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Avoid a libvirtd crash on broken input 523418

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* src/conf/domain_conf.c: a simple typo in an XML domain file could lead
  to a crash, because we called STRPREFIX() on the looked up value without
  checking it was non-null.
This commit is contained in:
Daniel Veillard 2009-10-01 11:54:38 +02:00
parent b37979023d
commit 79d233b5ca
1 changed files with 2 additions and 1 deletions
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src/conf/domain_conf.c
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@ -1032,7 +1032,8 @@ virDomainNetDefParseXML(virConnectPtr conn,
} else if ((ifname == NULL) &&
xmlStrEqual(cur->name, BAD_CAST "target")) {
ifname = virXMLPropString(cur, "dev");
if (STRPREFIX((const char*)ifname, "vnet")) {
if ((ifname != NULL) &&
(STRPREFIX((const char*)ifname, "vnet"))) {
/* An auto-generated target name, blank it out */
VIR_FREE(ifname);
}