[  442.844553][    T9] device hsr_slave_0 left promiscuous mode
[  442.851089][    T9] device hsr_slave_1 left promiscuous mode
[  442.859307][    T9] batman_adv: batadv0: Interface deactivated: batadv_slave_0
[  442.866932][    T9] batman_adv: batadv0: Removing interface: batadv_slave_0
[  442.875440][    T9] batman_adv: batadv0: Interface deactivated: batadv_slave_1
[  442.883146][    T9] batman_adv: batadv0: Removing interface: batadv_slave_1
[  442.891041][    T9] device bridge_slave_1 left promiscuous mode
[  442.897667][    T9] bridge0: port 2(bridge_slave_1) entered disabled state
[  442.906841][    T9] device bridge_slave_0 left promiscuous mode
[  442.913858][    T9] bridge0: port 1(bridge_slave_0) entered disabled state
[  442.926427][    T9] device veth1_macvtap left promiscuous mode
[  442.933012][    T9] device veth0_macvtap left promiscuous mode
[  442.939518][    T9] device veth1_vlan left promiscuous mode
[  442.945862][    T9] device veth0_vlan left promiscuous mode
[  443.045727][    T9] team0 (unregistering): Port device team_slave_1 removed
[  443.057632][    T9] team0 (unregistering): Port device team_slave_0 removed
[  443.069346][    T9] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface
[  443.085688][    T9] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface
[  443.128730][    T9] bond0 (unregistering): Released all slaves
Warning: Permanently added '10.128.1.221' (ED25519) to the list of known hosts.
executing program
[  447.568219][  T147] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci0/hci0:201'
[  447.578577][  T147] CPU: 0 PID: 147 Comm: kworker/u5:0 Not tainted syzkaller #0
[  447.586462][  T147] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  447.597225][  T147] Workqueue: hci0 hci_rx_work
[  447.602009][  T147] Call Trace:
[  447.605301][  T147]  <TASK>
[  447.608583][  T147]  dump_stack_lvl+0x188/0x250
[  447.613408][  T147]  ? show_regs_print_info+0x20/0x20
[  447.618794][  T147]  ? load_image+0x400/0x400
[  447.624341][  T147]  sysfs_create_dir_ns+0x26a/0x290
[  447.630676][  T147]  ? sysfs_warn_dup+0xa0/0xa0
[  447.635948][  T147]  ? process_one_work+0x85f/0x1010
[  447.641206][  T147]  ? do_raw_spin_unlock+0x11d/0x230
[  447.646774][  T147]  kobject_add_internal+0x6e0/0xd90
[  447.652589][  T147]  kobject_add+0x160/0x230
[  447.657458][  T147]  ? kobject_init+0x1d0/0x1d0
[  447.662392][  T147]  ? klist_children_get+0x50/0x50
[  447.667770][  T147]  ? get_device_parent+0x121/0x3f0
[  447.672898][  T147]  device_add+0x483/0xfb0
[  447.677563][  T147]  hci_conn_add_sysfs+0xd1/0x1e0
[  447.682835][  T147]  le_conn_complete_evt+0xc48/0x15c0
[  447.688286][  T147]  ? cs_le_create_conn+0x5e0/0x5e0
[  447.693606][  T147]  ? __mutex_trylock_common+0x155/0x260
[  447.699435][  T147]  hci_le_meta_evt+0x285/0x3c90
[  447.704471][  T147]  ? hci_event_packet+0x37b/0x1370
[  447.709677][  T147]  ? __lock_acquire+0x7d10/0x7d10
[  447.715169][  T147]  ? hci_remote_host_features_evt+0x280/0x280
[  447.721863][  T147]  ? __mutex_unlock_slowpath+0x1b0/0x6c0
[  447.727507][  T147]  ? mark_lock+0x94/0x320
[  447.731963][  T147]  ? mutex_unlock+0x10/0x10
[  447.736580][  T147]  ? lockdep_hardirqs_on_prepare+0x409/0x770
[  447.742820][  T147]  ? lock_chain_count+0x20/0x20
[  447.747673][  T147]  ? __rwlock_init+0x140/0x140
[  447.752686][  T147]  hci_event_packet+0xe48/0x1370
[  447.758113][  T147]  ? lockdep_hardirqs_on+0x94/0x140
[  447.763614][  T147]  ? rcu_lock_release+0x20/0x20
[  447.768768][  T147]  ? hci_send_to_monitor+0x9c/0x4a0
[  447.774239][  T147]  hci_rx_work+0x255/0xa10
[  447.779374][  T147]  process_one_work+0x85f/0x1010
[  447.784692][  T147]  ? worker_detach_from_pool+0x240/0x240
[  447.790812][  T147]  ? lockdep_hardirqs_off+0x70/0x100
[  447.796477][  T147]  ? _raw_spin_lock_irq+0xb7/0xf0
[  447.801509][  T147]  ? _raw_spin_lock_irqsave+0x100/0x100
[  447.807430][  T147]  ? wq_worker_running+0x97/0x170
[  447.813031][  T147]  worker_thread+0xaa6/0x1290
the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed
executing program
[  447.818229][  T147]  kthread+0x436/0x520
[  447.822741][  T147]  ? rcu_lock_release+0x20/0x20
[  447.828459][  T147]  ? kthread_blkcg+0xd0/0xd0
[  447.833323][  T147]  ret_from_fork+0x1f/0x30
[  447.838320][  T147]  </TASK>
[  447.842088][  T147] kobject_add_internal failed for hci0:201 with -EEXIST, don't try to register things with the same name in the same directory.
[  447.856341][  T147] Bluetooth: hci0: failed to register connection device
[  447.879650][  T147] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci0/hci0:201'
[  447.890558][  T147] CPU: 0 PID: 147 Comm: kworker/u5:0 Not tainted syzkaller #0
[  447.898298][  T147] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  447.908676][  T147] Workqueue: hci0 hci_rx_work
[  447.913538][  T147] Call Trace:
[  447.916953][  T147]  <TASK>
[  447.920162][  T147]  dump_stack_lvl+0x188/0x250
[  447.925719][  T147]  ? show_regs_print_info+0x20/0x20
[  447.932235][  T147]  ? load_image+0x400/0x400
[  447.937205][  T147]  sysfs_create_dir_ns+0x26a/0x290
[  447.943222][  T147]  ? sysfs_warn_dup+0xa0/0xa0
[  447.947976][  T147]  ? process_one_work+0x85f/0x1010
[  447.953175][  T147]  ? do_raw_spin_unlock+0x11d/0x230
[  447.958820][  T147]  kobject_add_internal+0x6e0/0xd90
[  447.964372][  T147]  kobject_add+0x160/0x230
[  447.968983][  T147]  ? kobject_init+0x1d0/0x1d0
[  447.973653][  T147]  ? klist_children_get+0x50/0x50
[  447.978770][  T147]  ? get_device_parent+0x121/0x3f0
[  447.984168][  T147]  device_add+0x483/0xfb0
[  447.988836][  T147]  hci_conn_add_sysfs+0xd1/0x1e0
[  447.994579][  T147]  le_conn_complete_evt+0xc48/0x15c0
[  448.000259][  T147]  ? cs_le_create_conn+0x5e0/0x5e0
[  448.005706][  T147]  ? __mutex_trylock_common+0x155/0x260
[  448.012630][  T147]  hci_le_meta_evt+0x285/0x3c90
[  448.018064][  T147]  ? hci_event_packet+0x37b/0x1370
[  448.024987][  T147]  ? __lock_acquire+0x7d10/0x7d10
[  448.030381][  T147]  ? hci_remote_host_features_evt+0x280/0x280
[  448.037409][  T147]  ? __mutex_unlock_slowpath+0x1b0/0x6c0
[  448.044380][  T147]  ? mark_lock+0x94/0x320
[  448.049076][  T147]  ? mutex_unlock+0x10/0x10
[  448.053772][  T147]  ? lockdep_hardirqs_on_prepare+0x409/0x770
[  448.060309][  T147]  ? lock_chain_count+0x20/0x20
[  448.065459][  T147]  ? __rwlock_init+0x140/0x140
[  448.070641][  T147]  hci_event_packet+0xe48/0x1370
[  448.076140][  T147]  ? lockdep_hardirqs_on+0x94/0x140
[  448.082393][  T147]  ? rcu_lock_release+0x20/0x20
[  448.087493][  T147]  ? hci_send_to_monitor+0x9c/0x4a0
[  448.092781][  T147]  hci_rx_work+0x255/0xa10
[  448.097463][  T147]  process_one_work+0x85f/0x1010
[  448.102935][  T147]  ? worker_detach_from_pool+0x240/0x240
[  448.109143][  T147]  ? lockdep_hardirqs_off+0x70/0x100
[  448.114982][  T147]  ? _raw_spin_lock_irq+0xb7/0xf0
[  448.120630][  T147]  ? _raw_spin_lock_irqsave+0x100/0x100
[  448.126378][  T147]  ? wq_worker_running+0x97/0x170
[  448.131948][  T147]  worker_thread+0xaa6/0x1290
[  448.136740][  T147]  kthread+0x436/0x520
[  448.141013][  T147]  ? rcu_lock_release+0x20/0x20
[  448.146307][  T147]  ? kthread_blkcg+0xd0/0xd0
[  448.151827][  T147]  ret_from_fork+0x1f/0x30
[  448.156655][  T147]  </TASK>
[  448.160410][  T147] kobject_add_internal failed for hci0:201 with -EEXIST, don't try to register things with the same name in the same directory.
[  448.174097][  T147] Bluetooth: hci0: failed to register connection device
the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed
executing program
[  448.189345][  T147] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci0/hci0:201'
[  448.199595][  T147] CPU: 1 PID: 147 Comm: kworker/u5:0 Not tainted syzkaller #0
[  448.207258][  T147] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  448.217394][  T147] Workqueue: hci0 hci_rx_work
[  448.222106][  T147] Call Trace:
[  448.225912][  T147]  <TASK>
[  448.229200][  T147]  dump_stack_lvl+0x188/0x250
[  448.233902][  T147]  ? show_regs_print_info+0x20/0x20
[  448.239202][  T147]  ? load_image+0x400/0x400
[  448.243716][  T147]  sysfs_create_dir_ns+0x26a/0x290
[  448.249257][  T147]  ? sysfs_warn_dup+0xa0/0xa0
[  448.254217][  T147]  ? process_one_work+0x85f/0x1010
[  448.259928][  T147]  ? do_raw_spin_unlock+0x11d/0x230
[  448.265388][  T147]  kobject_add_internal+0x6e0/0xd90
[  448.270858][  T147]  kobject_add+0x160/0x230
[  448.275476][  T147]  ? kobject_init+0x1d0/0x1d0
[  448.280482][  T147]  ? klist_children_get+0x50/0x50
[  448.285610][  T147]  ? get_device_parent+0x121/0x3f0
[  448.290894][  T147]  device_add+0x483/0xfb0
[  448.295227][  T147]  hci_conn_add_sysfs+0xd1/0x1e0
[  448.300252][  T147]  le_conn_complete_evt+0xc48/0x15c0
[  448.305908][  T147]  ? cs_le_create_conn+0x5e0/0x5e0
[  448.311201][  T147]  ? __mutex_trylock_common+0x155/0x260
[  448.316833][  T147]  hci_le_meta_evt+0x285/0x3c90
[  448.321785][  T147]  ? hci_event_packet+0x37b/0x1370
[  448.327348][  T147]  ? __lock_acquire+0x7d10/0x7d10
[  448.332654][  T147]  ? hci_remote_host_features_evt+0x280/0x280
[  448.339367][  T147]  ? __mutex_unlock_slowpath+0x1b0/0x6c0
[  448.345016][  T147]  ? mark_lock+0x94/0x320
[  448.349673][  T147]  ? mutex_unlock+0x10/0x10
[  448.354306][  T147]  ? lockdep_hardirqs_on_prepare+0x409/0x770
[  448.360608][  T147]  ? lock_chain_count+0x20/0x20
[  448.365637][  T147]  ? __rwlock_init+0x140/0x140
[  448.370712][  T147]  hci_event_packet+0xe48/0x1370
[  448.376370][  T147]  ? lockdep_hardirqs_on+0x94/0x140
[  448.381587][  T147]  ? rcu_lock_release+0x20/0x20
[  448.386537][  T147]  ? hci_send_to_monitor+0x9c/0x4a0
[  448.391835][  T147]  hci_rx_work+0x255/0xa10
[  448.396386][  T147]  process_one_work+0x85f/0x1010
[  448.401505][  T147]  ? worker_detach_from_pool+0x240/0x240
[  448.407564][  T147]  ? lockdep_hardirqs_off+0x70/0x100
[  448.413495][  T147]  ? _raw_spin_lock_irq+0xb7/0xf0
[  448.419282][  T147]  ? _raw_spin_lock_irqsave+0x100/0x100
[  448.425005][  T147]  ? wq_worker_running+0x97/0x170
[  448.430032][  T147]  worker_thread+0xaa6/0x1290
[  448.434930][  T147]  kthread+0x436/0x520
the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed
executing program
[  448.439197][  T147]  ? rcu_lock_release+0x20/0x20
[  448.444128][  T147]  ? kthread_blkcg+0xd0/0xd0
[  448.448708][  T147]  ret_from_fork+0x1f/0x30
[  448.453219][  T147]  </TASK>
[  448.457142][  T147] kobject_add_internal failed for hci0:201 with -EEXIST, don't try to register things with the same name in the same directory.
[  448.470635][  T147] Bluetooth: hci0: failed to register connection device
[  448.487527][  T147] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci0/hci0:201'
[  448.497197][  T147] CPU: 0 PID: 147 Comm: kworker/u5:0 Not tainted syzkaller #0
[  448.505319][  T147] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  448.516202][  T147] Workqueue: hci0 hci_rx_work
[  448.521208][  T147] Call Trace:
[  448.524483][  T147]  <TASK>
[  448.527513][  T147]  dump_stack_lvl+0x188/0x250
[  448.532488][  T147]  ? show_regs_print_info+0x20/0x20
[  448.537697][  T147]  ? load_image+0x400/0x400
[  448.542568][  T147]  sysfs_create_dir_ns+0x26a/0x290
[  448.548453][  T147]  ? sysfs_warn_dup+0xa0/0xa0
[  448.553302][  T147]  ? process_one_work+0x85f/0x1010
[  448.558496][  T147]  ? do_raw_spin_unlock+0x11d/0x230
[  448.564057][  T147]  kobject_add_internal+0x6e0/0xd90
[  448.569577][  T147]  kobject_add+0x160/0x230
[  448.574250][  T147]  ? kobject_init+0x1d0/0x1d0
[  448.580265][  T147]  ? klist_children_get+0x50/0x50
[  448.585552][  T147]  ? get_device_parent+0x121/0x3f0
[  448.591332][  T147]  device_add+0x483/0xfb0
[  448.596132][  T147]  hci_conn_add_sysfs+0xd1/0x1e0
[  448.601179][  T147]  le_conn_complete_evt+0xc48/0x15c0
[  448.607167][  T147]  ? cs_le_create_conn+0x5e0/0x5e0
[  448.612571][  T147]  ? __mutex_trylock_common+0x155/0x260
[  448.618371][  T147]  hci_le_meta_evt+0x285/0x3c90
[  448.624143][  T147]  ? hci_event_packet+0x37b/0x1370
[  448.629524][  T147]  ? __lock_acquire+0x7d10/0x7d10
[  448.634914][  T147]  ? hci_remote_host_features_evt+0x280/0x280
[  448.641245][  T147]  ? __mutex_unlock_slowpath+0x1b0/0x6c0
[  448.647152][  T147]  ? mark_lock+0x94/0x320
[  448.651771][  T147]  ? mutex_unlock+0x10/0x10
[  448.656836][  T147]  ? lockdep_hardirqs_on_prepare+0x409/0x770
[  448.663646][  T147]  ? lock_chain_count+0x20/0x20
[  448.669155][  T147]  ? __rwlock_init+0x140/0x140
[  448.674223][  T147]  hci_event_packet+0xe48/0x1370
[  448.679167][  T147]  ? lockdep_hardirqs_on+0x94/0x140
[  448.684369][  T147]  ? rcu_lock_release+0x20/0x20
[  448.689586][  T147]  ? hci_send_to_monitor+0x9c/0x4a0
[  448.694961][  T147]  hci_rx_work+0x255/0xa10
[  448.699917][  T147]  process_one_work+0x85f/0x1010
[  448.705203][  T147]  ? worker_detach_from_pool+0x240/0x240
[  448.711192][  T147]  ? lockdep_hardirqs_off+0x70/0x100
[  448.716515][  T147]  ? _raw_spin_lock_irq+0xb7/0xf0
[  448.721875][  T147]  ? _raw_spin_lock_irqsave+0x100/0x100
[  448.727542][  T147]  ? wq_worker_running+0x97/0x170
[  448.732564][  T147]  worker_thread+0xaa6/0x1290
[  448.737375][  T147]  kthread+0x436/0x520
the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed
executing program
[  448.741820][  T147]  ? rcu_lock_release+0x20/0x20
[  448.746683][  T147]  ? kthread_blkcg+0xd0/0xd0
[  448.751447][  T147]  ret_from_fork+0x1f/0x30
[  448.756092][  T147]  </TASK>
[  448.760968][  T147] kobject_add_internal failed for hci0:201 with -EEXIST, don't try to register things with the same name in the same directory.
[  448.774839][  T147] Bluetooth: hci0: failed to register connection device
[  448.788298][  T147] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci0/hci0:201'
[  448.799480][  T147] CPU: 1 PID: 147 Comm: kworker/u5:0 Not tainted syzkaller #0
[  448.808153][  T147] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  448.818863][  T147] Workqueue: hci0 hci_rx_work
[  448.824020][  T147] Call Trace:
[  448.827306][  T147]  <TASK>
[  448.830345][  T147]  dump_stack_lvl+0x188/0x250
[  448.835535][  T147]  ? show_regs_print_info+0x20/0x20
[  448.840737][  T147]  ? load_image+0x400/0x400
[  448.845671][  T147]  sysfs_create_dir_ns+0x26a/0x290
[  448.851154][  T147]  ? sysfs_warn_dup+0xa0/0xa0
[  448.856107][  T147]  ? process_one_work+0x85f/0x1010
[  448.861714][  T147]  ? do_raw_spin_unlock+0x11d/0x230
[  448.867234][  T147]  kobject_add_internal+0x6e0/0xd90
[  448.872709][  T147]  kobject_add+0x160/0x230
[  448.877445][  T147]  ? kobject_init+0x1d0/0x1d0
[  448.883200][  T147]  ? klist_children_get+0x50/0x50
[  448.888645][  T147]  ? get_device_parent+0x121/0x3f0
[  448.893854][  T147]  device_add+0x483/0xfb0
[  448.898406][  T147]  hci_conn_add_sysfs+0xd1/0x1e0
[  448.903874][  T147]  le_conn_complete_evt+0xc48/0x15c0
[  448.909263][  T147]  ? cs_le_create_conn+0x5e0/0x5e0
[  448.914579][  T147]  ? __mutex_trylock_common+0x155/0x260
[  448.920642][  T147]  hci_le_meta_evt+0x285/0x3c90
[  448.926162][  T147]  ? hci_event_packet+0x37b/0x1370
[  448.932379][  T147]  ? __lock_acquire+0x7d10/0x7d10
[  448.937526][  T147]  ? hci_remote_host_features_evt+0x280/0x280
[  448.944111][  T147]  ? __mutex_unlock_slowpath+0x1b0/0x6c0
[  448.950097][  T147]  ? mark_lock+0x94/0x320
[  448.954622][  T147]  ? mutex_unlock+0x10/0x10
[  448.959306][  T147]  ? lockdep_hardirqs_on_prepare+0x409/0x770
[  448.966108][  T147]  ? lock_chain_count+0x20/0x20
[  448.971356][  T147]  ? __rwlock_init+0x140/0x140
[  448.976736][  T147]  hci_event_packet+0xe48/0x1370
[  448.981861][  T147]  ? lockdep_hardirqs_on+0x94/0x140
[  448.987168][  T147]  ? rcu_lock_release+0x20/0x20
[  448.992104][  T147]  ? hci_send_to_monitor+0x9c/0x4a0
[  448.997304][  T147]  hci_rx_work+0x255/0xa10
[  449.001712][  T147]  process_one_work+0x85f/0x1010
[  449.007030][  T147]  ? worker_detach_from_pool+0x240/0x240
[  449.012917][  T147]  ? lockdep_hardirqs_off+0x70/0x100
[  449.018832][  T147]  ? _raw_spin_lock_irq+0xb7/0xf0
[  449.024827][  T147]  ? _raw_spin_lock_irqsave+0x100/0x100
[  449.030912][  T147]  ? wq_worker_running+0x97/0x170
[  449.036114][  T147]  worker_thread+0xaa6/0x1290
the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed
executing program
[  449.040957][  T147]  kthread+0x436/0x520
[  449.045889][  T147]  ? rcu_lock_release+0x20/0x20
[  449.051258][  T147]  ? kthread_blkcg+0xd0/0xd0
[  449.056461][  T147]  ret_from_fork+0x1f/0x30
[  449.062025][  T147]  </TASK>
[  449.066311][  T147] kobject_add_internal failed for hci0:201 with -EEXIST, don't try to register things with the same name in the same directory.
