[   13.074619] ==================================================================
[   13.076627] BUG: KASAN: slab-use-after-free in strcmp+0xb0/0xc0
[   13.076840] Read of size 1 at addr ffff88810262ad90 by task kunit_try_catch/285
[   13.077058] 
[   13.077139] CPU: 0 UID: 0 PID: 285 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc2-next-20250618 #1 PREEMPT(voluntary) 
[   13.077189] Tainted: [B]=BAD_PAGE, [N]=TEST
[   13.077201] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   13.077234] Call Trace:
[   13.077250]  <TASK>
[   13.077266]  dump_stack_lvl+0x73/0xb0
[   13.077292]  print_report+0xd1/0x650
[   13.077316]  ? __virt_addr_valid+0x1db/0x2d0
[   13.077340]  ? strcmp+0xb0/0xc0
[   13.077360]  ? kasan_complete_mode_report_info+0x64/0x200
[   13.077385]  ? strcmp+0xb0/0xc0
[   13.077404]  kasan_report+0x141/0x180
[   13.077426]  ? strcmp+0xb0/0xc0
[   13.077449]  __asan_report_load1_noabort+0x18/0x20
[   13.077472]  strcmp+0xb0/0xc0
[   13.077493]  kasan_strings+0x431/0xe80
[   13.077512]  ? trace_hardirqs_on+0x37/0xe0
[   13.077536]  ? __pfx_kasan_strings+0x10/0x10
[   13.077556]  ? finish_task_switch.isra.0+0x153/0x700
[   13.077579]  ? __switch_to+0x47/0xf50
[   13.077604]  ? __schedule+0x10cc/0x2b60
[   13.077626]  ? __pfx_read_tsc+0x10/0x10
[   13.077648]  ? ktime_get_ts64+0x86/0x230
[   13.077672]  kunit_try_run_case+0x1a5/0x480
[   13.077695]  ? __pfx_kunit_try_run_case+0x10/0x10
[   13.077717]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   13.077738]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   13.077761]  ? __kthread_parkme+0x82/0x180
[   13.077782]  ? preempt_count_sub+0x50/0x80
[   13.077804]  ? __pfx_kunit_try_run_case+0x10/0x10
[   13.077827]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   13.077849]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   13.077870]  kthread+0x337/0x6f0
[   13.077889]  ? trace_preempt_on+0x20/0xc0
[   13.077911]  ? __pfx_kthread+0x10/0x10
[   13.077931]  ? _raw_spin_unlock_irq+0x47/0x80
[   13.077951]  ? calculate_sigpending+0x7b/0xa0
[   13.077974]  ? __pfx_kthread+0x10/0x10
[   13.077995]  ret_from_fork+0x116/0x1d0
[   13.078013]  ? __pfx_kthread+0x10/0x10
[   13.078033]  ret_from_fork_asm+0x1a/0x30
[   13.078063]  </TASK>
[   13.078074] 
[   13.088622] Allocated by task 285:
[   13.088756]  kasan_save_stack+0x45/0x70
[   13.088893]  kasan_save_track+0x18/0x40
[   13.089017]  kasan_save_alloc_info+0x3b/0x50
[   13.089154]  __kasan_kmalloc+0xb7/0xc0
[   13.089502]  __kmalloc_cache_noprof+0x189/0x420
[   13.089884]  kasan_strings+0xc0/0xe80
[   13.090228]  kunit_try_run_case+0x1a5/0x480
[   13.090645]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   13.091117]  kthread+0x337/0x6f0
[   13.091425]  ret_from_fork+0x116/0x1d0
[   13.091774]  ret_from_fork_asm+0x1a/0x30
[   13.092142] 
[   13.092311] Freed by task 285:
[   13.092576]  kasan_save_stack+0x45/0x70
[   13.092911]  kasan_save_track+0x18/0x40
[   13.093279]  kasan_save_free_info+0x3f/0x60
[   13.093659]  __kasan_slab_free+0x56/0x70
[   13.094007]  kfree+0x222/0x3f0
[   13.094294]  kasan_strings+0x2aa/0xe80
[   13.094614]  kunit_try_run_case+0x1a5/0x480
[   13.094779]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   13.094941]  kthread+0x337/0x6f0
[   13.095051]  ret_from_fork+0x116/0x1d0
[   13.095171]  ret_from_fork_asm+0x1a/0x30
[   13.095319] 
[   13.095403] The buggy address belongs to the object at ffff88810262ad80
[   13.095403]  which belongs to the cache kmalloc-32 of size 32
[   13.095818] The buggy address is located 16 bytes inside of
[   13.095818]  freed 32-byte region [ffff88810262ad80, ffff88810262ada0)
[   13.096261] 
[   13.096352] The buggy address belongs to the physical page:
[   13.096572] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10262a
[   13.096843] flags: 0x200000000000000(node=0|zone=2)
[   13.097011] page_type: f5(slab)
[   13.097172] raw: 0200000000000000 ffff888100041780 dead000000000122 0000000000000000
[   13.097754] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000
[   13.098003] page dumped because: kasan: bad access detected
[   13.098420] 
[   13.098503] Memory state around the buggy address:
[   13.098702]  ffff88810262ac80: 00 00 00 fc fc fc fc fc fa fb fb fb fc fc fc fc
[   13.098967]  ffff88810262ad00: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc
[   13.099506] >ffff88810262ad80: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc
[   13.099993]                          ^
[   13.100353]  ffff88810262ae00: fa fb fb fb fc fc fc fc 00 00 00 fc fc fc fc fc
[   13.100806]  ffff88810262ae80: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc
[   13.101103] ==================================================================