Warning: Permanently added '10.128.0.127' (ECDSA) to the list of known hosts.
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syzkaller login: [   76.394375][    T7] cfg80211: failed to load regulatory.db
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[   77.143457][ T6611] ==================================================================
[   77.151581][ T6611] BUG: KASAN: use-after-free in io_fallback_tw+0x6d/0x119
[   77.158739][ T6611] Read of size 8 at addr ffff888029afdbc8 by task syz-executor156/6611
[   77.167002][ T6611] 
[   77.169335][ T6611] CPU: 1 PID: 6611 Comm: syz-executor156 Not tainted 6.2.0-rc3-next-20230112-syzkaller #0
[   77.179251][ T6611] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
[   77.189327][ T6611] Call Trace:
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[   77.192620][ T6611]  <TASK>
[   77.195561][ T6611]  dump_stack_lvl+0xd1/0x138
[   77.200189][ T6611]  print_report+0x15e/0x45d
[   77.204725][ T6611]  ? __phys_addr+0xc8/0x140
[   77.209263][ T6611]  ? io_fallback_tw+0x6d/0x119
[   77.214060][ T6611]  kasan_report+0xc0/0xf0
[   77.218429][ T6611]  ? io_fallback_tw+0x6d/0x119
[   77.223225][ T6611]  io_fallback_tw+0x6d/0x119
[   77.227842][ T6611]  tctx_task_work.cold+0xf/0x2c
[   77.232720][ T6611]  ? handle_tw_list+0x460/0x460
[   77.237600][ T6611]  ? lock_downgrade+0x6e0/0x6e0
executing program
[   77.242477][ T6611]  ? do_raw_spin_lock+0x124/0x2b0
[   77.247530][ T6611]  ? rwlock_bug.part.0+0x90/0x90
[   77.252492][ T6611]  ? _raw_spin_unlock_irq+0x23/0x50
[   77.257728][ T6611]  task_work_run+0x16f/0x270
[   77.262355][ T6611]  ? task_work_cancel+0x30/0x30
[   77.267240][ T6611]  ? do_raw_spin_unlock+0x175/0x230
[   77.272469][ T6611]  do_exit+0xb17/0x2a90
[   77.276669][ T6611]  ? find_held_lock+0x2d/0x110
[   77.281506][ T6611]  ? get_signal+0x8a0/0x24f0
[   77.286123][ T6611]  ? mm_update_next_owner+0x7b0/0x7b0
executing program
executing program
executing program
[   77.291539][ T6611]  do_group_exit+0xd4/0x2a0
[   77.296085][ T6611]  get_signal+0x225f/0x24f0
[   77.300615][ T6611]  ? exit_signals+0x910/0x910
[   77.305310][ T6611]  ? find_held_lock+0x2d/0x110
[   77.310112][ T6611]  arch_do_signal_or_restart+0x79/0x5c0
[   77.315687][ T6611]  ? get_sigframe_size+0x10/0x10
[   77.320670][ T6611]  ? up_write+0x520/0x520
[   77.325043][ T6611]  exit_to_user_mode_prepare+0x11f/0x240
[   77.330709][ T6611]  irqentry_exit_to_user_mode+0x9/0x40
[   77.336199][ T6611]  exc_page_fault+0xc0/0x170
executing program
executing program
[   77.340824][ T6611]  asm_exc_page_fault+0x26/0x30
[   77.345707][ T6611] RIP: 0033:0x7f2fc4119818
[   77.350139][ T6611] Code: Unable to access opcode bytes at 0x7f2fc41197ee.