[  449.080941][  T147] Bluetooth: hci0: failed to register connection device
[  449.098863][  T147] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci0/hci0:201'
[  449.110230][  T147] CPU: 0 PID: 147 Comm: kworker/u5:0 Not tainted syzkaller #0
[  449.118707][  T147] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  449.129453][  T147] Workqueue: hci0 hci_rx_work
[  449.134720][  T147] Call Trace:
[  449.138185][  T147]  <TASK>
[  449.141747][  T147]  dump_stack_lvl+0x188/0x250
[  449.147503][  T147]  ? show_regs_print_info+0x20/0x20
[  449.153846][  T147]  ? load_image+0x400/0x400
[  449.159649][  T147]  sysfs_create_dir_ns+0x26a/0x290
[  449.166204][  T147]  ? sysfs_warn_dup+0xa0/0xa0
[  449.171224][  T147]  ? process_one_work+0x85f/0x1010
[  449.177611][  T147]  ? do_raw_spin_unlock+0x11d/0x230
[  449.184126][  T147]  kobject_add_internal+0x6e0/0xd90
[  449.189727][  T147]  kobject_add+0x160/0x230
[  449.195557][  T147]  ? kobject_init+0x1d0/0x1d0
[  449.201183][  T147]  ? klist_children_get+0x50/0x50
[  449.207683][  T147]  ? get_device_parent+0x121/0x3f0
[  449.213247][  T147]  device_add+0x483/0xfb0
[  449.217963][  T147]  hci_conn_add_sysfs+0xd1/0x1e0
[  449.224541][  T147]  le_conn_complete_evt+0xc48/0x15c0
[  449.230618][  T147]  ? cs_le_create_conn+0x5e0/0x5e0
[  449.237123][  T147]  ? __mutex_trylock_common+0x155/0x260
[  449.243407][  T147]  hci_le_meta_evt+0x285/0x3c90
[  449.248731][  T147]  ? hci_event_packet+0x37b/0x1370
[  449.254492][  T147]  ? __lock_acquire+0x7d10/0x7d10
[  449.259977][  T147]  ? hci_remote_host_features_evt+0x280/0x280
[  449.266763][  T147]  ? __mutex_unlock_slowpath+0x1b0/0x6c0
[  449.273273][  T147]  ? mark_lock+0x94/0x320
[  449.278289][  T147]  ? mutex_unlock+0x10/0x10
[  449.283875][  T147]  ? lockdep_hardirqs_on_prepare+0x409/0x770
[  449.290209][  T147]  ? lock_chain_count+0x20/0x20
[  449.296834][  T147]  ? __rwlock_init+0x140/0x140
[  449.302291][  T147]  hci_event_packet+0xe48/0x1370
[  449.307529][  T147]  ? lockdep_hardirqs_on+0x94/0x140
[  449.313154][  T147]  ? rcu_lock_release+0x20/0x20
[  449.318375][  T147]  ? hci_send_to_monitor+0x9c/0x4a0
[  449.323847][  T147]  hci_rx_work+0x255/0xa10
[  449.328693][  T147]  process_one_work+0x85f/0x1010
[  449.333842][  T147]  ? worker_detach_from_pool+0x240/0x240
[  449.339816][  T147]  ? lockdep_hardirqs_off+0x70/0x100
[  449.345676][  T147]  ? _raw_spin_lock_irq+0xb7/0xf0
[  449.351166][  T147]  ? _raw_spin_lock_irqsave+0x100/0x100
[  449.356768][  T147]  ? wq_worker_running+0x97/0x170
[  449.362013][  T147]  worker_thread+0xaa6/0x1290
[  449.366845][  T147]  kthread+0x436/0x520
[  449.371123][  T147]  ? rcu_lock_release+0x20/0x20
[  449.376156][  T147]  ? kthread_blkcg+0xd0/0xd0
[  449.381233][  T147]  ret_from_fork+0x1f/0x30
[  449.385970][  T147]  </TASK>
the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed
executing program
[  449.389233][  T147] kobject_add_internal failed for hci0:201 with -EEXIST, don't try to register things with the same name in the same directory.
[  449.402606][  T147] Bluetooth: hci0: failed to register connection device
[  449.419917][  T147] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci0/hci0:201'
[  449.430127][  T147] CPU: 1 PID: 147 Comm: kworker/u5:0 Not tainted syzkaller #0
[  449.437797][  T147] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  449.448971][  T147] Workqueue: hci0 hci_rx_work
[  449.453657][  T147] Call Trace:
[  449.456941][  T147]  <TASK>
[  449.459869][  T147]  dump_stack_lvl+0x188/0x250
[  449.465456][  T147]  ? show_regs_print_info+0x20/0x20
[  449.470653][  T147]  ? load_image+0x400/0x400
[  449.475164][  T147]  sysfs_create_dir_ns+0x26a/0x290
[  449.480998][  T147]  ? sysfs_warn_dup+0xa0/0xa0
[  449.486958][  T147]  ? process_one_work+0x85f/0x1010
[  449.493527][  T147]  ? do_raw_spin_unlock+0x11d/0x230
[  449.500067][  T147]  kobject_add_internal+0x6e0/0xd90
[  449.506090][  T147]  kobject_add+0x160/0x230
[  449.510987][  T147]  ? kobject_init+0x1d0/0x1d0
[  449.516616][  T147]  ? klist_children_get+0x50/0x50
[  449.522241][  T147]  ? get_device_parent+0x121/0x3f0
[  449.527642][  T147]  device_add+0x483/0xfb0
[  449.533058][  T147]  hci_conn_add_sysfs+0xd1/0x1e0
[  449.538014][  T147]  le_conn_complete_evt+0xc48/0x15c0
[  449.543725][  T147]  ? cs_le_create_conn+0x5e0/0x5e0
[  449.549518][  T147]  ? __mutex_trylock_common+0x155/0x260
[  449.557142][  T147]  hci_le_meta_evt+0x285/0x3c90
[  449.563500][  T147]  ? hci_event_packet+0x37b/0x1370
[  449.569226][  T147]  ? __lock_acquire+0x7d10/0x7d10
[  449.575270][  T147]  ? hci_remote_host_features_evt+0x280/0x280
[  449.581686][  T147]  ? __mutex_unlock_slowpath+0x1b0/0x6c0
[  449.588229][  T147]  ? mark_lock+0x94/0x320
[  449.593246][  T147]  ? mutex_unlock+0x10/0x10
[  449.598357][  T147]  ? lockdep_hardirqs_on_prepare+0x409/0x770
[  449.604765][  T147]  ? lock_chain_count+0x20/0x20
[  449.609627][  T147]  ? __rwlock_init+0x140/0x140
[  449.614575][  T147]  hci_event_packet+0xe48/0x1370
[  449.619513][  T147]  ? lockdep_hardirqs_on+0x94/0x140
[  449.624998][  T147]  ? rcu_lock_release+0x20/0x20
[  449.630207][  T147]  ? hci_send_to_monitor+0x9c/0x4a0
[  449.635846][  T147]  hci_rx_work+0x255/0xa10
[  449.641021][  T147]  process_one_work+0x85f/0x1010
[  449.646172][  T147]  ? worker_detach_from_pool+0x240/0x240
[  449.654155][  T147]  ? lockdep_hardirqs_off+0x70/0x100
[  449.660324][  T147]  ? _raw_spin_lock_irq+0xb7/0xf0
[  449.665547][  T147]  ? _raw_spin_lock_irqsave+0x100/0x100
[  449.671635][  T147]  ? wq_worker_running+0x97/0x170
[  449.676869][  T147]  worker_thread+0xaa6/0x1290
[  449.682254][  T147]  kthread+0x436/0x520
[  449.686418][  T147]  ? rcu_lock_release+0x20/0x20
[  449.691344][  T147]  ? kthread_blkcg+0xd0/0xd0
[  449.696380][  T147]  ret_from_fork+0x1f/0x30
the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed
executing program
[  449.701150][  T147]  </TASK>
[  449.705641][ T4366] Bluetooth: hci0: command 0x0409 tx timeout
[  449.712087][  T147] kobject_add_internal failed for hci0:201 with -EEXIST, don't try to register things with the same name in the same directory.
[  449.727008][  T147] Bluetooth: hci0: failed to register connection device
[  449.749583][ T4217] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci0/hci0:201'
[  449.759198][ T4217] CPU: 0 PID: 4217 Comm: kworker/u5:1 Not tainted syzkaller #0
[  449.767887][ T4217] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  449.778434][ T4217] Workqueue: hci0 hci_rx_work
[  449.783560][ T4217] Call Trace:
[  449.787106][ T4217]  <TASK>
[  449.790207][ T4217]  dump_stack_lvl+0x188/0x250
[  449.794965][ T4217]  ? show_regs_print_info+0x20/0x20
[  449.800450][ T4217]  ? load_image+0x400/0x400
[  449.805417][ T4217]  sysfs_create_dir_ns+0x26a/0x290
[  449.810725][ T4217]  ? sysfs_warn_dup+0xa0/0xa0
[  449.815405][ T4217]  ? process_one_work+0x85f/0x1010
[  449.820543][ T4217]  ? do_raw_spin_unlock+0x11d/0x230
[  449.825729][ T4217]  kobject_add_internal+0x6e0/0xd90
[  449.830923][ T4217]  kobject_add+0x160/0x230
[  449.835362][ T4217]  ? kobject_init+0x1d0/0x1d0
[  449.840120][ T4217]  ? klist_children_get+0x50/0x50
[  449.845505][ T4217]  ? get_device_parent+0x121/0x3f0
[  449.850745][ T4217]  device_add+0x483/0xfb0
[  449.855248][ T4217]  hci_conn_add_sysfs+0xd1/0x1e0
[  449.860606][ T4217]  le_conn_complete_evt+0xc48/0x15c0
[  449.867224][ T4217]  ? cs_le_create_conn+0x5e0/0x5e0
[  449.873063][ T4217]  ? __mutex_trylock_common+0x155/0x260
[  449.880223][ T4217]  hci_le_meta_evt+0x285/0x3c90
[  449.886072][ T4217]  ? hci_event_packet+0x37b/0x1370
[  449.891455][ T4217]  ? __lock_acquire+0x7d10/0x7d10
[  449.896759][ T4217]  ? hci_remote_host_features_evt+0x280/0x280
[  449.903002][ T4217]  ? __mutex_unlock_slowpath+0x1b0/0x6c0
[  449.908676][ T4217]  ? mark_lock+0x94/0x320
[  449.913263][ T4217]  ? mutex_unlock+0x10/0x10
[  449.917858][ T4217]  ? lockdep_hardirqs_on_prepare+0x409/0x770
[  449.924796][ T4217]  ? lock_chain_count+0x20/0x20
[  449.930216][ T4217]  ? __rwlock_init+0x140/0x140
[  449.935367][ T4217]  hci_event_packet+0xe48/0x1370
[  449.940808][ T4217]  ? lockdep_hardirqs_on+0x94/0x140
[  449.946144][ T4217]  ? rcu_lock_release+0x20/0x20
[  449.951669][ T4217]  ? hci_send_to_monitor+0x9c/0x4a0
[  449.957129][ T4217]  hci_rx_work+0x255/0xa10
[  449.961835][ T4217]  process_one_work+0x85f/0x1010
[  449.967232][ T4217]  ? worker_detach_from_pool+0x240/0x240
[  449.973172][ T4217]  ? lockdep_hardirqs_off+0x70/0x100
[  449.978550][ T4217]  ? _raw_spin_lock_irq+0xb7/0xf0
[  449.983721][ T4217]  ? _raw_spin_lock_irqsave+0x100/0x100
[  449.989480][ T4217]  ? wq_worker_running+0x97/0x170
[  449.994712][ T4217]  worker_thread+0xaa6/0x1290
[  449.999489][ T4217]  kthread+0x436/0x520
the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed
executing program
[  450.003554][ T4217]  ? rcu_lock_release+0x20/0x20
[  450.008561][ T4217]  ? kthread_blkcg+0xd0/0xd0
[  450.013134][ T4217]  ret_from_fork+0x1f/0x30
[  450.017638][ T4217]  </TASK>
[  450.021353][ T4217] kobject_add_internal failed for hci0:201 with -EEXIST, don't try to register things with the same name in the same directory.
[  450.042149][ T4217] Bluetooth: hci0: failed to register connection device
[  450.060440][  T147] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci0/hci0:201'
[  450.071496][  T147] CPU: 1 PID: 147 Comm: kworker/u5:0 Not tainted syzkaller #0
[  450.081202][  T147] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  450.094087][  T147] Workqueue: hci0 hci_rx_work
[  450.100004][  T147] Call Trace:
[  450.104567][  T147]  <TASK>
[  450.108014][  T147]  dump_stack_lvl+0x188/0x250
[  450.114454][  T147]  ? show_regs_print_info+0x20/0x20
[  450.120359][  T147]  ? load_image+0x400/0x400
[  450.125833][  T147]  sysfs_create_dir_ns+0x26a/0x290
[  450.131191][  T147]  ? sysfs_warn_dup+0xa0/0xa0
[  450.136201][  T147]  ? process_one_work+0x85f/0x1010
[  450.141755][  T147]  ? do_raw_spin_unlock+0x11d/0x230
[  450.147080][  T147]  kobject_add_internal+0x6e0/0xd90
[  450.152486][  T147]  kobject_add+0x160/0x230
[  450.157113][  T147]  ? kobject_init+0x1d0/0x1d0
[  450.161961][  T147]  ? klist_children_get+0x50/0x50
[  450.167142][  T147]  ? get_device_parent+0x121/0x3f0
[  450.172243][  T147]  device_add+0x483/0xfb0
[  450.176906][  T147]  hci_conn_add_sysfs+0xd1/0x1e0
[  450.182106][  T147]  le_conn_complete_evt+0xc48/0x15c0
[  450.187392][  T147]  ? cs_le_create_conn+0x5e0/0x5e0
[  450.192593][  T147]  ? __mutex_trylock_common+0x155/0x260
[  450.198211][  T147]  hci_le_meta_evt+0x285/0x3c90
[  450.203213][  T147]  ? hci_event_packet+0x37b/0x1370
[  450.208765][  T147]  ? __lock_acquire+0x7d10/0x7d10
[  450.214386][  T147]  ? hci_remote_host_features_evt+0x280/0x280
[  450.220634][  T147]  ? __mutex_unlock_slowpath+0x1b0/0x6c0
[  450.226364][  T147]  ? mark_lock+0x94/0x320
[  450.231133][  T147]  ? mutex_unlock+0x10/0x10
[  450.236128][  T147]  ? lockdep_hardirqs_on_prepare+0x409/0x770
[  450.242656][  T147]  ? lock_chain_count+0x20/0x20
[  450.247509][  T147]  ? __rwlock_init+0x140/0x140
[  450.252596][  T147]  hci_event_packet+0xe48/0x1370
[  450.257906][  T147]  ? lockdep_hardirqs_on+0x94/0x140
[  450.263280][  T147]  ? rcu_lock_release+0x20/0x20
[  450.268921][  T147]  ? hci_send_to_monitor+0x9c/0x4a0
[  450.274640][  T147]  hci_rx_work+0x255/0xa10
[  450.279163][  T147]  process_one_work+0x85f/0x1010
[  450.284424][  T147]  ? worker_detach_from_pool+0x240/0x240
[  450.290437][  T147]  ? lockdep_hardirqs_off+0x70/0x100
[  450.296240][  T147]  ? _raw_spin_lock_irq+0xb7/0xf0
[  450.301653][  T147]  ? _raw_spin_lock_irqsave+0x100/0x100
the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed
executing program
[  450.307697][  T147]  ? wq_worker_running+0x97/0x170
[  450.313022][  T147]  worker_thread+0xaa6/0x1290
[  450.317807][  T147]  kthread+0x436/0x520
[  450.321952][  T147]  ? rcu_lock_release+0x20/0x20
[  450.326801][  T147]  ? kthread_blkcg+0xd0/0xd0
[  450.331553][  T147]  ret_from_fork+0x1f/0x30
[  450.335961][  T147]  </TASK>
[  450.339868][  T147] kobject_add_internal failed for hci0:201 with -EEXIST, don't try to register things with the same name in the same directory.
[  450.353959][  T147] Bluetooth: hci0: failed to register connection device
[  450.369784][ T4217] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci0/hci0:201'
[  450.379852][ T4217] CPU: 0 PID: 4217 Comm: kworker/u5:1 Not tainted syzkaller #0
[  450.387569][ T4217] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  450.397714][ T4217] Workqueue: hci0 hci_rx_work
[  450.402608][ T4217] Call Trace:
[  450.406135][ T4217]  <TASK>
[  450.409176][ T4217]  dump_stack_lvl+0x188/0x250
[  450.414599][ T4217]  ? show_regs_print_info+0x20/0x20
[  450.420049][ T4217]  ? load_image+0x400/0x400
[  450.424700][ T4217]  sysfs_create_dir_ns+0x26a/0x290
[  450.429832][ T4217]  ? sysfs_warn_dup+0xa0/0xa0
[  450.434518][ T4217]  ? process_one_work+0x85f/0x1010
[  450.439727][ T4217]  ? do_raw_spin_unlock+0x11d/0x230
[  450.444929][ T4217]  kobject_add_internal+0x6e0/0xd90
[  450.450311][ T4217]  kobject_add+0x160/0x230
[  450.454741][ T4217]  ? kobject_init+0x1d0/0x1d0
[  450.459696][ T4217]  ? klist_children_get+0x50/0x50
[  450.465262][ T4217]  ? get_device_parent+0x121/0x3f0
[  450.470735][ T4217]  device_add+0x483/0xfb0
[  450.475315][ T4217]  hci_conn_add_sysfs+0xd1/0x1e0
[  450.480341][ T4217]  le_conn_complete_evt+0xc48/0x15c0
[  450.485927][ T4217]  ? cs_le_create_conn+0x5e0/0x5e0
[  450.491216][ T4217]  ? __mutex_trylock_common+0x155/0x260
[  450.496848][ T4217]  hci_le_meta_evt+0x285/0x3c90
[  450.501845][ T4217]  ? hci_event_packet+0x37b/0x1370
[  450.507062][ T4217]  ? __lock_acquire+0x7d10/0x7d10
[  450.512185][ T4217]  ? hci_remote_host_features_evt+0x280/0x280
[  450.518460][ T4217]  ? __mutex_unlock_slowpath+0x1b0/0x6c0
[  450.524204][ T4217]  ? mark_lock+0x94/0x320
[  450.528536][ T4217]  ? mutex_unlock+0x10/0x10
[  450.533245][ T4217]  ? lockdep_hardirqs_on_prepare+0x409/0x770
[  450.539314][ T4217]  ? lock_chain_count+0x20/0x20
[  450.544274][ T4217]  ? __rwlock_init+0x140/0x140
[  450.549051][ T4217]  hci_event_packet+0xe48/0x1370
[  450.554122][ T4217]  ? lockdep_hardirqs_on+0x94/0x140
[  450.559406][ T4217]  ? rcu_lock_release+0x20/0x20
[  450.564263][ T4217]  ? hci_send_to_monitor+0x9c/0x4a0
[  450.569872][ T4217]  hci_rx_work+0x255/0xa10
[  450.574300][ T4217]  process_one_work+0x85f/0x1010
[  450.579337][ T4217]  ? worker_detach_from_pool+0x240/0x240
[  450.585132][ T4217]  ? lockdep_hardirqs_off+0x70/0x100
[  450.590610][ T4217]  ? _raw_spin_lock_irq+0xb7/0xf0
[  450.595990][ T4217]  ? _raw_spin_lock_irqsave+0x100/0x100
[  450.601542][ T4217]  ? wq_worker_running+0x97/0x170
[  450.606562][ T4217]  worker_thread+0xaa6/0x1290
[  450.611256][ T4217]  kthread+0x436/0x520
[  450.615736][ T4217]  ? rcu_lock_release+0x20/0x20
the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed
executing program
[  450.620667][ T4217]  ? kthread_blkcg+0xd0/0xd0
[  450.625359][ T4217]  ret_from_fork+0x1f/0x30
[  450.629967][ T4217]  </TASK>
[  450.639320][ T4217] kobject_add_internal failed for hci0:201 with -EEXIST, don't try to register things with the same name in the same directory.
