[   14.233579] ==================================================================
[   14.233883] BUG: KASAN: slab-use-after-free in kasan_strings+0xcbc/0xe80
[   14.234205] Read of size 1 at addr ffff888102746ad0 by task kunit_try_catch/276
[   14.234666] 
[   14.234817] CPU: 1 UID: 0 PID: 276 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc6 #1 PREEMPT(voluntary) 
[   14.234858] Tainted: [B]=BAD_PAGE, [N]=TEST
[   14.234870] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   14.234890] Call Trace:
[   14.234924]  <TASK>
[   14.234938]  dump_stack_lvl+0x73/0xb0
[   14.234967]  print_report+0xd1/0x610
[   14.235001]  ? __virt_addr_valid+0x1db/0x2d0
[   14.235023]  ? kasan_strings+0xcbc/0xe80
[   14.235043]  ? kasan_complete_mode_report_info+0x64/0x200
[   14.235068]  ? kasan_strings+0xcbc/0xe80
[   14.235089]  kasan_report+0x141/0x180
[   14.235120]  ? kasan_strings+0xcbc/0xe80
[   14.235145]  __asan_report_load1_noabort+0x18/0x20
[   14.235168]  kasan_strings+0xcbc/0xe80
[   14.235198]  ? trace_hardirqs_on+0x37/0xe0
[   14.235220]  ? __pfx_kasan_strings+0x10/0x10
[   14.235240]  ? finish_task_switch.isra.0+0x153/0x700
[   14.235262]  ? __switch_to+0x47/0xf50
[   14.235286]  ? __schedule+0x10cc/0x2b60
[   14.235308]  ? __pfx_read_tsc+0x10/0x10
[   14.235328]  ? ktime_get_ts64+0x86/0x230
[   14.235402]  kunit_try_run_case+0x1a5/0x480
[   14.235430]  ? __pfx_kunit_try_run_case+0x10/0x10
[   14.235452]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   14.235487]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   14.235510]  ? __kthread_parkme+0x82/0x180
[   14.235530]  ? preempt_count_sub+0x50/0x80
[   14.235553]  ? __pfx_kunit_try_run_case+0x10/0x10
[   14.235576]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   14.235608]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   14.235631]  kthread+0x337/0x6f0
[   14.235650]  ? trace_preempt_on+0x20/0xc0
[   14.235683]  ? __pfx_kthread+0x10/0x10
[   14.235702]  ? _raw_spin_unlock_irq+0x47/0x80
[   14.235724]  ? calculate_sigpending+0x7b/0xa0
[   14.235747]  ? __pfx_kthread+0x10/0x10
[   14.235768]  ret_from_fork+0x116/0x1d0
[   14.235794]  ? __pfx_kthread+0x10/0x10
[   14.235814]  ret_from_fork_asm+0x1a/0x30
[   14.235844]  </TASK>
[   14.235866] 
[   14.244458] Allocated by task 276:
[   14.244685]  kasan_save_stack+0x45/0x70
[   14.244920]  kasan_save_track+0x18/0x40
[   14.245118]  kasan_save_alloc_info+0x3b/0x50
[   14.245341]  __kasan_kmalloc+0xb7/0xc0
[   14.245550]  __kmalloc_cache_noprof+0x189/0x420
[   14.245851]  kasan_strings+0xc0/0xe80
[   14.246042]  kunit_try_run_case+0x1a5/0x480
[   14.246239]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   14.246674]  kthread+0x337/0x6f0
[   14.246901]  ret_from_fork+0x116/0x1d0
[   14.247049]  ret_from_fork_asm+0x1a/0x30
[   14.247197] 
[   14.247268] Freed by task 276:
[   14.247410]  kasan_save_stack+0x45/0x70
[   14.247617]  kasan_save_track+0x18/0x40
[   14.247808]  kasan_save_free_info+0x3f/0x60
[   14.248495]  __kasan_slab_free+0x56/0x70
[   14.248753]  kfree+0x222/0x3f0
[   14.248932]  kasan_strings+0x2aa/0xe80
[   14.249123]  kunit_try_run_case+0x1a5/0x480
[   14.249287]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   14.250953]  kthread+0x337/0x6f0
[   14.251156]  ret_from_fork+0x116/0x1d0
[   14.251344]  ret_from_fork_asm+0x1a/0x30
[   14.251531] 
[   14.251839] The buggy address belongs to the object at ffff888102746ac0
[   14.251839]  which belongs to the cache kmalloc-32 of size 32
[   14.252645] The buggy address is located 16 bytes inside of
[   14.252645]  freed 32-byte region [ffff888102746ac0, ffff888102746ae0)
[   14.253138] 
[   14.253213] The buggy address belongs to the physical page:
[   14.253504] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102746
[   14.254138] flags: 0x200000000000000(node=0|zone=2)
[   14.254305] page_type: f5(slab)
[   14.254624] raw: 0200000000000000 ffff888100041780 dead000000000122 0000000000000000
[   14.255133] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000
[   14.255366] page dumped because: kasan: bad access detected
[   14.255561] 
[   14.255656] Memory state around the buggy address:
[   14.255880]  ffff888102746980: 00 00 00 fc fc fc fc fc 00 00 00 04 fc fc fc fc
[   14.256459]  ffff888102746a00: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc
[   14.256855] >ffff888102746a80: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc
[   14.257125]                                                  ^
[   14.257479]  ffff888102746b00: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc
[   14.257809]  ffff888102746b80: 00 00 00 fc fc fc fc fc fa fb fb fb fc fc fc fc
[   14.258129] ==================================================================