Warning: Permanently added '10.128.0.189' (ED25519) to the list of known hosts. 1970/01/01 00:00:44 ignoring optional flag "sandboxArg"="0" 1970/01/01 00:00:45 parsed 1 programs syzkaller login: [ 47.904294][ T4030] cgroup: Unknown subsys name 'net' [ 48.162461][ T4030] cgroup: Unknown subsys name 'rlimit' [ 48.522216][ T4030] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS [ 55.384562][ T293] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 55.390704][ T293] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 55.393426][ T1367] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 55.411846][ T293] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 55.413751][ T293] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 55.417032][ T1367] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 55.807838][ T4093] chnl_net:caif_netlink_parms(): no params data found [ 55.847762][ T4093] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.849467][ T4093] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.851751][ T4093] device bridge_slave_0 entered promiscuous mode [ 55.856134][ T4093] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.857724][ T4093] bridge0: port 2(bridge_slave_1) entered disabled state [ 55.860155][ T4093] device bridge_slave_1 entered promiscuous mode [ 55.877930][ T4093] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 55.881954][ T4093] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 55.897968][ T4093] team0: Port device team_slave_0 added [ 55.901677][ T4093] team0: Port device team_slave_1 added [ 55.915064][ T4093] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 55.916773][ T4093] 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. [ 55.922232][ T4093] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 55.926783][ T4093] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 55.928295][ T4093] 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. [ 55.933518][ T4093] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 55.989527][ T4093] device hsr_slave_0 entered promiscuous mode [ 56.027525][ T4093] device hsr_slave_1 entered promiscuous mode [ 56.163137][ T4093] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 56.208274][ T4093] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 56.238424][ T4093] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 56.308094][ T4093] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 56.359924][ T4093] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.361546][ T4093] bridge0: port 2(bridge_slave_1) entered forwarding state [ 56.363682][ T4093] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.365335][ T4093] bridge0: port 1(bridge_slave_0) entered forwarding state [ 56.412042][ T4093] 8021q: adding VLAN 0 to HW filter on device bond0 [ 56.421375][ T136] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.424121][ T136] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.437645][ T4093] 8021q: adding VLAN 0 to HW filter on device team0 [ 56.446118][ T1367] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 56.449233][ T1367] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 56.451583][ T1367] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 56.453869][ T1367] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 56.456817][ T1367] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.458425][ T1367] bridge0: port 1(bridge_slave_0) entered forwarding state [ 56.460754][ T1367] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 56.463246][ T1367] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 56.465445][ T1367] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.467116][ T1367] bridge0: port 2(bridge_slave_1) entered forwarding state [ 56.478080][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 56.480548][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 56.485671][ T1367] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 56.489107][ T1367] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 56.491787][ T1367] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 56.499267][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 56.501878][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 56.507526][ T1713] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 56.509879][ T1713] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 56.517764][ T4093] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 56.520676][ T4093] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 56.523478][ T1367] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 56.526234][ T1367] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 56.605773][ T1367] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 56.609434][ T1367] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 56.617241][ T4093] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 56.634153][ T1367] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 56.639163][ T1367] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 