Warning: Permanently added '10.128.1.120' (ED25519) to the list of known hosts. 2026/07/15 03:10:13 parsed 1 programs 2026/07/15 03:10:13 serving rpc on tcp://43251 [ 79.648297][ T4205] cgroup: Unknown subsys name 'net' [ 79.779932][ T4205] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 81.255637][ T4205] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 83.199135][ T4226] chnl_net:caif_netlink_parms(): no params data found [ 83.242663][ T4226] bridge0: port 1(bridge_slave_0) entered blocking state [ 83.250227][ T4226] bridge0: port 1(bridge_slave_0) entered disabled state [ 83.258180][ T4226] device bridge_slave_0 entered promiscuous mode [ 83.267276][ T4226] bridge0: port 2(bridge_slave_1) entered blocking state [ 83.274369][ T4226] bridge0: port 2(bridge_slave_1) entered disabled state [ 83.282253][ T4226] device bridge_slave_1 entered promiscuous mode [ 83.303798][ T4226] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 83.315030][ T4226] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 83.338309][ T4226] team0: Port device team_slave_0 added [ 83.345555][ T4226] team0: Port device team_slave_1 added [ 83.361214][ T4226] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 83.368290][ T4226] 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. [ 83.395035][ T4226] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 83.409118][ T4226] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 83.416252][ T4226] 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. [ 83.442281][ T4226] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 83.471477][ T4226] device hsr_slave_0 entered promiscuous mode [ 83.478148][ T4226] device hsr_slave_1 entered promiscuous mode [ 83.575564][ T4226] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 83.589202][ T4226] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 83.600041][ T4226] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 83.611704][ T4226] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 83.642254][ T4226] bridge0: port 2(bridge_slave_1) entered blocking state [ 83.649515][ T4226] bridge0: port 2(bridge_slave_1) entered forwarding state [ 83.657390][ T4226] bridge0: port 1(bridge_slave_0) entered blocking state [ 83.664484][ T4226] bridge0: port 1(bridge_slave_0) entered forwarding state [ 83.729507][ T4226] 8021q: adding VLAN 0 to HW filter on device bond0 [ 83.745165][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 83.757972][ T144] bridge0: port 1(bridge_slave_0) entered disabled state [ 83.767435][ T144] bridge0: port 2(bridge_slave_1) entered disabled state [ 83.777100][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 83.793148][ T4226] 8021q: adding VLAN 0 to HW filter on device team0 [ 83.805509][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 83.814682][ T144] bridge0: port 1(bridge_slave_0) entered blocking state [ 83.821829][ T144] bridge0: port 1(bridge_slave_0) entered forwarding state [ 83.848244][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 83.858363][ T144] bridge0: port 2(bridge_slave_1) entered blocking state [ 83.865485][ T144] bridge0: port 2(bridge_slave_1) entered forwarding state [ 83.876192][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 83.884906][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 83.900429][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 83.915783][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 83.931856][ T4226] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 83.944664][ T4226] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 83.955661][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 84.097723][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 84.107111][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 84.121583][ T4226] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 84.143655][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 84.171304][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 84.181442][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 84.190877][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 84.202131][ T4226] device veth0_vlan entered promiscuous mode [ 84.216611][ T4226] device veth1_vlan entered promiscuous mode [ 84.247804][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 84.257678][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 84.271271][ T4226] device veth0_macvtap entered promiscuous mode [ 84.282371][ T4226] device