Always initialize scontext and scontext_len

Always initialize *scontext and *scontext_len in security_sid_to_context.

(via http://lkml.org/lkml/2007/2/23/135)

Signed-off-by:  Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: James Morris <jmorris@namei.org>

1 files changed, 3 insertions, 0 deletions

diff --git a/security/selinux/ss/services.c b/security/selinux/ss/services.c
index ca9154dc5d82..1e52356664d6 100644
--- a/security/selinux/ss/services.c
+++ b/security/selinux/ss/services.c
@@ -609,6 +609,9 @@ int security_sid_to_context(u32 sid, char **scontext, u32 *scontext_len)
         struct context *context;
         int rc = 0;
 
+        *scontext = NULL;
+        *scontext_len  = 0;
+
         if (!ss_initialized) {
                 if (sid <= SECINITSID_NUM) {
                         char *scontextp;