Warning: Permanently added '10.128.0.214' (ED25519) to the list of known hosts. 2026/04/11 21:12:35 parsed 1 programs [ 67.937116][ T4188] cgroup: Unknown subsys name 'net' [ 68.077940][ T4188] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 69.402904][ T4188] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 71.167577][ T4223] chnl_net:caif_netlink_parms(): no params data found [ 71.212357][ T4223] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.219625][ T4223] bridge0: port 1(bridge_slave_0) entered disabled state [ 71.227727][ T4223] device bridge_slave_0 entered promiscuous mode [ 71.236559][ T4223] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.243724][ T4223] bridge0: port 2(bridge_slave_1) entered disabled state [ 71.251578][ T4223] device bridge_slave_1 entered promiscuous mode [ 71.258841][ T1421] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.265511][ T1421] ieee802154 phy1 wpan1: encryption failed: -22 [ 71.290060][ T4223] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 71.301163][ T4223] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 71.322238][ T4223] team0: Port device team_slave_0 added [ 71.329361][ T4223] team0: Port device team_slave_1 added [ 71.349953][ T4223] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 71.357346][ T4223] 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. [ 71.383401][ T4223] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 71.396240][ T4223] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 71.404025][ T4223] 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. [ 71.430233][ T4223] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 71.468016][ T4223] device hsr_slave_0 entered promiscuous mode [ 71.479299][ T4223] device hsr_slave_1 entered promiscuous mode [ 71.610198][ T4223] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 71.621588][ T4223] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 71.631903][ T4223] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 71.649552][ T4223] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 71.676833][ T4223] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.684162][ T4223] bridge0: port 2(bridge_slave_1) entered forwarding state [ 71.692055][ T4223] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.699166][ T4223] bridge0: port 1(bridge_slave_0) entered forwarding state [ 71.756174][ T4223] 8021q: adding VLAN 0 to HW filter on device bond0 [ 71.770897][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 71.780849][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 71.789595][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 71.804989][ T4223] 8021q: adding VLAN 0 to HW filter on device team0 [ 71.816875][ T375] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 71.826558][ T375] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.833763][ T375] bridge0: port 1(bridge_slave_0) entered forwarding state [ 71.853947][ T375] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 71.863044][ T375] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.870111][ T375] bridge0: port 2(bridge_slave_1) entered forwarding state [ 71.895631][ T375] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 71.904475][ T375] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 71.914111][ T375] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 71.926999][ T4223] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 71.939008][ T4223] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 71.948169][ T375] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 71.959110][ T375] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 72.071246][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 72.080774][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 72.096128][ T4223] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 72.117832][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 72.129658][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 72.150567][ T4223] device veth0_vlan entered promiscuous mode [ 72.158550][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 72.168834][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 72.183204][ T4223] device veth1_vlan entered promiscuous mode [ 72.191293][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 72.201483][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 72.209265][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 72.240959][ T4223] device veth0_macvtap entered promiscuous mode [ 72.248969][ T375] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 72.258789][ T375] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 72.269043][ T375] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 72.284535][ T4223] device veth1_macvtap entered promiscuous mode [ 72.293528][ T375] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 72.302722][ T375] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 72.320844][ T4223] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 72.329854][ T1272] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 72.338734][ T1272] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 72.351054][ T4223] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 72.365103][ T4223] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.375424][ T4223] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.384509][ T4223] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.394605][ T4223] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.404910][ T1272] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 72.413891][ T1272] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 73.026522][ T3098] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 73.686000][ T375] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 73.696976][ T375] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 73.708246][ T1272] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 73.727932][ T1272] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 73.735905][ T1272] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 73.744653][ T375] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2026/04/11 21:12:43 executed programs: 0 [ 74.199568][ T4278] chnl_net:caif_netlink_parms(): no params data found [ 74.241978][ T4278] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.249083][ T4278] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.257077][ T4278] device bridge_slave_0 entered promiscuous mode [ 74.265684][ T4278] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.272856][ T4278] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.280563][ T4278] device bridge_slave_1 entered promiscuous mode [ 74.303073][ T4278] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 74.314472][ T4278] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 74.337393][ T4278] team0: Port device team_slave_0 added [ 74.344830][ T4278] team0: Port device team_slave_1 added [ 74.362033][ T4278] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 74.368995][ T4278] 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. [ 74.395599][ T4278] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 74.407676][ T4278] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 74.414843][ T4278] 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. [ 74.441018][ T4278] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 74.470037][ T4278] device hsr_slave_0 entered promiscuous mode [ 74.477409][ T4278] device hsr_slave_1 entered promiscuous mode [ 74.484591][ T4278] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 74.492497][ T4278] Cannot create hsr debugfs directory [ 75.317963][ T3098] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 76.202360][ T4200] Bluetooth: hci0: command 0x0409 tx timeout [ 77.986761][ T3098] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 78.029647][ T3098] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 78.292423][ T1110] Bluetooth: hci0: command 0x041b tx timeout [ 78.836094][ T4278] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 78.846120][ T4278] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 78.856456][ T4278] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 78.866928][ T4278] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 78.920532][ T4278] 8021q: adding VLAN 0 to HW filter on device bond0 [ 78.934105][ T1272] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 78.942555][ T1272] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 78.965088][ T4278] 8021q: adding VLAN 0 to HW filter on device team0 [ 78.975104][ T1272] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 78.983975][ T1272] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 78.992566][ T1272] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.999644][ T1272] bridge0: port 1(bridge_slave_0) entered forwarding state [ 79.007889][ T1272] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 79.037055][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 79.046036][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 