[  450.653349][ T4217] Bluetooth: hci0: failed to register connection device
[  450.671103][ T4217] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci0/hci0:201'
[  450.681216][ T4217] CPU: 1 PID: 4217 Comm: kworker/u5:1 Not tainted syzkaller #0
[  450.689220][ T4217] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  450.699887][ T4217] Workqueue: hci0 hci_rx_work
[  450.704578][ T4217] Call Trace:
[  450.707856][ T4217]  <TASK>
[  450.710768][ T4217]  dump_stack_lvl+0x188/0x250
[  450.715526][ T4217]  ? show_regs_print_info+0x20/0x20
[  450.720886][ T4217]  ? load_image+0x400/0x400
[  450.725879][ T4217]  sysfs_create_dir_ns+0x26a/0x290
[  450.731430][ T4217]  ? sysfs_warn_dup+0xa0/0xa0
[  450.736489][ T4217]  ? process_one_work+0x85f/0x1010
[  450.741596][ T4217]  ? do_raw_spin_unlock+0x11d/0x230
[  450.746794][ T4217]  kobject_add_internal+0x6e0/0xd90
[  450.752016][ T4217]  kobject_add+0x160/0x230
[  450.756422][ T4217]  ? kobject_init+0x1d0/0x1d0
[  450.761261][ T4217]  ? klist_children_get+0x50/0x50
[  450.766268][ T4217]  ? get_device_parent+0x121/0x3f0
[  450.771377][ T4217]  device_add+0x483/0xfb0
[  450.775879][ T4217]  hci_conn_add_sysfs+0xd1/0x1e0
[  450.780844][ T4217]  le_conn_complete_evt+0xc48/0x15c0
[  450.786257][ T4217]  ? cs_le_create_conn+0x5e0/0x5e0
[  450.791705][ T4217]  ? __mutex_trylock_common+0x155/0x260
[  450.797282][ T4217]  hci_le_meta_evt+0x285/0x3c90
[  450.802330][ T4217]  ? hci_event_packet+0x37b/0x1370
[  450.808137][ T4217]  ? __lock_acquire+0x7d10/0x7d10
[  450.813679][ T4217]  ? hci_remote_host_features_evt+0x280/0x280
[  450.819988][ T4217]  ? __mutex_unlock_slowpath+0x1b0/0x6c0
[  450.825777][ T4217]  ? mark_lock+0x94/0x320
[  450.830184][ T4217]  ? mutex_unlock+0x10/0x10
[  450.834671][ T4217]  ? lockdep_hardirqs_on_prepare+0x409/0x770
[  450.840840][ T4217]  ? lock_chain_count+0x20/0x20
[  450.845951][ T4217]  ? __rwlock_init+0x140/0x140
[  450.850884][ T4217]  hci_event_packet+0xe48/0x1370
[  450.855909][ T4217]  ? lockdep_hardirqs_on+0x94/0x140
[  450.861099][ T4217]  ? rcu_lock_release+0x20/0x20
[  450.866116][ T4217]  ? hci_send_to_monitor+0x9c/0x4a0
[  450.871457][ T4217]  hci_rx_work+0x255/0xa10
[  450.875949][ T4217]  process_one_work+0x85f/0x1010
[  450.880998][ T4217]  ? worker_detach_from_pool+0x240/0x240
[  450.886796][ T4217]  ? lockdep_hardirqs_off+0x70/0x100
[  450.892246][ T4217]  ? _raw_spin_lock_irq+0xb7/0xf0
[  450.897349][ T4217]  ? _raw_spin_lock_irqsave+0x100/0x100
[  450.903317][ T4217]  ? wq_worker_running+0x97/0x170
[  450.908343][ T4217]  worker_thread+0xaa6/0x1290
[  450.913047][ T4217]  kthread+0x436/0x520
[  450.917107][ T4217]  ? rcu_lock_release+0x20/0x20
the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed
executing program
[  450.921941][ T4217]  ? kthread_blkcg+0xd0/0xd0
[  450.926595][ T4217]  ret_from_fork+0x1f/0x30
[  450.931205][ T4217]  </TASK>
[  450.935115][ T4217] kobject_add_internal failed for hci0:201 with -EEXIST, don't try to register things with the same name in the same directory.
[  450.948703][ T4217] Bluetooth: hci0: failed to register connection device
[  450.969014][ T4217] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci0/hci0:201'
[  450.978878][ T4217] CPU: 0 PID: 4217 Comm: kworker/u5:1 Not tainted syzkaller #0
[  450.986608][ T4217] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  450.997061][ T4217] Workqueue: hci0 hci_rx_work
[  451.001821][ T4217] Call Trace:
[  451.005313][ T4217]  <TASK>
[  451.008234][ T4217]  dump_stack_lvl+0x188/0x250
[  451.012896][ T4217]  ? show_regs_print_info+0x20/0x20
[  451.018191][ T4217]  ? load_image+0x400/0x400
[  451.022683][ T4217]  sysfs_create_dir_ns+0x26a/0x290
[  451.027775][ T4217]  ? sysfs_warn_dup+0xa0/0xa0
[  451.032522][ T4217]  ? process_one_work+0x85f/0x1010
[  451.037613][ T4217]  ? do_raw_spin_unlock+0x11d/0x230
[  451.042802][ T4217]  kobject_add_internal+0x6e0/0xd90
[  451.047989][ T4217]  kobject_add+0x160/0x230
[  451.052476][ T4217]  ? kobject_init+0x1d0/0x1d0
[  451.057154][ T4217]  ? klist_children_get+0x50/0x50
[  451.062156][ T4217]  ? get_device_parent+0x121/0x3f0
[  451.067419][ T4217]  device_add+0x483/0xfb0
[  451.071849][ T4217]  hci_conn_add_sysfs+0xd1/0x1e0
[  451.076787][ T4217]  le_conn_complete_evt+0xc48/0x15c0
[  451.082157][ T4217]  ? cs_le_create_conn+0x5e0/0x5e0
[  451.087273][ T4217]  ? __mutex_trylock_common+0x155/0x260
[  451.092919][ T4217]  hci_le_meta_evt+0x285/0x3c90
[  451.097768][ T4217]  ? hci_event_packet+0x37b/0x1370
[  451.103002][ T4217]  ? __lock_acquire+0x7d10/0x7d10
[  451.108291][ T4217]  ? hci_remote_host_features_evt+0x280/0x280
[  451.114546][ T4217]  ? __mutex_unlock_slowpath+0x1b0/0x6c0
[  451.120272][ T4217]  ? mark_lock+0x94/0x320
[  451.124590][ T4217]  ? mutex_unlock+0x10/0x10
[  451.129133][ T4217]  ? lockdep_hardirqs_on_prepare+0x409/0x770
[  451.135111][ T4217]  ? lock_chain_count+0x20/0x20
[  451.139950][ T4217]  ? __rwlock_init+0x140/0x140
[  451.144712][ T4217]  hci_event_packet+0xe48/0x1370
[  451.149748][ T4217]  ? lockdep_hardirqs_on+0x94/0x140
[  451.155120][ T4217]  ? rcu_lock_release+0x20/0x20
[  451.160061][ T4217]  ? hci_send_to_monitor+0x9c/0x4a0
[  451.165686][ T4217]  hci_rx_work+0x255/0xa10
[  451.170353][ T4217]  process_one_work+0x85f/0x1010
[  451.175285][ T4217]  ? worker_detach_from_pool+0x240/0x240
[  451.180902][ T4217]  ? lockdep_hardirqs_off+0x70/0x100
[  451.186177][ T4217]  ? _raw_spin_lock_irq+0xb7/0xf0
[  451.191205][ T4217]  ? _raw_spin_lock_irqsave+0x100/0x100
[  451.196846][ T4217]  ? wq_worker_running+0x97/0x170
[  451.202048][ T4217]  worker_thread+0xaa6/0x1290
[  451.206903][ T4217]  kthread+0x436/0x520
[  451.211042][ T4217]  ? rcu_lock_release+0x20/0x20
[  451.215873][ T4217]  ? kthread_blkcg+0xd0/0xd0
the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed
executing program
[  451.220448][ T4217]  ret_from_fork+0x1f/0x30
[  451.224855][ T4217]  </TASK>
[  451.228342][ T4217] kobject_add_internal failed for hci0:201 with -EEXIST, don't try to register things with the same name in the same directory.
[  451.242269][ T4217] Bluetooth: hci0: failed to register connection device
[  451.255267][  T147] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci0/hci0:201'
[  451.264823][  T147] CPU: 1 PID: 147 Comm: kworker/u5:0 Not tainted syzkaller #0
[  451.272396][  T147] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  451.282524][  T147] Workqueue: hci0 hci_rx_work
[  451.287192][  T147] Call Trace:
[  451.290455][  T147]  <TASK>
[  451.293371][  T147]  dump_stack_lvl+0x188/0x250
[  451.298036][  T147]  ? show_regs_print_info+0x20/0x20
[  451.303425][  T147]  ? load_image+0x400/0x400
[  451.308030][  T147]  sysfs_create_dir_ns+0x26a/0x290
[  451.313213][  T147]  ? sysfs_warn_dup+0xa0/0xa0
[  451.317993][  T147]  ? process_one_work+0x85f/0x1010
[  451.323099][  T147]  ? do_raw_spin_unlock+0x11d/0x230
[  451.328542][  T147]  kobject_add_internal+0x6e0/0xd90
[  451.333966][  T147]  kobject_add+0x160/0x230
[  451.338407][  T147]  ? kobject_init+0x1d0/0x1d0
[  451.343168][  T147]  ? klist_children_get+0x50/0x50
[  451.348176][  T147]  ? get_device_parent+0x121/0x3f0
[  451.353357][  T147]  device_add+0x483/0xfb0
[  451.358009][  T147]  hci_conn_add_sysfs+0xd1/0x1e0
[  451.363023][  T147]  le_conn_complete_evt+0xc48/0x15c0
[  451.368305][  T147]  ? cs_le_create_conn+0x5e0/0x5e0
[  451.373413][  T147]  ? __mutex_trylock_common+0x155/0x260
[  451.379043][  T147]  hci_le_meta_evt+0x285/0x3c90
[  451.383887][  T147]  ? hci_event_packet+0x37b/0x1370
[  451.389268][  T147]  ? __lock_acquire+0x7d10/0x7d10
[  451.394391][  T147]  ? hci_remote_host_features_evt+0x280/0x280
[  451.400558][  T147]  ? __mutex_unlock_slowpath+0x1b0/0x6c0
[  451.406197][  T147]  ? mark_lock+0x94/0x320
[  451.410523][  T147]  ? mutex_unlock+0x10/0x10
[  451.415184][  T147]  ? lockdep_hardirqs_on_prepare+0x409/0x770
[  451.421506][  T147]  ? lock_chain_count+0x20/0x20
[  451.426655][  T147]  ? __rwlock_init+0x140/0x140
[  451.432205][  T147]  hci_event_packet+0xe48/0x1370
[  451.437560][  T147]  ? lockdep_hardirqs_on+0x94/0x140
[  451.443588][  T147]  ? rcu_lock_release+0x20/0x20
[  451.448536][  T147]  ? hci_send_to_monitor+0x9c/0x4a0
[  451.453821][  T147]  hci_rx_work+0x255/0xa10
[  451.458235][  T147]  process_one_work+0x85f/0x1010
[  451.463164][  T147]  ? worker_detach_from_pool+0x240/0x240
[  451.468786][  T147]  ? lockdep_hardirqs_off+0x70/0x100
[  451.474146][  T147]  ? _raw_spin_lock_irq+0xb7/0xf0
[  451.479165][  T147]  ? _raw_spin_lock_irqsave+0x100/0x100
[  451.484868][  T147]  ? wq_worker_running+0x97/0x170
[  451.490434][  T147]  worker_thread+0xaa6/0x1290
[  451.495260][  T147]  kthread+0x436/0x520
[  451.499546][  T147]  ? rcu_lock_release+0x20/0x20
[  451.504386][  T147]  ? kthread_blkcg+0xd0/0xd0
[  451.508977][  T147]  ret_from_fork+0x1f/0x30
[  451.513389][  T147]  </TASK>
the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed
executing program
[  451.518245][  T147] kobject_add_internal failed for hci0:201 with -EEXIST, don't try to register things with the same name in the same directory.
[  451.531630][  T147] Bluetooth: hci0: failed to register connection device
[  451.549258][  T147] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci0/hci0:201'
[  451.559054][  T147] CPU: 1 PID: 147 Comm: kworker/u5:0 Not tainted syzkaller #0
[  451.566613][  T147] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  451.576674][  T147] Workqueue: hci0 hci_rx_work
[  451.581398][  T147] Call Trace:
[  451.584669][  T147]  <TASK>
[  451.587589][  T147]  dump_stack_lvl+0x188/0x250
[  451.592252][  T147]  ? show_regs_print_info+0x20/0x20
[  451.597606][  T147]  ? load_image+0x400/0x400
[  451.602094][  T147]  sysfs_create_dir_ns+0x26a/0x290
[  451.607297][  T147]  ? sysfs_warn_dup+0xa0/0xa0
[  451.612058][  T147]  ? process_one_work+0x85f/0x1010
[  451.617389][  T147]  ? do_raw_spin_unlock+0x11d/0x230
[  451.623332][  T147]  kobject_add_internal+0x6e0/0xd90
[  451.629058][  T147]  kobject_add+0x160/0x230
[  451.633835][  T147]  ? kobject_init+0x1d0/0x1d0
[  451.638684][  T147]  ? klist_children_get+0x50/0x50
[  451.644040][  T147]  ? get_device_parent+0x121/0x3f0
[  451.649574][  T147]  device_add+0x483/0xfb0
[  451.654010][  T147]  hci_conn_add_sysfs+0xd1/0x1e0
[  451.659265][  T147]  le_conn_complete_evt+0xc48/0x15c0
[  451.664672][  T147]  ? cs_le_create_conn+0x5e0/0x5e0
[  451.669803][  T147]  ? __mutex_trylock_common+0x155/0x260
[  451.675441][  T147]  hci_le_meta_evt+0x285/0x3c90
[  451.680410][  T147]  ? hci_event_packet+0x37b/0x1370
[  451.685710][  T147]  ? __lock_acquire+0x7d10/0x7d10
[  451.690742][  T147]  ? hci_remote_host_features_evt+0x280/0x280
[  451.697175][  T147]  ? __mutex_unlock_slowpath+0x1b0/0x6c0
[  451.702808][  T147]  ? mark_lock+0x94/0x320
[  451.707128][  T147]  ? mutex_unlock+0x10/0x10
[  451.711612][  T147]  ? lockdep_hardirqs_on_prepare+0x409/0x770
[  451.717585][  T147]  ? lock_chain_count+0x20/0x20
[  451.722543][  T147]  ? __rwlock_init+0x140/0x140
[  451.727776][  T147]  hci_event_packet+0xe48/0x1370
[  451.732801][  T147]  ? lockdep_hardirqs_on+0x94/0x140
[  451.738079][  T147]  ? rcu_lock_release+0x20/0x20
[  451.743087][  T147]  ? hci_send_to_monitor+0x9c/0x4a0
[  451.748278][  T147]  hci_rx_work+0x255/0xa10
[  451.752781][  T147]  process_one_work+0x85f/0x1010
[  451.757727][  T147]  ? worker_detach_from_pool+0x240/0x240
[  451.763351][  T147]  ? lockdep_hardirqs_off+0x70/0x100
[  451.768633][  T147]  ? _raw_spin_lock_irq+0xb7/0xf0
[  451.773843][  T147]  ? _raw_spin_lock_irqsave+0x100/0x100
[  451.779386][  T147]  ? wq_worker_running+0x97/0x170
[  451.781998][   T13] Bluetooth: hci0: command 0x041b tx timeout
[  451.784620][  T147]  worker_thread+0xaa6/0x1290
[  451.795302][  T147]  kthread+0x436/0x520
[  451.799397][  T147]  ? rcu_lock_release+0x20/0x20
[  451.804426][  T147]  ? kthread_blkcg+0xd0/0xd0
[  451.809178][  T147]  ret_from_fork+0x1f/0x30
[  451.813583][  T147]  </TASK>
the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed
executing program
[  451.817207][  T147] kobject_add_internal failed for hci0:201 with -EEXIST, don't try to register things with the same name in the same directory.
[  451.830960][  T147] Bluetooth: hci0: failed to register connection device
[  451.843897][  T147] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci0/hci0:201'
[  451.853420][  T147] CPU: 1 PID: 147 Comm: kworker/u5:0 Not tainted syzkaller #0
[  451.861183][  T147] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  451.871268][  T147] Workqueue: hci0 hci_rx_work
[  451.876047][  T147] Call Trace:
[  451.879397][  T147]  <TASK>
[  451.882342][  T147]  dump_stack_lvl+0x188/0x250
[  451.887239][  T147]  ? show_regs_print_info+0x20/0x20
[  451.892703][  T147]  ? load_image+0x400/0x400
[  451.897337][  T147]  sysfs_create_dir_ns+0x26a/0x290
[  451.902660][  T147]  ? sysfs_warn_dup+0xa0/0xa0
[  451.907421][  T147]  ? process_one_work+0x85f/0x1010
[  451.912539][  T147]  ? do_raw_spin_unlock+0x11d/0x230
[  451.917998][  T147]  kobject_add_internal+0x6e0/0xd90
[  451.923435][  T147]  kobject_add+0x160/0x230
[  451.927849][  T147]  ? kobject_init+0x1d0/0x1d0
[  451.932610][  T147]  ? klist_children_get+0x50/0x50
[  451.937722][  T147]  ? get_device_parent+0x121/0x3f0
[  451.942917][  T147]  device_add+0x483/0xfb0
[  451.947326][  T147]  hci_conn_add_sysfs+0xd1/0x1e0
[  451.952346][  T147]  le_conn_complete_evt+0xc48/0x15c0
[  451.957707][  T147]  ? cs_le_create_conn+0x5e0/0x5e0
[  451.963042][  T147]  ? __mutex_trylock_common+0x155/0x260
[  451.969162][  T147]  hci_le_meta_evt+0x285/0x3c90
[  451.974189][  T147]  ? hci_event_packet+0x37b/0x1370
[  451.979560][  T147]  ? __lock_acquire+0x7d10/0x7d10
[  451.984726][  T147]  ? hci_remote_host_features_evt+0x280/0x280
[  451.990798][  T147]  ? __mutex_unlock_slowpath+0x1b0/0x6c0
[  451.996972][  T147]  ? mark_lock+0x94/0x320
[  452.001409][  T147]  ? mutex_unlock+0x10/0x10
[  452.005995][  T147]  ? lockdep_hardirqs_on_prepare+0x409/0x770
[  452.012235][  T147]  ? lock_chain_count+0x20/0x20
[  452.017308][  T147]  ? __rwlock_init+0x140/0x140
[  452.022079][  T147]  hci_event_packet+0xe48/0x1370
[  452.027272][  T147]  ? lockdep_hardirqs_on+0x94/0x140
[  452.032905][  T147]  ? rcu_lock_release+0x20/0x20
[  452.037922][  T147]  ? hci_send_to_monitor+0x9c/0x4a0
[  452.043383][  T147]  hci_rx_work+0x255/0xa10
[  452.048367][  T147]  process_one_work+0x85f/0x1010
[  452.054051][  T147]  ? worker_detach_from_pool+0x240/0x240
[  452.059888][  T147]  ? lockdep_hardirqs_off+0x70/0x100
[  452.065265][  T147]  ? _raw_spin_lock_irq+0xb7/0xf0
[  452.070292][  T147]  ? _raw_spin_lock_irqsave+0x100/0x100
[  452.076019][  T147]  ? wq_worker_running+0x97/0x170
[  452.081206][  T147]  worker_thread+0xaa6/0x1290
[  452.085991][  T147]  kthread+0x436/0x520
[  452.090218][  T147]  ? rcu_lock_release+0x20/0x20
[  452.095142][  T147]  ? kthread_blkcg+0xd0/0xd0
[  452.099918][  T147]  ret_from_fork+0x1f/0x30
[  452.104344][  T147]  </TASK>
[  452.108156][  T147] kobject_add_internal failed for hci0:201 with -EEXIST, don't try to register things with the same name in the same directory.
[  452.121620][  T147] Bluetooth: hci0: failed to register connection device
the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed
executing program
[  452.135125][  T147] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci0/hci0:201'
[  452.145090][  T147] CPU: 1 PID: 147 Comm: kworker/u5:0 Not tainted syzkaller #0
[  452.152667][  T147] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  452.163060][  T147] Workqueue: hci0 hci_rx_work
[  452.167820][  T147] Call Trace:
[  452.171095][  T147]  <TASK>
[  452.174014][  T147]  dump_stack_lvl+0x188/0x250
[  452.178915][  T147]  ? show_regs_print_info+0x20/0x20
[  452.184346][  T147]  ? load_image+0x400/0x400
[  452.188866][  T147]  sysfs_create_dir_ns+0x26a/0x290
[  452.194056][  T147]  ? sysfs_warn_dup+0xa0/0xa0
[  452.198919][  T147]  ? process_one_work+0x85f/0x1010
[  452.204222][  T147]  ? do_raw_spin_unlock+0x11d/0x230
[  452.209480][  T147]  kobject_add_internal+0x6e0/0xd90
[  452.214766][  T147]  kobject_add+0x160/0x230
[  452.219193][  T147]  ? kobject_init+0x1d0/0x1d0
[  452.223872][  T147]  ? klist_children_get+0x50/0x50
[  452.228887][  T147]  ? get_device_parent+0x121/0x3f0
[  452.234166][  T147]  device_add+0x483/0xfb0
[  452.238754][  T147]  hci_conn_add_sysfs+0xd1/0x1e0
[  452.243790][  T147]  le_conn_complete_evt+0xc48/0x15c0
[  452.249206][  T147]  ? cs_le_create_conn+0x5e0/0x5e0
[  452.254742][  T147]  ? __mutex_trylock_common+0x155/0x260
[  452.261225][  T147]  hci_le_meta_evt+0x285/0x3c90
[  452.266363][  T147]  ? hci_event_packet+0x37b/0x1370
[  452.271880][  T147]  ? __lock_acquire+0x7d10/0x7d10
[  452.277103][  T147]  ? hci_remote_host_features_evt+0x280/0x280
[  452.283443][  T147]  ? __mutex_unlock_slowpath+0x1b0/0x6c0
[  452.289162][  T147]  ? mark_lock+0x94/0x320
[  452.293587][  T147]  ? mutex_unlock+0x10/0x10
[  452.298192][  T147]  ? lockdep_hardirqs_on_prepare+0x409/0x770
[  452.304464][  T147]  ? lock_chain_count+0x20/0x20
[  452.309315][  T147]  ? __rwlock_init+0x140/0x140
[  452.314336][  T147]  hci_event_packet+0xe48/0x1370
[  452.319459][  T147]  ? lockdep_hardirqs_on+0x94/0x140
[  452.324677][  T147]  ? rcu_lock_release+0x20/0x20
[  452.329522][  T147]  ? hci_send_to_monitor+0x9c/0x4a0
[  452.334802][  T147]  hci_rx_work+0x255/0xa10
[  452.339224][  T147]  process_one_work+0x85f/0x1010
[  452.344178][  T147]  ? worker_detach_from_pool+0x240/0x240
[  452.349898][  T147]  ? lockdep_hardirqs_off+0x70/0x100
[  452.355363][  T147]  ? _raw_spin_lock_irq+0xb7/0xf0
[  452.360403][  T147]  ? _raw_spin_lock_irqsave+0x100/0x100
[  452.366142][  T147]  ? wq_worker_running+0x97/0x170
[  452.371289][  T147]  worker_thread+0xaa6/0x1290
[  452.375988][  T147]  kthread+0x436/0x520
[  452.380042][  T147]  ? rcu_lock_release+0x20/0x20
the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed
executing program
[  452.385104][  T147]  ? kthread_blkcg+0xd0/0xd0
[  452.389875][  T147]  ret_from_fork+0x1f/0x30
[  452.394286][  T147]  </TASK>
[  452.398026][  T147] kobject_add_internal failed for hci0:201 with -EEXIST, don't try to register things with the same name in the same directory.
