[   15.117015] ==================================================================
[   15.118368] BUG: KASAN: slab-out-of-bounds in _copy_from_user+0x32/0x90
[   15.118677] Write of size 121 at addr ffff8881029cec00 by task kunit_try_catch/302
[   15.118910] 
[   15.119007] CPU: 0 UID: 0 PID: 302 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-rc6-next-20250513 #1 PREEMPT(voluntary) 
[   15.119061] Tainted: [B]=BAD_PAGE, [N]=TEST
[   15.119076] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   15.119099] Call Trace:
[   15.119114]  <TASK>
[   15.119134]  dump_stack_lvl+0x73/0xb0
[   15.119195]  print_report+0xd1/0x650
[   15.119223]  ? __virt_addr_valid+0x1db/0x2d0
[   15.119249]  ? _copy_from_user+0x32/0x90
[   15.119269]  ? kasan_complete_mode_report_info+0x2a/0x200
[   15.119294]  ? _copy_from_user+0x32/0x90
[   15.119315]  kasan_report+0x141/0x180
[   15.119339]  ? _copy_from_user+0x32/0x90
[   15.119365]  kasan_check_range+0x10c/0x1c0
[   15.119390]  __kasan_check_write+0x18/0x20
[   15.119411]  _copy_from_user+0x32/0x90
[   15.119432]  copy_user_test_oob+0x2be/0x10f0
[   15.119456]  ? __pfx_copy_user_test_oob+0x10/0x10
[   15.119476]  ? finish_task_switch.isra.0+0x153/0x700
[   15.119501]  ? __switch_to+0x47/0xf50
[   15.119529]  ? __schedule+0x10cc/0x2b60
[   15.119553]  ? __pfx_read_tsc+0x10/0x10
[   15.119575]  ? ktime_get_ts64+0x86/0x230
[   15.119602]  kunit_try_run_case+0x1a5/0x480
[   15.119636]  ? __pfx_kunit_try_run_case+0x10/0x10
[   15.119658]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   15.119683]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   15.119706]  ? __kthread_parkme+0x82/0x180
[   15.119728]  ? preempt_count_sub+0x50/0x80
[   15.119753]  ? __pfx_kunit_try_run_case+0x10/0x10
[   15.119777]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   15.119801]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   15.119824]  kthread+0x337/0x6f0
[   15.119846]  ? trace_preempt_on+0x20/0xc0
[   15.119871]  ? __pfx_kthread+0x10/0x10
[   15.119892]  ? _raw_spin_unlock_irq+0x47/0x80
[   15.119913]  ? calculate_sigpending+0x7b/0xa0
[   15.119939]  ? __pfx_kthread+0x10/0x10
[   15.119961]  ret_from_fork+0x116/0x1d0
[   15.119981]  ? __pfx_kthread+0x10/0x10
[   15.120003]  ret_from_fork_asm+0x1a/0x30
[   15.120037]  </TASK>
[   15.120050] 
[   15.132540] Allocated by task 302:
[   15.132729]  kasan_save_stack+0x45/0x70
[   15.132875]  kasan_save_track+0x18/0x40
[   15.133013]  kasan_save_alloc_info+0x3b/0x50
[   15.133159]  __kasan_kmalloc+0xb7/0xc0
[   15.133531]  __kmalloc_noprof+0x1c9/0x500
[   15.133901]  kunit_kmalloc_array+0x25/0x60
[   15.134302]  copy_user_test_oob+0xab/0x10f0
[   15.134714]  kunit_try_run_case+0x1a5/0x480
[   15.135084]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   15.135571]  kthread+0x337/0x6f0
[   15.135878]  ret_from_fork+0x116/0x1d0
[   15.136082]  ret_from_fork_asm+0x1a/0x30
[   15.136367] 
[   15.136537] The buggy address belongs to the object at ffff8881029cec00
[   15.136537]  which belongs to the cache kmalloc-128 of size 128
[   15.137302] The buggy address is located 0 bytes inside of
[   15.137302]  allocated 120-byte region [ffff8881029cec00, ffff8881029cec78)
[   15.138087] 
[   15.138186] The buggy address belongs to the physical page:
[   15.138693] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1029ce
[   15.139343] flags: 0x200000000000000(node=0|zone=2)
[   15.139519] page_type: f5(slab)
[   15.139654] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000
[   15.139897] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   15.140135] page dumped because: kasan: bad access detected
[   15.140637] 
[   15.140798] Memory state around the buggy address:
[   15.141236]  ffff8881029ceb00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   15.141870]  ffff8881029ceb80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   15.142512] >ffff8881029cec00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   15.143135]                                                                 ^
[   15.143794]  ffff8881029cec80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   15.144442]  ffff8881029ced00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   15.144834] ==================================================================