[libvirt] [PATCH] selinux: fix NULL dereference in GetSecurityMountOptions

[Ján Tomko]

In the case of an OOM error in virDomainDefGetSecurityLabelDef, secdef
is set to NULL, then dereferenced while printing the debug message.
---
 src/security/security_selinux.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/src/security/security_selinux.c b/src/security/security_selinux.c
index 5409e32..9134bc8 100644
--- a/src/security/security_selinux.c
+++ b/src/security/security_selinux.c
@@ -1993,7 +1993,8 @@ virSecuritySELinuxGetSecurityMountOptions(virSecurityManagerPtr mgr,
         return NULL;
     }
 
-    VIR_DEBUG("imageLabel=%s opts=%s", secdef->imagelabel, opts);
+    VIR_DEBUG("imageLabel=%s opts=%s",
+              secdef ? secdef->imagelabel : "(null)", opts);
     return opts;
 }
 
-- 
1.7.8.6