64.743536][ T4311] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 64.743536][ T4311] [ 64.759261][ T4311] Possible unsafe locking scenario: [ 64.759261][ T4311] [ 64.766713][ T4311] CPU0 CPU1 [ 64.772072][ T4311] ---- ---- [ 64.777431][ T4311] lock(rfkill_global_mutex); [ 64.782279][ T4311] lock(&data->open_mutex); [ 64.789386][ T4311] lock(rfkill_global_mutex); [ 64.796753][ T4311] lock((work_completion)(&hdev->bg_scan_update)); [ 64.803339][ T4311] [ 64.803339][ T4311] *** DEADLOCK *** [ 64.803339][ T4311] [ 64.811484][ T4311] 1 lock held by syz.0.17/4311: [ 64.816325][ T4311] #0: ffffffff8d4be228 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 64.826424][ T4311] [ 64.826424][ T4311] stack backtrace: [ 64.832322][ T4311] CPU: 1 PID: 4311 Comm: syz.0.17 Not tainted 5.15.189-syzkaller #0 [ 64.840299][ T4311] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 64.850452][ T4311] Call Trace: [ 64.853735][ T4311] [ 64.856664][ T4311] dump_stack_lvl+0x168/0x230 [ 64.861349][ T4311] ? load_image+0x3b0/0x3b0 [ 64.865864][ T4311] ? show_regs_print_info+0x20/0x20 [ 64.871075][ T4311] ? print_circular_bug+0x12b/0x1a0 [ 64.876279][ T4311] check_noncircular+0x274/0x310 [ 64.881225][ T4311] ? add_chain_block+0x940/0x940 [ 64.886290][ T4311] ? lockdep_lock+0xdc/0x1e0 [ 64.890891][ T4311] ? __lock_acquire+0x12d9/0x7c60 [ 64.896112][ T4311] ? lockdep_lock+0x1e0/0x1e0 [ 64.900881][ T4311] ? mark_lock+0x94/0x320 [ 64.905224][ T4311] __lock_acquire+0x2c33/0x7c60 [ 64.910344][ T4311] ? verify_lock_unused+0x140/0x140 [ 64.915550][ T4311] ? verify_lock_unused+0x140/0x140 [ 64.920767][ T4311] lock_acquire+0x197/0x3f0 [ 64.925279][ T4311] ? __flush_work+0xc1/0x1b0 [ 64.929888][ T4311] ? __lock_acquire+0x7c60/0x7c60 [ 64.934932][ T4311] ? read_lock_is_recursive+0x10/0x10 [ 64.940310][ T4311] ? start_flush_work+0x776/0x820 [ 64.945424][ T4311] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 64.951011][ T1325] Bluetooth: hci0: command 0x040f tx timeout [ 64.951327][ T4311] ? _raw_spin_unlock+0x40/0x40 [ 64.962376][ T4311] __flush_work+0xdd/0x1b0 [ 64.966836][ T4311] ? __flush_work+0xc1/0x1b0 [ 64.971432][ T4311] ? flush_work+0x20/0x20 [ 64.976025][ T4311] ? try_to_grab_pending+0xf3/0x7e0 [ 64.981222][ T4311] ? lockdep_hardirqs_off+0x70/0x100 [ 64.986624][ T4311] ? mark_lock+0x94/0x320 [ 64.990971][ T4311] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 64.996961][ T4311] ? lock_chain_count+0x20/0x20 [ 65.001818][ T4311] ? mark_lock+0x94/0x320 [ 65.006153][ T4311] ? __cancel_work_timer+0x331/0x520 [ 65.011530][ T4311] __cancel_work_timer+0x3ac/0x520 [ 65.016737][ T4311] ? cancel_work_sync+0x20/0x20 [ 65.021684][ T4311] ? __cancel_work+0x1f4/0x2d0 [ 65.026455][ T4311] ? lockdep_hardirqs_on+0x94/0x140 [ 65.031923][ T4311] ? __cancel_work+0x26f/0x2d0 [ 65.036694][ T4311] ? cancel_work+0x20/0x20 [ 65.041126][ T4311] ? lock_chain_count+0x20/0x20 [ 65.045984][ T4311] hci_request_cancel_all+0xcc/0x300 [ 65.051273][ T4311] hci_dev_do_close+0x4e/0x1030 [ 65.056126][ T4311] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 65.062024][ T4311] ? _raw_spin_unlock+0x40/0x40 [ 65.066884][ T4311] hci_rfkill_set_block+0x10a/0x190 [ 65.072089][ T4311] ? rcu_lock_release+0x20/0x20 [ 65.076948][ T4311] rfkill_set_block+0x1c6/0x420 [ 65.081811][ T4311] rfkill_fop_write+0x458/0x560 [ 65.086670][ T4311] ? verify_lock_unused+0x140/0x140 [ 65.091878][ T4311] ? rfkill_fop_read+0x4b0/0x4b0 [ 65.096824][ T4311] ? common_file_perm+0x150/0x1c0 [ 65.101856][ T4311] ? fsnotify_perm+0x5d/0x560 [ 65.106545][ T4311] ? security_file_permission+0x75/0xa0 [ 65.112091][ T4311] ? rfkill_fop_read+0x4b0/0x4b0 [ 65.117033][ T4311] vfs_write+0x300/0xd00 [ 65.121278][ T4311] ? file_end_write+0x250/0x250 [ 65.126132][ T4311] ? __context_tracking_exit+0x4c/0x80 [ 65.131598][ T4311] ? __lock_acquire+0x7c60/0x7c60 [ 65.136636][ T4311] ? __fdget_pos+0x1e2/0x370 [ 65.141234][ T4311] ksys_write+0x14d/0x250 [ 65.145572][ T4311] ? __ia32_sys_read+0x80/0x80 [ 65.150337][ T4311] ? lockdep_hardirqs_on+0x94/0x140 [ 65.155651][ T4311] do_syscall_64+0x4c/0xa0 [ 65.160079][ T4311] ? clear_bhb_loop+0x30/0x80 [ 65.164756][ T4311] ? clear_bhb_loop+0x30/0x80 [ 65.169440][ T4311] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 65.175348][ T4311] RIP: 0033:0x7fb45ab13be9 [ 65.179775][ T4311] 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 [ 65.199727][ T4311] RSP: 002b:00007ffc6523c778 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 65.208148][ T4311] RAX: ffffffffffffffda RBX: 00007fb45ad3afa0 RCX: 00007fb45ab13be9 [ 65.216127][ T4311] RDX: 0000000000000008 RSI: 0000200000000100 RDI: 0000000000000003 [ 65.224096][ T4311] RBP: 00007fb45ab96e19 R08: 0000000000000000 R09: 0000000000000000 [ 65.232159][ T4311] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 65.240133][ T4311] R13: 00007fb45ad3afa0 R14: 00007fb45ad3afa0 R15: 0000000000000003 [ 65.248354][ T4311]