[   28.869997] ==================================================================
[   28.870276] BUG: KASAN: slab-use-after-free in strlen+0x8f/0xb0
[   28.870487] Read of size 1 at addr ffff888106048f50 by task kunit_try_catch/307
[   28.870902] 
[   28.871106] CPU: 1 UID: 0 PID: 307 Comm: kunit_try_catch Tainted: G    B   W        N  6.16.0-rc7-next-20250724 #1 PREEMPT(voluntary) 
[   28.871157] Tainted: [B]=BAD_PAGE, [W]=WARN, [N]=TEST
[   28.871171] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   28.871194] Call Trace:
[   28.871214]  <TASK>
[   28.871231]  dump_stack_lvl+0x73/0xb0
[   28.871264]  print_report+0xd1/0x640
[   28.871287]  ? __virt_addr_valid+0x1db/0x2d0
[   28.871321]  ? strlen+0x8f/0xb0
[   28.871340]  ? kasan_complete_mode_report_info+0x64/0x200
[   28.871366]  ? strlen+0x8f/0xb0
[   28.871395]  kasan_report+0x141/0x180
[   28.871418]  ? strlen+0x8f/0xb0
[   28.871441]  __asan_report_load1_noabort+0x18/0x20
[   28.871466]  strlen+0x8f/0xb0
[   28.871494]  kasan_strings+0x57b/0xe80
[   28.871515]  ? trace_hardirqs_on+0x37/0xe0
[   28.871537]  ? __pfx_kasan_strings+0x10/0x10
[   28.871568]  ? finish_task_switch.isra.0+0x153/0x700
[   28.871598]  ? __switch_to+0x47/0xf80
[   28.871623]  ? __schedule+0x10da/0x2b60
[   28.871649]  ? __pfx_read_tsc+0x10/0x10
[   28.871679]  ? ktime_get_ts64+0x86/0x230
[   28.871704]  kunit_try_run_case+0x1a5/0x480
[   28.871728]  ? __pfx_kunit_try_run_case+0x10/0x10
[   28.871761]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   28.871832]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   28.871862]  ? __kthread_parkme+0x82/0x180
[   28.871893]  ? preempt_count_sub+0x50/0x80
[   28.871916]  ? __pfx_kunit_try_run_case+0x10/0x10
[   28.871940]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   28.871974]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   28.871998]  kthread+0x337/0x6f0
[   28.872017]  ? trace_preempt_on+0x20/0xc0
[   28.872039]  ? __pfx_kthread+0x10/0x10
[   28.872059]  ? _raw_spin_unlock_irq+0x47/0x80
[   28.872091]  ? calculate_sigpending+0x7b/0xa0
[   28.872114]  ? __pfx_kthread+0x10/0x10
[   28.872135]  ret_from_fork+0x116/0x1d0
[   28.872164]  ? __pfx_kthread+0x10/0x10
[   28.872185]  ret_from_fork_asm+0x1a/0x30
[   28.872217]  </TASK>
[   28.872227] 
[   28.880382] Allocated by task 307:
[   28.880588]  kasan_save_stack+0x45/0x70
[   28.880769]  kasan_save_track+0x18/0x40
[   28.881299]  kasan_save_alloc_info+0x3b/0x50
[   28.881513]  __kasan_kmalloc+0xb7/0xc0
[   28.881702]  __kmalloc_cache_noprof+0x189/0x420
[   28.881967]  kasan_strings+0xc0/0xe80
[   28.882166]  kunit_try_run_case+0x1a5/0x480
[   28.882348]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   28.882518]  kthread+0x337/0x6f0
[   28.882646]  ret_from_fork+0x116/0x1d0
[   28.882774]  ret_from_fork_asm+0x1a/0x30
[   28.882964] 
[   28.883053] Freed by task 307:
[   28.883341]  kasan_save_stack+0x45/0x70
[   28.883530]  kasan_save_track+0x18/0x40
[   28.883829]  kasan_save_free_info+0x3f/0x60
[   28.884044]  __kasan_slab_free+0x56/0x70
[   28.884174]  kfree+0x222/0x3f0
[   28.884309]  kasan_strings+0x2aa/0xe80
[   28.884518]  kunit_try_run_case+0x1a5/0x480
[   28.884729]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   28.885249]  kthread+0x337/0x6f0
[   28.885423]  ret_from_fork+0x116/0x1d0
[   28.885600]  ret_from_fork_asm+0x1a/0x30
[   28.885797] 
[   28.885867] The buggy address belongs to the object at ffff888106048f40
[   28.885867]  which belongs to the cache kmalloc-32 of size 32
[   28.886434] The buggy address is located 16 bytes inside of
[   28.886434]  freed 32-byte region [ffff888106048f40, ffff888106048f60)
[   28.887032] 
[   28.887134] The buggy address belongs to the physical page:
[   28.887372] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106048
[   28.887722] flags: 0x200000000000000(node=0|zone=2)
[   28.888064] page_type: f5(slab)
[   28.888254] raw: 0200000000000000 ffff888100041780 dead000000000122 0000000000000000
[   28.888729] raw: 0000000000000000 0000000000400040 00000000f5000000 0000000000000000
[   28.889166] page dumped because: kasan: bad access detected
[   28.889403] 
[   28.889493] Memory state around the buggy address:
[   28.889656]  ffff888106048e00: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc
[   28.889864]  ffff888106048e80: 00 00 00 fc fc fc fc fc 00 00 00 fc fc fc fc fc
[   28.890176] >ffff888106048f00: 00 00 07 fc fc fc fc fc fa fb fb fb fc fc fc fc
[   28.890490]                                                  ^
[   28.890759]  ffff888106048f80: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc
[   28.891477]  ffff888106049000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   28.891940] ==================================================================