DUID 00:04:64:fe:60:40:6b:21:45:e2:2b:76:87:02:d2:43:fb:60
forked to background, child pid 4670
[   49.119626][ T4671] 8021q: adding VLAN 0 to HW filter on device bond0
[   49.147789][ T4671] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: OK

syzkaller
syzkaller login: [   91.905893][    T7] cfg80211: failed to load regulatory.db
Warning: Permanently added '10.128.0.172' (ECDSA) to the list of known hosts.
[ 1585.894410][ T5110] Bluetooth: hci5: unexpected cc 0x0c03 length: 249 > 1
[ 1585.897182][ T5111] Bluetooth: hci2: unexpected cc 0x0c03 length: 249 > 1
[ 1585.902832][ T5110] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1
[ 1585.910345][ T5111] Bluetooth: hci3: unexpected cc 0x0c03 length: 249 > 1
[ 1585.918082][ T5110] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1
[ 1585.924153][ T5111] Bluetooth: hci4: unexpected cc 0x0c03 length: 249 > 1
[ 1585.931529][ T5110] Bluetooth: hci5: unexpected cc 0x1003 length: 249 > 9
[ 1585.938257][ T5111] Bluetooth: hci2: unexpected cc 0x1003 length: 249 > 9
[ 1585.944911][ T5110] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9
[ 1585.951176][ T5111] Bluetooth: hci3: unexpected cc 0x1003 length: 249 > 9
[ 1585.959627][ T5110] Bluetooth: hci5: unexpected cc 0x1001 length: 249 > 9
[ 1585.965485][ T5111] Bluetooth: hci2: unexpected cc 0x1001 length: 249 > 9
[ 1585.972090][ T5110] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9
[ 1585.978763][ T5111] Bluetooth: hci4: unexpected cc 0x1003 length: 249 > 9
[ 1585.986573][ T5110] Bluetooth: hci3: unexpected cc 0x1001 length: 249 > 9
[ 1585.994481][ T5111] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9
[ 1586.001731][ T5110] Bluetooth: hci4: unexpected cc 0x1001 length: 249 > 9
[ 1586.014618][ T5110] Bluetooth: hci5: unexpected cc 0x0c23 length: 249 > 4
[ 1586.014779][ T5111] Bluetooth: hci2: unexpected cc 0x0c23 length: 249 > 4
[ 1586.021945][ T5110] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4
[ 1586.029743][ T5111] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9
[ 1586.037378][ T5110] Bluetooth: hci5: unexpected cc 0x0c25 length: 249 > 3
[ 1586.043127][ T5111] Bluetooth: hci2: unexpected cc 0x0c25 length: 249 > 3
[ 1586.050133][ T5110] Bluetooth: hci5: unexpected cc 0x0c38 length: 249 > 2
[ 1586.057056][ T5111] Bluetooth: hci4: unexpected cc 0x0c23 length: 249 > 4
[ 1586.064207][ T5110] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3
[ 1586.071671][ T5112] Bluetooth: hci3: unexpected cc 0x0c23 length: 249 > 4
[ 1586.078376][ T5110] Bluetooth: hci2: unexpected cc 0x0c38 length: 249 > 2
[ 1586.085474][ T5112] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2
[ 1586.100235][ T4409] Bluetooth: hci4: unexpected cc 0x0c25 length: 249 > 3
[ 1586.113690][ T4409] Bluetooth: hci4: unexpected cc 0x0c38 length: 249 > 2
[ 1586.114473][ T5112] Bluetooth: hci3: unexpected cc 0x0c25 length: 249 > 3
[ 1586.153697][ T5109] Bluetooth: hci3: unexpected cc 0x0c38 length: 249 > 2
[ 1586.162255][ T5110] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4
[ 1586.172397][ T5110] Bluetooth: hci1: unexpected cc 0x0c25 length: 249 > 3
[ 1586.179875][ T5110] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2
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[ 1588.144640][ T5108] Bluetooth: hci4: command 0x0409 tx timeout
[ 1588.144668][ T5110] Bluetooth: hci0: command 0x0409 tx timeout
[ 1588.144994][ T5110] Bluetooth: hci2: command 0x0409 tx timeout
