[dpdk-dev] [PATCH] cfgfile: fix integer overflow

[Michal Kobylinski]

Fix issue reported by Coverity.

Coverity ID 13289: Integer overflowed argument: The argument will be too
small or even negative, likely resulting in unexpected behavior (for
example, under-allocation in a memory allocation function).
In rte_cfgfile_load: An integer overflow occurs, with the overflowed
value used as an argument to a function

Fixes: eaafbad419bf ("cfgfile: library to interpret config files")

Signed-off-by: Michal Kobylinski <michalx.kobylinski at intel.com>
---
 lib/librte_cfgfile/rte_cfgfile.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/librte_cfgfile/rte_cfgfile.c b/lib/librte_cfgfile/rte_cfgfile.c
index 75625a2..0a5a279 100644
--- a/lib/librte_cfgfile/rte_cfgfile.c
+++ b/lib/librte_cfgfile/rte_cfgfile.c
@@ -135,7 +135,7 @@ rte_cfgfile_load(const char *filename, int flags)
 				goto error1;
 			}
 			*end = '\0';
-			_strip(&buffer[1], end - &buffer[1]);
+			_strip(&buffer[1], (unsigned)(end - &buffer[1]));
 
 			/* close off old section and add start new one */
 			if (curr_section >= 0)
-- 
1.9.1