[   25.714546] ==================================================================
[   25.715132] BUG: KASAN: slab-use-after-free in kmem_cache_double_destroy+0x1bf/0x380
[   25.715572] Read of size 1 at addr ffff888100a0b640 by task kunit_try_catch/263
[   25.715903] 
[   25.715999] CPU: 0 UID: 0 PID: 263 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc6-next-20250718 #1 PREEMPT(voluntary) 
[   25.716051] Tainted: [B]=BAD_PAGE, [N]=TEST
[   25.716063] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   25.716086] Call Trace:
[   25.716100]  <TASK>
[   25.716118]  dump_stack_lvl+0x73/0xb0
[   25.716151]  print_report+0xd1/0x640
[   25.716173]  ? __virt_addr_valid+0x1db/0x2d0
[   25.716199]  ? kmem_cache_double_destroy+0x1bf/0x380
[   25.716222]  ? kasan_complete_mode_report_info+0x64/0x200
[   25.716258]  ? kmem_cache_double_destroy+0x1bf/0x380
[   25.716282]  kasan_report+0x141/0x180
[   25.716305]  ? kmem_cache_double_destroy+0x1bf/0x380
[   25.716332]  ? kmem_cache_double_destroy+0x1bf/0x380
[   25.716355]  __kasan_check_byte+0x3d/0x50
[   25.716376]  kmem_cache_destroy+0x25/0x1d0
[   25.716403]  kmem_cache_double_destroy+0x1bf/0x380
[   25.716427]  ? __pfx_kmem_cache_double_destroy+0x10/0x10
[   25.716450]  ? finish_task_switch.isra.0+0x153/0x700
[   25.716473]  ? __switch_to+0x47/0xf80
[   25.716503]  ? __pfx_read_tsc+0x10/0x10
[   25.716525]  ? ktime_get_ts64+0x86/0x230
[   25.716549]  kunit_try_run_case+0x1a5/0x480
[   25.716575]  ? __pfx_kunit_try_run_case+0x10/0x10
[   25.716596]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   25.716631]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   25.716663]  ? __kthread_parkme+0x82/0x180
[   25.716683]  ? preempt_count_sub+0x50/0x80
[   25.716706]  ? __pfx_kunit_try_run_case+0x10/0x10
[   25.716728]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   25.716751]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   25.716773]  kthread+0x337/0x6f0
[   25.716793]  ? trace_preempt_on+0x20/0xc0
[   25.716818]  ? __pfx_kthread+0x10/0x10
[   25.716837]  ? _raw_spin_unlock_irq+0x47/0x80
[   25.716867]  ? calculate_sigpending+0x7b/0xa0
[   25.716892]  ? __pfx_kthread+0x10/0x10
[   25.716914]  ret_from_fork+0x116/0x1d0
[   25.716933]  ? __pfx_kthread+0x10/0x10
[   25.716953]  ret_from_fork_asm+0x1a/0x30
[   25.716984]  </TASK>
[   25.716995] 
[   25.725940] Allocated by task 263:
[   25.726101]  kasan_save_stack+0x45/0x70
[   25.727020]  kasan_save_track+0x18/0x40
[   25.727190]  kasan_save_alloc_info+0x3b/0x50
[   25.727594]  __kasan_slab_alloc+0x91/0xa0
[   25.727788]  kmem_cache_alloc_noprof+0x123/0x3f0
[   25.728271]  __kmem_cache_create_args+0x169/0x240
[   25.728458]  kmem_cache_double_destroy+0xd5/0x380
[   25.728815]  kunit_try_run_case+0x1a5/0x480
[   25.729169]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   25.729422]  kthread+0x337/0x6f0
[   25.729579]  ret_from_fork+0x116/0x1d0
[   25.729749]  ret_from_fork_asm+0x1a/0x30
[   25.729929] 
[   25.729999] Freed by task 263:
[   25.730152]  kasan_save_stack+0x45/0x70
[   25.730773]  kasan_save_track+0x18/0x40
[   25.731171]  kasan_save_free_info+0x3f/0x60
[   25.731365]  __kasan_slab_free+0x56/0x70
[   25.731707]  kmem_cache_free+0x249/0x420
[   25.732063]  slab_kmem_cache_release+0x2e/0x40
[   25.732388]  kmem_cache_release+0x16/0x20
[   25.732548]  kobject_put+0x181/0x450
[   25.732883]  sysfs_slab_release+0x16/0x20
[   25.733281]  kmem_cache_destroy+0xf0/0x1d0
[   25.733480]  kmem_cache_double_destroy+0x14e/0x380
[   25.733789]  kunit_try_run_case+0x1a5/0x480
[   25.734068]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   25.734384]  kthread+0x337/0x6f0
[   25.734714]  ret_from_fork+0x116/0x1d0
[   25.734909]  ret_from_fork_asm+0x1a/0x30
[   25.735086] 
[   25.735161] The buggy address belongs to the object at ffff888100a0b640
[   25.735161]  which belongs to the cache kmem_cache of size 208
[   25.735668] The buggy address is located 0 bytes inside of
[   25.735668]  freed 208-byte region [ffff888100a0b640, ffff888100a0b710)
[   25.736150] 
[   25.736224] The buggy address belongs to the physical page:
[   25.737130] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x100a0b
[   25.737579] flags: 0x200000000000000(node=0|zone=2)
[   25.737953] page_type: f5(slab)
[   25.738145] raw: 0200000000000000 ffff888100041000 dead000000000122 0000000000000000
[   25.738679] raw: 0000000000000000 00000000800c000c 00000000f5000000 0000000000000000
[   25.739210] page dumped because: kasan: bad access detected
[   25.739554] 
[   25.739652] Memory state around the buggy address:
[   25.739856]  ffff888100a0b500: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   25.740344]  ffff888100a0b580: fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc
[   25.740646] >ffff888100a0b600: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb
[   25.740936]                                            ^
[   25.741155]  ffff888100a0b680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   25.741745]  ffff888100a0b700: fb fb fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   25.742202] ==================================================================