Warning: Permanently added '10.128.0.23' (ED25519) to the list of known hosts. 1970/01/01 00:00:39 ignoring optional flag "sandboxArg"="0" 1970/01/01 00:00:41 parsed 1 programs syzkaller login: [ 43.554486][ T4033] cgroup: Unknown subsys name 'net' [ 43.830615][ T4033] cgroup: Unknown subsys name 'rlimit' [ 44.196182][ T4033] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS [ 52.166051][ T148] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 52.167982][ T148] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 52.179011][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 52.186365][ T148] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 52.188342][ T148] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 52.190775][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 52.532367][ T4070] chnl_net:caif_netlink_parms(): no params data found [ 52.601722][ T4070] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.603782][ T4070] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.607877][ T4070] device bridge_slave_0 entered promiscuous mode [ 52.612271][ T4070] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.614136][ T4070] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.616802][ T4070] device bridge_slave_1 entered promiscuous mode [ 52.635589][ T4070] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 52.639880][ T4070] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 52.657179][ T4070] team0: Port device team_slave_0 added [ 52.660349][ T4070] team0: Port device team_slave_1 added [ 52.675603][ T4070] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 52.677324][ T4070] 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. [ 52.683944][ T4070] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 52.689830][ T4070] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 52.691632][ T4070] 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. [ 52.698137][ T4070] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 52.768398][ T4070] device hsr_slave_0 entered promiscuous mode [ 52.806288][ T4070] device hsr_slave_1 entered promiscuous mode [ 52.960021][ T4070] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 53.008778][ T4070] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 53.048293][ T4070] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 53.108211][ T4070] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 53.184151][ T4070] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.186080][ T4070] bridge0: port 2(bridge_slave_1) entered forwarding state [ 53.188247][ T4070] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.190097][ T4070] bridge0: port 1(bridge_slave_0) entered forwarding state [ 53.239951][ T4070] 8021q: adding VLAN 0 to HW filter on device bond0 [ 53.247719][ T1669] bridge0: port 1(bridge_slave_0) entered disabled state [ 53.250404][ T1669] bridge0: port 2(bridge_slave_1) entered disabled state [ 53.262823][ T1669] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 53.267521][ T1669] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 53.270868][ T4070] 8021q: adding VLAN 0 to HW filter on device team0 [ 53.278481][ T368] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 53.280956][ T368] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 53.283571][ T368] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.285376][ T368] bridge0: port 1(bridge_slave_0) entered forwarding state [ 53.297062][ T368] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 53.299620][ T368] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 53.301962][ T368] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.303743][ T368] bridge0: port 2(bridge_slave_1) entered forwarding state [ 53.307451][ T368] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 53.318070][ T368] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 53.320839][ T368] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 53.324266][ T368] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 53.327201][ T368] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 53.329781][ T368] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 53.332381][ T368] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 53.341868][ T4070] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 53.344457][ T4070] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 53.354744][ T368] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 53.357146][ T368] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 53.360615][ T368] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 53.363099][ T368] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 53.367139][ T368] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 53.425828][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 53.427877][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 53.439042][ T4070] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 53.453884][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 