Warning: Permanently added '10.128.0.113' (ED25519) to the list of known hosts. 2026/05/26 03:13:36 parsed 1 programs [ 55.480523][ T4201] cgroup: Unknown subsys name 'net' [ 55.628295][ T4201] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 56.842966][ T4201] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 58.276619][ T656] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 58.287697][ T656] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 58.298026][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 58.316569][ T656] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 58.325123][ T656] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 58.333506][ T656] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 59.587455][ T4249] chnl_net:caif_netlink_parms(): no params data found [ 59.649360][ T4249] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.657360][ T4249] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.665618][ T4249] device bridge_slave_0 entered promiscuous mode [ 59.675494][ T4249] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.682618][ T4249] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.690601][ T4249] device bridge_slave_1 entered promiscuous mode [ 59.711989][ T4249] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.723921][ T4249] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.750212][ T4249] team0: Port device team_slave_0 added [ 59.757954][ T4249] team0: Port device team_slave_1 added [ 59.775211][ T4249] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 59.782250][ T4249] 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. [ 59.808943][ T4249] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 59.821868][ T4249] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 59.829499][ T4249] 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. [ 59.856569][ T4249] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 59.891569][ T4249] device hsr_slave_0 entered promiscuous mode [ 59.899366][ T4249] device hsr_slave_1 entered promiscuous mode [ 60.002323][ T4249] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 60.013792][ T4249] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 60.022573][ T4249] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 60.031762][ T4249] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 60.095246][ T4249] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.105941][ T4249] bridge0: port 2(bridge_slave_1) entered forwarding state [ 60.115013][ T4249] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.122124][ T4249] bridge0: port 1(bridge_slave_0) entered forwarding state [ 60.195049][ T4249] 8021q: adding VLAN 0 to HW filter on device bond0 [ 60.207925][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 60.217000][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.225305][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.239495][ T4249] 8021q: adding VLAN 0 to HW filter on device team0 [ 60.249561][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 60.259086][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.266190][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 60.277199][ T656] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 60.285629][ T656] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.292714][ T656] bridge0: port 2(bridge_slave_1) entered forwarding state [ 60.311699][ T656] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 60.321487][ T656] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 60.337665][ T4249] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 60.348310][ T4249] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 60.361030][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 60.370393][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 60.379797][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 60.389444][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 60.466895][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 60.474856][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 60.487363][ T4249] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 60.515378][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 60.524511][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 60.540861][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 60.550539][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 60.560294][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 