79.056968][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 79.064059][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 79.076225][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 79.105996][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 79.117529][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 79.127242][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 79.137633][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 79.148698][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 79.158791][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 79.171059][ T1272] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 79.179720][ T1272] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 79.204666][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 79.214018][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 79.225873][ T4278] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 79.291029][ T3098] device hsr_slave_0 left promiscuous mode [ 79.297477][ T3098] device hsr_slave_1 left promiscuous mode [ 79.306571][ T3098] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 79.314556][ T3098] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 79.324059][ T3098] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 79.332012][ T3098] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 79.339548][ T3098] device bridge_slave_1 left promiscuous mode [ 79.347144][ T3098] bridge0: port 2(bridge_slave_1) entered disabled state [ 79.359540][ T3098] device bridge_slave_0 left promiscuous mode [ 79.367133][ T3098] bridge0: port 1(bridge_slave_0) entered disabled state [ 79.384222][ T3098] device veth1_macvtap left promiscuous mode [ 79.390416][ T3098] device veth0_macvtap left promiscuous mode [ 79.396968][ T3098] device veth1_vlan left promiscuous mode [ 79.403259][ T3098] device veth0_vlan left promiscuous mode [ 79.555481][ T3098] team0 (unregistering): Port device team_slave_1 removed [ 79.568713][ T3098] team0 (unregistering): Port device team_slave_0 removed [ 79.585539][ T3098] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 79.601238][ T3098] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 79.661633][ T3098] bond0 (unregistering): Released all slaves [ 79.774787][ T1272] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 79.782556][ T1272] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 79.814032][ T4278] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 79.830705][ T1272] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 79.839657][ T1272] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 79.866607][ T375] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 79.880151][ T375] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 79.890057][ T4278] device veth0_vlan entered promiscuous mode [ 79.897119][ T375] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 79.906246][ T375] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 79.918243][ T4278] device veth1_vlan entered promiscuous mode [ 79.944964][ T375] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 79.953984][ T375] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 79.964446][ T375] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 79.973214][ T375] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 79.983762][ T4278] device veth0_macvtap entered promiscuous mode [ 79.993913][ T4278] device veth1_macvtap entered promiscuous mode [ 80.009883][ T4278] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 80.017639][ T375] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 80.026670][ T375] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 80.035245][ T375] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 80.047645][ T4278] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 80.055982][ T1272] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 80.064964][ T1272] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 80.076696][ T4278] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 80.085655][ T4278] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 80.094560][ T4278] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 80.103860][ T4278] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 80.175568][ T144] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 80.191742][ T144] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 80.201830][ T1272] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 80.222985][ T144] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 80.230840][ T144] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 80.239012][ T1272] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 80.376268][ T4254] Bluetooth: hci0: command 0x040f tx timeout [ 80.413813][ T4330] [ 80.416230][ T4330] ====================================================== [ 80.423250][ T4330] WARNING: possible circular locking dependency detected [ 80.430285][ T4330] syzkaller #0 Not tainted [ 80.434698][ T4330] ------------------------------------------------------ [ 80.441714][ T4330] syz.0.17/4330 is trying to acquire lock: [ 80.447526][ T4330] ffff8880783f0c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 80.458641][ T4330] [ 80.458641][ T4330] but task is already holding lock: [ 80.466013][ T4330] ffffffff8d6c51a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 80.475689][ T4330] [ 80.475689][ T4330] which lock already depends on the new lock. [ 80.475689][ T4330] [ 80.486248][ T4330] [ 80.486248][ T4330] the existing dependency chain (in reverse order) is: [ 80.495287][ T4330] [ 80.495287][ T4330] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 80.503303][ T4330] __mutex_lock_common+0x1e3/0x2400 [ 80.509054][ T4330] mutex_lock_nested+0x17/0x20 [ 80.514369][ T4330] rfkill_register+0x33/0x8a0 [ 80.519588][ T4330] hci_register_dev+0x452/0x970 [ 80.524983][ T4330] vhci_create_device+0x32c/0x5c0 [ 80.530562][ T4330] vhci_write+0x391/0x450 [ 80.535431][ T4330] vfs_write+0x745/0xd60 [ 80.540221][ T4330] ksys_write+0x152/0x260 [ 80.545087][ T4330] do_syscall_64+0x4c/0xa0 [ 80.550045][ T4330] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 80.556478][ T4330] [ 80.556478][ T4330] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 80.564319][ T4330] __mutex_lock_common+0x1e3/0x2400 [ 80.570049][ T4330] mutex_lock_nested+0x17/0x20 [ 80.575344][ T4330] vhci_send_frame+0x88/0x100 [ 80.580584][ T4330] hci_send_frame+0x1a9/0x2e0 [ 80.585795][ T4330] hci_tx_work+0x9f9/0x1710 [ 80.590830][ T4330] process_one_work+0x85f/0x1010 [ 80.596301][ T4330] worker_thread+0xaa6/0x1290 [ 80.601529][ T4330] kthread+0x436/0x520 [ 80.606133][ T4330] ret_from_fork+0x1f/0x30 [ 80.611175][ T4330] [ 80.611175][ T4330] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 80.620425][ T4330] __flush_work+0x116/0x210 [ 80.625476][ T4330] hci_dev_do_close+0x1e7/0x1030 [ 80.630958][ T4330] hci_unregister_dev+0x2d7/0x580 [ 80.636534][ T4330] vhci_release+0x73/0xc0 [ 80.641399][ T4330] __fput+0x234/0x930 [ 80.645919][ T4330] task_work_run+0x125/0x1a0 [ 80.651058][ T4330] do_exit+0x626/0x20c0 [ 80.655750][ T4330] do_group_exit+0x12e/0x300 [ 80.660877][ T4330] get_signal+0x6ca/0x12c0 [ 80.665861][ T4330] arch_do_signal_or_restart+0xe7/0x12c0 [ 80.672030][ T4330] exit_to_user_mode_loop+0x9e/0x130 [ 80.678048][ T4330] exit_to_user_mode_prepare+0xee/0x180 [ 80.684138][ T4330] syscall_exit_to_user_mode+0x16/0x40 [ 80.690165][ T4330] do_syscall_64+0x58/0xa0 [ 80.695113][ T4330] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 80.701540][ T4330] [ 80.701540][ T4330] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 80.709197][ T4330] __mutex_lock_common+0x1e3/0x2400 [ 80.714930][ T4330] mutex_lock_nested+0x17/0x20 [ 80.720233][ T4330] bg_scan_update+0x44/0x3b0 [ 80.725363][ T4330] process_one_work+0x85f/0x1010 [ 80.731036][ T4330] worker_thread+0xaa6/0x1290 [ 80.736244][ T4330] kthread+0x436/0x520 [ 80.740848][ T4330] ret_from_fork+0x1f/0x30 [ 80.745791][ T4330] [ 80.745791][ T4330] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 80.755617][ T4330] __lock_acquire+0x2c42/0x7d10 [ 80.761006][ T4330] lock_acquire+0x19e/0x400 [ 80.766043][ T4330] __flush_work+0x116/0x210 [ 80.771087][ T4330] __cancel_work_timer+0x3f4/0x560 [ 80.776753][ T4330] hci_request_cancel_all+0xcc/0x300 [ 80.782583][ T4330] hci_dev_do_close+0x4e/0x1030 [ 80.787968][ T4330] hci_rfkill_set_block+0x10a/0x190 [ 80.793704][ T4330] rfkill_set_block+0x1c6/0x420 [ 80.799090][ T4330] rfkill_fop_write+0x452/0x560 [ 80.804483][ T4330] vfs_write+0x30b/0xd60 [ 80.809269][ T4330] ksys_write+0x152/0x260 [ 80.814140][ T4330] do_syscall_64+0x4c/0xa0 [ 80.819168][ T4330] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 80.825640][ T4330] [ 80.825640][ T4330] other info that might help us debug this: [ 80.825640][ T4330] [ 80.835907][ T4330] Chain exists of: [ 80.835907][ T4330] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 80.835907][ T4330] [ 80.851769][ T4330] Possible unsafe locking scenario: [ 