[   15.488514] ==================================================================
[   15.488832] BUG: KASAN: slab-out-of-bounds in _copy_to_user+0x3c/0x70
[   15.489117] Read of size 121 at addr ffff8881028df100 by task kunit_try_catch/311
[   15.489410] 
[   15.489568] CPU: 1 UID: 0 PID: 311 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc2-next-20250616 #1 PREEMPT(voluntary) 
[   15.489616] Tainted: [B]=BAD_PAGE, [N]=TEST
[   15.489630] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   15.489652] Call Trace:
[   15.489671]  <TASK>
[   15.489697]  dump_stack_lvl+0x73/0xb0
[   15.489726]  print_report+0xd1/0x650
[   15.489750]  ? __virt_addr_valid+0x1db/0x2d0
[   15.489773]  ? _copy_to_user+0x3c/0x70
[   15.489793]  ? kasan_complete_mode_report_info+0x2a/0x200
[   15.489815]  ? _copy_to_user+0x3c/0x70
[   15.489835]  kasan_report+0x141/0x180
[   15.489857]  ? _copy_to_user+0x3c/0x70
[   15.489881]  kasan_check_range+0x10c/0x1c0
[   15.489906]  __kasan_check_read+0x15/0x20
[   15.489926]  _copy_to_user+0x3c/0x70
[   15.489956]  copy_user_test_oob+0x364/0x10f0
[   15.489982]  ? __pfx_copy_user_test_oob+0x10/0x10
[   15.490005]  ? finish_task_switch.isra.0+0x153/0x700
[   15.490028]  ? __switch_to+0x47/0xf50
[   15.490055]  ? __schedule+0x10cc/0x2b60
[   15.490077]  ? __pfx_read_tsc+0x10/0x10
[   15.490098]  ? ktime_get_ts64+0x86/0x230
[   15.490124]  kunit_try_run_case+0x1a5/0x480
[   15.490148]  ? __pfx_kunit_try_run_case+0x10/0x10
[   15.490169]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   15.490193]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   15.490215]  ? __kthread_parkme+0x82/0x180
[   15.490235]  ? preempt_count_sub+0x50/0x80
[   15.490259]  ? __pfx_kunit_try_run_case+0x10/0x10
[   15.490283]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   15.490306]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   15.490330]  kthread+0x337/0x6f0
[   15.490350]  ? trace_preempt_on+0x20/0xc0
[   15.490374]  ? __pfx_kthread+0x10/0x10
[   15.490408]  ? _raw_spin_unlock_irq+0x47/0x80
[   15.490429]  ? calculate_sigpending+0x7b/0xa0
[   15.490454]  ? __pfx_kthread+0x10/0x10
[   15.490475]  ret_from_fork+0x116/0x1d0
[   15.490494]  ? __pfx_kthread+0x10/0x10
[   15.490514]  ret_from_fork_asm+0x1a/0x30
[   15.490546]  </TASK>
[   15.490557] 
[   15.500080] Allocated by task 311:
[   15.500215]  kasan_save_stack+0x45/0x70
[   15.500445]  kasan_save_track+0x18/0x40
[   15.500634]  kasan_save_alloc_info+0x3b/0x50
[   15.500840]  __kasan_kmalloc+0xb7/0xc0
[   15.501009]  __kmalloc_noprof+0x1c9/0x500
[   15.501175]  kunit_kmalloc_array+0x25/0x60
[   15.501312]  copy_user_test_oob+0xab/0x10f0
[   15.501657]  kunit_try_run_case+0x1a5/0x480
[   15.501858]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   15.502092]  kthread+0x337/0x6f0
[   15.502210]  ret_from_fork+0x116/0x1d0
[   15.502336]  ret_from_fork_asm+0x1a/0x30
[   15.502519] 
[   15.502607] The buggy address belongs to the object at ffff8881028df100
[   15.502607]  which belongs to the cache kmalloc-128 of size 128
[   15.503109] The buggy address is located 0 bytes inside of
[   15.503109]  allocated 120-byte region [ffff8881028df100, ffff8881028df178)
[   15.503809] 
[   15.503896] The buggy address belongs to the physical page:
[   15.504127] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1028df
[   15.504468] flags: 0x200000000000000(node=0|zone=2)
[   15.504637] page_type: f5(slab)
[   15.504804] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000
[   15.505120] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   15.505385] page dumped because: kasan: bad access detected
[   15.505637] 
[   15.505708] Memory state around the buggy address:
[   15.506011]  ffff8881028df000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   15.506267]  ffff8881028df080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   15.506523] >ffff8881028df100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   15.506906]                                                                 ^
[   15.507230]  ffff8881028df180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   15.507543]  ffff8881028df200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   15.507818] ==================================================================