[   27.216302] ==================================================================
[   27.216838] BUG: KASAN: slab-out-of-bounds in _copy_to_user+0x3c/0x70
[   27.217301] Read of size 121 at addr ffff88810611db00 by task kunit_try_catch/334
[   27.217659] 
[   27.217777] CPU: 0 UID: 0 PID: 334 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc6-next-20250716 #1 PREEMPT(voluntary) 
[   27.217830] Tainted: [B]=BAD_PAGE, [N]=TEST
[   27.217845] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   27.217868] Call Trace:
[   27.217886]  <TASK>
[   27.217924]  dump_stack_lvl+0x73/0xb0
[   27.217956]  print_report+0xd1/0x610
[   27.217980]  ? __virt_addr_valid+0x1db/0x2d0
[   27.218005]  ? _copy_to_user+0x3c/0x70
[   27.218028]  ? kasan_complete_mode_report_info+0x2a/0x200
[   27.218056]  ? _copy_to_user+0x3c/0x70
[   27.218080]  kasan_report+0x141/0x180
[   27.218103]  ? _copy_to_user+0x3c/0x70
[   27.218131]  kasan_check_range+0x10c/0x1c0
[   27.218155]  __kasan_check_read+0x15/0x20
[   27.218179]  _copy_to_user+0x3c/0x70
[   27.218205]  copy_user_test_oob+0x364/0x10f0
[   27.218231]  ? __pfx_copy_user_test_oob+0x10/0x10
[   27.218275]  ? finish_task_switch.isra.0+0x153/0x700
[   27.218297]  ? __switch_to+0x47/0xf80
[   27.218333]  ? __schedule+0x10c6/0x2b60
[   27.218357]  ? __pfx_read_tsc+0x10/0x10
[   27.218379]  ? ktime_get_ts64+0x86/0x230
[   27.218405]  kunit_try_run_case+0x1a5/0x480
[   27.218431]  ? __pfx_kunit_try_run_case+0x10/0x10
[   27.218454]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   27.218479]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   27.218503]  ? __kthread_parkme+0x82/0x180
[   27.218525]  ? preempt_count_sub+0x50/0x80
[   27.218548]  ? __pfx_kunit_try_run_case+0x10/0x10
[   27.218572]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   27.218604]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   27.218646]  kthread+0x337/0x6f0
[   27.218668]  ? trace_preempt_on+0x20/0xc0
[   27.218693]  ? __pfx_kthread+0x10/0x10
[   27.218715]  ? _raw_spin_unlock_irq+0x47/0x80
[   27.218736]  ? calculate_sigpending+0x7b/0xa0
[   27.218761]  ? __pfx_kthread+0x10/0x10
[   27.218783]  ret_from_fork+0x116/0x1d0
[   27.218803]  ? __pfx_kthread+0x10/0x10
[   27.218824]  ret_from_fork_asm+0x1a/0x30
[   27.218856]  </TASK>
[   27.218868] 
[   27.228394] Allocated by task 334:
[   27.228793]  kasan_save_stack+0x45/0x70
[   27.229023]  kasan_save_track+0x18/0x40
[   27.229316]  kasan_save_alloc_info+0x3b/0x50
[   27.229556]  __kasan_kmalloc+0xb7/0xc0
[   27.229867]  __kmalloc_noprof+0x1c9/0x500
[   27.230096]  kunit_kmalloc_array+0x25/0x60
[   27.230415]  copy_user_test_oob+0xab/0x10f0
[   27.230702]  kunit_try_run_case+0x1a5/0x480
[   27.230874]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   27.231150]  kthread+0x337/0x6f0
[   27.231303]  ret_from_fork+0x116/0x1d0
[   27.231486]  ret_from_fork_asm+0x1a/0x30
[   27.231667] 
[   27.232052] The buggy address belongs to the object at ffff88810611db00
[   27.232052]  which belongs to the cache kmalloc-128 of size 128
[   27.232618] The buggy address is located 0 bytes inside of
[   27.232618]  allocated 120-byte region [ffff88810611db00, ffff88810611db78)
[   27.233292] 
[   27.233582] The buggy address belongs to the physical page:
[   27.233852] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10611d
[   27.234195] flags: 0x200000000000000(node=0|zone=2)
[   27.234560] page_type: f5(slab)
[   27.234921] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000
[   27.235314] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   27.235802] page dumped because: kasan: bad access detected
[   27.236068] 
[   27.236156] Memory state around the buggy address:
[   27.236458]  ffff88810611da00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   27.237015]  ffff88810611da80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   27.237399] >ffff88810611db00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   27.237800]                                                                 ^
[   27.238164]  ffff88810611db80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   27.238571]  ffff88810611dc00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   27.238944] ==================================================================