[   35.010295] ==================================================================
[   35.011141] BUG: KASAN: slab-out-of-bounds in _copy_from_user+0x32/0x90
[   35.011991] Write of size 121 at addr ffff888102df6500 by task kunit_try_catch/315
[   35.012574] 
[   35.012942] CPU: 0 UID: 0 PID: 315 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc3-next-20250624 #1 PREEMPT(voluntary) 
[   35.013068] Tainted: [B]=BAD_PAGE, [N]=TEST
[   35.013105] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   35.013161] Call Trace:
[   35.013199]  <TASK>
[   35.013242]  dump_stack_lvl+0x73/0xb0
[   35.013327]  print_report+0xd1/0x650
[   35.013393]  ? __virt_addr_valid+0x1db/0x2d0
[   35.013463]  ? _copy_from_user+0x32/0x90
[   35.013513]  ? kasan_complete_mode_report_info+0x2a/0x200
[   35.013632]  ? _copy_from_user+0x32/0x90
[   35.013711]  kasan_report+0x141/0x180
[   35.013789]  ? _copy_from_user+0x32/0x90
[   35.013855]  kasan_check_range+0x10c/0x1c0
[   35.013917]  __kasan_check_write+0x18/0x20
[   35.013987]  _copy_from_user+0x32/0x90
[   35.014051]  copy_user_test_oob+0x2be/0x10f0
[   35.014124]  ? __pfx_copy_user_test_oob+0x10/0x10
[   35.014177]  ? finish_task_switch.isra.0+0x153/0x700
[   35.014215]  ? __switch_to+0x47/0xf50
[   35.014253]  ? __schedule+0x10cc/0x2b60
[   35.014301]  ? __pfx_read_tsc+0x10/0x10
[   35.014337]  ? ktime_get_ts64+0x86/0x230
[   35.014374]  kunit_try_run_case+0x1a5/0x480
[   35.014408]  ? __pfx_kunit_try_run_case+0x10/0x10
[   35.014441]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   35.014475]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   35.014508]  ? __kthread_parkme+0x82/0x180
[   35.014558]  ? preempt_count_sub+0x50/0x80
[   35.014592]  ? __pfx_kunit_try_run_case+0x10/0x10
[   35.014631]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   35.014676]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   35.014710]  kthread+0x337/0x6f0
[   35.014737]  ? trace_preempt_on+0x20/0xc0
[   35.014773]  ? __pfx_kthread+0x10/0x10
[   35.014802]  ? _raw_spin_unlock_irq+0x47/0x80
[   35.014833]  ? calculate_sigpending+0x7b/0xa0
[   35.014867]  ? __pfx_kthread+0x10/0x10
[   35.014896]  ret_from_fork+0x116/0x1d0
[   35.014923]  ? __pfx_kthread+0x10/0x10
[   35.014951]  ret_from_fork_asm+0x1a/0x30
[   35.014994]  </TASK>
[   35.015011] 
[   35.029195] Allocated by task 315:
[   35.029677]  kasan_save_stack+0x45/0x70
[   35.030096]  kasan_save_track+0x18/0x40
[   35.030558]  kasan_save_alloc_info+0x3b/0x50
[   35.030987]  __kasan_kmalloc+0xb7/0xc0
[   35.031466]  __kmalloc_noprof+0x1c9/0x500
[   35.032352]  kunit_kmalloc_array+0x25/0x60
[   35.032831]  copy_user_test_oob+0xab/0x10f0
[   35.033123]  kunit_try_run_case+0x1a5/0x480
[   35.033595]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   35.034270]  kthread+0x337/0x6f0
[   35.034648]  ret_from_fork+0x116/0x1d0
[   35.035077]  ret_from_fork_asm+0x1a/0x30
[   35.035783] 
[   35.036043] The buggy address belongs to the object at ffff888102df6500
[   35.036043]  which belongs to the cache kmalloc-128 of size 128
[   35.036908] The buggy address is located 0 bytes inside of
[   35.036908]  allocated 120-byte region [ffff888102df6500, ffff888102df6578)
[   35.038030] 
[   35.038176] The buggy address belongs to the physical page:
[   35.038671] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102df6
[   35.039221] flags: 0x200000000000000(node=0|zone=2)
[   35.039827] page_type: f5(slab)
[   35.040254] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000
[   35.040791] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   35.041417] page dumped because: kasan: bad access detected
[   35.041818] 
[   35.042085] Memory state around the buggy address:
[   35.042455]  ffff888102df6400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   35.043171]  ffff888102df6480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   35.043717] >ffff888102df6500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   35.044127]                                                                 ^
[   35.044874]  ffff888102df6580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   35.045449]  ffff888102df6600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   35.045918] ==================================================================