[PATCH 2/3] virQEMUCapsNewBinary: Avoid NULL dereference

[Michal Privoznik]

Even with GLib it is still possible for virQEMUCapsNew() to
return NULL because it calls virQEMUCapsInitialize() which is a
wrapper over pthread_once() which may fail. At least, we still
check for its retval. If it so happens that the virQEMUCapsNew()
fails and returns NULL, we should not dereference it.

Signed-off-by: Michal Privoznik <mprivozn at redhat.com>
---
 src/qemu/qemu_capabilities.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
index a95a60c36a..3afe8a7b2c 100644
--- a/src/qemu/qemu_capabilities.c
+++ b/src/qemu/qemu_capabilities.c
@@ -1713,7 +1713,8 @@ virQEMUCapsNewBinary(const char *binary)
 {
     virQEMUCapsPtr qemuCaps = virQEMUCapsNew();
 
-    qemuCaps->binary = g_strdup(binary);
+    if (qemuCaps)
+        qemuCaps->binary = g_strdup(binary);
 
     return qemuCaps;
 }
-- 
2.24.1