[   18.390697] ==================================================================
[   18.391048] BUG: KASAN: slab-out-of-bounds in _copy_to_user+0x4a/0x70
[   18.391336] Read of size 121 at addr ffff8881039f5200 by task kunit_try_catch/305
[   18.391614] 
[   18.391739] CPU: 1 UID: 0 PID: 305 Comm: kunit_try_catch Tainted: G    B            N  6.15.2-rc1 #1 PREEMPT(voluntary) 
[   18.391818] Tainted: [B]=BAD_PAGE, [N]=TEST
[   18.391835] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   18.391860] Call Trace:
[   18.391884]  <TASK>
[   18.391905]  dump_stack_lvl+0x73/0xb0
[   18.391936]  print_report+0xd1/0x650
[   18.391962]  ? __virt_addr_valid+0x1db/0x2d0
[   18.391986]  ? _copy_to_user+0x4a/0x70
[   18.392005]  ? kasan_complete_mode_report_info+0x2a/0x200
[   18.392029]  ? _copy_to_user+0x4a/0x70
[   18.392049]  kasan_report+0x141/0x180
[   18.392071]  ? _copy_to_user+0x4a/0x70
[   18.392095]  kasan_check_range+0x10c/0x1c0
[   18.392115]  __kasan_check_read+0x15/0x20
[   18.392136]  _copy_to_user+0x4a/0x70
[   18.392155]  copy_user_test_oob+0x364/0x10f0
[   18.392178]  ? __pfx_copy_user_test_oob+0x10/0x10
[   18.392198]  ? finish_task_switch.isra.0+0x153/0x700
[   18.392222]  ? __switch_to+0x5d9/0xf60
[   18.392244]  ? dequeue_task_fair+0x166/0x4e0
[   18.392269]  ? __schedule+0x10cc/0x2b30
[   18.392292]  ? __pfx_read_tsc+0x10/0x10
[   18.392313]  ? ktime_get_ts64+0x86/0x230
[   18.392339]  kunit_try_run_case+0x1a5/0x480
[   18.392363]  ? __pfx_kunit_try_run_case+0x10/0x10
[   18.392385]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   18.392409]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   18.392432]  ? __kthread_parkme+0x82/0x180
[   18.392455]  ? preempt_count_sub+0x50/0x80
[   18.392480]  ? __pfx_kunit_try_run_case+0x10/0x10
[   18.392504]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   18.392528]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   18.392551]  kthread+0x337/0x6f0
[   18.392583]  ? trace_preempt_on+0x20/0xc0
[   18.392609]  ? __pfx_kthread+0x10/0x10
[   18.392629]  ? _raw_spin_unlock_irq+0x47/0x80
[   18.392651]  ? calculate_sigpending+0x7b/0xa0
[   18.392673]  ? __pfx_kthread+0x10/0x10
[   18.392693]  ret_from_fork+0x41/0x80
[   18.392714]  ? __pfx_kthread+0x10/0x10
[   18.392733]  ret_from_fork_asm+0x1a/0x30
[   18.392764]  </TASK>
[   18.392778] 
[   18.398542] Allocated by task 305:
[   18.398779]  kasan_save_stack+0x45/0x70
[   18.398922]  kasan_save_track+0x18/0x40
[   18.399103]  kasan_save_alloc_info+0x3b/0x50
[   18.399285]  __kasan_kmalloc+0xb7/0xc0
[   18.399461]  __kmalloc_noprof+0x1c9/0x500
[   18.399648]  kunit_kmalloc_array+0x25/0x60
[   18.399787]  copy_user_test_oob+0xab/0x10f0
[   18.399974]  kunit_try_run_case+0x1a5/0x480
[   18.400111]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   18.400302]  kthread+0x337/0x6f0
[   18.400467]  ret_from_fork+0x41/0x80
[   18.400614]  ret_from_fork_asm+0x1a/0x30
[   18.400885] 
[   18.401000] The buggy address belongs to the object at ffff8881039f5200
[   18.401000]  which belongs to the cache kmalloc-128 of size 128
[   18.401221] The buggy address is located 0 bytes inside of
[   18.401221]  allocated 120-byte region [ffff8881039f5200, ffff8881039f5278)
[   18.401524] 
[   18.401662] The buggy address belongs to the physical page:
[   18.402012] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1039f5
[   18.402305] flags: 0x200000000000000(node=0|zone=2)
[   18.402515] page_type: f5(slab)
[   18.402677] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000
[   18.402879] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   18.403021] page dumped because: kasan: bad access detected
[   18.403134] 
[   18.403196] Memory state around the buggy address:
[   18.403303]  ffff8881039f5100: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   18.403436]  ffff8881039f5180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   18.403572] >ffff8881039f5200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   18.403703]                                                                 ^
[   18.404138]  ffff8881039f5280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   18.404577]  ffff8881039f5300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   18.405022] ==================================================================