[PATCH 4/4] kasan: adjust kasan_stack_oob for tag-based mode

[Andrey Konovalov]

Use OOB_TAG_OFF as access offset to land the access into the next granule.

Suggested-by: Walter Wu <walter-zh...@mediatek.com>
Signed-off-by: Andrey Konovalov <andreyk...@google.com>
---
 lib/test_kasan.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/test_kasan.c b/lib/test_kasan.c
index f362f2662938..53e953bb1d1d 100644
--- a/lib/test_kasan.c
+++ b/lib/test_kasan.c
@@ -488,7 +488,7 @@ static noinline void __init kasan_global_oob(void)
 static noinline void __init kasan_stack_oob(void)
 {
        char stack_array[10];
-       volatile int i = 0;
+       volatile int i = OOB_TAG_OFF;
        char *p = &stack_array[ARRAY_SIZE(stack_array) + i];
 
        pr_info("out-of-bounds on stack\n");
-- 
2.28.0.163.g6104cc2f0b6-goog