[ 19.419431][ T3695] 8021q: adding VLAN 0 to HW filter on device bond0 [ 19.423815][ T3695] eql: remember to turn off Van-Jacobson compression on your slave devices [ 19.478771][ T569] gvnic 0000:00:00.0 enp0s0: Device link is up. [ 19.484726][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): enp0s0: link becomes ready Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.18' (ED25519) to the list of known hosts. 1970/01/01 00:00:39 ignoring optional flag "sandboxArg"="0" 1970/01/01 00:00:40 parsed 1 programs syzkaller login: [ 42.891017][ T4027] cgroup: Unknown subsys name 'net' [ 43.142844][ T4027] cgroup: Unknown subsys name 'rlimit' [ 43.509592][ T4027] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS [ 51.885926][ T1678] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 51.888364][ T1678] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 51.891224][ T1678] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 51.910883][ T1678] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 51.912935][ T1678] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 51.915541][ T1678] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 52.327054][ T4064] chnl_net:caif_netlink_parms(): no params data found [ 52.369629][ T4064] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.371583][ T4064] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.374325][ T4064] device bridge_slave_0 entered promiscuous mode [ 52.379733][ T4064] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.381617][ T4064] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.384211][ T4064] device bridge_slave_1 entered promiscuous mode [ 52.404722][ T4064] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 52.410667][ T4064] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 52.429385][ T4064] team0: Port device team_slave_0 added [ 52.433819][ T4064] team0: Port device team_slave_1 added [ 52.449657][ T4064] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 52.451487][ T4064] 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. [ 52.459168][ T4064] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 52.464126][ T4064] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 52.468209][ T4064] 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. [ 52.474789][ T4064] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 52.540190][ T4064] device hsr_slave_0 entered promiscuous mode [ 52.578127][ T4064] device hsr_slave_1 entered promiscuous mode [ 52.714254][ T4064] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 52.761139][ T4064] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 52.800407][ T4064] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 52.855059][ T4064] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 52.973901][ T4064] 8021q: adding VLAN 0 to HW filter on device bond0 [ 52.982828][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 52.989971][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 52.998811][ T4064] 8021q: adding VLAN 0 to HW filter on device team0 [ 53.003374][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 53.006060][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 53.009745][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.011742][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 53.015071][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 53.024142][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 53.027559][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 53.030116][ T136] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.032099][ T136] bridge0: port 2(bridge_slave_1) entered forwarding state [ 53.050226][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 53.053602][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 53.058267][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 53.061596][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 53.064448][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 53.067898][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 53.076267][ T4064] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 53.079884][ T4064] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 53.085256][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 53.089271][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 53.091903][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 53.095527][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 53.100211][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 53.107600][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 53.181400][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 53.184117][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 53.192043][ T4064] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 53.208092][ T1678] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 53.210812][ T1678] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 53.224331][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 