[   15.464702] ==================================================================
[   15.465348] BUG: KASAN: slab-out-of-bounds in _copy_from_user+0x32/0x90
[   15.465754] Write of size 121 at addr ffff8881028df100 by task kunit_try_catch/311
[   15.466412] 
[   15.466639] CPU: 1 UID: 0 PID: 311 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc2-next-20250616 #1 PREEMPT(voluntary) 
[   15.466697] Tainted: [B]=BAD_PAGE, [N]=TEST
[   15.466710] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   15.466734] Call Trace:
[   15.466749]  <TASK>
[   15.466771]  dump_stack_lvl+0x73/0xb0
[   15.466806]  print_report+0xd1/0x650
[   15.466831]  ? __virt_addr_valid+0x1db/0x2d0
[   15.466855]  ? _copy_from_user+0x32/0x90
[   15.466875]  ? kasan_complete_mode_report_info+0x2a/0x200
[   15.466898]  ? _copy_from_user+0x32/0x90
[   15.466918]  kasan_report+0x141/0x180
[   15.466952]  ? _copy_from_user+0x32/0x90
[   15.466976]  kasan_check_range+0x10c/0x1c0
[   15.467000]  __kasan_check_write+0x18/0x20
[   15.467020]  _copy_from_user+0x32/0x90
[   15.467041]  copy_user_test_oob+0x2be/0x10f0
[   15.467069]  ? __pfx_copy_user_test_oob+0x10/0x10
[   15.467092]  ? finish_task_switch.isra.0+0x153/0x700
[   15.467116]  ? __switch_to+0x47/0xf50
[   15.467144]  ? __schedule+0x10cc/0x2b60
[   15.467169]  ? __pfx_read_tsc+0x10/0x10
[   15.467191]  ? ktime_get_ts64+0x86/0x230
[   15.467218]  kunit_try_run_case+0x1a5/0x480
[   15.467242]  ? __pfx_kunit_try_run_case+0x10/0x10
[   15.467264]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   15.467287]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   15.467311]  ? __kthread_parkme+0x82/0x180
[   15.467332]  ? preempt_count_sub+0x50/0x80
[   15.467354]  ? __pfx_kunit_try_run_case+0x10/0x10
[   15.467378]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   15.467404]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   15.467427]  kthread+0x337/0x6f0
[   15.467447]  ? trace_preempt_on+0x20/0xc0
[   15.467472]  ? __pfx_kthread+0x10/0x10
[   15.467493]  ? _raw_spin_unlock_irq+0x47/0x80
[   15.467514]  ? calculate_sigpending+0x7b/0xa0
[   15.467540]  ? __pfx_kthread+0x10/0x10
[   15.467562]  ret_from_fork+0x116/0x1d0
[   15.467580]  ? __pfx_kthread+0x10/0x10
[   15.467601]  ret_from_fork_asm+0x1a/0x30
[   15.467633]  </TASK>
[   15.467647] 
[   15.476563] Allocated by task 311:
[   15.476738]  kasan_save_stack+0x45/0x70
[   15.476937]  kasan_save_track+0x18/0x40
[   15.477069]  kasan_save_alloc_info+0x3b/0x50
[   15.477211]  __kasan_kmalloc+0xb7/0xc0
[   15.477393]  __kmalloc_noprof+0x1c9/0x500
[   15.477600]  kunit_kmalloc_array+0x25/0x60
[   15.477801]  copy_user_test_oob+0xab/0x10f0
[   15.478010]  kunit_try_run_case+0x1a5/0x480
[   15.478184]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   15.478352]  kthread+0x337/0x6f0
[   15.478507]  ret_from_fork+0x116/0x1d0
[   15.478718]  ret_from_fork_asm+0x1a/0x30
[   15.478881] 
[   15.478961] The buggy address belongs to the object at ffff8881028df100
[   15.478961]  which belongs to the cache kmalloc-128 of size 128
[   15.479409] The buggy address is located 0 bytes inside of
[   15.479409]  allocated 120-byte region [ffff8881028df100, ffff8881028df178)
[   15.479994] 
[   15.480066] The buggy address belongs to the physical page:
[   15.480297] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1028df
[   15.480654] flags: 0x200000000000000(node=0|zone=2)
[   15.480895] page_type: f5(slab)
[   15.481107] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000
[   15.481330] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   15.482193] page dumped because: kasan: bad access detected
[   15.482465] 
[   15.482552] Memory state around the buggy address:
[   15.482753]  ffff8881028df000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   15.483058]  ffff8881028df080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   15.483354] >ffff8881028df100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   15.483966]                                                                 ^
[   15.484272]  ffff8881028df180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   15.484743]  ffff8881028df200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   15.485124] ==================================================================