SELinux: fix memory leak in security_netlbl_cache_add()

Fix memory leak in security_netlbl_cache_add()
Note: The Coverity checker gets credit for spotting this one.

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: James Morris <jmorris@namei.org>
Acked-by:  Stephen Smalley <sds@tycho.nsa.gov>

diff --git a/security/selinux/ss/services.c b/security/selinux/ss/services.c
index b5f017f..0ae032f 100644 (file)
--- a/security/selinux/ss/services.c
+++ b/security/selinux/ss/services.c
@@ -2417,8 +2417,10 @@ static void security_netlbl_cache_add(struct netlbl_lsm_secattr *secattr,
 
        cache->type = NETLBL_CACHE_T_MLS;
        if (ebitmap_cpy(&cache->data.mls_label.level[0].cat,
-                       &ctx->range.level[0].cat) != 0)
+                       &ctx->range.level[0].cat) != 0) {
+               kfree(cache);
                return;
+       }
        cache->data.mls_label.level[1].cat.highbit =
                cache->data.mls_label.level[0].cat.highbit;
        cache->data.mls_label.level[1].cat.node =