Warning: Permanently added '10.128.0.56' (ED25519) to the list of known hosts. 2025/09/13 10:27:38 parsed 1 programs [ 60.801388][ T4191] cgroup: Unknown subsys name 'net' [ 60.928829][ T4191] cgroup: Unknown subsys name 'rlimit' [ 62.384320][ T4191] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 65.241054][ T4235] chnl_net:caif_netlink_parms(): no params data found [ 65.300495][ T4235] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.309248][ T4235] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.317945][ T4235] device bridge_slave_0 entered promiscuous mode [ 65.328314][ T4235] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.335730][ T4235] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.345133][ T4235] device bridge_slave_1 entered promiscuous mode [ 65.369556][ T4235] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 65.381163][ T4235] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 65.412739][ T4235] team0: Port device team_slave_0 added [ 65.420482][ T4235] team0: Port device team_slave_1 added [ 65.440298][ T4235] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 65.447438][ T4235] 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. [ 65.473688][ T4235] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 65.486182][ T4235] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 65.493251][ T4235] 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. [ 65.519152][ T4235] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 65.556663][ T4235] device hsr_slave_0 entered promiscuous mode [ 65.563648][ T4235] device hsr_slave_1 entered promiscuous mode [ 65.666914][ T4235] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 65.677287][ T4235] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 65.686252][ T4235] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 65.696109][ T4235] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 65.750304][ T4235] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.764044][ T4235] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.774814][ T4235] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.781927][ T4235] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.858997][ T4235] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.870617][ T1173] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 65.880752][ T1173] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.888706][ T1173] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.896755][ T1173] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 65.909429][ T4235] 8021q: adding VLAN 0 to HW filter on device team0 [ 65.919700][ T1173] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 65.928159][ T1173] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.935210][ T1173] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.954289][ T1173] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 65.962928][ T1173] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.969960][ T1173] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.978938][ T1173] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 65.988646][ T1173] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 65.998976][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 66.010189][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 66.021328][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 66.032335][ T4235] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 66.127282][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 66.135045][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 66.147154][ T4235] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 66.178100][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 66.195900][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 66.205416][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 66.214875][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 66.222589][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 66.232209][ T4235] device veth0_vlan entered promiscuous mode [ 66.256510][ T4235] device veth1_vlan entered promiscuous mode [ 66.274214][ T3088] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 66.282136][ T3088] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 66.290117][ T3088] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 66.299008][ T3088] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 66.310055][ T4235] device veth0_macvtap entered promiscuous mode [ 66.333301][ T4235] device veth1_macvtap entered