Warning: Permanently added '10.128.0.233' (ED25519) to the list of known hosts. 2025/08/09 02:51:00 ignoring optional flag "sandboxArg"="0" 2025/08/09 02:51:01 parsed 1 programs [ 71.314285][ T4190] cgroup: Unknown subsys name 'net' [ 71.416111][ T4190] cgroup: Unknown subsys name 'rlimit' [ 72.928616][ T4190] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 74.667034][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.675193][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.690988][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 74.708380][ T1276] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.716500][ T1276] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.725129][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 75.817033][ T4236] chnl_net:caif_netlink_parms(): no params data found [ 75.887068][ T4236] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.896220][ T4236] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.904735][ T4236] device bridge_slave_0 entered promiscuous mode [ 75.915901][ T4236] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.923140][ T4236] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.932585][ T4236] device bridge_slave_1 entered promiscuous mode [ 75.966474][ T4236] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 75.981371][ T4236] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 76.010917][ T4236] team0: Port device team_slave_0 added [ 76.019631][ T4236] team0: Port device team_slave_1 added [ 76.044602][ T4236] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 76.051809][ T4236] 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. [ 76.077914][ T4236] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 76.091004][ T4236] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 76.097968][ T4236] 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. [ 76.123927][ T4236] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 76.163791][ T4236] device hsr_slave_0 entered promiscuous mode [ 76.170966][ T4236] device hsr_slave_1 entered promiscuous mode [ 76.298162][ T4236] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 76.309772][ T4236] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 76.319514][ T4236] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 76.328609][ T4236] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 76.379941][ T4236] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.387214][ T4236] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.395662][ T4236] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.403045][ T4236] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.499856][ T4236] 8021q: adding VLAN 0 to HW filter on device bond0 [ 76.513985][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 76.529078][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.543678][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.558605][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 76.571743][ T4236] 8021q: adding VLAN 0 to HW filter on device team0 [ 76.582744][ T3084] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 76.592055][ T3084] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.599284][ T3084] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.610881][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 76.621066][ T1276] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.628167][ T1276] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.650101][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 76.658759][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 76.677785][ T4236] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 76.688246][ T4236] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 76.701600][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 76.710349][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 76.719823][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 76.728776][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 76.818160][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 76.826853][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 76.855008][ T4236] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 76.875120][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 76.885274][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 76.921217][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 76.929918][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 76.938363][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 