[   26.589469] ==================================================================
[   26.590017] BUG: KASAN: slab-use-after-free in kmem_cache_double_destroy+0x1bf/0x380
[   26.590328] Read of size 1 at addr ffff888101a68640 by task kunit_try_catch/244
[   26.590485] 
[   26.590722] CPU: 1 UID: 0 PID: 244 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc2-next-20250620 #1 PREEMPT(voluntary) 
[   26.590783] Tainted: [B]=BAD_PAGE, [N]=TEST
[   26.590796] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   26.590821] Call Trace:
[   26.590841]  <TASK>
[   26.590865]  dump_stack_lvl+0x73/0xb0
[   26.590899]  print_report+0xd1/0x650
[   26.590922]  ? __virt_addr_valid+0x1db/0x2d0
[   26.590949]  ? kmem_cache_double_destroy+0x1bf/0x380
[   26.590973]  ? kasan_complete_mode_report_info+0x64/0x200
[   26.590999]  ? kmem_cache_double_destroy+0x1bf/0x380
[   26.591024]  kasan_report+0x141/0x180
[   26.591047]  ? kmem_cache_double_destroy+0x1bf/0x380
[   26.591075]  ? kmem_cache_double_destroy+0x1bf/0x380
[   26.591100]  __kasan_check_byte+0x3d/0x50
[   26.591122]  kmem_cache_destroy+0x25/0x1d0
[   26.591147]  kmem_cache_double_destroy+0x1bf/0x380
[   26.591171]  ? __pfx_kmem_cache_double_destroy+0x10/0x10
[   26.591195]  ? finish_task_switch.isra.0+0x153/0x700
[   26.591219]  ? __switch_to+0x47/0xf50
[   26.591248]  ? sysvec_apic_timer_interrupt+0x50/0x90
[   26.591274]  ? __pfx_read_tsc+0x10/0x10
[   26.591329]  ? ktime_get_ts64+0x86/0x230
[   26.591359]  kunit_try_run_case+0x1a5/0x480
[   26.591386]  ? __pfx_kunit_try_run_case+0x10/0x10
[   26.591416]  ? __kthread_parkme+0x122/0x180
[   26.591450]  ? __pfx_kunit_try_run_case+0x10/0x10
[   26.591478]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   26.591503]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   26.591556]  kthread+0x337/0x6f0
[   26.591579]  ? trace_preempt_on+0x20/0xc0
[   26.591605]  ? __pfx_kthread+0x10/0x10
[   26.591626]  ? _raw_spin_unlock_irq+0x47/0x80
[   26.591649]  ? calculate_sigpending+0x7b/0xa0
[   26.591680]  ? __pfx_kthread+0x10/0x10
[   26.591702]  ret_from_fork+0x116/0x1d0
[   26.591722]  ? __pfx_kthread+0x10/0x10
[   26.591743]  ret_from_fork_asm+0x1a/0x30
[   26.591776]  </TASK>
[   26.591789] 
[   26.601072] Allocated by task 244:
[   26.601410]  kasan_save_stack+0x45/0x70
[   26.601940]  kasan_save_track+0x18/0x40
[   26.602244]  kasan_save_alloc_info+0x3b/0x50
[   26.602603]  __kasan_slab_alloc+0x91/0xa0
[   26.603037]  kmem_cache_alloc_noprof+0x123/0x3f0
[   26.603374]  __kmem_cache_create_args+0x169/0x240
[   26.603722]  kmem_cache_double_destroy+0xd5/0x380
[   26.604112]  kunit_try_run_case+0x1a5/0x480
[   26.604317]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   26.604648]  kthread+0x337/0x6f0
[   26.604918]  ret_from_fork+0x116/0x1d0
[   26.605237]  ret_from_fork_asm+0x1a/0x30
[   26.605477] 
[   26.605616] Freed by task 244:
[   26.605700]  kasan_save_stack+0x45/0x70
[   26.605792]  kasan_save_track+0x18/0x40
[   26.605966]  kasan_save_free_info+0x3f/0x60
[   26.606624]  __kasan_slab_free+0x56/0x70
[   26.606930]  kmem_cache_free+0x249/0x420
[   26.607060]  slab_kmem_cache_release+0x2e/0x40
[   26.607333]  kmem_cache_release+0x16/0x20
[   26.607588]  kobject_put+0x181/0x450
[   26.607718]  sysfs_slab_release+0x16/0x20
[   26.607820]  kmem_cache_destroy+0xf0/0x1d0
[   26.608045]  kmem_cache_double_destroy+0x14e/0x380
[   26.608404]  kunit_try_run_case+0x1a5/0x480
[   26.609033]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   26.609467]  kthread+0x337/0x6f0
[   26.609567]  ret_from_fork+0x116/0x1d0
[   26.609917]  ret_from_fork_asm+0x1a/0x30
[   26.610102] 
[   26.610168] The buggy address belongs to the object at ffff888101a68640
[   26.610168]  which belongs to the cache kmem_cache of size 208
[   26.610666] The buggy address is located 0 bytes inside of
[   26.610666]  freed 208-byte region [ffff888101a68640, ffff888101a68710)
[   26.611371] 
[   26.611449] The buggy address belongs to the physical page:
[   26.611800] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101a68
[   26.611995] flags: 0x200000000000000(node=0|zone=2)
[   26.612139] page_type: f5(slab)
[   26.612434] raw: 0200000000000000 ffff888100041000 dead000000000100 dead000000000122
[   26.612989] raw: 0000000000000000 00000000800c000c 00000000f5000000 0000000000000000
[   26.613406] page dumped because: kasan: bad access detected
[   26.613785] 
[   26.613921] Memory state around the buggy address:
[   26.614274]  ffff888101a68500: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   26.614435]  ffff888101a68580: fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc
[   26.614867] >ffff888101a68600: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb
[   26.615020]                                            ^
[   26.615496]  ffff888101a68680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   26.615671]  ffff888101a68700: fb fb fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   26.615816] ==================================================================