[dpdk-dev] [PATCH] app/test: fix memory_autotest integer overflow/wraparound

Sergio Gonzalez Monroy sergio.gonzalez.monroy at intel.com
Tue Nov 17 16:39:16 CET 2015


memory_autotest loops infinitely when at least one the memsegs
is bigger than 4GB.

The issue is the result of an integer overflow/wraparound of
the offset variable.

Fix it by using the correct type (size_t).

Signed-off-by: Sergio Gonzalez Monroy <sergio.gonzalez.monroy at intel.com>
---
 app/test/test_memory.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/app/test/test_memory.c b/app/test/test_memory.c
index 02ef3cf..6816385 100644
--- a/app/test/test_memory.c
+++ b/app/test/test_memory.c
@@ -55,7 +55,8 @@ static int
 test_memory(void)
 {
 	uint64_t s;
-	unsigned i, j;
+	unsigned i;
+	size_t j;
 	const struct rte_memseg *mem;
 
 	/*
-- 
2.4.3



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