Warning: Permanently added '10.128.0.199' (ED25519) to the list of known hosts. 2025/06/16 07:00:26 ignoring optional flag "sandboxArg"="0" 2025/06/16 07:00:27 parsed 1 programs [ 70.341936][ T4174] cgroup: Unknown subsys name 'net' [ 70.508674][ T4174] cgroup: Unknown subsys name 'rlimit' [ 71.344790][ T1422] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.351305][ T1422] ieee802154 phy1 wpan1: encryption failed: -22 [ 71.997360][ T4174] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 73.527648][ T4188] syz-executor (4188) used greatest stack depth: 20928 bytes left [ 74.260526][ T1166] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.287832][ T154] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.292000][ T1166] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.297183][ T154] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.305411][ T1166] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 74.319843][ T1166] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 75.023419][ T4227] chnl_net:caif_netlink_parms(): no params data found [ 75.088867][ T4227] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.096791][ T4227] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.105345][ T4227] device bridge_slave_0 entered promiscuous mode [ 75.115264][ T4227] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.122463][ T4227] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.130775][ T4227] device bridge_slave_1 entered promiscuous mode [ 75.158673][ T4227] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 75.171468][ T4227] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 75.203980][ T4227] team0: Port device team_slave_0 added [ 75.213650][ T4227] team0: Port device team_slave_1 added [ 75.235449][ T4227] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 75.242703][ T4227] 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. [ 75.269475][ T4227] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 75.282559][ T4227] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 75.289506][ T4227] 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. [ 75.315497][ T4227] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 75.355961][ T4227] device hsr_slave_0 entered promiscuous mode [ 75.363490][ T4227] device hsr_slave_1 entered promiscuous mode [ 75.483495][ T4227] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 75.499580][ T4227] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 75.516368][ T4227] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 75.576503][ T4227] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 75.628515][ T4227] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.635711][ T4227] bridge0: port 2(bridge_slave_1) entered forwarding state [ 75.643641][ T4227] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.650754][ T4227] bridge0: port 1(bridge_slave_0) entered forwarding state [ 75.694828][ T4227] 8021q: adding VLAN 0 to HW filter on device bond0 [ 75.708368][ T1284] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 75.717617][ T1284] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.725991][ T1284] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.734441][ T1284] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 75.749188][ T4227] 8021q: adding VLAN 0 to HW filter on device team0 [ 75.760133][ T1284] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 75.769286][ T1284] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.776479][ T1284] bridge0: port 1(bridge_slave_0) entered forwarding state [ 75.793823][ T1284] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 75.802300][ T1284] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.809341][ T1284] bridge0: port 2(bridge_slave_1) entered forwarding state [ 75.822675][ T1166] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 75.833555][ T1166] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 75.844748][ T1284] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 75.857590][ T1284] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 75.869933][ T1284] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 75.880788][ T4227] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 75.977893][ T1284] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 75.986031][ T1284] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 76.016620][ T4227] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 76.034464][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 76.043461][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 76.060124][ T1166] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 