From: Christophe Jaillet <christophe.jaillet@wanadoo.fr>
Date: Sun, 8 Oct 2017 09:39:50 +0000 (+0200)
Subject: crypto: lrw - Check for incorrect cipher name
X-Git-Tag: v4.15-rc1~139^2~109
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=d38efad2bf1c27fcb375dee9ac8c5c99e02ab38c;p=thirdparty%2Flinux.git

crypto: lrw - Check for incorrect cipher name

If the cipher name does not start with 'ecb(' we should bail out, as done
in the 'create()' function in 'crypto/xts.c'.

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>
---

diff --git a/crypto/lrw.c b/crypto/lrw.c
index eb681e9fe5743..92df312b8c6e2 100644
--- a/crypto/lrw.c
+++ b/crypto/lrw.c
@@ -614,7 +614,8 @@ static int create(struct crypto_template *tmpl, struct rtattr **tb)
 			err = -ENAMETOOLONG;
 			goto err_drop_spawn;
 		}
-	}
+	} else
+		goto err_drop_spawn;
 
 	inst->alg.base.cra_flags = alg->base.cra_flags & CRYPTO_ALG_ASYNC;
 	inst->alg.base.cra_priority = alg->base.cra_priority;