Warning: Permanently added '10.128.0.235' (ED25519) to the list of known hosts. 1970/01/01 00:00:44 ignoring optional flag "sandboxArg"="0" 1970/01/01 00:00:44 parsed 1 programs syzkaller login: [ 47.644397][ T4023] cgroup: Unknown subsys name 'net' [ 47.885489][ T4023] cgroup: Unknown subsys name 'rlimit' [ 48.266867][ T4023] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS [ 54.297637][ T4044] chnl_net:caif_netlink_parms(): no params data found [ 54.350905][ T4044] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.352472][ T4044] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.354581][ T4044] device bridge_slave_0 entered promiscuous mode [ 54.358905][ T4044] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.360727][ T4044] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.363050][ T4044] device bridge_slave_1 entered promiscuous mode [ 54.380199][ T4044] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 54.386661][ T4044] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 54.402713][ T4044] team0: Port device team_slave_0 added [ 54.405657][ T4044] team0: Port device team_slave_1 added [ 54.419986][ T4044] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 54.421556][ T4044] 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. [ 54.426737][ T4044] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 54.431249][ T4044] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 54.432679][ T4044] 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. [ 54.437976][ T4044] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 54.501351][ T4044] device hsr_slave_0 entered promiscuous mode [ 54.549464][ T4044] device hsr_slave_1 entered promiscuous mode [ 54.677463][ T4044] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 54.735431][ T4044] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 54.784057][ T4044] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 54.821551][ T4044] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 54.901265][ T4044] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.903044][ T4044] bridge0: port 2(bridge_slave_1) entered forwarding state [ 54.905264][ T4044] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.906866][ T4044] bridge0: port 1(bridge_slave_0) entered forwarding state [ 54.978487][ T4044] 8021q: adding VLAN 0 to HW filter on device bond0 [ 54.986179][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 54.992952][ T136] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.997544][ T136] bridge0: port 2(bridge_slave_1) entered disabled state [ 55.002417][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 55.012112][ T4044] 8021q: adding VLAN 0 to HW filter on device team0 [ 55.022760][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 55.025419][ T136] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.026930][ T136] bridge0: port 1(bridge_slave_0) entered forwarding state [ 55.028856][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 55.031679][ T136] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.033302][ T136] bridge0: port 2(bridge_slave_1) entered forwarding state [ 55.046373][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 55.048778][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 55.062675][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 55.065188][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 55.071571][ T397] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 55.076117][ T4044] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 55.149835][ T397] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 55.151699][ T397] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 55.158407][ T4044] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 55.173644][ T397] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 55.192657][ T397] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 55.195502][ T397] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 55.197477][ T397] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 55.205978][ T4044] device veth0_vlan entered promiscuous mode [ 55.212846][ T4044] device veth1_vlan entered promiscuous mode [ 55.231229][ T397] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 55.234318][ T397] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 55.236486][ T397] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 55.244926][ T4044] device veth0_macvtap entered promiscuous mode [ 55.249748][ T4044] device veth1_macvtap entered promiscuous mode [ 55.264700][ T4044] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 55.266387][ T397] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 55.270902][ T397] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 55.277826][ T4044] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 55.280715][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 55.282927][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 55.287675][ T4044] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 55.290250][ T4044] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 55.292227][ T4044] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 55.293971][ T4044] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 56.158013][ T136] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 56.159897][ T136] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 56.162536][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 56.455502][ T397] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 56.457944][ T397] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 56.466120][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 56.484960][ T291] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 1970/01/01 00:00:56 executed programs: 0 [ 57.170656][ T4104] chnl_net:caif_netlink_parms(): no params data found [ 57.208896][ T4104] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.211127][ T4104] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.213218][ T4104] device bridge_slave_0 entered promiscuous mode [ 57.216643][ T4104] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.218317][ T4104] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.222088][ T4104] device bridge_slave_1 entered promiscuous mode [ 57.236802][ T4104] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.241772][ T4104] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.257295][ T4104] team0: Port device team_slave_0 added [ 57.260701][ T4104] team0: Port device team_slave_1 added [ 57.274826][ T4104] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 57.276210][ T4104] 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. [ 57.281970][ T4104] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 57.286793][ T4104] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 57.288368][ T4104] 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. [ 57.294101][ T4104] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 57.351242][ T4104] device hsr_slave_0 entered promiscuous mode [ 57.410305][ T4104] device hsr_slave_1 entered promiscuous mode [ 57.449357][ T4104] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 57.451193][ T4104] Cannot create hsr debugfs directory [ 58.886982][ T291] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 59.179866][ T21] Bluetooth: hci0: command 0x0409 tx timeout [ 60.515782][ T291] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 60.588873][ T291] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 61.249465][ T25] Bluetooth: hci0: command 0x041b tx timeout [ 61.457838][ T4104] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 61.511307][ T4104] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 61.542289][ T4104] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 61.616151][ T4104] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 61.731443][ T4104] 8021q: adding VLAN 0 to HW filter on device bond0 [ 61.740837][ T397] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 61.742974][ T397] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 61.747525][ T4104] 8021q: adding VLAN 0 to HW filter on device team0 [ 61.752219][ T397] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 61.754822][ T397] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 61.757716][ T397] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.759470][ T397] bridge0: port 1(bridge_slave_0) entered forwarding state [ 61.762900][ T397] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 61.767487][ T397] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 61.771144][ T397] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 61.773361][ T397] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.774987][ T397] bridge0: port 2(bridge_slave_1) entered forwarding state [ 61.782674][ T397] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 61.787806][ T397] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 61.799483][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 61.802766][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 61.805042][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 61.807395][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 61.811944][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 61.814179][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 61.817507][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 61.823384][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 61.825816][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 