DUID 00:04:bb:a2:40:ae:48:ac:17:b5:4c:fd:37:63:df:39:12:a9
forked to background, child pid 4644
[   34.586857][ T4645] 8021q: adding VLAN 0 to HW filter on device bond0
[   34.606165][ T4645] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: OK

syzkaller
syzkaller login: [   76.315860][ T2544] cfg80211: failed to load regulatory.db
Warning: Permanently added '10.128.0.145' (ECDSA) to the list of known hosts.
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[  198.904260][T14024] ==================================================================
[  198.912455][T14024] BUG: KASAN: use-after-free in io_wq_worker_running+0x114/0x130
[  198.920190][T14024] Read of size 4 at addr ffff8880711eec04 by task iou-wrk-14021/14024
[  198.928328][T14024] 
[  198.930646][T14024] CPU: 1 PID: 14024 Comm: iou-wrk-14021 Not tainted 6.2.0-rc2-syzkaller-00313-g9b43a525db12 #0
[  198.940987][T14024] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
[  198.951057][T14024] Call Trace:
[  198.954328][T14024]  <TASK>
[  198.957259][T14024]  dump_stack_lvl+0xd1/0x138
[  198.961850][T14024]  print_report+0x15e/0x45d
[  198.966355][T14024]  ? __phys_addr+0xc8/0x140
[  198.970864][T14024]  ? io_wq_worker_running+0x114/0x130
[  198.976233][T14024]  kasan_report+0xbf/0x1f0
[  198.980642][T14024]  ? io_wq_worker_running+0x114/0x130
[  198.986024][T14024]  io_wq_worker_running+0x114/0x130
[  198.991232][T14024]  schedule_preempt_disabled+0x13/0x20
[  198.996697][T14024]  __mutex_lock+0xa48/0x1360
[  199.001286][T14024]  ? io_buffer_select+0x8e5/0xbe0
[  199.006308][T14024]  ? mutex_lock_io_nested+0x11a0/0x11a0
[  199.011842][T14024]  ? __xa_clear_mark+0x120/0x120
[  199.016770][T14024]  io_buffer_select+0x8e5/0xbe0
[  199.021616][T14024]  io_recv+0x851/0x1140
[  199.025761][T14024]  ? io_recvmsg+0x1e00/0x1e00
[  199.030428][T14024]  ? lockdep_hardirqs_on_prepare+0x410/0x410
[  199.036401][T14024]  ? __lock_acquire+0x166e/0x56d0
[  199.041424][T14024]  ? find_held_lock+0x2d/0x110
[  199.046187][T14024]  ? io_recvmsg+0x1e00/0x1e00
[  199.050853][T14024]  io_issue_sqe+0x156/0x1220
[  199.055442][T14024]  ? do_raw_spin_lock+0x124/0x2b0
[  199.060473][T14024]  io_wq_submit_work+0x29c/0xdc0
[  199.065413][T14024]  io_worker_handle_work+0xc41/0x1c60
[  199.070791][T14024]  io_wqe_worker+0xa5b/0xe40
[  199.075399][T14024]  ? io_worker_handle_work+0x1c60/0x1c60
[  199.081046][T14024]  ? ret_from_fork+0x8/0x30
[  199.085578][T14024]  ? lock_downgrade+0x6e0/0x6e0
[  199.090427][T14024]  ? do_raw_spin_lock+0x124/0x2b0
[  199.095443][T14024]  ? rwlock_bug.part.0+0x90/0x90
[  199.100372][T14024]  ? _raw_spin_unlock_irq+0x23/0x50
[  199.105653][T14024]  ? io_worker_handle_work+0x1c60/0x1c60
[  199.111286][T14024]  ret_from_fork+0x1f/0x30
[  199.115702][T14024]  </TASK>
[  199.118707][T14024] 
[  199.121018][T14024] Allocated by task 14021:
[  199.125417][T14024]  kasan_save_stack+0x22/0x40
[  199.130088][T14024]  kasan_set_track+0x25/0x30
[  199.134668][T14024]  __kasan_kmalloc+0xa5/0xb0
[  199.139251][T14024]  create_io_worker+0x10c/0x630
[  199.144095][T14024]  io_wqe_enqueue+0x6c3/0xbc0
[  199.148784][T14024]  io_queue_iowq+0x282/0x5c0
[  199.153370][T14024]  io_queue_sqe_fallback+0xf3/0x190
[  199.158567][T14024]  io_submit_sqes+0x11db/0x1e60
[  199.163417][T14024]  __do_sys_io_uring_enter+0xc1d/0x2540
[  199.169220][T14024]  do_syscall_64+0x39/0xb0
[  199.173633][T14024]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[  199.179535][T14024] 
[  199.181849][T14024] Freed by task 14024:
[  199.185907][T14024]  kasan_save_stack+0x22/0x40
[  199.190572][T14024]  kasan_set_track+0x25/0x30
[  199.195151][T14024]  kasan_save_free_info+0x2e/0x40
[  199.200167][T14024]  ____kasan_slab_free+0x160/0x1c0
[  199.205275][T14024]  slab_free_freelist_hook+0x8b/0x1c0
[  199.210641][T14024]  __kmem_cache_free+0xaf/0x3b0