76.946689][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 76.957977][ T4236] device veth0_vlan entered promiscuous mode [ 76.987072][ T4236] device veth1_vlan entered promiscuous mode [ 77.006582][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 77.016499][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 77.024856][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 77.033879][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 77.061322][ T4236] device veth0_macvtap entered promiscuous mode [ 77.072236][ T4236] device veth1_macvtap entered promiscuous mode [ 77.087047][ T4236] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 77.095539][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 77.106827][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 77.115025][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 77.123746][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 77.137252][ T4236] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 77.145237][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 77.154546][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 77.179922][ T4236] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.189077][ T4236] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.199773][ T4236] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.208529][ T4236] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.324969][ T4236] syz-executor (4236) used greatest stack depth: 21184 bytes left 2025/08/09 02:51:11 executed programs: 0 [ 79.056026][ T4293] chnl_net:caif_netlink_parms(): no params data found [ 79.119415][ T4293] bridge0: port 1(bridge_slave_0) entered blocking state [ 79.126821][ T4293] bridge0: port 1(bridge_slave_0) entered disabled state [ 79.135789][ T4293] device bridge_slave_0 entered promiscuous mode [ 79.144759][ T4293] bridge0: port 2(bridge_slave_1) entered blocking state [ 79.152064][ T4293] bridge0: port 2(bridge_slave_1) entered disabled state [ 79.160257][ T4293] device bridge_slave_1 entered promiscuous mode [ 79.183852][ T4293] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 79.195562][ T4293] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 79.226126][ T4293] team0: Port device team_slave_0 added [ 79.234223][ T4293] team0: Port device team_slave_1 added [ 79.264098][ T4293] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 79.271498][ T4293] 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. [ 79.300495][ T4293] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 79.315474][ T4293] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 79.324012][ T4293] 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. [ 79.350534][ T4293] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 79.388773][ T4293] device hsr_slave_0 entered promiscuous mode [ 79.395797][ T4293] device hsr_slave_1 entered promiscuous mode [ 79.405322][ T4293] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 79.413929][ T4293] Cannot create hsr debugfs directory [ 79.448895][ T827] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 80.940405][ T2304] Bluetooth: hci0: command 0x0409 tx timeout [ 82.708573][ T827] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 82.765016][ T827] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 82.827151][ T827] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 83.075361][ T4324] Bluetooth: hci0: command 0x041b tx timeout [ 83.725985][ T4293] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 83.735940][ T4293] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 83.746208][ T4293] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 83.761126][ T4293] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 83.830526][ T4293] 8021q: adding VLAN 0 to HW filter on device bond0 [ 83.844178][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 83.852063][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 83.883888][ T4293] 8021q: adding VLAN 0 to HW filter on device team0 [ 83.894888][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 83.905784][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 83.915325][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 83.922475][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 83.932573][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 83.944671][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 83.953821][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 83.964010][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 