possible deadlock in mgmt_index_removed ============================================ WARNING: possible recursive locking detected syzkaller #0 Not tainted -------------------------------------------- syz-executor/5851 is trying to acquire lock: ffff88807985c0b8 (&hdev->lock){+.+.}-{4:4}, at: mgmt_index_removed+0x10b/0x320 net/bluetooth/mgmt.c:9477 but task is already holding lock: ffff88807985c0b8 (&hdev->lock){+.+.}-{4:4}, at: hci_unregister_dev+0x2e7/0x510 net/bluetooth/hci_core.c:2720 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(&hdev->lock); lock(&hdev->lock); *** DEADLOCK *** May be due to missing lock nesting notation 1 lock held by syz-executor/5851: #0: ffff88807985c0b8 (&hdev->lock){+.+.}-{4:4}, at: hci_unregister_dev+0x2e7/0x510 net/bluetooth/hci_core.c:2720 stack backtrace: CPU: 0 UID: 0 PID: 5851 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 print_deadlock_bug+0x28b/0x2a0 kernel/locking/lockdep.c:3041 check_deadlock kernel/locking/lockdep.c:3093 [inline] validate_chain+0x1a3f/0x2140 kernel/locking/lockdep.c:3895 __lock_acquire+0xab9/0xd20 kernel/locking/lockdep.c:5237 lock_acquire+0x120/0x360 kernel/locking/lockdep.c:5868 __mutex_lock_common kernel/locking/mutex.c:598 [inline] __mutex_lock+0x187/0x1350 kernel/locking/mutex.c:760 mgmt_index_removed+0x10b/0x320 net/bluetooth/mgmt.c:9477 hci_unregister_dev+0x2ef/0x510 net/bluetooth/hci_core.c:2721 vhci_release+0x152/0x1a0 drivers/bluetooth/hci_vhci.c:690 __fput+0x44c/0xa70 fs/file_table.c:468 task_work_run+0x1d4/0x260 kernel/task_work.c:227 exit_task_work include/linux/task_work.h:40 [inline] do_exit+0x6b5/0x2300 kernel/exit.c:966 do_group_exit+0x21c/0x2d0 kernel/exit.c:1107 get_signal+0x1285/0x1340 kernel/signal.c:3034 arch_do_signal_or_restart+0xa0/0x790 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop+0x72/0x130 kernel/entry/common.c:40 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline] do_syscall_64+0x2bd/0xfa0 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f01e85915e7 Code: Unable to access opcode bytes at 0x7f01e85915bd. RSP: 002b:00007ffd3b28dfa8 EFLAGS: 00000202 ORIG_RAX: 0000000000000029 RAX: 0000000000000003 RBX: 00007f01e87b1300 RCX: 00007f01e85915e7 RDX: 0000000000000006 RSI: 0000000000000001 RDI: 0000000000000002 RBP: 00007ffd3b28e6cc R08: 0000000000000000 R09: 00007ffd3b28e3d7 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000001 R13: 00007f01e87b1280 R14: 0000000000000000 R15: 00007ffd3b28e720 Warning: Permanently added '10.128.0.195' (ED25519) to the list of known hosts. 2025/11/16 08:20:24 parsed 1 programs [ 92.011552][ T5829] cgroup: Unknown subsys name 'net' [ 92.167199][ T5829] cgroup: Unknown subsys name 'cpuset' [ 92.176378][ T5829] cgroup: Unknown subsys name 'rlimit' [ 92.205526][ T983] cfg80211: failed to load regulatory.db Setting up swapspace version 1, size = 127995904 bytes [ 93.888286][ T5829] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 97.158584][ T5842] soft_limit_in_bytes is deprecated and will be removed. Please report your usecase to linux-mm@kvack.org if you depend on this functionality. [ 97.650463][ T5852] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 97.660052][ T5852] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 97.668250][ T5852] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 97.676965][ T5852] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 97.686106][ T5852] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 97.910411][ T5851] [ 97.912815][ T5851] ============================================ [ 97.919016][ T5851] WARNING: possible recursive locking detected [ 97.925188][ T5851] syzkaller #0 Not tainted [ 97.929815][ T5851] -------------------------------------------- [ 97.934807][ T5858] ieee80211 phy3: Selected rate control algorithm 'minstrel_ht' [ 97.936160][ T5851] syz-executor/5851 is trying to acquire lock: [ 97.950158][ T5851] ffff88807985c0b8 (&hdev->lock){+.+.}-{4:4}, at: mgmt_index_removed+0x10b/0x320 [ 97.959598][ T5851] [ 97.959598][ T5851] but task is already holding lock: [ 97.966985][ T5851] ffff88807985c0b8 (&hdev->lock){+.+.