[  452.411433][  T147] Bluetooth: hci0: failed to register connection device
[  452.424993][  T147] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci0/hci0:201'
[  452.435244][  T147] CPU: 1 PID: 147 Comm: kworker/u5:0 Not tainted syzkaller #0
[  452.442972][  T147] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  452.453196][  T147] Workqueue: hci0 hci_rx_work
[  452.458160][  T147] Call Trace:
[  452.461547][  T147]  <TASK>
[  452.464554][  T147]  dump_stack_lvl+0x188/0x250
[  452.469411][  T147]  ? show_regs_print_info+0x20/0x20
[  452.474604][  T147]  ? load_image+0x400/0x400
[  452.479205][  T147]  sysfs_create_dir_ns+0x26a/0x290
[  452.485006][  T147]  ? sysfs_warn_dup+0xa0/0xa0
[  452.489854][  T147]  ? process_one_work+0x85f/0x1010
[  452.494992][  T147]  ? do_raw_spin_unlock+0x11d/0x230
[  452.500501][  T147]  kobject_add_internal+0x6e0/0xd90
[  452.505904][  T147]  kobject_add+0x160/0x230
[  452.510746][  T147]  ? kobject_init+0x1d0/0x1d0
[  452.515410][  T147]  ? klist_children_get+0x50/0x50
[  452.520718][  T147]  ? get_device_parent+0x121/0x3f0
[  452.525901][  T147]  device_add+0x483/0xfb0
[  452.530411][  T147]  hci_conn_add_sysfs+0xd1/0x1e0
[  452.535420][  T147]  le_conn_complete_evt+0xc48/0x15c0
[  452.540691][  T147]  ? cs_le_create_conn+0x5e0/0x5e0
[  452.545791][  T147]  ? __mutex_trylock_common+0x155/0x260
[  452.551396][  T147]  hci_le_meta_evt+0x285/0x3c90
[  452.556362][  T147]  ? hci_event_packet+0x37b/0x1370
[  452.561768][  T147]  ? __lock_acquire+0x7d10/0x7d10
[  452.567009][  T147]  ? hci_remote_host_features_evt+0x280/0x280
[  452.573202][  T147]  ? __mutex_unlock_slowpath+0x1b0/0x6c0
[  452.579096][  T147]  ? mark_lock+0x94/0x320
[  452.583584][  T147]  ? mutex_unlock+0x10/0x10
[  452.588091][  T147]  ? lockdep_hardirqs_on_prepare+0x409/0x770
[  452.594070][  T147]  ? lock_chain_count+0x20/0x20
[  452.598939][  T147]  ? __rwlock_init+0x140/0x140
[  452.603696][  T147]  hci_event_packet+0xe48/0x1370
[  452.608864][  T147]  ? lockdep_hardirqs_on+0x94/0x140
[  452.614141][  T147]  ? rcu_lock_release+0x20/0x20
[  452.618980][  T147]  ? hci_send_to_monitor+0x9c/0x4a0
[  452.624450][  T147]  hci_rx_work+0x255/0xa10
[  452.629039][  T147]  process_one_work+0x85f/0x1010
[  452.634345][  T147]  ? worker_detach_from_pool+0x240/0x240
[  452.640157][  T147]  ? lockdep_hardirqs_off+0x70/0x100
[  452.645646][  T147]  ? _raw_spin_lock_irq+0xb7/0xf0
[  452.650666][  T147]  ? _raw_spin_lock_irqsave+0x100/0x100
[  452.656461][  T147]  ? wq_worker_running+0x97/0x170
[  452.661668][  T147]  worker_thread+0xaa6/0x1290
[  452.666534][  T147]  kthread+0x436/0x520
[  452.670603][  T147]  ? rcu_lock_release+0x20/0x20
[  452.675631][  T147]  ? kthread_blkcg+0xd0/0xd0
[  452.680297][  T147]  ret_from_fork+0x1f/0x30
the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed
executing program
[  452.684968][  T147]  </TASK>
[  452.689683][  T147] kobject_add_internal failed for hci0:201 with -EEXIST, don't try to register things with the same name in the same directory.
[  452.703693][  T147] Bluetooth: hci0: failed to register connection device
[  452.716506][  T147] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci0/hci0:201'
[  452.726501][  T147] CPU: 0 PID: 147 Comm: kworker/u5:0 Not tainted syzkaller #0
[  452.733977][  T147] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  452.744240][  T147] Workqueue: hci0 hci_rx_work
[  452.749269][  T147] Call Trace:
[  452.752537][  T147]  <TASK>
[  452.755606][  T147]  dump_stack_lvl+0x188/0x250
[  452.760532][  T147]  ? show_regs_print_info+0x20/0x20
[  452.765739][  T147]  ? load_image+0x400/0x400
[  452.770416][  T147]  sysfs_create_dir_ns+0x26a/0x290
[  452.775770][  T147]  ? sysfs_warn_dup+0xa0/0xa0
[  452.780435][  T147]  ? process_one_work+0x85f/0x1010
[  452.785532][  T147]  ? do_raw_spin_unlock+0x11d/0x230
[  452.790874][  T147]  kobject_add_internal+0x6e0/0xd90
[  452.796340][  T147]  kobject_add+0x160/0x230
[  452.800961][  T147]  ? kobject_init+0x1d0/0x1d0
[  452.805909][  T147]  ? klist_children_get+0x50/0x50
[  452.811210][  T147]  ? get_device_parent+0x121/0x3f0
[  452.816588][  T147]  device_add+0x483/0xfb0
[  452.821020][  T147]  hci_conn_add_sysfs+0xd1/0x1e0
[  452.826036][  T147]  le_conn_complete_evt+0xc48/0x15c0
[  452.831471][  T147]  ? cs_le_create_conn+0x5e0/0x5e0
[  452.837109][  T147]  ? __mutex_trylock_common+0x155/0x260
[  452.842655][  T147]  hci_le_meta_evt+0x285/0x3c90
[  452.847822][  T147]  ? hci_event_packet+0x37b/0x1370
[  452.852924][  T147]  ? __lock_acquire+0x7d10/0x7d10
[  452.857943][  T147]  ? hci_remote_host_features_evt+0x280/0x280
[  452.863997][  T147]  ? __mutex_unlock_slowpath+0x1b0/0x6c0
[  452.869622][  T147]  ? mark_lock+0x94/0x320
[  452.874039][  T147]  ? mutex_unlock+0x10/0x10
[  452.878609][  T147]  ? lockdep_hardirqs_on_prepare+0x409/0x770
[  452.884664][  T147]  ? lock_chain_count+0x20/0x20
[  452.889624][  T147]  ? __rwlock_init+0x140/0x140
[  452.894389][  T147]  hci_event_packet+0xe48/0x1370
[  452.899615][  T147]  ? lockdep_hardirqs_on+0x94/0x140
[  452.904824][  T147]  ? rcu_lock_release+0x20/0x20
[  452.909672][  T147]  ? hci_send_to_monitor+0x9c/0x4a0
[  452.915305][  T147]  hci_rx_work+0x255/0xa10
[  452.919791][  T147]  process_one_work+0x85f/0x1010
[  452.924724][  T147]  ? worker_detach_from_pool+0x240/0x240
[  452.930525][  T147]  ? lockdep_hardirqs_off+0x70/0x100
[  452.936051][  T147]  ? _raw_spin_lock_irq+0xb7/0xf0
[  452.941160][  T147]  ? _raw_spin_lock_irqsave+0x100/0x100
[  452.946738][  T147]  ? wq_worker_running+0x97/0x170
[  452.951748][  T147]  worker_thread+0xaa6/0x1290
[  452.956602][  T147]  kthread+0x436/0x520
[  452.960977][  T147]  ? rcu_lock_release+0x20/0x20
[  452.965932][  T147]  ? kthread_blkcg+0xd0/0xd0
[  452.970692][  T147]  ret_from_fork+0x1f/0x30
[  452.975104][  T147]  </TASK>
the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed
executing program
[  452.978627][  T147] kobject_add_internal failed for hci0:201 with -EEXIST, don't try to register things with the same name in the same directory.
[  452.992175][  T147] Bluetooth: hci0: failed to register connection device
[  453.006519][  T147] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci0/hci0:201'
[  453.016412][  T147] CPU: 0 PID: 147 Comm: kworker/u5:0 Not tainted syzkaller #0
[  453.024229][  T147] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  453.034387][  T147] Workqueue: hci0 hci_rx_work
[  453.039069][  T147] Call Trace:
[  453.042436][  T147]  <TASK>
[  453.045354][  T147]  dump_stack_lvl+0x188/0x250
[  453.050282][  T147]  ? show_regs_print_info+0x20/0x20
[  453.055727][  T147]  ? load_image+0x400/0x400
[  453.060518][  T147]  sysfs_create_dir_ns+0x26a/0x290
[  453.065632][  T147]  ? sysfs_warn_dup+0xa0/0xa0
[  453.070697][  T147]  ? process_one_work+0x85f/0x1010
[  453.075892][  T147]  ? do_raw_spin_unlock+0x11d/0x230
[  453.081075][  T147]  kobject_add_internal+0x6e0/0xd90
[  453.086343][  T147]  kobject_add+0x160/0x230
[  453.090747][  T147]  ? kobject_init+0x1d0/0x1d0
[  453.095490][  T147]  ? klist_children_get+0x50/0x50
[  453.100522][  T147]  ? get_device_parent+0x121/0x3f0
[  453.105805][  T147]  device_add+0x483/0xfb0
[  453.110158][  T147]  hci_conn_add_sysfs+0xd1/0x1e0
[  453.115080][  T147]  le_conn_complete_evt+0xc48/0x15c0
[  453.120359][  T147]  ? cs_le_create_conn+0x5e0/0x5e0
[  453.125453][  T147]  ? __mutex_trylock_common+0x155/0x260
[  453.131170][  T147]  hci_le_meta_evt+0x285/0x3c90
[  453.136112][  T147]  ? hci_event_packet+0x37b/0x1370
[  453.141311][  T147]  ? __lock_acquire+0x7d10/0x7d10
[  453.146451][  T147]  ? hci_remote_host_features_evt+0x280/0x280
[  453.152619][  T147]  ? __mutex_unlock_slowpath+0x1b0/0x6c0
[  453.158584][  T147]  ? mark_lock+0x94/0x320
[  453.163072][  T147]  ? mutex_unlock+0x10/0x10
[  453.167642][  T147]  ? lockdep_hardirqs_on_prepare+0x409/0x770
[  453.173812][  T147]  ? lock_chain_count+0x20/0x20
[  453.178753][  T147]  ? __rwlock_init+0x140/0x140
[  453.183502][  T147]  hci_event_packet+0xe48/0x1370
[  453.188682][  T147]  ? lockdep_hardirqs_on+0x94/0x140
[  453.194194][  T147]  ? rcu_lock_release+0x20/0x20
[  453.199315][  T147]  ? hci_send_to_monitor+0x9c/0x4a0
[  453.204498][  T147]  hci_rx_work+0x255/0xa10
[  453.208992][  T147]  process_one_work+0x85f/0x1010
[  453.214016][  T147]  ? worker_detach_from_pool+0x240/0x240
[  453.219634][  T147]  ? lockdep_hardirqs_off+0x70/0x100
[  453.224906][  T147]  ? _raw_spin_lock_irq+0xb7/0xf0
[  453.230000][  T147]  ? _raw_spin_lock_irqsave+0x100/0x100
the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed
executing program
[  453.235701][  T147]  ? wq_worker_running+0x97/0x170
[  453.240885][  T147]  worker_thread+0xaa6/0x1290
[  453.245553][  T147]  kthread+0x436/0x520
[  453.249686][  T147]  ? rcu_lock_release+0x20/0x20
[  453.254601][  T147]  ? kthread_blkcg+0xd0/0xd0
[  453.259189][  T147]  ret_from_fork+0x1f/0x30
[  453.263684][  T147]  </TASK>
[  453.266949][  T147] kobject_add_internal failed for hci0:201 with -EEXIST, don't try to register things with the same name in the same directory.
[  453.280534][  T147] Bluetooth: hci0: failed to register connection device
[  453.300150][  T147] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci0/hci0:201'
[  453.309748][  T147] CPU: 1 PID: 147 Comm: kworker/u5:0 Not tainted syzkaller #0
[  453.317626][  T147] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  453.327791][  T147] Workqueue: hci0 hci_rx_work
[  453.332552][  T147] Call Trace:
[  453.335928][  T147]  <TASK>
[  453.338858][  T147]  dump_stack_lvl+0x188/0x250
[  453.343811][  T147]  ? show_regs_print_info+0x20/0x20
[  453.349027][  T147]  ? load_image+0x400/0x400
[  453.353889][  T147]  sysfs_create_dir_ns+0x26a/0x290
[  453.359095][  T147]  ? sysfs_warn_dup+0xa0/0xa0
[  453.363768][  T147]  ? process_one_work+0x85f/0x1010
[  453.369248][  T147]  ? do_raw_spin_unlock+0x11d/0x230
[  453.374456][  T147]  kobject_add_internal+0x6e0/0xd90
[  453.379660][  T147]  kobject_add+0x160/0x230
[  453.384243][  T147]  ? kobject_init+0x1d0/0x1d0
[  453.388933][  T147]  ? klist_children_get+0x50/0x50
[  453.393943][  T147]  ? get_device_parent+0x121/0x3f0
[  453.399043][  T147]  device_add+0x483/0xfb0
[  453.403363][  T147]  hci_conn_add_sysfs+0xd1/0x1e0
[  453.408774][  T147]  le_conn_complete_evt+0xc48/0x15c0
[  453.414070][  T147]  ? cs_le_create_conn+0x5e0/0x5e0
[  453.419219][  T147]  ? __mutex_trylock_common+0x155/0x260
[  453.424851][  T147]  hci_le_meta_evt+0x285/0x3c90
[  453.429790][  T147]  ? hci_event_packet+0x37b/0x1370
[  453.434902][  T147]  ? __lock_acquire+0x7d10/0x7d10
[  453.440277][  T147]  ? hci_remote_host_features_evt+0x280/0x280
[  453.446512][  T147]  ? __mutex_unlock_slowpath+0x1b0/0x6c0
[  453.452245][  T147]  ? mark_lock+0x94/0x320
[  453.456757][  T147]  ? mutex_unlock+0x10/0x10
[  453.461343][  T147]  ? lockdep_hardirqs_on_prepare+0x409/0x770
[  453.467488][  T147]  ? lock_chain_count+0x20/0x20
[  453.472392][  T147]  ? __rwlock_init+0x140/0x140
[  453.477144][  T147]  hci_event_packet+0xe48/0x1370
[  453.482325][  T147]  ? lockdep_hardirqs_on+0x94/0x140
[  453.487607][  T147]  ? rcu_lock_release+0x20/0x20
[  453.492445][  T147]  ? hci_send_to_monitor+0x9c/0x4a0
[  453.497715][  T147]  hci_rx_work+0x255/0xa10
[  453.502236][  T147]  process_one_work+0x85f/0x1010
[  453.507180][  T147]  ? worker_detach_from_pool+0x240/0x240
[  453.512951][  T147]  ? lockdep_hardirqs_off+0x70/0x100
[  453.518258][  T147]  ? _raw_spin_lock_irq+0xb7/0xf0
[  453.523643][  T147]  ? _raw_spin_lock_irqsave+0x100/0x100
[  453.529534][  T147]  ? wq_worker_running+0x97/0x170
[  453.534831][  T147]  worker_thread+0xaa6/0x1290
[  453.539609][  T147]  kthread+0x436/0x520
[  453.543669][  T147]  ? rcu_lock_release+0x20/0x20
the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed
executing program
[  453.548602][  T147]  ? kthread_blkcg+0xd0/0xd0
[  453.553315][  T147]  ret_from_fork+0x1f/0x30
[  453.557826][  T147]  </TASK>
[  453.562428][  T147] kobject_add_internal failed for hci0:201 with -EEXIST, don't try to register things with the same name in the same directory.
[  453.576029][  T147] Bluetooth: hci0: failed to register connection device
[  453.597923][  T147] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci0/hci0:201'
[  453.607448][  T147] CPU: 1 PID: 147 Comm: kworker/u5:0 Not tainted syzkaller #0
[  453.614898][  T147] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  453.625374][  T147] Workqueue: hci0 hci_rx_work
[  453.630051][  T147] Call Trace:
[  453.633946][  T147]  <TASK>
[  453.637038][  T147]  dump_stack_lvl+0x188/0x250
[  453.641876][  T147]  ? show_regs_print_info+0x20/0x20
[  453.647252][  T147]  ? load_image+0x400/0x400
[  453.651878][  T147]  sysfs_create_dir_ns+0x26a/0x290
[  453.657473][  T147]  ? sysfs_warn_dup+0xa0/0xa0
[  453.662240][  T147]  ? process_one_work+0x85f/0x1010
[  453.667477][  T147]  ? do_raw_spin_unlock+0x11d/0x230
[  453.672769][  T147]  kobject_add_internal+0x6e0/0xd90
[  453.678137][  T147]  kobject_add+0x160/0x230
[  453.682554][  T147]  ? kobject_init+0x1d0/0x1d0
[  453.687213][  T147]  ? klist_children_get+0x50/0x50
[  453.692241][  T147]  ? get_device_parent+0x121/0x3f0
[  453.697392][  T147]  device_add+0x483/0xfb0
[  453.701893][  T147]  hci_conn_add_sysfs+0xd1/0x1e0
[  453.706816][  T147]  le_conn_complete_evt+0xc48/0x15c0
[  453.712096][  T147]  ? cs_le_create_conn+0x5e0/0x5e0
[  453.717398][  T147]  ? __mutex_trylock_common+0x155/0x260
[  453.723128][  T147]  hci_le_meta_evt+0x285/0x3c90
[  453.728464][  T147]  ? hci_event_packet+0x37b/0x1370
[  453.733581][  T147]  ? __lock_acquire+0x7d10/0x7d10
[  453.738597][  T147]  ? hci_remote_host_features_evt+0x280/0x280
[  453.744650][  T147]  ? __mutex_unlock_slowpath+0x1b0/0x6c0
[  453.750392][  T147]  ? mark_lock+0x94/0x320
[  453.754796][  T147]  ? mutex_unlock+0x10/0x10
[  453.759299][  T147]  ? lockdep_hardirqs_on_prepare+0x409/0x770
[  453.765404][  T147]  ? lock_chain_count+0x20/0x20
[  453.770517][  T147]  ? __rwlock_init+0x140/0x140
[  453.775309][  T147]  hci_event_packet+0xe48/0x1370
[  453.780329][  T147]  ? lockdep_hardirqs_on+0x94/0x140
[  453.785520][  T147]  ? rcu_lock_release+0x20/0x20
[  453.790360][  T147]  ? hci_send_to_monitor+0x9c/0x4a0
[  453.795658][  T147]  hci_rx_work+0x255/0xa10
[  453.800620][  T147]  process_one_work+0x85f/0x1010
[  453.805649][  T147]  ? worker_detach_from_pool+0x240/0x240
[  453.811518][  T147]  ? lockdep_hardirqs_off+0x70/0x100
[  453.817140][  T147]  ? _raw_spin_lock_irq+0xb7/0xf0
[  453.822328][  T147]  ? _raw_spin_lock_irqsave+0x100/0x100
[  453.828130][  T147]  ? wq_worker_running+0x97/0x170
[  453.833239][  T147]  worker_thread+0xaa6/0x1290
[  453.838116][  T147]  kthread+0x436/0x520
[  453.842204][  T147]  ? rcu_lock_release+0x20/0x20
[  453.847125][  T147]  ? kthread_blkcg+0xd0/0xd0
the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed
executing program
[  453.851864][  T147]  ret_from_fork+0x1f/0x30
[  453.856367][  T147]  </TASK>
[  453.860125][  T147] kobject_add_internal failed for hci0:201 with -EEXIST, don't try to register things with the same name in the same directory.
