[   21.971126] ==================================================================
[   21.971538] BUG: KASAN: slab-out-of-bounds in _copy_to_user+0x3c/0x70
[   21.972117] Read of size 121 at addr ffff88810232e100 by task kunit_try_catch/302
[   21.972573] 
[   21.972808] CPU: 0 UID: 0 PID: 302 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-rc6-next-20250512 #1 PREEMPT(voluntary) 
[   21.972960] Tainted: [B]=BAD_PAGE, [N]=TEST
[   21.972991] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   21.973062] Call Trace:
[   21.973104]  <TASK>
[   21.973183]  dump_stack_lvl+0x73/0xb0
[   21.973271]  print_report+0xd1/0x650
[   21.973325]  ? __virt_addr_valid+0x1db/0x2d0
[   21.973372]  ? _copy_to_user+0x3c/0x70
[   21.973413]  ? kasan_complete_mode_report_info+0x2a/0x200
[   21.973500]  ? _copy_to_user+0x3c/0x70
[   21.973549]  kasan_report+0x141/0x180
[   21.973600]  ? _copy_to_user+0x3c/0x70
[   21.973649]  kasan_check_range+0x10c/0x1c0
[   21.973719]  __kasan_check_read+0x15/0x20
[   21.973799]  _copy_to_user+0x3c/0x70
[   21.973838]  copy_user_test_oob+0x364/0x10f0
[   21.973893]  ? __pfx_copy_user_test_oob+0x10/0x10
[   21.973943]  ? finish_task_switch.isra.0+0x153/0x700
[   21.973987]  ? __switch_to+0x47/0xf50
[   21.974018]  ? __schedule+0x10cc/0x2b60
[   21.974043]  ? __pfx_read_tsc+0x10/0x10
[   21.974070]  ? ktime_get_ts64+0x86/0x230
[   21.974098]  kunit_try_run_case+0x1a5/0x480
[   21.974125]  ? __pfx_kunit_try_run_case+0x10/0x10
[   21.974151]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   21.974178]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   21.974203]  ? __kthread_parkme+0x82/0x180
[   21.974226]  ? preempt_count_sub+0x50/0x80
[   21.974252]  ? __pfx_kunit_try_run_case+0x10/0x10
[   21.974306]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   21.974333]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   21.974359]  kthread+0x337/0x6f0
[   21.974382]  ? trace_preempt_on+0x20/0xc0
[   21.974410]  ? __pfx_kthread+0x10/0x10
[   21.974434]  ? _raw_spin_unlock_irq+0x47/0x80
[   21.974458]  ? calculate_sigpending+0x7b/0xa0
[   21.974485]  ? __pfx_kthread+0x10/0x10
[   21.974510]  ret_from_fork+0x116/0x1d0
[   21.974531]  ? __pfx_kthread+0x10/0x10
[   21.974556]  ret_from_fork_asm+0x1a/0x30
[   21.974589]  </TASK>
[   21.974605] 
[   21.986387] Allocated by task 302:
[   21.986621]  kasan_save_stack+0x45/0x70
[   21.986796]  kasan_save_track+0x18/0x40
[   21.986974]  kasan_save_alloc_info+0x3b/0x50
[   21.987187]  __kasan_kmalloc+0xb7/0xc0
[   21.989173]  __kmalloc_noprof+0x1c9/0x500
[   21.989523]  kunit_kmalloc_array+0x25/0x60
[   21.989876]  copy_user_test_oob+0xab/0x10f0
[   21.990312]  kunit_try_run_case+0x1a5/0x480
[   21.990758]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   21.991082]  kthread+0x337/0x6f0
[   21.991235]  ret_from_fork+0x116/0x1d0
[   21.991472]  ret_from_fork_asm+0x1a/0x30
[   21.992117] 
[   21.992334] The buggy address belongs to the object at ffff88810232e100
[   21.992334]  which belongs to the cache kmalloc-128 of size 128
[   21.993284] The buggy address is located 0 bytes inside of
[   21.993284]  allocated 120-byte region [ffff88810232e100, ffff88810232e178)
[   21.993719] 
[   21.993893] The buggy address belongs to the physical page:
[   21.994405] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10232e
[   21.994964] flags: 0x200000000000000(node=0|zone=2)
[   21.995438] page_type: f5(slab)
[   21.995805] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000
[   21.996423] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   21.996933] page dumped because: kasan: bad access detected
[   21.997315] 
[   21.997418] Memory state around the buggy address:
[   21.997606]  ffff88810232e000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   21.998485]  ffff88810232e080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   21.999187] >ffff88810232e100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   21.999750]                                                                 ^
[   22.000387]  ffff88810232e180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   22.000991]  ffff88810232e200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   22.001633] ==================================================================