[   30.639148] ==================================================================
[   30.639563] BUG: KASAN: slab-out-of-bounds in _copy_to_user+0x3c/0x70
[   30.640015] Read of size 121 at addr ffff888102337100 by task kunit_try_catch/314
[   30.640285] 
[   30.640756] CPU: 0 UID: 0 PID: 314 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc2-next-20250620 #1 PREEMPT(voluntary) 
[   30.640895] Tainted: [B]=BAD_PAGE, [N]=TEST
[   30.640928] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   30.640978] Call Trace:
[   30.641022]  <TASK>
[   30.641069]  dump_stack_lvl+0x73/0xb0
[   30.641150]  print_report+0xd1/0x650
[   30.641199]  ? __virt_addr_valid+0x1db/0x2d0
[   30.641249]  ? _copy_to_user+0x3c/0x70
[   30.641291]  ? kasan_complete_mode_report_info+0x2a/0x200
[   30.641348]  ? _copy_to_user+0x3c/0x70
[   30.641393]  kasan_report+0x141/0x180
[   30.641453]  ? _copy_to_user+0x3c/0x70
[   30.641502]  kasan_check_range+0x10c/0x1c0
[   30.641581]  __kasan_check_read+0x15/0x20
[   30.641661]  _copy_to_user+0x3c/0x70
[   30.641714]  copy_user_test_oob+0x364/0x10f0
[   30.641780]  ? __pfx_copy_user_test_oob+0x10/0x10
[   30.641828]  ? finish_task_switch.isra.0+0x153/0x700
[   30.641859]  ? __switch_to+0x47/0xf50
[   30.641891]  ? __schedule+0x10cc/0x2b60
[   30.641919]  ? __pfx_read_tsc+0x10/0x10
[   30.641944]  ? ktime_get_ts64+0x86/0x230
[   30.641976]  kunit_try_run_case+0x1a5/0x480
[   30.642004]  ? __pfx_kunit_try_run_case+0x10/0x10
[   30.642040]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   30.642070]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   30.642097]  ? __kthread_parkme+0x82/0x180
[   30.642123]  ? preempt_count_sub+0x50/0x80
[   30.642172]  ? __pfx_kunit_try_run_case+0x10/0x10
[   30.642210]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   30.642239]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   30.642268]  kthread+0x337/0x6f0
[   30.642291]  ? trace_preempt_on+0x20/0xc0
[   30.642320]  ? __pfx_kthread+0x10/0x10
[   30.642345]  ? _raw_spin_unlock_irq+0x47/0x80
[   30.642369]  ? calculate_sigpending+0x7b/0xa0
[   30.642398]  ? __pfx_kthread+0x10/0x10
[   30.642423]  ret_from_fork+0x116/0x1d0
[   30.642463]  ? __pfx_kthread+0x10/0x10
[   30.642491]  ret_from_fork_asm+0x1a/0x30
[   30.642526]  </TASK>
[   30.642542] 
[   30.654466] Allocated by task 314:
[   30.654853]  kasan_save_stack+0x45/0x70
[   30.655159]  kasan_save_track+0x18/0x40
[   30.655685]  kasan_save_alloc_info+0x3b/0x50
[   30.656100]  __kasan_kmalloc+0xb7/0xc0
[   30.656287]  __kmalloc_noprof+0x1c9/0x500
[   30.656648]  kunit_kmalloc_array+0x25/0x60
[   30.657015]  copy_user_test_oob+0xab/0x10f0
[   30.657379]  kunit_try_run_case+0x1a5/0x480
[   30.658116]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   30.658405]  kthread+0x337/0x6f0
[   30.658727]  ret_from_fork+0x116/0x1d0
[   30.659279]  ret_from_fork_asm+0x1a/0x30
[   30.659648] 
[   30.659822] The buggy address belongs to the object at ffff888102337100
[   30.659822]  which belongs to the cache kmalloc-128 of size 128
[   30.660686] The buggy address is located 0 bytes inside of
[   30.660686]  allocated 120-byte region [ffff888102337100, ffff888102337178)
[   30.661460] 
[   30.661643] The buggy address belongs to the physical page:
[   30.662065] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102337
[   30.662623] flags: 0x200000000000000(node=0|zone=2)
[   30.662852] page_type: f5(slab)
[   30.663144] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000
[   30.663625] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   30.664167] page dumped because: kasan: bad access detected
[   30.664492] 
[   30.664665] Memory state around the buggy address:
[   30.664934]  ffff888102337000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   30.665343]  ffff888102337080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   30.665847] >ffff888102337100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   30.666499]                                                                 ^
[   30.667124]  ffff888102337180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   30.667708]  ffff888102337200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   30.667867] ==================================================================