[  453.873794][  T147] Bluetooth: hci0: failed to register connection device
[  453.882415][   T13] Bluetooth: hci0: command 0x040f tx timeout
[  453.902272][  T147] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci0/hci0:201'
[  453.912462][  T147] CPU: 0 PID: 147 Comm: kworker/u5:0 Not tainted syzkaller #0
[  453.920083][  T147] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  453.930753][  T147] Workqueue: hci0 hci_rx_work
[  453.935435][  T147] Call Trace:
[  453.938700][  T147]  <TASK>
[  453.941627][  T147]  dump_stack_lvl+0x188/0x250
[  453.946294][  T147]  ? show_regs_print_info+0x20/0x20
[  453.951568][  T147]  ? load_image+0x400/0x400
[  453.956078][  T147]  sysfs_create_dir_ns+0x26a/0x290
[  453.961355][  T147]  ? sysfs_warn_dup+0xa0/0xa0
[  453.966114][  T147]  ? process_one_work+0x85f/0x1010
[  453.971247][  T147]  ? do_raw_spin_unlock+0x11d/0x230
[  453.976430][  T147]  kobject_add_internal+0x6e0/0xd90
[  453.981808][  T147]  kobject_add+0x160/0x230
[  453.986317][  T147]  ? kobject_init+0x1d0/0x1d0
[  453.991084][  T147]  ? klist_children_get+0x50/0x50
[  453.996191][  T147]  ? get_device_parent+0x121/0x3f0
[  454.001326][  T147]  device_add+0x483/0xfb0
[  454.005819][  T147]  hci_conn_add_sysfs+0xd1/0x1e0
[  454.010830][  T147]  le_conn_complete_evt+0xc48/0x15c0
[  454.016218][  T147]  ? cs_le_create_conn+0x5e0/0x5e0
[  454.021408][  T147]  ? __mutex_trylock_common+0x155/0x260
[  454.027226][  T147]  hci_le_meta_evt+0x285/0x3c90
[  454.032089][  T147]  ? hci_event_packet+0x37b/0x1370
[  454.037498][  T147]  ? __lock_acquire+0x7d10/0x7d10
[  454.042830][  T147]  ? hci_remote_host_features_evt+0x280/0x280
[  454.049615][  T147]  ? __mutex_unlock_slowpath+0x1b0/0x6c0
[  454.055328][  T147]  ? mark_lock+0x94/0x320
[  454.059673][  T147]  ? mutex_unlock+0x10/0x10
[  454.064195][  T147]  ? lockdep_hardirqs_on_prepare+0x409/0x770
[  454.070264][  T147]  ? lock_chain_count+0x20/0x20
[  454.075207][  T147]  ? __rwlock_init+0x140/0x140
[  454.079959][  T147]  hci_event_packet+0xe48/0x1370
[  454.084964][  T147]  ? lockdep_hardirqs_on+0x94/0x140
[  454.090152][  T147]  ? rcu_lock_release+0x20/0x20
[  454.095163][  T147]  ? hci_send_to_monitor+0x9c/0x4a0
[  454.100354][  T147]  hci_rx_work+0x255/0xa10
[  454.105099][  T147]  process_one_work+0x85f/0x1010
[  454.110045][  T147]  ? worker_detach_from_pool+0x240/0x240
[  454.115840][  T147]  ? lockdep_hardirqs_off+0x70/0x100
[  454.121240][  T147]  ? _raw_spin_lock_irq+0xb7/0xf0
[  454.126453][  T147]  ? _raw_spin_lock_irqsave+0x100/0x100
[  454.132636][  T147]  ? wq_worker_running+0x97/0x170
[  454.137738][  T147]  worker_thread+0xaa6/0x1290
[  454.142622][  T147]  kthread+0x436/0x520
[  454.146793][  T147]  ? rcu_lock_release+0x20/0x20
the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed
executing program
[  454.151759][  T147]  ? kthread_blkcg+0xd0/0xd0
[  454.156350][  T147]  ret_from_fork+0x1f/0x30
[  454.160769][  T147]  </TASK>
[  454.163990][  T147] kobject_add_internal failed for hci0:201 with -EEXIST, don't try to register things with the same name in the same directory.
[  454.177635][  T147] Bluetooth: hci0: failed to register connection device
[  454.190374][  T147] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci0/hci0:201'
[  454.200117][  T147] CPU: 1 PID: 147 Comm: kworker/u5:0 Not tainted syzkaller #0
[  454.207921][  T147] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  454.218671][  T147] Workqueue: hci0 hci_rx_work
[  454.223516][  T147] Call Trace:
[  454.226802][  T147]  <TASK>
[  454.229799][  T147]  dump_stack_lvl+0x188/0x250
[  454.234463][  T147]  ? show_regs_print_info+0x20/0x20
[  454.239728][  T147]  ? load_image+0x400/0x400
[  454.244305][  T147]  sysfs_create_dir_ns+0x26a/0x290
[  454.249408][  T147]  ? sysfs_warn_dup+0xa0/0xa0
[  454.254078][  T147]  ? process_one_work+0x85f/0x1010
[  454.259391][  T147]  ? do_raw_spin_unlock+0x11d/0x230
[  454.264658][  T147]  kobject_add_internal+0x6e0/0xd90
[  454.270115][  T147]  kobject_add+0x160/0x230
[  454.274745][  T147]  ? kobject_init+0x1d0/0x1d0
[  454.279413][  T147]  ? klist_children_get+0x50/0x50
[  454.284503][  T147]  ? get_device_parent+0x121/0x3f0
[  454.289598][  T147]  device_add+0x483/0xfb0
[  454.293946][  T147]  hci_conn_add_sysfs+0xd1/0x1e0
[  454.298958][  T147]  le_conn_complete_evt+0xc48/0x15c0
[  454.304340][  T147]  ? cs_le_create_conn+0x5e0/0x5e0
[  454.309754][  T147]  ? __mutex_trylock_common+0x155/0x260
[  454.315565][  T147]  hci_le_meta_evt+0x285/0x3c90
[  454.320613][  T147]  ? hci_event_packet+0x37b/0x1370
[  454.325813][  T147]  ? __lock_acquire+0x7d10/0x7d10
[  454.330826][  T147]  ? hci_remote_host_features_evt+0x280/0x280
[  454.336879][  T147]  ? __mutex_unlock_slowpath+0x1b0/0x6c0
[  454.342498][  T147]  ? mark_lock+0x94/0x320
[  454.346836][  T147]  ? mutex_unlock+0x10/0x10
[  454.351404][  T147]  ? lockdep_hardirqs_on_prepare+0x409/0x770
[  454.357547][  T147]  ? lock_chain_count+0x20/0x20
[  454.362380][  T147]  ? __rwlock_init+0x140/0x140
[  454.367167][  T147]  hci_event_packet+0xe48/0x1370
[  454.372277][  T147]  ? lockdep_hardirqs_on+0x94/0x140
[  454.377556][  T147]  ? rcu_lock_release+0x20/0x20
[  454.382492][  T147]  ? hci_send_to_monitor+0x9c/0x4a0
[  454.387760][  T147]  hci_rx_work+0x255/0xa10
[  454.392163][  T147]  process_one_work+0x85f/0x1010
[  454.397280][  T147]  ? worker_detach_from_pool+0x240/0x240
[  454.403257][  T147]  ? lockdep_hardirqs_off+0x70/0x100
[  454.408835][  T147]  ? _raw_spin_lock_irq+0xb7/0xf0
[  454.414111][  T147]  ? _raw_spin_lock_irqsave+0x100/0x100
[  454.420099][  T147]  ? wq_worker_running+0x97/0x170
[  454.425591][  T147]  worker_thread+0xaa6/0x1290
[  454.430297][  T147]  kthread+0x436/0x520
[  454.434544][  T147]  ? rcu_lock_release+0x20/0x20
[  454.439637][  T147]  ? kthread_blkcg+0xd0/0xd0
[  454.444299][  T147]  ret_from_fork+0x1f/0x30
[  454.448813][  T147]  </TASK>
the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed
executing program
[  454.453473][  T147] kobject_add_internal failed for hci0:201 with -EEXIST, don't try to register things with the same name in the same directory.
[  454.467038][  T147] Bluetooth: hci0: failed to register connection device
[  454.479484][  T147] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci0/hci0:201'
[  454.489253][  T147] CPU: 0 PID: 147 Comm: kworker/u5:0 Not tainted syzkaller #0
[  454.497054][  T147] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  454.508183][  T147] Workqueue: hci0 hci_rx_work
[  454.513030][  T147] Call Trace:
[  454.516309][  T147]  <TASK>
[  454.519244][  T147]  dump_stack_lvl+0x188/0x250
[  454.523989][  T147]  ? show_regs_print_info+0x20/0x20
[  454.529173][  T147]  ? load_image+0x400/0x400
[  454.533879][  T147]  sysfs_create_dir_ns+0x26a/0x290
[  454.539343][  T147]  ? sysfs_warn_dup+0xa0/0xa0
[  454.544095][  T147]  ? process_one_work+0x85f/0x1010
[  454.549203][  T147]  ? do_raw_spin_unlock+0x11d/0x230
[  454.554482][  T147]  kobject_add_internal+0x6e0/0xd90
[  454.559800][  T147]  kobject_add+0x160/0x230
[  454.564241][  T147]  ? kobject_init+0x1d0/0x1d0
[  454.569007][  T147]  ? klist_children_get+0x50/0x50
[  454.574128][  T147]  ? get_device_parent+0x121/0x3f0
[  454.579737][  T147]  device_add+0x483/0xfb0
[  454.584249][  T147]  hci_conn_add_sysfs+0xd1/0x1e0
[  454.589277][  T147]  le_conn_complete_evt+0xc48/0x15c0
[  454.594562][  T147]  ? cs_le_create_conn+0x5e0/0x5e0
[  454.599779][  T147]  ? __mutex_trylock_common+0x155/0x260
[  454.605515][  T147]  hci_le_meta_evt+0x285/0x3c90
[  454.610371][  T147]  ? hci_event_packet+0x37b/0x1370
[  454.615582][  T147]  ? __lock_acquire+0x7d10/0x7d10
[  454.620727][  T147]  ? hci_remote_host_features_evt+0x280/0x280
[  454.627038][  T147]  ? __mutex_unlock_slowpath+0x1b0/0x6c0
[  454.633221][  T147]  ? mark_lock+0x94/0x320
[  454.637775][  T147]  ? mutex_unlock+0x10/0x10
[  454.642511][  T147]  ? lockdep_hardirqs_on_prepare+0x409/0x770
[  454.648508][  T147]  ? lock_chain_count+0x20/0x20
[  454.653404][  T147]  ? __rwlock_init+0x140/0x140
[  454.658240][  T147]  hci_event_packet+0xe48/0x1370
[  454.663334][  T147]  ? lockdep_hardirqs_on+0x94/0x140
[  454.668625][  T147]  ? rcu_lock_release+0x20/0x20
[  454.673499][  T147]  ? hci_send_to_monitor+0x9c/0x4a0
[  454.678692][  T147]  hci_rx_work+0x255/0xa10
[  454.683415][  T147]  process_one_work+0x85f/0x1010
[  454.688364][  T147]  ? worker_detach_from_pool+0x240/0x240
[  454.694339][  T147]  ? lockdep_hardirqs_off+0x70/0x100
[  454.699750][  T147]  ? _raw_spin_lock_irq+0xb7/0xf0
[  454.704790][  T147]  ? _raw_spin_lock_irqsave+0x100/0x100
[  454.710373][  T147]  ? wq_worker_running+0x97/0x170
[  454.715417][  T147]  worker_thread+0xaa6/0x1290
[  454.720164][  T147]  kthread+0x436/0x520
[  454.724272][  T147]  ? rcu_lock_release+0x20/0x20
[  454.729504][  T147]  ? kthread_blkcg+0xd0/0xd0
[  454.734124][  T147]  ret_from_fork+0x1f/0x30
[  454.738866][  T147]  </TASK>
the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed
executing program
[  454.744597][  T147] kobject_add_internal failed for hci0:201 with -EEXIST, don't try to register things with the same name in the same directory.
[  454.758780][  T147] Bluetooth: hci0: failed to register connection device
[  454.779341][ T4217] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci0/hci0:201'
[  454.790528][ T4217] CPU: 1 PID: 4217 Comm: kworker/u5:1 Not tainted syzkaller #0
[  454.798813][ T4217] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  454.810289][ T4217] Workqueue: hci0 hci_rx_work
[  454.815264][ T4217] Call Trace:
[  454.818652][ T4217]  <TASK>
[  454.821598][ T4217]  dump_stack_lvl+0x188/0x250
[  454.826489][ T4217]  ? show_regs_print_info+0x20/0x20
[  454.831708][ T4217]  ? load_image+0x400/0x400
[  454.836513][ T4217]  sysfs_create_dir_ns+0x26a/0x290
[  454.841830][ T4217]  ? sysfs_warn_dup+0xa0/0xa0
[  454.847009][ T4217]  ? process_one_work+0x85f/0x1010
[  454.852271][ T4217]  ? do_raw_spin_unlock+0x11d/0x230
[  454.857665][ T4217]  kobject_add_internal+0x6e0/0xd90
[  454.863285][ T4217]  kobject_add+0x160/0x230
[  454.867996][ T4217]  ? kobject_init+0x1d0/0x1d0
[  454.872881][ T4217]  ? klist_children_get+0x50/0x50
[  454.878182][ T4217]  ? get_device_parent+0x121/0x3f0
[  454.883408][ T4217]  device_add+0x483/0xfb0
[  454.888024][ T4217]  hci_conn_add_sysfs+0xd1/0x1e0
[  454.893766][ T4217]  le_conn_complete_evt+0xc48/0x15c0
[  454.899465][ T4217]  ? cs_le_create_conn+0x5e0/0x5e0
[  454.905190][ T4217]  ? __mutex_trylock_common+0x155/0x260
[  454.911127][ T4217]  hci_le_meta_evt+0x285/0x3c90
[  454.916432][ T4217]  ? hci_event_packet+0x37b/0x1370
[  454.921671][ T4217]  ? __lock_acquire+0x7d10/0x7d10
[  454.926813][ T4217]  ? hci_remote_host_features_evt+0x280/0x280
[  454.933172][ T4217]  ? __mutex_unlock_slowpath+0x1b0/0x6c0
[  454.939006][ T4217]  ? mark_lock+0x94/0x320
[  454.943525][ T4217]  ? mutex_unlock+0x10/0x10
[  454.948247][ T4217]  ? lockdep_hardirqs_on_prepare+0x409/0x770
[  454.954319][ T4217]  ? lock_chain_count+0x20/0x20
[  454.959164][ T4217]  ? __rwlock_init+0x140/0x140
[  454.963968][ T4217]  hci_event_packet+0xe48/0x1370
[  454.969192][ T4217]  ? lockdep_hardirqs_on+0x94/0x140
[  454.974415][ T4217]  ? rcu_lock_release+0x20/0x20
[  454.979377][ T4217]  ? hci_send_to_monitor+0x9c/0x4a0
[  454.984678][ T4217]  hci_rx_work+0x255/0xa10
[  454.989220][ T4217]  process_one_work+0x85f/0x1010
[  454.994324][ T4217]  ? worker_detach_from_pool+0x240/0x240
[  455.000060][ T4217]  ? lockdep_hardirqs_off+0x70/0x100
[  455.005376][ T4217]  ? _raw_spin_lock_irq+0xb7/0xf0
[  455.010525][ T4217]  ? _raw_spin_lock_irqsave+0x100/0x100
[  455.016353][ T4217]  ? wq_worker_running+0x97/0x170
[  455.021398][ T4217]  worker_thread+0xaa6/0x1290
[  455.026211][ T4217]  kthread+0x436/0x520
[  455.030379][ T4217]  ? rcu_lock_release+0x20/0x20
[  455.035443][ T4217]  ? kthread_blkcg+0xd0/0xd0
[  455.040055][ T4217]  ret_from_fork+0x1f/0x30
[  455.045194][ T4217]  </TASK>
the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed
executing program
[  455.051465][ T4217] kobject_add_internal failed for hci0:201 with -EEXIST, don't try to register things with the same name in the same directory.
[  455.066523][ T4217] Bluetooth: hci0: failed to register connection device
[  455.084026][  T147] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci0/hci0:201'
[  455.094359][  T147] CPU: 0 PID: 147 Comm: kworker/u5:0 Not tainted syzkaller #0
[  455.102197][  T147] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  455.112706][  T147] Workqueue: hci0 hci_rx_work
[  455.117625][  T147] Call Trace:
[  455.121009][  T147]  <TASK>
[  455.123961][  T147]  dump_stack_lvl+0x188/0x250
[  455.128672][  T147]  ? show_regs_print_info+0x20/0x20
[  455.134147][  T147]  ? load_image+0x400/0x400
[  455.139119][  T147]  sysfs_create_dir_ns+0x26a/0x290
[  455.144816][  T147]  ? sysfs_warn_dup+0xa0/0xa0
[  455.149615][  T147]  ? process_one_work+0x85f/0x1010
[  455.154955][  T147]  ? do_raw_spin_unlock+0x11d/0x230
[  455.160265][  T147]  kobject_add_internal+0x6e0/0xd90
[  455.165755][  T147]  kobject_add+0x160/0x230
[  455.170292][  T147]  ? kobject_init+0x1d0/0x1d0
[  455.175084][  T147]  ? klist_children_get+0x50/0x50
[  455.180815][  T147]  ? get_device_parent+0x121/0x3f0
[  455.186122][  T147]  device_add+0x483/0xfb0
[  455.190742][  T147]  hci_conn_add_sysfs+0xd1/0x1e0
[  455.196062][  T147]  le_conn_complete_evt+0xc48/0x15c0
[  455.201473][  T147]  ? cs_le_create_conn+0x5e0/0x5e0
[  455.206791][  T147]  ? __mutex_trylock_common+0x155/0x260
[  455.212692][  T147]  hci_le_meta_evt+0x285/0x3c90
[  455.217554][  T147]  ? hci_event_packet+0x37b/0x1370
[  455.222876][  T147]  ? __lock_acquire+0x7d10/0x7d10
[  455.227990][  T147]  ? hci_remote_host_features_evt+0x280/0x280
[  455.234603][  T147]  ? __mutex_unlock_slowpath+0x1b0/0x6c0
[  455.240482][  T147]  ? mark_lock+0x94/0x320
[  455.245155][  T147]  ? mutex_unlock+0x10/0x10
[  455.249846][  T147]  ? lockdep_hardirqs_on_prepare+0x409/0x770
[  455.256132][  T147]  ? lock_chain_count+0x20/0x20
[  455.261255][  T147]  ? __rwlock_init+0x140/0x140
[  455.266096][  T147]  hci_event_packet+0xe48/0x1370
[  455.271114][  T147]  ? lockdep_hardirqs_on+0x94/0x140
[  455.276444][  T147]  ? rcu_lock_release+0x20/0x20
[  455.281487][  T147]  ? hci_send_to_monitor+0x9c/0x4a0
[  455.286769][  T147]  hci_rx_work+0x255/0xa10
[  455.291187][  T147]  process_one_work+0x85f/0x1010
[  455.296123][  T147]  ? worker_detach_from_pool+0x240/0x240
[  455.302018][  T147]  ? lockdep_hardirqs_off+0x70/0x100
[  455.307293][  T147]  ? _raw_spin_lock_irq+0xb7/0xf0
[  455.312396][  T147]  ? _raw_spin_lock_irqsave+0x100/0x100
[  455.317938][  T147]  ? wq_worker_running+0x97/0x170
[  455.323641][  T147]  worker_thread+0xaa6/0x1290
[  455.328422][  T147]  kthread+0x436/0x520
[  455.332495][  T147]  ? rcu_lock_release+0x20/0x20
[  455.337417][  T147]  ? kthread_blkcg+0xd0/0xd0
[  455.342382][  T147]  ret_from_fork+0x1f/0x30
[  455.346802][  T147]  </TASK>
the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed
executing program
[  455.350913][  T147] kobject_add_internal failed for hci0:201 with -EEXIST, don't try to register things with the same name in the same directory.
[  455.364467][  T147] Bluetooth: hci0: failed to register connection device
[  455.385503][ T4217] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci0/hci0:201'
[  455.395327][ T4217] CPU: 0 PID: 4217 Comm: kworker/u5:1 Not tainted syzkaller #0
[  455.403051][ T4217] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  455.413746][ T4217] Workqueue: hci0 hci_rx_work
[  455.418628][ T4217] Call Trace:
[  455.421907][ T4217]  <TASK>
[  455.424852][ T4217]  dump_stack_lvl+0x188/0x250
[  455.429860][ T4217]  ? show_regs_print_info+0x20/0x20
[  455.435242][ T4217]  ? load_image+0x400/0x400
[  455.440144][ T4217]  sysfs_create_dir_ns+0x26a/0x290
[  455.445262][ T4217]  ? sysfs_warn_dup+0xa0/0xa0
[  455.450101][ T4217]  ? process_one_work+0x85f/0x1010
[  455.455316][ T4217]  ? do_raw_spin_unlock+0x11d/0x230
[  455.460508][ T4217]  kobject_add_internal+0x6e0/0xd90
[  455.465962][ T4217]  kobject_add+0x160/0x230
[  455.470457][ T4217]  ? kobject_init+0x1d0/0x1d0
[  455.475135][ T4217]  ? klist_children_get+0x50/0x50
[  455.480145][ T4217]  ? get_device_parent+0x121/0x3f0
[  455.485248][ T4217]  device_add+0x483/0xfb0
[  455.489587][ T4217]  hci_conn_add_sysfs+0xd1/0x1e0
[  455.494601][ T4217]  le_conn_complete_evt+0xc48/0x15c0
[  455.500305][ T4217]  ? cs_le_create_conn+0x5e0/0x5e0
[  455.505846][ T4217]  ? __mutex_trylock_common+0x155/0x260
[  455.511799][ T4217]  hci_le_meta_evt+0x285/0x3c90
[  455.516838][ T4217]  ? hci_event_packet+0x37b/0x1370
[  455.522164][ T4217]  ? __lock_acquire+0x7d10/0x7d10
[  455.527313][ T4217]  ? hci_remote_host_features_evt+0x280/0x280
[  455.533553][ T4217]  ? __mutex_unlock_slowpath+0x1b0/0x6c0
[  455.539385][ T4217]  ? mark_lock+0x94/0x320
[  455.543709][ T4217]  ? mutex_unlock+0x10/0x10
[  455.548464][ T4217]  ? lockdep_hardirqs_on_prepare+0x409/0x770
[  455.554442][ T4217]  ? lock_chain_count+0x20/0x20
[  455.559376][ T4217]  ? __rwlock_init+0x140/0x140
[  455.564337][ T4217]  hci_event_packet+0xe48/0x1370
[  455.569668][ T4217]  ? lockdep_hardirqs_on+0x94/0x140
[  455.575536][ T4217]  ? rcu_lock_release+0x20/0x20
[  455.580820][ T4217]  ? hci_send_to_monitor+0x9c/0x4a0
[  455.586578][ T4217]  hci_rx_work+0x255/0xa10
[  455.592072][ T4217]  process_one_work+0x85f/0x1010
[  455.597083][ T4217]  ? worker_detach_from_pool+0x240/0x240
[  455.603078][ T4217]  ? lockdep_hardirqs_off+0x70/0x100
[  455.608660][ T4217]  ? _raw_spin_lock_irq+0xb7/0xf0
[  455.613975][ T4217]  ? _raw_spin_lock_irqsave+0x100/0x100
[  455.619827][ T4217]  ? wq_worker_running+0x97/0x170
[  455.625052][ T4217]  worker_thread+0xaa6/0x1290
[  455.630132][ T4217]  kthread+0x436/0x520
[  455.634408][ T4217]  ? rcu_lock_release+0x20/0x20
[  455.639566][ T4217]  ? kthread_blkcg+0xd0/0xd0
[  455.644362][ T4217]  ret_from_fork+0x1f/0x30
[  455.648817][ T4217]  </TASK>
the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed
executing program
[  455.654223][ T4217] kobject_add_internal failed for hci0:201 with -EEXIST, don't try to register things with the same name in the same directory.
