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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 4716DC3DA6E for ; Wed, 20 Dec 2023 05:59:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject:Cc :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=5lDNpxbBg3AZ5HGcM/cj95c9pIuYaunGcWBVVr+ZG7U=; b=qrhz9/sSU5eSAR qk3phfkDFNV7CQyhh9UHjB0nNIsTZSwCPABNTv9dVaMcNk8BNH7MEQDv1gxjM0xWkiBJKk0QkFp6n L2iBkeFexKkHKxCvSM1ZsYpSUSLlN0zG2ygjOapUuGJ5lWVhm/AOyqEeuM99gmNeT2CVOylsnZhD+ tI1ZtwO9uoCodsfJe5AJoNacRuhCiHmSoYZ3Ow07QBE2HTdqzlyPAC0n6KBH5J2qxnyHrbJs+NAz3 mDrdkbr8esQmKoNd/kic2AYyzGw7oaqwm7k3Aguf3GJdetIsNOrFjGtpclbQfDcTcd/8dvK2z+f64 LRB8qYh5VasANBTMIsTQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1rFpc4-00GEhW-15; Wed, 20 Dec 2023 05:59:24 +0000 Received: from mail-m12789.qiye.163.com ([115.236.127.89]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1rFpc1-00GEgQ-1A for kexec@lists.infradead.org; Wed, 20 Dec 2023 05:59:23 +0000 Received: from fedora.. (unknown [211.103.144.18]) by smtp.qiye.163.com (Hmail) with ESMTPA id 7353926010E; Wed, 20 Dec 2023 13:57:40 +0800 (CST) From: fuqiang wang To: Baoquan He , Vivek Goyal , Dave Young , Yuntao Wang Cc: kexec@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 0/2] kexec: fix potential cmem->ranges out of bounds Date: Wed, 20 Dec 2023 13:57:30 +0800 Message-ID: <20231220055733.100325-1-fuqiang.wang@easystack.cn> X-Mailer: git-send-email 2.42.0 MIME-Version: 1.0 X-HM-Spam-Status: e1kfGhgUHx5ZQUpXWQgPGg8OCBgUHx5ZQUlOS1dZFg8aDwILHllBWSg2Ly tZV1koWUFJQjdXWS1ZQUlXWQ8JGhUIEh9ZQVkaSxgfVkhLShoZSRkZTR1IGlUZERMWGhIXJBQOD1 lXWRgSC1lBWUlKSlVKS0hVSk9PVUpDWVdZFhoPEhUdFFlBWU9LSFVKSktISkNVSktLVUtZBg++ X-HM-Tid: 0a8c85cd1f610276kunm7353926010e X-HM-MType: 1 X-HM-Sender-Digest: e1kMHhlZQR0aFwgeV1kSHx4VD1lBWUc6NBw6Qgw4VjE*SlEcDAwDCw4M MRYwC0NVSlVKTEtIS05KQ01JTEtCVTMWGhIXVR0OChIaFRxVDBoVHDseGggCCA8aGBBVGBVFWVdZ EgtZQVlJSkpVSktIVUpPT1VKQ1lXWQgBWUFJSk1ONwY+ X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231219_215921_568333_19730951 X-CRM114-Status: UNSURE ( 7.34 ) X-CRM114-Notice: Please train this message. X-BeenThere: kexec@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "kexec" Errors-To: kexec-bounces+kexec=archiver.kernel.org@lists.infradead.org This series tries to fix the potential cmem->ranges out of bounds. On the v1 version, there are still some issues that need to be discussed, as follows: 1) Whether we need have the cmem->ranges[] partly changed, or keep it unchanged when OOB happened. Previously discussed link:[1]. 2) Set cmem->max_nr_ranges in crash_setup_memmap_entries() to 1 or 2. Previously discussed link:[2]. 3) To enhance crash_setup_memmap_entries() readability, how to move code. Previously discussed link:[2]. v2: - Fix potential out of bounds in crash_setup_memmap_entries(). - Add a comment in fill_up_crash_elf_data() to explain why the array size do not need to be changed. v1: Link: https://lore.kernel.org/all/20231127025641.62210-1-fuqiang.wang@easystack.cn/ [1]: https://lore.kernel.org/all/ZXrY7QbXAlxydsSC@MiWiFi-R3L-srv/ [2]: https://lore.kernel.org/all/273284e8-7680-4f5f-8065-c5d780987e59@easystack.cn/ fuqiang wang (2): x86/kexec: Fix potential out of bounds in crash_setup_memmap_entries() kexec: Fix potential out of bounds in crash_exclude_mem_range() arch/x86/kernel/crash.c | 20 ++++++++++++++------ kernel/crash_core.c | 7 +++---- 2 files changed, 17 insertions(+), 10 deletions(-) -- 2.42.0 _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec