From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Fri, 23 Mar 2018 00:14:44 +0000 (+0800)
Subject: crypto: lrw - Free rctx->ext with kzfree
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=8c9bdab21289c211ca1ca6a5f9b7537b4a600a02;p=linux.git

crypto: lrw - Free rctx->ext with kzfree

The buffer rctx->ext contains potentially sensitive data and should
be freed with kzfree.

Cc: <stable@vger.kernel.org>
Fixes: 700cb3f5fe75 ("crypto: lrw - Convert to skcipher")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---

diff --git a/crypto/lrw.c b/crypto/lrw.c
index a09cdaa6ddf3b..954a7064a179d 100644
--- a/crypto/lrw.c
+++ b/crypto/lrw.c
@@ -317,7 +317,7 @@ static void exit_crypt(struct skcipher_request *req)
 	rctx->left = 0;
 
 	if (rctx->ext)
-		kfree(rctx->ext);
+		kzfree(rctx->ext);
 }
 
 static int do_encrypt(struct skcipher_request *req, int err)