[  199.215479][T14024]  io_queue_worker_create+0x567/0x660
[  199.220842][T14024]  io_wqe_dec_running+0x1e4/0x240
[  199.225858][T14024]  io_wq_worker_sleeping+0xa6/0xc0
[  199.230962][T14024]  schedule+0x16e/0x1b0
[  199.235114][T14024]  schedule_preempt_disabled+0x13/0x20
[  199.240570][T14024]  __mutex_lock+0xa48/0x1360
[  199.245148][T14024]  io_buffer_select+0x8e5/0xbe0
[  199.250081][T14024]  io_recv+0x851/0x1140
[  199.254223][T14024]  io_issue_sqe+0x156/0x1220
[  199.258806][T14024]  io_wq_submit_work+0x29c/0xdc0
[  199.263737][T14024]  io_worker_handle_work+0xc41/0x1c60
[  199.269108][T14024]  io_wqe_worker+0xa5b/0xe40
[  199.273719][T14024]  ret_from_fork+0x1f/0x30
[  199.278162][T14024] 
[  199.280475][T14024] Last potentially related work creation:
[  199.286333][T14024]  kasan_save_stack+0x22/0x40
[  199.291040][T14024]  __kasan_record_aux_stack+0xbc/0xd0
[  199.296419][T14024]  task_work_add+0x7f/0x2c0
[  199.300928][T14024]  io_queue_worker_create+0x41d/0x660
[  199.306300][T14024]  io_wqe_dec_running+0x1e4/0x240
[  199.311321][T14024]  io_wq_worker_sleeping+0xa6/0xc0
[  199.316458][T14024]  schedule+0x16e/0x1b0
[  199.320612][T14024]  schedule_preempt_disabled+0x13/0x20
[  199.326071][T14024]  __mutex_lock+0xa48/0x1360
[  199.330673][T14024]  io_buffer_select+0x8e5/0xbe0
[  199.335518][T14024]  io_recv+0x851/0x1140
[  199.339678][T14024]  io_issue_sqe+0x156/0x1220
[  199.344262][T14024]  io_wq_submit_work+0x29c/0xdc0
[  199.349194][T14024]  io_worker_handle_work+0xc41/0x1c60
[  199.354577][T14024]  io_wqe_worker+0xa5b/0xe40
[  199.359165][T14024]  ret_from_fork+0x1f/0x30
[  199.363584][T14024] 
[  199.365897][T14024] The buggy address belongs to the object at ffff8880711eec00
[  199.365897][T14024]  which belongs to the cache kmalloc-512 of size 512
[  199.379973][T14024] The buggy address is located 4 bytes inside of
[  199.379973][T14024]  512-byte region [ffff8880711eec00, ffff8880711eee00)
[  199.393061][T14024] 
[  199.395376][T14024] The buggy address belongs to the physical page:
[  199.401770][T14024] page:ffffea0001c47b00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x711ec
[  199.411908][T14024] head:ffffea0001c47b00 order:2 compound_mapcount:0 subpages_mapcount:0 compound_pincount:0
[  199.421977][T14024] flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff)
[  199.429972][T14024] raw: 00fff00000010200 ffff888012441c80 ffffea0001c41300 dead000000000002
[  199.438544][T14024] raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000
[  199.447114][T14024] page dumped because: kasan: bad access detected
[  199.453509][T14024] page_owner tracks the page as allocated
[  199.459204][T14024] page last allocated via order 2, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 10034, tgid 9964 (syz-executor298), ts 183338734897, free_ts 183321124718
[  199.481094][T14024]  get_page_from_freelist+0x119c/0x2ce0
[  199.486645][T14024]  __alloc_pages+0x1cb/0x5b0
[  199.491243][T14024]  allocate_slab+0xa7/0x350
[  199.495742][T14024]  ___slab_alloc+0xa91/0x1400
[  199.500408][T14024]  __slab_alloc.constprop.0+0x56/0xa0
[  199.505790][T14024]  __kmem_cache_alloc_node+0x1a4/0x430
[  199.511239][T14024]  kmalloc_node_trace+0x21/0x60
[  199.516092][T14024]  create_io_worker+0x10c/0x630
[  199.520954][T14024]  io_wqe_enqueue+0x6c3/0xbc0
[  199.525625][T14024]  io_queue_iowq+0x282/0x5c0
[  199.530210][T14024]  io_queue_sqe_fallback+0xf3/0x190
[  199.535404][T14024]  io_submit_sqes+0x11db/0x1e60
[  199.540267][T14024]  __do_sys_io_uring_enter+0xc1d/0x2540
[  199.545808][T14024]  do_syscall_64+0x39/0xb0
[  199.550225][T14024]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[  199.556131][T14024] page last free stack trace:
[  199.560790][T14024]  free_pcp_prepare+0x65c/0xc00
[  199.565631][T14024]  free_unref_page+0x1d/0x490
[  199.570355][T14024]  __unfreeze_partials+0x17c/0x1a0
