The offending code below appears in this loop: virNWFilterHashTablePtr filterparams = NULL; ... cur = node->children; while (cur != NULL) { ... } so the first assignment works fine, but second and subsequent ones leak the buffer returned by each preceding virNWFilterParseParamAttributes call. From: Jim Meyering <meyering(a)redhat.com&gt; Date: Tue, 18 May 2010 10:19:30 +0200 Subject: [PATCH] virDomainNetDefParseXML: avoid leak upon multiple "filterref" * src/conf/domain_conf.c (virDomainNetDefParseXML): Don't leak memory when parsing two or more "filterref" elements. --- src/conf/domain_conf.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index 3e45f79..0c717f2 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -1905,6 +1905,7 @@ virDomainNetDefParseXML(virCapsPtr caps, model = virXMLPropString(cur, "type"); } else if (xmlStrEqual (cur->name, BAD_CAST "filterref")) { filter = virXMLPropString(cur, "filter"); + free(filterparams); filterparams = virNWFilterParseParamAttributes(cur); } else if ((flags & VIR_DOMAIN_XML_INTERNAL_STATUS) && xmlStrEqual(cur->name, BAD_CAST "state")) { -- 1.7.1.250.g7d1e8