}-{4:4}, at: hci_unregister_dev+0x2e7/0x510 [ 97.976243][ T5851] [ 97.976243][ T5851] other info that might help us debug this: [ 97.984487][ T5851] Possible unsafe locking scenario: [ 97.984487][ T5851] [ 97.992047][ T5851] CPU0 [ 97.995337][ T5851] ---- [ 97.998620][ T5851] lock(&hdev->lock); [ 98.002704][ T5851] lock(&hdev->lock); [ 98.006801][ T5851] [ 98.006801][ T5851] *** DEADLOCK *** [ 98.006801][ T5851] [ 98.015117][ T5851] May be due to missing lock nesting notation [ 98.015117][ T5851] [ 98.023435][ T5851] 1 lock held by syz-executor/5851: [ 98.028870][ T5851] #0: ffff88807985c0b8 (&hdev->lock){+.+.}-{4:4}, at: hci_unregister_dev+0x2e7/0x510 [ 98.038537][ T5851] [ 98.038537][ T5851] stack backtrace: [ 98.044440][ T5851] CPU: 0 UID: 0 PID: 5851 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) [ 98.044462][ T5851] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 [ 98.044471][ T5851] Call Trace: [ 98.044480][ T5851] [ 98.044487][ T5851] dump_stack_lvl+0x189/0x250 [ 98.044512][ T5851] ? __pfx_dump_stack_lvl+0x10/0x10 [ 98.044531][ T5851] ? __pfx__printk+0x10/0x10 [ 98.044546][ T5851] ? print_lock_name+0xde/0x100 [ 98.044560][ T5851] print_deadlock_bug+0x28b/0x2a0 [ 98.044578][ T5851] validate_chain+0x1a3f/0x2140 [ 98.044595][ T5851] ? _raw_spin_unlock_irqrestore+0xad/0x110 [ 98.044616][ T5851] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 98.044642][ T5851] __lock_acquire+0xab9/0xd20 [ 98.044658][ T5851] ? mgmt_index_removed+0x10b/0x320 [ 98.044671][ T5851] lock_acquire+0x120/0x360 [ 98.044684][ T5851] ? mgmt_index_removed+0x10b/0x320 [ 98.044701][ T5851] __mutex_lock+0x187/0x1350 [ 98.044715][ T5851] ? mgmt_index_removed+0x10b/0x320 [ 98.044729][ T5851] ? __mutex_trylock_common+0x153/0x260 [ 98.044748][ T5851] ? mgmt_index_removed+0x10b/0x320 [ 98.044762][ T5851] ? __pfx___mutex_lock+0x10/0x10 [ 98.044775][ T5851] ? trace_contention_end+0x39/0x120 [ 98.044792][ T5851] ? __mutex_lock+0x335/0x1350 [ 98.044815][ T5851] ? hci_unregister_dev+0x222/0x510 [ 98.044835][ T5851] mgmt_index_removed+0x10b/0x320 [ 98.044849][ T5851] ? __pfx___mutex_lock+0x10/0x10 [ 98.044863][ T5851] ? __pfx_mgmt_index_removed+0x10/0x10 [ 98.044883][ T5851] ? __pfx_hci_dev_close_sync+0x10/0x10 [ 98.044899][ T5851] hci_unregister_dev+0x2ef/0x510 [ 98.044918][ T5851] vhci_release+0x152/0x1a0 [ 98.044932][ T5851] ? __pfx_vhci_release+0x10/0x10 [ 98.044944][ T5851] __fput+0x44c/0xa70 [ 98.044965][ T5851] task_work_run+0x1d4/0x260 [ 98.044986][ T5851] ? __pfx_task_work_run+0x10/0x10 [ 98.045005][ T5851] ? do_exit+0x6b0/0x2300 [ 98.045022][ T5851] ? kmem_cache_free+0x19b/0x690 [ 98.045044][ T5851] do_exit+0x6b5/0x2300 [ 98.045064][ T5851] ? do_raw_spin_lock+0x121/0x290 [ 98.045083][ T5851] ? __pfx_do_exit+0x10/0x10 [ 98.045105][ T5851] do_group_exit+0x21c/0x2d0 [ 98.045124][ T5851] ? lockdep_hardirqs_on+0x9c/0x150 [ 98.045138][ T5851] get_signal+0x1285/0x1340 [ 98.045158][ T5851] arch_do_signal_or_restart+0xa0/0x790 [ 98.045181][ T5851] ? __pfx_arch_do_signal_or_restart+0x10/0x10 [ 98.045206][ T5851] ? exit_to_user_mode_loop+0x40/0x130 [ 98.045220][ T5851] exit_to_user_mode_loop+0x72/0x130 [ 98.045233][ T5851] do_syscall_64+0x2bd/0xfa0 [ 98.045247][ T5851] ? lockdep_hardirqs_on+0x9c/0x150 [ 98.045260][ T5851] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 98.045274][ T5851] ? clear_bhb_loop+0x60/0xb0 [ 98.045289][ T5851] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 98.045302][ T5851] RIP: 0033:0x7f01e85915e7 [ 98.045315][ T5851] Code: Unable to access opcode bytes at 0x7f01e85915bd. [ 98.045322][ T5851] RSP: 002b:00007ffd3b28dfa8 EFLAGS: 00000202 ORIG_RAX: 0000000000000029 [ 98.045339][ T5851] RAX: 0000000000000003 RBX: 00007f01e87b1300 RCX: 00007f01e85915e7 [ 98.045350][ T5851] RDX: 0000000000000006 RSI: 0000000000000001 RDI: 0000000000000002 [ 98.045358][ T5851] RBP: 00007ffd3b28e6cc R08: 0000000000000000 R09: 00007ffd3b28e3d7 [ 98.045367][ T5851] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000001 [ 98.045375][ T5851] R13: 00007f01e87b1280 R14: 0000000000000000 R15: 00007ffd3b28e720 [ 98.045390][ T5851] [ 98.378540][ T12] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 98.386690][ T12] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 98.389814][ T5858] ieee80211 phy4: Selected rate control algorithm 'minstrel_ht' [ 98.411678][ T79] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 98.419746][ T79] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 99.353370][ T5894] chnl_net:caif_netlink_parms(): no params data found [ 99.418057][ T5894] bridge0: port 1(bridge_slave_0) entered blocking state [ 99.425428][ T5894] bridge0: port 1(bridge_slave_0) entered disabled state [ 99.432627][ T5894] bridge_slave_0: entered allmulticast mode [ 99.439520][ T5894] bridge_slave_0: entered promiscuous mode [ 99.447024][ T5894] bridge0: port 2(bridge_slave_1) entered blocking state [ 99.454503][ T5894] bridge0: port 2(bridge_slave_1) entered disabled state [ 99.462695][ T5894] bridge_slave_1: entered allmulticast mode [ 99.470917][ T5894] bridge_slave_1: entered promiscuous mode [ 99.501077][ T5894] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 99.512217][ T5894] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 99.532942][ T5894] team0: Port device team_slave_0 added [ 99.540510][ T5894] team0: Port device team_slave_1 added [ 99.561110][ T5894] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 99.568213][ T5894] 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 1532 would solve the problem. [ 99.594552][ T5894] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 99.606103][ T5894] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 99.613063][ T5894] 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 1532 would solve the problem. [ 99.639753][ T5894] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 99.674242][ T5894] hsr_slave_0: entered promiscuous mode [ 99.680522][ T5894] hsr_slave_1: entered promiscuous mode [ 99.748239][ T5894] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 99.757893][ T5894] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 99.767651][ T5894] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 99.776497][ T5894] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 99.794605][ T5894] bridge0: port 2(bridge_slave_1) entered blocking state [ 99.801694][ T5894] bridge0: port 2(bridge_slave_1) entered forwarding state [ 99.809289][ T5894] bridge0: port 1(bridge_slave_0) entered blocking state [ 99.816402][ T5894] bridge0: port 1(bridge_slave_0) entered forwarding state [ 99.849208][ T5894] 8021q: adding VLAN 0 to HW filter on device bond0 [ 99.861911][ T79] bridge0: port 1(bridge_slave_0) entered disabled state [ 99.870963][ T79] bridge0: port 2(bridge_slave_1) entered disabled state [ 99.882660][ T5894] 8021q: adding VLAN 0 to HW filter on device team0 [ 99.895117][ T50] bridge0: port 1(bridge_slave_0) entered blocking state [ 99.902499][ T50] bridge0: port 1(bridge_slave_0) entered forwarding state [ 99.914797][ T79] bridge0: port 2(bridge_slave_1) entered blocking state [ 99.921907][ T79] bridge0: port 2(bridge_slave_1) entered forwarding state [ 100.027173][ T5894] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 100.059727][ T5894] veth0_vlan: entered promiscuous mode [ 100.069248][ T5894] veth1_vlan: entered promiscuous mode [ 100.089179][ T5894] veth0_macvtap: entered promiscuous mode [ 100.098172][ T5894] veth1_macvtap: entered promiscuous mode [ 100.110792][ T5894] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 100.123421][ T5894] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 100.135149][ T50] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 100.144394][ T50] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 100.154732][ T50] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 100.163861][ T50] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 100.247849][ T79] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 100.282107][ T79] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 100.345609][ T79] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 100.431459][ T79] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 2025/11/16 08:20:35 executed programs: 0 [ 100.990449][ T5146] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1 [ 100.998317][ T5146] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9 [ 101.007725][ T5146] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9 [ 101.015889][ T5146] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4 [ 101.024741][ T5146] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2 [ 101.118697][ T5934] chnl_net:caif_netlink_parms(): no params data found [ 101.161430][ T5934] bridge0: port 1(bridge_slave_0) entered blocking state [ 101.169408][ T5934] bridge0: port 1(bridge_slave_0) entered disabled state [ 101.176899][ T5934] bridge_slave_0: entered allmulticast mode [ 101.183902][ T5934] bridge_slave_0: entered promiscuous mode [ 101.191277][ T5934] bridge0: port 2(bridge_slave_1) entered blocking state [ 101.198558][ T5934] bridge0: port 2(bridge_slave_1) entered disabled state [ 101.205858][ T5934] bridge_slave_1: entered allmulticast mode [ 101.212895][ T5934] bridge_slave_1: entered promiscuous mode [ 101.235387][ T5934] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 101.247326][ T5934] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 101.273904][ T5934] team0: Port device team_slave_0 added [ 101.280932][ T5934] team0: Port device team_slave_1 added [ 101.298158][ T5934] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 101.305607][ T5934] 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 1532 would solve the problem. [ 101.332185][ T5934] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 101.344400][ T5934] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 101.351729][ T5934] 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 1532 would solve the problem. [ 101.379297][ T5934] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 101.409545][ T5934] hsr_slave_0: entered promiscuous mode [ 101.416136][ T5934] hsr_slave_1: entered promiscuous mode [ 101.422075][ T5934] debugfs: 'hsr0' already exists in 'hsr' [ 101.428232][ T5934] Cannot create hsr debugfs directory [ 103.083403][ T5852] Bluetooth: hci1: command tx timeout [ 103.408906][ T79] bridge_slave_1: left allmulticast mode [ 103.416318][ T79] bridge_slave_1: left promiscuous mode [ 103.422340][ T79] bridge0: port 2(bridge_slave_1) entered disabled state [ 103.434700][ T79] bridge_slave_0: left allmulticast mode [ 103.440485][ T79] bridge_slave_0: left promiscuous mode [ 103.446862][ T79] bridge0: port 1(bridge_slave_0) entered disabled state [ 103.557628][ T79] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 103.568674][ T79] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 103.578654][ T79] bond0 (unregistering): Released all slaves [ 103.688535][ T79] hsr_slave_0: left promiscuous mode [ 103.699423][ T79] hsr_slave_1: left promiscuous mode [ 103.705766][ T79] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 103.714781][ T79] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 103.722702][ T79] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 103.730697][ T79] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 103.742099][ T79] veth1_macvtap: left promiscuous mode [ 103.748282][ T79] veth0_macvtap: left promiscuous mode [ 103.753965][ T79] veth1_vlan: left promiscuous mode [ 103.759445][ T79] veth0_vlan: left promiscuous mode [ 103.921563][ T79] team0 (unregistering): Port device team_slave_1 removed [ 103.932559][ T79] team0 (unregistering): Port device team_slave_0 removed [ 104.214906][ T5934] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 104.228969][ T5934] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 104.239124][ T5934] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 104.249179][ T5934] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 104.341776][ T5934] 8021q: adding VLAN 0 to HW filter on device bond0 [ 104.358525][ T5934] 8021q: adding VLAN 0 to HW filter on device team0 [ 104.375257][ T1085] bridge0: port 1(bridge_slave_0) entered blocking state [ 104.382582][ T1085] bridge0: port 1(bridge_slave_0) entered forwarding state [ 104.401872][ T1085] bridge0: port 2(bridge_slave_1) entered blocking state [ 104.409195][ T1085] bridge0: port 2(bridge_slave_1) entered forwarding state [ 104.738722][ T5934] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 104.765852][ T5934] veth0_vlan: entered promiscuous mode [ 104.775508][ T5934] veth1_vlan: entered promiscuous