veth1_macvtap entered promiscuous mode [ 84.302873][ T4226] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 84.311201][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 84.321107][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 84.329206][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 84.337965][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 84.350092][ T4226] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 84.359984][ T300] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 84.369666][ T300] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 84.382086][ T4226] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 84.392265][ T4226] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 84.401123][ T4226] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 84.410156][ T4226] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 85.006712][ T147] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 85.259667][ T1277] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 85.271216][ T1277] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 85.282850][ T300] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 85.299730][ T300] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 85.309290][ T300] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 85.317423][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2026/07/15 03:10:21 executed programs: 0 [ 86.683379][ T4290] chnl_net:caif_netlink_parms(): no params data found [ 86.721074][ T4290] bridge0: port 1(bridge_slave_0) entered blocking state [ 86.728264][ T4290] bridge0: port 1(bridge_slave_0) entered disabled state [ 86.736447][ T4290] device bridge_slave_0 entered promiscuous mode [ 86.744852][ T4290] bridge0: port 2(bridge_slave_1) entered blocking state [ 86.746954][ T23] cfg80211: failed to load regulatory.db [ 86.752171][ T4290] bridge0: port 2(bridge_slave_1) entered disabled state [ 86.766224][ T4290] device bridge_slave_1 entered promiscuous mode [ 86.790026][ T4290] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 86.801744][ T4290] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 86.823165][ T4290] team0: Port device team_slave_0 added [ 86.830585][ T4290] team0: Port device team_slave_1 added [ 86.846543][ T4290] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 86.853540][ T4290] 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. [ 86.880181][ T4290] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 86.892679][ T4290] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 86.899893][ T4290] 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. [ 86.925891][ T4290] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 86.952924][ T4290] device hsr_slave_0 entered promiscuous mode [ 86.959983][ T4290] device hsr_slave_1 entered promiscuous mode [ 86.966946][ T4290] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 86.974654][ T4290] Cannot create hsr debugfs directory [ 87.541515][ T147] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 88.665534][ T4256] Bluetooth: hci0: command 0x0409 tx timeout [ 89.810430][ T147] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 89.873050][ T147] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 90.734175][ T4290] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 90.744277][ T4290] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 90.744931][ T4256] Bluetooth: hci0: command 0x041b tx timeout [ 90.759292][ T4290] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 90.781635][ T4290] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 90.828832][ T4290] 8021q: adding VLAN 0 to HW filter on device bond0 [ 90.855215][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 90.863061][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 90.874589][ T4290] 8021q: adding VLAN 0 to HW filter on device team0 [ 90.883770][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 90.893362][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 90.902217][ T1277] bridge0: port 1(bridge_slave_0) entered blocking state [ 90.909341][ T1277] bridge0: port 1(bridge_slave_0) entered forwarding state [ 90.920474][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 90.928768][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 90.937717][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 90.946905][ T1277] bridge0: port 2(bridge_slave_1) entered blocking state [ 90.953970][ T1277] bridge0: port 