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[ 1588.223540][ T5110] Bluetooth: hci5: command 0x0409 tx timeout
[ 1588.223569][ T5113] Bluetooth: hci1: command 0x0409 tx timeout
[ 1588.223817][ T5113] Bluetooth: hci3: command 0x0409 tx timeout
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[ 1590.223415][ T5113] Bluetooth: hci4: command 0x041b tx timeout
[ 1590.223548][ T5108] Bluetooth: hci2: command 0x041b tx timeout
[ 1590.229513][ T5113] Bluetooth: hci0: command 0x041b tx timeout
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[ 1590.303381][ T5113] Bluetooth: hci5: command 0x041b tx timeout
[ 1590.303589][ T5108] Bluetooth: hci1: command 0x041b tx timeout
[ 1590.313650][ T5110] Bluetooth: hci3: command 0x041b tx timeout
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[ 1592.303530][ T5108] Bluetooth: hci0: command 0x040f tx timeout
[ 1592.303547][ T5113] Bluetooth: hci2: command 0x040f tx timeout
[ 1592.303589][ T5113] Bluetooth: hci4: command 0x040f tx timeout
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[ 1592.383402][ T5113] Bluetooth: hci3: command 0x040f tx timeout
[ 1592.389617][ T5113] Bluetooth: hci1: command 0x040f tx timeout
[ 1592.396613][ T5110] Bluetooth: hci5: command 0x040f tx timeout
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[ 1592.728417][ T5093] ==================================================================
[ 1592.736538][ T5093] BUG: KASAN: slab-use-after-free in hci_conn_hash_flush+0x244/0x270
[ 1592.744814][ T5093] Read of size 8 at addr ffff888015af2000 by task syz-executor326/5093
[ 1592.753197][ T5093] 
[ 1592.755550][ T5093] CPU: 0 PID: 5093 Comm: syz-executor326 Not tainted 6.3.0-syzkaller-13379-ged23734c23d2 #0
[ 1592.765663][ T5093] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
[ 1592.775764][ T5093] Call Trace:
[ 1592.779114][ T5093]  <TASK>
[ 1592.782099][ T5093]  dump_stack_lvl+0xd9/0x150
[ 1592.786939][ T5093]  print_address_description.constprop.0+0x2c/0x3c0
[ 1592.793704][ T5093]  ? hci_conn_hash_flush+0x244/0x270
[ 1592.799023][ T5093]  kasan_report+0x11c/0x130
[ 1592.803567][ T5093]  ? hci_conn_hash_flush+0x244/0x270
[ 1592.809070][ T5093]  hci_conn_hash_flush+0x244/0x270
[ 1592.814391][ T5093]  hci_dev_close_sync+0x5fb/0x1200
[ 1592.819575][ T5093]  ? hci_reset_sync+0x50/0x50
[ 1592.824276][ T5093]  ? __kmem_cache_free+0xaf/0x2d0
[ 1592.829340][ T5093]  hci_dev_do_close+0x31/0x70
[ 1592.834071][ T5093]  hci_unregister_dev+0x1ce/0x580
[ 1592.839226][ T5093]  vhci_release+0x80/0xf0
[ 1592.843637][ T5093]  __fput+0x27c/0xa90
[ 1592.847744][ T5093]  ? vhci_close_dev+0x50/0x50
[ 1592.852618][ T5093]  task_work_run+0x16f/0x270
[ 1592.857860][ T5093]  ? task_work_cancel+0x30/0x30
[ 1592.862736][ T5093]  do_exit+0xad3/0x2960
[ 1592.866928][ T5093]  ? lock_downgrade+0x690/0x690
[ 1592.871828][ T5093]  ? do_raw_spin_lock+0x124/0x2b0
[ 1592.876991][ T5093]  ? mm_update_next_owner+0x7b0/0x7b0
[ 1592.882385][ T5093]  ? spin_bug+0x1c0/0x1c0
[ 1592.886815][ T5093]  ? _raw_spin_unlock_irq+0x23/0x50
[ 1592.892114][ T5093]  do_group_exit+0xd4/0x2a0
[ 1592.896642][ T5093]  __x64_sys_exit_group+0x3e/0x50
[ 1592.901691][ T5093]  do_syscall_64+0x39/0xb0
[ 1592.906185][ T5093]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 1592.912165][ T5093] RIP: 0033:0x7fcb3b5c0f79
[ 1592.916597][ T5093] Code: Unable to access opcode bytes at 0x7fcb3b5c0f4f.
