[   25.628490] ==================================================================
[   25.629105] BUG: KASAN: slab-out-of-bounds in _copy_to_user+0x3c/0x70
[   25.629949] Read of size 121 at addr ffff8881022e0700 by task kunit_try_catch/302
[   25.631172] 
[   25.631605] CPU: 1 UID: 0 PID: 302 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-next-20250530 #1 PREEMPT(voluntary) 
[   25.631912] Tainted: [B]=BAD_PAGE, [N]=TEST
[   25.631937] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   25.631971] Call Trace:
[   25.631996]  <TASK>
[   25.632019]  dump_stack_lvl+0x73/0xb0
[   25.632060]  print_report+0xd1/0x650
[   25.632097]  ? __virt_addr_valid+0x1db/0x2d0
[   25.632132]  ? _copy_to_user+0x3c/0x70
[   25.632163]  ? kasan_complete_mode_report_info+0x2a/0x200
[   25.632198]  ? _copy_to_user+0x3c/0x70
[   25.632228]  kasan_report+0x141/0x180
[   25.632262]  ? _copy_to_user+0x3c/0x70
[   25.632298]  kasan_check_range+0x10c/0x1c0
[   25.632334]  __kasan_check_read+0x15/0x20
[   25.632362]  _copy_to_user+0x3c/0x70
[   25.632393]  copy_user_test_oob+0x364/0x10f0
[   25.632426]  ? __pfx_copy_user_test_oob+0x10/0x10
[   25.632454]  ? finish_task_switch.isra.0+0x153/0x700
[   25.632488]  ? __switch_to+0x47/0xf50
[   25.632526]  ? __schedule+0x10cc/0x2b60
[   25.632604]  ? __pfx_read_tsc+0x10/0x10
[   25.632642]  ? ktime_get_ts64+0x86/0x230
[   25.632681]  kunit_try_run_case+0x1a5/0x480
[   25.632712]  ? __pfx_kunit_try_run_case+0x10/0x10
[   25.632741]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   25.632779]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   25.632816]  ? __kthread_parkme+0x82/0x180
[   25.632874]  ? preempt_count_sub+0x50/0x80
[   25.632910]  ? __pfx_kunit_try_run_case+0x10/0x10
[   25.632942]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   25.632980]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   25.633017]  kthread+0x337/0x6f0
[   25.633046]  ? trace_preempt_on+0x20/0xc0
[   25.633082]  ? __pfx_kthread+0x10/0x10
[   25.633114]  ? _raw_spin_unlock_irq+0x47/0x80
[   25.633148]  ? calculate_sigpending+0x7b/0xa0
[   25.633185]  ? __pfx_kthread+0x10/0x10
[   25.633216]  ret_from_fork+0x116/0x1d0
[   25.633243]  ? __pfx_kthread+0x10/0x10
[   25.633272]  ret_from_fork_asm+0x1a/0x30
[   25.633316]  </TASK>
[   25.633333] 
[   25.650465] Allocated by task 302:
[   25.650807]  kasan_save_stack+0x45/0x70
[   25.651318]  kasan_save_track+0x18/0x40
[   25.651810]  kasan_save_alloc_info+0x3b/0x50
[   25.652310]  __kasan_kmalloc+0xb7/0xc0
[   25.652810]  __kmalloc_noprof+0x1c9/0x500
[   25.653187]  kunit_kmalloc_array+0x25/0x60
[   25.653724]  copy_user_test_oob+0xab/0x10f0
[   25.654194]  kunit_try_run_case+0x1a5/0x480
[   25.654587]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   25.655158]  kthread+0x337/0x6f0
[   25.655632]  ret_from_fork+0x116/0x1d0
[   25.656083]  ret_from_fork_asm+0x1a/0x30
[   25.656515] 
[   25.656815] The buggy address belongs to the object at ffff8881022e0700
[   25.656815]  which belongs to the cache kmalloc-128 of size 128
[   25.657807] The buggy address is located 0 bytes inside of
[   25.657807]  allocated 120-byte region [ffff8881022e0700, ffff8881022e0778)
[   25.658920] 
[   25.659187] The buggy address belongs to the physical page:
[   25.659720] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1022e0
[   25.660458] flags: 0x200000000000000(node=0|zone=2)
[   25.661004] page_type: f5(slab)
[   25.661371] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000
[   25.662109] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   25.662870] page dumped because: kasan: bad access detected
[   25.663373] 
[   25.663683] Memory state around the buggy address:
[   25.664141]  ffff8881022e0600: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   25.664668]  ffff8881022e0680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   25.665395] >ffff8881022e0700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   25.666114]                                                                 ^
[   25.666755]  ffff8881022e0780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   25.667287]  ffff8881022e0800: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   25.668027] ==================================================================