From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Thu, 7 Dec 2023 10:36:57 +0000 (+0800)
Subject: crypto: api - Disallow identical driver names
X-Git-Tag: v6.6.15~293
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=b1a67a0d1ace6201777be0234b13d06f42a889af;p=thirdparty%2Fkernel%2Fstable.git

crypto: api - Disallow identical driver names

commit 27016f75f5ed47e2d8e0ca75a8ff1f40bc1a5e27 upstream.

Disallow registration of two algorithms with identical driver names.

Cc: <stable@vger.kernel.org>
Reported-by: Ovidiu Panait <ovidiu.panait@windriver.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/crypto/algapi.c b/crypto/algapi.c
index 4fe95c4480473..85bc279b4233f 100644
--- a/crypto/algapi.c
+++ b/crypto/algapi.c
@@ -341,6 +341,7 @@ __crypto_register_alg(struct crypto_alg *alg, struct list_head *algs_to_put)
 		}
 
 		if (!strcmp(q->cra_driver_name, alg->cra_name) ||
+		    !strcmp(q->cra_driver_name, alg->cra_driver_name) ||
 		    !strcmp(q->cra_name, alg->cra_driver_name))
 			goto err;
 	}