[   29.275257] ==================================================================
[   29.275973] BUG: KASAN: slab-out-of-bounds in _copy_from_user+0x32/0x90
[   29.276407] Write of size 121 at addr ffff8881060a7500 by task kunit_try_catch/334
[   29.276719] 
[   29.276814] CPU: 0 UID: 0 PID: 334 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc7-next-20250723 #1 PREEMPT(voluntary) 
[   29.276872] Tainted: [B]=BAD_PAGE, [N]=TEST
[   29.276886] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   29.276913] Call Trace:
[   29.276929]  <TASK>
[   29.276952]  dump_stack_lvl+0x73/0xb0
[   29.276985]  print_report+0xd1/0x640
[   29.277012]  ? __virt_addr_valid+0x1db/0x2d0
[   29.277040]  ? _copy_from_user+0x32/0x90
[   29.277062]  ? kasan_complete_mode_report_info+0x2a/0x200
[   29.277089]  ? _copy_from_user+0x32/0x90
[   29.277110]  kasan_report+0x141/0x180
[   29.277135]  ? _copy_from_user+0x32/0x90
[   29.277172]  kasan_check_range+0x10c/0x1c0
[   29.277197]  __kasan_check_write+0x18/0x20
[   29.277222]  _copy_from_user+0x32/0x90
[   29.277245]  copy_user_test_oob+0x2be/0x10f0
[   29.277273]  ? __pfx_copy_user_test_oob+0x10/0x10
[   29.277298]  ? finish_task_switch.isra.0+0x153/0x700
[   29.277323]  ? __switch_to+0x47/0xf80
[   29.277352]  ? __schedule+0x10da/0x2b60
[   29.277399]  ? __pfx_read_tsc+0x10/0x10
[   29.277424]  ? ktime_get_ts64+0x86/0x230
[   29.277453]  kunit_try_run_case+0x1a5/0x480
[   29.277479]  ? __pfx_kunit_try_run_case+0x10/0x10
[   29.277502]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   29.277530]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   29.277555]  ? __kthread_parkme+0x82/0x180
[   29.277577]  ? preempt_count_sub+0x50/0x80
[   29.277602]  ? __pfx_kunit_try_run_case+0x10/0x10
[   29.277627]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   29.277651]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   29.277676]  kthread+0x337/0x6f0
[   29.277698]  ? trace_preempt_on+0x20/0xc0
[   29.277725]  ? __pfx_kthread+0x10/0x10
[   29.277746]  ? _raw_spin_unlock_irq+0x47/0x80
[   29.277771]  ? calculate_sigpending+0x7b/0xa0
[   29.277797]  ? __pfx_kthread+0x10/0x10
[   29.277819]  ret_from_fork+0x116/0x1d0
[   29.277841]  ? __pfx_kthread+0x10/0x10
[   29.277862]  ret_from_fork_asm+0x1a/0x30
[   29.277923]  </TASK>
[   29.277936] 
[   29.289801] Allocated by task 334:
[   29.290287]  kasan_save_stack+0x45/0x70
[   29.290583]  kasan_save_track+0x18/0x40
[   29.290775]  kasan_save_alloc_info+0x3b/0x50
[   29.290972]  __kasan_kmalloc+0xb7/0xc0
[   29.291377]  __kmalloc_noprof+0x1ca/0x510
[   29.291767]  kunit_kmalloc_array+0x25/0x60
[   29.291970]  copy_user_test_oob+0xab/0x10f0
[   29.292334]  kunit_try_run_case+0x1a5/0x480
[   29.292711]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   29.292926]  kthread+0x337/0x6f0
[   29.293088]  ret_from_fork+0x116/0x1d0
[   29.293274]  ret_from_fork_asm+0x1a/0x30
[   29.293884] 
[   29.293982] The buggy address belongs to the object at ffff8881060a7500
[   29.293982]  which belongs to the cache kmalloc-128 of size 128
[   29.294949] The buggy address is located 0 bytes inside of
[   29.294949]  allocated 120-byte region [ffff8881060a7500, ffff8881060a7578)
[   29.295841] 
[   29.295960] The buggy address belongs to the physical page:
[   29.296411] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1060a7
[   29.296775] flags: 0x200000000000000(node=0|zone=2)
[   29.297010] page_type: f5(slab)
[   29.297196] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000
[   29.297819] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   29.298377] page dumped because: kasan: bad access detected
[   29.298730] 
[   29.298807] Memory state around the buggy address:
[   29.299195]  ffff8881060a7400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   29.299753]  ffff8881060a7480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   29.300202] >ffff8881060a7500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   29.300629]                                                                 ^
[   29.301161]  ffff8881060a7580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   29.301449]  ffff8881060a7600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   29.301736] ==================================================================