56.665320][ T1367] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 56.668798][ T1367] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 56.671870][ T1367] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 56.674139][ T1367] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 56.680450][ T4093] device veth0_vlan entered promiscuous mode [ 56.688199][ T4093] device veth1_vlan entered promiscuous mode [ 56.703467][ T1367] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 56.705737][ T1367] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 56.708442][ T1367] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 56.710871][ T1367] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 56.717723][ T4093] device veth0_macvtap entered promiscuous mode [ 56.722055][ T4093] device veth1_macvtap entered promiscuous mode [ 56.733934][ T4093] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 56.736096][ T1367] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 56.738396][ T1367] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 56.740461][ T1367] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 56.742772][ T1367] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 56.749673][ T4093] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 56.751630][ T1367] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 56.753990][ T1367] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 56.758658][ T4093] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 56.760635][ T4093] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 56.762526][ T4093] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 56.764510][ T4093] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 1970/01/01 00:00:56 executed programs: 0 [ 56.974311][ T4119] chnl_net:caif_netlink_parms(): no params data found [ 57.013477][ T4119] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.015141][ T4119] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.018997][ T4119] device bridge_slave_0 entered promiscuous mode [ 57.022337][ T4119] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.023815][ T4119] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.026610][ T4119] device bridge_slave_1 entered promiscuous mode [ 57.043320][ T4119] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.047718][ T4119] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.063618][ T4119] team0: Port device team_slave_0 added [ 57.069799][ T4119] team0: Port device team_slave_1 added [ 57.085072][ T4119] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 57.089665][ T4119] 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. [ 57.095159][ T4119] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 57.099140][ T4119] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 57.100655][ T4119] 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. [ 57.106594][ T4119] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 57.158180][ T4119] device hsr_slave_0 entered promiscuous mode [ 57.206621][ T4119] device hsr_slave_1 entered promiscuous mode [ 57.246139][ T4119] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 57.248125][ T4119] Cannot create hsr debugfs directory [ 57.345516][ T4119] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 58.906631][ T1535] Bluetooth: hci0: command 0x0409 tx timeout [ 59.672822][ T4119] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 60.976062][ T21] Bluetooth: hci0: command 0x041b tx timeout [ 62.322747][ T4119] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 62.429124][ T4119] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 62.630549][ T4119] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 62.688323][ T4119] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 62.777939][ T4119] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 62.898217][ T4119] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 63.021016][ T4119] 8021q: adding VLAN 0 to HW filter on device bond0 [ 63.031517][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 63.033752][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 63.042907][ T4119] 8021q: adding VLAN 0 to HW filter on device team0 [ 63.052524][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 63.054923][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 63.057353][ T4115] Bluetooth: hci0: command 0x040f tx timeout [ 63.060753][ T148] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.062429][ T148] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.074892][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 63.077725][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 63.080100][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 63.082326][ T148] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.083827][ T148] bridge0: port 2(bridge_slave_1) entered forwarding state [ 63.089362][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 63.102288][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 