[   19.814114] ==================================================================
[   19.814477] BUG: KASAN: slab-out-of-bounds in _copy_to_user+0x3c/0x70
[   19.814669] Read of size 121 at addr ffff888103341c00 by task kunit_try_catch/302
[   19.814989] 
[   19.815190] CPU: 1 UID: 0 PID: 302 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-next-20250603 #1 PREEMPT(voluntary) 
[   19.815255] Tainted: [B]=BAD_PAGE, [N]=TEST
[   19.815271] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   19.815298] Call Trace:
[   19.815325]  <TASK>
[   19.815362]  dump_stack_lvl+0x73/0xb0
[   19.815416]  print_report+0xd1/0x650
[   19.815445]  ? __virt_addr_valid+0x1db/0x2d0
[   19.815490]  ? _copy_to_user+0x3c/0x70
[   19.815515]  ? kasan_complete_mode_report_info+0x2a/0x200
[   19.815541]  ? _copy_to_user+0x3c/0x70
[   19.815579]  kasan_report+0x141/0x180
[   19.815605]  ? _copy_to_user+0x3c/0x70
[   19.815647]  kasan_check_range+0x10c/0x1c0
[   19.815675]  __kasan_check_read+0x15/0x20
[   19.815707]  _copy_to_user+0x3c/0x70
[   19.815736]  copy_user_test_oob+0x364/0x10f0
[   19.815766]  ? __pfx_copy_user_test_oob+0x10/0x10
[   19.815805]  ? finish_task_switch.isra.0+0x153/0x700
[   19.815833]  ? __switch_to+0x47/0xf50
[   19.815862]  ? __schedule+0x10cc/0x2b60
[   19.815889]  ? __pfx_read_tsc+0x10/0x10
[   19.815913]  ? ktime_get_ts64+0x86/0x230
[   19.815942]  kunit_try_run_case+0x1a5/0x480
[   19.815967]  ? __pfx_kunit_try_run_case+0x10/0x10
[   19.815990]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   19.816018]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   19.816045]  ? __kthread_parkme+0x82/0x180
[   19.816069]  ? preempt_count_sub+0x50/0x80
[   19.816095]  ? __pfx_kunit_try_run_case+0x10/0x10
[   19.816121]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   19.816147]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   19.816189]  kthread+0x337/0x6f0
[   19.816212]  ? trace_preempt_on+0x20/0xc0
[   19.816252]  ? __pfx_kthread+0x10/0x10
[   19.816277]  ? _raw_spin_unlock_irq+0x47/0x80
[   19.816333]  ? calculate_sigpending+0x7b/0xa0
[   19.816362]  ? __pfx_kthread+0x10/0x10
[   19.816388]  ret_from_fork+0x116/0x1d0
[   19.816410]  ? __pfx_kthread+0x10/0x10
[   19.816435]  ret_from_fork_asm+0x1a/0x30
[   19.816487]  </TASK>
[   19.816503] 
[   19.823412] Allocated by task 302:
[   19.823729]  kasan_save_stack+0x45/0x70
[   19.824040]  kasan_save_track+0x18/0x40
[   19.824379]  kasan_save_alloc_info+0x3b/0x50
[   19.824511]  __kasan_kmalloc+0xb7/0xc0
[   19.824620]  __kmalloc_noprof+0x1c9/0x500
[   19.824729]  kunit_kmalloc_array+0x25/0x60
[   19.824929]  copy_user_test_oob+0xab/0x10f0
[   19.825265]  kunit_try_run_case+0x1a5/0x480
[   19.825613]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   19.826030]  kthread+0x337/0x6f0
[   19.826277]  ret_from_fork+0x116/0x1d0
[   19.826489]  ret_from_fork_asm+0x1a/0x30
[   19.826718] 
[   19.826886] The buggy address belongs to the object at ffff888103341c00
[   19.826886]  which belongs to the cache kmalloc-128 of size 128
[   19.827686] The buggy address is located 0 bytes inside of
[   19.827686]  allocated 120-byte region [ffff888103341c00, ffff888103341c78)
[   19.827943] 
[   19.828012] The buggy address belongs to the physical page:
[   19.828219] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103341
[   19.828808] flags: 0x200000000000000(node=0|zone=2)
[   19.829371] page_type: f5(slab)
[   19.829650] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000
[   19.829956] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   19.830311] page dumped because: kasan: bad access detected
[   19.830444] 
[   19.830521] Memory state around the buggy address:
[   19.830645]  ffff888103341b00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   19.831060]  ffff888103341b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   19.831822] >ffff888103341c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   19.832178]                                                                 ^
[   19.832586]  ffff888103341c80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   19.832907]  ffff888103341d00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   19.833259] ==================================================================