[   29.394488] ==================================================================
[   29.395029] BUG: KASAN: slab-out-of-bounds in _copy_from_user+0x32/0x90
[   29.395415] Write of size 121 at addr ffff888106258900 by task kunit_try_catch/334
[   29.395774] 
[   29.395882] CPU: 1 UID: 0 PID: 334 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc4-next-20250704 #1 PREEMPT(voluntary) 
[   29.395947] Tainted: [B]=BAD_PAGE, [N]=TEST
[   29.395964] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   29.395993] Call Trace:
[   29.396011]  <TASK>
[   29.396037]  dump_stack_lvl+0x73/0xb0
[   29.396073]  print_report+0xd1/0x650
[   29.396103]  ? __virt_addr_valid+0x1db/0x2d0
[   29.396134]  ? _copy_from_user+0x32/0x90
[   29.396160]  ? kasan_complete_mode_report_info+0x2a/0x200
[   29.396191]  ? _copy_from_user+0x32/0x90
[   29.396216]  kasan_report+0x141/0x180
[   29.396248]  ? _copy_from_user+0x32/0x90
[   29.396278]  kasan_check_range+0x10c/0x1c0
[   29.396306]  __kasan_check_write+0x18/0x20
[   29.396334]  _copy_from_user+0x32/0x90
[   29.396361]  copy_user_test_oob+0x2be/0x10f0
[   29.396402]  ? __pfx_copy_user_test_oob+0x10/0x10
[   29.396430]  ? finish_task_switch.isra.0+0x153/0x700
[   29.396457]  ? __switch_to+0x47/0xf50
[   29.396490]  ? __schedule+0x10cc/0x2b60
[   29.396519]  ? __pfx_read_tsc+0x10/0x10
[   29.396546]  ? ktime_get_ts64+0x86/0x230
[   29.396577]  kunit_try_run_case+0x1a5/0x480
[   29.396606]  ? __pfx_kunit_try_run_case+0x10/0x10
[   29.396634]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   29.396663]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   29.396691]  ? __kthread_parkme+0x82/0x180
[   29.396716]  ? preempt_count_sub+0x50/0x80
[   29.396743]  ? __pfx_kunit_try_run_case+0x10/0x10
[   29.396774]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   29.396803]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   29.396832]  kthread+0x337/0x6f0
[   29.396855]  ? trace_preempt_on+0x20/0xc0
[   29.396902]  ? __pfx_kthread+0x10/0x10
[   29.396927]  ? _raw_spin_unlock_irq+0x47/0x80
[   29.397577]  ? calculate_sigpending+0x7b/0xa0
[   29.397615]  ? __pfx_kthread+0x10/0x10
[   29.397643]  ret_from_fork+0x116/0x1d0
[   29.397669]  ? __pfx_kthread+0x10/0x10
[   29.397694]  ret_from_fork_asm+0x1a/0x30
[   29.397732]  </TASK>
[   29.397749] 
[   29.409343] Allocated by task 334:
[   29.409550]  kasan_save_stack+0x45/0x70
[   29.409786]  kasan_save_track+0x18/0x40
[   29.410112]  kasan_save_alloc_info+0x3b/0x50
[   29.410428]  __kasan_kmalloc+0xb7/0xc0
[   29.410661]  __kmalloc_noprof+0x1c9/0x500
[   29.410857]  kunit_kmalloc_array+0x25/0x60
[   29.411118]  copy_user_test_oob+0xab/0x10f0
[   29.411370]  kunit_try_run_case+0x1a5/0x480
[   29.411622]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   29.411880]  kthread+0x337/0x6f0
[   29.412047]  ret_from_fork+0x116/0x1d0
[   29.412350]  ret_from_fork_asm+0x1a/0x30
[   29.412521] 
[   29.412602] The buggy address belongs to the object at ffff888106258900
[   29.412602]  which belongs to the cache kmalloc-128 of size 128
[   29.413216] The buggy address is located 0 bytes inside of
[   29.413216]  allocated 120-byte region [ffff888106258900, ffff888106258978)
[   29.414120] 
[   29.414270] The buggy address belongs to the physical page:
[   29.414827] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106258
[   29.415137] flags: 0x200000000000000(node=0|zone=2)
[   29.415541] page_type: f5(slab)
[   29.415724] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000
[   29.416293] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   29.416665] page dumped because: kasan: bad access detected
[   29.416924] 
[   29.417027] Memory state around the buggy address:
[   29.417355]  ffff888106258800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   29.417706]  ffff888106258880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   29.418057] >ffff888106258900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   29.418450]                                                                 ^
[   29.418675]  ffff888106258980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   29.419242]  ffff888106258a00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   29.419665] ==================================================================