[PATCH][SELinux] Let us not leak memory in SELinux : security_netlbl_cache_add()

[Jesper Juhl <jesper.juhl@gmail.com>]

Hi,

Leaking memory is a bad idea, so let's not do it, in 
security/selinux/ss/services.c::security_netlbl_cache_add().

Note: The Coverity checker gets credit for spotting this one.
Note: Patch has only been compile tested.


Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
---

 security/selinux/ss/services.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/security/selinux/ss/services.c b/security/selinux/ss/services.c
index b5f017f..0ae032f 100644
--- 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 =