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From: Sergio Gonzalez Monroy <sergio.gonzalez.monroy@intel.com>
To: dev@dpdk.org
Subject: [dpdk-dev] [PATCH] app/test: fix memory_autotest integer overflow/wraparound
Date: Tue, 17 Nov 2015 15:39:16 +0000	[thread overview]
Message-ID: <1447774756-107404-1-git-send-email-sergio.gonzalez.monroy@intel.com> (raw)

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@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

             reply	other threads:[~2015-11-17 15:39 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-11-17 15:39 Sergio Gonzalez Monroy [this message]
2015-12-02 11:49 ` De Lara Guarch, Pablo
2015-12-07  2:46   ` Thomas Monjalon

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