From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:37084 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752986AbeDFNmo (ORCPT ); Fri, 6 Apr 2018 09:42:44 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Dan Carpenter , Herbert Xu Subject: [PATCH 4.15 49/72] crypto: lrw - Free rctx->ext with kzfree Date: Fri, 6 Apr 2018 15:24:24 +0200 Message-Id: <20180406084352.938710449@linuxfoundation.org> In-Reply-To: <20180406084349.367583460@linuxfoundation.org> References: <20180406084349.367583460@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: stable-owner@vger.kernel.org List-ID: 4.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Herbert Xu commit 8c9bdab21289c211ca1ca6a5f9b7537b4a600a02 upstream. The buffer rctx->ext contains potentially sensitive data and should be freed with kzfree. Cc: Fixes: 700cb3f5fe75 ("crypto: lrw - Convert to skcipher") Reported-by: Dan Carpenter Signed-off-by: Herbert Xu Signed-off-by: Greg Kroah-Hartman --- crypto/lrw.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/crypto/lrw.c +++ b/crypto/lrw.c @@ -313,7 +313,7 @@ static void exit_crypt(struct skcipher_r rctx->left = 0; if (rctx->ext) - kfree(rctx->ext); + kzfree(rctx->ext); } static int do_encrypt(struct skcipher_request *req, int err)