Warning: Permanently added '10.128.0.197' (ED25519) to the list of known hosts. 1970/01/01 00:00:45 ignoring optional flag "sandboxArg"="0" 1970/01/01 00:00:45 parsed 1 programs syzkaller login: [ 48.512830][ T4023] cgroup: Unknown subsys name 'net' [ 48.799454][ T4023] cgroup: Unknown subsys name 'rlimit' [ 49.145518][ T4023] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS [ 58.010116][ T4054] chnl_net:caif_netlink_parms(): no params data found [ 58.053392][ T4054] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.055110][ T4054] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.057479][ T4054] device bridge_slave_0 entered promiscuous mode [ 58.061691][ T4054] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.064216][ T4054] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.066407][ T4054] device bridge_slave_1 entered promiscuous mode [ 58.086705][ T4054] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.090639][ T4054] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.106464][ T4054] team0: Port device team_slave_0 added [ 58.109354][ T4054] team0: Port device team_slave_1 added [ 58.123549][ T4054] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 58.125237][ T4054] 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. [ 58.130791][ T4054] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 58.138211][ T4054] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 58.139708][ T4054] 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. [ 58.145446][ T4054] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 58.224975][ T4054] device hsr_slave_0 entered promiscuous mode [ 58.283137][ T4054] device hsr_slave_1 entered promiscuous mode [ 58.404213][ T4054] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 58.456471][ T4054] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 58.508647][ T4054] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 58.593839][ T4054] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 58.660905][ T4054] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.662645][ T4054] bridge0: port 2(bridge_slave_1) entered forwarding state [ 58.664691][ T4054] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.666174][ T4054] bridge0: port 1(bridge_slave_0) entered forwarding state [ 58.716971][ T4054] 8021q: adding VLAN 0 to HW filter on device bond0 [ 58.728435][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 58.731899][ T148] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.737029][ T148] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.745140][ T4054] 8021q: adding VLAN 0 to HW filter on device team0 [ 58.750846][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 58.753558][ T136] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.755091][ T136] bridge0: port 1(bridge_slave_0) entered forwarding state [ 58.759709][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 58.761978][ T136] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.763643][ T136] bridge0: port 2(bridge_slave_1) entered forwarding state [ 58.780416][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 58.786274][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 58.792651][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 58.800693][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 58.806537][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 58.814628][ T4054] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 58.886286][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 58.888066][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 58.896176][ T4054] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 58.911609][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 58.929215][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 58.931716][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 58.935279][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 58.939761][ T4054] device veth0_vlan entered promiscuous mode [ 58.949917][ T4054] device veth1_vlan entered promiscuous mode [ 58.969226][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 58.971365][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 58.977178][ T4054] device veth0_macvtap entered promiscuous mode [ 58.981429][ T4054] device veth1_macvtap entered promiscuous mode [ 58.995776][ T4054] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 58.997534][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 58.999607][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 59.001989][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 59.007151][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 59.012190][ T4054] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 59.015401][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 59.017668][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 59.021874][ T4054] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.026301][ T4054] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.028073][ T4054] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.029858][ T4054] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.416194][ T136] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 59.417868][ T136] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 59.420465][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 59.439789][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 59.441456][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 59.443891][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 60.038638][ T255] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 1970/01/01 00:01:00 executed programs: 0 [ 60.404743][ T4100] chnl_net:caif_netlink_parms(): no params data found [ 60.440564][ T4100] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.442109][ T4100] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.445606][ T4100] device bridge_slave_0 entered promiscuous mode [ 60.448822][ T4100] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.450458][ T4100] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.452820][ T4100] device bridge_slave_1 entered promiscuous mode [ 60.468564][ T4100] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.472443][ T4100] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.486887][ T4100] team0: Port device team_slave_0 added [ 60.490981][ T4100] team0: Port device team_slave_1 added [ 60.504128][ T4100] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 60.505683][ T4100] 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. [ 60.511128][ T4100] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 60.517848][ T4100] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 60.519357][ T4100] 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. [ 60.524967][ T4100] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 60.584785][ T4100] device hsr_slave_0 entered promiscuous mode [ 60.623204][ T4100] device hsr_slave_1 entered promiscuous mode [ 60.663012][ T4100] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 60.664815][ T4100] Cannot create hsr debugfs directory [ 62.340673][ T255] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 62.353207][ T7] Bluetooth: hci0: command 0x0409 tx timeout [ 64.279072][ T255] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 64.331725][ T255] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 64.422996][ T4061] Bluetooth: hci0: command 0x041b tx timeout [ 65.270383][ T4100] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 65.295304][ T4100] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 65.345683][ T4100] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 65.407002][ T4100] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 65.496077][ T4100] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.505931][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 65.508059][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 65.511493][ T4100] 8021q: adding VLAN 0 to HW filter on device team0 [ 65.517638][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 65.519814][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 65.522099][ T148] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.523736][ T148] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.526396][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 65.531571][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 65.534319][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 65.536334][ T148] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.537867][ T148] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.542289][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 65.548108][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 65.555798][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 65.558138][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 65.561087][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 65.566415][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 65.568981][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 65.573923][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 65.576214][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 65.580833][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 65.583407][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 65.587704][ T4100] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 65.689533][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 65.691245][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 65.699958][ T4100] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 65.716613][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 65.719034][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 65.728321][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 65.730594][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 65.733981][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 65.736056][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 65.739843][ T4100] device veth0_vlan entered promiscuous mode [ 65.747420][ T4100] device veth1_vlan entered promiscuous mode [ 65.760897][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 65.764993][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 65.767405][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 65.769704][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 65.774975][ T4100] device veth0_macvtap entered promiscuous mode [ 65.779194][ T4100] device veth1_macvtap entered promiscuous mode [ 65.789211][ T4100] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 65.791555][ T4100] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 65.795594][ T4100] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 65.797592][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 65.799895][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 65.802012][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 65.806921][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 65.810956][ T4100] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 65.813889][ T4100] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 65.816779][ T4100] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 65.818650][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 65.820831][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 65.825986][ T4100] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.827825][ T4100] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.829577][ T4100] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.831506][ T4100] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.869182][ T148] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 65.870978][ T148] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 65.878536][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 65.889514][ T148] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 65.891424][ T148] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 65.895723][ T1691] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 65.924321][ T4155] [ 65.924859][ T4155] ====================================================== [ 65.926326][ T4155] WARNING: possible circular locking dependency detected [ 65.927733][ T4155] 5.15.172-syzkaller #0 Not tainted [ 65.928788][ T4155] ------------------------------------------------------ [ 65.930211][ T4155] syz.0.15/4155 is trying to acquire lock: [ 65.931363][ T4155] ffff0000d61a0c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xd0/0x1c0 [ 65.933729][ T4155] [ 65.933729][ T4155] but task is already holding lock: [ 65.935283][ T4155] ffff800016e77228 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x250/0x750 [ 65.937328][ T4155] [ 65.937328][ T4155] which lock already depends on the new lock. [ 65.937328][ T4155] [ 65.939812][ T4155] [ 65.939812][ T4155] the existing dependency chain (in reverse order) is: [ 65.941858][ T4155] [ 65.941858][ T4155] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 65.943469][ T4155] __mutex_lock_common+0x194/0x2154 [ 65.944613][ T4155] mutex_lock_nested+0xa4/0xf8 [ 65.945662][ T4155] rfkill_register+0x44/0x7a4 [ 65.946802][ T4155] hci_register_dev+0x3e0/0x880 [ 65.947972][ T4155] vhci_create_device+0x2c4/0x568 [ 65.949241][ T4155] vhci_write+0x318/0x3b8 [ 65.950267][ T4155] vfs_write+0x884/0xb44 [ 65.951329][ T4155] ksys_write+0x15c/0x26c [ 65.952349][ T4155] __arm64_sys_write+0x7c/0x90 [ 65.953566][ T4155] invoke_syscall+0x98/0x2b8 [ 65.954959][ T4155] el0_svc_common+0x138/0x258 [ 65.956042][ T4155] do_el0_svc+0x58/0x14c [ 65.957133][ T4155] el0_svc+0x7c/0x1f0 [ 65.958086][ T4155] el0t_64_sync_handler+0x84/0xe4 [ 65.959223][ T4155] el0t_64_sync+0x1a0/0x1a4 [ 65.960260][ T4155] [ 65.960260][ T4155] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 65.961935][ T4155] __mutex_lock_common+0x194/0x2154 [ 65.963288][ T4155] mutex_lock_nested+0xa4/0xf8 [ 65.964441][ T4155] vhci_send_frame+0x8c/0x10c [ 65.965495][ T4155] hci_send_frame+0x194/0x2f0 [ 65.966546][ T4155] hci_tx_work+0x9ac/0x16cc [ 