[   29.423807] ==================================================================
[   29.424460] BUG: KASAN: slab-out-of-bounds in _copy_to_user+0x3c/0x70
[   29.424722] Read of size 121 at addr ffff888106258900 by task kunit_try_catch/334
[   29.425104] 
[   29.425277] CPU: 1 UID: 0 PID: 334 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc4-next-20250704 #1 PREEMPT(voluntary) 
[   29.425335] Tainted: [B]=BAD_PAGE, [N]=TEST
[   29.425352] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   29.425379] Call Trace:
[   29.425407]  <TASK>
[   29.425429]  dump_stack_lvl+0x73/0xb0
[   29.425461]  print_report+0xd1/0x650
[   29.425487]  ? __virt_addr_valid+0x1db/0x2d0
[   29.425517]  ? _copy_to_user+0x3c/0x70
[   29.425553]  ? kasan_complete_mode_report_info+0x2a/0x200
[   29.425584]  ? _copy_to_user+0x3c/0x70
[   29.425620]  kasan_report+0x141/0x180
[   29.425646]  ? _copy_to_user+0x3c/0x70
[   29.425675]  kasan_check_range+0x10c/0x1c0
[   29.425702]  __kasan_check_read+0x15/0x20
[   29.425729]  _copy_to_user+0x3c/0x70
[   29.425754]  copy_user_test_oob+0x364/0x10f0
[   29.425783]  ? __pfx_copy_user_test_oob+0x10/0x10
[   29.425810]  ? finish_task_switch.isra.0+0x153/0x700
[   29.425836]  ? __switch_to+0x47/0xf50
[   29.425888]  ? __schedule+0x10cc/0x2b60
[   29.425920]  ? __pfx_read_tsc+0x10/0x10
[   29.425949]  ? ktime_get_ts64+0x86/0x230
[   29.425989]  kunit_try_run_case+0x1a5/0x480
[   29.426018]  ? __pfx_kunit_try_run_case+0x10/0x10
[   29.426047]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   29.426075]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   29.426114]  ? __kthread_parkme+0x82/0x180
[   29.426139]  ? preempt_count_sub+0x50/0x80
[   29.426176]  ? __pfx_kunit_try_run_case+0x10/0x10
[   29.426206]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   29.426235]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   29.426263]  kthread+0x337/0x6f0
[   29.426287]  ? trace_preempt_on+0x20/0xc0
[   29.426314]  ? __pfx_kthread+0x10/0x10
[   29.426340]  ? _raw_spin_unlock_irq+0x47/0x80
[   29.426367]  ? calculate_sigpending+0x7b/0xa0
[   29.426403]  ? __pfx_kthread+0x10/0x10
[   29.426428]  ret_from_fork+0x116/0x1d0
[   29.426451]  ? __pfx_kthread+0x10/0x10
[   29.426476]  ret_from_fork_asm+0x1a/0x30
[   29.426511]  </TASK>
[   29.426526] 
[   29.443271] Allocated by task 334:
[   29.443749]  kasan_save_stack+0x45/0x70
[   29.444297]  kasan_save_track+0x18/0x40
[   29.444735]  kasan_save_alloc_info+0x3b/0x50
[   29.445058]  __kasan_kmalloc+0xb7/0xc0
[   29.445432]  __kmalloc_noprof+0x1c9/0x500
[   29.445863]  kunit_kmalloc_array+0x25/0x60
[   29.446440]  copy_user_test_oob+0xab/0x10f0
[   29.446927]  kunit_try_run_case+0x1a5/0x480
[   29.447092]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   29.447628]  kthread+0x337/0x6f0
[   29.448044]  ret_from_fork+0x116/0x1d0
[   29.448426]  ret_from_fork_asm+0x1a/0x30
[   29.448740] 
[   29.448819] The buggy address belongs to the object at ffff888106258900
[   29.448819]  which belongs to the cache kmalloc-128 of size 128
[   29.449724] The buggy address is located 0 bytes inside of
[   29.449724]  allocated 120-byte region [ffff888106258900, ffff888106258978)
[   29.451338] 
[   29.451558] The buggy address belongs to the physical page:
[   29.451958] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106258
[   29.452748] flags: 0x200000000000000(node=0|zone=2)
[   29.453052] page_type: f5(slab)
[   29.453502] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000
[   29.454000] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   29.454768] page dumped because: kasan: bad access detected
[   29.455070] 
[   29.455270] Memory state around the buggy address:
[   29.455987]  ffff888106258800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   29.456610]  ffff888106258880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   29.456852] >ffff888106258900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   29.457083]                                                                 ^
[   29.457374]  ffff888106258980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   29.457722]  ffff888106258a00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   29.458134] ==================================================================