From patchwork Tue Dec 27 14:27:38 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Roberto Sassu X-Patchwork-Id: 13082363 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B5279C54E76 for ; Tue, 27 Dec 2022 14:28:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230267AbiL0O2p (ORCPT ); Tue, 27 Dec 2022 09:28:45 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44478 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229445AbiL0O2n (ORCPT ); Tue, 27 Dec 2022 09:28:43 -0500 Received: from frasgout13.his.huawei.com (frasgout13.his.huawei.com [14.137.139.46]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8277B6432; Tue, 27 Dec 2022 06:28:39 -0800 (PST) Received: from mail02.huawei.com (unknown [172.18.147.229]) by frasgout13.his.huawei.com (SkyGuard) with ESMTP id 4NhGzT0GwYz9xFGW; Tue, 27 Dec 2022 22:21:09 +0800 (CST) Received: from huaweicloud.com (unknown [10.204.63.22]) by APP2 (Coremail) with SMTP id GxC2BwAH3WP1AKtjzU5JAA--.42546S2; Tue, 27 Dec 2022 15:28:15 +0100 (CET) From: Roberto Sassu To: dhowells@redhat.com, herbert@gondor.apana.org.au, davem@davemloft.net, zohar@linux.ibm.com, dmitry.kasatkin@gmail.com, paul@paul-moore.com, jmorris@namei.org, serge@hallyn.com, ebiggers@kernel.org Cc: linux-integrity@vger.kernel.org, linux-security-module@vger.kernel.org, keyrings@vger.kernel.org, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org, Roberto Sassu Subject: [PATCH v5 0/2] KEYS: asymmetric: Copy sig and digest in public_key_verify_signature() Date: Tue, 27 Dec 2022 15:27:38 +0100 Message-Id: <20221227142740.2807136-1-roberto.sassu@huaweicloud.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-CM-TRANSID: GxC2BwAH3WP1AKtjzU5JAA--.42546S2 X-Coremail-Antispam: 1UD129KBjvdXoW7Gw1UGF4xAry5CFy7CFyfJFb_yoWfArcEkF y8KasrXF18XF1IyFy2yF1kKry2krWDGr18KF18trWxZry3Kw1aqrsrWFWFvrWUXrs8AayU Gr15XryfJr9FgjkaLaAFLSUrUUUUUb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUb7AYFVCjjxCrM7AC8VAFwI0_Xr0_Wr1l1xkIjI8I6I8E6xAIw20E Y4v20xvaj40_Wr0E3s1l1IIY67AEw4v_Jr0_Jr4l8cAvFVAK0II2c7xJM28CjxkF64kEwV A0rcxSw2x7M28EF7xvwVC0I7IYx2IY67AKxVWUJVWUCwA2z4x0Y4vE2Ix0cI8IcVCY1x02 67AKxVW8JVWxJwA2z4x0Y4vEx4A2jsIE14v26r4j6F4UM28EF7xvwVC2z280aVCY1x0267 AKxVW8JVW8Jr1le2I262IYc4CY6c8Ij28IcVAaY2xG8wAqx4xG64xvF2IEw4CE5I8CrVC2 j2WlYx0E2Ix0cI8IcVAFwI0_Jrv_JF1lYx0Ex4A2jsIE14v26r1j6r4UMcvjeVCFs4IE7x kEbVWUJVW8JwACjcxG0xvY0x0EwIxGrwACI402YVCY1x02628vn2kIc2xKxwCF04k20xvY 0x0EwIxGrwCFx2IqxVCFs4IE7xkEbVWUJVW8JwC20s026c02F40E14v26r1j6r18MI8I3I 0E7480Y4vE14v26r106r1rMI8E67AF67kF1VAFwI0_GFv_WrylIxkGc2Ij64vIr41lIxAI cVC0I7IYx2IY67AKxVWUJVWUCwCI42IY6xIIjxv20xvEc7CjxVAFwI0_Gr0_Cr1lIxAIcV CF04k26cxKx2IYs7xG6rW3Jr0E3s1lIxAIcVC2z280aVAFwI0_Jr0_Gr1lIxAIcVC2z280 aVCY1x0267AKxVW8JVW8JrUvcSsGvfC2KfnxnUUI43ZEXa7IU1rMa5UUUUU== X-CM-SenderInfo: purev21wro2thvvxqx5xdzvxpfor3voofrz/1tbiAQATBF1jj4cI0gADs5 X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: keyrings@vger.kernel.org From: Roberto Sassu Changelog: v4: - Replace sg_init_table()/sg_set_buf() with sg_init_one() (suggested by Eric) v3: v2: - Add patch by Herbert to take only the needed bytes for a MPI from the scatterlist - Use only one scatterlist for signature and digest (suggested by Eric) - Rename key variable to buf (suggested by Eric) - Rename key_max_len variable to buf_len - Use size_t for the buf_len variable instead of u32 v1: - Unconditionally copy the signature and digest to the buffer to keep the code simple (suggested by Eric) Herbert Xu (1): lib/mpi: Fix buffer overrun when SG is too long Roberto Sassu (1): KEYS: asymmetric: Copy sig and digest in public_key_verify_signature() crypto/asymmetric_keys/public_key.c | 38 ++++++++++++++++------------- lib/mpi/mpicoder.c | 3 ++- 2 files changed, 23 insertions(+), 18 deletions(-)