diff mbox series

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

Message ID 403b259f1de49a7a3694531c851ac28326a586a8.1596199677.git.andreyknvl@google.com (mailing list archive)
State New, archived
Headers show
Series kasan: support stack instrumentation for tag-based mode | expand

Commit Message

Andrey Konovalov July 31, 2020, 1:20 p.m. UTC
Use OOB_TAG_OFF as access offset to land the access into the next granule.

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

Patch

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");