[   24.146167] ==================================================================
[   24.147600] BUG: KASAN: slab-use-after-free in kmem_cache_double_destroy+0x1bf/0x380
[   24.148164] Read of size 1 at addr ffff888101a65b40 by task kunit_try_catch/264
[   24.148461] 
[   24.148581] CPU: 0 UID: 0 PID: 264 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc6-next-20250716 #1 PREEMPT(voluntary) 
[   24.148638] Tainted: [B]=BAD_PAGE, [N]=TEST
[   24.148651] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   24.148674] Call Trace:
[   24.148688]  <TASK>
[   24.148709]  dump_stack_lvl+0x73/0xb0
[   24.148743]  print_report+0xd1/0x610
[   24.148766]  ? __virt_addr_valid+0x1db/0x2d0
[   24.148793]  ? kmem_cache_double_destroy+0x1bf/0x380
[   24.148816]  ? kasan_complete_mode_report_info+0x64/0x200
[   24.148843]  ? kmem_cache_double_destroy+0x1bf/0x380
[   24.148945]  kasan_report+0x141/0x180
[   24.148971]  ? kmem_cache_double_destroy+0x1bf/0x380
[   24.149013]  ? kmem_cache_double_destroy+0x1bf/0x380
[   24.149038]  __kasan_check_byte+0x3d/0x50
[   24.149060]  kmem_cache_destroy+0x25/0x1d0
[   24.149099]  kmem_cache_double_destroy+0x1bf/0x380
[   24.149123]  ? __pfx_kmem_cache_double_destroy+0x10/0x10
[   24.149146]  ? finish_task_switch.isra.0+0x153/0x700
[   24.149181]  ? __switch_to+0x47/0xf80
[   24.149212]  ? __pfx_read_tsc+0x10/0x10
[   24.149234]  ? ktime_get_ts64+0x86/0x230
[   24.149265]  kunit_try_run_case+0x1a5/0x480
[   24.149299]  ? __pfx_kunit_try_run_case+0x10/0x10
[   24.149321]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   24.149347]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   24.149370]  ? __kthread_parkme+0x82/0x180
[   24.149390]  ? preempt_count_sub+0x50/0x80
[   24.149412]  ? __pfx_kunit_try_run_case+0x10/0x10
[   24.149436]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   24.149462]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   24.149488]  kthread+0x337/0x6f0
[   24.149508]  ? trace_preempt_on+0x20/0xc0
[   24.149531]  ? __pfx_kthread+0x10/0x10
[   24.149552]  ? _raw_spin_unlock_irq+0x47/0x80
[   24.149596]  ? calculate_sigpending+0x7b/0xa0
[   24.149621]  ? __pfx_kthread+0x10/0x10
[   24.149642]  ret_from_fork+0x116/0x1d0
[   24.149662]  ? __pfx_kthread+0x10/0x10
[   24.149682]  ret_from_fork_asm+0x1a/0x30
[   24.149713]  </TASK>
[   24.149725] 
[   24.162366] Allocated by task 264:
[   24.162506]  kasan_save_stack+0x45/0x70
[   24.162906]  kasan_save_track+0x18/0x40
[   24.163377]  kasan_save_alloc_info+0x3b/0x50
[   24.164437]  __kasan_slab_alloc+0x91/0xa0
[   24.165140]  kmem_cache_alloc_noprof+0x123/0x3f0
[   24.165416]  __kmem_cache_create_args+0x169/0x240
[   24.165760]  kmem_cache_double_destroy+0xd5/0x380
[   24.165913]  kunit_try_run_case+0x1a5/0x480
[   24.166053]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   24.166958]  kthread+0x337/0x6f0
[   24.167369]  ret_from_fork+0x116/0x1d0
[   24.167730]  ret_from_fork_asm+0x1a/0x30
[   24.168174] 
[   24.168269] Freed by task 264:
[   24.168397]  kasan_save_stack+0x45/0x70
[   24.168586]  kasan_save_track+0x18/0x40
[   24.168750]  kasan_save_free_info+0x3f/0x60
[   24.168949]  __kasan_slab_free+0x56/0x70
[   24.169202]  kmem_cache_free+0x249/0x420
[   24.169380]  slab_kmem_cache_release+0x2e/0x40
[   24.169600]  kmem_cache_release+0x16/0x20
[   24.169779]  kobject_put+0x181/0x450
[   24.169904]  sysfs_slab_release+0x16/0x20
[   24.170164]  kmem_cache_destroy+0xf0/0x1d0
[   24.170385]  kmem_cache_double_destroy+0x14e/0x380
[   24.170556]  kunit_try_run_case+0x1a5/0x480
[   24.170767]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   24.171088]  kthread+0x337/0x6f0
[   24.171232]  ret_from_fork+0x116/0x1d0
[   24.171384]  ret_from_fork_asm+0x1a/0x30
[   24.171515] 
[   24.171581] The buggy address belongs to the object at ffff888101a65b40
[   24.171581]  which belongs to the cache kmem_cache of size 208
[   24.172230] The buggy address is located 0 bytes inside of
[   24.172230]  freed 208-byte region [ffff888101a65b40, ffff888101a65c10)
[   24.172911] 
[   24.173010] The buggy address belongs to the physical page:
[   24.173223] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101a65
[   24.173655] flags: 0x200000000000000(node=0|zone=2)
[   24.173848] page_type: f5(slab)
[   24.174023] raw: 0200000000000000 ffff888100041000 dead000000000122 0000000000000000
[   24.174404] raw: 0000000000000000 00000000800c000c 00000000f5000000 0000000000000000
[   24.174708] page dumped because: kasan: bad access detected
[   24.174874] 
[   24.174937] Memory state around the buggy address:
[   24.175160]  ffff888101a65a00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   24.175554]  ffff888101a65a80: fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc
[   24.175940] >ffff888101a65b00: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb
[   24.176159]                                            ^
[   24.176553]  ffff888101a65b80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   24.176863]  ffff888101a65c00: fb fb fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   24.177159] ==================================================================