[   27.634639] ==================================================================
[   27.635097] BUG: KASAN: slab-out-of-bounds in _copy_to_user+0x3c/0x70
[   27.635419] Read of size 121 at addr ffff8881062af800 by task kunit_try_catch/333
[   27.635721] 
[   27.635817] CPU: 1 UID: 0 PID: 333 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc5-next-20250708 #1 PREEMPT(voluntary) 
[   27.635878] Tainted: [B]=BAD_PAGE, [N]=TEST
[   27.635892] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   27.635918] Call Trace:
[   27.635935]  <TASK>
[   27.635956]  dump_stack_lvl+0x73/0xb0
[   27.635988]  print_report+0xd1/0x610
[   27.636014]  ? __virt_addr_valid+0x1db/0x2d0
[   27.636041]  ? _copy_to_user+0x3c/0x70
[   27.636065]  ? kasan_complete_mode_report_info+0x2a/0x200
[   27.636097]  ? _copy_to_user+0x3c/0x70
[   27.636121]  kasan_report+0x141/0x180
[   27.636145]  ? _copy_to_user+0x3c/0x70
[   27.636174]  kasan_check_range+0x10c/0x1c0
[   27.636200]  __kasan_check_read+0x15/0x20
[   27.636228]  _copy_to_user+0x3c/0x70
[   27.636265]  copy_user_test_oob+0x364/0x10f0
[   27.636298]  ? __pfx_copy_user_test_oob+0x10/0x10
[   27.636328]  ? finish_task_switch.isra.0+0x153/0x700
[   27.636354]  ? __switch_to+0x47/0xf50
[   27.636385]  ? __schedule+0x10cc/0x2b60
[   27.636417]  ? __pfx_read_tsc+0x10/0x10
[   27.636444]  ? ktime_get_ts64+0x86/0x230
[   27.636472]  kunit_try_run_case+0x1a5/0x480
[   27.636496]  ? __pfx_kunit_try_run_case+0x10/0x10
[   27.636518]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   27.636541]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   27.636572]  ? __kthread_parkme+0x82/0x180
[   27.636596]  ? preempt_count_sub+0x50/0x80
[   27.636621]  ? __pfx_kunit_try_run_case+0x10/0x10
[   27.636645]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   27.636673]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   27.636701]  kthread+0x337/0x6f0
[   27.636724]  ? trace_preempt_on+0x20/0xc0
[   27.636752]  ? __pfx_kthread+0x10/0x10
[   27.636776]  ? _raw_spin_unlock_irq+0x47/0x80
[   27.636805]  ? calculate_sigpending+0x7b/0xa0
[   27.636845]  ? __pfx_kthread+0x10/0x10
[   27.636870]  ret_from_fork+0x116/0x1d0
[   27.636892]  ? __pfx_kthread+0x10/0x10
[   27.636916]  ret_from_fork_asm+0x1a/0x30
[   27.636952]  </TASK>
[   27.636965] 
[   27.643819] Allocated by task 333:
[   27.644042]  kasan_save_stack+0x45/0x70
[   27.644247]  kasan_save_track+0x18/0x40
[   27.644432]  kasan_save_alloc_info+0x3b/0x50
[   27.644630]  __kasan_kmalloc+0xb7/0xc0
[   27.644768]  __kmalloc_noprof+0x1c9/0x500
[   27.645086]  kunit_kmalloc_array+0x25/0x60
[   27.645266]  copy_user_test_oob+0xab/0x10f0
[   27.645469]  kunit_try_run_case+0x1a5/0x480
[   27.645607]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   27.645779]  kthread+0x337/0x6f0
[   27.645952]  ret_from_fork+0x116/0x1d0
[   27.646140]  ret_from_fork_asm+0x1a/0x30
[   27.646484] 
[   27.646567] The buggy address belongs to the object at ffff8881062af800
[   27.646567]  which belongs to the cache kmalloc-128 of size 128
[   27.646920] The buggy address is located 0 bytes inside of
[   27.646920]  allocated 120-byte region [ffff8881062af800, ffff8881062af878)
[   27.647492] 
[   27.647678] The buggy address belongs to the physical page:
[   27.648052] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1062af
[   27.648340] flags: 0x200000000000000(node=0|zone=2)
[   27.648501] page_type: f5(slab)
[   27.648617] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000
[   27.648897] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   27.649235] page dumped because: kasan: bad access detected
[   27.649495] 
[   27.649585] Memory state around the buggy address:
[   27.649811]  ffff8881062af700: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   27.650144]  ffff8881062af780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   27.650422] >ffff8881062af800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   27.650662]                                                                 ^
[   27.650870]  ffff8881062af880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   27.651421]  ffff8881062af900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   27.651726] ==================================================================