[   13.015206] ==================================================================
[   13.015754] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x320/0x380
[   13.016104] Read of size 1 at addr ffff8881039efc3f by task kunit_try_catch/270
[   13.016589] 
[   13.016700] CPU: 1 UID: 0 PID: 270 Comm: kunit_try_catch Tainted: G    B            N  6.15.5-rc1 #1 PREEMPT(voluntary) 
[   13.016764] Tainted: [B]=BAD_PAGE, [N]=TEST
[   13.016777] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   13.016802] Call Trace:
[   13.016816]  <TASK>
[   13.016837]  dump_stack_lvl+0x73/0xb0
[   13.016867]  print_report+0xd1/0x650
[   13.016891]  ? __virt_addr_valid+0x1db/0x2d0
[   13.016916]  ? kasan_alloca_oob_left+0x320/0x380
[   13.016940]  ? kasan_addr_to_slab+0x11/0xa0
[   13.016962]  ? kasan_alloca_oob_left+0x320/0x380
[   13.016986]  kasan_report+0x141/0x180
[   13.017009]  ? kasan_alloca_oob_left+0x320/0x380
[   13.017038]  __asan_report_load1_noabort+0x18/0x20
[   13.017059]  kasan_alloca_oob_left+0x320/0x380
[   13.017084]  ? finish_task_switch.isra.0+0x153/0x700
[   13.017111]  ? __mutex_lock.constprop.0+0xace/0x1280
[   13.017134]  ? trace_hardirqs_on+0x37/0xe0
[   13.017161]  ? __pfx_kasan_alloca_oob_left+0x10/0x10
[   13.017187]  ? __schedule+0x10cc/0x2b60
[   13.017210]  ? __pfx_read_tsc+0x10/0x10
[   13.017243]  ? ktime_get_ts64+0x86/0x230
[   13.017271]  kunit_try_run_case+0x1a5/0x480
[   13.017297]  ? __pfx_kunit_try_run_case+0x10/0x10
[   13.017320]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   13.017398]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   13.017427]  ? __kthread_parkme+0x82/0x180
[   13.017451]  ? preempt_count_sub+0x50/0x80
[   13.017477]  ? __pfx_kunit_try_run_case+0x10/0x10
[   13.017502]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   13.017526]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   13.017556]  kthread+0x337/0x6f0
[   13.017573]  ? trace_preempt_on+0x20/0xc0
[   13.017597]  ? __pfx_kthread+0x10/0x10
[   13.017615]  ? _raw_spin_unlock_irq+0x47/0x80
[   13.017638]  ? calculate_sigpending+0x7b/0xa0
[   13.017660]  ? __pfx_kthread+0x10/0x10
[   13.017679]  ret_from_fork+0x41/0x80
[   13.017700]  ? __pfx_kthread+0x10/0x10
[   13.017734]  ret_from_fork_asm+0x1a/0x30
[   13.017766]  </TASK>
[   13.017778] 
[   13.028932] The buggy address belongs to stack of task kunit_try_catch/270
[   13.029436] 
[   13.029534] The buggy address belongs to the physical page:
[   13.030015] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1039ef
[   13.030521] flags: 0x200000000000000(node=0|zone=2)
[   13.030930] raw: 0200000000000000 ffffea00040e7bc8 ffffea00040e7bc8 0000000000000000
[   13.031297] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[   13.031864] page dumped because: kasan: bad access detected
[   13.032107] 
[   13.032393] Memory state around the buggy address:
[   13.032877]  ffff8881039efb00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   13.033345]  ffff8881039efb80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   13.033679] >ffff8881039efc00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb
[   13.034163]                                         ^
[   13.034665]  ffff8881039efc80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00
[   13.035048]  ffff8881039efd00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1
[   13.035503] ==================================================================