[  455.667898][ T4217] Bluetooth: hci0: failed to register connection device
[  455.687525][  T147] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci0/hci0:201'
[  455.697183][  T147] CPU: 0 PID: 147 Comm: kworker/u5:0 Not tainted syzkaller #0
[  455.704800][  T147] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  455.715243][  T147] Workqueue: hci0 hci_rx_work
[  455.719938][  T147] Call Trace:
[  455.723240][  T147]  <TASK>
[  455.726196][  T147]  dump_stack_lvl+0x188/0x250
[  455.730894][  T147]  ? show_regs_print_info+0x20/0x20
[  455.736302][  T147]  ? load_image+0x400/0x400
[  455.740926][  T147]  sysfs_create_dir_ns+0x26a/0x290
[  455.746380][  T147]  ? sysfs_warn_dup+0xa0/0xa0
[  455.751075][  T147]  ? process_one_work+0x85f/0x1010
[  455.756211][  T147]  ? do_raw_spin_unlock+0x11d/0x230
[  455.761525][  T147]  kobject_add_internal+0x6e0/0xd90
[  455.766757][  T147]  kobject_add+0x160/0x230
[  455.771205][  T147]  ? kobject_init+0x1d0/0x1d0
[  455.776093][  T147]  ? klist_children_get+0x50/0x50
[  455.781232][  T147]  ? get_device_parent+0x121/0x3f0
[  455.786362][  T147]  device_add+0x483/0xfb0
[  455.790728][  T147]  hci_conn_add_sysfs+0xd1/0x1e0
[  455.795686][  T147]  le_conn_complete_evt+0xc48/0x15c0
[  455.801089][  T147]  ? cs_le_create_conn+0x5e0/0x5e0
[  455.806331][  T147]  ? __mutex_trylock_common+0x155/0x260
[  455.811909][  T147]  hci_le_meta_evt+0x285/0x3c90
[  455.816794][  T147]  ? hci_event_packet+0x37b/0x1370
[  455.821921][  T147]  ? __lock_acquire+0x7d10/0x7d10
[  455.827073][  T147]  ? hci_remote_host_features_evt+0x280/0x280
[  455.833168][  T147]  ? __mutex_unlock_slowpath+0x1b0/0x6c0
[  455.839090][  T147]  ? mark_lock+0x94/0x320
[  455.843714][  T147]  ? mutex_unlock+0x10/0x10
[  455.848258][  T147]  ? lockdep_hardirqs_on_prepare+0x409/0x770
[  455.854434][  T147]  ? lock_chain_count+0x20/0x20
[  455.859300][  T147]  ? __rwlock_init+0x140/0x140
[  455.864083][  T147]  hci_event_packet+0xe48/0x1370
[  455.869299][  T147]  ? lockdep_hardirqs_on+0x94/0x140
[  455.874737][  T147]  ? rcu_lock_release+0x20/0x20
[  455.879609][  T147]  ? hci_send_to_monitor+0x9c/0x4a0
[  455.884844][  T147]  hci_rx_work+0x255/0xa10
[  455.889287][  T147]  process_one_work+0x85f/0x1010
[  455.894435][  T147]  ? worker_detach_from_pool+0x240/0x240
[  455.900169][  T147]  ? lockdep_hardirqs_off+0x70/0x100
[  455.905563][  T147]  ? _raw_spin_lock_irq+0xb7/0xf0
[  455.910687][  T147]  ? _raw_spin_lock_irqsave+0x100/0x100
[  455.916397][  T147]  ? wq_worker_running+0x97/0x170
[  455.921450][  T147]  worker_thread+0xaa6/0x1290
[  455.926281][  T147]  kthread+0x436/0x520
[  455.930492][  T147]  ? rcu_lock_release+0x20/0x20
[  455.935373][  T147]  ? kthread_blkcg+0xd0/0xd0
[  455.939978][  T147]  ret_from_fork+0x1f/0x30
[  455.941871][ T4730] Bluetooth: hci0: command 0x0419 tx timeout
[  455.944521][  T147]  </TASK>
the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed
executing program
[  455.957665][  T147] kobject_add_internal failed for hci0:201 with -EEXIST, don't try to register things with the same name in the same directory.
[  455.971143][  T147] Bluetooth: hci0: failed to register connection device
[  455.988741][  T147] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci0/hci0:201'
[  455.998628][  T147] CPU: 0 PID: 147 Comm: kworker/u5:0 Not tainted syzkaller #0
[  456.006613][  T147] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  456.016767][  T147] Workqueue: hci0 hci_rx_work
[  456.021595][  T147] Call Trace:
[  456.024888][  T147]  <TASK>
[  456.028009][  T147]  dump_stack_lvl+0x188/0x250
[  456.032703][  T147]  ? show_regs_print_info+0x20/0x20
[  456.038092][  T147]  ? load_image+0x400/0x400
[  456.042718][  T147]  sysfs_create_dir_ns+0x26a/0x290
[  456.047934][  T147]  ? sysfs_warn_dup+0xa0/0xa0
[  456.052848][  T147]  ? process_one_work+0x85f/0x1010
[  456.057984][  T147]  ? do_raw_spin_unlock+0x11d/0x230
[  456.063432][  T147]  kobject_add_internal+0x6e0/0xd90
[  456.068833][  T147]  kobject_add+0x160/0x230
[  456.073353][  T147]  ? kobject_init+0x1d0/0x1d0
[  456.078115][  T147]  ? klist_children_get+0x50/0x50
[  456.083122][  T147]  ? get_device_parent+0x121/0x3f0
[  456.088488][  T147]  device_add+0x483/0xfb0
[  456.092990][  T147]  hci_conn_add_sysfs+0xd1/0x1e0
[  456.098017][  T147]  le_conn_complete_evt+0xc48/0x15c0
[  456.103304][  T147]  ? cs_le_create_conn+0x5e0/0x5e0
[  456.108662][  T147]  ? __mutex_trylock_common+0x155/0x260
[  456.114612][  T147]  hci_le_meta_evt+0x285/0x3c90
[  456.119550][  T147]  ? hci_event_packet+0x37b/0x1370
[  456.124646][  T147]  ? __lock_acquire+0x7d10/0x7d10
[  456.129858][  T147]  ? hci_remote_host_features_evt+0x280/0x280
[  456.135997][  T147]  ? __mutex_unlock_slowpath+0x1b0/0x6c0
[  456.141620][  T147]  ? mark_lock+0x94/0x320
[  456.145942][  T147]  ? mutex_unlock+0x10/0x10
[  456.150434][  T147]  ? lockdep_hardirqs_on_prepare+0x409/0x770
[  456.156624][  T147]  ? lock_chain_count+0x20/0x20
[  456.161492][  T147]  ? __rwlock_init+0x140/0x140
[  456.166284][  T147]  hci_event_packet+0xe48/0x1370
[  456.171319][  T147]  ? lockdep_hardirqs_on+0x94/0x140
[  456.176708][  T147]  ? rcu_lock_release+0x20/0x20
[  456.181672][  T147]  ? hci_send_to_monitor+0x9c/0x4a0
[  456.187072][  T147]  hci_rx_work+0x255/0xa10
[  456.191536][  T147]  process_one_work+0x85f/0x1010
[  456.196512][  T147]  ? worker_detach_from_pool+0x240/0x240
[  456.202158][  T147]  ? lockdep_hardirqs_off+0x70/0x100
[  456.207466][  T147]  ? _raw_spin_lock_irq+0xb7/0xf0
[  456.212525][  T147]  ? _raw_spin_lock_irqsave+0x100/0x100
[  456.218097][  T147]  ? wq_worker_running+0x97/0x170
[  456.223142][  T147]  worker_thread+0xaa6/0x1290
[  456.227859][  T147]  kthread+0x436/0x520
[  456.232047][  T147]  ? rcu_lock_release+0x20/0x20
[  456.236912][  T147]  ? kthread_blkcg+0xd0/0xd0
[  456.241520][  T147]  ret_from_fork+0x1f/0x30
[  456.246023][  T147]  </TASK>
[  456.249569][  T147] kobject_add_internal failed for hci0:201 with -EEXIST, don't try to register things with the same name in the same directory.
the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed
executing program
[  456.263223][  T147] Bluetooth: hci0: failed to register connection device
[  456.278498][  T147] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci0/hci0:201'
[  456.288154][  T147] CPU: 0 PID: 147 Comm: kworker/u5:0 Not tainted syzkaller #0
[  456.295831][  T147] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  456.305901][  T147] Workqueue: hci0 hci_rx_work
[  456.310685][  T147] Call Trace:
[  456.313989][  T147]  <TASK>
[  456.317218][  T147]  dump_stack_lvl+0x188/0x250
[  456.321995][  T147]  ? show_regs_print_info+0x20/0x20
[  456.327399][  T147]  ? load_image+0x400/0x400
[  456.331933][  T147]  sysfs_create_dir_ns+0x26a/0x290
[  456.337080][  T147]  ? sysfs_warn_dup+0xa0/0xa0
[  456.341801][  T147]  ? process_one_work+0x85f/0x1010
[  456.346938][  T147]  ? do_raw_spin_unlock+0x11d/0x230
[  456.352247][  T147]  kobject_add_internal+0x6e0/0xd90
[  456.357467][  T147]  kobject_add+0x160/0x230
[  456.362003][  T147]  ? kobject_init+0x1d0/0x1d0
[  456.366703][  T147]  ? klist_children_get+0x50/0x50
[  456.371738][  T147]  ? get_device_parent+0x121/0x3f0
[  456.376963][  T147]  device_add+0x483/0xfb0
[  456.381338][  T147]  hci_conn_add_sysfs+0xd1/0x1e0
[  456.386471][  T147]  le_conn_complete_evt+0xc48/0x15c0
[  456.391961][  T147]  ? cs_le_create_conn+0x5e0/0x5e0
[  456.397096][  T147]  ? __mutex_trylock_common+0x155/0x260
[  456.402933][  T147]  hci_le_meta_evt+0x285/0x3c90
[  456.408081][  T147]  ? hci_event_packet+0x37b/0x1370
[  456.413456][  T147]  ? __lock_acquire+0x7d10/0x7d10
[  456.418518][  T147]  ? hci_remote_host_features_evt+0x280/0x280
[  456.424690][  T147]  ? __mutex_unlock_slowpath+0x1b0/0x6c0
[  456.430339][  T147]  ? mark_lock+0x94/0x320
[  456.434683][  T147]  ? mutex_unlock+0x10/0x10
[  456.439210][  T147]  ? lockdep_hardirqs_on_prepare+0x409/0x770
[  456.445193][  T147]  ? lock_chain_count+0x20/0x20
[  456.450041][  T147]  ? __rwlock_init+0x140/0x140
[  456.454815][  T147]  hci_event_packet+0xe48/0x1370
[  456.459949][  T147]  ? lockdep_hardirqs_on+0x94/0x140
[  456.465376][  T147]  ? rcu_lock_release+0x20/0x20
[  456.470256][  T147]  ? hci_send_to_monitor+0x9c/0x4a0
[  456.475473][  T147]  hci_rx_work+0x255/0xa10
[  456.480032][  T147]  process_one_work+0x85f/0x1010
[  456.485008][  T147]  ? worker_detach_from_pool+0x240/0x240
[  456.490868][  T147]  ? lockdep_hardirqs_off+0x70/0x100
[  456.496270][  T147]  ? _raw_spin_lock_irq+0xb7/0xf0
[  456.501484][  T147]  ? _raw_spin_lock_irqsave+0x100/0x100
[  456.507052][  T147]  ? wq_worker_running+0x97/0x170
the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed
executing program
[  456.512351][  T147]  worker_thread+0xaa6/0x1290
[  456.517073][  T147]  kthread+0x436/0x520
[  456.521248][  T147]  ? rcu_lock_release+0x20/0x20
[  456.526106][  T147]  ? kthread_blkcg+0xd0/0xd0
[  456.530716][  T147]  ret_from_fork+0x1f/0x30
[  456.535158][  T147]  </TASK>
[  456.538510][  T147] kobject_add_internal failed for hci0:201 with -EEXIST, don't try to register things with the same name in the same directory.
[  456.551904][  T147] Bluetooth: hci0: failed to register connection device
[  456.570424][  T147] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci0/hci0:201'
[  456.580114][  T147] CPU: 0 PID: 147 Comm: kworker/u5:0 Not tainted syzkaller #0
[  456.587752][  T147] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  456.597849][  T147] Workqueue: hci0 hci_rx_work
[  456.602724][  T147] Call Trace:
[  456.606103][  T147]  <TASK>
[  456.610434][  T147]  dump_stack_lvl+0x188/0x250
[  456.615218][  T147]  ? show_regs_print_info+0x20/0x20
[  456.620436][  T147]  ? load_image+0x400/0x400
[  456.624969][  T147]  sysfs_create_dir_ns+0x26a/0x290
[  456.630385][  T147]  ? sysfs_warn_dup+0xa0/0xa0
[  456.635287][  T147]  ? process_one_work+0x85f/0x1010
[  456.640596][  T147]  ? do_raw_spin_unlock+0x11d/0x230
[  456.645900][  T147]  kobject_add_internal+0x6e0/0xd90
[  456.651185][  T147]  kobject_add+0x160/0x230
[  456.655643][  T147]  ? kobject_init+0x1d0/0x1d0
[  456.660427][  T147]  ? klist_children_get+0x50/0x50
[  456.665585][  T147]  ? get_device_parent+0x121/0x3f0
[  456.671004][  T147]  device_add+0x483/0xfb0
[  456.675369][  T147]  hci_conn_add_sysfs+0xd1/0x1e0
[  456.680345][  T147]  le_conn_complete_evt+0xc48/0x15c0
[  456.685923][  T147]  ? cs_le_create_conn+0x5e0/0x5e0
[  456.691244][  T147]  ? __mutex_trylock_common+0x155/0x260
[  456.696905][  T147]  hci_le_meta_evt+0x285/0x3c90
[  456.702140][  T147]  ? hci_event_packet+0x37b/0x1370
[  456.707536][  T147]  ? __lock_acquire+0x7d10/0x7d10
[  456.712678][  T147]  ? hci_remote_host_features_evt+0x280/0x280
[  456.718791][  T147]  ? __mutex_unlock_slowpath+0x1b0/0x6c0
[  456.724533][  T147]  ? mark_lock+0x94/0x320
[  456.728889][  T147]  ? mutex_unlock+0x10/0x10
[  456.733414][  T147]  ? lockdep_hardirqs_on_prepare+0x409/0x770
[  456.739505][  T147]  ? lock_chain_count+0x20/0x20
[  456.744467][  T147]  ? __rwlock_init+0x140/0x140
[  456.749260][  T147]  hci_event_packet+0xe48/0x1370
[  456.754257][  T147]  ? lockdep_hardirqs_on+0x94/0x140
[  456.760000][  T147]  ? rcu_lock_release+0x20/0x20
[  456.764970][  T147]  ? hci_send_to_monitor+0x9c/0x4a0
[  456.770386][  T147]  hci_rx_work+0x255/0xa10
[  456.774914][  T147]  process_one_work+0x85f/0x1010
[  456.779969][  T147]  ? worker_detach_from_pool+0x240/0x240
[  456.785667][  T147]  ? lockdep_hardirqs_off+0x70/0x100
[  456.791092][  T147]  ? _raw_spin_lock_irq+0xb7/0xf0
[  456.796136][  T147]  ? _raw_spin_lock_irqsave+0x100/0x100
[  456.801785][  T147]  ? wq_worker_running+0x97/0x170
[  456.806920][  T147]  worker_thread+0xaa6/0x1290
[  456.811723][  T147]  kthread+0x436/0x520
[  456.815988][  T147]  ? rcu_lock_release+0x20/0x20
the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed
executing program
[  456.820963][  T147]  ? kthread_blkcg+0xd0/0xd0
[  456.825667][  T147]  ret_from_fork+0x1f/0x30
[  456.830265][  T147]  </TASK>
[  456.837021][  T147] kobject_add_internal failed for hci0:201 with -EEXIST, don't try to register things with the same name in the same directory.
[  456.850727][  T147] Bluetooth: hci0: failed to register connection device
[  456.871885][  T147] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci0/hci0:201'
[  456.881524][  T147] CPU: 0 PID: 147 Comm: kworker/u5:0 Not tainted syzkaller #0
[  456.889000][  T147] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  456.899499][  T147] Workqueue: hci0 hci_rx_work
[  456.904279][  T147] Call Trace:
[  456.907737][  T147]  <TASK>
[  456.911412][  T147]  dump_stack_lvl+0x188/0x250
[  456.916111][  T147]  ? show_regs_print_info+0x20/0x20
[  456.921417][  T147]  ? load_image+0x400/0x400
[  456.926033][  T147]  sysfs_create_dir_ns+0x26a/0x290
[  456.931251][  T147]  ? sysfs_warn_dup+0xa0/0xa0
[  456.936127][  T147]  ? process_one_work+0x85f/0x1010
[  456.941537][  T147]  ? do_raw_spin_unlock+0x11d/0x230
[  456.946848][  T147]  kobject_add_internal+0x6e0/0xd90
[  456.952075][  T147]  kobject_add+0x160/0x230
[  456.956598][  T147]  ? kobject_init+0x1d0/0x1d0
[  456.961299][  T147]  ? klist_children_get+0x50/0x50
[  456.966335][  T147]  ? get_device_parent+0x121/0x3f0
[  456.971556][  T147]  device_add+0x483/0xfb0
[  456.976102][  T147]  hci_conn_add_sysfs+0xd1/0x1e0
[  456.981248][  T147]  le_conn_complete_evt+0xc48/0x15c0
[  456.986566][  T147]  ? cs_le_create_conn+0x5e0/0x5e0
[  456.991697][  T147]  ? __mutex_trylock_common+0x155/0x260
[  456.997516][  T147]  hci_le_meta_evt+0x285/0x3c90
[  457.002563][  T147]  ? hci_event_packet+0x37b/0x1370
[  457.007878][  T147]  ? __lock_acquire+0x7d10/0x7d10
[  457.013119][  T147]  ? hci_remote_host_features_evt+0x280/0x280
[  457.019294][  T147]  ? __mutex_unlock_slowpath+0x1b0/0x6c0
[  457.024955][  T147]  ? mark_lock+0x94/0x320
[  457.029391][  T147]  ? mutex_unlock+0x10/0x10
[  457.034009][  T147]  ? lockdep_hardirqs_on_prepare+0x409/0x770
[  457.040102][  T147]  ? lock_chain_count+0x20/0x20
[  457.045235][  T147]  ? __rwlock_init+0x140/0x140
[  457.050196][  T147]  hci_event_packet+0xe48/0x1370
[  457.055149][  T147]  ? lockdep_hardirqs_on+0x94/0x140
[  457.060464][  T147]  ? rcu_lock_release+0x20/0x20
[  457.065633][  T147]  ? hci_send_to_monitor+0x9c/0x4a0
[  457.070954][  T147]  hci_rx_work+0x255/0xa10
[  457.075416][  T147]  process_one_work+0x85f/0x1010
[  457.080473][  T147]  ? worker_detach_from_pool+0x240/0x240
[  457.086121][  T147]  ? lockdep_hardirqs_off+0x70/0x100
[  457.091514][  T147]  ? _raw_spin_lock_irq+0xb7/0xf0
[  457.096552][  T147]  ? _raw_spin_lock_irqsave+0x100/0x100
[  457.102378][  T147]  ? wq_worker_running+0x97/0x170
[  457.107504][  T147]  worker_thread+0xaa6/0x1290
[  457.112228][  T147]  kthread+0x436/0x520
[  457.116310][  T147]  ? rcu_lock_release+0x20/0x20
the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed
executing program
[  457.121186][  T147]  ? kthread_blkcg+0xd0/0xd0
[  457.125797][  T147]  ret_from_fork+0x1f/0x30
[  457.130253][  T147]  </TASK>
[  457.137692][  T147] kobject_add_internal failed for hci0:201 with -EEXIST, don't try to register things with the same name in the same directory.
