From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CB405C43460 for ; Mon, 17 May 2021 14:29:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id ADDC9613DF for ; Mon, 17 May 2021 14:29:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239448AbhEQOaR (ORCPT ); Mon, 17 May 2021 10:30:17 -0400 Received: from mail.kernel.org ([198.145.29.99]:52996 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237832AbhEQO0I (ORCPT ); Mon, 17 May 2021 10:26:08 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 5FFA061493; Mon, 17 May 2021 14:13:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1621260797; bh=XfB93B0iqSXfeJP3MGmy9gtOaMXAym7u33cGOrQejFY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=y4S3he/gBWGUwvH+1E0alzOkL6775QRYa5l7bDhCJ9UznZU6Du6tbMcI/lZWNWyXY B6CNKV35zFoA6xgrMeIYvPylaQX69zpDMdpVWjrrR7QXyGD6AS5paT6jwJJfScFlVh GtRBr6630KEub6QTkUvSLdijOMCtKrFGUzBhUjow= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jia-Ju Bai , TOTE Robot , Baoquan He , Andrew Morton , Linus Torvalds , Sasha Levin Subject: [PATCH 5.12 238/363] kernel: kexec_file: fix error return code of kexec_calculate_store_digests() Date: Mon, 17 May 2021 16:01:44 +0200 Message-Id: <20210517140310.634696732@linuxfoundation.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210517140302.508966430@linuxfoundation.org> References: <20210517140302.508966430@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Jia-Ju Bai [ Upstream commit 31d82c2c787d5cf65fedd35ebbc0c1bd95c1a679 ] When vzalloc() returns NULL to sha_regions, no error return code of kexec_calculate_store_digests() is assigned. To fix this bug, ret is assigned with -ENOMEM in this case. Link: https://lkml.kernel.org/r/20210309083904.24321-1-baijiaju1990@gmail.com Fixes: a43cac0d9dc2 ("kexec: split kexec_file syscall code to kexec_file.c") Signed-off-by: Jia-Ju Bai Reported-by: TOTE Robot Acked-by: Baoquan He Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds Signed-off-by: Sasha Levin --- kernel/kexec_file.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/kernel/kexec_file.c b/kernel/kexec_file.c index 5c3447cf7ad5..33400ff051a8 100644 --- a/kernel/kexec_file.c +++ b/kernel/kexec_file.c @@ -740,8 +740,10 @@ static int kexec_calculate_store_digests(struct kimage *image) sha_region_sz = KEXEC_SEGMENT_MAX * sizeof(struct kexec_sha_region); sha_regions = vzalloc(sha_region_sz); - if (!sha_regions) + if (!sha_regions) { + ret = -ENOMEM; goto out_free_desc; + } desc->tfm = tfm; -- 2.30.2