60.568600][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 60.578400][ T4249] device veth0_vlan entered promiscuous mode [ 60.601675][ T4249] device veth1_vlan entered promiscuous mode [ 60.619465][ T656] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 60.627806][ T656] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 60.636306][ T656] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 60.645154][ T656] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 60.656911][ T4249] device veth0_macvtap entered promiscuous mode [ 60.681007][ T4249] device veth1_macvtap entered promiscuous mode [ 60.697373][ T4249] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 60.705866][ T656] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 60.714181][ T656] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 60.722033][ T656] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 60.731501][ T656] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 60.743513][ T4249] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 60.750844][ T656] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 60.760140][ T656] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 60.783246][ T4249] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 60.792077][ T4249] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 60.801143][ T4249] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 60.810188][ T4249] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 60.919102][ T4249] syz-executor (4249) used greatest stack depth: 20304 bytes left 2026/05/26 03:13:44 executed programs: 0 [ 61.884873][ T4299] chnl_net:caif_netlink_parms(): no params data found [ 61.941360][ T4299] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.954636][ T4299] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.964137][ T4299] device bridge_slave_0 entered promiscuous mode [ 61.975301][ T4299] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.984578][ T4299] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.995882][ T4299] device bridge_slave_1 entered promiscuous mode [ 62.020412][ T4299] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 62.033109][ T4299] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 62.061285][ T4299] team0: Port device team_slave_0 added [ 62.070210][ T4299] team0: Port device team_slave_1 added [ 62.090961][ T4299] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 62.098217][ T4299] 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. [ 62.124718][ T4299] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 62.142093][ T4299] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 62.149223][ T4299] 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. [ 62.176397][ T4299] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 62.216540][ T4299] device hsr_slave_0 entered promiscuous mode [ 62.223438][ T4299] device hsr_slave_1 entered promiscuous mode [ 62.230298][ T4299] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 62.238355][ T4299] Cannot create hsr debugfs directory [ 62.320454][ T4299] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 63.783897][ T23] Bluetooth: hci0: command 0x0409 tx timeout [ 65.459003][ T4299] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 65.863313][ T4266] Bluetooth: hci0: command 0x041b tx timeout [ 66.218386][ T4299] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 66.268300][ T4299] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 66.439941][ T4299] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 66.448624][ T4299] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 66.459362][ T4299] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 66.467948][ T4299] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 66.522284][ T4299] 8021q: adding VLAN 0 to HW filter on device bond0 [ 66.536895][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 66.546102][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 66.555990][ T4299] 8021q: adding VLAN 0 to HW filter on device team0 [ 66.575948][ T3094] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 66.585606][ T3094] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 66.594444][ T3094] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.602110][ T3094] bridge0: port 1(bridge_slave_0) entered forwarding state [ 66.611078][ T3094] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 66.627612][ T144] device hsr_slave_0 left promiscuous mode [ 66.634035][ T144] device hsr_slave_1 left promiscuous mode [ 