53.456661][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 53.470674][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 53.473231][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 53.477797][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 53.480747][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 53.487866][ T4070] device veth0_vlan entered promiscuous mode [ 53.494541][ T4070] device veth1_vlan entered promiscuous mode [ 53.512628][ T368] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 53.515987][ T368] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 53.518411][ T368] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 53.521268][ T368] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 53.527064][ T4070] device veth0_macvtap entered promiscuous mode [ 53.531362][ T4070] device veth1_macvtap entered promiscuous mode [ 53.542546][ T4070] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 53.545835][ T368] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 53.548335][ T368] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 53.550819][ T368] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 53.553467][ T368] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 53.560331][ T4070] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 53.563366][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 53.566560][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 53.570724][ T4070] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 53.572859][ T4070] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 53.576096][ T4070] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 53.578112][ T4070] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 1970/01/01 00:00:54 executed programs: 0 [ 54.817302][ T4118] chnl_net:caif_netlink_parms(): no params data found [ 54.859289][ T4118] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.860977][ T4118] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.863576][ T4118] device bridge_slave_0 entered promiscuous mode [ 54.867799][ T4118] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.869538][ T4118] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.871889][ T4118] device bridge_slave_1 entered promiscuous mode [ 54.887621][ T4118] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 54.892812][ T4118] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 54.908509][ T4118] team0: Port device team_slave_0 added [ 54.912026][ T4118] team0: Port device team_slave_1 added [ 54.925086][ T4118] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 54.926820][ T4118] 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. [ 54.933649][ T4118] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 54.958675][ T4118] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 54.960436][ T4118] 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. [ 54.967497][ T4118] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 55.046888][ T4118] device hsr_slave_0 entered promiscuous mode [ 55.095089][ T4118] device hsr_slave_1 entered promiscuous mode [ 55.144835][ T4118] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 55.146837][ T4118] Cannot create hsr debugfs directory [ 55.211803][ T4118] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 56.765149][ T1961] Bluetooth: hci0: command 0x0409 tx timeout [ 58.455410][ T4118] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 58.600524][ T4118] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 58.663863][ T4118] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 58.844977][ T1961] Bluetooth: hci0: command 0x041b tx timeout [ 58.860306][ T4118] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 58.888947][ T4118] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 58.917535][ T4118] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 58.977084][ T4118] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 59.064907][ T4118] 8021q: adding VLAN 0 to HW filter on device bond0 [ 59.071751][ T1669] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 59.074137][ T1669] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 59.079885][ T4118] 8021q: adding VLAN 0 to HW filter on device team0 [ 59.084323][ T1669] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 59.089326][ T1669] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 59.091728][ T1669] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.093573][ T1669] bridge0: port 1(bridge_slave_0) entered forwarding state [ 59.096067][ T1669] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 59.100848][ T1669] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 59.103409][ T1669] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 59.106634][ T1669] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.108440][ T1669] bridge0: port 2(bridge_slave_1) entered forwarding state [ 59.112948][ T1669] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 59.119241][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 59.124229][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 59.128730][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 59.131857][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 59.139740][ T368] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 59.142371][ T368] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 59.147454][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 59.149872][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 59.155719][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 59.158144][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 59.196996][ T4118] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 59.269020][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 59.270862][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 59.277530][ T4118] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 59.289230][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 59.291737][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 59.303622][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 59.306476][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 59.309025][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 59.311411][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 59.318905][ T4118] device veth0_vlan entered promiscuous mode [ 59.325493][ T4118] device veth1_vlan entered promiscuous mode [ 59.338856][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 59.341302][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 59.343650][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 59.347340][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 59.352577][ T4118] device veth0_macvtap entered promiscuous mode [ 59.357764][ T4118] device veth1_macvtap entered promiscuous mode [ 59.369166][ T4118] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 59.371797][ T4118] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 59.376968][ T4118] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 59.379560][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 59.381955][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 59.384351][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 59.388344][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 59.391936][ T4118] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 59.396914][ T4118] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 59.400299][ T4118] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 59.402356][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 59.405998][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 59.410888][ T4118] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.413031][ T4118] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.415416][ T4118] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.417647][ T4118] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.480146][ T368] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 59.486198][ T368] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 59.489628][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 59.497848][ T368] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 59.499984][ T368] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 59.502566][ T368] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 59.589885][ T4142] [ 59.590518][ T4142] ====================================================== [ 59.592319][ T4142] WARNING: possible circular locking dependency detected [ 59.594127][ T4142] 5.15.178-syzkaller #0 Not tainted [ 59.595499][ T4142] ------------------------------------------------------ [ 59.597258][ T4142] syz.0.16/4142 is trying to acquire lock: [ 59.598684][ T4142] ffff0000d7b10c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xd0/0x1c0 [ 59.601547][ T4142] [ 59.601547][ T4142] but task is already holding lock: [ 59.603358][ T4142] ffff800016f39608 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x250/0x750 [ 59.605833][ T4142] [ 59.605833][ T4142] which lock already depends on the new lock. [ 59.605833][ T4142] [ 59.608567][ T4142] [ 59.608567][ T4142] the existing dependency chain (in reverse order) is: [ 59.610887][ T4142] [ 59.610887][ T4142] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 59.613005][ T4142] __mutex_lock_common+0x194/0x2154 [ 59.614469][ T4142] mutex_lock_nested+0xa4/0xf8 [ 59.615797][ T4142] rfkill_register+0x44/0x7a4 [ 59.617156][ T4142] hci_register_dev+0x3e0/0x880 [ 59.618478][ T4142] vhci_create_device+0x2c4/0x568 [ 59.619816][ T4142] vhci_write+0x318/0x3b8 [ 59.620911][ T4142] vfs_write+0x884/0xb44 [ 59.622056][ T4142] ksys_write+0x15c/0x26c [ 59.623176][ T4142] __arm64_sys_write+0x7c/0x90 [ 59.624547][ T4142] invoke_syscall+0x98/0x2b8 [ 59.625839][ T4142] el0_svc_common+0x138/0x258 [ 59.627140][ T4142] do_el0_svc+0x58/0x14c [ 59.628373][ T4142] el0_svc+0x7c/0x1f0 [ 59.629535][ T4142] el0t_64_sync_handler+0x84/0xe4 [ 59.630896][ T4142] el0t_64_sync+0x1a0/0x1a4 [ 59.632113][ T4142] [ 