[ 1592.923625][ T5093] RSP: 002b:00007fff0438aab8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[ 1592.932059][ T5093] RAX: ffffffffffffffda RBX: 00007fcb3b64b470 RCX: 00007fcb3b5c0f79
[ 1592.940048][ T5093] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
[ 1592.948032][ T5093] RBP: 0000000000000001 R08: ffffffffffffffb8 R09: 0000000000000004
[ 1592.956022][ T5093] R10: 00007fff0438a8a6 R11: 0000000000000246 R12: 00007fcb3b64b470
[ 1592.964012][ T5093] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001
[ 1592.972011][ T5093]  </TASK>
[ 1592.975067][ T5093] 
[ 1592.977401][ T5093] Allocated by task 5117:
[ 1592.981837][ T5093]  kasan_save_stack+0x22/0x40
[ 1592.986559][ T5093]  kasan_set_track+0x25/0x30
[ 1592.991182][ T5093]  __kasan_kmalloc+0xa2/0xb0
[ 1592.995806][ T5093]  hci_conn_add+0xb8/0x16b0
[ 1593.000427][ T5093]  hci_connect_sco+0x3c7/0x1050
[ 1593.005304][ T5093]  sco_sock_connect+0x2d7/0xae0
[ 1593.010199][ T5093]  __sys_connect_file+0x153/0x1a0
[ 1593.015351][ T5093]  __sys_connect+0x165/0x1a0
[ 1593.019961][ T5093]  __x64_sys_connect+0x73/0xb0
[ 1593.024748][ T5093]  do_syscall_64+0x39/0xb0
[ 1593.029203][ T5093]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 1593.035131][ T5093] 
[ 1593.037464][ T5093] Freed by task 5093:
[ 1593.041452][ T5093]  kasan_save_stack+0x22/0x40
[ 1593.046165][ T5093]  kasan_set_track+0x25/0x30
[ 1593.050822][ T5093]  kasan_save_free_info+0x2e/0x40
[ 1593.055868][ T5093]  ____kasan_slab_free+0x160/0x1c0
[ 1593.061020][ T5093]  slab_free_freelist_hook+0x8b/0x1c0
[ 1593.066420][ T5093]  __kmem_cache_free+0xaf/0x2d0
[ 1593.071304][ T5093]  device_release+0xa3/0x240
[ 1593.075944][ T5093]  kobject_put+0x1c2/0x4d0
[ 1593.080379][ T5093]  put_device+0x1f/0x30
[ 1593.084556][ T5093]  hci_conn_del+0x1e5/0x950
[ 1593.089085][ T5093]  hci_conn_unlink+0x2ce/0x460
[ 1593.093881][ T5093]  hci_conn_unlink+0x362/0x460
[ 1593.098683][ T5093]  hci_conn_hash_flush+0x19b/0x270
[ 1593.103828][ T5093]  hci_dev_close_sync+0x5fb/0x1200
[ 1593.108958][ T5093]  hci_dev_do_close+0x31/0x70
[ 1593.113669][ T5093]  hci_unregister_dev+0x1ce/0x580
[ 1593.118728][ T5093]  vhci_release+0x80/0xf0
[ 1593.123075][ T5093]  __fput+0x27c/0xa90
[ 1593.127074][ T5093]  task_work_run+0x16f/0x270
[ 1593.131680][ T5093]  do_exit+0xad3/0x2960
[ 1593.135862][ T5093]  do_group_exit+0xd4/0x2a0
[ 1593.140386][ T5093]  __x64_sys_exit_group+0x3e/0x50
[ 1593.145431][ T5093]  do_syscall_64+0x39/0xb0
[ 1593.149893][ T5093]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 1593.155824][ T5093] 
[ 1593.158158][ T5093] Last potentially related work creation:
[ 1593.163883][ T5093]  kasan_save_stack+0x22/0x40
[ 1593.168610][ T5093]  __kasan_record_aux_stack+0xbc/0xd0
[ 1593.173999][ T5093]  insert_work+0x48/0x360
[ 1593.178354][ T5093]  __queue_work+0x625/0x1120
[ 1593.182971][ T5093]  __queue_delayed_work+0x1c8/0x270
[ 1593.188202][ T5093]  queue_delayed_work_on+0x109/0x120
[ 1593.193523][ T5093]  sco_chan_del+0x1f8/0x4f0
[ 1593.198047][ T5093]  __sco_sock_close+0x178/0x740
[ 1593.202920][ T5093]  sco_sock_release+0x81/0x360
[ 1593.207712][ T5093]  __sock_release+0xcd/0x290
[ 1593.212338][ T5093]  sock_close+0x1c/0x20
[ 1593.216528][ T5093]  __fput+0x27c/0xa90
[ 1593.220533][ T5093]  task_work_run+0x16f/0x270
[ 1593.225139][ T5093]  do_exit+0xad3/0x2960