53.227388][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 53.230478][ T4064] device veth0_vlan entered promiscuous mode [ 53.239463][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 53.241994][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 53.245575][ T4064] device veth1_vlan entered promiscuous mode [ 53.264553][ T1678] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 53.268048][ T1678] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 53.271047][ T1678] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 53.273904][ T1678] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 53.279962][ T4064] device veth0_macvtap entered promiscuous mode [ 53.287095][ T4064] device veth1_macvtap entered promiscuous mode [ 53.302997][ T4064] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 53.306989][ T1678] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 53.310108][ T1678] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 53.313251][ T1678] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 53.315986][ T1678] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 53.321769][ T4064] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 53.323828][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 53.327718][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 53.332938][ T4064] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 53.335392][ T4064] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 53.338188][ T4064] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 53.340507][ T4064] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 1970/01/01 00:00:54 executed programs: 0 [ 54.589770][ T4116] chnl_net:caif_netlink_parms(): no params data found [ 54.632510][ T4116] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.634439][ T4116] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.637400][ T4116] device bridge_slave_0 entered promiscuous mode [ 54.641036][ T4116] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.643039][ T4116] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.645849][ T4116] device bridge_slave_1 entered promiscuous mode [ 54.678305][ T4116] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 54.683573][ T4116] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 54.701298][ T4116] team0: Port device team_slave_0 added [ 54.704955][ T4116] team0: Port device team_slave_1 added [ 54.721020][ T4116] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 54.722830][ T4116] 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. [ 54.730053][ T4116] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 54.734450][ T4116] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 54.736818][ T4116] 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. [ 54.743754][ T4116] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 54.798513][ T4116] device hsr_slave_0 entered promiscuous mode [ 54.837957][ T4116] device hsr_slave_1 entered promiscuous mode [ 54.886648][ T4116] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 54.888938][ T4116] Cannot create hsr debugfs directory [ 54.982560][ T4116] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 56.517444][ T1962] Bluetooth: hci0: command 0x0409 tx timeout [ 58.404967][ T4116] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 58.597371][ T4124] Bluetooth: hci0: command 0x041b tx timeout [ 58.824132][ T4116] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 58.897156][ T4116] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 59.061038][ T4116] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 59.099096][ T4116] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 59.129234][ T4116] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 59.170077][ T4116] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 59.259212][ T4116] 8021q: adding VLAN 0 to HW filter on device bond0 [ 59.269682][ T4116] 8021q: adding VLAN 0 to HW filter on device team0 [ 59.272331][ T1678] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 59.275185][ T1678] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 59.280716][ T1678] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 59.283711][ T1678] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 59.286269][ T1678] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.288330][ T1678] bridge0: port 1(bridge_slave_0) entered forwarding state [ 59.291039][ T1678] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 59.296185][ T1678] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 59.299212][ T1678] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 59.301736][ T1678] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.303621][ T1678] bridge0: port 2(bridge_slave_1) entered forwarding state [ 59.311806][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 59.319615][ T1678] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 59.324141][ T1678] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 59.329062][ T1678] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 59.332447][ T1678] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 59.337603][ T1678] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 59.340505][ T1678] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 59.345686][ T1678] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 59.349607][ T1678] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 59.355157][ T1678] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 59.359480][ T1678] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 59.365027][ T4116] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 59.459150][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 59.461538][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 59.468538][ T4116] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 59.481334][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 59.484118][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 59.499336][ T4116] device veth0_vlan entered promiscuous mode [ 59.501581][ T1678] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 59.504393][ T1678] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 59.508595][ T1678] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 59.511189][ T1678] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 59.519745][ T4116] device veth1_vlan entered promiscuous mode [ 59.538213][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 59.540907][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 59.543560][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 59.546275][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 59.552841][ T4116] device veth0_macvtap entered promiscuous mode [ 59.560229][ T4116] device veth1_macvtap entered promiscuous mode [ 59.571149][ T4116] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 59.574022][ T4116] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 59.578453][ T4116] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 59.580510][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 59.583906][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 59.586620][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 59.589527][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 59.594304][ T4116] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 59.597466][ T4116] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 59.601045][ T4116] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 59.603596][ T1678] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 59.610986][ T1678] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 59.617518][ T4116] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.619823][ T4116] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.622061][ T4116] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.624430][ T4116] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.674337][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 59.684816][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 59.689816][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 59.690208][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 59.693909][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 59.699810][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 59.737951][ T4130] input: syz0 as /devices/virtual/input/input2 [ 59.795128][ T4079] [ 59.795756][ T4079] ====================================================== [ 59.797441][ T4079] WARNING: possible circular locking dependency detected [ 59.799165][ T4079] 5.15.178-syzkaller #0 Not tainted [ 59.800414][ T4079] ------------------------------------------------------ [ 59.802178][ T4079] kworker/0:8/4079 is trying to acquire lock: [ 59.803621][ T4079] ffff0000d6404c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xd0/0x1c0 [ 59.806212][ T4079] [ 59.806212][ T4079] but task is already holding lock: [ 59.807929][ T4079] ffff800016f39608 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_epo+0x58/0x158 [ 59.810118][ T4079] [ 59.810118][ T4079] which lock already depends on the new lock. [ 59.810118][ T4079] [ 59.812634][ T4079] [ 59.812634][ T4079] the existing dependency chain (in reverse order) is: [ 59.814839][ T4079] [ 59.814839][ T4079] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 59.816767][ T4079] __mutex_lock_common+0x194/0x2154 [ 59.818142][ T4079] mutex_lock_nested+0xa4/0xf8 [ 59.819452][ T4079] rfkill_register+0x44/0x7a4 [ 59.820716][ T4079] hci_register_dev+0x3e0/0x880 [ 59.822000][ T4079] vhci_create_device+0x2c4/0x568 [ 59.823299][ T4079] vhci_write+0x318/0x3b8 [ 59.824448][ T4079] vfs_write+0x884/0xb44 [ 59.825603][ T4079] ksys_write+0x15c/0x26c [ 59.826760][ T4079] __arm64_sys_write+0x7c/0x90 [ 59.828001][ T4079] invoke_syscall+0x98/0x2b8 [ 59.829230][ T4079] el0_svc_common+0x138/0x258 [ 59.830400][ T4079] do_el0_svc+0x58/0x14c [ 59.831516][ T4079] el0_svc+0x7c/0x1f0 [ 59.832555][ T4079] el0t_64_sync_handler+0x84/0xe4 [ 59.833836][ T4079] el0t_64_sync+0x1a0/0x1a4 [ 59.835029][ T4079] [ 59.835029][ T4079] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 59.836943][ T4079] __mutex_lock_common+0x194/0x2154 [ 59.838319][ T4079] mutex_lock_nested+0xa4/0xf8 [ 59.839575][ T4079] vhci_send_frame+0x8c/0x10c [ 59.840867][ T4079] hci_send_frame+0x194/0x2f0 [ 59.842139][ T4079] hci_tx_work+0x9ac/0x16cc [ 59.843325][ T4079] process_one_work+0x790/0x11b8 [ 59.844715][ T4079] worker_thread+0x910/0x1034 [ 59.845952][ T4079] kthread+0x37c/0x45c [ 59.847053][ T4079] ret_from_fork+0x10/0x20 [ 59.848289][ T4079] [ 59.848289][ T4079] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 59.850631][ T4079] __flush_work+0xf8/0x1c0 [ 59.851846][ T4079] flush_work+0x24/0x38 [ 59.853015][ T4079] hci_dev_do_close+0x16c/0x1060 [ 59.854340][ T4079] hci_unregister_dev+0x248/0x4d4 [ 59.855639][ T4079] vhci_release+0x74/0xc4 [ 59.856847][ T4079] __fput+0x1c4/0x800 [ 59.857935][ T4079] ____fput+0x20/0x30 [ 59.859037][ T4079] task_work_run+0x130/0x1e4 [ 59.860231][ T4079] do_exit+0x670/0x20bc [ 59.861407][ T4079] do_group_exit+0x110/0x268 [ 59.862692][ T4079] get_signal+0x634/0x1550 [ 59.863903][ T4079] do_notify_resume+0x3d0/0x32b8 [ 59.865233][ T4079] el0_svc+0xfc/0x1f0 [ 59.866316][ T4079] el0t_64_sync_handler+0x84/0xe4 [ 59.867624][ T4079] el0t_64_sync+0x1a0/0x1a4 [ 59.868890][ T4079] [ 59.868890][ T4079] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 59.870747][ T4079] __mutex_lock_common+0x194/0x2154 [ 59.872196][ T4079] mutex_lock_nested+0xa4/0xf8 [ 59.873460][ T4079] bg_scan_update+0x9c/0x470 [ 59.874744][ T4079] process_one_work+0x790/0x11b8 [ 59.876114][ T4079] worker_thread+0x910/0x1034 [ 59.877538][ T4079] kthread+0x37c/0x45c [ 59.878771][ T4079] ret_from_fork+0x10/0x20 [ 59.880128][ T4079] [ 59.880128][ T4079] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 59.882833][ T4079] __lock_acquire+0x32d4/0x7638 [ 59.884253][ T4079] lock_acquire+0x240/0x77c [ 59.885605][ T4079] __flush_work+0xf8/0x1c0 [ 59.886955][ T4079] __cancel_work_timer+0x3ec/0x548 [ 59.888519][ T4079] cancel_work_sync+0x24/0x38 [ 59.889870][ T4079] hci_request_cancel_all+0xcc/0x2d0 [ 59.891461][ T4079] hci_dev_do_close+0x54/0x1060 [ 59.892803][ T4079] hci_rfkill_set_block+0xdc/0x1d0 [ 59.894464][ T4079] rfkill_set_block+0x18c/0x37c [ 59.895911][ T4079] rfkill_epo+0x8c/0x158 [ 59.897208][ T4079] rfkill_op_handler+0x170/0x288 [ 59.898568][ T4079] process_one_work+0x790/0x11b8 [ 59.899984][ T4079] worker_thread+0x910/0x1034 [ 59.901384][ T4079] kthread+0x37c/0x45c [ 59.902601][ T4079] ret_from_fork+0x10/0x20 [ 59.903906][ T4079] [ 59.903906][ T4079] other info that might help us debug this: [ 59.903906][ T4079] [ 59.906620][ T4079] Chain exists of: [ 59.906620][ T4079] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 59.906620][ T4079] [ 59.910788][ T4079] Possible unsafe locking scenario: [ 59.910788][ T4079] [ 59.912739][ T4079] CPU0 CPU1 [ 59.914142][ T4079] ---- ---- [ 59.915549][ T4079] lock(rfkill_global_mutex); [ 59.916781][ T4079] lock(&data->open_mutex); [ 59.918756][ T4079] lock(rfkill_global_mutex); [ 59.920721][ T4079] lock((work_completion)(&hdev->bg_scan_update)); [ 59.922438][ T4079] [ 59.922438][ T4079] *** DEADLOCK *** [ 59.922438][ T4079] [ 59.924546][ T4079] 3 locks held by kworker/0:8/4079: [ 59.925864][ T4079] #0: ffff0000c0020938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x66c/0x11b8 [ 59.928648][ T4079] #1: ffff800020027c00 ((rfkill_op_work).work){+.+.}-{0:0}, at: process_one_work+0x6ac/0x11b8 [ 59.931345][ T4079] #2: ffff800016f39608 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_epo+0x58/0x158 [ 59.934015][ T4079] [ 59.934015][ T4079] stack backtrace: [ 59.935654][ T4079] CPU: 0 PID: 4079 Comm: kworker/0:8 Not tainted 5.15.178-syzkaller #0 [ 59.937854][ T4079] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 [ 59.940569][ T4079] Workqueue: events rfkill_op_handler [ 59.942011][ T4079] Call trace: [ 59.942849][ T4079] dump_backtrace+0x0/0x530 [ 59.944079][ T4079] show_stack+0x2c/0x3c [ 59.945181][ T4079] dump_stack_lvl+0x108/0x170 [ 59.946508][ T4079] dump_stack+0x1c/0x58 [ 59.947644][ T4079] print_circular_bug+0x150/0x1b8 [ 59.948913][ T4079] check_noncircular+0x2cc/0x378 [ 59.950228][ T4079] __lock_acquire+0x32d4/0x7638 [ 59.951475][ T4079] lock_acquire+0x240/0x77c [ 59.952698][ T4079] __flush_work+0xf8/0x1c0 [ 59.953833][ T4079] __cancel_work_timer+0x3ec/0x548 [ 59.955212][ T4079] cancel_work_sync+0x24/0x38 [ 59.956474][ T4079] hci_request_cancel_all+0xcc/0x2d0 [ 59.957940][ T4079] hci_dev_do_close+0x54/0x1060 [ 59.959206][ T4079] hci_rfkill_set_block+0xdc/0x1d0 [ 59.960552][ T4079] rfkill_set_block+0x18c/0x37c [ 59.961882][ T4079] rfkill_epo+0x8c/0x158 [ 59.962940][ T4079] rfkill_op_handler+0x170/0x288 [ 59.964149][ T4079] process_one_work+0x790/0x11b8 [ 59.965524][ T4079] worker_thread+0x910/0x1034 [ 59.966798][ T4079] kthread+0x37c/0x45c [ 59.967842][ T4079] ret_from_fork+0x10/0x20