[   13.272285] ==================================================================
[   13.272790] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_left+0x361/0x3c0
[   13.273448] Read of size 1 at addr ffff8881022a343f by task kunit_try_catch/156
[   13.273784] 
[   13.273999] CPU: 1 UID: 0 PID: 156 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-rc6-next-20250515 #1 PREEMPT(voluntary) 
[   13.274095] Tainted: [B]=BAD_PAGE, [N]=TEST
[   13.274120] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   13.274162] Call Trace:
[   13.274190]  <TASK>
[   13.274241]  dump_stack_lvl+0x73/0xb0
[   13.274297]  print_report+0xd1/0x650
[   13.274343]  ? __virt_addr_valid+0x1db/0x2d0
[   13.274383]  ? kmalloc_oob_left+0x361/0x3c0
[   13.274418]  ? kasan_complete_mode_report_info+0x2a/0x200
[   13.274453]  ? kmalloc_oob_left+0x361/0x3c0
[   13.274499]  kasan_report+0x141/0x180
[   13.274535]  ? kmalloc_oob_left+0x361/0x3c0
[   13.274601]  __asan_report_load1_noabort+0x18/0x20
[   13.274643]  kmalloc_oob_left+0x361/0x3c0
[   13.274687]  ? __pfx_kmalloc_oob_left+0x10/0x10
[   13.274732]  ? __schedule+0x10cc/0x2b60
[   13.274776]  ? __pfx_read_tsc+0x10/0x10
[   13.274818]  ? ktime_get_ts64+0x86/0x230
[   13.274869]  kunit_try_run_case+0x1a5/0x480
[   13.274930]  ? __pfx_kunit_try_run_case+0x10/0x10
[   13.274964]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   13.275021]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   13.275043]  ? __kthread_parkme+0x82/0x180
[   13.275064]  ? preempt_count_sub+0x50/0x80
[   13.275087]  ? __pfx_kunit_try_run_case+0x10/0x10
[   13.275109]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   13.275131]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   13.275152]  kthread+0x337/0x6f0
[   13.275170]  ? trace_preempt_on+0x20/0xc0
[   13.275193]  ? __pfx_kthread+0x10/0x10
[   13.275212]  ? _raw_spin_unlock_irq+0x47/0x80
[   13.275247]  ? calculate_sigpending+0x7b/0xa0
[   13.275271]  ? __pfx_kthread+0x10/0x10
[   13.275291]  ret_from_fork+0x116/0x1d0
[   13.275309]  ? __pfx_kthread+0x10/0x10
[   13.275329]  ret_from_fork_asm+0x1a/0x30
[   13.275360]  </TASK>
[   13.275372] 
[   13.285640] Allocated by task 41:
[   13.285953]  kasan_save_stack+0x45/0x70
[   13.286329]  kasan_save_track+0x18/0x40
[   13.286883]  kasan_save_alloc_info+0x3b/0x50
[   13.287267]  __kasan_kmalloc+0xb7/0xc0
[   13.287695]  __kmalloc_node_track_caller_noprof+0x1cb/0x500
[   13.287965]  kvasprintf+0xc5/0x150
[   13.288191]  __kthread_create_on_node+0x18b/0x3a0
[   13.288543]  kthread_create_on_node+0xab/0xe0
[   13.288996]  create_worker+0x3e5/0x7b0
[   13.289229]  worker_thread+0x991/0x1320
[   13.289512]  kthread+0x337/0x6f0
[   13.290009]  ret_from_fork+0x116/0x1d0
[   13.290343]  ret_from_fork_asm+0x1a/0x30
[   13.290682] 
[   13.290787] The buggy address belongs to the object at ffff8881022a3420
[   13.290787]  which belongs to the cache kmalloc-16 of size 16
[   13.291420] The buggy address is located 19 bytes to the right of
[   13.291420]  allocated 12-byte region [ffff8881022a3420, ffff8881022a342c)
[   13.292061] 
[   13.292217] The buggy address belongs to the physical page:
[   13.292461] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1022a3
[   13.292776] flags: 0x200000000000000(node=0|zone=2)
[   13.293150] page_type: f5(slab)
[   13.293389] raw: 0200000000000000 ffff888100041640 dead000000000122 0000000000000000
[   13.294022] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000
[   13.294288] page dumped because: kasan: bad access detected
[   13.294891] 
[   13.295185] Memory state around the buggy address:
[   13.296171]  ffff8881022a3300: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc
[   13.296757]  ffff8881022a3380: 00 02 fc fc 00 02 fc fc fa fb fc fc fa fb fc fc
[   13.297127] >ffff8881022a3400: 00 05 fc fc 00 04 fc fc 00 07 fc fc fc fc fc fc
[   13.297615]                                         ^
[   13.297990]  ffff8881022a3480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   13.298296]  ffff8881022a3500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   13.299278] ==================================================================