76.071594][ T1166] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 76.086154][ T4227] device veth0_vlan entered promiscuous mode [ 76.093625][ T1166] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 76.101437][ T1166] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 76.130728][ T4227] device veth1_vlan entered promiscuous mode [ 76.150523][ T1166] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 76.158812][ T1166] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 76.167318][ T1166] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 76.177253][ T1166] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 76.204919][ T4227] device veth0_macvtap entered promiscuous mode [ 76.215508][ T4227] device veth1_macvtap entered promiscuous mode [ 76.230977][ T4227] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 76.239008][ T1166] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 76.247845][ T1166] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 76.256191][ T1166] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 76.265252][ T1166] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 76.276383][ T4227] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 76.286724][ T4227] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.295782][ T4227] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.305270][ T4227] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.314284][ T4227] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.325228][ T1166] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 76.333926][ T1166] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 76.458013][ T4227] syz-executor (4227) used greatest stack depth: 20744 bytes left 2025/06/16 07:00:37 executed programs: 0 [ 77.572193][ T4269] chnl_net:caif_netlink_parms(): no params data found [ 77.639199][ T4269] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.648840][ T4269] bridge0: port 1(bridge_slave_0) entered disabled state [ 77.657093][ T4269] device bridge_slave_0 entered promiscuous mode [ 77.670331][ T4269] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.677705][ T4269] bridge0: port 2(bridge_slave_1) entered disabled state [ 77.688339][ T4269] device bridge_slave_1 entered promiscuous mode [ 77.720017][ T4269] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 77.734367][ T4269] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 77.771431][ T4269] team0: Port device team_slave_0 added [ 77.780296][ T4269] team0: Port device team_slave_1 added [ 77.806866][ T4269] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 77.814081][ T4269] 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. [ 77.840526][ T4269] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 77.855835][ T4269] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 77.862990][ T4269] 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. [ 77.890041][ T4269] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 77.936844][ T4269] device hsr_slave_0 entered promiscuous mode [ 77.943855][ T4269] device hsr_slave_1 entered promiscuous mode [ 77.950530][ T4269] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 77.961404][ T4269] Cannot create hsr debugfs directory [ 78.060960][ T4269] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 79.502542][ T7] Bluetooth: hci0: command 0x0409 tx timeout [ 81.088673][ T4269] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 81.127800][ T4269] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 81.178826][ T4269] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 81.313541][ T4269] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 81.322865][ T4269] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 81.335470][ T4269] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 81.349348][ T4269] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 81.409832][ T4269] 8021q: adding VLAN 0 to HW filter on device bond0 [ 81.423617][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 81.431345][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 81.442693][ T4269] 8021q: adding VLAN 0 to HW filter on device team0 [ 81.452812][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 81.461536][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 81.470676][ T154] bridge0: port 1(bridge_slave_0) entered blocking state [ 81.477884][ T154] bridge0: port 1(bridge_slave_0) entered forwarding state [ 81.486008][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 81.513075][ T1166] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 81.522175][ T1166] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 