From patchwork Mon Nov 7 18:02:04 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ross Burton X-Patchwork-Id: 15151 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 1B33EC433FE for ; Mon, 7 Nov 2022 18:02:12 +0000 (UTC) Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by mx.groups.io with SMTP id smtpd.web11.1108.1667844128410901194 for ; Mon, 07 Nov 2022 10:02:08 -0800 Authentication-Results: mx.groups.io; dkim=missing; spf=pass (domain: arm.com, ip: 217.140.110.172, mailfrom: ross.burton@arm.com) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 055AC1FB; Mon, 7 Nov 2022 10:02:14 -0800 (PST) Received: from oss-tx204.lab.cambridge.arm.com (usa-sjc-imap-foss1.foss.arm.com [10.121.207.14]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 6891D3F534; Mon, 7 Nov 2022 10:02:07 -0800 (PST) From: Ross Burton To: openembedded-core@lists.openembedded.org Cc: nd@arm.com Subject: [PATCH][langdale 1/2] pixman: backport fix for CVE-2022-44638 Date: Mon, 7 Nov 2022 18:02:04 +0000 Message-Id: <20221107180205.2838225-1-ross.burton@arm.com> X-Mailer: git-send-email 2.34.1 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 ; Mon, 07 Nov 2022 18:02:12 -0000 X-Groupsio-URL: https://lists.openembedded.org/g/openembedded-core/message/172926 Signed-off-by: Ross Burton --- .../xorg-lib/pixman/CVE-2022-44638.patch | 33 +++++++++++++++++++ .../xorg-lib/pixman_0.40.0.bb | 1 + 2 files changed, 34 insertions(+) create mode 100644 meta/recipes-graphics/xorg-lib/pixman/CVE-2022-44638.patch diff --git a/meta/recipes-graphics/xorg-lib/pixman/CVE-2022-44638.patch b/meta/recipes-graphics/xorg-lib/pixman/CVE-2022-44638.patch new file mode 100644 index 00000000000..d226766d49a --- /dev/null +++ b/meta/recipes-graphics/xorg-lib/pixman/CVE-2022-44638.patch @@ -0,0 +1,33 @@ +CVE: CVE-2022-44638 +Upstream-Status: Backport +Signed-off-by: Ross Burton + +From a1f88e842e0216a5b4df1ab023caebe33c101395 Mon Sep 17 00:00:00 2001 +From: Matt Turner +Date: Wed, 2 Nov 2022 12:07:32 -0400 +Subject: [PATCH] Avoid integer overflow leading to out-of-bounds write + +Thanks to Maddie Stone and Google's Project Zero for discovering this +issue, providing a proof-of-concept, and a great analysis. + +Closes: https://gitlab.freedesktop.org/pixman/pixman/-/issues/63 +--- + pixman/pixman-trap.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/pixman/pixman-trap.c b/pixman/pixman-trap.c +index 91766fd..7560405 100644 +--- a/pixman/pixman-trap.c ++++ b/pixman/pixman-trap.c +@@ -74,7 +74,7 @@ pixman_sample_floor_y (pixman_fixed_t y, + + if (f < Y_FRAC_FIRST (n)) + { +- if (pixman_fixed_to_int (i) == 0x8000) ++ if (pixman_fixed_to_int (i) == 0xffff8000) + { + f = 0; /* saturate */ + } +-- +GitLab + diff --git a/meta/recipes-graphics/xorg-lib/pixman_0.40.0.bb b/meta/recipes-graphics/xorg-lib/pixman_0.40.0.bb index ccfe2777466..c56733eefd6 100644 --- a/meta/recipes-graphics/xorg-lib/pixman_0.40.0.bb +++ b/meta/recipes-graphics/xorg-lib/pixman_0.40.0.bb @@ -9,6 +9,7 @@ DEPENDS = "zlib" SRC_URI = "https://www.cairographics.org/releases/${BP}.tar.gz \ file://0001-ARM-qemu-related-workarounds-in-cpu-features-detecti.patch \ + file://CVE-2022-44638.patch \ " SRC_URI[md5sum] = "73858c0862dd9896fb5f62ae267084a4" SRC_URI[sha256sum] = "6d200dec3740d9ec4ec8d1180e25779c00bc749f94278c8b9021f5534db223fc"