[   25.853119] ==================================================================
[   25.853703] BUG: KASAN: slab-use-after-free in kmem_cache_double_destroy+0x1bf/0x380
[   25.854039] Read of size 1 at addr ffff8881010bda00 by task kunit_try_catch/264
[   25.854776] 
[   25.854882] CPU: 1 UID: 0 PID: 264 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc4-next-20250704 #1 PREEMPT(voluntary) 
[   25.854943] Tainted: [B]=BAD_PAGE, [N]=TEST
[   25.854957] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   25.854984] Call Trace:
[   25.855001]  <TASK>
[   25.855050]  dump_stack_lvl+0x73/0xb0
[   25.855088]  print_report+0xd1/0x650
[   25.855115]  ? __virt_addr_valid+0x1db/0x2d0
[   25.855345]  ? kmem_cache_double_destroy+0x1bf/0x380
[   25.855374]  ? kasan_complete_mode_report_info+0x64/0x200
[   25.855418]  ? kmem_cache_double_destroy+0x1bf/0x380
[   25.855472]  kasan_report+0x141/0x180
[   25.855498]  ? kmem_cache_double_destroy+0x1bf/0x380
[   25.855528]  ? kmem_cache_double_destroy+0x1bf/0x380
[   25.855554]  __kasan_check_byte+0x3d/0x50
[   25.855577]  kmem_cache_destroy+0x25/0x1d0
[   25.855608]  kmem_cache_double_destroy+0x1bf/0x380
[   25.855656]  ? __pfx_kmem_cache_double_destroy+0x10/0x10
[   25.855682]  ? finish_task_switch.isra.0+0x153/0x700
[   25.855707]  ? __switch_to+0x47/0xf50
[   25.855740]  ? __pfx_read_tsc+0x10/0x10
[   25.855766]  ? ktime_get_ts64+0x86/0x230
[   25.855794]  kunit_try_run_case+0x1a5/0x480
[   25.855826]  ? __pfx_kunit_try_run_case+0x10/0x10
[   25.855852]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   25.855895]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   25.855921]  ? __kthread_parkme+0x82/0x180
[   25.855944]  ? preempt_count_sub+0x50/0x80
[   25.855969]  ? __pfx_kunit_try_run_case+0x10/0x10
[   25.855997]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   25.856024]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   25.856052]  kthread+0x337/0x6f0
[   25.856074]  ? trace_preempt_on+0x20/0xc0
[   25.856100]  ? __pfx_kthread+0x10/0x10
[   25.856123]  ? _raw_spin_unlock_irq+0x47/0x80
[   25.856246]  ? calculate_sigpending+0x7b/0xa0
[   25.856282]  ? __pfx_kthread+0x10/0x10
[   25.856306]  ret_from_fork+0x116/0x1d0
[   25.856328]  ? __pfx_kthread+0x10/0x10
[   25.856351]  ret_from_fork_asm+0x1a/0x30
[   25.856386]  </TASK>
[   25.856414] 
[   25.868384] Allocated by task 264:
[   25.868827]  kasan_save_stack+0x45/0x70
[   25.869251]  kasan_save_track+0x18/0x40
[   25.869460]  kasan_save_alloc_info+0x3b/0x50
[   25.869689]  __kasan_slab_alloc+0x91/0xa0
[   25.869895]  kmem_cache_alloc_noprof+0x123/0x3f0
[   25.870493]  __kmem_cache_create_args+0x169/0x240
[   25.870826]  kmem_cache_double_destroy+0xd5/0x380
[   25.871375]  kunit_try_run_case+0x1a5/0x480
[   25.871739]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   25.872113]  kthread+0x337/0x6f0
[   25.872276]  ret_from_fork+0x116/0x1d0
[   25.872749]  ret_from_fork_asm+0x1a/0x30
[   25.873049] 
[   25.873134] Freed by task 264:
[   25.873517]  kasan_save_stack+0x45/0x70
[   25.873724]  kasan_save_track+0x18/0x40
[   25.874267]  kasan_save_free_info+0x3f/0x60
[   25.874486]  __kasan_slab_free+0x56/0x70
[   25.874868]  kmem_cache_free+0x249/0x420
[   25.875073]  slab_kmem_cache_release+0x2e/0x40
[   25.875670]  kmem_cache_release+0x16/0x20
[   25.875958]  kobject_put+0x181/0x450
[   25.876159]  sysfs_slab_release+0x16/0x20
[   25.876644]  kmem_cache_destroy+0xf0/0x1d0
[   25.877000]  kmem_cache_double_destroy+0x14e/0x380
[   25.877228]  kunit_try_run_case+0x1a5/0x480
[   25.877718]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   25.878184]  kthread+0x337/0x6f0
[   25.878376]  ret_from_fork+0x116/0x1d0
[   25.878576]  ret_from_fork_asm+0x1a/0x30
[   25.878769] 
[   25.878872] The buggy address belongs to the object at ffff8881010bda00
[   25.878872]  which belongs to the cache kmem_cache of size 208
[   25.879902] The buggy address is located 0 bytes inside of
[   25.879902]  freed 208-byte region [ffff8881010bda00, ffff8881010bdad0)
[   25.880297] 
[   25.880381] The buggy address belongs to the physical page:
[   25.880666] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1010bd
[   25.881049] flags: 0x200000000000000(node=0|zone=2)
[   25.882009] page_type: f5(slab)
[   25.882173] raw: 0200000000000000 ffff888100041000 dead000000000100 dead000000000122
[   25.883126] raw: 0000000000000000 00000000800c000c 00000000f5000000 0000000000000000
[   25.883928] page dumped because: kasan: bad access detected
[   25.884126] 
[   25.884569] Memory state around the buggy address:
[   25.885211]  ffff8881010bd900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   25.885944]  ffff8881010bd980: fb fb fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   25.886460] >ffff8881010bda00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   25.886691]                    ^
[   25.886812]  ffff8881010bda80: fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc
[   25.887419]  ffff8881010bdb00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   25.887957] ==================================================================