crypto: lrw - Fix an error handling path in 'create()'
authorChristophe Jaillet <christophe.jaillet@wanadoo.fr>
Sun, 8 Oct 2017 09:39:49 +0000 (11:39 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 25 Dec 2017 13:26:25 +0000 (14:26 +0100)
[ Upstream commit 616129cc6e75fb4da6681c16c981fa82dfe5e4c7 ]

All error handling paths 'goto err_drop_spawn' except this one.
In order to avoid some resources leak, we should do it as well here.

Fixes: 700cb3f5fe75 ("crypto: lrw - Convert to skcipher")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
crypto/lrw.c

index a8bfae4..eb681e9 100644 (file)
@@ -610,8 +610,10 @@ static int create(struct crypto_template *tmpl, struct rtattr **tb)
                ecb_name[len - 1] = 0;
 
                if (snprintf(inst->alg.base.cra_name, CRYPTO_MAX_ALG_NAME,
-                            "lrw(%s)", ecb_name) >= CRYPTO_MAX_ALG_NAME)
-                       return -ENAMETOOLONG;
+                            "lrw(%s)", ecb_name) >= CRYPTO_MAX_ALG_NAME) {
+                       err = -ENAMETOOLONG;
+                       goto err_drop_spawn;
+               }
        }
 
        inst->alg.base.cra_flags = alg->base.cra_flags & CRYPTO_ALG_ASYNC;