[   77.357180][ T6611] RSP: 002b:00007ffe648c43d8 EFLAGS: 00010202
[   77.363270][ T6611] RAX: 00007f2fc4148b90 RBX: 00007f2fc4147170 RCX: 0000000000000001
[   77.371258][ T6611] RDX: 00007f2fc40996e0 RSI: 0000000000000000 RDI: 00007f2fc4148b90
[   77.379260][ T6611] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
executing program
executing program
[   77.387254][ T6611] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[   77.395250][ T6611] R13: 0000000000000001 R14: 00007f2fc4149e80 R15: 0000000000000001
[   77.403248][ T6611]  </TASK>
[   77.406283][ T6611] 
[   77.408709][ T6611] Allocated by task 6611:
[   77.413070][ T6611]  kasan_save_stack+0x22/0x40
[   77.417774][ T6611]  kasan_set_track+0x25/0x30
[   77.422388][ T6611]  __kasan_slab_alloc+0x7f/0x90
[   77.427266][ T6611]  kmem_cache_alloc_bulk+0x3aa/0x730
[   77.432572][ T6611]  __io_alloc_req_refill+0xcc/0x40b
[   77.437803][ T6611]  io_submit_sqes.cold+0x7c/0xc2
executing program
executing program
executing program
executing program
[   77.442770][ T6611]  __do_sys_io_uring_enter+0x9e4/0x2c10
[   77.448356][ T6611]  do_syscall_64+0x39/0xb0
[   77.452801][ T6611]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[   77.458730][ T6611] 
[   77.461071][ T6611] Freed by task 5107:
[   77.465065][ T6611]  kasan_save_stack+0x22/0x40
[   77.469773][ T6611]  kasan_set_track+0x25/0x30
[   77.475275][ T6611]  kasan_save_free_info+0x2e/0x40
[   77.480331][ T6611]  ____kasan_slab_free+0x160/0x1c0
[   77.485472][ T6611]  slab_free_freelist_hook+0x8b/0x1c0
executing program
executing program
executing program
[   77.490869][ T6611]  kmem_cache_free+0xec/0x4e0
[   77.495574][ T6611]  io_req_caches_free+0x1a9/0x1e6
[   77.500627][ T6611]  io_ring_exit_work+0x2e7/0xc80
[   77.505592][ T6611]  process_one_work+0x9bf/0x1750
[   77.510557][ T6611]  worker_thread+0x669/0x1090
[   77.515262][ T6611]  kthread+0x2e8/0x3a0
[   77.519355][ T6611]  ret_from_fork+0x1f/0x30
[   77.523802][ T6611] 
[   77.526132][ T6611] The buggy address belongs to the object at ffff888029afdb40
[   77.526132][ T6611]  which belongs to the cache io_kiocb of size 216
executing program
executing program
[   77.539943][ T6611] The buggy address is located 136 bytes inside of
[   77.539943][ T6611]  216-byte region [ffff888029afdb40, ffff888029afdc18)
[   77.553246][ T6611] 
[   77.555614][ T6611] The buggy address belongs to the physical page:
[   77.562029][ T6611] page:ffffea0000a6bf40 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x29afd
[   77.572214][ T6611] flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff)
[   77.579790][ T6611] raw: 00fff00000000200 ffff888146368780 ffffea0001f8ae80 dead000000000004
executing program
executing program
[   77.588406][ T6611] raw: 0000000000000000 00000000800c000c 00000001ffffffff 0000000000000000
[   77.597004][ T6611] page dumped because: kasan: bad access detected
[   77.603438][ T6611] page_owner tracks the page as allocated
[   77.609164][ T6611] page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY), pid 5645, tgid 5645 (syz-executor156), ts 71169983042, free_ts 71162256002
[   77.627774][ T6611]  get_page_from_freelist+0x11bb/0x2d50
[   77.633357][ T6611]  __alloc_pages+0x1cb/0x5c0
[   77.637980][ T6611]  alloc_pages+0x1aa/0x270
executing program
[   77.642423][ T6611]  allocate_slab+0x25f/0x350
[   77.647035][ T6611]  ___slab_alloc+0xa91/0x1400
[   77.651737][ T6611]  kmem_cache_alloc_bulk+0x23d/0x730
[   77.657052][ T6611]  __io_alloc_req_refill+0xcc/0x40b
[   77.662275][ T6611]  io_submit_sqes.cold+0x7c/0xc2
[   77.667238][ T6611]  __do_sys_io_uring_enter+0x9e4/0x2c10
[   77.672810][ T6611]  do_syscall_64+0x39/0xb0
[   77.677247][ T6611]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[   77.683167][ T6611] page last free stack trace:
[   77.687840][ T6611]  free_pcp_prepare+0x4d0/0x910
[   77.692710][ T6611]  free_unref_page_list+0x176/0xcd0
[   77.697929][ T6611]  release_pages+0xcb1/0x1330
[   77.702629][ T6611]  tlb_batch_pages_flush+0xa8/0x1a0
[   77.707848][ T6611]  tlb_finish_mmu+0x14b/0x7e0
[   77.712539][ T6611]  exit_mmap+0x202/0x7c0
[   77.716801][ T6611]  __mmput+0x128/0x4c0
[   77.720887][ T6611]  mmput+0x60/0x70
[   77.724624][ T6611]  do_exit+0x9ac/0x2a90
[   77.728810][ T6611]  do_group_exit+0xd4/0x2a0
[   77.733345][ T6611]  __x64_sys_exit_group+0x3e/0x50
[   77.738383][ T6611]  do_syscall_64+0x39/0xb0
[   77.742817][ T6611]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[   77.748736][ T6611] 
[   77.751063][ T6611] Memory state around the buggy address:
[   77.756695][ T6611]  ffff888029afda80: fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc
[   77.764770][ T6611]  ffff888029afdb00: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb
[   77.772843][ T6611] >ffff888029afdb80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   77.780908][ T6611]                                               ^
[   77.787323][ T6611]  ffff888029afdc00: fb fb fb fc fc fc fc fc fc fc fc fc fc fc fc fc
executing program
executing program
[   77.795391][ T6611]  ffff888029afdc80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   77.803457][ T6611] ==================================================================
[   77.819296][ T6611] Kernel panic - not syncing: KASAN: panic_on_warn set ...