81.530573][ T1166] bridge0: port 2(bridge_slave_1) entered blocking state [ 81.537667][ T1166] bridge0: port 2(bridge_slave_1) entered forwarding state [ 81.562793][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 81.575732][ T1284] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 81.586135][ T4244] Bluetooth: hci0: command 0x041b tx timeout [ 81.590670][ T1284] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 81.606730][ T1284] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 81.644171][ T1284] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 81.655480][ T1284] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 81.666560][ T1284] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 81.677805][ T1284] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 81.686463][ T1284] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 81.695065][ T1284] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 81.703702][ T1284] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 81.714572][ T4269] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 81.789687][ T144] device hsr_slave_0 left promiscuous mode [ 81.799714][ T144] device hsr_slave_1 left promiscuous mode [ 81.809241][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 81.817105][ T144] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 81.845453][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 81.853579][ T144] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 81.861357][ T144] device bridge_slave_1 left promiscuous mode [ 81.871314][ T144] bridge0: port 2(bridge_slave_1) entered disabled state [ 81.889760][ T144] device bridge_slave_0 left promiscuous mode [ 81.896302][ T144] bridge0: port 1(bridge_slave_0) entered disabled state [ 81.918820][ T144] device veth1_macvtap left promiscuous mode [ 81.925394][ T144] device veth0_macvtap left promiscuous mode [ 81.931486][ T144] device veth1_vlan left promiscuous mode [ 81.938286][ T144] device veth0_vlan left promiscuous mode [ 82.168926][ T144] team0 (unregistering): Port device team_slave_1 removed [ 82.182575][ T144] team0 (unregistering): Port device team_slave_0 removed [ 82.196708][ T144] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 82.211011][ T144] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 82.273422][ T144] bond0 (unregistering): Released all slaves [ 82.387648][ T1284] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 82.397642][ T1284] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 82.410165][ T4269] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 82.426874][ T1284] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 82.435786][ T1284] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 82.458177][ T1166] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 82.471438][ T1166] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 82.483256][ T1166] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 82.491011][ T1166] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 82.500903][ T4269] device veth0_vlan entered promiscuous mode [ 82.515045][ T4269] device veth1_vlan entered promiscuous mode [ 82.538916][ T1284] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 82.548079][ T1284] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 82.557234][ T1284] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 82.566297][ T1284] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 82.578252][ T4269] device veth0_macvtap entered promiscuous mode [ 82.588976][ T4269] device veth1_macvtap entered promiscuous mode [ 82.605698][ T4269] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 82.613358][ T1284] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 82.621509][ T1284] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 82.630386][ T1284] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 82.639269][ T1284] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 82.651168][ T4269] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 82.662559][ T4269] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 82.671292][ T4269] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 82.680886][ T4269] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 82.689922][ T4269] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 82.700332][ T1284] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 82.709366][ T1284] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 82.764942][ T1284] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 82.788885][ T1284] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 82.798093][ T154] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 82.808316][ T154] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 82.813987][ T1284] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 82.826359][ T1242] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 82.926912][ T4288] [ 82.929298][ T4288] ====================================================== [ 82.936334][ T4288] WARNING: possible circular locking dependency detected [ 82.943382][ T4288] 5.15.185-syzkaller #0 Not tainted [ 82.948597][ T4288] ------------------------------------------------------ [ 82.955700][ T4288] syz.0.16/4288 is trying to acquire lock: [ 82.961509][ T4288] ffff88801f53cc28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xc1/0x1b0 [ 82.972608][ T4288] [ 82.972608][ T4288] but task is already holding lock: [ 82.979985][ T4288] ffffffff8d4b2748 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 82.989759][ T4288] [ 82.989759][ T4288] which lock already depends on the new lock. [ 82.989759][ T4288] [ 83.000164][ T4288] [ 83.000164][ T4288] the existing dependency chain (in reverse order) is: [ 83.009187][ T4288] [ 83.009187][ T4288] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 83.017194][ T4288] __mutex_lock_common+0x1eb/0x2390 [ 83.022948][ T4288] mutex_lock_nested+0x17/0x20 [ 83.028248][ T4288] rfkill_register+0x33/0x8a0 [ 83.033505][ T4288] hci_register_dev+0x452/0x970 [ 83.038914][ T4288] vhci_create_device+0x32c/0x5c0 [ 83.044482][ T4288] vhci_write+0x391/0x450 [ 83.049353][ T4288] vfs_write+0x712/0xd00 [ 83.054134][ T4288] ksys_write+0x14d/0x250 [ 83.058996][ T4288] do_syscall_64+0x4c/0xa0 [ 83.063954][ T4288] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 83.070384][ T4288] [ 83.070384][ T4288] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 83.078222][ T4288] __mutex_lock_common+0x1eb/0x2390 [ 83.083960][ T4288] mutex_lock_nested+0x17/0x20 [ 83.089396][ T4288] vhci_send_frame+0x88/0x100 [ 83.094607][ T4288] hci_send_frame+0x1a9/0x2e0 [ 83.099816][ T4288] hci_tx_work+0x9f9/0x1710 [ 83.104851][ T4288] process_one_work+0x863/0x1000 [ 83.110323][ T4288] worker_thread+0xaa8/0x12a0 [ 83.115531][ T4288] kthread+0x436/0x520 [ 83.120127][ T4288] ret_from_fork+0x1f/0x30 [ 83.125076][ T4288] [ 83.125076][ T4288] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 83.134304][ T4288] __flush_work+0xdd/0x1b0 [ 83.139270][ T4288] hci_dev_do_close+0x1e7/0x1030 [ 83.144742][ T4288] hci_unregister_dev+0x2d7/0x580 [ 83.150304][ T4288] vhci_release+0x73/0xc0 [ 83.155166][ T4288] __fput+0x234/0x930 [ 83.159688][ T4288] task_work_run+0x125/0x1a0 [ 83.164812][ T4288] do_exit+0x616/0x20a0 [ 83.169503][ T4288] do_group_exit+0x12e/0x300 [ 83.174631][ T4288] get_signal+0x6ca/0x12c0 [ 83.179590][ T4288] arch_do_signal_or_restart+0xc1/0x1300 [ 83.185766][ T4288] exit_to_user_mode_loop+0x9e/0x130 [ 83.191592][ T4288] exit_to_user_mode_prepare+0xb1/0x140 [ 83.197680][ T4288] syscall_exit_to_user_mode+0x16/0x40 [ 83.203680][ T4288] do_syscall_64+0x58/0xa0 [ 83.208639][ T4288] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 83.215081][ T4288] [ 83.215081][ T4288] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 83.222751][ T4288] __mutex_lock_common+0x1eb/0x2390 [ 83.228499][ T4288] mutex_lock_nested+0x17/0x20 [ 83.233796][ T4288] bg_scan_update+0x44/0x3b0 [ 83.238925][ T4288] process_one_work+0x863/0x1000 [ 83.244391][ T4288] worker_thread+0xaa8/0x12a0 [ 83.249604][ T4288] kthread+0x436/0x520 [ 83.254207][ T4288] ret_from_fork+0x1f/0x30 [ 83.259162][ T4288] [ 83.259162][ T4288] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 83.268995][ T4288] __lock_acquire+0x2c33/0x7c60 [ 83.274384][ T4288] lock_acquire+0x197/0x3f0 [ 83.279424][ T4288] __flush_work+0xdd/0x1b0 [ 83.284374][ T4288] __cancel_work_timer+0x3ac/0x520 [ 83.290018][ T4288] hci_request_cancel_all+0xcc/0x300 [ 83.295839][ T4288] hci_dev_do_close+0x4e/0x1030 [ 83.301223][ T4288] hci_rfkill_set_block+0x10a/0x190 [ 83.306949][ T4288] rfkill_set_block+0x1c6/0x420 [ 83.312337][ T4288] rfkill_fop_write+0x458/0x560 [ 83.317709][ T4288] do_iter_write+0x3e4/0x7b0 [ 83.322818][ T4288] do_writev+0x254/0x410 [ 83.327578][ T4288] do_syscall_64+0x4c/0xa0 [ 83.332512][ T4288] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 83.338934][ T4288] [ 83.338934][ T4288] other info that might help us debug this: [ 83.338934][ T4288] [ 83.349153][ T4288] Chain exists of: [ 83.349153][ T4288] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 83.349153][ T4288] [ 83.364878][ T4288] Possible unsafe locking scenario: [ 83.364878][ T4288] [ 83.372325][ T4288] CPU0 CPU1 [ 83.377688][ T4288] ---- ---- [ 83.383050][ T4288] lock(rfkill_global_mutex); [ 83.387811][ T4288] lock(&data->open_mutex); [ 83.394918][ T4288] lock(rfkill_global_mutex); [ 83.402198][ T4288] lock((work_completion)(&hdev->bg_scan_update)); [ 83.408784][ T4288] [ 83.408784][ T4288] *** DEADLOCK *** [ 83.408784][ T4288] [ 83.416924][ T4288] 1 lock held by syz.0.16/4288: [ 83.421768][ T4288] #0: ffffffff8d4b2748 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 83.431863][ T4288] [ 83.431863][ T4288] stack backtrace: [ 83.437763][ T4288] CPU: 1 PID: 4288 Comm: syz.0.16 Not tainted 5.15.185-syzkaller #0 [ 83.445742][ T4288] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 83.455808][ T4288] Call Trace: [ 83.459181][ T4288] [ 83.462198][ T4288] dump_stack_lvl+0x168/0x230 [ 83.466880][ T4288] ? load_image+0x3b0/0x3b0 [ 83.471383][ T4288] ? show_regs_print_info+0x20/0x20 [ 83.476581][ T4288] ? print_circular_bug+0x12b/0x1a0 [ 83.481783][ T4288] check_noncircular+0x274/0x310 [ 83.486722][ T4288] ? add_chain_block+0x940/0x940 [ 83.491658][ T4288] ? lockdep_lock+0xdc/0x1e0 [ 83.496249][ T4288] ? __lock_acquire+0x12d9/0x7c60 [ 83.501273][ T4288] ? lockdep_lock+0x1e0/0x1e0 [ 83.505953][ T4288] ? mark_lock+0x94/0x320 [ 83.510284][ T4288] __lock_acquire+0x2c33/0x7c60 [ 83.515142][ T4288] ? verify_lock_unused+0x140/0x140 [ 83.520344][ T4288] ? verify_lock_unused+0x140/0x140 [ 83.525549][ T4288] lock_acquire+0x197/0x3f0 [ 83.530057][ T4288] ? __flush_work+0xc1/0x1b0 [ 83.534649][ T4288] ? __lock_acquire+0x7c60/0x7c60 [ 83.539675][ T4288] ? read_lock_is_recursive+0x10/0x10 [ 83.545057][ T4288] ? start_flush_work+0x776/0x820 [ 83.550082][ T4288] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 83.555976][ T4288] ? _raw_spin_unlock+0x40/0x40 [ 83.560828][ T4288] __flush_work+0xdd/0x1b0 [ 83.565242][ T4288] ? __flush_work+0xc1/0x1b0 [ 83.569833][ T4288] ? flush_work+0x20/0x20 [ 83.574169][ T4288] ? try_to_grab_pending+0xf3/0x7e0 [ 83.579369][ T4288] ? lockdep_hardirqs_off+0x70/0x100 [ 83.584658][ T4288] ? mark_lock+0x94/0x320 [ 83.588988][ T4288] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 83.594973][ T4288] ? lock_chain_count+0x20/0x20 [ 83.599821][ T4288] ? mark_lock+0x94/0x320 [ 83.604153][ T4288] ? __cancel_work_timer+0x331/0x520 [ 83.609438][ T4288] __cancel_work_timer+0x3ac/0x520 [ 83.614552][ T4288] ? cancel_work_sync+0x20/0x20 [ 83.619403][ T4288] ? __cancel_work+0x1f4/0x2d0 [ 83.624167][ T4288] ? lockdep_hardirqs_on+0x94/0x140 [ 83.629367][ T4288] ? __cancel_work+0x26f/0x2d0 [ 83.634135][ T4288] ? cancel_work+0x20/0x20 [ 83.638551][ T4288] ? lock_chain_count+0x20/0x20 [ 83.643407][ T4288] hci_request_cancel_all+0xcc/0x300 [ 83.648705][ T4288] hci_dev_do_close+0x4e/0x1030 [ 83.653558][ T4288] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 83.659455][ T4288] ? _raw_spin_unlock+0x40/0x40 [ 83.664303][ T4288] hci_rfkill_set_block+0x10a/0x190 [ 83.669501][ T4288] ? rcu_lock_release+0x20/0x20 [ 83.674349][ T4288] rfkill_set_block+0x1c6/0x420 [ 83.679201][ T4288] rfkill_fop_write+0x458/0x560 [ 83.684048][ T4288] ? _copy_from_user+0x111/0x170 [ 83.688988][ T4288] ? rfkill_fop_read+0x4b0/0x4b0 [ 83.693922][ T4288] ? common_file_perm+0x171/0x1c0 [ 83.699048][ T4288] ? fsnotify_perm+0x5d/0x560 [ 83.703737][ T4288] ? security_file_permission+0x75/0xa0 [ 83.709285][ T4288] do_iter_write+0x3e4/0x7b0 [ 83.713883][ T4288] do_writev+0x254/0x410 [ 83.718134][ T4288] ? do_readv+0x3e0/0x3e0 [ 83.722487][ T4288] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 83.728483][ T4288] ? lock_chain_count+0x20/0x20 [ 83.733340][ T4288] ? vtime_user_exit+0x2dc/0x400 [ 83.738299][ T4288] ? lockdep_hardirqs_on+0x94/0x140 [ 83.743518][ T4288] do_syscall_64+0x4c/0xa0 [ 83.747941][ T4288] ? clear_bhb_loop+0x30/0x80 [ 83.752623][ T4288] ? clear_bhb_loop+0x30/0x80 [ 83.757311][ T4288] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 83.763226][ T4288] RIP: 0033:0x7fb6b9a4f929 [ 83.767650][ T4288] 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 [ 83.787254][ T4288] RSP: 002b:00007ffe3081cac8 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 [ 83.795665][ T4288] RAX: ffffffffffffffda RBX: 00007fb6b9c76fa0 RCX: 00007fb6b9a4f929 [ 83.803839][ T4288] RDX: 0000000000000001 RSI: 0000200000000440 RDI: 0000000000000003 [ 83.811807][ T4288] RBP: 00007fb6b9ad1b39 R08: 0000000000000000 R09: 0000000000000000 [ 83.819772][ T4288] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 83.827829][ T4288] R13: 00007fb6b9c76fa0 R14: 00007fb6b9c76fa0 R15: 0000000000000003 [ 83.835807][ T4288] [ 83.864911][ T4240] Bluetooth: hci0: command 0x040f tx timeout