[   29.591634] ==================================================================
[   29.591962] BUG: KASAN: slab-out-of-bounds in _copy_to_user+0x3c/0x70
[   29.592368] Read of size 121 at addr ffff888104588600 by task kunit_try_catch/334
[   29.592932] 
[   29.593017] CPU: 1 UID: 0 PID: 334 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc6-next-20250717 #1 PREEMPT(voluntary) 
[   29.593065] Tainted: [B]=BAD_PAGE, [N]=TEST
[   29.593091] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   29.593113] Call Trace:
[   29.593127]  <TASK>
[   29.593143]  dump_stack_lvl+0x73/0xb0
[   29.593173]  print_report+0xd1/0x610
[   29.593196]  ? __virt_addr_valid+0x1db/0x2d0
[   29.593220]  ? _copy_to_user+0x3c/0x70
[   29.593243]  ? kasan_complete_mode_report_info+0x2a/0x200
[   29.593270]  ? _copy_to_user+0x3c/0x70
[   29.593671]  kasan_report+0x141/0x180
[   29.593697]  ? _copy_to_user+0x3c/0x70
[   29.593726]  kasan_check_range+0x10c/0x1c0
[   29.593750]  __kasan_check_read+0x15/0x20
[   29.593775]  _copy_to_user+0x3c/0x70
[   29.593799]  copy_user_test_oob+0x364/0x10f0
[   29.593825]  ? __pfx_copy_user_test_oob+0x10/0x10
[   29.593848]  ? finish_task_switch.isra.0+0x153/0x700
[   29.593870]  ? __switch_to+0x47/0xf80
[   29.593896]  ? __schedule+0x10c6/0x2b60
[   29.593920]  ? __pfx_read_tsc+0x10/0x10
[   29.593949]  ? ktime_get_ts64+0x86/0x230
[   29.593973]  kunit_try_run_case+0x1a5/0x480
[   29.593997]  ? __pfx_kunit_try_run_case+0x10/0x10
[   29.594019]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   29.594042]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   29.594066]  ? __kthread_parkme+0x82/0x180
[   29.594101]  ? preempt_count_sub+0x50/0x80
[   29.594124]  ? __pfx_kunit_try_run_case+0x10/0x10
[   29.594148]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   29.594171]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   29.594195]  kthread+0x337/0x6f0
[   29.594214]  ? trace_preempt_on+0x20/0xc0
[   29.594237]  ? __pfx_kthread+0x10/0x10
[   29.594257]  ? _raw_spin_unlock_irq+0x47/0x80
[   29.594290]  ? calculate_sigpending+0x7b/0xa0
[   29.594314]  ? __pfx_kthread+0x10/0x10
[   29.594336]  ret_from_fork+0x116/0x1d0
[   29.594355]  ? __pfx_kthread+0x10/0x10
[   29.594375]  ret_from_fork_asm+0x1a/0x30
[   29.594407]  </TASK>
[   29.594418] 
[   29.604249] Allocated by task 334:
[   29.604580]  kasan_save_stack+0x45/0x70
[   29.604735]  kasan_save_track+0x18/0x40
[   29.605033]  kasan_save_alloc_info+0x3b/0x50
[   29.605408]  __kasan_kmalloc+0xb7/0xc0
[   29.605722]  __kmalloc_noprof+0x1ca/0x510
[   29.605929]  kunit_kmalloc_array+0x25/0x60
[   29.606207]  copy_user_test_oob+0xab/0x10f0
[   29.606415]  kunit_try_run_case+0x1a5/0x480
[   29.606742]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   29.607009]  kthread+0x337/0x6f0
[   29.607179]  ret_from_fork+0x116/0x1d0
[   29.607583]  ret_from_fork_asm+0x1a/0x30
[   29.607855] 
[   29.607960] The buggy address belongs to the object at ffff888104588600
[   29.607960]  which belongs to the cache kmalloc-128 of size 128
[   29.608714] The buggy address is located 0 bytes inside of
[   29.608714]  allocated 120-byte region [ffff888104588600, ffff888104588678)
[   29.609182] 
[   29.609276] The buggy address belongs to the physical page:
[   29.609576] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x104588
[   29.610203] flags: 0x200000000000000(node=0|zone=2)
[   29.610571] page_type: f5(slab)
[   29.610700] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000
[   29.611172] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   29.611633] page dumped because: kasan: bad access detected
[   29.611954] 
[   29.612035] Memory state around the buggy address:
[   29.612238]  ffff888104588500: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   29.612880]  ffff888104588580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   29.613201] >ffff888104588600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   29.613617]                                                                 ^
[   29.613928]  ffff888104588680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   29.614433]  ffff888104588700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   29.614822] ==================================================================