mode [ 104.796938][ T5934] veth0_macvtap: entered promiscuous mode [ 104.805872][ T5934] veth1_macvtap: entered promiscuous mode [ 104.818189][ T5934] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 104.830594][ T5934] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 104.844301][ T1144] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 104.854320][ T12] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 104.866000][ T12] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 104.874997][ T12] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 104.897274][ T5934] ieee80211 phy5: Selected rate control algorithm 'minstrel_ht' [ 104.916565][ T1085] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 104.917918][ T5934] ieee80211 phy6: Selected rate control algorithm 'minstrel_ht' [ 104.928653][ T1085] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 SYZFAIL: failed to recv rpc fd=3 want=4 recv=0 n=0 (errno 9: Bad file descriptor) [ 104.951336][ T1085] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 104.959711][ T1085] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 syzkaller build log: go env (err=) AR='ar' CC='gcc' CGO_CFLAGS='-O2 -g' CGO_CPPFLAGS='' CGO_CXXFLAGS='-O2 -g' CGO_ENABLED='1' CGO_FFLAGS='-O2 -g' CGO_LDFLAGS='-O2 -g' CXX='g++' GCCGO='gccgo' GO111MODULE='auto' GOAMD64='v1' GOARCH='amd64' GOAUTH='netrc' GOBIN='' GOCACHE='/syzkaller/.cache/go-build' GOCACHEPROG='' GODEBUG='' GOENV='/syzkaller/.config/go/env' GOEXE='' GOEXPERIMENT='' GOFIPS140='off' GOFLAGS='' GOGCCFLAGS='-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/tmp/go-build2571666063=/tmp/go-build -gno-record-gcc-switches' GOHOSTARCH='amd64' GOHOSTOS='linux' GOINSECURE='' GOMOD='/syzkaller/jobs-2/linux/gopath/src/github.com/google/syzkaller/go.mod' GOMODCACHE='/syzkaller/jobs-2/linux/gopath/pkg/mod' GONOPROXY='' GONOSUMDB='' GOOS='linux' GOPATH='/syzkaller/jobs-2/linux/gopath' GOPRIVATE='' GOPROXY='https://proxy.golang.org,direct' GOROOT='/usr/local/go' GOSUMDB='sum.golang.org' GOTELEMETRY='local' GOTELEMETRYDIR='/syzkaller/.config/go/telemetry' GOTMPDIR='' GOTOOLCHAIN='auto' GOTOOLDIR='/usr/local/go/pkg/tool/linux_amd64' GOVCS='' GOVERSION='go1.24.4' GOWORK='' PKG_CONFIG='pkg-config' git status (err=) HEAD detached at 07e030dea nothing to commit, working tree clean tput: No value for $TERM and no -T specified tput: No value for $TERM and no -T specified Makefile:31: run command via tools/syz-env for best compatibility, see: Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env go list -f '{{.Stale}}' -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=07e030dea6e6d9ca88b75bb3be2810f47083b328 -X github.com/google/syzkaller/prog.gitRevisionDate=20251112-115923" ./sys/syz-sysgen | grep -q false || go install -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=07e030dea6e6d9ca88b75bb3be2810f47083b328 -X github.com/google/syzkaller/prog.gitRevisionDate=20251112-115923" ./sys/syz-sysgen make .descriptions tput: No value for $TERM and no -T specified tput: No value for $TERM and no -T specified Makefile:31: run command via tools/syz-env for best compatibility, see: Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env bin/syz-sysgen touch .descriptions GOOS=linux GOARCH=amd64 go build -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=07e030dea6e6d9ca88b75bb3be2810f47083b328 -X github.com/google/syzkaller/prog.gitRevisionDate=20251112-115923" -o ./bin/linux_amd64/syz-execprog github.com/google/syzkaller/tools/syz-execprog mkdir -p ./bin/linux_amd64 g++ -o ./bin/linux_amd64/syz-executor executor/executor.cc \ -m64 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-format-overflow -Wno-unused-but-set-variable -Wno-unused-command-line-argument -static-pie -std=c++17 -I. -Iexecutor/_include -DGOOS_linux=1 -DGOARCH_amd64=1 \ -DHOSTGOOS_linux=1 -DGIT_REVISION=\"07e030dea6e6d9ca88b75bb3be2810f47083b328\" /usr/bin/ld: /tmp/ccL2C3R3.o: in function `Connection::Connect(char const*, char const*)': executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7ConnectEPKcS1_]+0x104): warning: Using 'gethostbyname' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking ./tools/check-syzos.sh 2>/dev/null