[   26.156415] ==================================================================
[   26.156865] BUG: KASAN: slab-out-of-bounds in _copy_from_user+0x32/0x90
[   26.157351] Write of size 121 at addr ffff888102c14900 by task kunit_try_catch/314
[   26.157763] 
[   26.158014] CPU: 1 UID: 0 PID: 314 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc3-next-20250623 #1 PREEMPT(voluntary) 
[   26.158122] Tainted: [B]=BAD_PAGE, [N]=TEST
[   26.158149] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   26.158188] Call Trace:
[   26.158217]  <TASK>
[   26.158254]  dump_stack_lvl+0x73/0xb0
[   26.158312]  print_report+0xd1/0x650
[   26.158357]  ? __virt_addr_valid+0x1db/0x2d0
[   26.158423]  ? _copy_from_user+0x32/0x90
[   26.158467]  ? kasan_complete_mode_report_info+0x2a/0x200
[   26.158506]  ? _copy_from_user+0x32/0x90
[   26.158526]  kasan_report+0x141/0x180
[   26.158549]  ? _copy_from_user+0x32/0x90
[   26.158572]  kasan_check_range+0x10c/0x1c0
[   26.158595]  __kasan_check_write+0x18/0x20
[   26.158616]  _copy_from_user+0x32/0x90
[   26.158640]  copy_user_test_oob+0x2be/0x10f0
[   26.158678]  ? __pfx_copy_user_test_oob+0x10/0x10
[   26.158713]  ? finish_task_switch.isra.0+0x153/0x700
[   26.158748]  ? __switch_to+0x47/0xf50
[   26.158798]  ? __schedule+0x10cc/0x2b60
[   26.159011]  ? __pfx_read_tsc+0x10/0x10
[   26.159090]  ? ktime_get_ts64+0x86/0x230
[   26.159146]  kunit_try_run_case+0x1a5/0x480
[   26.159194]  ? __pfx_kunit_try_run_case+0x10/0x10
[   26.159237]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   26.159285]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   26.159323]  ? __kthread_parkme+0x82/0x180
[   26.159356]  ? preempt_count_sub+0x50/0x80
[   26.159560]  ? __pfx_kunit_try_run_case+0x10/0x10
[   26.159588]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   26.159611]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   26.159632]  kthread+0x337/0x6f0
[   26.159649]  ? trace_preempt_on+0x20/0xc0
[   26.159671]  ? __pfx_kthread+0x10/0x10
[   26.159689]  ? _raw_spin_unlock_irq+0x47/0x80
[   26.159708]  ? calculate_sigpending+0x7b/0xa0
[   26.159729]  ? __pfx_kthread+0x10/0x10
[   26.159748]  ret_from_fork+0x116/0x1d0
[   26.159764]  ? __pfx_kthread+0x10/0x10
[   26.159782]  ret_from_fork_asm+0x1a/0x30
[   26.159810]  </TASK>
[   26.159824] 
[   26.171990] Allocated by task 314:
[   26.172225]  kasan_save_stack+0x45/0x70
[   26.172537]  kasan_save_track+0x18/0x40
[   26.172715]  kasan_save_alloc_info+0x3b/0x50
[   26.173094]  __kasan_kmalloc+0xb7/0xc0
[   26.173601]  __kmalloc_noprof+0x1c9/0x500
[   26.173932]  kunit_kmalloc_array+0x25/0x60
[   26.174348]  copy_user_test_oob+0xab/0x10f0
[   26.174767]  kunit_try_run_case+0x1a5/0x480
[   26.175065]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   26.175322]  kthread+0x337/0x6f0
[   26.175677]  ret_from_fork+0x116/0x1d0
[   26.176333]  ret_from_fork_asm+0x1a/0x30
[   26.176701] 
[   26.176997] The buggy address belongs to the object at ffff888102c14900
[   26.176997]  which belongs to the cache kmalloc-128 of size 128
[   26.177658] The buggy address is located 0 bytes inside of
[   26.177658]  allocated 120-byte region [ffff888102c14900, ffff888102c14978)
[   26.178657] 
[   26.178872] The buggy address belongs to the physical page:
[   26.179353] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102c14
[   26.180173] flags: 0x200000000000000(node=0|zone=2)
[   26.180669] page_type: f5(slab)
[   26.181027] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000
[   26.181583] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   26.182049] page dumped because: kasan: bad access detected
[   26.182494] 
[   26.182686] Memory state around the buggy address:
[   26.183066]  ffff888102c14800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   26.183538]  ffff888102c14880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   26.184050] >ffff888102c14900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   26.184494]                                                                 ^
[   26.184954]  ffff888102c14980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   26.185175]  ffff888102c14a00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   26.185692] ==================================================================