[   23.766317] ==================================================================
[   23.766849] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x329/0x390
[   23.767951] Read of size 1 at addr ffff8881039afc4a by task kunit_try_catch/282
[   23.768747] 
[   23.768880] CPU: 1 UID: 0 PID: 282 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc3-next-20250623 #1 PREEMPT(voluntary) 
[   23.769102] Tainted: [B]=BAD_PAGE, [N]=TEST
[   23.769119] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   23.769147] Call Trace:
[   23.769161]  <TASK>
[   23.769179]  dump_stack_lvl+0x73/0xb0
[   23.769226]  print_report+0xd1/0x650
[   23.769246]  ? __virt_addr_valid+0x1db/0x2d0
[   23.769267]  ? kasan_alloca_oob_right+0x329/0x390
[   23.769286]  ? kasan_addr_to_slab+0x11/0xa0
[   23.769303]  ? kasan_alloca_oob_right+0x329/0x390
[   23.769322]  kasan_report+0x141/0x180
[   23.769340]  ? kasan_alloca_oob_right+0x329/0x390
[   23.769362]  __asan_report_load1_noabort+0x18/0x20
[   23.769577]  kasan_alloca_oob_right+0x329/0x390
[   23.769610]  ? __kasan_check_write+0x18/0x20
[   23.769634]  ? __pfx_sched_clock_cpu+0x10/0x10
[   23.769654]  ? finish_task_switch.isra.0+0x153/0x700
[   23.769673]  ? rwsem_down_write_slowpath+0x2ce/0x1150
[   23.769695]  ? trace_hardirqs_on+0x37/0xe0
[   23.769716]  ? __pfx_kasan_alloca_oob_right+0x10/0x10
[   23.769737]  ? __schedule+0x10cc/0x2b60
[   23.769755]  ? __pfx_read_tsc+0x10/0x10
[   23.769773]  ? ktime_get_ts64+0x86/0x230
[   23.769794]  kunit_try_run_case+0x1a5/0x480
[   23.769815]  ? __pfx_kunit_try_run_case+0x10/0x10
[   23.769837]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   23.769863]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   23.769881]  ? __kthread_parkme+0x82/0x180
[   23.769899]  ? preempt_count_sub+0x50/0x80
[   23.769918]  ? __pfx_kunit_try_run_case+0x10/0x10
[   23.769938]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   23.769958]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   23.769977]  kthread+0x337/0x6f0
[   23.769995]  ? trace_preempt_on+0x20/0xc0
[   23.770025]  ? __pfx_kthread+0x10/0x10
[   23.770048]  ? _raw_spin_unlock_irq+0x47/0x80
[   23.770078]  ? calculate_sigpending+0x7b/0xa0
[   23.770145]  ? __pfx_kthread+0x10/0x10
[   23.770175]  ret_from_fork+0x116/0x1d0
[   23.770195]  ? __pfx_kthread+0x10/0x10
[   23.770215]  ret_from_fork_asm+0x1a/0x30
[   23.770246]  </TASK>
[   23.770257] 
[   23.782340] The buggy address belongs to stack of task kunit_try_catch/282
[   23.782804] 
[   23.782980] The buggy address belongs to the physical page:
[   23.783350] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1039af
[   23.783606] flags: 0x200000000000000(node=0|zone=2)
[   23.784207] raw: 0200000000000000 ffffea00040e6bc8 ffffea00040e6bc8 0000000000000000
[   23.784742] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[   23.785344] page dumped because: kasan: bad access detected
[   23.785590] 
[   23.785680] Memory state around the buggy address:
[   23.786041]  ffff8881039afb00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   23.786537]  ffff8881039afb80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   23.787038] >ffff8881039afc00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb
[   23.787812]                                               ^
[   23.788391]  ffff8881039afc80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00
[   23.788795]  ffff8881039afd00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1
[   23.789302] ==================================================================