[   25.719221] ==================================================================
[   25.719783] BUG: KASAN: slab-out-of-bounds in _copy_from_user+0x32/0x90
[   25.720093] Write of size 121 at addr ffff888102597c00 by task kunit_try_catch/314
[   25.720834] 
[   25.720979] CPU: 0 UID: 0 PID: 314 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc3-next-20250625 #1 PREEMPT(voluntary) 
[   25.721038] Tainted: [B]=BAD_PAGE, [N]=TEST
[   25.721053] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   25.721080] Call Trace:
[   25.721096]  <TASK>
[   25.721121]  dump_stack_lvl+0x73/0xb0
[   25.721155]  print_report+0xd1/0x650
[   25.721183]  ? __virt_addr_valid+0x1db/0x2d0
[   25.721210]  ? _copy_from_user+0x32/0x90
[   25.721233]  ? kasan_complete_mode_report_info+0x2a/0x200
[   25.721259]  ? _copy_from_user+0x32/0x90
[   25.721279]  kasan_report+0x141/0x180
[   25.721301]  ? _copy_from_user+0x32/0x90
[   25.721326]  kasan_check_range+0x10c/0x1c0
[   25.721349]  __kasan_check_write+0x18/0x20
[   25.721372]  _copy_from_user+0x32/0x90
[   25.721393]  copy_user_test_oob+0x2be/0x10f0
[   25.721419]  ? __pfx_copy_user_test_oob+0x10/0x10
[   25.721442]  ? sysvec_apic_timer_interrupt+0x50/0x90
[   25.721471]  ? __pfx_copy_user_test_oob+0x10/0x10
[   25.721497]  kunit_try_run_case+0x1a5/0x480
[   25.721522]  ? __pfx_kunit_try_run_case+0x10/0x10
[   25.721546]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   25.721568]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   25.721594]  ? __kthread_parkme+0x82/0x180
[   25.721617]  ? preempt_count_sub+0x50/0x80
[   25.721641]  ? __pfx_kunit_try_run_case+0x10/0x10
[   25.721666]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   25.721690]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   25.721715]  kthread+0x337/0x6f0
[   25.721735]  ? trace_preempt_on+0x20/0xc0
[   25.721761]  ? __pfx_kthread+0x10/0x10
[   25.721782]  ? _raw_spin_unlock_irq+0x47/0x80
[   25.721806]  ? calculate_sigpending+0x7b/0xa0
[   25.721831]  ? __pfx_kthread+0x10/0x10
[   25.721853]  ret_from_fork+0x116/0x1d0
[   25.721873]  ? __pfx_kthread+0x10/0x10
[   25.721894]  ret_from_fork_asm+0x1a/0x30
[   25.721925]  </TASK>
[   25.721949] 
[   25.730523] Allocated by task 314:
[   25.730743]  kasan_save_stack+0x45/0x70
[   25.730963]  kasan_save_track+0x18/0x40
[   25.731119]  kasan_save_alloc_info+0x3b/0x50
[   25.731285]  __kasan_kmalloc+0xb7/0xc0
[   25.731467]  __kmalloc_noprof+0x1c9/0x500
[   25.731660]  kunit_kmalloc_array+0x25/0x60
[   25.731852]  copy_user_test_oob+0xab/0x10f0
[   25.732052]  kunit_try_run_case+0x1a5/0x480
[   25.732253]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   25.732533]  kthread+0x337/0x6f0
[   25.732651]  ret_from_fork+0x116/0x1d0
[   25.732777]  ret_from_fork_asm+0x1a/0x30
[   25.732910] 
[   25.733008] The buggy address belongs to the object at ffff888102597c00
[   25.733008]  which belongs to the cache kmalloc-128 of size 128
[   25.733870] The buggy address is located 0 bytes inside of
[   25.733870]  allocated 120-byte region [ffff888102597c00, ffff888102597c78)
[   25.734887] 
[   25.735057] The buggy address belongs to the physical page:
[   25.735707] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102597
[   25.736439] flags: 0x200000000000000(node=0|zone=2)
[   25.736905] page_type: f5(slab)
[   25.737257] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000
[   25.737924] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   25.738536] page dumped because: kasan: bad access detected
[   25.738706] 
[   25.738769] Memory state around the buggy address:
[   25.738926]  ffff888102597b00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   25.739171]  ffff888102597b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   25.739584] >ffff888102597c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   25.739877]                                                                 ^
[   25.740194]  ffff888102597c80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   25.741088]  ffff888102597d00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   25.741385] ==================================================================