[   26.519208] ==================================================================
[   26.520270] BUG: KASAN: slab-use-after-free in kmem_cache_double_destroy+0x1bd/0x380
[   26.521151] Read of size 1 at addr ffff888101a54b40 by task kunit_try_catch/223
[   26.521850] 
[   26.522943] CPU: 1 UID: 0 PID: 223 Comm: kunit_try_catch Tainted: G    B            N 6.12.0-next-20241127 #1
[   26.524395] Tainted: [B]=BAD_PAGE, [N]=TEST
[   26.524807] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   26.526153] Call Trace:
[   26.526476]  <TASK>
[   26.526746]  dump_stack_lvl+0x73/0xb0
[   26.527145]  print_report+0xd1/0x640
[   26.527542]  ? __virt_addr_valid+0x1db/0x2d0
[   26.527956]  ? kasan_complete_mode_report_info+0x64/0x200
[   26.529309]  kasan_report+0x102/0x140
[   26.529709]  ? kmem_cache_double_destroy+0x1bd/0x380
[   26.530284]  ? kmem_cache_double_destroy+0x1bd/0x380
[   26.530806]  ? kmem_cache_double_destroy+0x1bd/0x380
[   26.531539]  __kasan_check_byte+0x3d/0x50
[   26.532222]  kmem_cache_destroy+0x25/0x1d0
[   26.533069]  kmem_cache_double_destroy+0x1bd/0x380
[   26.533568]  ? __pfx_kmem_cache_double_destroy+0x10/0x10
[   26.534462]  ? finish_task_switch.isra.0+0x153/0x700
[   26.535705]  ? __switch_to+0x5d9/0xf60
[   26.536240]  ? __pfx_empty_cache_ctor+0x10/0x10
[   26.536662]  ? __pfx_read_tsc+0x10/0x10
[   26.537859]  ? ktime_get_ts64+0x84/0x230
[   26.538462]  kunit_try_run_case+0x1b3/0x490
[   26.538887]  ? __pfx_kunit_try_run_case+0x10/0x10
[   26.539835]  ? _raw_spin_lock_irqsave+0xa2/0x110
[   26.540469]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   26.540965]  ? __kthread_parkme+0x82/0x160
[   26.541290]  ? preempt_count_sub+0x50/0x80
[   26.541897]  ? __pfx_kunit_try_run_case+0x10/0x10
[   26.542501]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   26.543333]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   26.543885]  kthread+0x257/0x310
[   26.544327]  ? __pfx_kthread+0x10/0x10
[   26.544610]  ret_from_fork+0x41/0x80
[   26.545243]  ? __pfx_kthread+0x10/0x10
[   26.546042]  ret_from_fork_asm+0x1a/0x30
[   26.547346]  </TASK>
[   26.547604] 
[   26.547796] Allocated by task 223:
[   26.548902]  kasan_save_stack+0x3d/0x60
[   26.549194]  kasan_save_track+0x18/0x40
[   26.549654]  kasan_save_alloc_info+0x3b/0x50
[   26.550392]  __kasan_slab_alloc+0x91/0xa0
[   26.551109]  kmem_cache_alloc_noprof+0x11e/0x3e0
[   26.551850]  __kmem_cache_create_args+0x177/0x250
[   26.552199]  kmem_cache_double_destroy+0xd3/0x380
[   26.552756]  kunit_try_run_case+0x1b3/0x490
[   26.553713]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   26.554524]  kthread+0x257/0x310
[   26.554878]  ret_from_fork+0x41/0x80
[   26.555687]  ret_from_fork_asm+0x1a/0x30
[   26.556278] 
[   26.556501] Freed by task 223:
[   26.556826]  kasan_save_stack+0x3d/0x60
[   26.558481]  kasan_save_track+0x18/0x40
[   26.558882]  kasan_save_free_info+0x3f/0x60
[   26.559826]  __kasan_slab_free+0x56/0x70
[   26.560550]  kmem_cache_free+0x120/0x420
[   26.560816]  slab_kmem_cache_release+0x2e/0x40
[   26.561352]  kmem_cache_release+0x16/0x20
[   26.562428]  kobject_put+0x181/0x450
[   26.562856]  sysfs_slab_release+0x16/0x20
[   26.563599]  kmem_cache_destroy+0xf0/0x1d0
[   26.563811]  kmem_cache_double_destroy+0x14c/0x380
[   26.564469]  kunit_try_run_case+0x1b3/0x490
[   26.565426]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   26.566235]  kthread+0x257/0x310
[   26.566486]  ret_from_fork+0x41/0x80
[   26.567450]  ret_from_fork_asm+0x1a/0x30
[   26.567844] 
[   26.568052] The buggy address belongs to the object at ffff888101a54b40
[   26.568052]  which belongs to the cache kmem_cache of size 208
[   26.569782] The buggy address is located 0 bytes inside of
[   26.569782]  freed 208-byte region [ffff888101a54b40, ffff888101a54c10)
[   26.571046] 
[   26.571524] The buggy address belongs to the physical page:
[   26.572165] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101a54
[   26.573478] flags: 0x200000000000000(node=0|zone=2)
[   26.574617] page_type: f5(slab)
[   26.574946] raw: 0200000000000000 ffff888100041000 dead000000000122 0000000000000000
[   26.575735] raw: 0000000000000000 00000000800c000c 00000001f5000000 0000000000000000
[   26.576646] page dumped because: kasan: bad access detected
[   26.577437] 
[   26.577685] Memory state around the buggy address:
[   26.578691]  ffff888101a54a00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   26.579353]  ffff888101a54a80: fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc
[   26.579946] >ffff888101a54b00: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb
[   26.581120]                                            ^
[   26.581772]  ffff888101a54b80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   26.582628]  ffff888101a54c00: fb fb fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   26.583609] ==================================================================