[libvirt] [PATCH] conf: prevent NULL pointer access in virSecurityLabelDefsParseXML

[Ján Tomko]

When checking for seclabels without security models, def->nseclabels is
already set to n. In the case of an error def->seclabels is freed but
nseclabels is left untouched. This leads to a segmentation fault when
def is freed in virDomainDefParseXML.
---
 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 82ccf4d..c02d6f8 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -3179,6 +3179,7 @@ error:
         virSecurityLabelDefFree(def->seclabels[i - 1]);
     }
     VIR_FREE(def->seclabels);
+    def->nseclabels = 0;
     VIR_FREE(list);
     return -1;
 }
-- 
1.7.8.6