[   14.855520] ==================================================================
[   14.855894] BUG: KASAN: slab-out-of-bounds in _copy_to_user+0x3c/0x70
[   14.856294] Read of size 121 at addr ffff888102f96900 by task kunit_try_catch/302
[   14.856672] 
[   14.856819] CPU: 0 UID: 0 PID: 302 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-next-20250529 #1 PREEMPT(voluntary) 
[   14.856866] Tainted: [B]=BAD_PAGE, [N]=TEST
[   14.856879] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   14.856902] Call Trace:
[   14.856915]  <TASK>
[   14.856931]  dump_stack_lvl+0x73/0xb0
[   14.856958]  print_report+0xd1/0x650
[   14.856982]  ? __virt_addr_valid+0x1db/0x2d0
[   14.857006]  ? _copy_to_user+0x3c/0x70
[   14.857027]  ? kasan_complete_mode_report_info+0x2a/0x200
[   14.857051]  ? _copy_to_user+0x3c/0x70
[   14.857073]  kasan_report+0x141/0x180
[   14.857098]  ? _copy_to_user+0x3c/0x70
[   14.857125]  kasan_check_range+0x10c/0x1c0
[   14.857151]  __kasan_check_read+0x15/0x20
[   14.857172]  _copy_to_user+0x3c/0x70
[   14.857194]  copy_user_test_oob+0x364/0x10f0
[   14.857218]  ? __pfx_copy_user_test_oob+0x10/0x10
[   14.857239]  ? finish_task_switch.isra.0+0x153/0x700
[   14.857262]  ? __switch_to+0x47/0xf50
[   14.857289]  ? __schedule+0x10cc/0x2b60
[   14.857315]  ? __pfx_read_tsc+0x10/0x10
[   14.857337]  ? ktime_get_ts64+0x86/0x230
[   14.857364]  kunit_try_run_case+0x1a5/0x480
[   14.857388]  ? __pfx_kunit_try_run_case+0x10/0x10
[   14.857409]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   14.857434]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   14.857460]  ? __kthread_parkme+0x82/0x180
[   14.857482]  ? preempt_count_sub+0x50/0x80
[   14.857507]  ? __pfx_kunit_try_run_case+0x10/0x10
[   14.857529]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   14.857554]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   14.857581]  kthread+0x337/0x6f0
[   14.857604]  ? trace_preempt_on+0x20/0xc0
[   14.857640]  ? __pfx_kthread+0x10/0x10
[   14.857661]  ? _raw_spin_unlock_irq+0x47/0x80
[   14.857685]  ? calculate_sigpending+0x7b/0xa0
[   14.857709]  ? __pfx_kthread+0x10/0x10
[   14.857732]  ret_from_fork+0x116/0x1d0
[   14.857751]  ? __pfx_kthread+0x10/0x10
[   14.857795]  ret_from_fork_asm+0x1a/0x30
[   14.857827]  </TASK>
[   14.857838] 
[   14.867262] Allocated by task 302:
[   14.867416]  kasan_save_stack+0x45/0x70
[   14.867648]  kasan_save_track+0x18/0x40
[   14.868049]  kasan_save_alloc_info+0x3b/0x50
[   14.868323]  __kasan_kmalloc+0xb7/0xc0
[   14.868578]  __kmalloc_noprof+0x1c9/0x500
[   14.868761]  kunit_kmalloc_array+0x25/0x60
[   14.869140]  copy_user_test_oob+0xab/0x10f0
[   14.869399]  kunit_try_run_case+0x1a5/0x480
[   14.869671]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   14.870031]  kthread+0x337/0x6f0
[   14.870181]  ret_from_fork+0x116/0x1d0
[   14.870372]  ret_from_fork_asm+0x1a/0x30
[   14.870562] 
[   14.870653] The buggy address belongs to the object at ffff888102f96900
[   14.870653]  which belongs to the cache kmalloc-128 of size 128
[   14.871475] The buggy address is located 0 bytes inside of
[   14.871475]  allocated 120-byte region [ffff888102f96900, ffff888102f96978)
[   14.872109] 
[   14.872222] The buggy address belongs to the physical page:
[   14.872641] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102f96
[   14.873095] flags: 0x200000000000000(node=0|zone=2)
[   14.873398] page_type: f5(slab)
[   14.873622] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000
[   14.874047] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   14.874411] page dumped because: kasan: bad access detected
[   14.874722] 
[   14.874820] Memory state around the buggy address:
[   14.875027]  ffff888102f96800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   14.875348]  ffff888102f96880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   14.875676] >ffff888102f96900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   14.876218]                                                                 ^
[   14.876497]  ffff888102f96980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   14.876983]  ffff888102f96a00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   14.877374] ==================================================================