cfgfile: fix stack buffer underflow

[dpdk.git] / lib / librte_cfgfile / rte_cfgfile.c

diff --git a/lib/librte_cfgfile/rte_cfgfile.c b/lib/librte_cfgfile/rte_cfgfile.c
index f132e40..0020222 100644 (file)
--- a/lib/librte_cfgfile/rte_cfgfile.c
+++ b/lib/librte_cfgfile/rte_cfgfile.c
@@ -191,7 +191,8 @@ rte_cfgfile_load_with_params(const char *filename, int flags,
                }
                /* skip parsing if comment character found */
                pos = memchr(buffer, params->comment_character, len);
-               if (pos != NULL && (*(pos-1) != '\\')) {
+               if (pos != NULL &&
+                   (pos == buffer || *(pos-1) != '\\')) {
                        *pos = '\0';
                        len = pos -  buffer;
                }