[   29.562054] ==================================================================
[   29.563544] BUG: KASAN: slab-out-of-bounds in _copy_from_user+0x32/0x90
[   29.563798] Write of size 121 at addr ffff888104588600 by task kunit_try_catch/334
[   29.564024] 
[   29.564119] CPU: 1 UID: 0 PID: 334 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc6-next-20250717 #1 PREEMPT(voluntary) 
[   29.564173] Tainted: [B]=BAD_PAGE, [N]=TEST
[   29.564185] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   29.564210] Call Trace:
[   29.564223]  <TASK>
[   29.564246]  dump_stack_lvl+0x73/0xb0
[   29.564277]  print_report+0xd1/0x610
[   29.564302]  ? __virt_addr_valid+0x1db/0x2d0
[   29.564327]  ? _copy_from_user+0x32/0x90
[   29.564351]  ? kasan_complete_mode_report_info+0x2a/0x200
[   29.564377]  ? _copy_from_user+0x32/0x90
[   29.564401]  kasan_report+0x141/0x180
[   29.564423]  ? _copy_from_user+0x32/0x90
[   29.564452]  kasan_check_range+0x10c/0x1c0
[   29.564476]  __kasan_check_write+0x18/0x20
[   29.564500]  _copy_from_user+0x32/0x90
[   29.564524]  copy_user_test_oob+0x2be/0x10f0
[   29.564550]  ? __pfx_copy_user_test_oob+0x10/0x10
[   29.564586]  ? finish_task_switch.isra.0+0x153/0x700
[   29.564608]  ? __switch_to+0x47/0xf80
[   29.564648]  ? __schedule+0x10c6/0x2b60
[   29.564672]  ? __pfx_read_tsc+0x10/0x10
[   29.564694]  ? ktime_get_ts64+0x86/0x230
[   29.564722]  kunit_try_run_case+0x1a5/0x480
[   29.564746]  ? __pfx_kunit_try_run_case+0x10/0x10
[   29.564767]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   29.564791]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   29.564814]  ? __kthread_parkme+0x82/0x180
[   29.564839]  ? preempt_count_sub+0x50/0x80
[   29.564862]  ? __pfx_kunit_try_run_case+0x10/0x10
[   29.564886]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   29.564909]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   29.564942]  kthread+0x337/0x6f0
[   29.564962]  ? trace_preempt_on+0x20/0xc0
[   29.564986]  ? __pfx_kthread+0x10/0x10
[   29.565024]  ? _raw_spin_unlock_irq+0x47/0x80
[   29.565046]  ? calculate_sigpending+0x7b/0xa0
[   29.565070]  ? __pfx_kthread+0x10/0x10
[   29.565106]  ret_from_fork+0x116/0x1d0
[   29.565125]  ? __pfx_kthread+0x10/0x10
[   29.565146]  ret_from_fork_asm+0x1a/0x30
[   29.565178]  </TASK>
[   29.565190] 
[   29.576849] Allocated by task 334:
[   29.577036]  kasan_save_stack+0x45/0x70
[   29.577222]  kasan_save_track+0x18/0x40
[   29.577781]  kasan_save_alloc_info+0x3b/0x50
[   29.577975]  __kasan_kmalloc+0xb7/0xc0
[   29.578366]  __kmalloc_noprof+0x1ca/0x510
[   29.578564]  kunit_kmalloc_array+0x25/0x60
[   29.578950]  copy_user_test_oob+0xab/0x10f0
[   29.579269]  kunit_try_run_case+0x1a5/0x480
[   29.579613]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   29.579862]  kthread+0x337/0x6f0
[   29.580015]  ret_from_fork+0x116/0x1d0
[   29.580200]  ret_from_fork_asm+0x1a/0x30
[   29.580617] 
[   29.580714] The buggy address belongs to the object at ffff888104588600
[   29.580714]  which belongs to the cache kmalloc-128 of size 128
[   29.581494] The buggy address is located 0 bytes inside of
[   29.581494]  allocated 120-byte region [ffff888104588600, ffff888104588678)
[   29.582181] 
[   29.582264] The buggy address belongs to the physical page:
[   29.582761] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x104588
[   29.583251] flags: 0x200000000000000(node=0|zone=2)
[   29.583604] page_type: f5(slab)
[   29.583777] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000
[   29.584109] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   29.584661] page dumped because: kasan: bad access detected
[   29.585036] 
[   29.585147] Memory state around the buggy address:
[   29.585560]  ffff888104588500: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   29.585970]  ffff888104588580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   29.586380] >ffff888104588600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   29.586814]                                                                 ^
[   29.587237]  ffff888104588680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   29.587666]  ffff888104588700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   29.588058] ==================================================================