[   34.050991] ==================================================================
[   34.051980] BUG: KASAN: invalid-free in kmem_cache_invalid_free+0x184/0x3c8
[   34.058923] Free of addr ffff00080241c001 by task kunit_try_catch/256
[   34.065346] 
[   34.066833] CPU: 0 UID: 0 PID: 256 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-rc6-next-20250515 #1 PREEMPT 
[   34.066893] Tainted: [B]=BAD_PAGE, [N]=TEST
[   34.066911] Hardware name: WinLink E850-96 board (DT)
[   34.066934] Call trace:
[   34.066948]  show_stack+0x20/0x38 (C)
[   34.066988]  dump_stack_lvl+0x8c/0xd0
[   34.067020]  print_report+0x118/0x608
[   34.067054]  kasan_report_invalid_free+0xc0/0xe8
[   34.067088]  check_slab_allocation+0xfc/0x108
[   34.067123]  __kasan_slab_pre_free+0x2c/0x48
[   34.067154]  kmem_cache_free+0xf0/0x470
[   34.067185]  kmem_cache_invalid_free+0x184/0x3c8
[   34.067215]  kunit_try_run_case+0x170/0x3f0
[   34.067249]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   34.067284]  kthread+0x328/0x630
[   34.067320]  ret_from_fork+0x10/0x20
[   34.067354] 
[   34.139999] Allocated by task 256:
[   34.143386]  kasan_save_stack+0x3c/0x68
[   34.147203]  kasan_save_track+0x20/0x40
[   34.151022]  kasan_save_alloc_info+0x40/0x58
[   34.155274]  __kasan_slab_alloc+0xa8/0xb0
[   34.159267]  kmem_cache_alloc_noprof+0x10c/0x3a0
[   34.163868]  kmem_cache_invalid_free+0x12c/0x3c8
[   34.168468]  kunit_try_run_case+0x170/0x3f0
[   34.172635]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   34.178104]  kthread+0x328/0x630
[   34.181315]  ret_from_fork+0x10/0x20
[   34.184874] 
[   34.186353] The buggy address belongs to the object at ffff00080241c000
[   34.186353]  which belongs to the cache test_cache of size 200
[   34.198765] The buggy address is located 1 bytes inside of
[   34.198765]  200-byte region [ffff00080241c000, ffff00080241c0c8)
[   34.210308] 
[   34.211787] The buggy address belongs to the physical page:
[   34.217343] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x88241c
[   34.225327] head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   34.232966] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff)
[   34.239910] page_type: f5(slab)
[   34.243048] raw: 0bfffe0000000040 ffff000802403180 dead000000000122 0000000000000000
[   34.250766] raw: 0000000000000000 00000000801f001f 00000000f5000000 0000000000000000
[   34.258492] head: 0bfffe0000000040 ffff000802403180 dead000000000122 0000000000000000
[   34.266303] head: 0000000000000000 00000000801f001f 00000000f5000000 0000000000000000
[   34.274116] head: 0bfffe0000000001 fffffdffe0090701 00000000ffffffff 00000000ffffffff
[   34.281928] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000002
[   34.289734] page dumped because: kasan: bad access detected
[   34.295289] 
[   34.296765] Memory state around the buggy address:
[   34.301549]  ffff00080241bf00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   34.308748]  ffff00080241bf80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   34.315954] >ffff00080241c000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   34.323154]                    ^
[   34.326369]  ffff00080241c080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc
[   34.333575]  ffff00080241c100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   34.340778] ==================================================================