[   15.457924] ==================================================================
[   15.458851] BUG: KASAN: slab-out-of-bounds in _copy_to_user+0x4a/0x70
[   15.459843] Read of size 121 at addr ffff888102b49800 by task kunit_try_catch/306
[   15.460309] 
[   15.460760] CPU: 1 UID: 0 PID: 306 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-rc3 #1 PREEMPT(voluntary) 
[   15.460816] Tainted: [B]=BAD_PAGE, [N]=TEST
[   15.461052] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   15.461081] Call Trace:
[   15.461098]  <TASK>
[   15.461116]  dump_stack_lvl+0x73/0xb0
[   15.461148]  print_report+0xd1/0x650
[   15.461215]  ? __virt_addr_valid+0x1db/0x2d0
[   15.461240]  ? _copy_to_user+0x4a/0x70
[   15.461264]  ? kasan_complete_mode_report_info+0x2a/0x200
[   15.461288]  ? _copy_to_user+0x4a/0x70
[   15.461312]  kasan_report+0x141/0x180
[   15.461473]  ? _copy_to_user+0x4a/0x70
[   15.461511]  kasan_check_range+0x10c/0x1c0
[   15.461538]  __kasan_check_read+0x15/0x20
[   15.461560]  _copy_to_user+0x4a/0x70
[   15.461584]  copy_user_test_oob+0x364/0x10f0
[   15.461608]  ? __pfx_copy_user_test_oob+0x10/0x10
[   15.461628]  ? finish_task_switch.isra.0+0x153/0x700
[   15.461652]  ? __switch_to+0x5d9/0xf60
[   15.461673]  ? dequeue_task_fair+0x166/0x4e0
[   15.461701]  ? __schedule+0x10cc/0x2b30
[   15.461728]  ? __pfx_read_tsc+0x10/0x10
[   15.461749]  ? ktime_get_ts64+0x86/0x230
[   15.461782]  kunit_try_run_case+0x1a5/0x480
[   15.461808]  ? __pfx_kunit_try_run_case+0x10/0x10
[   15.461831]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   15.461856]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   15.461881]  ? __kthread_parkme+0x82/0x180
[   15.461904]  ? preempt_count_sub+0x50/0x80
[   15.461930]  ? __pfx_kunit_try_run_case+0x10/0x10
[   15.461954]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   15.461978]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   15.462002]  kthread+0x337/0x6f0
[   15.462023]  ? trace_preempt_on+0x20/0xc0
[   15.462048]  ? __pfx_kthread+0x10/0x10
[   15.462070]  ? _raw_spin_unlock_irq+0x47/0x80
[   15.462094]  ? calculate_sigpending+0x7b/0xa0
[   15.462117]  ? __pfx_kthread+0x10/0x10
[   15.462141]  ret_from_fork+0x41/0x80
[   15.462161]  ? __pfx_kthread+0x10/0x10
[   15.462202]  ret_from_fork_asm+0x1a/0x30
[   15.462234]  </TASK>
[   15.462246] 
[   15.474200] Allocated by task 306:
[   15.474378]  kasan_save_stack+0x45/0x70
[   15.474707]  kasan_save_track+0x18/0x40
[   15.474889]  kasan_save_alloc_info+0x3b/0x50
[   15.475067]  __kasan_kmalloc+0xb7/0xc0
[   15.475618]  __kmalloc_noprof+0x1c9/0x500
[   15.475953]  kunit_kmalloc_array+0x25/0x60
[   15.476571]  copy_user_test_oob+0xab/0x10f0
[   15.476795]  kunit_try_run_case+0x1a5/0x480
[   15.476995]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   15.477617]  kthread+0x337/0x6f0
[   15.477891]  ret_from_fork+0x41/0x80
[   15.478270]  ret_from_fork_asm+0x1a/0x30
[   15.478760] 
[   15.478862] The buggy address belongs to the object at ffff888102b49800
[   15.478862]  which belongs to the cache kmalloc-128 of size 128
[   15.479858] The buggy address is located 0 bytes inside of
[   15.479858]  allocated 120-byte region [ffff888102b49800, ffff888102b49878)
[   15.480753] 
[   15.480864] The buggy address belongs to the physical page:
[   15.481102] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102b49
[   15.481714] flags: 0x200000000000000(node=0|zone=2)
[   15.481955] page_type: f5(slab)
[   15.482119] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000
[   15.482797] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   15.483111] page dumped because: kasan: bad access detected
[   15.483352] 
[   15.483426] Memory state around the buggy address:
[   15.484021]  ffff888102b49700: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   15.484671]  ffff888102b49780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   15.485153] >ffff888102b49800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   15.485843]                                                                 ^
[   15.486353]  ffff888102b49880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   15.486859]  ffff888102b49900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   15.487383] ==================================================================