66.640566][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 66.648407][ T144] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 66.658025][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 66.666131][ T144] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 66.675400][ T144] device bridge_slave_1 left promiscuous mode [ 66.681651][ T144] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.695450][ T144] device bridge_slave_0 left promiscuous mode [ 66.701712][ T144] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.717657][ T144] device veth1_macvtap left promiscuous mode [ 66.724115][ T144] device veth0_macvtap left promiscuous mode [ 66.730125][ T144] device veth1_vlan left promiscuous mode [ 66.736403][ T144] device veth0_vlan left promiscuous mode [ 66.869946][ T144] team0 (unregistering): Port device team_slave_1 removed [ 66.884370][ T144] team0 (unregistering): Port device team_slave_0 removed [ 66.900189][ T144] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 66.920320][ T144] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 66.969103][ T144] bond0 (unregistering): Released all slaves [ 67.037538][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 67.046128][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 67.054753][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.061795][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.075642][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 67.084253][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 67.100474][ T656] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 67.115145][ T656] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 67.123917][ T656] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 67.133311][ T656] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 67.142291][ T656] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 67.151663][ T656] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 67.160574][ T656] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 67.171188][ T656] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 67.179905][ T656] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 67.190595][ T4299] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 67.281760][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 67.289638][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 67.300550][ T4299] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 67.316740][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 67.325713][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 67.345197][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 67.353931][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 67.362945][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 67.370740][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 67.380904][ T4299] device veth0_vlan entered promiscuous mode [ 67.398084][ T4299] device veth1_vlan entered promiscuous mode [ 67.419058][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 67.427308][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 67.437059][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 67.446964][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 67.458527][ T4299] device veth0_macvtap entered promiscuous mode [ 67.470043][ T4299] device veth1_macvtap entered promiscuous mode [ 67.486220][ T4299] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 67.494479][ T3094] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 67.503420][ T3094] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 67.511416][ T3094] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 67.521080][ T3094] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 67.533533][ T4299] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 67.544513][ T3094] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 67.555771][ T3094] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 67.565655][ T4299] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.575147][ T4299] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.585457][ T4299] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.595137][ T4299] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.666037][ T3094] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 67.682187][ T3094] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 67.691237][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 67.711729][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 