[   19.864318] ==================================================================
[   19.873477] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_left+0x2ec/0x320
[   19.880329] Read of size 1 at addr ffff000800e2001f by task kunit_try_catch/183
[   19.887620] 
[   19.889106] CPU: 7 UID: 0 PID: 183 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-rc6-next-20250515 #1 PREEMPT 
[   19.889162] Tainted: [B]=BAD_PAGE, [N]=TEST
[   19.889178] Hardware name: WinLink E850-96 board (DT)
[   19.889202] Call trace:
[   19.889215]  show_stack+0x20/0x38 (C)
[   19.889253]  dump_stack_lvl+0x8c/0xd0
[   19.889285]  print_report+0x118/0x608
[   19.889317]  kasan_report+0xdc/0x128
[   19.889349]  __asan_report_load1_noabort+0x20/0x30
[   19.889385]  kmalloc_oob_left+0x2ec/0x320
[   19.889411]  kunit_try_run_case+0x170/0x3f0
[   19.889443]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   19.889479]  kthread+0x328/0x630
[   19.889513]  ret_from_fork+0x10/0x20
[   19.889548] 
[   19.952984] Allocated by task 54:
[   19.956284]  kasan_save_stack+0x3c/0x68
[   19.960099]  kasan_save_track+0x20/0x40
[   19.963919]  kasan_save_alloc_info+0x40/0x58
[   19.968174]  __kasan_kmalloc+0xd4/0xd8
[   19.971905]  __kmalloc_node_track_caller_noprof+0x18c/0x4c0
[   19.977461]  kvasprintf+0xe0/0x180
[   19.980846]  __kthread_create_on_node+0x16c/0x350
[   19.985534]  kthread_create_on_node+0xe4/0x130
[   19.989962]  create_worker+0x380/0x6b8
[   19.993693]  worker_thread+0x5dc/0xf28
[   19.997426]  kthread+0x328/0x630
[   20.000637]  ret_from_fork+0x10/0x20
[   20.004196] 
[   20.005674] The buggy address belongs to the object at ffff000800e20000
[   20.005674]  which belongs to the cache kmalloc-16 of size 16
[   20.018001] The buggy address is located 19 bytes to the right of
[   20.018001]  allocated 12-byte region [ffff000800e20000, ffff000800e2000c)
[   20.030932] 
[   20.032412] The buggy address belongs to the physical page:
[   20.037967] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x880e20
[   20.045953] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   20.052462] page_type: f5(slab)
[   20.055599] raw: 0bfffe0000000000 ffff000800002640 dead000000000122 0000000000000000
[   20.063317] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000
[   20.071036] page dumped because: kasan: bad access detected
[   20.076591] 
[   20.078067] Memory state around the buggy address:
[   20.082849]  ffff000800e1ff00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   20.090050]  ffff000800e1ff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   20.097256] >ffff000800e20000: 00 04 fc fc 00 07 fc fc fc fc fc fc fc fc fc fc
[   20.104455]                             ^
[   20.108452]  ffff000800e20080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   20.115657]  ffff000800e20100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   20.122859] ==================================================================