[  457.151348][  T147] Bluetooth: hci0: failed to register connection device
[  457.169708][  T147] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci0/hci0:201'
[  457.179356][  T147] CPU: 0 PID: 147 Comm: kworker/u5:0 Not tainted syzkaller #0
[  457.186823][  T147] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  457.196975][  T147] Workqueue: hci0 hci_rx_work
[  457.201825][  T147] Call Trace:
[  457.205250][  T147]  <TASK>
[  457.208177][  T147]  dump_stack_lvl+0x188/0x250
[  457.212860][  T147]  ? show_regs_print_info+0x20/0x20
[  457.218182][  T147]  ? load_image+0x400/0x400
[  457.222821][  T147]  sysfs_create_dir_ns+0x26a/0x290
[  457.228473][  T147]  ? sysfs_warn_dup+0xa0/0xa0
[  457.233170][  T147]  ? process_one_work+0x85f/0x1010
[  457.238381][  T147]  ? do_raw_spin_unlock+0x11d/0x230
[  457.243711][  T147]  kobject_add_internal+0x6e0/0xd90
[  457.249496][  T147]  kobject_add+0x160/0x230
[  457.254292][  T147]  ? kobject_init+0x1d0/0x1d0
[  457.259497][  T147]  ? klist_children_get+0x50/0x50
[  457.264736][  T147]  ? get_device_parent+0x121/0x3f0
[  457.270095][  T147]  device_add+0x483/0xfb0
[  457.274598][  T147]  hci_conn_add_sysfs+0xd1/0x1e0
[  457.279665][  T147]  le_conn_complete_evt+0xc48/0x15c0
[  457.285029][  T147]  ? cs_le_create_conn+0x5e0/0x5e0
[  457.290485][  T147]  ? __mutex_trylock_common+0x155/0x260
[  457.296042][  T147]  hci_le_meta_evt+0x285/0x3c90
[  457.301337][  T147]  ? hci_event_packet+0x37b/0x1370
[  457.306534][  T147]  ? __lock_acquire+0x7d10/0x7d10
[  457.312699][  T147]  ? hci_remote_host_features_evt+0x280/0x280
[  457.319453][  T147]  ? __mutex_unlock_slowpath+0x1b0/0x6c0
[  457.325444][  T147]  ? mark_lock+0x94/0x320
[  457.329946][  T147]  ? mutex_unlock+0x10/0x10
[  457.334453][  T147]  ? lockdep_hardirqs_on_prepare+0x409/0x770
[  457.340509][  T147]  ? lock_chain_count+0x20/0x20
[  457.345602][  T147]  ? __rwlock_init+0x140/0x140
[  457.350365][  T147]  hci_event_packet+0xe48/0x1370
[  457.355494][  T147]  ? lockdep_hardirqs_on+0x94/0x140
[  457.360783][  T147]  ? rcu_lock_release+0x20/0x20
[  457.365893][  T147]  ? hci_send_to_monitor+0x9c/0x4a0
[  457.371188][  T147]  hci_rx_work+0x255/0xa10
[  457.375605][  T147]  process_one_work+0x85f/0x1010
[  457.380979][  T147]  ? worker_detach_from_pool+0x240/0x240
[  457.386871][  T147]  ? lockdep_hardirqs_off+0x70/0x100
[  457.392235][  T147]  ? _raw_spin_lock_irq+0xb7/0xf0
[  457.397476][  T147]  ? _raw_spin_lock_irqsave+0x100/0x100
[  457.403359][  T147]  ? wq_worker_running+0x97/0x170
[  457.408572][  T147]  worker_thread+0xaa6/0x1290
[  457.413438][  T147]  kthread+0x436/0x520
[  457.417723][  T147]  ? rcu_lock_release+0x20/0x20
the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed
executing program
[  457.422575][  T147]  ? kthread_blkcg+0xd0/0xd0
[  457.427166][  T147]  ret_from_fork+0x1f/0x30
[  457.431630][  T147]  </TASK>
[  457.435050][  T147] kobject_add_internal failed for hci0:201 with -EEXIST, don't try to register things with the same name in the same directory.
[  457.449248][  T147] Bluetooth: hci0: failed to register connection device
[  457.468207][  T147] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci0/hci0:201'
[  457.478229][  T147] CPU: 1 PID: 147 Comm: kworker/u5:0 Not tainted syzkaller #0
[  457.485793][  T147] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  457.495943][  T147] Workqueue: hci0 hci_rx_work
[  457.500706][  T147] Call Trace:
[  457.503968][  T147]  <TASK>
[  457.506893][  T147]  dump_stack_lvl+0x188/0x250
[  457.511878][  T147]  ? show_regs_print_info+0x20/0x20
[  457.517459][  T147]  ? load_image+0x400/0x400
[  457.521964][  T147]  sysfs_create_dir_ns+0x26a/0x290
[  457.527068][  T147]  ? sysfs_warn_dup+0xa0/0xa0
[  457.531816][  T147]  ? process_one_work+0x85f/0x1010
[  457.537121][  T147]  ? do_raw_spin_unlock+0x11d/0x230
[  457.542457][  T147]  kobject_add_internal+0x6e0/0xd90
[  457.547738][  T147]  kobject_add+0x160/0x230
[  457.552147][  T147]  ? kobject_init+0x1d0/0x1d0
[  457.556810][  T147]  ? klist_children_get+0x50/0x50
[  457.561996][  T147]  ? get_device_parent+0x121/0x3f0
[  457.567355][  T147]  device_add+0x483/0xfb0
[  457.571713][  T147]  hci_conn_add_sysfs+0xd1/0x1e0
[  457.576760][  T147]  le_conn_complete_evt+0xc48/0x15c0
[  457.582142][  T147]  ? cs_le_create_conn+0x5e0/0x5e0
[  457.587485][  T147]  ? __mutex_trylock_common+0x155/0x260
[  457.593484][  T147]  hci_le_meta_evt+0x285/0x3c90
[  457.598415][  T147]  ? hci_event_packet+0x37b/0x1370
[  457.603507][  T147]  ? __lock_acquire+0x7d10/0x7d10
[  457.608648][  T147]  ? hci_remote_host_features_evt+0x280/0x280
[  457.614952][  T147]  ? __mutex_unlock_slowpath+0x1b0/0x6c0
[  457.620589][  T147]  ? mark_lock+0x94/0x320
[  457.625083][  T147]  ? mutex_unlock+0x10/0x10
[  457.630213][  T147]  ? lockdep_hardirqs_on_prepare+0x409/0x770
[  457.636192][  T147]  ? lock_chain_count+0x20/0x20
[  457.641050][  T147]  ? __rwlock_init+0x140/0x140
[  457.646220][  T147]  hci_event_packet+0xe48/0x1370
[  457.651364][  T147]  ? lockdep_hardirqs_on+0x94/0x140
[  457.656764][  T147]  ? rcu_lock_release+0x20/0x20
[  457.661709][  T147]  ? hci_send_to_monitor+0x9c/0x4a0
[  457.667089][  T147]  hci_rx_work+0x255/0xa10
[  457.671655][  T147]  process_one_work+0x85f/0x1010
[  457.676600][  T147]  ? worker_detach_from_pool+0x240/0x240
[  457.682300][  T147]  ? lockdep_hardirqs_off+0x70/0x100
[  457.687980][  T147]  ? _raw_spin_lock_irq+0xb7/0xf0
[  457.693129][  T147]  ? _raw_spin_lock_irqsave+0x100/0x100
[  457.698849][  T147]  ? wq_worker_running+0x97/0x170
[  457.704169][  T147]  worker_thread+0xaa6/0x1290
[  457.708859][  T147]  kthread+0x436/0x520
[  457.713003][  T147]  ? rcu_lock_release+0x20/0x20
[  457.718031][  T147]  ? kthread_blkcg+0xd0/0xd0
the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed
executing program
[  457.722704][  T147]  ret_from_fork+0x1f/0x30
[  457.727202][  T147]  </TASK>
[  457.731041][  T147] kobject_add_internal failed for hci0:201 with -EEXIST, don't try to register things with the same name in the same directory.
[  457.744537][  T147] Bluetooth: hci0: failed to register connection device
[  457.757265][  T147] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci0/hci0:201'
[  457.767091][  T147] CPU: 0 PID: 147 Comm: kworker/u5:0 Not tainted syzkaller #0
[  457.774723][  T147] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  457.784997][  T147] Workqueue: hci0 hci_rx_work
[  457.789775][  T147] Call Trace:
[  457.793038][  T147]  <TASK>
[  457.796247][  T147]  dump_stack_lvl+0x188/0x250
[  457.801020][  T147]  ? show_regs_print_info+0x20/0x20
[  457.806524][  T147]  ? load_image+0x400/0x400
[  457.811369][  T147]  sysfs_create_dir_ns+0x26a/0x290
[  457.816662][  T147]  ? sysfs_warn_dup+0xa0/0xa0
[  457.821420][  T147]  ? process_one_work+0x85f/0x1010
[  457.826522][  T147]  ? do_raw_spin_unlock+0x11d/0x230
[  457.831712][  T147]  kobject_add_internal+0x6e0/0xd90
[  457.837867][  T147]  kobject_add+0x160/0x230
[  457.842627][  T147]  ? kobject_init+0x1d0/0x1d0
[  457.847613][  T147]  ? klist_children_get+0x50/0x50
[  457.852806][  T147]  ? get_device_parent+0x121/0x3f0
[  457.858011][  T147]  device_add+0x483/0xfb0
[  457.862472][  T147]  hci_conn_add_sysfs+0xd1/0x1e0
[  457.867848][  T147]  le_conn_complete_evt+0xc48/0x15c0
[  457.873136][  T147]  ? cs_le_create_conn+0x5e0/0x5e0
[  457.878451][  T147]  ? __mutex_trylock_common+0x155/0x260
[  457.884094][  T147]  hci_le_meta_evt+0x285/0x3c90
[  457.888942][  T147]  ? hci_event_packet+0x37b/0x1370
[  457.894049][  T147]  ? __lock_acquire+0x7d10/0x7d10
[  457.899184][  T147]  ? hci_remote_host_features_evt+0x280/0x280
[  457.905327][  T147]  ? __mutex_unlock_slowpath+0x1b0/0x6c0
[  457.910948][  T147]  ? mark_lock+0x94/0x320
[  457.915440][  T147]  ? mutex_unlock+0x10/0x10
[  457.920018][  T147]  ? lockdep_hardirqs_on_prepare+0x409/0x770
[  457.926547][  T147]  ? lock_chain_count+0x20/0x20
[  457.932969][  T147]  ? __rwlock_init+0x140/0x140
[  457.937815][  T147]  hci_event_packet+0xe48/0x1370
[  457.942831][  T147]  ? lockdep_hardirqs_on+0x94/0x140
[  457.948279][  T147]  ? rcu_lock_release+0x20/0x20
[  457.953295][  T147]  ? hci_send_to_monitor+0x9c/0x4a0
[  457.958654][  T147]  hci_rx_work+0x255/0xa10
[  457.963052][  T147]  process_one_work+0x85f/0x1010
[  457.968290][  T147]  ? worker_detach_from_pool+0x240/0x240
[  457.974079][  T147]  ? lockdep_hardirqs_off+0x70/0x100
[  457.979347][  T147]  ? _raw_spin_lock_irq+0xb7/0xf0
[  457.984611][  T147]  ? _raw_spin_lock_irqsave+0x100/0x100
[  457.990143][  T147]  ? wq_worker_running+0x97/0x170
[  457.995235][  T147]  worker_thread+0xaa6/0x1290
[  457.999945][  T147]  kthread+0x436/0x520
[  458.004008][  T147]  ? rcu_lock_release+0x20/0x20
[  458.009320][  T147]  ? kthread_blkcg+0xd0/0xd0
[  458.014117][  T147]  ret_from_fork+0x1f/0x30
[  458.019370][  T147]  </TASK>
the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed
executing program
[  458.023001][   T13] Bluetooth: hci0: command 0x0406 tx timeout
[  458.027020][  T147] kobject_add_internal failed for hci0:201 with -EEXIST, don't try to register things with the same name in the same directory.
[  458.047329][  T147] Bluetooth: hci0: failed to register connection device
[  458.068305][  T147] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci0/hci0:201'
[  458.078023][  T147] CPU: 0 PID: 147 Comm: kworker/u5:0 Not tainted syzkaller #0
[  458.085714][  T147] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  458.095995][  T147] Workqueue: hci0 hci_rx_work
[  458.100949][  T147] Call Trace:
[  458.104391][  T147]  <TASK>
[  458.107764][  T147]  dump_stack_lvl+0x188/0x250
[  458.112979][  T147]  ? show_regs_print_info+0x20/0x20
[  458.118345][  T147]  ? load_image+0x400/0x400
[  458.122923][  T147]  sysfs_create_dir_ns+0x26a/0x290
[  458.128397][  T147]  ? sysfs_warn_dup+0xa0/0xa0
[  458.133079][  T147]  ? process_one_work+0x85f/0x1010
[  458.138199][  T147]  ? do_raw_spin_unlock+0x11d/0x230
[  458.143405][  T147]  kobject_add_internal+0x6e0/0xd90
[  458.149378][  T147]  kobject_add+0x160/0x230
[  458.153827][  T147]  ? kobject_init+0x1d0/0x1d0
[  458.158641][  T147]  ? klist_children_get+0x50/0x50
[  458.163770][  T147]  ? get_device_parent+0x121/0x3f0
[  458.169045][  T147]  device_add+0x483/0xfb0
[  458.173385][  T147]  hci_conn_add_sysfs+0xd1/0x1e0
[  458.178405][  T147]  le_conn_complete_evt+0xc48/0x15c0
[  458.183784][  T147]  ? cs_le_create_conn+0x5e0/0x5e0
[  458.189079][  T147]  ? __mutex_trylock_common+0x155/0x260
[  458.194636][  T147]  hci_le_meta_evt+0x285/0x3c90
[  458.199663][  T147]  ? hci_event_packet+0x37b/0x1370
[  458.204853][  T147]  ? __lock_acquire+0x7d10/0x7d10
[  458.210083][  T147]  ? hci_remote_host_features_evt+0x280/0x280
[  458.216136][  T147]  ? __mutex_unlock_slowpath+0x1b0/0x6c0
[  458.221776][  T147]  ? mark_lock+0x94/0x320
[  458.226193][  T147]  ? mutex_unlock+0x10/0x10
[  458.230693][  T147]  ? lockdep_hardirqs_on_prepare+0x409/0x770
[  458.236817][  T147]  ? lock_chain_count+0x20/0x20
[  458.241855][  T147]  ? __rwlock_init+0x140/0x140
[  458.246827][  T147]  hci_event_packet+0xe48/0x1370
[  458.251857][  T147]  ? lockdep_hardirqs_on+0x94/0x140
[  458.257369][  T147]  ? rcu_lock_release+0x20/0x20
[  458.263178][  T147]  ? hci_send_to_monitor+0x9c/0x4a0
[  458.268846][  T147]  hci_rx_work+0x255/0xa10
[  458.273361][  T147]  process_one_work+0x85f/0x1010
[  458.278409][  T147]  ? worker_detach_from_pool+0x240/0x240
[  458.284462][  T147]  ? lockdep_hardirqs_off+0x70/0x100
[  458.290021][  T147]  ? _raw_spin_lock_irq+0xb7/0xf0
[  458.295043][  T147]  ? _raw_spin_lock_irqsave+0x100/0x100
[  458.300583][  T147]  ? wq_worker_running+0x97/0x170
[  458.305857][  T147]  worker_thread+0xaa6/0x1290
[  458.310646][  T147]  kthread+0x436/0x520
[  458.314981][  T147]  ? rcu_lock_release+0x20/0x20
[  458.319914][  T147]  ? kthread_blkcg+0xd0/0xd0
[  458.324791][  T147]  ret_from_fork+0x1f/0x30
the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed
executing program
[  458.329296][  T147]  </TASK>
[  458.332536][  T147] kobject_add_internal failed for hci0:201 with -EEXIST, don't try to register things with the same name in the same directory.
[  458.346225][  T147] Bluetooth: hci0: failed to register connection device
[  458.366399][ T4217] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci0/hci0:201'
[  458.376377][ T4217] CPU: 1 PID: 4217 Comm: kworker/u5:1 Not tainted syzkaller #0
[  458.384089][ T4217] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  458.394361][ T4217] Workqueue: hci0 hci_rx_work
[  458.399319][ T4217] Call Trace:
[  458.402680][ T4217]  <TASK>
[  458.405788][ T4217]  dump_stack_lvl+0x188/0x250
[  458.410471][ T4217]  ? show_regs_print_info+0x20/0x20
[  458.415871][ T4217]  ? load_image+0x400/0x400
[  458.420373][ T4217]  sysfs_create_dir_ns+0x26a/0x290
[  458.425474][ T4217]  ? sysfs_warn_dup+0xa0/0xa0
[  458.430219][ T4217]  ? process_one_work+0x85f/0x1010
[  458.435315][ T4217]  ? do_raw_spin_unlock+0x11d/0x230
[  458.440587][ T4217]  kobject_add_internal+0x6e0/0xd90
[  458.445774][ T4217]  kobject_add+0x160/0x230
[  458.450349][ T4217]  ? kobject_init+0x1d0/0x1d0
[  458.455118][ T4217]  ? klist_children_get+0x50/0x50
[  458.460211][ T4217]  ? get_device_parent+0x121/0x3f0
[  458.465306][ T4217]  device_add+0x483/0xfb0
[  458.469710][ T4217]  hci_conn_add_sysfs+0xd1/0x1e0
[  458.474633][ T4217]  le_conn_complete_evt+0xc48/0x15c0
[  458.479913][ T4217]  ? cs_le_create_conn+0x5e0/0x5e0
[  458.485163][ T4217]  ? __mutex_trylock_common+0x155/0x260
[  458.490936][ T4217]  hci_le_meta_evt+0x285/0x3c90
[  458.495970][ T4217]  ? hci_event_packet+0x37b/0x1370
[  458.501163][ T4217]  ? __lock_acquire+0x7d10/0x7d10
[  458.506267][ T4217]  ? hci_remote_host_features_evt+0x280/0x280
[  458.512322][ T4217]  ? __mutex_unlock_slowpath+0x1b0/0x6c0
[  458.517944][ T4217]  ? mark_lock+0x94/0x320
[  458.522427][ T4217]  ? mutex_unlock+0x10/0x10
[  458.527040][ T4217]  ? lockdep_hardirqs_on_prepare+0x409/0x770
[  458.533027][ T4217]  ? lock_chain_count+0x20/0x20
[  458.537882][ T4217]  ? __rwlock_init+0x140/0x140
[  458.542629][ T4217]  hci_event_packet+0xe48/0x1370
[  458.547556][ T4217]  ? lockdep_hardirqs_on+0x94/0x140
[  458.552743][ T4217]  ? rcu_lock_release+0x20/0x20
[  458.557671][ T4217]  ? hci_send_to_monitor+0x9c/0x4a0
[  458.562853][ T4217]  hci_rx_work+0x255/0xa10
[  458.567369][ T4217]  process_one_work+0x85f/0x1010
[  458.572310][ T4217]  ? worker_detach_from_pool+0x240/0x240
[  458.578036][ T4217]  ? lockdep_hardirqs_off+0x70/0x100
[  458.583317][ T4217]  ? _raw_spin_lock_irq+0xb7/0xf0
[  458.588419][ T4217]  ? _raw_spin_lock_irqsave+0x100/0x100
[  458.593970][ T4217]  ? wq_worker_running+0x97/0x170
[  458.599150][ T4217]  worker_thread+0xaa6/0x1290
[  458.603835][ T4217]  kthread+0x436/0x520
[  458.608070][ T4217]  ? rcu_lock_release+0x20/0x20
[  458.613088][ T4217]  ? kthread_blkcg+0xd0/0xd0
[  458.617852][ T4217]  ret_from_fork+0x1f/0x30
[  458.622502][ T4217]  </TASK>
the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed
executing program
[  458.627284][ T4217] kobject_add_internal failed for hci0:201 with -EEXIST, don't try to register things with the same name in the same directory.
