From patchwork Tue Aug 18 09:19:43 2026 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vijay Anusuri X-Patchwork-Id: 95596 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 8A7DFC5DF70 for ; Tue, 18 Aug 2026 09:20:00 +0000 (UTC) Received: from mail-pj1-f48.google.com (mail-pj1-f48.google.com [209.85.216.48]) by mx.groups.io with SMTP id smtpd.msgproc02-g2.4726.1787044794399379818 for ; Tue, 18 Aug 2026 02:19:54 -0700 Authentication-Results: mx.groups.io; dkim=pass header.i=@mvista.com header.s=google header.b=KhLQmt+U; spf=pass (domain: mvista.com, ip: 209.85.216.48, mailfrom: vanusuri@mvista.com) Received: by mail-pj1-f48.google.com with SMTP id 98e67ed59e1d1-38e347638adso5361456a91.0 for ; Tue, 18 Aug 2026 02:19:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mvista.com; s=google; t=1787044794; x=1787649594; darn=lists.openembedded.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to:content-type; bh=/y1xZx8YV2Sr815t2hkINywfrh/I7i5O9zjltAG/HxQ=; b=KhLQmt+UBV1jaNEwLOVPvnjo6jZwMFL42DNLcYEkeoaKVP4OhoBmOux0jepHvGeieq GRMS+2Vj3uHnkQ6WanblMUJbt5UZd3pzlqetRTe93lgEoDr38zXir4RACQZg38l/8qxE MXe65/tDsId02z6FxYKjX6pCto4Swyj3fMRmA= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1787044794; x=1787649594; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to:content-type; bh=/y1xZx8YV2Sr815t2hkINywfrh/I7i5O9zjltAG/HxQ=; b=EAi4a4ZBi5Q+QrqHYdXRaPFswdtS7NfjfxOvry9EDceO10mKIhZUoqyoqDA0IOT4yr fVJD4ovY1598IRH7Uj57x/yQ8ONQTSkC+QqLjJLulgshhXc1iF69HWKGR8lSoa9VNysU aJBm0/4raz7TaCgLOF3QFnDQY4GQbtOI4PsgoVltVtZVqriYGvuNJ0r2fNvmlLdKVxQm nzXw4j7LXmJPpmy+zFVsK6WFTsmz9ccKJEbsBZvJ11JXJdME7NXj4LyC7bsycychlAem aTIncOt6F6hAgKZoJ1gYpc4DR9yhwjt3gH0xWInvzrm/vzMNg38eYIFHUSku1NxRfqu6 py0A== X-Gm-Message-State: AOJu0YxZkY74ndG69Sv+ZGxS3uKFscbi4S2jfx/lU2ye5aPvCJle3Hwz 3v3adB8ZXPHlnE0WHvYGG6tmOLtRfFnccaGcsuIPGgHjS3Dr3Si5HMY8fheDR6h08D1OsFdaenZ 9AHNBmrI= X-Gm-Gg: AR+sD13pnj+p+wqZ9zigI+is7BUMcWo/ouA/wNwuplxLJwZoK1SEqGhDUgvilKSufcr Pf70t7Ks7nMSs6HX0qwl4Ww08RkCtUzG7mhcMD77YD+/yGmt3ZO1SQnC0wPz433tiIP8axBHyme lbH+FQkW3D2aq5UAXnTZMciuJWPjPVg/EB+H8GwIUHnvIJ6Rdt67wT6CUDGkWPyxV1C3y+wL8El TxjcKOZIW4u3YfP/DnA2DZH+RTL9o9GAqNLKNDrF9L64K6CbzEZ5S0jUXqQLkjF44XwTNvQvbyr 83QCnnFBNSCrmnZNTDhXBZ9LDnZQfeuXuzqrj5JXsEk8N2p+yJUuKRPQdrSvbYcpJJ4AC9zR1Pm ThmF9wpwpyjDmvIxAzUiBy89bzT3JraqyORpFDBP9RAx50EmhBu4DtZIpO94xB3sjkqoWiRqB8+ JGvOEF2Mxev1qekISOsON2ZDdjdJq/oGi7Obgfyu9RtACoE4RGDT8kYi/j30LtJFaUEesEmhSMI mycVsf+JF4cGXA= X-Received: by 2002:a17:90b:4d08:b0:37f:c22a:c188 with SMTP id 98e67ed59e1d1-3933b6f0622mr32621547a91.4.1787044793660; Tue, 18 Aug 2026 02:19:53 -0700 (PDT) Received: from MVIN00352.mvista.com ([2401:4900:1f29:777d:ea96:6c89:c935:111e]) by smtp.gmail.com with ESMTPSA id a92af1059eb24-14152ea340csm14079367c88.0.2026.08.18.02.19.