[   23.736810] ==================================================================
[   23.737554] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x320/0x380
[   23.738209] Read of size 1 at addr ffff888103a87c3f by task kunit_try_catch/280
[   23.738541] 
[   23.738937] CPU: 0 UID: 0 PID: 280 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc3-next-20250623 #1 PREEMPT(voluntary) 
[   23.739203] Tainted: [B]=BAD_PAGE, [N]=TEST
[   23.739264] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   23.739295] Call Trace:
[   23.739317]  <TASK>
[   23.739339]  dump_stack_lvl+0x73/0xb0
[   23.739406]  print_report+0xd1/0x650
[   23.739440]  ? __virt_addr_valid+0x1db/0x2d0
[   23.739473]  ? kasan_alloca_oob_left+0x320/0x380
[   23.739502]  ? kasan_addr_to_slab+0x11/0xa0
[   23.739531]  ? kasan_alloca_oob_left+0x320/0x380
[   23.739562]  kasan_report+0x141/0x180
[   23.739592]  ? kasan_alloca_oob_left+0x320/0x380
[   23.739629]  __asan_report_load1_noabort+0x18/0x20
[   23.739666]  kasan_alloca_oob_left+0x320/0x380
[   23.739699]  ? __kasan_check_write+0x18/0x20
[   23.739739]  ? __pfx_sched_clock_cpu+0x10/0x10
[   23.739778]  ? finish_task_switch.isra.0+0x153/0x700
[   23.739819]  ? rwsem_down_write_slowpath+0x2ce/0x1150
[   23.739879]  ? trace_hardirqs_on+0x37/0xe0
[   23.739903]  ? __pfx_kasan_alloca_oob_left+0x10/0x10
[   23.739925]  ? __schedule+0x10cc/0x2b60
[   23.739943]  ? __pfx_read_tsc+0x10/0x10
[   23.739962]  ? ktime_get_ts64+0x86/0x230
[   23.739983]  kunit_try_run_case+0x1a5/0x480
[   23.740005]  ? __pfx_kunit_try_run_case+0x10/0x10
[   23.740025]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   23.740044]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   23.740074]  ? __kthread_parkme+0x82/0x180
[   23.740128]  ? preempt_count_sub+0x50/0x80
[   23.740162]  ? __pfx_kunit_try_run_case+0x10/0x10
[   23.740196]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   23.740220]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   23.740243]  kthread+0x337/0x6f0
[   23.740261]  ? trace_preempt_on+0x20/0xc0
[   23.740280]  ? __pfx_kthread+0x10/0x10
[   23.740298]  ? _raw_spin_unlock_irq+0x47/0x80
[   23.740316]  ? calculate_sigpending+0x7b/0xa0
[   23.740337]  ? __pfx_kthread+0x10/0x10
[   23.740356]  ret_from_fork+0x116/0x1d0
[   23.740372]  ? __pfx_kthread+0x10/0x10
[   23.740411]  ret_from_fork_asm+0x1a/0x30
[   23.740438]  </TASK>
[   23.740450] 
[   23.752844] The buggy address belongs to stack of task kunit_try_catch/280
[   23.753135] 
[   23.753229] The buggy address belongs to the physical page:
[   23.753479] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103a87
[   23.753793] flags: 0x200000000000000(node=0|zone=2)
[   23.754890] raw: 0200000000000000 ffffea00040ea1c8 ffffea00040ea1c8 0000000000000000
[   23.755154] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[   23.755374] page dumped because: kasan: bad access detected
[   23.755540] 
[   23.755612] Memory state around the buggy address:
[   23.756411]  ffff888103a87b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   23.756716]  ffff888103a87b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   23.757692] >ffff888103a87c00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb
[   23.757984]                                         ^
[   23.758277]  ffff888103a87c80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00
[   23.758791]  ffff888103a87d00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1
[   23.759599] ==================================================================