[ 18.993213][ T3694] 8021q: adding VLAN 0 to HW filter on device bond0 [ 18.997434][ T3694] eql: remember to turn off Van-Jacobson compression on your slave devices [ 19.035834][ T153] gvnic 0000:00:00.0 enp0s0: Device link is up. [ 19.040554][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): enp0s0: link becomes ready Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.118' (ED25519) to the list of known hosts. 1970/01/01 00:00:46 ignoring optional flag "sandboxArg"="0" 1970/01/01 00:00:46 parsed 1 programs syzkaller login: [ 49.467622][ T4029] cgroup: Unknown subsys name 'net' [ 49.731817][ T4029] cgroup: Unknown subsys name 'rlimit' [ 50.062022][ T4029] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS [ 52.734202][ T4081] chnl_net:caif_netlink_parms(): no params data found [ 52.775768][ T4081] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.778884][ T4081] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.781386][ T4081] device bridge_slave_0 entered promiscuous mode [ 52.785547][ T4081] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.787790][ T4081] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.790034][ T4081] device bridge_slave_1 entered promiscuous mode [ 52.814812][ T4081] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 52.818679][ T4081] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 52.833836][ T4081] team0: Port device team_slave_0 added [ 52.837044][ T4081] team0: Port device team_slave_1 added [ 52.851324][ T4081] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 52.852876][ T4081] 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. [ 52.858749][ T4081] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 52.862780][ T4081] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 52.864299][ T4081] 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. [ 52.870667][ T4081] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 52.938352][ T4081] device hsr_slave_0 entered promiscuous mode [ 52.976391][ T4081] device hsr_slave_1 entered promiscuous mode [ 53.118696][ T4081] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 53.180299][ T4081] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 53.219845][ T4081] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 53.279712][ T4081] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 53.345886][ T4081] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.347635][ T4081] bridge0: port 2(bridge_slave_1) entered forwarding state [ 53.349606][ T4081] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.351133][ T4081] bridge0: port 1(bridge_slave_0) entered forwarding state [ 53.402437][ T4081] 8021q: adding VLAN 0 to HW filter on device bond0 [ 53.410674][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 53.414492][ T136] bridge0: port 1(bridge_slave_0) entered disabled state [ 53.418947][ T136] bridge0: port 2(bridge_slave_1) entered disabled state [ 53.426683][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 53.435414][ T4081] 8021q: adding VLAN 0 to HW filter on device team0 [ 53.443458][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 53.445684][ T136] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.447298][ T136] bridge0: port 1(bridge_slave_0) entered forwarding state [ 53.453826][ T1840] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 53.456681][ T1840] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.458344][ T1840] bridge0: port 2(bridge_slave_1) entered forwarding state [ 53.475203][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 53.479175][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 53.489037][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 53.491394][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 53.498228][ T4081] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 53.501409][ T4081] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 53.503949][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 53.578246][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 53.580046][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 53.586604][ T4081] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 53.603115][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 53.617728][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 53.620453][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 53.622664][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 53.627561][ T4081] device veth0_vlan entered promiscuous mode [ 53.633450][ T4081] device veth1_vlan entered promiscuous mode [ 53.651280][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 53.653579][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 53.656580][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 53.660727][ T4081] device veth0_macvtap entered promiscuous mode [ 53.665028][ T4081] device veth1_macvtap entered promiscuous mode [ 53.677837][ T4081] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 53.679696][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 53.682692][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 53.688261][ T4081] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 53.690138][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 53.695866][ T4081] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 53.698466][ T4081] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 53.700439][ T4081] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 53.702502][ T4081] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 53.934892][ T1840] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 53.942714][ T1840] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 53.949629][ T429] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 53.957713][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 53.959492][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 53.961913][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 1970/01/01 00:00:54 executed programs: 0 [ 54.242617][ T4114] chnl_net:caif_netlink_parms(): no params data found [ 54.279310][ T4114] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.280858][ T4114] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.283023][ T4114] device bridge_slave_0 entered promiscuous mode [ 54.287673][ T4114] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.289307][ T4114] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.291441][ T4114] device bridge_slave_1 entered promiscuous mode [ 54.308004][ T4114] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 54.311728][ T4114] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 54.329092][ T4114] team0: Port device team_slave_0 added [ 54.332147][ T4114] team0: Port device team_slave_1 added [ 54.345119][ T4114] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 54.346808][ T4114] 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. [ 54.352193][ T4114] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 54.355884][ T4114] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 54.358022][ T4114] 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. [ 54.363909][ T4114] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 54.418347][ T4114] device hsr_slave_0 entered promiscuous mode [ 54.476396][ T4114] device hsr_slave_1 entered promiscuous mode [ 54.516171][ T4114] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 54.518001][ T4114] Cannot create hsr debugfs directory [ 54.602885][ T4114] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 56.206696][ T4099] Bluetooth: hci0: command 0x0409 tx timeout [ 57.060947][ T4114] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 58.286346][ T4099] Bluetooth: hci0: command 0x041b tx timeout [ 59.063036][ T4114] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 59.138407][ T4114] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 59.304918][ T4114] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 59.358470][ T4114] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 59.402087][ T4114] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 59.479234][ T4114] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 59.556860][ T4114] 8021q: adding VLAN 0 to HW filter on device bond0 [ 59.563594][ T429] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 59.565923][ T429] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 59.572618][ T4114] 8021q: adding VLAN 0 to HW filter on device team0 [ 59.577638][ T429] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 59.579973][ T429] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 59.582212][ T429] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.583842][ T429] bridge0: port 1(bridge_slave_0) entered forwarding state [ 59.589457][ T429] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 59.597011][ T1840] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 59.599380][ T1840] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 59.601773][ T1840] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.603450][ T1840] bridge0: port 2(bridge_slave_1) entered forwarding state [ 59.605585][ T1840] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 59.616649][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 59.621015][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 59.624558][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 59.635933][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 59.639149][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 59.641908][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 59.644446][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 59.647455][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 59.653165][ T429] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 59.655665][ T429] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 59.659540][ T4114] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 59.997595][ T429] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 59.999471][ T429] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 60.005511][ T4114] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 60.019261][ T429] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 60.021693][ T429] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 60.039367][ T4114] device veth0_vlan entered promiscuous mode [ 60.045011][ T4114] device veth1_vlan entered promiscuous mode [ 60.062628][ T429] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 60.065188][ T429] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 