promiscuous mode [ 66.347266][ T4235] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 66.356926][ T3088] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 66.365605][ T3088] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 66.373666][ T3088] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 66.382047][ T3088] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 66.393595][ T4235] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 66.404413][ T4235] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.413400][ T4235] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.422113][ T4235] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.430991][ T4235] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.442438][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 66.451094][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 66.868241][ T3088] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 66.882274][ T3088] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 66.895402][ T1173] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 66.898545][ T3088] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 66.911032][ T1173] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 66.920245][ T1173] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2025/09/13 10:27:48 executed programs: 0 [ 68.150259][ T4293] chnl_net:caif_netlink_parms(): no params data found [ 68.200259][ T4293] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.207619][ T4293] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.216221][ T4293] device bridge_slave_0 entered promiscuous mode [ 68.225107][ T4293] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.232216][ T4293] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.241597][ T4293] device bridge_slave_1 entered promiscuous mode [ 68.265456][ T4293] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 68.277196][ T4293] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 68.303788][ T4293] team0: Port device team_slave_0 added [ 68.315286][ T4293] team0: Port device team_slave_1 added [ 68.341110][ T4293] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 68.348962][ T4293] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 68.377709][ T4293] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 68.390621][ T4293] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 68.400011][ T4293] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 68.426728][ T4293] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 68.468272][ T4293] device hsr_slave_0 entered promiscuous mode [ 68.475273][ T4293] device hsr_slave_1 entered promiscuous mode [ 68.482262][ T4293] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 68.493084][ T4293] Cannot create hsr debugfs directory [ 68.580980][ T4293] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 70.033353][ T4303] Bluetooth: hci0: command 0x0409 tx timeout [ 71.145152][ T1421] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.151747][ T1421] ieee802154 phy1 wpan1: encryption failed: -22 [ 71.268491][ T4293] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 71.327146][ T4293] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 71.399819][ T4293] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 71.519538][ T4293] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 71.528228][ T4293] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 71.537704][ T4293] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 71.548061][ T4293] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 71.609404][ T4293] 8021q: adding VLAN 0 to HW filter on device bond0 [ 71.621674][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 71.631637][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 71.645349][ T4293] 8021q: adding VLAN 0 to HW filter on device team0 [ 71.660311][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 71.669658][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 71.678166][ T144] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.685240][ T144] bridge0: port 1(bridge_slave_0) entered forwarding state [ 71.696935][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 71.705985][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 71.714752][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 71.723771][ T144] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.730815][ T144] bridge0: port 2(bridge_slave_1) entered forwarding state [ 71.753730][ T3088] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 