83.971143][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 83.982891][ T3084] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 84.014721][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 84.026335][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 84.035944][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 84.045065][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 84.057202][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 84.066635][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 84.096651][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 84.106190][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 84.116805][ T4293] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 84.128420][ T4293] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 84.137188][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 84.146576][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 84.247874][ T827] device hsr_slave_0 left promiscuous mode [ 84.255454][ T827] device hsr_slave_1 left promiscuous mode [ 84.262734][ T827] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 84.270627][ T827] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 84.278975][ T827] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 84.286531][ T827] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 84.294343][ T827] device bridge_slave_1 left promiscuous mode [ 84.301529][ T827] bridge0: port 2(bridge_slave_1) entered disabled state [ 84.316047][ T827] device bridge_slave_0 left promiscuous mode [ 84.323498][ T827] bridge0: port 1(bridge_slave_0) entered disabled state [ 84.342117][ T827] device veth1_macvtap left promiscuous mode [ 84.348408][ T827] device veth0_macvtap left promiscuous mode [ 84.354934][ T827] device veth1_vlan left promiscuous mode [ 84.361488][ T827] device veth0_vlan left promiscuous mode [ 84.523661][ T827] team0 (unregistering): Port device team_slave_1 removed [ 84.536209][ T827] team0 (unregistering): Port device team_slave_0 removed [ 84.552529][ T827] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 84.567276][ T827] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 84.626139][ T827] bond0 (unregistering): Released all slaves [ 84.688988][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 84.696618][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 84.712643][ T4293] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 84.732489][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 84.741548][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 84.758765][ T4293] device veth0_vlan entered promiscuous mode [ 84.766737][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 84.775239][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 84.784264][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 84.792916][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 84.805321][ T4293] device veth1_vlan entered promiscuous mode [ 84.836985][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 84.845166][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 84.853833][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 84.863364][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 84.873973][ T4293] device veth0_macvtap entered promiscuous mode [ 84.883274][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 84.899183][ T4293] device veth1_macvtap entered promiscuous mode [ 84.916307][ T4293] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 84.923990][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 84.933145][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 84.945438][ T4293] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 84.953418][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 84.962498][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 84.973189][ T4293] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 84.982796][ T4293] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 84.992259][ T4293] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 85.001504][ T4293] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 85.081837][ T3084] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 85.095505][ T1276] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 85.103887][ T1108] Bluetooth: hci0: command 0x040f tx timeout [ 85.104083][ T3084] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 85.111911][ T1276] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 85.121805][ T3084] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 85.134367][ T3084] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 85.196240][ T4358] [ 85.198629][ T4358] ====================================================== [ 85.205663][ T4358] WARNING: possible circular locking dependency detected [ 85.212813][ T4358] 5.15.189-syzkaller #0 Not tainted [ 85.218189][ T4358] ------------------------------------------------------ [ 85.225212][ T4358] syz.0.17/4358 is trying to acquire lock: [ 85.231026][ T4358] ffff88807874cc28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xc1/0x1b0 [ 85.242110][ T4358] [ 85.242110][ T4358] but task is already holding lock: [ 85.249484][ T4358] ffffffff8d4be228 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 85.259161][ T4358] [ 85.259161][ T4358] which lock already depends on the new lock. [ 85.259161][ T4358] [ 85.269574][ T4358] [ 85.269574][ T4358] the existing dependency chain (in reverse order) is: [ 85.278624][ T4358] [ 85.278624][ T4358] -> #4 (rfkill_global_mutex){+.+.}-{3:3}: [ 85.286633][ T4358] __mutex_lock_common+0x1eb/0x2390 [ 85.292466][ T4358] mutex_lock_nested+0x17/0x20 [ 85.297765][ T4358] rfkill_register+0x33/0x8a0 [ 85.303002][ T4358] hci_register_dev+0x452/0x970 [ 85.308627][ T4358] vhci_create_device+0x32c/0x5c0 [ 85.314192][ T4358] vhci_write+0x391/0x450 [ 85.319062][ T4358] vfs_write+0x712/0xd00 [ 85.323937][ T4358] ksys_write+0x14d/0x250 [ 85.328808][ T4358] do_syscall_64+0x4c/0xa0 [ 85.333776][ T4358] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 85.340209][ T4358] [ 85.340209][ T4358] -> #3 (&data->open_mutex){+.+.}-{3:3}: [ 85.348051][ T4358] __mutex_lock_common+0x1eb/0x2390 [ 85.353797][ T4358] mutex_lock_nested+0x17/0x20 [ 85.359112][ T4358] vhci_send_frame+0x88/0x100 [ 85.364327][ T4358] hci_send_frame+0x1a9/0x2e0 [ 85.369573][ T4358] hci_tx_work+0x9f9/0x1710 [ 85.374653][ T4358] process_one_work+0x863/0x1000 [ 85.380135][ T4358] worker_thread+0xaa8/0x12a0 [ 85.385350][ T4358] kthread+0x436/0x520 [ 85.389951][ T4358] ret_from_fork+0x1f/0x30 [ 85.394912][ T4358] [ 85.394912][ T4358] -> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}: [ 85.404147][ T4358] __flush_work+0xdd/0x1b0 [ 85.409111][ T4358] hci_dev_do_close+0x1e7/0x1030 [ 85.414645][ T4358] hci_unregister_dev+0x2d7/0x580 [ 85.420210][ T4358] vhci_release+0x73/0xc0 [ 85.425082][ T4358] __fput+0x234/0x930 [ 85.429596][ T4358] task_work_run+0x125/0x1a0 [ 85.434719][ T4358] do_exit+0x61e/0x20a0 [ 85.439430][ T4358] do_group_exit+0x12e/0x300 [ 85.444559][ T4358] get_signal+0x6ca/0x12c0 [ 85.449614][ T4358] arch_do_signal_or_restart+0xc1/0x1300 [ 85.455922][ T4358] exit_to_user_mode_loop+0x9e/0x130 [ 85.461869][ T4358] exit_to_user_mode_prepare+0xb1/0x140 [ 85.468238][ T4358] syscall_exit_to_user_mode+0x16/0x40 [ 85.474249][ T4358] do_syscall_64+0x58/0xa0 [ 85.479228][ T4358] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 85.485671][ T4358] [ 85.485671][ T4358] -> #1 (&hdev->req_lock){+.+.}-{3:3}: [ 85.493333][ T4358] __mutex_lock_common+0x1eb/0x2390 [ 85.499155][ T4358] mutex_lock_nested+0x17/0x20 [ 85.504456][ T4358] bg_scan_update+0x44/0x3b0 [ 85.509589][ T4358] process_one_work+0x863/0x1000 [ 85.515063][ T4358] worker_thread+0xaa8/0x12a0 [ 85.520283][ T4358] kthread+0x436/0x520 [ 85.524893][ T4358] ret_from_fork+0x1f/0x30 [ 85.529843][ T4358] [ 85.529843][ T4358] -> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}: [ 85.539680][ T4358] __lock_acquire+0x2c33/0x7c60 [ 85.545080][ T4358] lock_acquire+0x197/0x3f0 [ 85.550125][ T4358] __flush_work+0xdd/0x1b0 [ 85.555086][ T4358] __cancel_work_timer+0x3ac/0x520 [ 85.560744][ T4358] hci_request_cancel_all+0xcc/0x300 [ 85.566573][ T4358] hci_dev_do_close+0x4e/0x1030 [ 85.571968][ T4358] hci_rfkill_set_block+0x10a/0x190 [ 85.577772][ T4358] rfkill_set_block+0x1c6/0x420 [ 85.583166][ T4358] rfkill_fop_write+0x458/0x560 [ 85.588557][ T4358] vfs_write+0x300/0xd00 [ 85.593418][ T4358] ksys_write+0x14d/0x250 [ 85.598280][ T4358] do_syscall_64+0x4c/0xa0 [ 85.603337][ T4358] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 85.609771][ T4358] [ 85.609771][ T4358] other info that might help us debug this: [ 85.609771][ T4358] [ 85.619990][ T4358] Chain exists of: [ 85.619990][ T4358] (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex [ 85.619990][ T4358] [ 85.635846][ T4358] Possible unsafe locking scenario: [ 85.635846][ T4358] [ 85.643306][ T4358] CPU0 CPU1 [ 85.648693][ T4358] ---- ---- [ 85.654057][ T4358] lock(rfkill_global_mutex); [ 85.658822][ T4358] lock(&data->open_mutex); [ 85.665925][ T4358] lock(rfkill_global_mutex); [ 85.673205][ T4358] lock((work_completion)(&hdev->bg_scan_update)); [ 85.679806][ T4358] [ 85.679806][ T4358] *** DEADLOCK *** [ 85.679806][ T4358] [ 85.688170][ T4358] 1 lock held by syz.0.17/4358: [ 85.693035][ T4358] #0: ffffffff8d4be228 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x19e/0x560 [ 85.703134][ T4358] [ 85.703134][ T4358] stack backtrace: [ 85.709038][ T4358] CPU: 0 PID: 4358 Comm: syz.0.17 Not tainted 5.15.189-syzkaller #0 [ 85.717020][ T4358] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 85.727097][ T4358] Call Trace: [ 85.730379][ T4358] [ 85.733317][ T4358] dump_stack_lvl+0x168/0x230 [ 85.738002][ T4358] ? load_image+0x3b0/0x3b0 [ 85.742525][ T4358] ? show_regs_print_info+0x20/0x20 [ 85.747859][ T4358] ? print_circular_bug+0x12b/0x1a0 [ 85.753078][ T4358] check_noncircular+0x274/0x310 [ 85.758113][ T4358] ? add_chain_block+0x940/0x940 [ 85.763057][ T4358] ? lockdep_lock+0xdc/0x1e0 [ 85.767689][ T4358] ? __lock_acquire+0x12d9/0x7c60 [ 85.772744][ T4358] ? lockdep_lock+0x1e0/0x1e0 [ 85.777429][ T4358] ? mark_lock+0x94/0x320 [ 85.781773][ T4358] __lock_acquire+0x2c33/0x7c60 [ 85.786650][ T4358] ? verify_lock_unused+0x140/0x140 [ 85.791876][ T4358] ? verify_lock_unused+0x140/0x140 [ 85.797094][ T4358] lock_acquire+0x197/0x3f0 [ 85.801600][ T4358] ? __flush_work+0xc1/0x1b0 [ 85.806225][ T4358] ? __lock_acquire+0x7c60/0x7c60 [ 85.811305][ T4358] ? read_lock_is_recursive+0x10/0x10 [ 85.816750][ T4358] ? start_flush_work+0x776/0x820 [ 85.821796][ T4358] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 85.827757][ T4358] ? _raw_spin_unlock+0x40/0x40 [ 85.832617][ T4358] __flush_work+0xdd/0x1b0 [ 85.837050][ T4358] ? __flush_work+0xc1/0x1b0 [ 85.841649][ T4358] ? flush_work+0x20/0x20 [ 85.846045][ T4358] ? try_to_grab_pending+0xf3/0x7e0 [ 85.851244][ T4358] ? lockdep_hardirqs_off+0x70/0x100 [ 85.856741][ T4358] ? mark_lock+0x94/0x320 [ 85.861084][ T4358] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 85.867081][ T4358] ? lock_chain_count+0x20/0x20 [ 85.871942][ T4358] ? mark_lock+0x94/0x320 [ 85.876279][ T4358] ? __cancel_work_timer+0x331/0x520 [ 85.881567][ T4358] __cancel_work_timer+0x3ac/0x520 [ 85.886685][ T4358] ? cancel_work_sync+0x20/0x20 [ 85.891536][ T4358] ? __cancel_work+0x1f4/0x2d0 [ 85.896481][ T4358] ? lockdep_hardirqs_on+0x94/0x140 [ 85.901768][ T4358] ? __cancel_work+0x26f/0x2d0 [ 85.906549][ T4358] ? cancel_work+0x20/0x20 [ 85.910972][ T4358] ? lock_chain_count+0x20/0x20 [ 85.915828][ T4358] hci_request_cancel_all+0xcc/0x300 [ 85.921289][ T4358] hci_dev_do_close+0x4e/0x1030 [ 85.926139][ T4358] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 85.932050][ T4358] ? _raw_spin_unlock+0x40/0x40 [ 85.937332][ T4358] hci_rfkill_set_block+0x10a/0x190 [ 85.942708][ T4358] ? rcu_lock_release+0x20/0x20 [ 85.947562][ T4358] rfkill_set_block+0x1c6/0x420 [ 85.952531][ T4358] rfkill_fop_write+0x458/0x560 [ 85.957388][ T4358] ? verify_lock_unused+0x140/0x140 [ 85.962588][ T4358] ? rfkill_fop_read+0x4b0/0x4b0 [ 85.967648][ T4358] ? common_file_perm+0x150/0x1c0 [ 85.972669][ T4358] ? fsnotify_perm+0x5d/0x560 [ 85.977515][ T4358] ? security_file_permission+0x75/0xa0 [ 85.983059][ T4358] ? rfkill_fop_read+0x4b0/0x4b0 [ 85.988003][ T4358] vfs_write+0x300/0xd00 [ 85.992273][ T4358] ? file_end_write+0x250/0x250 [ 85.997138][ T4358] ? __context_tracking_exit+0x4c/0x80 [ 86.002614][ T4358] ? __lock_acquire+0x7c60/0x7c60 [ 86.007661][ T4358] ? __fdget_pos+0x1e2/0x370 [ 86.012281][ T4358] ksys_write+0x14d/0x250 [ 86.016615][ T4358] ? __ia32_sys_read+0x80/0x80 [ 86.021411][ T4358] ? lockdep_hardirqs_on+0x94/0x140 [ 86.026627][ T4358] do_syscall_64+0x4c/0xa0 [ 86.031049][ T4358] ? clear_bhb_loop+0x30/0x80 [ 86.035765][ T4358] ? clear_bhb_loop+0x30/0x80 [ 86.040468][ T4358] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 86.046385][ T4358] RIP: 0033:0x7f6906ac1be9 [ 86.050832][ T4358] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 86.070619][ T4358] RSP: 002b:00007ffdb6517768 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 86.079031][ T4358] RAX: ffffffffffffffda RBX: 00007f6906ce8fa0 RCX: 00007f6906ac1be9 [ 86.087002][ T4358] RDX: 0000000000000008 RSI: 0000200000000300 RDI: 0000000000000003 [ 86.094996][ T4358] RBP: 00007f6906b44e19 R08: 0000000000000000 R09: 0000000000000000 [ 86.103583][ T4358] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 86.111585][ T4358] R13: 00007f6906ce8fa0 R14: 00007f6906ce8fa0 R15: 0000000000000003 [ 86.119770][ T4358]