In function virNodeDevPCICapSRIOVVirtualParseXML, temp variable addr could leak if VIR_APPEND_ELEMENT fails . Signed-off-by: Xu Yandong <xuyandong2(a)huawei.com&gt; --- src/conf/node_device_conf.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/src/conf/node_device_conf.c b/src/conf/node_device_conf.c index 618ce8e00e..2d8e03e53e 100644 --- a/src/conf/node_device_conf.c +++ b/src/conf/node_device_conf.c @@ -1519,8 +1519,10 @@ virNodeDevPCICapSRIOVVirtualParseXML(xmlXPathContextPtr ctxt, if (VIR_APPEND_ELEMENT(pci_dev->virtual_functions, pci_dev->num_virtual_functions, - addr) < 0) + addr) < 0) { + VIR_FREE(addr); goto cleanup; + } } pci_dev->flags |= VIR_NODE_DEV_CAP_FLAG_PCI_VIRTUAL_FUNCTION; -- 2.18.1