[   27.608903] ==================================================================
[   27.609475] BUG: KASAN: slab-out-of-bounds in _copy_from_user+0x32/0x90
[   27.609799] Write of size 121 at addr ffff8881062af800 by task kunit_try_catch/333
[   27.610136] 
[   27.610310] CPU: 1 UID: 0 PID: 333 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc5-next-20250708 #1 PREEMPT(voluntary) 
[   27.610374] Tainted: [B]=BAD_PAGE, [N]=TEST
[   27.610389] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   27.610417] Call Trace:
[   27.610433]  <TASK>
[   27.610458]  dump_stack_lvl+0x73/0xb0
[   27.610495]  print_report+0xd1/0x610
[   27.610522]  ? __virt_addr_valid+0x1db/0x2d0
[   27.610552]  ? _copy_from_user+0x32/0x90
[   27.610576]  ? kasan_complete_mode_report_info+0x2a/0x200
[   27.610608]  ? _copy_from_user+0x32/0x90
[   27.610633]  kasan_report+0x141/0x180
[   27.610657]  ? _copy_from_user+0x32/0x90
[   27.610685]  kasan_check_range+0x10c/0x1c0
[   27.610712]  __kasan_check_write+0x18/0x20
[   27.610739]  _copy_from_user+0x32/0x90
[   27.610765]  copy_user_test_oob+0x2be/0x10f0
[   27.610794]  ? __pfx_copy_user_test_oob+0x10/0x10
[   27.610834]  ? finish_task_switch.isra.0+0x153/0x700
[   27.610860]  ? __switch_to+0x47/0xf50
[   27.610892]  ? __schedule+0x10cc/0x2b60
[   27.610923]  ? __pfx_read_tsc+0x10/0x10
[   27.610951]  ? ktime_get_ts64+0x86/0x230
[   27.610982]  kunit_try_run_case+0x1a5/0x480
[   27.611005]  ? __pfx_kunit_try_run_case+0x10/0x10
[   27.611027]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   27.611051]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   27.611082]  ? __kthread_parkme+0x82/0x180
[   27.611106]  ? preempt_count_sub+0x50/0x80
[   27.611131]  ? __pfx_kunit_try_run_case+0x10/0x10
[   27.611154]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   27.611183]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   27.611211]  kthread+0x337/0x6f0
[   27.611248]  ? trace_preempt_on+0x20/0xc0
[   27.611276]  ? __pfx_kthread+0x10/0x10
[   27.611300]  ? _raw_spin_unlock_irq+0x47/0x80
[   27.611329]  ? calculate_sigpending+0x7b/0xa0
[   27.611359]  ? __pfx_kthread+0x10/0x10
[   27.611384]  ret_from_fork+0x116/0x1d0
[   27.611405]  ? __pfx_kthread+0x10/0x10
[   27.611429]  ret_from_fork_asm+0x1a/0x30
[   27.611465]  </TASK>
[   27.611479] 
[   27.620996] Allocated by task 333:
[   27.621318]  kasan_save_stack+0x45/0x70
[   27.621529]  kasan_save_track+0x18/0x40
[   27.621854]  kasan_save_alloc_info+0x3b/0x50
[   27.622168]  __kasan_kmalloc+0xb7/0xc0
[   27.622346]  __kmalloc_noprof+0x1c9/0x500
[   27.622636]  kunit_kmalloc_array+0x25/0x60
[   27.623021]  copy_user_test_oob+0xab/0x10f0
[   27.623234]  kunit_try_run_case+0x1a5/0x480
[   27.623565]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   27.623829]  kthread+0x337/0x6f0
[   27.624147]  ret_from_fork+0x116/0x1d0
[   27.624431]  ret_from_fork_asm+0x1a/0x30
[   27.624649] 
[   27.624743] The buggy address belongs to the object at ffff8881062af800
[   27.624743]  which belongs to the cache kmalloc-128 of size 128
[   27.625472] The buggy address is located 0 bytes inside of
[   27.625472]  allocated 120-byte region [ffff8881062af800, ffff8881062af878)
[   27.626155] 
[   27.626273] The buggy address belongs to the physical page:
[   27.626650] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1062af
[   27.627073] flags: 0x200000000000000(node=0|zone=2)
[   27.627388] page_type: f5(slab)
[   27.627547] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000
[   27.628019] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   27.628311] page dumped because: kasan: bad access detected
[   27.628545] 
[   27.628616] Memory state around the buggy address:
[   27.628826]  ffff8881062af700: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   27.629428]  ffff8881062af780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   27.629783] >ffff8881062af800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   27.630096]                                                                 ^
[   27.630501]  ffff8881062af880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   27.630841]  ffff8881062af900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   27.631227] ==================================================================