[   16.723891] ==================================================================
[   16.725001] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_4+0x166/0x330
[   16.725642] Write of size 4 at addr ffff888102b42675 by task kunit_try_catch/191
[   16.726505] 
[   16.726738] CPU: 1 UID: 0 PID: 191 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-rc6-next-20250512 #1 PREEMPT(voluntary) 
[   16.726849] Tainted: [B]=BAD_PAGE, [N]=TEST
[   16.726876] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   16.726919] Call Trace:
[   16.726948]  <TASK>
[   16.726987]  dump_stack_lvl+0x73/0xb0
[   16.727069]  print_report+0xd1/0x650
[   16.727111]  ? __virt_addr_valid+0x1db/0x2d0
[   16.727377]  ? kmalloc_oob_memset_4+0x166/0x330
[   16.727430]  ? kasan_complete_mode_report_info+0x2a/0x200
[   16.727479]  ? kmalloc_oob_memset_4+0x166/0x330
[   16.727507]  kasan_report+0x141/0x180
[   16.727534]  ? kmalloc_oob_memset_4+0x166/0x330
[   16.727562]  kasan_check_range+0x10c/0x1c0
[   16.727587]  __asan_memset+0x27/0x50
[   16.727608]  kmalloc_oob_memset_4+0x166/0x330
[   16.727632]  ? __pfx_kmalloc_oob_memset_4+0x10/0x10
[   16.727671]  ? __schedule+0x10cc/0x2b60
[   16.727734]  ? __pfx_read_tsc+0x10/0x10
[   16.727759]  ? ktime_get_ts64+0x86/0x230
[   16.727787]  kunit_try_run_case+0x1a5/0x480
[   16.727817]  ? __pfx_kunit_try_run_case+0x10/0x10
[   16.727841]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   16.727866]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   16.727889]  ? __kthread_parkme+0x82/0x180
[   16.727912]  ? preempt_count_sub+0x50/0x80
[   16.727938]  ? __pfx_kunit_try_run_case+0x10/0x10
[   16.727962]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   16.727986]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   16.728010]  kthread+0x337/0x6f0
[   16.728031]  ? trace_preempt_on+0x20/0xc0
[   16.728102]  ? __pfx_kthread+0x10/0x10
[   16.728136]  ? _raw_spin_unlock_irq+0x47/0x80
[   16.728167]  ? calculate_sigpending+0x7b/0xa0
[   16.728204]  ? __pfx_kthread+0x10/0x10
[   16.728237]  ret_from_fork+0x116/0x1d0
[   16.728278]  ? __pfx_kthread+0x10/0x10
[   16.728311]  ret_from_fork_asm+0x1a/0x30
[   16.728358]  </TASK>
[   16.728378] 
[   16.742305] Allocated by task 191:
[   16.743297]  kasan_save_stack+0x45/0x70
[   16.743825]  kasan_save_track+0x18/0x40
[   16.744026]  kasan_save_alloc_info+0x3b/0x50
[   16.744431]  __kasan_kmalloc+0xb7/0xc0
[   16.745255]  __kmalloc_cache_noprof+0x189/0x420
[   16.745590]  kmalloc_oob_memset_4+0xac/0x330
[   16.745771]  kunit_try_run_case+0x1a5/0x480
[   16.746049]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   16.746499]  kthread+0x337/0x6f0
[   16.746809]  ret_from_fork+0x116/0x1d0
[   16.747124]  ret_from_fork_asm+0x1a/0x30
[   16.747767] 
[   16.747915] The buggy address belongs to the object at ffff888102b42600
[   16.747915]  which belongs to the cache kmalloc-128 of size 128
[   16.748387] The buggy address is located 117 bytes inside of
[   16.748387]  allocated 120-byte region [ffff888102b42600, ffff888102b42678)
[   16.750158] 
[   16.750339] The buggy address belongs to the physical page:
[   16.750568] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102b42
[   16.751173] flags: 0x200000000000000(node=0|zone=2)
[   16.751666] page_type: f5(slab)
[   16.751973] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000
[   16.752480] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   16.753227] page dumped because: kasan: bad access detected
[   16.754060] 
[   16.754394] Memory state around the buggy address:
[   16.754811]  ffff888102b42500: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   16.755492]  ffff888102b42580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   16.755932] >ffff888102b42600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   16.756363]                                                                 ^
[   16.756726]  ffff888102b42680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   16.757636]  ffff888102b42700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   16.758154] ==================================================================