[ 1593.229313][ T5093]  do_group_exit+0xd4/0x2a0
[ 1593.233837][ T5093]  get_signal+0x2315/0x25b0
[ 1593.238364][ T5093]  arch_do_signal_or_restart+0x79/0x5c0
[ 1593.243956][ T5093]  exit_to_user_mode_prepare+0x11f/0x240
[ 1593.249633][ T5093]  syscall_exit_to_user_mode+0x1d/0x50
[ 1593.255248][ T5093]  do_syscall_64+0x46/0xb0
[ 1593.259701][ T5093]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 1593.265644][ T5093] 
[ 1593.267977][ T5093] The buggy address belongs to the object at ffff888015af2000
[ 1593.267977][ T5093]  which belongs to the cache kmalloc-4k of size 4096
[ 1593.282040][ T5093] The buggy address is located 0 bytes inside of
[ 1593.282040][ T5093]  freed 4096-byte region [ffff888015af2000, ffff888015af3000)
[ 1593.295943][ T5093] 
[ 1593.298272][ T5093] The buggy address belongs to the physical page:
[ 1593.304688][ T5093] page:ffffea000056bc00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x15af0
[ 1593.314856][ T5093] head:ffffea000056bc00 order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 1593.323890][ T5093] flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff)
[ 1593.332317][ T5093] page_type: 0xffffffff()
[ 1593.336664][ T5093] raw: 00fff00000010200 ffff888012442140 dead000000000100 dead000000000122
[ 1593.345351][ T5093] raw: 0000000000000000 0000000000040004 00000001ffffffff 0000000000000000
[ 1593.353944][ T5093] page dumped because: kasan: bad access detected
[ 1593.360360][ T5093] page_owner tracks the page as allocated
[ 1593.366078][ T5093] page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1, tgid 1 (swapper/0), ts 3222232596, free_ts 0
[ 1593.385725][ T5093]  post_alloc_hook+0x2db/0x350
[ 1593.390543][ T5093]  get_page_from_freelist+0xf41/0x2c00
[ 1593.396033][ T5093]  __alloc_pages+0x1cb/0x4a0
[ 1593.400672][ T5093]  alloc_page_interleave+0x1e/0x200
[ 1593.405898][ T5093]  alloc_pages+0x233/0x270
[ 1593.410350][ T5093]  allocate_slab+0x25f/0x390
[ 1593.414982][ T5093]  ___slab_alloc+0xa91/0x1400
[ 1593.419712][ T5093]  __slab_alloc.constprop.0+0x56/0xa0
[ 1593.425140][ T5093]  __kmem_cache_alloc_node+0x136/0x320
[ 1593.430633][ T5093]  kmalloc_trace+0x26/0xe0
[ 1593.435087][ T5093]  kobject_uevent_env+0x232/0x16c0
[ 1593.440257][ T5093]  driver_register+0x2df/0x4a0
[ 1593.445051][ T5093]  usb_register_driver+0x251/0x500
[ 1593.450228][ T5093]  usb_init+0x16c/0x250
[ 1593.454485][ T5093]  do_one_initcall+0x102/0x540
[ 1593.459310][ T5093]  kernel_init_freeable+0x64e/0xba0
[ 1593.464543][ T5093] page_owner free stack trace missing
[ 1593.469929][ T5093] 
[ 1593.472258][ T5093] Memory state around the buggy address:
[ 1593.477901][ T5093]  ffff888015af1f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 1593.485993][ T5093]  ffff888015af1f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 1593.494071][ T5093] >ffff888015af2000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 1593.502143][ T5093]                    ^
[ 1593.506216][ T5093]  ffff888015af2080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 1593.514288][ T5093]  ffff888015af2100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 1593.522355][ T5093] ==================================================================
[ 1593.541920][ T5093] Kernel panic - not syncing: KASAN: panic_on_warn set ...