2(bridge_slave_1) entered forwarding state [ 90.975655][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 90.988015][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 90.999586][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 91.008862][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 91.018083][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 91.037336][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 91.046703][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 91.056953][ T300] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 91.065618][ T300] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 91.077726][ T300] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 91.086225][ T300] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 91.096265][ T4290] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 91.116314][ T147] device hsr_slave_0 left promiscuous mode [ 91.122974][ T147] device hsr_slave_1 left promiscuous mode [ 91.130336][ T147] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 91.144882][ T147] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 91.154134][ T147] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 91.161760][ T147] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 91.170031][ T147] device bridge_slave_1 left promiscuous mode [ 91.177056][ T147] bridge0: port 2(bridge_slave_1) entered disabled state [ 91.189972][ T147] device bridge_slave_0 left promiscuous mode [ 91.197065][ T147] bridge0: port 1(bridge_slave_0) entered disabled state [ 91.213880][ T147] device veth1_macvtap left promiscuous mode [ 91.220447][ T147] device veth0_macvtap left promiscuous mode [ 91.226723][ T147] device veth1_vlan left promiscuous mode [ 91.232566][ T147] device veth0_vlan left promiscuous mode [ 91.374336][ T147] team0 (unregistering): Port device team_slave_1 removed [ 91.389763][ T147] team0 (unregistering): Port device team_slave_0 removed [ 91.403108][ T147] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 91.418077][ T147] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 91.471426][ T147] bond0 (unregistering): Released all slaves [ 91.589768][ T300] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 91.600626][ T300] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 91.613290][ T4290] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 91.628087][ T300] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 91.637581][ T300] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 91.659649][ T4290] device veth0_vlan entered promiscuous mode [ 91.672868][ T300] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 91.681365][ T300] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 91.689712][ T300] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 91.697811][ T300] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 91.709935][ T4290] device veth1_vlan entered promiscuous mode [ 91.734557][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 91.742866][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 91.751173][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 91.759725][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 91.769778][ T4290] device veth0_macvtap entered promiscuous mode [ 91.781935][ T4290] device veth1_macvtap entered promiscuous mode [ 91.797555][ T4290] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 91.806686][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 91.814663][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 91.822639][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 91.831523][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 91.841546][ T4290] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 91.851016][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 91.860295][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 91.871258][ T4290] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 91.880781][ T4290] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 91.891599][ T4290] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 91.901022][ T4290] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 91.971553][ T300] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 91.990532][ T300] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 91.999947][ T1277] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 92.022717][ T1277] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 92.032983][ T1277] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 92.041699][ T300] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 92.208302][ T4336] [ 92.210688][ T4336] ====================================================== [ 92.217715][ T4336] WARNING: possible circular locking dependency detected [ 92.224738][ T4336] syzkaller #0 Not tainted [ 92.229160][ T4336] ------------------------------------------------------ [ 92.236177][ T4336] syz.0.17/4336 is trying to acquire lock: [ 92.241983][ T4336] ffff88802a6b5028 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xfa/0x210 [ 92.253060][ T4336] [ 92.253060][ T4336] but task is already holding lock: [ 92.260424][ T4336] ffffffff8d6d3c28 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x1ae/0x560 [ 92.270097][ T4336] [ 92.270097][ T4336] which lock already depends on the new lock. [ 92.270097][ T4336] [ 92.280510][ T4336] [ 92.280510][ T4336] the existing dependency chain (in reverse order) is: [ 92.289536][ T4336] [ 92.289536][ T4336] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 92.297548][ T4336] __mutex_lock_common+0x1e5/0x2400 [ 92.303284][ T4336] mutex_lock_nested+0x17/0x20 [ 92.308578][ T4336] rfkill_register+0x2f/0x970 [ 92.313789][ T4336] hci_register_dev+0x459/0x980 [ 92.319172][ T4336] vhci_create_device+0x32e/0x5c0 [ 92.324727][ T4336] vhci_write+0x389/0x440 [ 92.329586][ T4336] vfs_write+0x748/0xd70 [ 92.334356][ T4336] ksys_write+0x153/0x260 [ 92.339216][ T4336] do_syscall_64+0x4c/0xa0 [ 92.344170][ T4336] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 92.350590][ T4336] [ 92.350590][ T4336] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 92.358417][ T4336] __mutex_lock_common+0x1e5/0x2400 [ 92.364152][ T4336] mutex_lock_nested+0x17/0x20 [ 92.369447][ T4336] vhci_send_frame+0x88/0x100 [ 92.374664][ T4336] hci_send_frame+0x1a9/0x2e0 [ 92.379865][ T4336] hci_tx_work+0x9b5/0x16d0 [ 92.384888][ T4336] process_one_work+0x867/0xff0 [ 92.390263][ T4336] worker_thread+0xad7/0x12a0 [ 92.395454][ T4336] kthread+0x42e/0x520 [ 92.400040][ T4336] ret_from_fork+0x1f/0x30 [ 92.404990][ T4336] [ 92.404990][ T4336] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 92.414194][ T4336] __flush_work+0x116/0x210 [ 92.419223][ T4336] hci_dev_do_close+0x201/0x1020 [ 92.424679][ T4336] hci_unregister_dev+0x2eb/0x590 [ 92.430226][ T4336] vhci_release+0x73/0xc0 [ 92.435075][ T4336] __fput+0x212/0x8c0 [ 92.439573][ T4336] task_work_run+0x125/0x1a0 [ 92.444679][ T4336] do_exit+0x635/0x2110 [ 92.449361][ T4336] do_group_exit+0x12c/0x2f0 [ 92.454471][ T4336] get_signal+0x7eb/0x12e0 [ 92.459409][ T4336] arch_do_signal_or_restart+0xe6/0x12a0 [ 92.465559][ T4336] exit_to_user_mode_loop+0x9e/0x130 [ 92.471358][ T4336] exit_to_user_mode_prepare+0xee/0x180 [ 92.477420][ T4336] syscall_exit_to_user_mode+0x16/0x40 [ 92.483397][ T4336] do_syscall_64+0x58/0xa0 [ 92.488329][ T4336] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 92.494737][ T4336] [ 92.494737][ T4336] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 92.502380][ T4336] __mutex_lock_common+0x1e5/0x2400 [ 92.508112][ T4336] mutex_lock_nested+0x17/0x20 [ 92.513400][ T4336] bg_scan_update+0x44/0x3b0 [ 92.518527][ T4336] process_one_work+0x867/0xff0 [ 92.523911][ T4336] worker_thread+0xad7/0x12a0 [ 92.529114][ T4336] kthread+0x42e/0x520 [ 92.533707][ T4336] ret_from_fork+0x1f/0x30 [ 92.538641][ T4336] [ 92.538641][ T4336] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 92.548452][ T4336] __lock_acquire+0x2c66/0x7b50 [ 92.553824][ T4336] lock_acquire+0x19e/0x400 [ 92.558844][ T4336] __flush_work+0x116/0x210 [ 92.563864][ T4336] __cancel_work_timer+0x3f4/0x560 [ 92.569492][ T4336] hci_request_cancel_all+0xcc/0x300 [ 92.575301][ T4336] hci_dev_do_close+0x4e/0x1020 [ 92.580669][ T4336] hci_rfkill_set_block+0x101/0x180 [ 92.586383][ T4336] rfkill_set_block+0x1c1/0x3c0 [ 92.591752][ T4336] rfkill_fop_write+0x453/0x560 [ 92.597116][ T4336] vfs_write+0x304/0xd70 [ 92.601888][ T4336] ksys_write+0x153/0x260 [ 92.606735][ T4336] do_syscall_64+0x4c/0xa0 [ 92.611668][ T4336] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 92.618075][ T4336] [ 92.618075][ T4336] other info that might help us debug this: [ 92.618075][ T4336] [ 92.628295][ T4336] Chain exists of: [ 92.628295][ T4336] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 92.628295][ T4336] [ 92.644012][ T4336] Possible unsafe locking scenario: [ 92.644012][ T4336] [ 92.651453][ T4336] CPU0 