[   27.473415] ==================================================================
[   27.473824] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x320/0x380
[   27.474068] Read of size 1 at addr ffff888106287c3f by task kunit_try_catch/300
[   27.474584] 
[   27.474819] CPU: 0 UID: 0 PID: 300 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc6-next-20250717 #1 PREEMPT(voluntary) 
[   27.474928] Tainted: [B]=BAD_PAGE, [N]=TEST
[   27.474942] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   27.474963] Call Trace:
[   27.474976]  <TASK>
[   27.474993]  dump_stack_lvl+0x73/0xb0
[   27.475024]  print_report+0xd1/0x610
[   27.475046]  ? __virt_addr_valid+0x1db/0x2d0
[   27.475118]  ? kasan_alloca_oob_left+0x320/0x380
[   27.475144]  ? kasan_addr_to_slab+0x11/0xa0
[   27.475164]  ? kasan_alloca_oob_left+0x320/0x380
[   27.475186]  kasan_report+0x141/0x180
[   27.475208]  ? kasan_alloca_oob_left+0x320/0x380
[   27.475295]  __asan_report_load1_noabort+0x18/0x20
[   27.475322]  kasan_alloca_oob_left+0x320/0x380
[   27.475342]  ? __kasan_check_write+0x18/0x20
[   27.475366]  ? __pfx_sched_clock_cpu+0x10/0x10
[   27.475387]  ? finish_task_switch.isra.0+0x153/0x700
[   27.475409]  ? down_read+0x1ce/0x270
[   27.475432]  ? trace_hardirqs_on+0x37/0xe0
[   27.475484]  ? __pfx_kasan_alloca_oob_left+0x10/0x10
[   27.475509]  ? __schedule+0x10c6/0x2b60
[   27.475530]  ? __pfx_read_tsc+0x10/0x10
[   27.475551]  ? ktime_get_ts64+0x86/0x230
[   27.475576]  kunit_try_run_case+0x1a5/0x480
[   27.475600]  ? __pfx_kunit_try_run_case+0x10/0x10
[   27.475621]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   27.475644]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   27.475708]  ? __kthread_parkme+0x82/0x180
[   27.475732]  ? preempt_count_sub+0x50/0x80
[   27.475754]  ? __pfx_kunit_try_run_case+0x10/0x10
[   27.475777]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   27.475800]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   27.475822]  kthread+0x337/0x6f0
[   27.475841]  ? trace_preempt_on+0x20/0xc0
[   27.475863]  ? __pfx_kthread+0x10/0x10
[   27.475883]  ? _raw_spin_unlock_irq+0x47/0x80
[   27.475904]  ? calculate_sigpending+0x7b/0xa0
[   27.475927]  ? __pfx_kthread+0x10/0x10
[   27.475947]  ret_from_fork+0x116/0x1d0
[   27.475965]  ? __pfx_kthread+0x10/0x10
[   27.475986]  ret_from_fork_asm+0x1a/0x30
[   27.476017]  </TASK>
[   27.476028] 
[   27.491432] The buggy address belongs to stack of task kunit_try_catch/300
[   27.492033] 
[   27.492193] The buggy address belongs to the physical page:
[   27.492706] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106287
[   27.492949] flags: 0x200000000000000(node=0|zone=2)
[   27.493131] raw: 0200000000000000 ffffea000418a1c8 ffffea000418a1c8 0000000000000000
[   27.493893] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[   27.494752] page dumped because: kasan: bad access detected
[   27.495601] 
[   27.495846] Memory state around the buggy address:
[   27.496432]  ffff888106287b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   27.496927]  ffff888106287b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   27.497156] >ffff888106287c00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb
[   27.497402]                                         ^
[   27.497721]  ffff888106287c80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00
[   27.498015]  ffff888106287d00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1
[   27.498380] ==================================================================