From patchwork Wed Feb 2 15:47:19 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sakib Sajal X-Patchwork-Id: 3206 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 aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8DB38C4321E for ; Wed, 2 Feb 2022 15:47:35 +0000 (UTC) Received: from mail1.wrs.com (mail1.wrs.com [147.11.3.146]) by mx.groups.io with SMTP id smtpd.web11.66128.1643816854011578685 for ; Wed, 02 Feb 2022 07:47:34 -0800 Authentication-Results: mx.groups.io; dkim=missing; spf=permerror, err=parse error for token &{10 18 %{ir}.%{v}.%{d}.spf.has.pphosted.com}: invalid domain name (domain: windriver.com, ip: 147.11.3.146, mailfrom: sakib.sajal@windriver.com) Received: from mail.windriver.com (mail.wrs.com [147.11.1.11]) by mail1.wrs.com (8.15.2/8.15.2) with ESMTPS id 212FlWCt024557 (version=TLSv1.1 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL) for ; Wed, 2 Feb 2022 07:47:33 -0800 Received: from ala-exchng01.corp.ad.wrs.com (ala-exchng01.corp.ad.wrs.com [147.11.82.252]) by mail.windriver.com (8.15.2/8.15.2) with ESMTPS id 212FlQXj023439 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Wed, 2 Feb 2022 07:47:32 -0800 (PST) Received: from ala-exchng01.corp.ad.wrs.com (147.11.82.252) by ala-exchng01.corp.ad.wrs.com (147.11.82.252) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2242.12; Wed, 2 Feb 2022 07:47:28 -0800 Received: from yow-lpggp3.wrs.com (128.224.137.13) by ala-exchng01.corp.ad.wrs.com (147.11.82.252) with Microsoft SMTP Server id 15.1.2242.12 via Frontend Transport; Wed, 2 Feb 2022 07:47:28 -0800 From: Sakib Sajal To: Subject: [hardknott][PATCH 7/8] qemu: fix CVE-2021-3930 Date: Wed, 2 Feb 2022 10:47:19 -0500 Message-ID: <20220202154720.18976-7-sakib.sajal@windriver.com> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20220202154720.18976-1-sakib.sajal@windriver.com> References: <20220202154720.18976-1-sakib.sajal@windriver.com> MIME-Version: 1.0 List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Wed, 02 Feb 2022 15:47:35 -0000 X-Groupsio-URL: https://lists.openembedded.org/g/openembedded-core/message/161211 Signed-off-by: Sakib Sajal --- meta/recipes-devtools/qemu/qemu.inc | 1 + .../qemu/qemu/CVE-2021-3930.patch | 53 +++++++++++++++++++ 2 files changed, 54 insertions(+) create mode 100644 meta/recipes-devtools/qemu/qemu/CVE-2021-3930.patch diff --git a/meta/recipes-devtools/qemu/qemu.inc b/meta/recipes-devtools/qemu/qemu.inc index 7648ce9a38..4a5379893c 100644 --- a/meta/recipes-devtools/qemu/qemu.inc +++ b/meta/recipes-devtools/qemu/qemu.inc @@ -79,6 +79,7 @@ SRC_URI = "https://download.qemu.org/${BPN}-${PV}.tar.xz \ file://CVE-2021-3594.patch \ file://CVE-2021-3713.patch \ file://CVE-2021-3748.patch \ + file://CVE-2021-3930.patch \ " UPSTREAM_CHECK_REGEX = "qemu-(?P\d+(\.\d+)+)\.tar" diff --git a/meta/recipes-devtools/qemu/qemu/CVE-2021-3930.patch b/meta/recipes-devtools/qemu/qemu/CVE-2021-3930.patch new file mode 100644 index 0000000000..bfbe5cee33 --- /dev/null +++ b/meta/recipes-devtools/qemu/qemu/CVE-2021-3930.patch @@ -0,0 +1,53 @@ +From cdca50eff9c38367be54f92839734ab490c8b0f7 Mon Sep 17 00:00:00 2001 +From: Mauro Matteo Cascella +Date: Thu, 4 Nov 2021 17:31:38 +0100 +Subject: [PATCH 10/12] hw/scsi/scsi-disk: MODE_PAGE_ALLS not allowed in MODE + SELECT commands + +This avoids an off-by-one read of 'mode_sense_valid' buffer in +hw/scsi/scsi-disk.c:mode_sense_page(). + +Fixes: CVE-2021-3930 +Cc: qemu-stable@nongnu.org +Reported-by: Alexander Bulekov +Fixes: a8f4bbe2900 ("scsi-disk: store valid mode pages in a table") +Fixes: #546 +Reported-by: Qiuhao Li +Signed-off-by: Mauro Matteo Cascella +Signed-off-by: Paolo Bonzini + +Upstream-Status: Backport [b3af7fdf9cc537f8f0dd3e2423d83f5c99a457e8] +CVE: CVE-2021-3930 + +Signed-off-by: Sakib Sajal +--- + hw/scsi/scsi-disk.c | 6 ++++++ + 1 file changed, 6 insertions(+) + +diff --git a/hw/scsi/scsi-disk.c b/hw/scsi/scsi-disk.c +index 90841ad79..5b44ed7d8 100644 +--- a/hw/scsi/scsi-disk.c ++++ b/hw/scsi/scsi-disk.c +@@ -1100,6 +1100,7 @@ static int mode_sense_page(SCSIDiskState *s, int page, uint8_t **p_outbuf, + uint8_t *p = *p_outbuf + 2; + int length; + ++ assert(page < ARRAY_SIZE(mode_sense_valid)); + if ((mode_sense_valid[page] & (1 << s->qdev.type)) == 0) { + return -1; + } +@@ -1441,6 +1442,11 @@ static int scsi_disk_check_mode_select(SCSIDiskState *s, int page, + return -1; + } + ++ /* MODE_PAGE_ALLS is only valid for MODE SENSE commands */ ++ if (page == MODE_PAGE_ALLS) { ++ return -1; ++ } ++ + p = mode_current; + memset(mode_current, 0, inlen + 2); + len = mode_sense_page(s, page, &p, 0); +-- +2.31.1 +