59.632113][ T4142] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 59.634028][ T4142] __mutex_lock_common+0x194/0x2154 [ 59.635463][ T4142] mutex_lock_nested+0xa4/0xf8 [ 59.636787][ T4142] vhci_send_frame+0x8c/0x10c [ 59.638115][ T4142] hci_send_frame+0x194/0x2f0 [ 59.639455][ T4142] hci_tx_work+0x9ac/0x16cc [ 59.640656][ T4142] process_one_work+0x790/0x11b8 [ 59.641993][ T4142] worker_thread+0x910/0x1034 [ 59.643246][ T4142] kthread+0x37c/0x45c [ 59.644423][ T4142] ret_from_fork+0x10/0x20 [ 59.645623][ T4142] [ 59.645623][ T4142] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 59.647956][ T4142] __flush_work+0xf8/0x1c0 [ 59.649219][ T4142] flush_work+0x24/0x38 [ 59.650329][ T4142] hci_dev_do_close+0x16c/0x1060 [ 59.651698][ T4142] hci_unregister_dev+0x248/0x4d4 [ 59.653040][ T4142] vhci_release+0x74/0xc4 [ 59.654260][ T4142] __fput+0x1c4/0x800 [ 59.655436][ T4142] ____fput+0x20/0x30 [ 59.656522][ T4142] task_work_run+0x130/0x1e4 [ 59.657762][ T4142] do_exit+0x670/0x20bc [ 59.658845][ T4142] do_group_exit+0x110/0x268 [ 59.660171][ T4142] get_signal+0x634/0x1550 [ 59.661469][ T4142] do_notify_resume+0x3d0/0x32b8 [ 59.662859][ T4142] el0_svc+0xfc/0x1f0 [ 59.663985][ T4142] el0t_64_sync_handler+0x84/0xe4 [ 59.665387][ T4142] el0t_64_sync+0x1a0/0x1a4 [ 59.666636][ T4142] [ 59.666636][ T4142] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 59.668539][ T4142] __mutex_lock_common+0x194/0x2154 [ 59.669968][ T4142] mutex_lock_nested+0xa4/0xf8 [ 59.671300][ T4142] bg_scan_update+0x9c/0x470 [ 59.672520][ T4142] process_one_work+0x790/0x11b8 [ 59.673926][ T4142] worker_thread+0x910/0x1034 [ 59.675303][ T4142] kthread+0x37c/0x45c [ 59.676436][ T4142] ret_from_fork+0x10/0x20 [ 59.677673][ T4142] [ 59.677673][ T4142] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 59.680004][ T4142] __lock_acquire+0x32d4/0x7638 [ 59.681359][ T4142] lock_acquire+0x240/0x77c [ 59.682619][ T4142] __flush_work+0xf8/0x1c0 [ 59.683955][ T4142] __cancel_work_timer+0x3ec/0x548 [ 59.685456][ T4142] cancel_work_sync+0x24/0x38 [ 59.686855][ T4142] hci_request_cancel_all+0xcc/0x2d0 [ 59.688225][ T4142] hci_dev_do_close+0x54/0x1060 [ 59.689616][ T4142] hci_rfkill_set_block+0xdc/0x1d0 [ 59.691114][ T4142] rfkill_set_block+0x18c/0x37c [ 59.692416][ T4142] rfkill_fop_write+0x594/0x750 [ 59.693801][ T4142] vfs_write+0x280/0xb44 [ 59.695101][ T4142] ksys_write+0x15c/0x26c [ 59.696336][ T4142] __arm64_sys_write+0x7c/0x90 [ 59.697694][ T4142] invoke_syscall+0x98/0x2b8 [ 59.698967][ T4142] el0_svc_common+0x138/0x258 [ 59.700225][ T4142] do_el0_svc+0x58/0x14c [ 59.701448][ T4142] el0_svc+0x7c/0x1f0 [ 59.702591][ T4142] el0t_64_sync_handler+0x84/0xe4 [ 59.704027][ T4142] el0t_64_sync+0x1a0/0x1a4 [ 59.705314][ T4142] [ 59.705314][ T4142] other info that might help us debug this: [ 59.705314][ T4142] [ 59.708007][ T4142] Chain exists of: [ 59.708007][ T4142] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 59.708007][ T4142] [ 59.711890][ T4142] Possible unsafe locking scenario: [ 59.711890][ T4142] [ 59.713786][ T4142] CPU0 CPU1 [ 59.715198][ T4142] ---- ---- [ 59.716590][ T4142] lock(rfkill_global_mutex); [ 59.717857][ T4142] lock(&data->open_mutex); [ 59.719660][ T4142] lock(rfkill_global_mutex); [ 59.721581][ T4142] lock((work_completion)(&hdev->bg_scan_update)); [ 59.723341][ T4142] [ 59.723341][ T4142] *** DEADLOCK *** [ 59.723341][ T4142] [ 59.725411][ T4142] 1 lock held by syz.0.16/4142: [ 59.726588][ T4142] #0: ffff800016f39608 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x250/0x750 [ 59.729121][ T4142] [ 59.729121][ T4142] stack backtrace: [ 59.730694][ T4142] CPU: 1 PID: 4142 Comm: syz.0.16 Not tainted 5.15.178-syzkaller #0 [ 59.732696][ T4142] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 59.735204][ T4142] Call trace: [ 59.735968][ T4142] dump_backtrace+0x0/0x530 [ 59.737134][ T4142] show_stack+0x2c/0x3c [ 59.738169][ T4142] dump_stack_lvl+0x108/0x170 [ 59.739333][ T4142] dump_stack+0x1c/0x58 [ 59.740378][ T4142] print_circular_bug+0x150/0x1b8 [ 59.741598][ T4142] check_noncircular+0x2cc/0x378 [ 59.742801][ T4142] __lock_acquire+0x32d4/0x7638 [ 59.744008][ T4142] lock_acquire+0x240/0x77c [ 59.745142][ T4142] __flush_work+0xf8/0x1c0 [ 59.746246][ T4142] __cancel_work_timer+0x3ec/0x548 [ 59.747593][ T4142] cancel_work_sync+0x24/0x38 [ 59.748802][ T4142] hci_request_cancel_all+0xcc/0x2d0 [ 59.750035][ T4142] hci_dev_do_close+0x54/0x1060 [ 59.751220][ T4142] hci_rfkill_set_block+0xdc/0x1d0 [ 59.752485][ T4142] rfkill_set_block+0x18c/0x37c [ 59.753717][ T4142] rfkill_fop_write+0x594/0x750 [ 59.754929][ T4142] vfs_write+0x280/0xb44 [ 59.755974][ T4142] ksys_write+0x15c/0x26c [ 59.757157][ T4142] __arm64_sys_write+0x7c/0x90 [ 59.758341][ T4142] invoke_syscall+0x98/0x2b8 [ 59.759531][ T4142] el0_svc_common+0x138/0x258 [ 59.760705][ T4142] do_el0_svc+0x58/0x14c [ 59.761757][ T4142] el0_svc+0x7c/0x1f0 [ 59.762724][ T4142] el0t_64_sync_handler+0x84/0xe4 [ 59.763745][ T4142] el0t_64_sync+0x1a0/0x1a4