[   28.574189] ==================================================================
[   28.574852] BUG: KASAN: slab-out-of-bounds in _copy_from_user+0x32/0x90
[   28.575483] Write of size 121 at addr ffff8881053b7a00 by task kunit_try_catch/333
[   28.576164] 
[   28.576310] CPU: 0 UID: 0 PID: 333 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc6-next-20250718 #1 PREEMPT(voluntary) 
[   28.576406] Tainted: [B]=BAD_PAGE, [N]=TEST
[   28.576420] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   28.576445] Call Trace:
[   28.576604]  <TASK>
[   28.576632]  dump_stack_lvl+0x73/0xb0
[   28.576672]  print_report+0xd1/0x640
[   28.576700]  ? __virt_addr_valid+0x1db/0x2d0
[   28.576727]  ? _copy_from_user+0x32/0x90
[   28.576752]  ? kasan_complete_mode_report_info+0x2a/0x200
[   28.576805]  ? _copy_from_user+0x32/0x90
[   28.576842]  kasan_report+0x141/0x180
[   28.576866]  ? _copy_from_user+0x32/0x90
[   28.576894]  kasan_check_range+0x10c/0x1c0
[   28.576918]  __kasan_check_write+0x18/0x20
[   28.576942]  _copy_from_user+0x32/0x90
[   28.576967]  copy_user_test_oob+0x2be/0x10f0
[   28.576994]  ? __pfx_copy_user_test_oob+0x10/0x10
[   28.577017]  ? finish_task_switch.isra.0+0x153/0x700
[   28.577040]  ? __switch_to+0x47/0xf80
[   28.577068]  ? __schedule+0x10da/0x2b60
[   28.577094]  ? __pfx_read_tsc+0x10/0x10
[   28.577116]  ? ktime_get_ts64+0x86/0x230
[   28.577143]  kunit_try_run_case+0x1a5/0x480
[   28.577167]  ? __pfx_kunit_try_run_case+0x10/0x10
[   28.577189]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   28.577224]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   28.577258]  ? __kthread_parkme+0x82/0x180
[   28.577280]  ? preempt_count_sub+0x50/0x80
[   28.577302]  ? __pfx_kunit_try_run_case+0x10/0x10
[   28.577326]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   28.577360]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   28.577384]  kthread+0x337/0x6f0
[   28.577404]  ? trace_preempt_on+0x20/0xc0
[   28.577428]  ? __pfx_kthread+0x10/0x10
[   28.577450]  ? _raw_spin_unlock_irq+0x47/0x80
[   28.577481]  ? calculate_sigpending+0x7b/0xa0
[   28.577506]  ? __pfx_kthread+0x10/0x10
[   28.577528]  ret_from_fork+0x116/0x1d0
[   28.577548]  ? __pfx_kthread+0x10/0x10
[   28.577569]  ret_from_fork_asm+0x1a/0x30
[   28.577600]  </TASK>
[   28.577614] 
[   28.588282] Allocated by task 333:
[   28.588484]  kasan_save_stack+0x45/0x70
[   28.589016]  kasan_save_track+0x18/0x40
[   28.589372]  kasan_save_alloc_info+0x3b/0x50
[   28.589665]  __kasan_kmalloc+0xb7/0xc0
[   28.589877]  __kmalloc_noprof+0x1ca/0x510
[   28.590101]  kunit_kmalloc_array+0x25/0x60
[   28.590470]  copy_user_test_oob+0xab/0x10f0
[   28.590744]  kunit_try_run_case+0x1a5/0x480
[   28.590938]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   28.591491]  kthread+0x337/0x6f0
[   28.591642]  ret_from_fork+0x116/0x1d0
[   28.591986]  ret_from_fork_asm+0x1a/0x30
[   28.592235] 
[   28.592350] The buggy address belongs to the object at ffff8881053b7a00
[   28.592350]  which belongs to the cache kmalloc-128 of size 128
[   28.592855] The buggy address is located 0 bytes inside of
[   28.592855]  allocated 120-byte region [ffff8881053b7a00, ffff8881053b7a78)
[   28.593706] 
[   28.593788] The buggy address belongs to the physical page:
[   28.594022] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1053b7
[   28.594559] flags: 0x200000000000000(node=0|zone=2)
[   28.594882] page_type: f5(slab)
[   28.595139] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000
[   28.595538] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   28.595975] page dumped because: kasan: bad access detected
[   28.596149] 
[   28.596353] Memory state around the buggy address:
[   28.596536]  ffff8881053b7900: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   28.596862]  ffff8881053b7980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   28.597477] >ffff8881053b7a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   28.597718]                                                                 ^
[   28.598251]  ffff8881053b7a80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   28.598728]  ffff8881053b7b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   28.599484] ==================================================================