[   14.826891] ==================================================================
[   14.827518] BUG: KASAN: slab-out-of-bounds in _copy_from_user+0x32/0x90
[   14.827897] Write of size 121 at addr ffff888102f96900 by task kunit_try_catch/302
[   14.828274] 
[   14.828407] CPU: 0 UID: 0 PID: 302 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-next-20250529 #1 PREEMPT(voluntary) 
[   14.828460] Tainted: [B]=BAD_PAGE, [N]=TEST
[   14.828474] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   14.828498] Call Trace:
[   14.828514]  <TASK>
[   14.828535]  dump_stack_lvl+0x73/0xb0
[   14.828590]  print_report+0xd1/0x650
[   14.828627]  ? __virt_addr_valid+0x1db/0x2d0
[   14.828672]  ? _copy_from_user+0x32/0x90
[   14.828694]  ? kasan_complete_mode_report_info+0x2a/0x200
[   14.828718]  ? _copy_from_user+0x32/0x90
[   14.828740]  kasan_report+0x141/0x180
[   14.828783]  ? _copy_from_user+0x32/0x90
[   14.828810]  kasan_check_range+0x10c/0x1c0
[   14.828835]  __kasan_check_write+0x18/0x20
[   14.828857]  _copy_from_user+0x32/0x90
[   14.828880]  copy_user_test_oob+0x2be/0x10f0
[   14.828905]  ? __pfx_copy_user_test_oob+0x10/0x10
[   14.828946]  ? finish_task_switch.isra.0+0x153/0x700
[   14.828999]  ? __switch_to+0x47/0xf50
[   14.829040]  ? __schedule+0x10cc/0x2b60
[   14.829066]  ? __pfx_read_tsc+0x10/0x10
[   14.829089]  ? ktime_get_ts64+0x86/0x230
[   14.829115]  kunit_try_run_case+0x1a5/0x480
[   14.829137]  ? __pfx_kunit_try_run_case+0x10/0x10
[   14.829159]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   14.829186]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   14.829230]  ? __kthread_parkme+0x82/0x180
[   14.829252]  ? preempt_count_sub+0x50/0x80
[   14.829277]  ? __pfx_kunit_try_run_case+0x10/0x10
[   14.829300]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   14.829326]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   14.829352]  kthread+0x337/0x6f0
[   14.829373]  ? trace_preempt_on+0x20/0xc0
[   14.829399]  ? __pfx_kthread+0x10/0x10
[   14.829420]  ? _raw_spin_unlock_irq+0x47/0x80
[   14.829445]  ? calculate_sigpending+0x7b/0xa0
[   14.829471]  ? __pfx_kthread+0x10/0x10
[   14.829493]  ret_from_fork+0x116/0x1d0
[   14.829513]  ? __pfx_kthread+0x10/0x10
[   14.829534]  ret_from_fork_asm+0x1a/0x30
[   14.829567]  </TASK>
[   14.829579] 
[   14.840680] Allocated by task 302:
[   14.841235]  kasan_save_stack+0x45/0x70
[   14.841560]  kasan_save_track+0x18/0x40
[   14.841849]  kasan_save_alloc_info+0x3b/0x50
[   14.842057]  __kasan_kmalloc+0xb7/0xc0
[   14.842233]  __kmalloc_noprof+0x1c9/0x500
[   14.842413]  kunit_kmalloc_array+0x25/0x60
[   14.842590]  copy_user_test_oob+0xab/0x10f0
[   14.843268]  kunit_try_run_case+0x1a5/0x480
[   14.843478]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   14.843729]  kthread+0x337/0x6f0
[   14.843964]  ret_from_fork+0x116/0x1d0
[   14.844141]  ret_from_fork_asm+0x1a/0x30
[   14.844322] 
[   14.844419] The buggy address belongs to the object at ffff888102f96900
[   14.844419]  which belongs to the cache kmalloc-128 of size 128
[   14.844895] The buggy address is located 0 bytes inside of
[   14.844895]  allocated 120-byte region [ffff888102f96900, ffff888102f96978)
[   14.845356] 
[   14.845436] The buggy address belongs to the physical page:
[   14.845844] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102f96
[   14.846372] flags: 0x200000000000000(node=0|zone=2)
[   14.846956] page_type: f5(slab)
[   14.847165] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000
[   14.847522] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   14.848208] page dumped because: kasan: bad access detected
[   14.848733] 
[   14.848972] Memory state around the buggy address:
[   14.849197]  ffff888102f96800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   14.849499]  ffff888102f96880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   14.850043] >ffff888102f96900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   14.850552]                                                                 ^
[   14.851316]  ffff888102f96980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   14.851888]  ffff888102f96a00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   14.852219] ==================================================================