71.765807][ T3088] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 71.777594][ T3088] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 71.787582][ T3088] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 71.796845][ T3088] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 71.807590][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 71.817330][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 71.844194][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 71.852867][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 71.865508][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 71.873878][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 71.900774][ T4293] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 71.997077][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 72.004737][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 72.031330][ T4293] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 72.048526][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 72.057526][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 72.090457][ T1173] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 72.099028][ T1173] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 72.107249][ T4303] Bluetooth: hci0: command 0x041b tx timeout [ 72.109750][ T1173] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 72.121505][ T1173] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 72.131118][ T4293] device veth0_vlan entered promiscuous mode [ 72.148323][ T4293] device veth1_vlan entered promiscuous mode [ 72.176156][ T1173] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 72.184448][ T1173] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 72.192438][ T1173] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 72.203405][ T1173] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 72.220191][ T4293] device veth0_macvtap entered promiscuous mode [ 72.235509][ T9] device hsr_slave_0 left promiscuous mode [ 72.241901][ T9] device hsr_slave_1 left promiscuous mode [ 72.248552][ T9] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 72.256292][ T9] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 72.265188][ T9] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 72.273053][ T9] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 72.280694][ T9] device bridge_slave_1 left promiscuous mode [ 72.287554][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 72.300150][ T9] device bridge_slave_0 left promiscuous mode [ 72.306420][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 72.323157][ T9] device veth1_macvtap left promiscuous mode [ 72.329324][ T9] device veth0_macvtap left promiscuous mode [ 72.335494][ T9] device veth1_vlan left promiscuous mode [ 72.341336][ T9] device veth0_vlan left promiscuous mode [ 72.487543][ T9] team0 (unregistering): Port device team_slave_1 removed [ 72.499665][ T9] team0 (unregistering): Port device team_slave_0 removed [ 72.512101][ T9] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 72.525972][ T9] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 72.578200][ T9] bond0 (unregistering): Released all slaves [ 72.646924][ T4293] device veth1_macvtap entered promiscuous mode [ 72.656680][ T3088] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 72.665009][ T3088] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 72.684080][ T4293] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 72.692292][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 72.701643][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 72.713898][ T4293] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 72.722852][ T1446] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 72.731545][ T1446] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 72.742212][ T4293] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.751798][ T4293] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.760727][ T4293] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.769685][ T4293] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.830735][ T1446] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 72.841610][ T1446] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 72.856098][ T3088] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 72.877884][ T3088] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 72.886247][ T3088] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 72.895676][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 72.993567][ T4316] [ 72.995940][ T4316] ====================================================== [ 73.002976][ T4316] WARNING: possible circular locking dependency detected [ 73.010009][ T4316] syzkaller #0 Not tainted [ 73.014424][ T4316] ------------------------------------------------------ [ 73.021442][ T4316] syz.0.17/4316 is trying to acquire lock: [ 73.027252][ T4316] ffff888028630c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xc1/0x1b0 [ 73.038320][ T4316] [ 73.038320][ T4316] but task is already holding lock: [ 73.045682][ T4316] ffffffff8d4c0468 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 73.055345][ T4316] [ 73.055345][ T4316] which lock already depends on the new lock. [ 73.055345][ T4316] [ 73.065741][ T4316] [ 73.065741][ T4316] the existing dependency chain (in reverse order) is: [ 73.074759][ T4316] [ 73.074759][ T4316] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 73.082776][ T4316] __mutex_lock_common+0x1eb/0x2390 [ 73.088511][ T4316] mutex_lock_nested+0x17/0x20 [ 73.093913][ T4316] rfkill_register+0x33/0x8a0 [ 73.099139][ T4316] hci_register_dev+0x452/0x970 [ 73.104524][ T4316] vhci_create_device+0x32c/0x5c0 [ 73.110089][ T4316] vhci_write+0x391/0x450 [ 73.114952][ T4316] vfs_write+0x712/0xd00 [ 73.119778][ T4316] ksys_write+0x14d/0x250 [ 73.124649][ T4316] do_syscall_64+0x4c/0xa0 [ 73.129595][ T4316] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 73.136024][ T4316] [ 73.136024][ T4316] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 73.143870][ T4316] __mutex_lock_common+0x1eb/0x2390 [ 73.149614][ T4316] mutex_lock_nested+0x17/0x20 [ 73.154910][ T4316] vhci_send_frame+0x88/0x100 [ 73.160124][ T4316] hci_send_frame+0x1a9/0x2e0 [ 73.165335][ T4316] hci_tx_work+0x9f9/0x1710 [ 73.170378][ T4316] process_one_work+0x863/0x1000 [ 73.175870][ T4316] worker_thread+0xaa8/0x12a0 [ 73.181072][ T4316] kthread+0x436/0x520 [ 73.185668][ T4316] ret_from_fork+0x1f/0x30 [ 73.190612][ T4316] [ 73.190612][ T4316] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 73.199834][ T4316] __flush_work+0xdd/0x1b0 [ 73.204783][ T4316] hci_dev_do_close+0x1e7/0x1030 [ 73.210247][ T4316] hci_unregister_dev+0x2d7/0x580 [ 73.215809][ T4316] vhci_release+0x73/0xc0 [ 73.220693][ T4316] __fput+0x234/0x930 [ 73.225213][ T4316] task_work_run+0x125/0x1a0 [ 73.230341][ T4316] do_exit+0x61e/0x20a0 [ 73.235039][ T4316] do_group_exit+0x12e/0x300 [ 73.240157][ T4316] get_signal+0x6ca/0x12c0 [ 73.245122][ T4316] arch_do_signal_or_restart+0xc1/0x1300 [ 73.251290][ T4316] exit_to_user_mode_loop+0x9e/0x130 [ 73.257117][ T4316] exit_to_user_mode_prepare+0xee/0x180 [ 73.263207][ T4316] syscall_exit_to_user_mode+0x16/0x40 [ 73.269213][ T4316] do_syscall_64+0x58/0xa0 [ 73.274158][ T4316] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 73.280580][ T4316] [ 73.280580][ T4316] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 73.288237][ T4316] __mutex_lock_common+0x1eb/0x2390 [ 73.293965][ T4316] mutex_lock_nested+0x17/0x20 [ 73.299258][ T4316] bg_scan_update+0x44/0x3b0 [ 73.304383][ T4316] process_one_work+0x863/0x1000 [ 73.309847][ T4316] worker_thread+0xaa8/0x12a0 [ 73.315053][ T4316] kthread+0x436/0x520 [ 73.319646][ T4316] ret_from_fork+0x1f/0x30 [ 73.324613][ T4316] [ 73.324613][ T4316] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 73.334527][ T4316] __lock_acquire+0x2c33/0x7c60 [ 73.339910][ T4316] lock_acquire+0x197/0x3f0 [ 73.344952][ T4316] __flush_work+0xdd/0x1b0 [ 73.349909][ T4316] __cancel_work_timer+0x3ac/0x520 [ 73.355558][ T4316] hci_request_cancel_all+0xcc/0x300 [ 73.361373][ T4316] hci_dev_do_close+0x4e/0x1030 [ 73.366751][ T4316] hci_rfkill_set_block+0x10a/0x190 [ 73.372480][ T4316] rfkill_set_block+0x1c6/0x420 [ 73.377863][ T4316] rfkill_fop_write+0x458/0x560 [ 73.383245][ T4316] vfs_write+0x300/0xd00 [ 73.388016][ T4316] ksys_write+0x14d/0x250 [ 73.392871][ T4316] do_syscall_64+0x4c/0xa0 [ 73.397820][ T4316] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 73.404236][ T4316] [ 73.404236][ T4316] other info that might help us debug this: [ 73.404236][ T4316] [ 73.414464][ T4316] Chain exists of: [ 73.414464][ T4316] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 73.414464][ T4316] [ 73.430194][ T4316] Possible unsafe locking scenario: [ 73.430194][ T4316] [ 73.437649][ T4316] CPU0 CPU1 [ 73.443044][ T4316] ---- ---- [ 73.448413][ T4316] lock(rfkill_global_mutex); [ 73.453197][ T4316] lock(&data->open_mutex); [ 73.460315][ T4316] lock(rfkill_global_mutex); [ 73.467624][ T4316] lock((work_completion)(&hdev->bg_scan_update)); [ 73.474219][ T4316] [ 73.474219][ T4316] *** DEADLOCK *** [ 73.474219][ T4316] [ 73.482376][ T4316] 1 lock held by syz.0.17/4316: [ 73.487226][ T4316] #0: ffffffff8d4c0468 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 73.497335][ T4316] [ 73.497335][ T4316] stack backtrace: [ 73.503230][ T4316] CPU: 1 PID: 4316 Comm: syz.0.17 Not tainted syzkaller #0 [ 73.510448][ T4316] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 73.520541][ T4316] Call Trace: [ 73.523839][ T4316] [ 73.526773][ T4316] dump_stack_lvl+0x168/0x230 [ 73.531464][ T4316] ? load_image+0x3b0/0x3b0 [ 73.535977][ T4316] ? show_regs_print_info+0x20/0x20 [ 73.541191][ T4316] ? print_circular_bug+0x12b/0x1a0 [ 73.546497][ T4316] check_noncircular+0x274/0x310 [ 73.551457][ T4316] ? add_chain_block+0x940/0x940 [ 73.556404][ T4316] ? lockdep_lock+0xdc/0x1e0 [ 73.561015][ T4316] ? __lock_acquire+0x12d9/0x7c60 [ 73.566053][ T4316] ? lockdep_lock+0x1e0/0x1e0 [ 73.570745][ T4316] ? mark_lock+0x94/0x320 [ 73.575111][ T4316] ? _find_first_zero_bit+0xce/0xf0 [ 73.580331][ T4316] __lock_acquire+0x2c33/0x7c60 [ 73.585204][ T4316] ? verify_lock_unused+0x140/0x140 [ 73.590431][ T4316] ? verify_lock_unused+0x140/0x140 [ 73.595668][ T4316] lock_acquire+0x197/0x3f0 [ 73.600197][ T4316] ? __flush_work+0xc1/0x1b0 [ 73.604802][ T4316] ? __lock_acquire+0x7c60/0x7c60 [ 73.609932][ T4316] ? read_lock_is_recursive+0x10/0x10 [ 73.615317][ T4316] ? start_flush_work+0x776/0x820 [ 73.620352][ T4316] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 73.626257][ T4316] ? _raw_spin_unlock+0x40/0x40 [ 73.631119][ T4316] __flush_work+0xdd/0x1b0 [ 73.635543][ T4316] ? __flush_work+0xc1/0x1b0 [ 73.640162][ T4316] ? flush_work+0x20/0x20 [ 73.644501][ T4316] ? try_to_grab_pending+0xf3/0x7e0 [ 73.649725][ T4316] ? lockdep_hardirqs_off+0x70/0x100 [ 73.655026][ T4316] ? mark_lock+0x94/0x320 [ 73.659362][ T4316] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 73.665357][ T4316] ? lock_chain_count+0x20/0x20 [ 73.670219][ T4316] ? mark_lock+0x94/0x320 [ 73.674569][ T4316] ? __cancel_work_timer+0x331/0x520 [ 73.679872][ T4316] __cancel_work_timer+0x3ac/0x520 [ 73.685004][ T4316] ? cancel_work_sync+0x20/0x20 [ 73.689883][ T4316] ? __cancel_work+0x1f4/0x2d0 [ 73.694662][ T4316] ? lockdep_hardirqs_on+0x94/0x140 [ 73.699878][ T4316] ? __cancel_work+0x26f/0x2d0 [ 73.704660][ T4316] ? cancel_work+0x20/0x20 [ 73.709090][ T4316] ? lock_chain_count+0x20/0x20 [ 73.713957][ T4316] hci_request_cancel_all+0xcc/0x300 [ 73.719260][ T4316] hci_dev_do_close+0x4e/0x1030 [ 73.724127][ T4316] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 73.730054][ T4316] ? _raw_spin_unlock+0x40/0x40 [ 73.734918][ T4316] hci_rfkill_set_block+0x10a/0x190 [ 73.740126][ T4316] ? rcu_lock_release+0x20/0x20 [ 73.745001][ T4316] rfkill_set_block+0x1c6/0x420 [ 73.749871][ T4316] rfkill_fop_write+0x458/0x560 [ 73.754748][ T4316] ? verify_lock_unused+0x140/0x140 [ 73.759956][ T4316] ? rfkill_fop_read+0x4b0/0x4b0 [ 73.764999][ T4316] ? common_file_perm+0xc0/0x1c0 [ 73.769956][ T4316] ? fsnotify_perm+0x5d/0x560 [ 73.774651][ T4316] ? security_file_permission+0x75/0xa0 [ 73.780205][ T4316] ? rfkill_fop_read+0x4b0/0x4b0 [ 73.785164][ T4316] vfs_write+0x300/0xd00 [ 73.789420][ T4316] ? file_end_write+0x250/0x250 [ 73.794291][ T4316] ? __context_tracking_exit+0x4c/0x80 [ 73.799783][ T4316] ? __lock_acquire+0x7c60/0x7c60 [ 73.804842][ T4316] ? __fdget_pos+0x1e2/0x370 [ 73.809448][ T4316] ksys_write+0x14d/0x250 [ 73.813804][ T4316] ? __ia32_sys_read+0x80/0x80 [ 73.818599][ T4316] ? lockdep_hardirqs_on+0x94/0x140 [ 73.823814][ T4316] do_syscall_64+0x4c/0xa0 [ 73.828248][ T4316] ? clear_bhb_loop+0x30/0x80 [ 73.832935][ T4316] ? clear_bhb_loop+0x30/0x80 [ 73.837625][ T4316] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 73.843542][ T4316] RIP: 0033:0x7f87d97c5ba9 [ 73.847976][ T4316] 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 [ 73.867685][ T4316] RSP: 002b:00007ffd4eb54248 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 73.876115][ T4316] RAX: ffffffffffffffda RBX: 00007f87d9a0cfa0 RCX: 00007f87d97c5ba9 [ 73.884097][ T4316] RDX: 0000000000000008 RSI: 0000200000000080 RDI: 0000000000000003 [ 73.892082][ T4316] RBP: 00007f87d9848e19 R08: 0000000000000000 R09: 0000000000000000 [ 73.900068][ T4316] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 73.908053][ T4316] R13: 00007f87d9a0cfa0 R14: 00007f87d9a0cfa0 R15: 0000000000000003 [ 73.916036][ T4316]