[   21.433627] ==================================================================
[   21.443329] BUG: KASAN: use-after-free in kmalloc_large_uaf+0x2cc/0x2f8
[   21.449923] Read of size 1 at addr ffff000803500000 by task kunit_try_catch/193
[   21.457214] 
[   21.458701] CPU: 7 UID: 0 PID: 193 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-rc6-next-20250515 #1 PREEMPT 
[   21.458755] Tainted: [B]=BAD_PAGE, [N]=TEST
[   21.458772] Hardware name: WinLink E850-96 board (DT)
[   21.458793] Call trace:
[   21.458806]  show_stack+0x20/0x38 (C)
[   21.458844]  dump_stack_lvl+0x8c/0xd0
[   21.458876]  print_report+0x118/0x608
[   21.458909]  kasan_report+0xdc/0x128
[   21.458943]  __asan_report_load1_noabort+0x20/0x30
[   21.458981]  kmalloc_large_uaf+0x2cc/0x2f8
[   21.459007]  kunit_try_run_case+0x170/0x3f0
[   21.459039]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   21.459073]  kthread+0x328/0x630
[   21.459107]  ret_from_fork+0x10/0x20
[   21.459143] 
[   21.522667] The buggy address belongs to the physical page:
[   21.528222] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x883500
[   21.536209] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   21.542730] raw: 0bfffe0000000000 ffff00085b012f00 ffff00085b012f00 0000000000000000
[   21.550447] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[   21.558168] page dumped because: kasan: bad access detected
[   21.563722] 
[   21.565197] Memory state around the buggy address:
[   21.569981]  ffff0008034fff00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   21.577180]  ffff0008034fff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   21.584387] >ffff000803500000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   21.591586]                    ^
[   21.594801]  ffff000803500080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   21.602006]  ffff000803500100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   21.609209] ==================================================================