[   15.518512] ==================================================================
[   15.519165] BUG: KASAN: slab-out-of-bounds in _copy_to_user+0x3c/0x70
[   15.519385] Read of size 121 at addr ffff888102b2dc00 by task kunit_try_catch/302
[   15.519615] 
[   15.519802] CPU: 0 UID: 0 PID: 302 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-next-20250605 #1 PREEMPT(voluntary) 
[   15.519847] Tainted: [B]=BAD_PAGE, [N]=TEST
[   15.519860] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   15.519882] Call Trace:
[   15.519907]  <TASK>
[   15.519922]  dump_stack_lvl+0x73/0xb0
[   15.519948]  print_report+0xd1/0x650
[   15.519973]  ? __virt_addr_valid+0x1db/0x2d0
[   15.519998]  ? _copy_to_user+0x3c/0x70
[   15.520020]  ? kasan_complete_mode_report_info+0x2a/0x200
[   15.520046]  ? _copy_to_user+0x3c/0x70
[   15.520068]  kasan_report+0x141/0x180
[   15.520092]  ? _copy_to_user+0x3c/0x70
[   15.520119]  kasan_check_range+0x10c/0x1c0
[   15.520145]  __kasan_check_read+0x15/0x20
[   15.520167]  _copy_to_user+0x3c/0x70
[   15.520188]  copy_user_test_oob+0x364/0x10f0
[   15.520216]  ? __pfx_copy_user_test_oob+0x10/0x10
[   15.520242]  ? finish_task_switch.isra.0+0x153/0x700
[   15.520268]  ? __switch_to+0x47/0xf50
[   15.520294]  ? __schedule+0x10cc/0x2b60
[   15.520319]  ? __pfx_read_tsc+0x10/0x10
[   15.520342]  ? ktime_get_ts64+0x86/0x230
[   15.520368]  kunit_try_run_case+0x1a5/0x480
[   15.520391]  ? __pfx_kunit_try_run_case+0x10/0x10
[   15.520414]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   15.520441]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   15.520468]  ? __kthread_parkme+0x82/0x180
[   15.520490]  ? preempt_count_sub+0x50/0x80
[   15.520514]  ? __pfx_kunit_try_run_case+0x10/0x10
[   15.520539]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   15.520567]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   15.520595]  kthread+0x337/0x6f0
[   15.520616]  ? trace_preempt_on+0x20/0xc0
[   15.520641]  ? __pfx_kthread+0x10/0x10
[   15.520674]  ? _raw_spin_unlock_irq+0x47/0x80
[   15.520699]  ? calculate_sigpending+0x7b/0xa0
[   15.520725]  ? __pfx_kthread+0x10/0x10
[   15.520748]  ret_from_fork+0x116/0x1d0
[   15.520769]  ? __pfx_kthread+0x10/0x10
[   15.520791]  ret_from_fork_asm+0x1a/0x30
[   15.520823]  </TASK>
[   15.520835] 
[   15.533423] Allocated by task 302:
[   15.533565]  kasan_save_stack+0x45/0x70
[   15.533747]  kasan_save_track+0x18/0x40
[   15.533886]  kasan_save_alloc_info+0x3b/0x50
[   15.534494]  __kasan_kmalloc+0xb7/0xc0
[   15.535171]  __kmalloc_noprof+0x1c9/0x500
[   15.535427]  kunit_kmalloc_array+0x25/0x60
[   15.535671]  copy_user_test_oob+0xab/0x10f0
[   15.536038]  kunit_try_run_case+0x1a5/0x480
[   15.536263]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   15.536613]  kthread+0x337/0x6f0
[   15.536888]  ret_from_fork+0x116/0x1d0
[   15.537159]  ret_from_fork_asm+0x1a/0x30
[   15.537376] 
[   15.537565] The buggy address belongs to the object at ffff888102b2dc00
[   15.537565]  which belongs to the cache kmalloc-128 of size 128
[   15.538474] The buggy address is located 0 bytes inside of
[   15.538474]  allocated 120-byte region [ffff888102b2dc00, ffff888102b2dc78)
[   15.539060] 
[   15.539162] The buggy address belongs to the physical page:
[   15.539571] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102b2d
[   15.540127] flags: 0x200000000000000(node=0|zone=2)
[   15.540366] page_type: f5(slab)
[   15.540729] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000
[   15.541080] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   15.541487] page dumped because: kasan: bad access detected
[   15.541907] 
[   15.542012] Memory state around the buggy address:
[   15.542303]  ffff888102b2db00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   15.542641]  ffff888102b2db80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   15.543111] >ffff888102b2dc00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   15.543540]                                                                 ^
[   15.544059]  ffff888102b2dc80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   15.544370]  ffff888102b2dd00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   15.544963] ==================================================================