60.069289][ T429] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 60.072075][ T429] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 60.074597][ T429] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 60.078423][ T429] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 60.089158][ T429] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 60.091488][ T429] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 60.095468][ T4114] device veth0_macvtap entered promiscuous mode [ 60.100448][ T4114] device veth1_macvtap entered promiscuous mode [ 60.110936][ T4114] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 60.113331][ T4114] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 60.117891][ T4114] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 60.120031][ T429] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 60.122333][ T429] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 60.124628][ T429] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 60.128886][ T429] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 60.132877][ T4114] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 60.135319][ T4114] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 60.139117][ T4114] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 60.140780][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 60.143189][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 60.147485][ T4114] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 60.149446][ T4114] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 60.151281][ T4114] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 60.153217][ T4114] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 60.191012][ T136] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 60.192835][ T136] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 60.195315][ T429] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 60.211820][ T136] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 60.213691][ T136] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 60.216981][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 1970/01/01 00:01:00 executed programs: 2 [ 60.376284][ T4102] Bluetooth: hci0: command 0x040f tx timeout [ 60.393048][ T4126] [ 60.393623][ T4126] ====================================================== [ 60.395187][ T4126] WARNING: possible circular locking dependency detected [ 60.396751][ T4126] 5.15.173-syzkaller #0 Not tainted [ 60.397823][ T4126] ------------------------------------------------------ [ 60.399394][ T4126] syz.0.15/4126 is trying to acquire lock: [ 60.400598][ T4126] ffff0000d6068c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xd0/0x1c0 [ 60.403200][ T4126] [ 60.403200][ T4126] but task is already holding lock: [ 60.404785][ T4126] ffff800016e77268 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x250/0x750 [ 60.406996][ T4126] [ 60.406996][ T4126] which lock already depends on the new lock. [ 60.406996][ T4126] [ 60.409183][ T4126] [ 60.409183][ T4126] the existing dependency chain (in reverse order) is: [ 60.411060][ T4126] [ 60.411060][ T4126] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 60.412769][ T4126] __mutex_lock_common+0x194/0x2154 [ 60.413995][ T4126] mutex_lock_nested+0xa4/0xf8 [ 60.415155][ T4126] rfkill_register+0x44/0x7a4 [ 60.416286][ T4126] hci_register_dev+0x3e0/0x880 [ 60.417513][ T4126] vhci_create_device+0x2c4/0x568 [ 60.418779][ T4126] vhci_write+0x318/0x3b8 [ 60.419775][ T4126] vfs_write+0x884/0xb44 [ 60.420924][ T4126] ksys_write+0x15c/0x26c [ 60.422026][ T4126] __arm64_sys_write+0x7c/0x90 [ 60.423127][ T4126] invoke_syscall+0x98/0x2b8 [ 60.424189][ T4126] el0_svc_common+0x138/0x258 [ 60.425311][ T4126] do_el0_svc+0x58/0x14c [ 60.426337][ T4126] el0_svc+0x7c/0x1f0 [ 60.427266][ T4126] el0t_64_sync_handler+0x84/0xe4 [ 60.428435][ T4126] el0t_64_sync+0x1a0/0x1a4 [ 60.429554][ T4126] [ 60.429554][ T4126] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 60.431307][ T4126] __mutex_lock_common+0x194/0x2154 [ 60.432621][ T4126] mutex_lock_nested+0xa4/0xf8 [ 60.433825][ T4126] vhci_send_frame+0x8c/0x10c [ 60.435016][ T4126] hci_send_frame+0x194/0x2f0 [ 60.436230][ T4126] hci_tx_work+0x9ac/0x16cc [ 60.437345][ T4126] process_one_work+0x790/0x11b8 [ 60.438519][ T4126] worker_thread+0x910/0x1034 [ 60.439732][ T4126] kthread+0x37c/0x45c [ 60.440794][ T4126] ret_from_fork+0x10/0x20 [ 60.441895][ T4126] [ 60.441895][ T4126] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 60.443907][ T4126] __flush_work+0xf8/0x1c0 [ 60.445001][ T4126] flush_work+0x24/0x38 [ 60.446152][ T4126] hci_dev_do_close+0x16c/0x1060 [ 60.447391][ T4126] hci_unregister_dev+0x248/0x4d4 [ 60.448689][ T4126] vhci_release+0x74/0xc4 [ 60.449823][ T4126] __fput+0x1c4/0x800 [ 60.450798][ T4126] ____fput+0x20/0x30 [ 60.451850][ T4126] task_work_run+0x130/0x1e4 [ 60.453090][ T4126] do_exit+0x670/0x20bc [ 60.454148][ T4126] do_group_exit+0x110/0x268 [ 60.455368][ T4126] get_signal+0x634/0x1550 [ 60.456452][ T4126] do_notify_resume+0x3d0/0x32b8 [ 60.457700][ T4126] el0_svc+0xfc/0x1f0 [ 60.458737][ T4126] el0t_64_sync_handler+0x84/0xe4 [ 60.460009][ T4126] el0t_64_sync+0x1a0/0x1a4 [ 60.461128][ T4126] [ 60.461128][ T4126] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 60.462960][ T4126] __mutex_lock_common+0x194/0x2154 [ 60.464178][ T4126] mutex_lock_nested+0xa4/0xf8 [ 60.465342][ T4126] bg_scan_update+0x9c/0x470 [ 60.466455][ T4126] process_one_work+0x790/0x11b8 [ 60.467640][ T4126] worker_thread+0x910/0x1034 [ 60.468830][ T4126] kthread+0x37c/0x45c [ 60.469813][ T4126] ret_from_fork+0x10/0x20 [ 60.470891][ T4126] [ 60.470891][ T4126] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 60.473067][ T4126] __lock_acquire+0x32d4/0x7638 [ 60.474264][ T4126] lock_acquire+0x240/0x77c [ 60.475451][ T4126] __flush_work+0xf8/0x1c0 [ 60.476686][ T4126] __cancel_work_timer+0x3ec/0x548 [ 60.477954][ T4126] cancel_work_sync+0x24/0x38 [ 60.479202][ T4126] hci_request_cancel_all+0xcc/0x2d0 [ 60.480513][ T4126] hci_dev_do_close+0x54/0x1060 [ 60.481751][ T4126] hci_rfkill_set_block+0xdc/0x1d0 [ 60.483007][ T4126] rfkill_set_block+0x18c/0x37c [ 60.484174][ T4126] rfkill_fop_write+0x594/0x750 [ 60.485414][ T4126] vfs_write+0x280/0xb44 [ 60.486413][ T4126] ksys_write+0x15c/0x26c [ 60.487489][ T4126] __arm64_sys_write+0x7c/0x90 [ 60.488635][ T4126] invoke_syscall+0x98/0x2b8 [ 60.489749][ T4126] el0_svc_common+0x138/0x258 [ 60.490849][ T4126] do_el0_svc+0x58/0x14c [ 60.491898][ T4126] el0_svc+0x7c/0x1f0 [ 60.492790][ T4126] el0t_64_sync_handler+0x84/0xe4 [ 60.493987][ T4126] el0t_64_sync+0x1a0/0x1a4 [ 60.495037][ T4126] [ 60.495037][ T4126] other info that might help us debug this: [ 60.495037][ T4126] [ 60.497444][ T4126] Chain exists of: [ 60.497444][ T4126] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 60.497444][ T4126] [ 60.500881][ T4126] Possible unsafe locking scenario: [ 60.500881][ T4126] [ 60.502571][ T4126] CPU0 CPU1 [ 60.503725][ T4126] ---- ---- [ 60.504839][ T4126] lock(rfkill_global_mutex); [ 60.505867][ T4126] lock(&data->open_mutex); [ 60.507443][ T4126] lock(rfkill_global_mutex); [ 60.509025][ T4126] lock((work_completion)(&hdev->bg_scan_update)); [ 60.510466][ T4126] [ 60.510466][ T4126] *** DEADLOCK *** [ 60.510466][ T4126] [ 60.512310][ T4126] 1 lock held by syz.0.15/4126: [ 60.513307][ T4126] #0: ffff800016e77268 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x250/0x750 [ 60.515554][ T4126] [ 60.515554][ T4126] stack backtrace: [ 60.516887][ T4126] CPU: 1 PID: 4126 Comm: syz.0.15 Not tainted 5.15.173-syzkaller #0 [ 60.518623][ T4126] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 [ 60.520827][ T4126] Call trace: [ 60.521516][ T4126] dump_backtrace+0x0/0x530 [ 60.522563][ T4126] show_stack+0x2c/0x3c [ 60.523469][ T4126] dump_stack_lvl+0x108/0x170 [ 60.524514][ T4126] dump_stack+0x1c/0x58 [ 60.525436][ T4126] print_circular_bug+0x150/0x1b8 [ 60.526496][ T4126] check_noncircular+0x2cc/0x378 [ 60.527645][ T4126] __lock_acquire+0x32d4/0x7638 [ 60.528711][ T4126] lock_acquire+0x240/0x77c [ 60.529745][ T4126] __flush_work+0xf8/0x1c0 [ 60.530775][ T4126] __cancel_work_timer+0x3ec/0x548 [ 60.531924][ T4126] cancel_work_sync+0x24/0x38 [ 60.532980][ T4126] hci_request_cancel_all+0xcc/0x2d0 [ 60.534159][ T4126] hci_dev_do_close+0x54/0x1060 [ 60.535316][ T4126] hci_rfkill_set_block+0xdc/0x1d0 [ 60.536460][ T4126] rfkill_set_block+0x18c/0x37c [ 60.537466][ T4126] rfkill_fop_write+0x594/0x750 [ 60.538544][ T4126] vfs_write+0x280/0xb44 [ 60.539486][ T4126] ksys_write+0x15c/0x26c [ 60.540523][ T4126] __arm64_sys_write+0x7c/0x90 [ 60.541591][ T4126] invoke_syscall+0x98/0x2b8 [ 60.542606][ T4126] el0_svc_common+0x138/0x258 [ 60.543601][ T4126] do_el0_svc+0x58/0x14c [ 60.544630][ T4126] el0_svc+0x7c/0x1f0 [ 60.545503][ T4126] el0t_64_sync_handler+0x84/0xe4 [ 60.546688][ T4126] el0t_64_sync+0x1a0/0x1a4 [ 62.364881][ T153] device hsr_slave_0 left promiscuous mode [ 62.406731][ T153] device hsr_slave_1 left promiscuous mode [ 62.496140][ T153] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 62.497867][ T153] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 62.499894][ T153] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 62.501476][ T153] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 62.503406][ T153] device bridge_slave_1 left promiscuous mode [ 62.504768][ T153] bridge0: port 2(bridge_slave_1) entered disabled state [ 62.546988][ T153] device bridge_slave_0 left promiscuous mode [ 62.548418][ T153] bridge0: port 1(bridge_slave_0) entered disabled state [ 62.666236][ T153] device veth1_macvtap left promiscuous mode [ 62.667662][ T153] device veth0_macvtap left promiscuous mode [ 62.669015][ T153] device veth1_vlan left promiscuous mode [ 62.670240][ T153] device veth0_vlan left promiscuous mode [ 62.825369][ T153] team0 (unregistering): Port device team_slave_1 removed [ 62.834033][ T153] team0 (unregistering): Port device team_slave_0 removed [ 62.840065][ T153] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 62.871161][ T153] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 62.983236][ T153] bond0 (unregistering): Released all slaves 1970/01/01 00:01:05 executed programs: 199 [ 69.647012][ T2056] ieee802154 phy0 wpan0: encryption failed: -22 [ 69.647303][ T13] cfg80211: failed to load regulatory.db [ 69.648616][ T2056] ieee802154 phy1 wpan1: encryption failed: -22 1970/01/01 00:01:10 executed programs: 487