[PATCH v5 6/7] kasan: Test fix: Warn if the UAF could not be detected in kmalloc_uaf2

[Alexander Potapenko]

Signed-off-by: Alexander Potapenko <glider@xxxxxxxxxx>
Acked-by: Andrey Ryabinin <aryabinin@xxxxxxxxxxxxx>
---
 lib/test_kasan.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/test_kasan.c b/lib/test_kasan.c
index 90ad74f..82169fb 100644
--- a/lib/test_kasan.c
+++ b/lib/test_kasan.c
@@ -294,6 +294,8 @@ static noinline void __init kmalloc_uaf2(void)
 	}
 
 	ptr1[40] = 'x';
+	if (ptr1 == ptr2)
+		pr_err("Could not detect use-after-free: ptr1 == ptr2\n");
 	kfree(ptr2);
 }
 
-- 
2.7.0.rc3.207.g0ac5344