[  458.641578][ T4217] Bluetooth: hci0: failed to register connection device
[  458.654440][ T4217] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci0/hci0:201'
[  458.664433][ T4217] CPU: 0 PID: 4217 Comm: kworker/u5:1 Not tainted syzkaller #0
[  458.672061][ T4217] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  458.682188][ T4217] Workqueue: hci0 hci_rx_work
[  458.686973][ T4217] Call Trace:
[  458.690239][ T4217]  <TASK>
[  458.693517][ T4217]  dump_stack_lvl+0x188/0x250
[  458.698445][ T4217]  ? show_regs_print_info+0x20/0x20
[  458.703721][ T4217]  ? load_image+0x400/0x400
[  458.708412][ T4217]  sysfs_create_dir_ns+0x26a/0x290
[  458.713528][ T4217]  ? sysfs_warn_dup+0xa0/0xa0
[  458.718186][ T4217]  ? process_one_work+0x85f/0x1010
[  458.723363][ T4217]  ? do_raw_spin_unlock+0x11d/0x230
[  458.728752][ T4217]  kobject_add_internal+0x6e0/0xd90
[  458.734034][ T4217]  kobject_add+0x160/0x230
[  458.738453][ T4217]  ? kobject_init+0x1d0/0x1d0
[  458.743217][ T4217]  ? klist_children_get+0x50/0x50
[  458.748329][ T4217]  ? get_device_parent+0x121/0x3f0
[  458.753547][ T4217]  device_add+0x483/0xfb0
[  458.758204][ T4217]  hci_conn_add_sysfs+0xd1/0x1e0
[  458.763231][ T4217]  le_conn_complete_evt+0xc48/0x15c0
[  458.769039][ T4217]  ? cs_le_create_conn+0x5e0/0x5e0
[  458.774151][ T4217]  ? __mutex_trylock_common+0x155/0x260
[  458.779820][ T4217]  hci_le_meta_evt+0x285/0x3c90
[  458.784667][ T4217]  ? hci_event_packet+0x37b/0x1370
[  458.789854][ T4217]  ? __lock_acquire+0x7d10/0x7d10
[  458.794969][ T4217]  ? hci_remote_host_features_evt+0x280/0x280
[  458.801039][ T4217]  ? __mutex_unlock_slowpath+0x1b0/0x6c0
[  458.806798][ T4217]  ? mark_lock+0x94/0x320
[  458.811524][ T4217]  ? mutex_unlock+0x10/0x10
[  458.816248][ T4217]  ? lockdep_hardirqs_on_prepare+0x409/0x770
[  458.822317][ T4217]  ? lock_chain_count+0x20/0x20
[  458.827265][ T4217]  ? __rwlock_init+0x140/0x140
[  458.832296][ T4217]  hci_event_packet+0xe48/0x1370
[  458.837235][ T4217]  ? lockdep_hardirqs_on+0x94/0x140
[  458.842437][ T4217]  ? rcu_lock_release+0x20/0x20
[  458.847427][ T4217]  ? hci_send_to_monitor+0x9c/0x4a0
[  458.852734][ T4217]  hci_rx_work+0x255/0xa10
[  458.857250][ T4217]  process_one_work+0x85f/0x1010
[  458.862303][ T4217]  ? worker_detach_from_pool+0x240/0x240
[  458.868187][ T4217]  ? lockdep_hardirqs_off+0x70/0x100
[  458.873465][ T4217]  ? _raw_spin_lock_irq+0xb7/0xf0
[  458.878471][ T4217]  ? _raw_spin_lock_irqsave+0x100/0x100
[  458.883998][ T4217]  ? wq_worker_running+0x97/0x170
[  458.889091][ T4217]  worker_thread+0xaa6/0x1290
[  458.893774][ T4217]  kthread+0x436/0x520
[  458.897913][ T4217]  ? rcu_lock_release+0x20/0x20
[  458.903226][ T4217]  ? kthread_blkcg+0xd0/0xd0
[  458.908040][ T4217]  ret_from_fork+0x1f/0x30
[  458.912551][ T4217]  </TASK>
[  458.916262][ T4217] kobject_add_internal failed for hci0:201 with -EEXIST, don't try to register things with the same name in the same directory.
the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed
executing program
[  458.930155][ T4217] Bluetooth: hci0: failed to register connection device
[  458.944033][ T4217] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci0/hci0:201'
[  458.954841][ T4217] CPU: 0 PID: 4217 Comm: kworker/u5:1 Not tainted syzkaller #0
[  458.962670][ T4217] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  458.973440][ T4217] Workqueue: hci0 hci_rx_work
[  458.978744][ T4217] Call Trace:
[  458.982267][ T4217]  <TASK>
[  458.985735][ T4217]  dump_stack_lvl+0x188/0x250
[  458.990676][ T4217]  ? show_regs_print_info+0x20/0x20
[  458.995871][ T4217]  ? load_image+0x400/0x400
[  459.000468][ T4217]  sysfs_create_dir_ns+0x26a/0x290
[  459.005666][ T4217]  ? sysfs_warn_dup+0xa0/0xa0
[  459.010327][ T4217]  ? process_one_work+0x85f/0x1010
[  459.015524][ T4217]  ? do_raw_spin_unlock+0x11d/0x230
[  459.020724][ T4217]  kobject_add_internal+0x6e0/0xd90
[  459.026360][ T4217]  kobject_add+0x160/0x230
[  459.031343][ T4217]  ? kobject_init+0x1d0/0x1d0
[  459.036052][ T4217]  ? klist_children_get+0x50/0x50
[  459.041548][ T4217]  ? get_device_parent+0x121/0x3f0
[  459.046856][ T4217]  device_add+0x483/0xfb0
[  459.051371][ T4217]  hci_conn_add_sysfs+0xd1/0x1e0
[  459.056705][ T4217]  le_conn_complete_evt+0xc48/0x15c0
[  459.062191][ T4217]  ? cs_le_create_conn+0x5e0/0x5e0
[  459.067350][ T4217]  ? __mutex_trylock_common+0x155/0x260
[  459.072891][ T4217]  hci_le_meta_evt+0x285/0x3c90
[  459.077872][ T4217]  ? hci_event_packet+0x37b/0x1370
[  459.082986][ T4217]  ? __lock_acquire+0x7d10/0x7d10
[  459.088012][ T4217]  ? hci_remote_host_features_evt+0x280/0x280
[  459.094070][ T4217]  ? __mutex_unlock_slowpath+0x1b0/0x6c0
[  459.099699][ T4217]  ? mark_lock+0x94/0x320
[  459.104296][ T4217]  ? mutex_unlock+0x10/0x10
[  459.108804][ T4217]  ? lockdep_hardirqs_on_prepare+0x409/0x770
[  459.115477][ T4217]  ? lock_chain_count+0x20/0x20
[  459.120321][ T4217]  ? __rwlock_init+0x140/0x140
[  459.125074][ T4217]  hci_event_packet+0xe48/0x1370
[  459.129995][ T4217]  ? lockdep_hardirqs_on+0x94/0x140
[  459.135285][ T4217]  ? rcu_lock_release+0x20/0x20
[  459.140135][ T4217]  ? hci_send_to_monitor+0x9c/0x4a0
[  459.145541][ T4217]  hci_rx_work+0x255/0xa10
[  459.149978][ T4217]  process_one_work+0x85f/0x1010
[  459.154930][ T4217]  ? worker_detach_from_pool+0x240/0x240
[  459.160678][ T4217]  ? lockdep_hardirqs_off+0x70/0x100
[  459.166071][ T4217]  ? _raw_spin_lock_irq+0xb7/0xf0
[  459.171098][ T4217]  ? _raw_spin_lock_irqsave+0x100/0x100
[  459.176669][ T4217]  ? wq_worker_running+0x97/0x170
the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed
[  459.181871][ T4217]  worker_thread+0xaa6/0x1290
[  459.186562][ T4217]  kthread+0x436/0x520
[  459.190610][ T4217]  ? rcu_lock_release+0x20/0x20
[  459.195507][ T4217]  ? kthread_blkcg+0xd0/0xd0
[  459.200187][ T4217]  ret_from_fork+0x1f/0x30
[  459.204601][ T4217]  </TASK>
[  459.208358][ T4217] kobject_add_internal failed for hci0:201 with -EEXIST, don't try to register things with the same name in the same directory.
[  459.221939][ T4217] Bluetooth: hci0: failed to register connection device
executing program
[  459.233089][ T4217] ==================================================================
[  459.241713][ T4217] BUG: KASAN: use-after-free in l2cap_connect_cfm+0x6ff/0x10f0
[  459.249798][ T4217] Read of size 8 at addr ffff888027e93488 by task kworker/u5:1/4217
[  459.258227][ T4217] 
[  459.261130][ T4217] CPU: 0 PID: 4217 Comm: kworker/u5:1 Not tainted syzkaller #0
[  459.269294][ T4217] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  459.280982][ T4217] Workqueue: hci0 hci_rx_work
[  459.285672][ T4217] Call Trace:
[  459.289160][ T4217]  <TASK>
[  459.292188][ T4217]  dump_stack_lvl+0x188/0x250
[  459.297077][ T4217]  ? show_regs_print_info+0x20/0x20
[  459.302935][ T4217]  ? load_image+0x400/0x400
[  459.308049][ T4217]  ? _raw_spin_lock_irqsave+0xbc/0x100
[  459.314044][ T4217]  ? __mutex_unlock_slowpath+0x658/0x6c0
[  459.321127][ T4217]  print_address_description+0x60/0x2d0
[  459.327098][ T4217]  ? l2cap_connect_cfm+0x6ff/0x10f0
[  459.332657][ T4217]  kasan_report+0xdf/0x130
[  459.337340][ T4217]  ? l2cap_connect_cfm+0x6ff/0x10f0
[  459.343473][ T4217]  l2cap_connect_cfm+0x6ff/0x10f0
[  459.349164][ T4217]  ? l2cap_ertm_resend+0x10d0/0x10d0
[  459.354997][ T4217]  ? l2cap_ertm_resend+0x10d0/0x10d0
[  459.360885][ T4217]  le_conn_complete_evt+0xd42/0x15c0
[  459.366372][ T4217]  ? cs_le_create_conn+0x5e0/0x5e0
[  459.371475][ T4217]  ? __mutex_trylock_common+0x155/0x260
[  459.377008][ T4217]  hci_le_meta_evt+0x285/0x3c90
[  459.381846][ T4217]  ? hci_event_packet+0x37b/0x1370
[  459.387327][ T4217]  ? __lock_acquire+0x7d10/0x7d10
[  459.392464][ T4217]  ? hci_remote_host_features_evt+0x280/0x280
[  459.398542][ T4217]  ? __mutex_unlock_slowpath+0x1b0/0x6c0
[  459.404169][ T4217]  ? mark_lock+0x94/0x320
[  459.408505][ T4217]  ? mutex_unlock+0x10/0x10
[  459.413415][ T4217]  ? lockdep_hardirqs_on_prepare+0x409/0x770
[  459.419673][ T4217]  ? lock_chain_count+0x20/0x20
[  459.424610][ T4217]  ? __rwlock_init+0x140/0x140
[  459.429738][ T4217]  hci_event_packet+0xe48/0x1370
[  459.434849][ T4217]  ? lockdep_hardirqs_on+0x94/0x140
[  459.440132][ T4217]  ? rcu_lock_release+0x20/0x20
[  459.445348][ T4217]  ? hci_send_to_monitor+0x9c/0x4a0
[  459.450738][ T4217]  hci_rx_work+0x255/0xa10
[  459.455435][ T4217]  process_one_work+0x85f/0x1010
[  459.460627][ T4217]  ? worker_detach_from_pool+0x240/0x240
[  459.466524][ T4217]  ? lockdep_hardirqs_off+0x70/0x100
[  459.471944][ T4217]  ? _raw_spin_lock_irq+0xb7/0xf0
[  459.477493][ T4217]  ? _raw_spin_lock_irqsave+0x100/0x100
[  459.483363][ T4217]  ? wq_worker_running+0x97/0x170
[  459.488602][ T4217]  worker_thread+0xaa6/0x1290
[  459.493628][ T4217]  kthread+0x436/0x520
[  459.497879][ T4217]  ? rcu_lock_release+0x20/0x20
[  459.502828][ T4217]  ? kthread_blkcg+0xd0/0xd0
[  459.507483][ T4217]  ret_from_fork+0x1f/0x30
[  459.511899][ T4217]  </TASK>
[  459.515088][ T4217] 
[  459.517390][ T4217] Allocated by task 4217:
[  459.521794][ T4217]  __kasan_kmalloc+0xb5/0xf0
[  459.526391][ T4217]  l2cap_chan_create+0x4c/0x730
[  459.531411][ T4217]  l2cap_sock_alloc+0x13a/0x200
[  459.536242][ T4217]  l2cap_sock_new_connection_cb+0xd1/0x1c0
[  459.542040][ T4217]  l2cap_connect_cfm+0x35d/0x10f0
[  459.547042][ T4217]  le_conn_complete_evt+0xd42/0x15c0
[  459.552407][ T4217]  hci_le_meta_evt+0x285/0x3c90
[  459.557344][ T4217]  hci_event_packet+0xe48/0x1370
[  459.562445][ T4217]  hci_rx_work+0x255/0xa10
[  459.567315][ T4217]  process_one_work+0x85f/0x1010
[  459.572424][ T4217]  worker_thread+0xaa6/0x1290
[  459.577212][ T4217]  kthread+0x436/0x520
[  459.581347][ T4217]  ret_from_fork+0x1f/0x30
[  459.585750][ T4217] 
[  459.588072][ T4217] Freed by task 8607:
[  459.592124][ T4217]  kasan_set_track+0x4b/0x70
[  459.596950][ T4217]  kasan_set_free_info+0x1f/0x40
[  459.601977][ T4217]  ____kasan_slab_free+0xd5/0x110
[  459.607016][ T4217]  slab_free_freelist_hook+0xea/0x170
[  459.612499][ T4217]  kfree+0xef/0x2a0
[  459.616405][ T4217]  l2cap_sock_cleanup_listen+0xea/0x270
[  459.622168][ T4217]  l2cap_sock_release+0x66/0x1e0
[  459.627288][ T4217]  sock_close+0xd5/0x240
[  459.631709][ T4217]  __fput+0x234/0x930
[  459.635859][ T4217]  task_work_run+0x125/0x1a0
[  459.640445][ T4217]  exit_to_user_mode_loop+0x10f/0x130
[  459.646021][ T4217]  exit_to_user_mode_prepare+0xee/0x180
[  459.652059][ T4217]  syscall_exit_to_user_mode+0x16/0x40
[  459.657951][ T4217]  do_syscall_64+0x58/0xa0
[  459.662584][ T4217]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  459.668738][ T4217] 
[  459.671151][ T4217] Last potentially related work creation:
[  459.677125][ T4217]  kasan_save_stack+0x35/0x60
[  459.681812][ T4217]  kasan_record_aux_stack+0xb8/0x100
[  459.687121][ T4217]  call_rcu+0x189/0x950
[  459.691523][ T4217]  netlink_release+0x1369/0x17b0
[  459.696646][ T4217]  sock_release+0x7b/0x140
[  459.701590][ T4217]  crypto_netlink_exit+0x3c/0x60
[  459.706834][ T4217]  cleanup_net+0x706/0xba0
[  459.711550][ T4217]  process_one_work+0x85f/0x1010
[  459.716983][ T4217]  worker_thread+0xaa6/0x1290
[  459.721864][ T4217]  kthread+0x436/0x520
[  459.725931][ T4217]  ret_from_fork+0x1f/0x30
[  459.730481][ T4217] 
[  459.732886][ T4217] The buggy address belongs to the object at ffff888027e93000
[  459.732886][ T4217]  which belongs to the cache kmalloc-2k of size 2048
[  459.747534][ T4217] The buggy address is located 1160 bytes inside of
[  459.747534][ T4217]  2048-byte region [ffff888027e93000, ffff888027e93800)
[  459.761075][ T4217] The buggy address belongs to the page:
[  459.766775][ T4217] page:ffffea00009fa400 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x27e90
[  459.777302][ T4217] head:ffffea00009fa400 order:3 compound_mapcount:0 compound_pincount:0
[  459.785876][ T4217] flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff)
[  459.794048][ T4217] raw: 00fff00000010200 dead000000000100 dead000000000122 ffff888016c42000
[  459.803197][ T4217] raw: 0000000000000000 0000000080080008 00000001ffffffff 0000000000000000
[  459.812532][ T4217] page dumped because: kasan: bad access detected
[  459.819039][ T4217] page_owner tracks the page as allocated
[  459.825103][ T4217] page last allocated via order 3, migratetype Unmovable, gfp_mask 0x1d20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 4293, ts 59528510196, free_ts 59527007834
[  459.847008][ T4217]  get_page_from_freelist+0x1bbd/0x1ca0
[  459.852645][ T4217]  __alloc_pages+0x1ee/0x480
[  459.857479][ T4217]  new_slab+0xc0/0x4b0
[  459.861574][ T4217]  ___slab_alloc+0x80a/0xdd0
[  459.866476][ T4217]  __kmalloc+0x1cd/0x330
[  459.871068][ T4217]  sk_prot_alloc+0xe7/0x210
[  459.875726][ T4217]  sk_alloc+0x2f/0x310
[  459.880032][ T4217]  __netlink_create+0x6b/0x2d0
[  459.884825][ T4217]  __netlink_kernel_create+0x14a/0x7d0
[  459.890462][ T4217]  uevent_net_init+0xf8/0x2d0
[  459.895120][ T4217]  ops_init+0x357/0x600
[  459.899359][ T4217]  setup_net+0x39e/0xa10
[  459.903578][ T4217]  copy_net_ns+0x348/0x5b0
[  459.907972][ T4217]  create_new_namespaces+0x3d3/0x6f0
[  459.913324][ T4217]  unshare_nsproxy_namespaces+0x116/0x160
[  459.919105][ T4217]  ksys_unshare+0x4ca/0x8b0
[  459.923668][ T4217] page last free stack trace:
[  459.928313][ T4217]  free_unref_page_prepare+0x637/0x6c0
[  459.933850][ T4217]  free_unref_page+0x8f/0x2a0
[  459.938853][ T4217]  free_nonslab_page+0xe2/0x150
[  459.943792][ T4217]  skb_release_data+0x6b8/0x800
[  459.948829][ T4217]  consume_skb+0xa2/0x100
[  459.953156][ T4217]  skb_free_datagram+0x25/0xe0
[  459.958045][ T4217]  netlink_recvmsg+0x5c6/0xe20
[  459.962887][ T4217]  ____sys_recvmsg+0x2cd/0x5e0
[  459.967803][ T4217]  ___sys_recvmsg+0x21a/0x5c0
[  459.972774][ T4217]  __x64_sys_recvmsg+0x1f9/0x2c0
[  459.977921][ T4217]  do_syscall_64+0x4c/0xa0
[  459.982352][ T4217]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  459.988442][ T4217] 
[  459.990757][ T4217] Memory state around the buggy address:
[  459.996493][ T4217]  ffff888027e93380: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  460.004581][ T4217]  ffff888027e93400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  460.012813][ T4217] >ffff888027e93480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  460.021242][ T4217]                       ^
[  460.025960][ T4217]  ffff888027e93500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  460.034730][ T4217]  ffff888027e93580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  460.043100][ T4217] ==================================================================
[  460.051335][ T4217] Disabling lock debugging due to kernel taint
[  460.057993][ T4217] Kernel panic - not syncing: KASAN: panic_on_warn set ...
[  460.065740][ T4217] CPU: 0 PID: 4217 Comm: kworker/u5:1 Tainted: G    B             syzkaller #0
[  460.074851][ T4217] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  460.085268][ T4217] Workqueue: hci0 hci_rx_work
[  460.090117][ T4217] Call Trace:
[  460.093560][ T4217]  <TASK>
[  460.096677][ T4217]  dump_stack_lvl+0x188/0x250
[  460.101615][ T4217]  ? show_regs_print_info+0x20/0x20
[  460.106929][ T4217]  ? load_image+0x400/0x400
[  460.112036][ T4217]  panic+0x2e5/0x810
[  460.116283][ T4217]  ? bpf_jit_dump+0xd0/0xd0
[  460.121157][ T4217]  ? _raw_spin_unlock_irqrestore+0x10d/0x120
[  460.127219][ T4217]  ? _raw_spin_unlock+0x40/0x40
[  460.132406][ T4217]  ? l2cap_connect_cfm+0x6ff/0x10f0
[  460.137776][ T4217]  check_panic_on_warn+0x80/0xa0
[  460.143189][ T4217]  ? l2cap_connect_cfm+0x6ff/0x10f0
[  460.148814][ T4217]  end_report+0x6d/0xf0
[  460.153061][ T4217]  kasan_report+0x102/0x130
[  460.157673][ T4217]  ? l2cap_connect_cfm+0x6ff/0x10f0
[  460.163339][ T4217]  l2cap_connect_cfm+0x6ff/0x10f0
[  460.168447][ T4217]  ? l2cap_ertm_resend+0x10d0/0x10d0
[  460.173729][ T4217]  ? l2cap_ertm_resend+0x10d0/0x10d0
[  460.179101][ T4217]  le_conn_complete_evt+0xd42/0x15c0
[  460.184864][ T4217]  ? cs_le_create_conn+0x5e0/0x5e0
[  460.190233][ T4217]  ? __mutex_trylock_common+0x155/0x260
[  460.195851][ T4217]  hci_le_meta_evt+0x285/0x3c90
[  460.200703][ T4217]  ? hci_event_packet+0x37b/0x1370
[  460.206136][ T4217]  ? __lock_acquire+0x7d10/0x7d10
[  460.211237][ T4217]  ? hci_remote_host_features_evt+0x280/0x280
[  460.217396][ T4217]  ? __mutex_unlock_slowpath+0x1b0/0x6c0
[  460.223542][ T4217]  ? mark_lock+0x94/0x320
[  460.228013][ T4217]  ? mutex_unlock+0x10/0x10
[  460.232691][ T4217]  ? lockdep_hardirqs_on_prepare+0x409/0x770
[  460.239533][ T4217]  ? lock_chain_count+0x20/0x20
[  460.244473][ T4217]  ? __rwlock_init+0x140/0x140
[  460.249676][ T4217]  hci_event_packet+0xe48/0x1370
[  460.254898][ T4217]  ? lockdep_hardirqs_on+0x94/0x140
[  460.260361][ T4217]  ? rcu_lock_release+0x20/0x20
[  460.265445][ T4217]  ? hci_send_to_monitor+0x9c/0x4a0
[  460.270724][ T4217]  hci_rx_work+0x255/0xa10
[  460.275124][ T4217]  process_one_work+0x85f/0x1010
[  460.280220][ T4217]  ? worker_detach_from_pool+0x240/0x240
[  460.285944][ T4217]  ? lockdep_hardirqs_off+0x70/0x100
[  460.291305][ T4217]  ? _raw_spin_lock_irq+0xb7/0xf0
[  460.296511][ T4217]  ? _raw_spin_lock_irqsave+0x100/0x100
[  460.302129][ T4217]  ? wq_worker_running+0x97/0x170
[  460.307148][ T4217]  worker_thread+0xaa6/0x1290
[  460.311917][ T4217]  kthread+0x436/0x520
[  460.316070][ T4217]  ? rcu_lock_release+0x20/0x20
[  460.320984][ T4217]  ? kthread_blkcg+0xd0/0xd0
[  460.325645][ T4217]  ret_from_fork+0x1f/0x30
[  460.330171][ T4217]  </TASK>
[  460.333621][ T4217] Kernel Offset: disabled
[  460.337949][ T4217] Rebooting in 86400 seconds..