[ 1593.549185][ T5093] CPU: 1 PID: 5093 Comm: syz-executor326 Not tainted 6.3.0-syzkaller-13379-ged23734c23d2 #0
[ 1593.559295][ T5093] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
[ 1593.569392][ T5093] Call Trace:
[ 1593.572701][ T5093]  <TASK>
[ 1593.575667][ T5093]  dump_stack_lvl+0xd9/0x150
[ 1593.580331][ T5093]  panic+0x686/0x730
[ 1593.584287][ T5093]  ? panic_smp_self_stop+0xa0/0xa0
executing program
executing program
[ 1593.589452][ T5093]  ? preempt_schedule_thunk+0x1a/0x20
[ 1593.594883][ T5093]  ? preempt_schedule_common+0x45/0xb0
[ 1593.600401][ T5093]  check_panic_on_warn+0xb1/0xc0
[ 1593.605396][ T5093]  end_report+0xe9/0x120
[ 1593.609670][ T5093]  ? hci_conn_hash_flush+0x244/0x270
[ 1593.614988][ T5093]  kasan_report+0xf9/0x130
[ 1593.619467][ T5093]  ? hci_conn_hash_flush+0x244/0x270
[ 1593.624804][ T5093]  hci_conn_hash_flush+0x244/0x270
[ 1593.629956][ T5093]  hci_dev_close_sync+0x5fb/0x1200
[ 1593.635172][ T5093]  ? hci_reset_sync+0x50/0x50
[ 1593.639880][ T5093]  ? __kmem_cache_free+0xaf/0x2d0
[ 1593.644969][ T5093]  hci_dev_do_close+0x31/0x70
[ 1593.649701][ T5093]  hci_unregister_dev+0x1ce/0x580
[ 1593.654757][ T5093]  vhci_release+0x80/0xf0
[ 1593.659115][ T5093]  __fput+0x27c/0xa90
[ 1593.663133][ T5093]  ? vhci_close_dev+0x50/0x50
[ 1593.667831][ T5093]  task_work_run+0x16f/0x270
[ 1593.672460][ T5093]  ? task_work_cancel+0x30/0x30
[ 1593.677331][ T5093]  do_exit+0xad3/0x2960
[ 1593.681500][ T5093]  ? lock_downgrade+0x690/0x690
[ 1593.686462][ T5093]  ? do_raw_spin_lock+0x124/0x2b0
[ 1593.691521][ T5093]  ? mm_update_next_owner+0x7b0/0x7b0
[ 1593.696910][ T5093]  ? spin_bug+0x1c0/0x1c0
[ 1593.701261][ T5093]  ? _raw_spin_unlock_irq+0x23/0x50
[ 1593.706514][ T5093]  do_group_exit+0xd4/0x2a0
[ 1593.711072][ T5093]  __x64_sys_exit_group+0x3e/0x50
[ 1593.716132][ T5093]  do_syscall_64+0x39/0xb0
[ 1593.720603][ T5093]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 1593.726541][ T5093] RIP: 0033:0x7fcb3b5c0f79
[ 1593.730989][ T5093] Code: Unable to access opcode bytes at 0x7fcb3b5c0f4f.
[ 1593.738033][ T5093] RSP: 002b:00007fff0438aab8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[ 1593.746495][ T5093] RAX: ffffffffffffffda RBX: 00007fcb3b64b470 RCX: 00007fcb3b5c0f79
[ 1593.754474][ T5093] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
[ 1593.762558][ T5093] RBP: 0000000000000001 R08: ffffffffffffffb8 R09: 0000000000000004
[ 1593.770537][ T5093] R10: 00007fff0438a8a6 R11: 0000000000000246 R12: 00007fcb3b64b470
[ 1593.778519][ T5093] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001
[ 1593.786519][ T5093]  </TASK>
[ 1593.789785][ T5093] Kernel Offset: disabled
[ 1593.794224][ T5093] Rebooting in 86400 seconds..