[libvirt] [PATCH 1/2] util: storagefile: Don't crash on gluster URIs without path

Similar to commit fdb80ed4f6563928b9942a0d1450e0c725aa6c06 libvirtd would crash if a gluster URI without path would be used in the backing chain of a volume. The crash happens in the gluster specific part of the parser that extracts the gluster volume name from the path. Fix the crash by checking that the PATH is NULL. This patch does not contain a test case as it's not possible to test it with the current infrastructure as the test suite would attempt to contact the gluster server in the URI. I'm working on the test suite addition but that will be post-release material. Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1196528 --- src/util/virstoragefile.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/src/util/virstoragefile.c b/src/util/virstoragefile.c index 029fe17..ba00143 100644 --- a/src/util/virstoragefile.c +++ b/src/util/virstoragefile.c @@ -2163,6 +2163,13 @@ virStorageSourceParseBackingURI(virStorageSourcePtr src, if (src->protocol == VIR_STORAGE_NET_PROTOCOL_GLUSTER) { char *tmp; + + if (!src->path) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("missing volume name and path for gluster volume")); + goto cleanup; + } + if (!(tmp = strchr(src->path, '/')) || tmp == src->path) { virReportError(VIR_ERR_XML_ERROR, -- 2.2.2