67.721401][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 67.729917][ T3094] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 67.841923][ T4313] [ 67.844276][ T4313] ====================================================== [ 67.851297][ T4313] WARNING: possible circular locking dependency detected [ 67.858326][ T4313] syzkaller #0 Not tainted [ 67.862731][ T4313] ------------------------------------------------------ [ 67.869736][ T4313] syz.0.17/4313 is trying to acquire lock: [ 67.875617][ T4313] ffff888076440c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 67.886780][ T4313] [ 67.886780][ T4313] but task is already holding lock: [ 67.894140][ T4313] ffffffff8d6c65a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 67.903804][ T4313] [ 67.903804][ T4313] which lock already depends on the new lock. [ 67.903804][ T4313] [ 67.914308][ T4313] [ 67.914308][ T4313] the existing dependency chain (in reverse order) is: [ 67.923408][ T4313] [ 67.923408][ T4313] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 67.931488][ T4313] __mutex_lock_common+0x1e3/0x2400 [ 67.937210][ T4313] mutex_lock_nested+0x17/0x20 [ 67.942671][ T4313] rfkill_register+0x33/0x980 [ 67.943205][ T4266] Bluetooth: hci0: command 0x040f tx timeout [ 67.947859][ T4313] hci_register_dev+0x452/0x970 [ 67.959169][ T4313] vhci_create_device+0x32c/0x5c0 [ 67.964724][ T4313] vhci_write+0x391/0x450 [ 67.969577][ T4313] vfs_write+0x745/0xd60 [ 67.974341][ T4313] ksys_write+0x152/0x260 [ 67.979183][ T4313] do_syscall_64+0x4c/0xa0 [ 67.984114][ T4313] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 67.990522][ T4313] [ 67.990522][ T4313] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 67.998316][ T4313] __mutex_lock_common+0x1e3/0x2400 [ 68.004026][ T4313] mutex_lock_nested+0x17/0x20 [ 68.009289][ T4313] vhci_send_frame+0x88/0x100 [ 68.014468][ T4313] hci_send_frame+0x1a9/0x2e0 [ 68.019646][ T4313] hci_tx_work+0x9f9/0x1710 [ 68.024647][ T4313] process_one_work+0x85f/0x1010 [ 68.030084][ T4313] worker_thread+0xaa6/0x1290 [ 68.035262][ T4313] kthread+0x436/0x520 [ 68.039832][ T4313] ret_from_fork+0x1f/0x30 [ 68.044747][ T4313] [ 68.044747][ T4313] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 68.053927][ T4313] __flush_work+0x116/0x210 [ 68.058930][ T4313] hci_dev_do_close+0x1e7/0x1030 [ 68.064469][ T4313] hci_unregister_dev+0x2d7/0x580 [ 68.069993][ T4313] vhci_release+0x73/0xc0 [ 68.074826][ T4313] __fput+0x234/0x930 [ 68.079308][ T4313] task_work_run+0x125/0x1a0 [ 68.084400][ T4313] do_exit+0x626/0x20c0 [ 68.089053][ T4313] do_group_exit+0x12e/0x300 [ 68.094142][ T4313] get_signal+0x6d6/0x12d0 [ 68.099097][ T4313] arch_do_signal_or_restart+0xe7/0x12c0 [ 68.105231][ T4313] exit_to_user_mode_loop+0x9e/0x130 [ 68.111128][ T4313] exit_to_user_mode_prepare+0xee/0x180 [ 68.117172][ T4313] syscall_exit_to_user_mode+0x16/0x40 [ 68.123129][ T4313] do_syscall_64+0x58/0xa0 [ 68.128048][ T4313] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 68.134452][ T4313] [ 68.134452][ T4313] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 68.142072][ T4313] __mutex_lock_common+0x1e3/0x2400 [ 68.147773][ T4313] mutex_lock_nested+0x17/0x20 [ 68.153040][ T4313] bg_scan_update+0x44/0x3b0 [ 68.158137][ T4313] process_one_work+0x85f/0x1010 [ 68.163573][ T4313] worker_thread+0xaa6/0x1290 [ 68.168754][ T4313] kthread+0x436/0x520 [ 68.173408][ T4313] ret_from_fork+0x1f/0x30 [ 68.178348][ T4313] [ 68.178348][ T4313] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 68.188136][ T4313] __lock_acquire+0x2c42/0x7d10 [ 68.193491][ T4313] lock_acquire+0x19e/0x400 [ 68.198495][ T4313] __flush_work+0x116/0x210 [ 68.203603][ T4313] __cancel_work_timer+0x3f4/0x560 [ 68.209397][ T4313] hci_request_cancel_all+0xcc/0x300 [ 68.215184][ T4313] hci_dev_do_close+0x4e/0x1030 [ 68.220547][ T4313] hci_rfkill_set_block+0x10a/0x190 [ 68.226529][ T4313] rfkill_set_block+0x1c9/0x3d0 [ 68.231970][ T4313] rfkill_fop_write+0x452/0x560 [ 68.237839][ T4313] vfs_write+0x30b/0xd60 [ 68.242584][ T4313] ksys_write+0x152/0x260 [ 68.247498][ T4313] do_syscall_64+0x4c/0xa0 [ 68.252451][ T4313] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 68.259022][ T4313] [ 68.259022][ T4313] other info that might help us debug this: [ 68.259022][ T4313] [ 68.269233][ T4313] Chain exists of: [ 68.269233][ T4313] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 68.269233][ T4313] [ 68.285018][ T4313] Possible unsafe locking scenario: [ 68.285018][ T4313] [ 68.292446][ T4313] CPU0 CPU1 [ 68.297790][ T4313] ---- ---- [ 68.303135][ T4313] lock(rfkill_global_mutex); [ 68.307875][ T4313] lock(&data->open_mutex); [ 68.314959][ T4313] lock(rfkill_global_mutex); [ 68.322423][ T4313] lock((work_completion)(&hdev->bg_scan_update)); [ 68.329123][ T4313] [ 68.329123][ T4313] *** DEADLOCK *** [ 68.329123][ T4313] [ 68.337331][ T4313] 1 lock held by syz.0.17/4313: [ 68.342159][ T4313] #0: ffffffff8d6c65a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x18b/0x560 [ 68.352228][ T4313] [ 68.352228][ T4313] stack backtrace: [ 68.358120][ T4313] CPU: 1 PID: 4313 Comm: syz.0.17 Not tainted syzkaller #0 [ 68.365305][ T4313] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 68.375354][ T4313] Call Trace: [ 68.378616][ T4313] [ 68.381535][ T4313] dump_stack_lvl+0x188/0x250 [ 68.386194][ T4313] ? load_image+0x400/0x400 [ 68.390674][ T4313] ? show_regs_print_info+0x20/0x20 [ 68.395997][ T4313] ? print_circular_bug+0x12b/0x1a0 [ 68.401262][ T4313] check_noncircular+0x296/0x330 [ 68.406184][ T4313] ? look_up_lock_class+0x71/0x110 [ 68.411622][ T4313] ? add_chain_block+0x940/0x940 [ 68.416536][ T4313] ? lockdep_lock+0xf1/0x1f0 [ 68.421109][ T4313] ? __lock_acquire+0x12e8/0x7d10 [ 68.426113][ T4313] ? mark_lock+0x94/0x320 [ 68.430419][ T4313] __lock_acquire+0x2c42/0x7d10 [ 68.435253][ T4313] ? verify_lock_unused+0x140/0x140 [ 68.440435][ T4313] ? verify_lock_unused+0x140/0x140 [ 68.445645][ T4313] ? mark_lock+0x94/0x320 [ 68.449960][ T4313] lock_acquire+0x19e/0x400 [ 68.454446][ T4313] ? __flush_work+0xfa/0x210 [ 68.459017][ T4313] ? __lock_acquire+0x7d10/0x7d10 [ 68.464023][ T4313] ? read_lock_is_recursive+0x10/0x10 [ 68.469376][ T4313] ? start_flush_work+0x776/0x820 [ 68.474471][ T4313] __flush_work+0x116/0x210 [ 68.479047][ T4313] ? __flush_work+0xfa/0x210 [ 68.483702][ T4313] ? flush_work+0x20/0x20 [ 68.488007][ T4313] ? try_to_grab_pending+0xfa/0x7f0 [ 68.493186][ T4313] ? mark_lock+0x94/0x320 [ 68.497493][ T4313] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 68.503454][ T4313] ? lock_chain_count+0x20/0x20 [ 68.508280][ T4313] ? mark_lock+0x94/0x320 [ 68.512591][ T4313] ? __cancel_work_timer+0x36a/0x560 [ 68.517867][ T4313] __cancel_work_timer+0x3f4/0x560 [ 68.522957][ T4313] ? cancel_work_sync+0x20/0x20 [ 68.527826][ T4313] ? __cancel_work+0x1f9/0x2e0 [ 68.532584][ T4313] ? lockdep_hardirqs_on+0x94/0x140 [ 68.537764][ T4313] ? __cancel_work+0x27b/0x2e0 [ 68.542513][ T4313] ? cancel_work+0x20/0x20 [ 68.546907][ T4313] ? lock_chain_count+0x20/0x20 [ 68.551737][ T4313] hci_request_cancel_all+0xcc/0x300 [ 68.557101][ T4313] hci_dev_do_close+0x4e/0x1030 [ 68.561937][ T4313] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 68.567896][ T4313] ? _raw_spin_unlock+0x40/0x40 [ 68.572725][ T4313] hci_rfkill_set_block+0x10a/0x190 [ 68.577905][ T4313] ? rcu_lock_release+0x20/0x20 [ 68.582742][ T4313] rfkill_set_block+0x1c9/0x3d0 [ 68.587593][ T4313] rfkill_fop_write+0x452/0x560 [ 68.592444][ T4313] ? rfkill_fop_read+0x520/0x520 [ 68.597371][ T4313] ? common_file_perm+0xc0/0x1c0 [ 68.602313][ T4313] ? fsnotify_perm+0x5d/0x560 [ 68.606972][ T4313] ? security_file_permission+0x75/0xa0 [ 68.612512][ T4313] ? rfkill_fop_read+0x520/0x520 [ 68.617431][ T4313] vfs_write+0x30b/0xd60 [ 68.621757][ T4313] ? file_end_write+0x250/0x250 [ 68.626677][ T4313] ? __context_tracking_exit+0x4c/0x80 [ 68.632119][ T4313] ? __lock_acquire+0x7d10/0x7d10 [ 68.637128][ T4313] ? __fdget_pos+0x1e2/0x370 [ 68.641706][ T4313] ksys_write+0x152/0x260 [ 68.646028][ T4313] ? __ia32_sys_read+0x80/0x80 [ 68.650881][ T4313] ? lockdep_hardirqs_on+0x94/0x140 [ 68.656158][ T4313] do_syscall_64+0x4c/0xa0 [ 68.660579][ T4313] ? clear_bhb_loop+0x30/0x80 [ 68.665250][ T4313] ? clear_bhb_loop+0x30/0x80 [ 68.669908][ T4313] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 68.675792][ T4313] RIP: 0033:0x7fdd42f4fe59 [ 68.680191][ T4313] 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 [ 68.699863][ T4313] RSP: 002b:00007ffcf72593f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 68.708371][ T4313] RAX: ffffffffffffffda RBX: 00007fdd431c8fa0 RCX: 00007fdd42f4fe59 [ 68.716604][ T4313] RDX: 0000000000000008 RSI: 0000200000000000 RDI: 0000000000000003 [ 68.724651][ T4313] RBP: 00007fdd42fe5d6f R08: 0000000000000000 R09: 0000000000000000 [ 68.732611][ T4313] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 68.740924][ T4313] R13: 00007fdd431c8fac R14: 00007fdd431c8fa0 R15: 00007fdd431c8fa0 [ 68.748979][ T4313]