[  199.575464][T14024]  qlist_free_all+0x6a/0x170
[  199.580045][T14024]  kasan_quarantine_reduce+0x192/0x220
[  199.585499][T14024]  __kasan_slab_alloc+0x66/0x90
[  199.590345][T14024]  __kmem_cache_alloc_node+0x1ea/0x430
[  199.595818][T14024]  kmalloc_node_trace+0x21/0x60
[  199.600680][T14024]  create_io_worker+0x10c/0x630
[  199.605533][T14024]  io_wqe_enqueue+0x6c3/0xbc0
[  199.610201][T14024]  io_queue_iowq+0x282/0x5c0
[  199.614803][T14024]  io_queue_sqe_fallback+0xf3/0x190
[  199.619995][T14024]  io_submit_sqes+0x11db/0x1e60
[  199.624840][T14024]  __do_sys_io_uring_enter+0xc1d/0x2540
[  199.630378][T14024]  do_syscall_64+0x39/0xb0
[  199.634793][T14024]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[  199.640678][T14024] 
[  199.643006][T14024] Memory state around the buggy address:
[  199.648624][T14024]  ffff8880711eeb00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[  199.656672][T14024]  ffff8880711eeb80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[  199.664716][T14024] >ffff8880711eec00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  199.672759][T14024]                    ^
[  199.676822][T14024]  ffff8880711eec80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  199.684885][T14024]  ffff8880711eed00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  199.692957][T14024] ==================================================================
[  199.717345][T14024] Kernel panic - not syncing: KASAN: panic_on_warn set ...
[  199.724591][T14024] CPU: 1 PID: 14024 Comm: iou-wrk-14021 Not tainted 6.2.0-rc2-syzkaller-00313-g9b43a525db12 #0
[  199.734935][T14024] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
[  199.744989][T14024] Call Trace:
[  199.748268][T14024]  <TASK>
[  199.751205][T14024]  dump_stack_lvl+0xd1/0x138
[  199.755807][T14024]  panic+0x2cc/0x626
[  199.759706][T14024]  ? panic_print_sys_info.part.0+0x110/0x110
[  199.765695][T14024]  ? preempt_schedule_thunk+0x1a/0x20
[  199.771077][T14024]  ? preempt_schedule_common+0x59/0xc0
[  199.776543][T14024]  check_panic_on_warn.cold+0x19/0x35
[  199.782029][T14024]  end_report.part.0+0x36/0x73
[  199.786818][T14024]  ? io_wq_worker_running+0x114/0x130
[  199.792197][T14024]  kasan_report.cold+0xa/0xf
[  199.796789][T14024]  ? io_wq_worker_running+0x114/0x130
[  199.802158][T14024]  io_wq_worker_running+0x114/0x130
[  199.807361][T14024]  schedule_preempt_disabled+0x13/0x20
[  199.812839][T14024]  __mutex_lock+0xa48/0x1360
[  199.817436][T14024]  ? io_buffer_select+0x8e5/0xbe0
[  199.822529][T14024]  ? mutex_lock_io_nested+0x11a0/0x11a0
[  199.828085][T14024]  ? __xa_clear_mark+0x120/0x120
[  199.833028][T14024]  io_buffer_select+0x8e5/0xbe0
[  199.837875][T14024]  io_recv+0x851/0x1140
[  199.842035][T14024]  ? io_recvmsg+0x1e00/0x1e00
[  199.846723][T14024]  ? lockdep_hardirqs_on_prepare+0x410/0x410
[  199.852714][T14024]  ? __lock_acquire+0x166e/0x56d0
[  199.857741][T14024]  ? find_held_lock+0x2d/0x110
[  199.862509][T14024]  ? io_recvmsg+0x1e00/0x1e00
[  199.867181][T14024]  io_issue_sqe+0x156/0x1220
[  199.871766][T14024]  ? do_raw_spin_lock+0x124/0x2b0
[  199.876783][T14024]  io_wq_submit_work+0x29c/0xdc0
[  199.881713][T14024]  io_worker_handle_work+0xc41/0x1c60
[  199.887085][T14024]  io_wqe_worker+0xa5b/0xe40
[  199.891666][T14024]  ? io_worker_handle_work+0x1c60/0x1c60
[  199.897327][T14024]  ? ret_from_fork+0x8/0x30
[  199.901830][T14024]  ? lock_downgrade+0x6e0/0x6e0
[  199.906679][T14024]  ? do_raw_spin_lock+0x124/0x2b0
[  199.911702][T14024]  ? rwlock_bug.part.0+0x90/0x90
[  199.916632][T14024]  ? _raw_spin_unlock_irq+0x23/0x50
[  199.922447][T14024]  ? io_worker_handle_work+0x1c60/0x1c60
[  199.928087][T14024]  ret_from_fork+0x1f/0x30
[  199.932504][T14024]  </TASK>
[  199.935695][T14024] Kernel Offset: disabled
[  199.940016][T14024] Rebooting in 86400 seconds..