[PATCH v8 6/7] kasan: Test fix: Warn if the UAF could not be detected in kmalloc_uaf2

From	Alexander Potapenko <glider@google.com>
Newsgroups	linux.kernel
Subject	[PATCH v8 6/7] kasan: Test fix: Warn if the UAF could not be detected in kmalloc_uaf2
Date	2016-03-15 11:20 +0100
Message-ID	<rcUeZ-EM-1@gated-at.bofh.it> (permalink)
References	<rcUeZ-EM-3@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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Signed-off-by: Alexander Potapenko <glider@google.com>
Acked-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
---
 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

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[PATCH v8 6/7] kasan: Test fix: Warn if the UAF could not be detected in kmalloc_uaf2 Alexander Potapenko <glider@google.com> - 2016-03-15 11:20 +0100

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