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 A7975253949; Mon, 23 Jun 2025 13:22:22 +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=1750684942; cv=none; b=umCR8M8nKWad8oAcQ1PgG9LM3NDGChwxfQkIykZZVla2dtgPpU54+LDxFv9cE9po9B8XUdNe2RVxm7xaEcO0g92NBM4sXfj1SGkfHjzcqZv558B7+/PZW0wPDoFBmZK3Wz62uv8MC2uDGT68h8XFL5ikLbHmT4oOE4djzKdLNFo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750684942; c=relaxed/simple; bh=syVV5lvlg6c2FdBomXdZUgj9RMgqVAEl5IBqiZmbM04=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=aB2GUre4E8chIQiKClEZgxDEVt6PNlTwSF86KHmvrlEiCLtf1juA04+VmNuxDRJTc99NaV5XeM7hwAHPPR/Kipa5CAWCCRfJFlM+gVrddzTfNHzgUF9/n7GLfIV8HPmhJy2mEbVm8J1vQPqgm3absBaVgOfBcF7zmMpCGgHc7es= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=VP5zi8Wa; 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="VP5zi8Wa" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 327D4C4CEEA; Mon, 23 Jun 2025 13:22:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1750684942; bh=syVV5lvlg6c2FdBomXdZUgj9RMgqVAEl5IBqiZmbM04=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=VP5zi8Wa1fK0trPemB6zaWtufPLoYXuI/BgZx8hlu//2vRXMmn1Z7ldB3Xd9o7mlH avTY0IrDAbYvnGX5t4iX5t1weTP7Wp9/quaZoaW/joUJPX2jl0g4SLXY4C1ZMbo6Vb 60vpXowgOD/Ub/NOZxIlTx00zAyevw0iB3HM/Jbg= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Herbert Xu , Sasha Levin Subject: [PATCH 5.10 014/355] crypto: marvell/cesa - Handle zero-length skcipher requests Date: Mon, 23 Jun 2025 15:03:35 +0200 Message-ID: <20250623130627.202187423@linuxfoundation.org> X-Mailer: git-send-email 2.50.0 In-Reply-To: <20250623130626.716971725@linuxfoundation.org> References: <20250623130626.716971725@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.10-stable review patch. If anyone has any objections, please let me know. ------------------ From: Herbert Xu [ Upstream commit 8a4e047c6cc07676f637608a9dd675349b5de0a7 ] Do not access random memory for zero-length skcipher requests. Just return 0. Fixes: f63601fd616a ("crypto: marvell/cesa - add a new driver for Marvell's CESA") Signed-off-by: Herbert Xu Signed-off-by: Sasha Levin --- drivers/crypto/marvell/cesa/cipher.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/crypto/marvell/cesa/cipher.c b/drivers/crypto/marvell/cesa/cipher.c index 8dc10f9988948..051a661a63eeb 100644 --- a/drivers/crypto/marvell/cesa/cipher.c +++ b/drivers/crypto/marvell/cesa/cipher.c @@ -449,6 +449,9 @@ static int mv_cesa_skcipher_queue_req(struct skcipher_request *req, struct mv_cesa_skcipher_req *creq = skcipher_request_ctx(req); struct mv_cesa_engine *engine; + if (!req->cryptlen) + return 0; + ret = mv_cesa_skcipher_req_init(req, tmpl); if (ret) return ret; -- 2.39.5