[   77.826522][ T6611] CPU: 1 PID: 6611 Comm: syz-executor156 Not tainted 6.2.0-rc3-next-20230112-syzkaller #0
[   77.836437][ T6611] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
[   77.846508][ T6611] Call Trace:
[   77.849801][ T6611]  <TASK>
[   77.852750][ T6611]  dump_stack_lvl+0xd1/0x138
[   77.857362][ T6611]  panic+0x2cc/0x626
[   77.861295][ T6611]  ? panic_print_sys_info.part.0+0x112/0x112
[   77.867312][ T6611]  ? preempt_schedule_thunk+0x1a/0x20
[   77.872709][ T6611]  ? preempt_schedule_common+0x59/0xc0
[   77.878184][ T6611]  check_panic_on_warn.cold+0x19/0x35
[   77.883574][ T6611]  end_report.part.0+0x36/0x73
[   77.888344][ T6611]  ? io_fallback_tw+0x6d/0x119
[   77.893114][ T6611]  kasan_report.cold+0xa/0xf
[   77.897709][ T6611]  ? io_fallback_tw+0x6d/0x119
[   77.902482][ T6611]  io_fallback_tw+0x6d/0x119
[   77.907082][ T6611]  tctx_task_work.cold+0xf/0x2c
[   77.911941][ T6611]  ? handle_tw_list+0x460/0x460
[   77.916802][ T6611]  ? lock_downgrade+0x6e0/0x6e0
[   77.921659][ T6611]  ? do_raw_spin_lock+0x124/0x2b0
[   77.926695][ T6611]  ? rwlock_bug.part.0+0x90/0x90
[   77.931642][ T6611]  ? _raw_spin_unlock_irq+0x23/0x50
[   77.936862][ T6611]  task_work_run+0x16f/0x270
[   77.941466][ T6611]  ? task_work_cancel+0x30/0x30
[   77.946332][ T6611]  ? do_raw_spin_unlock+0x175/0x230
[   77.951554][ T6611]  do_exit+0xb17/0x2a90
[   77.955749][ T6611]  ? find_held_lock+0x2d/0x110
[   77.960551][ T6611]  ? get_signal+0x8a0/0x24f0
[   77.965157][ T6611]  ? mm_update_next_owner+0x7b0/0x7b0
[   77.970655][ T6611]  do_group_exit+0xd4/0x2a0
[   77.975190][ T6611]  get_signal+0x225f/0x24f0
[   77.979710][ T6611]  ? exit_signals+0x910/0x910
[   77.984397][ T6611]  ? find_held_lock+0x2d/0x110
[   77.989188][ T6611]  arch_do_signal_or_restart+0x79/0x5c0
[   77.994745][ T6611]  ? get_sigframe_size+0x10/0x10
[   77.999694][ T6611]  ? up_write+0x520/0x520
[   78.004047][ T6611]  exit_to_user_mode_prepare+0x11f/0x240
[   78.009693][ T6611]  irqentry_exit_to_user_mode+0x9/0x40
[   78.015171][ T6611]  exc_page_fault+0xc0/0x170
[   78.020210][ T6611]  asm_exc_page_fault+0x26/0x30
[   78.025077][ T6611] RIP: 0033:0x7f2fc4119818
[   78.029495][ T6611] Code: Unable to access opcode bytes at 0x7f2fc41197ee.
[   78.036508][ T6611] RSP: 002b:00007ffe648c43d8 EFLAGS: 00010202
[   78.042581][ T6611] RAX: 00007f2fc4148b90 RBX: 00007f2fc4147170 RCX: 0000000000000001
[   78.050555][ T6611] RDX: 00007f2fc40996e0 RSI: 0000000000000000 RDI: 00007f2fc4148b90
[   78.058529][ T6611] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   78.066504][ T6611] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[   78.074477][ T6611] R13: 0000000000000001 R14: 00007f2fc4149e80 R15: 0000000000000001
[   78.082457][ T6611]  </TASK>
[   78.085620][ T6611] Kernel Offset: disabled
[   78.089942][ T6611] Rebooting in 86400 seconds..