CPU1 [ 92.656810][ T4336] ---- ---- [ 92.662184][ T4336] lock(rfkill_global_mutex); [ 92.666941][ T4336] lock(&data->open_mutex); [ 92.674048][ T4336] lock(rfkill_global_mutex); [ 92.681324][ T4336] lock((work_completion)(&hdev->bg_scan_update)); [ 92.687904][ T4336] [ 92.687904][ T4336] *** DEADLOCK *** [ 92.687904][ T4336] [ 92.696039][ T4336] 1 lock held by syz.0.17/4336: [ 92.700879][ T4336] #0: ffffffff8d6d3c28 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x1ae/0x560 [ 92.710961][ T4336] [ 92.710961][ T4336] stack backtrace: [ 92.716841][ T4336] CPU: 0 PID: 4336 Comm: syz.0.17 Not tainted syzkaller #0 [ 92.724030][ T4336] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/25/2026 [ 92.734080][ T4336] Call Trace: [ 92.737359][ T4336] [ 92.740285][ T4336] dump_stack_lvl+0x188/0x250 [ 92.744958][ T4336] ? load_image+0x410/0x410 [ 92.749460][ T4336] ? show_regs_print_info+0x20/0x20 [ 92.754655][ T4336] ? print_circular_bug+0x12b/0x1a0 [ 92.759846][ T4336] check_noncircular+0x296/0x330 [ 92.764778][ T4336] ? look_up_lock_class+0x71/0x110 [ 92.769889][ T4336] ? add_chain_block+0x9b0/0x9b0 [ 92.774819][ T4336] ? lockdep_lock+0xf1/0x1f0 [ 92.779412][ T4336] ? __lock_acquire+0x1305/0x7b50 [ 92.784432][ T4336] ? mark_lock+0x94/0x320 [ 92.788756][ T4336] ? _find_first_zero_bit+0xd1/0xf0 [ 92.793950][ T4336] __lock_acquire+0x2c66/0x7b50 [ 92.798800][ T4336] ? verify_lock_unused+0x140/0x140 [ 92.804000][ T4336] ? verify_lock_unused+0x140/0x140 [ 92.809200][ T4336] lock_acquire+0x19e/0x400 [ 92.813708][ T4336] ? __flush_work+0xfa/0x210 [ 92.818292][ T4336] ? __lock_acquire+0x7b50/0x7b50 [ 92.823320][ T4336] ? read_lock_is_recursive+0x10/0x10 [ 92.828690][ T4336] ? start_flush_work+0x784/0x830 [ 92.833722][ T4336] __flush_work+0x116/0x210 [ 92.838241][ T4336] ? __flush_work+0xfa/0x210 [ 92.842839][ T4336] ? flush_work+0x20/0x20 [ 92.847168][ T4336] ? try_to_grab_pending+0xfb/0x820 [ 92.852370][ T4336] ? mark_lock+0x94/0x320 [ 92.856701][ T4336] ? lockdep_hardirqs_on_prepare+0x448/0x7c0 [ 92.862699][ T4336] ? lock_chain_count+0x20/0x20 [ 92.867549][ T4336] ? mark_lock+0x94/0x320 [ 92.871875][ T4336] ? __cancel_work_timer+0x36a/0x560 [ 92.877155][ T4336] __cancel_work_timer+0x3f4/0x560 [ 92.882264][ T4336] ? cancel_work_sync+0x20/0x20 [ 92.887116][ T4336] ? __cancel_work+0x1f9/0x2e0 [ 92.891875][ T4336] ? lockdep_hardirqs_on+0x94/0x140 [ 92.897067][ T4336] ? __cancel_work+0x27b/0x2e0 [ 92.901827][ T4336] ? cancel_work+0x20/0x20 [ 92.906237][ T4336] hci_request_cancel_all+0xcc/0x300 [ 92.911524][ T4336] hci_dev_do_close+0x4e/0x1020 [ 92.916372][ T4336] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 92.922265][ T4336] ? _raw_spin_unlock+0x40/0x40 [ 92.927123][ T4336] hci_rfkill_set_block+0x101/0x180 [ 92.932320][ T4336] ? rcu_lock_release+0x20/0x20 [ 92.937166][ T4336] rfkill_set_block+0x1c1/0x3c0 [ 92.942014][ T4336] rfkill_fop_write+0x453/0x560 [ 92.946867][ T4336] ? rfkill_fop_read+0x560/0x560 [ 92.951800][ T4336] ? common_file_perm+0xf0/0x1c0 [ 92.956731][ T4336] ? fsnotify_perm+0x5d/0x560 [ 92.961402][ T4336] ? security_file_permission+0x75/0xa0 [ 92.966941][ T4336] ? rfkill_fop_read+0x560/0x560 [ 92.971878][ T4336] vfs_write+0x304/0xd70 [ 92.976131][ T4336] ? file_end_write+0x250/0x250 [ 92.980977][ T4336] ? __context_tracking_exit+0x4c/0x80 [ 92.986433][ T4336] ? __fdget_pos+0x1e2/0x370 [ 92.991021][ T4336] ksys_write+0x153/0x260 [ 92.995349][ T4336] ? __ia32_sys_read+0x80/0x80 [ 93.000114][ T4336] ? lockdep_hardirqs_on+0x94/0x140 [ 93.005307][ T4336] do_syscall_64+0x4c/0xa0 [ 93.009717][ T4336] ? clear_bhb_loop+0x30/0x80 [ 93.014388][ T4336] ? clear_bhb_loop+0x30/0x80 [ 93.019057][ T4336] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 93.024945][ T4336] RIP: 0033:0x7f4260dcde59 [ 93.029358][ T4336] 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 [ 93.048958][ T4336] RSP: 002b:00007fff6da917e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 93.057370][ T4336] RAX: ffffffffffffffda RBX: 00007f4261055fa0 RCX: 00007f4260dcde59 [ 93.065343][ T4336] RDX: 0000000000000008 RSI: 0000200000000000 RDI: 0000000000000003 [ 93.073321][ T4336] RBP: 00007f4260e63e6f R08: 0000000000000000 R09: 0000000000000000 [ 93.081290][ T4336] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 93.089261][ T4336] R13: 00007f4261055fac R14: 00007f4261055fa0 R15: 00007f4261055fa0 [ 93.097246][ T4336] [ 93.103302][ T4232] Bluetooth: hci0: command 0x040f tx timeout