[   27.057689] ==================================================================
[   27.061294] BUG: KASAN: slab-use-after-free in strcmp+0xb0/0xc0
[   27.062112] Read of size 1 at addr ffff8881060c6b10 by task kunit_try_catch/307
[   27.062343] 
[   27.062436] CPU: 1 UID: 0 PID: 307 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc5-next-20250710 #1 PREEMPT(voluntary) 
[   27.062500] Tainted: [B]=BAD_PAGE, [N]=TEST
[   27.062514] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   27.062541] Call Trace:
[   27.062557]  <TASK>
[   27.062579]  dump_stack_lvl+0x73/0xb0
[   27.062610]  print_report+0xd1/0x610
[   27.062640]  ? __virt_addr_valid+0x1db/0x2d0
[   27.062667]  ? strcmp+0xb0/0xc0
[   27.062688]  ? kasan_complete_mode_report_info+0x64/0x200
[   27.063555]  ? strcmp+0xb0/0xc0
[   27.063582]  kasan_report+0x141/0x180
[   27.063606]  ? strcmp+0xb0/0xc0
[   27.063633]  __asan_report_load1_noabort+0x18/0x20
[   27.063660]  strcmp+0xb0/0xc0
[   27.063682]  kasan_strings+0x431/0xe80
[   27.063720]  ? trace_hardirqs_on+0x37/0xe0
[   27.063745]  ? __pfx_kasan_strings+0x10/0x10
[   27.063765]  ? finish_task_switch.isra.0+0x153/0x700
[   27.063801]  ? __switch_to+0x47/0xf80
[   27.063828]  ? __schedule+0x10cc/0x2b60
[   27.063856]  ? __pfx_read_tsc+0x10/0x10
[   27.063880]  ? ktime_get_ts64+0x86/0x230
[   27.063905]  kunit_try_run_case+0x1a5/0x480
[   27.063929]  ? __pfx_kunit_try_run_case+0x10/0x10
[   27.063949]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   27.063973]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   27.063996]  ? __kthread_parkme+0x82/0x180
[   27.064018]  ? preempt_count_sub+0x50/0x80
[   27.064040]  ? __pfx_kunit_try_run_case+0x10/0x10
[   27.064062]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   27.064087]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   27.064112]  kthread+0x337/0x6f0
[   27.064132]  ? trace_preempt_on+0x20/0xc0
[   27.064154]  ? __pfx_kthread+0x10/0x10
[   27.064174]  ? _raw_spin_unlock_irq+0x47/0x80
[   27.064196]  ? calculate_sigpending+0x7b/0xa0
[   27.064221]  ? __pfx_kthread+0x10/0x10
[   27.064242]  ret_from_fork+0x116/0x1d0
[   27.064260]  ? __pfx_kthread+0x10/0x10
[   27.064282]  ret_from_fork_asm+0x1a/0x30
[   27.064314]  </TASK>
[   27.064327] 
[   27.078694] Allocated by task 307:
[   27.078851]  kasan_save_stack+0x45/0x70
[   27.078997]  kasan_save_track+0x18/0x40
[   27.079125]  kasan_save_alloc_info+0x3b/0x50
[   27.079263]  __kasan_kmalloc+0xb7/0xc0
[   27.079386]  __kmalloc_cache_noprof+0x189/0x420
[   27.079532]  kasan_strings+0xc0/0xe80
[   27.079654]  kunit_try_run_case+0x1a5/0x480
[   27.079858]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   27.080111]  kthread+0x337/0x6f0
[   27.080271]  ret_from_fork+0x116/0x1d0
[   27.080458]  ret_from_fork_asm+0x1a/0x30
[   27.080646] 
[   27.080982] Freed by task 307:
[   27.081149]  kasan_save_stack+0x45/0x70
[   27.081346]  kasan_save_track+0x18/0x40
[   27.081558]  kasan_save_free_info+0x3f/0x60
[   27.081845]  __kasan_slab_free+0x56/0x70
[   27.082048]  kfree+0x222/0x3f0
[   27.082210]  kasan_strings+0x2aa/0xe80
[   27.082389]  kunit_try_run_case+0x1a5/0x480
[   27.082620]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   27.082945]  kthread+0x337/0x6f0
[   27.083075]  ret_from_fork+0x116/0x1d0
[   27.083222]  ret_from_fork_asm+0x1a/0x30
[   27.083417] 
[   27.083534] The buggy address belongs to the object at ffff8881060c6b00
[   27.083534]  which belongs to the cache kmalloc-32 of size 32
[   27.084106] The buggy address is located 16 bytes inside of
[   27.084106]  freed 32-byte region [ffff8881060c6b00, ffff8881060c6b20)
[   27.084492] 
[   27.084584] The buggy address belongs to the physical page:
[   27.084946] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1060c6
[   27.085315] flags: 0x200000000000000(node=0|zone=2)
[   27.085549] page_type: f5(slab)
[   27.085758] raw: 0200000000000000 ffff888100041780 dead000000000122 0000000000000000
[   27.086184] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000
[   27.086481] page dumped because: kasan: bad access detected
[   27.086728] 
[   27.086865] Memory state around the buggy address:
[   27.087058]  ffff8881060c6a00: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc
[   27.087375]  ffff8881060c6a80: 00 00 07 fc fc fc fc fc 00 00 00 fc fc fc fc fc
[   27.087730] >ffff8881060c6b00: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc
[   27.088092]                          ^
[   27.088257]  ffff8881060c6b80: fa fb fb fb fc fc fc fc 00 00 00 fc fc fc fc fc
[   27.088554]  ffff8881060c6c00: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc
[   27.089022] ==================================================================