65.967717][ T4155] process_one_work+0x790/0x11b8 [ 65.968840][ T4155] worker_thread+0x910/0x1034 [ 65.969924][ T4155] kthread+0x37c/0x45c [ 65.970864][ T4155] ret_from_fork+0x10/0x20 [ 65.971850][ T4155] [ 65.971850][ T4155] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 65.973791][ T4155] __flush_work+0xf8/0x1c0 [ 65.974896][ T4155] flush_work+0x24/0x38 [ 65.975904][ T4155] hci_dev_do_close+0x16c/0x1060 [ 65.977158][ T4155] hci_unregister_dev+0x248/0x4d4 [ 65.978423][ T4155] vhci_release+0x74/0xc4 [ 65.979438][ T4155] __fput+0x1c4/0x800 [ 65.980370][ T4155] ____fput+0x20/0x30 [ 65.981264][ T4155] task_work_run+0x130/0x1e4 [ 65.982340][ T4155] do_exit+0x670/0x20bc [ 65.983306][ T4155] do_group_exit+0x110/0x268 [ 65.984339][ T4155] get_signal+0x634/0x1550 [ 65.985388][ T4155] do_notify_resume+0x3d0/0x32b8 [ 65.986559][ T4155] el0_svc+0xfc/0x1f0 [ 65.987515][ T4155] el0t_64_sync_handler+0x84/0xe4 [ 65.988675][ T4155] el0t_64_sync+0x1a0/0x1a4 [ 65.989791][ T4155] [ 65.989791][ T4155] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 65.991424][ T4155] __mutex_lock_common+0x194/0x2154 [ 65.992692][ T4155] mutex_lock_nested+0xa4/0xf8 [ 65.993749][ T4155] bg_scan_update+0x9c/0x470 [ 65.994901][ T4155] process_one_work+0x790/0x11b8 [ 65.996071][ T4155] worker_thread+0x910/0x1034 [ 65.997146][ T4155] kthread+0x37c/0x45c [ 65.998048][ T4155] ret_from_fork+0x10/0x20 [ 65.999031][ T4155] [ 65.999031][ T4155] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 66.001002][ T4155] __lock_acquire+0x32d4/0x7638 [ 66.002071][ T4155] lock_acquire+0x240/0x77c [ 66.003145][ T4155] __flush_work+0xf8/0x1c0 [ 66.004287][ T4155] __cancel_work_timer+0x3ec/0x548 [ 66.005543][ T4155] cancel_work_sync+0x24/0x38 [ 66.006682][ T4155] hci_request_cancel_all+0xcc/0x2d0 [ 66.007892][ T4155] hci_dev_do_close+0x54/0x1060 [ 66.008964][ T4155] hci_rfkill_set_block+0xdc/0x1d0 [ 66.010190][ T4155] rfkill_set_block+0x18c/0x37c [ 66.011350][ T4155] rfkill_fop_write+0x594/0x750 [ 66.012412][ T4155] vfs_write+0x280/0xb44 [ 66.013449][ T4155] ksys_write+0x15c/0x26c [ 66.014478][ T4155] __arm64_sys_write+0x7c/0x90 [ 66.015599][ T4155] invoke_syscall+0x98/0x2b8 [ 66.016808][ T4155] el0_svc_common+0x138/0x258 [ 66.017909][ T4155] do_el0_svc+0x58/0x14c [ 66.018909][ T4155] el0_svc+0x7c/0x1f0 [ 66.019871][ T4155] el0t_64_sync_handler+0x84/0xe4 [ 66.021026][ T4155] el0t_64_sync+0x1a0/0x1a4 [ 66.022092][ T4155] [ 66.022092][ T4155] other info that might help us debug this: [ 66.022092][ T4155] [ 66.024269][ T4155] Chain exists of: [ 66.024269][ T4155] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 66.024269][ T4155] [ 66.027660][ T4155] Possible unsafe locking scenario: [ 66.027660][ T4155] [ 66.029273][ T4155] CPU0 CPU1 [ 66.030370][ T4155] ---- ---- [ 66.031412][ T4155] lock(rfkill_global_mutex); [ 66.032548][ T4155] lock(&data->open_mutex); [ 66.034301][ T4155] lock(rfkill_global_mutex); [ 66.035869][ T4155] lock((work_completion)(&hdev->bg_scan_update)); [ 66.037344][ T4155] [ 66.037344][ T4155] *** DEADLOCK *** [ 66.037344][ T4155] [ 66.039071][ T4155] 1 lock held by syz.0.15/4155: [ 66.040082][ T4155] #0: ffff800016e77228 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x250/0x750 [ 66.042341][ T4155] [ 66.042341][ T4155] stack backtrace: [ 66.043514][ T4155] CPU: 0 PID: 4155 Comm: syz.0.15 Not tainted 5.15.172-syzkaller #0 [ 66.045235][ T4155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 66.047364][ T4155] Call trace: [ 66.048004][ T4155] dump_backtrace+0x0/0x530 [ 66.049001][ T4155] show_stack+0x2c/0x3c [ 66.049885][ T4155] dump_stack_lvl+0x108/0x170 [ 66.050818][ T4155] dump_stack+0x1c/0x58 [ 66.051667][ T4155] print_circular_bug+0x150/0x1b8 [ 66.052785][ T4155] check_noncircular+0x2cc/0x378 [ 66.053850][ T4155] __lock_acquire+0x32d4/0x7638 [ 66.054868][ T4155] lock_acquire+0x240/0x77c [ 66.055808][ T4155] __flush_work+0xf8/0x1c0 [ 66.056731][ T4155] __cancel_work_timer+0x3ec/0x548 [ 66.057871][ T4155] cancel_work_sync+0x24/0x38 [ 66.058890][ T4155] hci_request_cancel_all+0xcc/0x2d0 [ 66.059993][ T4155] hci_dev_do_close+0x54/0x1060 [ 66.061011][ T4155] hci_rfkill_set_block+0xdc/0x1d0 [ 66.062201][ T4155] rfkill_set_block+0x18c/0x37c [ 66.063270][ T4155] rfkill_fop_write+0x594/0x750 [ 66.064367][ T4155] vfs_write+0x280/0xb44 [ 66.065314][ T4155] ksys_write+0x15c/0x26c [ 66.066235][ T4155] __arm64_sys_write+0x7c/0x90 [ 66.067321][ T4155] invoke_syscall+0x98/0x2b8 [ 66.068370][ T4155] el0_svc_common+0x138/0x258 [ 66.069463][ T4155] do_el0_svc+0x58/0x14c [ 66.070287][ T4155] el0_svc+0x7c/0x1f0 [ 66.071152][ T4155] el0t_64_sync_handler+0x84/0xe4 [ 66.072250][ T4155] el0t_64_sync+0x1a0/0x1a4