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 18 Aug 2026 02:19:52 -0700 (PDT) From: Vijay Anusuri To: openembedded-devel@lists.openembedded.org Cc: Vijay Anusuri Subject: [oe][meta-oe][master][patch] giflib: Fix CVE-2026-26740 Date: Tue, 18 Aug 2026 14:49:43 +0530 Message-ID: <20260818091943.1172667-1-vanusuri@mvista.com> X-Mailer: git-send-email 2.43.0 MIME-Version: 1.0 List-Id: X-Webhook-Received: from 45-33-107-173.ip.linodeusercontent.com [45.33.107.173] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Tue, 18 Aug 2026 09:20:00 -0000 X-Groupsio-URL: https://lists.openembedded.org/g/openembedded-devel/message/129230 Pick patch according to [2] [1] https://nvd.nist.gov/vuln/detail/CVE-2026-26740 [2] https://ubuntu.com/security/CVE-2026-26740 Signed-off-by: Vijay Anusuri --- .../giflib/giflib/CVE-2026-26740.patch | 40 +++++++++++++++++++ .../recipes-devtools/giflib/giflib_6.1.3.bb | 1 + 2 files changed, 41 insertions(+) create mode 100644 meta-oe/recipes-devtools/giflib/giflib/CVE-2026-26740.patch diff --git a/meta-oe/recipes-devtools/giflib/giflib/CVE-2026-26740.patch b/meta-oe/recipes-devtools/giflib/giflib/CVE-2026-26740.patch new file mode 100644 index 0000000000..14ae97d23f --- /dev/null +++ b/meta-oe/recipes-devtools/giflib/giflib/CVE-2026-26740.patch @@ -0,0 +1,40 @@ +From 061605081115bbfd7019bafc119a13b6f17fcf25 Mon Sep 17 00:00:00 2001 +From: Anthony Hurtado +Date: Mon, 1 Jun 2026 15:40:48 -0500 +Subject: [PATCH] Fix CVE-2026-26740: heap OOB write in EGifGCBToSavedExtension + +EGifGCBToSavedExtension calls EGifGCBToExtension which unconditionally +writes 4 bytes into ep->Bytes without checking ep->ByteCount. If the +extension block was allocated with fewer than 4 bytes, this results in +a heap buffer overflow. + +The read-side counterpart DGifExtensionToGCB already validates that +GifExtensionLength == 4 before reading. Add the symmetric check on +the write side: return GIF_ERROR when ep->ByteCount < 4. + +Signed-off-by: Anthony Hurtado + +Upstream-Status: Backport [https://sourceforge.net/p/giflib/code/ci/061605081115bbfd7019bafc119a13b6f17fcf25] +CVE: CVE-2026-26740 +Signed-off-by: Vijay Anusuri +--- + egif_lib.c | 3 +++ + 1 file changed, 3 insertions(+) + +diff --git a/egif_lib.c b/egif_lib.c +index f1141a2..d74e8df 100644 +--- a/egif_lib.c ++++ b/egif_lib.c +@@ -690,6 +690,9 @@ int EGifGCBToSavedExtension(const GraphicsControlBlock *GCB, + ExtensionBlock *ep = + &GifFile->SavedImages[ImageIndex].ExtensionBlocks[i]; + if (ep->Function == GRAPHICS_EXT_FUNC_CODE) { ++ if (ep->ByteCount < 4) { ++ return GIF_ERROR; ++ } + EGifGCBToExtension(GCB, ep->Bytes); + return GIF_OK; + } +-- +2.43.0 + diff --git a/meta-oe/recipes-devtools/giflib/giflib_6.1.3.bb b/meta-oe/recipes-devtools/giflib/giflib_6.1.3.bb index 6add9d01ad..69dd46963c 100644 --- a/meta-oe/recipes-devtools/giflib/giflib_6.1.3.bb +++ b/meta-oe/recipes-devtools/giflib/giflib_6.1.3.bb @@ -9,6 +9,7 @@ DEPENDS = "xmlto-native" SRC_URI = "${SOURCEFORGE_MIRROR}/giflib/${BP}.tar.gz \ https://sourceforge.net/p/giflib/code/ci/d54b45b0240d455bbaedee4be5203d2703e59967/tree/doc/giflib-logo.gif?format=raw;subdir=${BP}/doc;name=logo;downloadfilename=giflib-logo.gif \ + file://CVE-2026-26740.patch \ " SRC_URI[logo.sha256sum] = "1a54383986adad1521d00e003b4c482c27e8bc60690be944a1f3319c75abc2c9"