63.104884][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 63.112104][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 63.114541][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 63.117618][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 63.129076][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 63.131808][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 63.134062][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 63.136533][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 63.139333][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 63.142611][ T4119] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 63.227275][ T1367] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 63.229033][ T1367] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 63.234686][ T4119] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 63.255377][ T1367] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 63.257777][ T1367] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 63.274645][ T1367] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 63.277557][ T1367] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 63.279834][ T1367] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 63.281978][ T1367] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 63.288851][ T4119] device veth0_vlan entered promiscuous mode [ 63.297782][ T4119] device veth1_vlan entered promiscuous mode [ 63.312456][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 63.314606][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 63.317244][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 63.319516][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 63.323761][ T4119] device veth0_macvtap entered promiscuous mode [ 63.328315][ T4119] device veth1_macvtap entered promiscuous mode [ 63.340137][ T4119] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 63.342546][ T4119] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 63.346720][ T4119] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 63.348526][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 63.350777][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 63.353106][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 63.355514][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 63.360680][ T4119] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 63.362990][ T4119] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 63.368651][ T4119] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 63.370298][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 63.374241][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 63.385671][ T4119] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 63.388932][ T4119] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 63.390879][ T4119] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 63.392725][ T4119] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 63.439330][ T148] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 63.441102][ T148] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 63.443824][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 63.466910][ T293] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 63.468729][ T293] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 63.471441][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 63.576581][ T4131] [ 63.577165][ T4131] ====================================================== [ 63.578733][ T4131] WARNING: possible circular locking dependency detected [ 63.580247][ T4131] 5.15.173-syzkaller #0 Not tainted [ 63.581371][ T4131] ------------------------------------------------------ [ 63.582884][ T4131] syz.0.15/4131 is trying to acquire lock: [ 63.584143][ T4131] ffff0000d5b30c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xd0/0x1c0 [ 63.586662][ T4131] [ 63.586662][ T4131] but task is already holding lock: [ 63.588272][ T4131] ffff800016f25fe8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x250/0x750 [ 63.590450][ T4131] [ 63.590450][ T4131] which lock already depends on the new lock. [ 63.590450][ T4131] [ 63.592697][ T4131] [ 63.592697][ T4131] the existing dependency chain (in reverse order) is: [ 63.594624][ T4131] [ 63.594624][ T4131] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 63.596268][ T4131] __mutex_lock_common+0x194/0x2154 [ 63.597546][ T4131] mutex_lock_nested+0xa4/0xf8 [ 63.598649][ T4131] rfkill_register+0x44/0x7a4 [ 63.599759][ T4131] hci_register_dev+0x3e0/0x880 [ 63.600982][ T4131] vhci_create_device+0x2c4/0x568 [ 63.602110][ T4131] vhci_write+0x318/0x3b8 [ 63.603169][ T4131] vfs_write+0x884/0xb44 [ 63.604181][ T4131] ksys_write+0x15c/0x26c [ 63.605204][ T4131] __arm64_sys_write+0x7c/0x90 [ 63.606359][ T4131] invoke_syscall+0x98/0x2b8 [ 63.607451][ T4131] el0_svc_common+0x138/0x258 [ 63.608566][ T4131] do_el0_svc+0x58/0x14c [ 63.609611][ T4131] el0_svc+0x7c/0x1f0 [ 63.610522][ T4131] el0t_64_sync_handler+0x84/0xe4 [ 63.611802][ T4131] el0t_64_sync+0x1a0/0x1a4 [ 63.612926][ T4131] [ 63.612926][ T4131] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 63.614648][ T4131] __mutex_lock_common+0x194/0x2154 [ 63.615863][ T4131] mutex_lock_nested+0xa4/0xf8 [ 63.616878][ T4131] vhci_send_frame+0x8c/0x10c [ 63.617989][ T4131] hci_send_frame+0x194/0x2f0 [ 63.619142][ T4131] hci_tx_work+0x9ac/0x16cc [ 63.620148][ T4131] process_one_work+0x790/0x11b8 [ 63.621233][ T4131] worker_thread+0x910/0x1034 [ 63.622291][ T4131] kthread+0x37c/0x45c [ 63.623346][ T4131] ret_from_fork+0x10/0x20 [ 63.624460][ T4131] [ 63.624460][ T4131] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 63.626500][ T4131] __flush_work+0xf8/0x1c0 [ 63.627522][ T4131] flush_work+0x24/0x38 [ 63.628550][ T4131] hci_dev_do_close+0x16c/0x1060 [ 63.629731][ T4131] hci_unregister_dev+0x248/0x4d4 [ 63.630931][ T4131] vhci_release+0x74/0xc4 [ 63.632010][ T4131] __fput+0x1c4/0x800 [ 63.632930][ T4131] ____fput+0x20/0x30 [ 63.633870][ T4131] task_work_run+0x130/0x1e4 [ 63.635068][ T4131] do_exit+0x670/0x20bc [ 63.636394][ T4131] do_group_exit+0x110/0x268 [ 63.637617][ T4131] get_signal+0x634/0x1550 [ 63.638772][ T4131] do_notify_resume+0x3d0/0x32b8 [ 63.639871][ T4131] el0_svc+0xfc/0x1f0 [ 63.640907][ T4131] el0t_64_sync_handler+0x84/0xe4 [ 63.642119][ T4131] el0t_64_sync+0x1a0/0x1a4 [ 63.643232][ T4131] [ 63.643232][ T4131] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 63.644871][ T4131] __mutex_lock_common+0x194/0x2154 [ 63.646100][ T4131] mutex_lock_nested+0xa4/0xf8 [ 63.647319][ T4131] bg_scan_update+0x9c/0x470 [ 63.648382][ T4131] process_one_work+0x790/0x11b8 [ 63.649592][ T4131] worker_thread+0x910/0x1034 [ 63.650781][ T4131] kthread+0x37c/0x45c [ 63.651699][ T4131] ret_from_fork+0x10/0x20 [ 63.652904][ T4131] [ 63.652904][ T4131] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 63.655018][ T4131] __lock_acquire+0x32d4/0x7638 [ 63.656237][ T4131] lock_acquire+0x240/0x77c [ 63.657349][ T4131] __flush_work+0xf8/0x1c0 [ 63.658473][ T4131] __cancel_work_timer+0x3ec/0x548 [ 63.659646][ T4131] cancel_work_sync+0x24/0x38 [ 63.660887][ T4131] hci_request_cancel_all+0xcc/0x2d0 [ 63.662156][ T4131] hci_dev_do_close+0x54/0x1060 [ 63.663337][ T4131] hci_rfkill_set_block+0xdc/0x1d0 [ 63.664445][ T4131] rfkill_set_block+0x18c/0x37c [ 63.665616][ T4131] rfkill_fop_write+0x594/0x750 [ 63.666717][ T4131] vfs_write+0x280/0xb44 [ 63.667651][ T4131] ksys_write+0x15c/0x26c [ 63.668680][ T4131] __arm64_sys_write+0x7c/0x90 [ 63.669887][ T4131] invoke_syscall+0x98/0x2b8 [ 63.670993][ T4131] el0_svc_common+0x138/0x258 [ 63.672154][ T4131] do_el0_svc+0x58/0x14c [ 63.673187][ T4131] el0_svc+0x7c/0x1f0 [ 63.674123][ T4131] el0t_64_sync_handler+0x84/0xe4 [ 63.675359][ T4131] el0t_64_sync+0x1a0/0x1a4 [ 63.676520][ T4131] [ 63.676520][ T4131] other info that might help us debug this: [ 63.676520][ T4131] [ 63.678787][ T4131] Chain exists of: [ 63.678787][ T4131] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 63.678787][ T4131] [ 63.682416][ T4131] Possible unsafe locking scenario: [ 63.682416][ T4131] [ 63.684113][ T4131] CPU0 CPU1 [ 63.685297][ T4131] ---- ---- [ 63.686521][ T4131] lock(rfkill_global_mutex); [ 63.687521][ T4131] lock(&data->open_mutex); [ 63.688910][ T4131] lock(rfkill_global_mutex); [ 63.690443][ T4131] lock((work_completion)(&hdev->bg_scan_update)); [ 63.691815][ T4131] [ 63.691815][ T4131] *** DEADLOCK *** [ 63.691815][ T4131] [ 63.693584][ T4131] 1 lock held by syz.0.15/4131: [ 63.694698][ T4131] #0: ffff800016f25fe8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x250/0x750 [ 63.696900][ T4131] [ 63.696900][ T4131] stack backtrace: [ 63.698249][ T4131] CPU: 0 PID: 4131 Comm: syz.0.15 Not tainted 5.15.173-syzkaller #0 [ 63.700023][ T4131] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 63.702118][ T4131] Call trace: [ 63.702753][ T4131] dump_backtrace+0x0/0x530 [ 63.703606][ T4131] show_stack+0x2c/0x3c [ 63.704430][ T4131] dump_stack_lvl+0x108/0x170 [ 63.705398][ T4131] dump_stack+0x1c/0x58 [ 63.706335][ T4131] print_circular_bug+0x150/0x1b8 [ 63.707391][ T4131] check_noncircular+0x2cc/0x378 [ 63.708459][ T4131] __lock_acquire+0x32d4/0x7638 [ 63.709548][ T4131] lock_acquire+0x240/0x77c [ 63.710560][ T4131] __flush_work+0xf8/0x1c0 [ 63.711576][ T4131] __cancel_work_timer+0x3ec/0x548 [ 63.712621][ T4131] cancel_work_sync+0x24/0x38 [ 63.713598][ T4131] hci_request_cancel_all+0xcc/0x2d0 [ 63.714695][ T4131] hci_dev_do_close+0x54/0x1060 [ 63.715766][ T4131] hci_rfkill_set_block+0xdc/0x1d0 [ 63.716950][ T4131] rfkill_set_block+0x18c/0x37c [ 63.718024][ T4131] rfkill_fop_write+0x594/0x750 [ 63.719079][ T4131] vfs_write+0x280/0xb44 [ 63.720033][ T4131] ksys_write+0x15c/0x26c [ 63.721072][ T4131] __arm64_sys_write+0x7c/0x90 [ 63.722091][ T4131] invoke_syscall+0x98/0x2b8 [ 63.723123][ T4131] el0_svc_common+0x138/0x258 [ 63.724053][ T4131] do_el0_svc+0x58/0x14c [ 63.725028][ T4131] el0_svc+0x7c/0x1f0 [ 63.725845][ T4131] el0t_64_sync_handler+0x84/0xe4 [ 63.726887][ T4131] el0t_64_sync+0x1a0/0x1a4