[   29.688571] ==================================================================
[   29.690101] BUG: KASAN: slab-use-after-free in kmem_cache_double_destroy+0x1bd/0x380
[   29.690934] Read of size 1 at addr ffff888101627dc0 by task kunit_try_catch/222
[   29.692621] 
[   29.692827] CPU: 0 UID: 0 PID: 222 Comm: kunit_try_catch Tainted: G    B            N 6.12.0-next-20241120 #1
[   29.694474] Tainted: [B]=BAD_PAGE, [N]=TEST
[   29.695079] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   29.696224] Call Trace:
[   29.696507]  <TASK>
[   29.697518]  dump_stack_lvl+0x73/0xb0
[   29.698076]  print_report+0xd1/0x640
[   29.698837]  ? __virt_addr_valid+0x1db/0x2d0
[   29.699130]  ? kasan_complete_mode_report_info+0x64/0x200
[   29.699873]  kasan_report+0x102/0x140
[   29.700749]  ? kmem_cache_double_destroy+0x1bd/0x380
[   29.701528]  ? kmem_cache_double_destroy+0x1bd/0x380
[   29.702481]  ? kmem_cache_double_destroy+0x1bd/0x380
[   29.702971]  __kasan_check_byte+0x3d/0x50
[   29.703531]  kmem_cache_destroy+0x25/0x1d0
[   29.704456]  kmem_cache_double_destroy+0x1bd/0x380
[   29.705279]  ? __pfx_kmem_cache_double_destroy+0x10/0x10
[   29.705671]  ? finish_task_switch.isra.0+0x153/0x700
[   29.706625]  ? __switch_to+0x5d9/0xf60
[   29.707439]  ? __pfx_empty_cache_ctor+0x10/0x10
[   29.708149]  ? __pfx_read_tsc+0x10/0x10
[   29.708537]  ? ktime_get_ts64+0x84/0x230
[   29.709032]  kunit_try_run_case+0x1b3/0x490
[   29.709434]  ? __pfx_kunit_try_run_case+0x10/0x10
[   29.709875]  ? _raw_spin_lock_irqsave+0xa2/0x110
[   29.710273]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   29.711309]  ? __kthread_parkme+0x82/0x160
[   29.711984]  ? preempt_count_sub+0x50/0x80
[   29.713093]  ? __pfx_kunit_try_run_case+0x10/0x10
[   29.713416]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   29.714373]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   29.715104]  kthread+0x257/0x310
[   29.715656]  ? __pfx_kthread+0x10/0x10
[   29.716011]  ret_from_fork+0x41/0x80
[   29.716638]  ? __pfx_kthread+0x10/0x10
[   29.717350]  ret_from_fork_asm+0x1a/0x30
[   29.717932]  </TASK>
[   29.718253] 
[   29.718454] Allocated by task 222:
[   29.719665]  kasan_save_stack+0x3d/0x60
[   29.719954]  kasan_save_track+0x18/0x40
[   29.720638]  kasan_save_alloc_info+0x3b/0x50
[   29.721474]  __kasan_slab_alloc+0x91/0xa0
[   29.721834]  kmem_cache_alloc_noprof+0x11e/0x3f0
[   29.722964]  __kmem_cache_create_args+0x177/0x250
[   29.724105]  kmem_cache_double_destroy+0xd3/0x380
[   29.724596]  kunit_try_run_case+0x1b3/0x490
[   29.726047]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   29.726570]  kthread+0x257/0x310
[   29.727145]  ret_from_fork+0x41/0x80
[   29.728019]  ret_from_fork_asm+0x1a/0x30
[   29.728405] 
[   29.728634] Freed by task 222:
[   29.729012]  kasan_save_stack+0x3d/0x60
[   29.729368]  kasan_save_track+0x18/0x40
[   29.730452]  kasan_save_free_info+0x3f/0x60
[   29.730742]  __kasan_slab_free+0x56/0x70
[   29.731852]  kmem_cache_free+0x120/0x420
[   29.732112]  slab_kmem_cache_release+0x2e/0x40
[   29.733376]  kmem_cache_release+0x16/0x20
[   29.733773]  kobject_put+0x181/0x450
[   29.734604]  sysfs_slab_release+0x16/0x20
[   29.735038]  kmem_cache_destroy+0xf0/0x1d0
[   29.735930]  kmem_cache_double_destroy+0x14c/0x380
[   29.737138]  kunit_try_run_case+0x1b3/0x490
[   29.738138]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   29.738487]  kthread+0x257/0x310
[   29.739058]  ret_from_fork+0x41/0x80
[   29.739834]  ret_from_fork_asm+0x1a/0x30
[   29.740180] 
[   29.740565] The buggy address belongs to the object at ffff888101627dc0
[   29.740565]  which belongs to the cache kmem_cache of size 208
[   29.741571] The buggy address is located 0 bytes inside of
[   29.741571]  freed 208-byte region [ffff888101627dc0, ffff888101627e90)
[   29.743267] 
[   29.743576] The buggy address belongs to the physical page:
[   29.744124] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101627
[   29.745441] flags: 0x200000000000000(node=0|zone=2)
[   29.745832] page_type: f5(slab)
[   29.746285] raw: 0200000000000000 ffff888100041000 dead000000000122 0000000000000000
[   29.747588] raw: 0000000000000000 00000000800c000c 00000001f5000000 0000000000000000
[   29.748451] page dumped because: kasan: bad access detected
[   29.748768] 
[   29.748902] Memory state around the buggy address:
[   29.749176]  ffff888101627c80: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   29.749549]  ffff888101627d00: fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc
[   29.749949] >ffff888101627d80: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb
[   29.750337]                                            ^
[   29.751070]  ffff888101627e00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   29.751466]  ffff888101627e80: fb fb fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   29.752055] ==================================================================