[   27.998400] ==================================================================
[   27.998701] BUG: KASAN: slab-out-of-bounds in _copy_to_user+0x3c/0x70
[   27.999030] Read of size 121 at addr ffff88810622c200 by task kunit_try_catch/335
[   27.999327] 
[   27.999424] CPU: 0 UID: 0 PID: 335 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc5-next-20250711 #1 PREEMPT(voluntary) 
[   27.999478] Tainted: [B]=BAD_PAGE, [N]=TEST
[   27.999492] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   27.999537] Call Trace:
[   27.999556]  <TASK>
[   27.999591]  dump_stack_lvl+0x73/0xb0
[   27.999623]  print_report+0xd1/0x610
[   27.999647]  ? __virt_addr_valid+0x1db/0x2d0
[   27.999672]  ? _copy_to_user+0x3c/0x70
[   27.999694]  ? kasan_complete_mode_report_info+0x2a/0x200
[   27.999722]  ? _copy_to_user+0x3c/0x70
[   27.999756]  kasan_report+0x141/0x180
[   27.999779]  ? _copy_to_user+0x3c/0x70
[   27.999805]  kasan_check_range+0x10c/0x1c0
[   27.999830]  __kasan_check_read+0x15/0x20
[   27.999874]  _copy_to_user+0x3c/0x70
[   27.999897]  copy_user_test_oob+0x364/0x10f0
[   27.999923]  ? __pfx_copy_user_test_oob+0x10/0x10
[   27.999947]  ? finish_task_switch.isra.0+0x153/0x700
[   27.999972]  ? __switch_to+0x47/0xf80
[   28.000000]  ? __schedule+0x10cc/0x2b60
[   28.000039]  ? __pfx_read_tsc+0x10/0x10
[   28.000062]  ? ktime_get_ts64+0x86/0x230
[   28.000088]  kunit_try_run_case+0x1a5/0x480
[   28.000110]  ? __pfx_kunit_try_run_case+0x10/0x10
[   28.000131]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   28.000157]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   28.000182]  ? __kthread_parkme+0x82/0x180
[   28.000203]  ? preempt_count_sub+0x50/0x80
[   28.000227]  ? __pfx_kunit_try_run_case+0x10/0x10
[   28.000250]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   28.000276]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   28.000302]  kthread+0x337/0x6f0
[   28.000329]  ? trace_preempt_on+0x20/0xc0
[   28.000354]  ? __pfx_kthread+0x10/0x10
[   28.000376]  ? _raw_spin_unlock_irq+0x47/0x80
[   28.000399]  ? calculate_sigpending+0x7b/0xa0
[   28.000435]  ? __pfx_kthread+0x10/0x10
[   28.000457]  ret_from_fork+0x116/0x1d0
[   28.000477]  ? __pfx_kthread+0x10/0x10
[   28.000499]  ret_from_fork_asm+0x1a/0x30
[   28.000531]  </TASK>
[   28.000543] 
[   28.008016] Allocated by task 335:
[   28.008182]  kasan_save_stack+0x45/0x70
[   28.008360]  kasan_save_track+0x18/0x40
[   28.008589]  kasan_save_alloc_info+0x3b/0x50
[   28.008782]  __kasan_kmalloc+0xb7/0xc0
[   28.008910]  __kmalloc_noprof+0x1c9/0x500
[   28.009048]  kunit_kmalloc_array+0x25/0x60
[   28.009182]  copy_user_test_oob+0xab/0x10f0
[   28.009383]  kunit_try_run_case+0x1a5/0x480
[   28.009580]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   28.009833]  kthread+0x337/0x6f0
[   28.009950]  ret_from_fork+0x116/0x1d0
[   28.010077]  ret_from_fork_asm+0x1a/0x30
[   28.010209] 
[   28.010336] The buggy address belongs to the object at ffff88810622c200
[   28.010336]  which belongs to the cache kmalloc-128 of size 128
[   28.011170] The buggy address is located 0 bytes inside of
[   28.011170]  allocated 120-byte region [ffff88810622c200, ffff88810622c278)
[   28.011644] 
[   28.011747] The buggy address belongs to the physical page:
[   28.011966] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10622c
[   28.012225] flags: 0x200000000000000(node=0|zone=2)
[   28.012401] page_type: f5(slab)
[   28.012577] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000
[   28.012921] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   28.013141] page dumped because: kasan: bad access detected
[   28.013306] 
[   28.013396] Memory state around the buggy address:
[   28.013625]  ffff88810622c100: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   28.013945]  ffff88810622c180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   28.014193] >ffff88810622c200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   28.014398]                                                                 ^
[   28.014637]  ffff88810622c280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   28.015043]  ffff88810622c300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   28.015354] ==================================================================