From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AIpwx48Y0fZkaKgYjKipowEiQ6oljV2MSZMCwFA7zTP54xfjqBCn0fO/69kEQwilbertbobG+iS6 ARC-Seal: i=1; a=rsa-sha256; t=1523022164; cv=none; d=google.com; s=arc-20160816; b=wVkePhacIRQydH5niORNsBFPQepjEOcAMjBkXP69cnm7D4J6hwXTfVivKtAaFQM1y3 +KsE/vKi8sN/O5MnQdybb9VBby5yvsKREHe79p2rxP3qR5NGJirdYSVG75/nPq2fi/io VDZohmo3E5j6XAMoYeLpFMd+LzhnotZsV4c52BhjuZPUF5UZMd9aBYiajMmzSLwMY/uw +tqj/63g8pPtfVccwpmc4VoNCHdeIWUcUiBhziSqU+kSQp+VyQKS6d1xAGTR47H68xzt HQcS6GpZW7iQ0z9aojQbnAqnDY6xu1u3y3D/8A+atILPf3X3a3lUGsC47E50kgl0H5T0 3rWA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=mime-version:user-agent:references:in-reply-to:message-id:date :subject:cc:to:from:arc-authentication-results; bh=KxvO5QK6933giULWSUY/koDaiSTkF+EKl26C+o4kJzg=; b=hV2hL0vlBPlnMdL2hAdQTXjKIlFNJPToxdG8huMObO7NMG6NrafRydhYGyls/Q4mE/ pO9UiMvn9ztPxHBAqtv2TD9k6LlQJvycLGgjRPAffRveh3NSaktSNzZ7ddsNg0DP+h2M TYhvpJbilE4kS9adVz5EHpdKi+GSI+Fgu8P8j4QNxmIn351QICkfIxxr6dM99lVWsng6 GJIL/yZFnKLH2W/abIPeYao85Y7tkOWyttObMnZxYGmNFWUIBp6D6ey71qVGGP15XWEh 1L673iTLfCoY1r43EQbpqi7PjSujgU5nLdXLIw5EsISYXrd8nR/XeIslhKZ5QTwEajoq PGbw== ARC-Authentication-Results: i=1; mx.google.com; spf=softfail (google.com: domain of transitioning gregkh@linuxfoundation.org does not designate 90.92.61.202 as permitted sender) smtp.mailfrom=gregkh@linuxfoundation.org Authentication-Results: mx.google.com; spf=softfail (google.com: domain of transitioning gregkh@linuxfoundation.org does not designate 90.92.61.202 as permitted sender) smtp.mailfrom=gregkh@linuxfoundation.org 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> X-Mailer: git-send-email 2.17.0 In-Reply-To: <20180406084349.367583460@linuxfoundation.org> References: <20180406084349.367583460@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-LABELS: =?utf-8?b?IlxcU2VudCI=?= X-GMAIL-THRID: =?utf-8?q?1597004267731189000?= X-GMAIL-MSGID: =?utf-8?q?1597004489012008789?= X-Mailing-List: linux-kernel@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)