61.831141][ T4104] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 61.924022][ T397] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 61.925683][ T397] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 61.932138][ T4104] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 61.944998][ T397] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 61.947281][ T397] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 61.961398][ T1703] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 61.963587][ T1703] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 61.966317][ T1703] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 61.968220][ T1703] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 61.971860][ T4104] device veth0_vlan entered promiscuous mode [ 61.977942][ T4104] device veth1_vlan entered promiscuous mode [ 61.993620][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 61.995837][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 61.997892][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 62.001957][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 62.007227][ T4104] device veth0_macvtap entered promiscuous mode [ 62.011590][ T4104] device veth1_macvtap entered promiscuous mode [ 62.023177][ T4104] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 62.025508][ T4104] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 62.028652][ T4104] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 62.031074][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 62.033294][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 62.035384][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 62.037764][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 62.043285][ T4104] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 62.045519][ T4104] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 62.048760][ T4104] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 62.051324][ T1703] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 62.054131][ T1703] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 62.058547][ T4104] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 62.060524][ T4104] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 62.062375][ T4104] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 62.064234][ T4104] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 62.105356][ T1703] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 62.110321][ T1703] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 62.116689][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 62.156643][ T148] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 62.158533][ T148] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 62.162809][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 62.396381][ T4157] [ 62.396927][ T4157] ====================================================== [ 62.398378][ T4157] WARNING: possible circular locking dependency detected [ 62.399818][ T4157] 5.15.173-syzkaller #0 Not tainted [ 62.400831][ T4157] ------------------------------------------------------ [ 62.402441][ T4157] syz.0.15/4157 is trying to acquire lock: [ 62.403599][ T4157] ffff0000d5548c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xd0/0x1c0 [ 62.406038][ T4157] [ 62.406038][ T4157] but task is already holding lock: [ 62.407506][ T4157] ffff800016f25fe8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x250/0x750 [ 62.409543][ T4157] [ 62.409543][ T4157] which lock already depends on the new lock. [ 62.409543][ T4157] [ 62.411852][ T4157] [ 62.411852][ T4157] the existing dependency chain (in reverse order) is: [ 62.413851][ T4157] [ 62.413851][ T4157] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 62.415506][ T4157] __mutex_lock_common+0x194/0x2154 [ 62.416778][ T4157] mutex_lock_nested+0xa4/0xf8 [ 62.417955][ T4157] rfkill_register+0x44/0x7a4 [ 62.418923][ T4157] hci_register_dev+0x3e0/0x880 [ 62.420030][ T4157] vhci_create_device+0x2c4/0x568 [ 62.421142][ T4157] vhci_write+0x318/0x3b8 [ 62.422200][ T4157] vfs_write+0x884/0xb44 [ 62.423172][ T4157] ksys_write+0x15c/0x26c [ 62.424104][ T4157] __arm64_sys_write+0x7c/0x90 [ 62.425276][ T4157] invoke_syscall+0x98/0x2b8 [ 62.426296][ T4157] el0_svc_common+0x138/0x258 [ 62.427370][ T4157] do_el0_svc+0x58/0x14c [ 62.428335][ T4157] el0_svc+0x7c/0x1f0 [ 62.429173][ T4157] el0t_64_sync_handler+0x84/0xe4 [ 62.430268][ T4157] el0t_64_sync+0x1a0/0x1a4 [ 62.431314][ T4157] [ 62.431314][ T4157] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 62.432891][ T4157] __mutex_lock_common+0x194/0x2154 [ 62.434003][ T4157] mutex_lock_nested+0xa4/0xf8 [ 62.435005][ T4157] vhci_send_frame+0x8c/0x10c [ 62.436053][ T4157] hci_send_frame+0x194/0x2f0 [ 62.437126][ T4157] hci_tx_work+0x9ac/0x16cc [ 62.438162][ T4157] process_one_work+0x790/0x11b8 [ 62.439257][ T4157] worker_thread+0x910/0x1034 [ 62.440343][ T4157] kthread+0x37c/0x45c [ 62.441388][ T4157] ret_from_fork+0x10/0x20 [ 62.442419][ T4157] [ 62.442419][ T4157] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 62.444475][ T4157] __flush_work+0xf8/0x1c0 [ 62.445492][ T4157] flush_work+0x24/0x38 [ 62.446593][ T4157] hci_dev_do_close+0x16c/0x1060 [ 62.447827][ T4157] hci_unregister_dev+0x248/0x4d4 [ 62.448995][ T4157] vhci_release+0x74/0xc4 [ 62.450001][ T4157] __fput+0x1c4/0x800 [ 62.450929][ T4157] ____fput+0x20/0x30 [ 62.451909][ T4157] task_work_run+0x130/0x1e4 [ 62.452951][ T4157] do_exit+0x670/0x20bc [ 62.453923][ T4157] do_group_exit+0x110/0x268 [ 62.455012][ T4157] get_signal+0x634/0x1550 [ 62.456130][ T4157] do_notify_resume+0x3d0/0x32b8 [ 62.457304][ T4157] el0_svc+0xfc/0x1f0 [ 62.458194][ T4157] el0t_64_sync_handler+0x84/0xe4 [ 62.459472][ T4157] el0t_64_sync+0x1a0/0x1a4 [ 62.460542][ T4157] [ 62.460542][ T4157] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 62.462122][ T4157] __mutex_lock_common+0x194/0x2154 [ 62.463245][ T4157] mutex_lock_nested+0xa4/0xf8 [ 62.464307][ T4157] bg_scan_update+0x9c/0x470 [ 62.465365][ T4157] process_one_work+0x790/0x11b8 [ 62.466406][ T4157] worker_thread+0x910/0x1034 [ 62.467544][ T4157] kthread+0x37c/0x45c [ 62.468360][ T4157] ret_from_fork+0x10/0x20 [ 62.469323][ T4157] [ 62.469323][ T4157] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 62.471456][ T4157] __lock_acquire+0x32d4/0x7638 [ 62.472508][ T4157] lock_acquire+0x240/0x77c [ 62.473481][ T4157] __flush_work+0xf8/0x1c0 [ 62.474424][ T4157] __cancel_work_timer+0x3ec/0x548 [ 62.475669][ T4157] cancel_work_sync+0x24/0x38 [ 62.476839][ T4157] hci_request_cancel_all+0xcc/0x2d0 [ 62.478033][ T4157] hci_dev_do_close+0x54/0x1060 [ 62.479273][ T4157] hci_rfkill_set_block+0xdc/0x1d0 [ 62.480425][ T4157] rfkill_set_block+0x18c/0x37c [ 62.481605][ T4157] rfkill_fop_write+0x594/0x750 [ 62.482780][ T4157] vfs_write+0x280/0xb44 [ 62.483760][ T4157] ksys_write+0x15c/0x26c [ 62.484770][ T4157] __arm64_sys_write+0x7c/0x90 [ 62.485760][ T4157] invoke_syscall+0x98/0x2b8 [ 62.486792][ T4157] el0_svc_common+0x138/0x258 [ 62.487921][ T4157] do_el0_svc+0x58/0x14c [ 62.488861][ T4157] el0_svc+0x7c/0x1f0 [ 62.489801][ T4157] el0t_64_sync_handler+0x84/0xe4 [ 62.490962][ T4157] el0t_64_sync+0x1a0/0x1a4 [ 62.492004][ T4157] [ 62.492004][ T4157] other info that might help us debug this: [ 62.492004][ T4157] [ 62.494034][ T4157] Chain exists of: [ 62.494034][ T4157] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 62.494034][ T4157] [ 62.497257][ T4157] Possible unsafe locking scenario: [ 62.497257][ T4157] [ 62.498839][ T4157] CPU0 CPU1 [ 62.499923][ T4157] ---- ---- [ 62.501029][ T4157] lock(rfkill_global_mutex); [ 62.502109][ T4157] lock(&data->open_mutex); [ 62.503697][ T4157] lock(rfkill_global_mutex); [ 62.505330][ T4157] lock((work_completion)(&hdev->bg_scan_update)); [ 62.506763][ T4157] [ 62.506763][ T4157] *** DEADLOCK *** [ 62.506763][ T4157] [ 62.508535][ T4157] 1 lock held by syz.0.15/4157: [ 62.509582][ T4157] #0: ffff800016f25fe8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x250/0x750 [ 62.511533][ T4157] [ 62.511533][ T4157] stack backtrace: [ 62.512772][ T4157] CPU: 1 PID: 4157 Comm: syz.0.15 Not tainted 5.15.173-syzkaller #0 [ 62.514415][ T4157] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 62.516510][ T4157] Call trace: [ 62.517189][ T4157] dump_backtrace+0x0/0x530 [ 62.518226][ T4157] show_stack+0x2c/0x3c [ 62.519117][ T4157] dump_stack_lvl+0x108/0x170 [ 62.520010][ T4157] dump_stack+0x1c/0x58 [ 62.520802][ T4157] print_circular_bug+0x150/0x1b8 [ 62.521858][ T4157] check_noncircular+0x2cc/0x378 [ 62.522760][ T4157] __lock_acquire+0x32d4/0x7638 [ 62.523869][ T4157] lock_acquire+0x240/0x77c [ 62.524803][ T4157] __flush_work+0xf8/0x1c0 [ 62.525659][ T4157] __cancel_work_timer+0x3ec/0x548 [ 62.526772][ T4157] cancel_work_sync+0x24/0x38 [ 62.527720][ T4157] hci_request_cancel_all+0xcc/0x2d0 [ 62.528890][ T4157] hci_dev_do_close+0x54/0x1060 [ 62.530072][ T4157] hci_rfkill_set_block+0xdc/0x1d0 [ 62.531209][ T4157] rfkill_set_block+0x18c/0x37c [ 62.532383][ T4157] rfkill_fop_write+0x594/0x750 [ 62.533399][ T4157] vfs_write+0x280/0xb44 [ 62.534417][ T4157] ksys_write+0x15c/0x26c [ 62.535484][ T4157] __arm64_sys_write+0x7c/0x90 [ 62.536515][ T4157] invoke_syscall+0x98/0x2b8 [ 62.537660][ T4157] el0_svc_common+0x138/0x258 [ 62.538702][ T4157] do_el0_svc+0x58/0x14c [ 62.539812][ T4157] el0_svc+0x7c/0x1f0 [ 62.540587][ T4157] el0t_64_sync_handler+0x84/0xe4 [ 62.541657][ T4157] el0t_64_sync+0x1a0/0x1a4