From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E109223BD; Tue, 23 Jan 2024 01:09:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705972186; cv=none; b=EsHZbXihOzOiLW+IT23viT+AIgkYilgRnM69ApaaEBr9PBxUOk+JcFdBE4MYOj4OvOssaTZW0UrM+jGQGQ2V64ug7+xvGfADy2BaGldQU7QAMBGNvFeCwqmZ8HOWgmj+sQT4IzeH+jE1r4BMFGw3NyGUu6y9LbdK8Fnsk1xb0dQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705972186; c=relaxed/simple; bh=lVaStt9n67MkAkIQqmflBTNcRfssoAbzq6Yp+SizIb4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=VQj8QaBzbKcs8F49TTBTk7lKheJL9POF+2FxzIn/QRYypzQpGG2hSK+g3g2lG17SUpy5aR+UVQ/oexscocCJ1Ay6wbmF1jtPRa/wBR4NYsGyQ71M+cku+ZO5fgmbMZO+O89ksxchqI1/THxkm5PUnnxwcVOnXYUo3ZYcK6mJCZo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=2V3mmZ0h; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="2V3mmZ0h" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9DD82C433A6; Tue, 23 Jan 2024 01:09:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1705972185; bh=lVaStt9n67MkAkIQqmflBTNcRfssoAbzq6Yp+SizIb4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=2V3mmZ0hzat4ox5X3awQ4kHIC2sGRCiZdItf2QDzlYVXKUL7syfy3yNyOWZT9s/xH BM2BSjTMbQatWlQ8dQ9Un26wXh5vs8RsM+wSVphtRnYJ0p+ndbFUCk3VC7kNx5Aqan hE0+S+CPqqsrdHT5WFhlwp+IbMGwib+gafqhuRAY= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Ovidiu Panait , Herbert Xu , Sasha Levin Subject: [PATCH 5.15 108/374] crypto: sahara - handle zero-length aes requests Date: Mon, 22 Jan 2024 15:56:04 -0800 Message-ID: <20240122235748.377521962@linuxfoundation.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240122235744.598274724@linuxfoundation.org> References: <20240122235744.598274724@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Ovidiu Panait [ Upstream commit d1d6351e37aac14b32a291731d0855996c459d11 ] In case of a zero-length input, exit gracefully from sahara_aes_crypt(). Fixes: 5de8875281e1 ("crypto: sahara - Add driver for SAHARA2 accelerator.") Signed-off-by: Ovidiu Panait Signed-off-by: Herbert Xu Signed-off-by: Sasha Levin --- drivers/crypto/sahara.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/crypto/sahara.c b/drivers/crypto/sahara.c index bbd2c6474b50..3229dd180d0c 100644 --- a/drivers/crypto/sahara.c +++ b/drivers/crypto/sahara.c @@ -677,6 +677,9 @@ static int sahara_aes_crypt(struct skcipher_request *req, unsigned long mode) struct sahara_dev *dev = dev_ptr; int err = 0; + if (!req->cryptlen) + return 0; + if (unlikely(ctx->keylen != AES_KEYSIZE_128)) return sahara_aes_fallback(req, mode); -- 2.43.0