80.851769][ T4330] [ 80.859237][ T4330] CPU0 CPU1 [ 80.864619][ T4330] ---- ---- [ 80.869994][ T4330] lock(rfkill_global_mutex); [ 80.874771][ T4330] lock(&data->open_mutex); [ 80.881904][ T4330] lock(rfkill_global_mutex); [ 80.889219][ T4330] lock((work_completion)(&hdev->bg_scan_update)); [ 80.895832][ T4330] [ 80.895832][ T4330] *** DEADLOCK *** [ 80.895832][ T4330] [ 80.903980][ T4330] 1 lock held by syz.0.17/4330: [ 80.908836][ T4330] #0: ffffffff8d6c51a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 80.918982][ T4330] [ 80.918982][ T4330] stack backtrace: [ 80.924926][ T4330] CPU: 1 PID: 4330 Comm: syz.0.17 Not tainted syzkaller #0 [ 80.932178][ T4330] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 80.942264][ T4330] Call Trace: [ 80.945554][ T4330] [ 80.948495][ T4330] dump_stack_lvl+0x188/0x250 [ 80.953190][ T4330] ? load_image+0x400/0x400 [ 80.957733][ T4330] ? show_regs_print_info+0x20/0x20 [ 80.962955][ T4330] ? print_circular_bug+0x12b/0x1a0 [ 80.968173][ T4330] check_noncircular+0x296/0x330 [ 80.973124][ T4330] ? look_up_lock_class+0x71/0x110 [ 80.978264][ T4330] ? add_chain_block+0x940/0x940 [ 80.983218][ T4330] ? lockdep_lock+0xf1/0x1f0 [ 80.987834][ T4330] ? __lock_acquire+0x12e8/0x7d10 [ 80.992919][ T4330] ? mark_lock+0x94/0x320 [ 80.997271][ T4330] __lock_acquire+0x2c42/0x7d10 [ 81.002144][ T4330] ? verify_lock_unused+0x140/0x140 [ 81.007368][ T4330] ? verify_lock_unused+0x140/0x140 [ 81.012600][ T4330] ? mark_lock+0x94/0x320 [ 81.016973][ T4330] lock_acquire+0x19e/0x400 [ 81.021498][ T4330] ? __flush_work+0xfa/0x210 [ 81.026128][ T4330] ? __lock_acquire+0x7d10/0x7d10 [ 81.031177][ T4330] ? read_lock_is_recursive+0x10/0x10 [ 81.036567][ T4330] ? start_flush_work+0x776/0x820 [ 81.041609][ T4330] __flush_work+0x116/0x210 [ 81.046124][ T4330] ? __flush_work+0xfa/0x210 [ 81.050728][ T4330] ? flush_work+0x20/0x20 [ 81.055094][ T4330] ? try_to_grab_pending+0xfa/0x7f0 [ 81.060310][ T4330] ? mark_lock+0x94/0x320 [ 81.064659][ T4330] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 81.070660][ T4330] ? lock_chain_count+0x20/0x20 [ 81.075523][ T4330] ? mark_lock+0x94/0x320 [ 81.079860][ T4330] ? __cancel_work_timer+0x36a/0x560 [ 81.085158][ T4330] __cancel_work_timer+0x3f4/0x560 [ 81.090294][ T4330] ? cancel_work_sync+0x20/0x20 [ 81.095164][ T4330] ? __cancel_work+0x1f9/0x2e0 [ 81.099956][ T4330] ? lockdep_hardirqs_on+0x94/0x140 [ 81.105175][ T4330] ? __cancel_work+0x27b/0x2e0 [ 81.109972][ T4330] ? cancel_work+0x20/0x20 [ 81.114407][ T4330] ? lock_chain_count+0x20/0x20 [ 81.119274][ T4330] hci_request_cancel_all+0xcc/0x300 [ 81.124573][ T4330] hci_dev_do_close+0x4e/0x1030 [ 81.129456][ T4330] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 81.135356][ T4330] ? _raw_spin_unlock+0x40/0x40 [ 81.140303][ T4330] hci_rfkill_set_block+0x10a/0x190 [ 81.145517][ T4330] ? rcu_lock_release+0x20/0x20 [ 81.150375][ T4330] rfkill_set_block+0x1c6/0x420 [ 81.155286][ T4330] rfkill_fop_write+0x452/0x560 [ 81.160165][ T4330] ? rfkill_fop_read+0x4d0/0x4d0 [ 81.165140][ T4330] ? common_file_perm+0x110/0x1c0 [ 81.170164][ T4330] ? fsnotify_perm+0x5d/0x560 [ 81.174841][ T4330] ? security_file_permission+0x75/0xa0 [ 81.180399][ T4330] ? rfkill_fop_read+0x4d0/0x4d0 [ 81.185341][ T4330] vfs_write+0x30b/0xd60 [ 81.189586][ T4330] ? file_end_write+0x250/0x250 [ 81.194437][ T4330] ? __context_tracking_exit+0x4c/0x80 [ 81.199908][ T4330] ? __lock_acquire+0x7d10/0x7d10 [ 81.204951][ T4330] ? __fdget_pos+0x1e2/0x370 [ 81.209545][ T4330] ksys_write+0x152/0x260 [ 81.213879][ T4330] ? __ia32_sys_read+0x80/0x80 [ 81.218650][ T4330] ? lockdep_hardirqs_on+0x94/0x140 [ 81.223854][ T4330] do_syscall_64+0x4c/0xa0 [ 81.228285][ T4330] ? clear_bhb_loop+0x30/0x80 [ 81.232960][ T4330] ? clear_bhb_loop+0x30/0x80 [ 81.237660][ T4330] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 81.243564][ T4330] RIP: 0033:0x7f0eb42e2819 [ 81.247984][ T4330] 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 [ 81.267589][ T4330] RSP: 002b:00007ffeaf657258 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 81.276006][ T4330] RAX: ffffffffffffffda RBX: 00007f0eb455bfa0 RCX: 00007f0eb42e2819 [ 81.283986][ T4330] RDX: 0000000000000008 RSI: 0000200000000040 RDI: 0000000000000003 [ 81.291973][ T4330] RBP: 00007f0eb4378c91 R08: 0000000000000000 R09: 0000000000000000 [ 81.299944][ T4330] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 81.307923][ T4330] R13: 00007f0eb455bfac R14: 00007f0eb455bfa0 R15: 00007f0eb455bfa0 [ 81.315899][ T4330]