From patchwork Tue Apr 7 10:13:17 2026 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hitendra Prajapati X-Patchwork-Id: 85416 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 9079AEDB7EE for ; Tue, 7 Apr 2026 10:20:13 +0000 (UTC) Received: from mail-dy1-f181.google.com (mail-dy1-f181.google.com [74.125.82.181]) by mx.groups.io with SMTP id smtpd.msgproc02-g2.78153.1775557211698282686 for ; Tue, 07 Apr 2026 03:20:11 -0700 Authentication-Results: mx.groups.io; dkim=pass header.i=@mvista.com header.s=google header.b=Ix8toP3r; spf=pass (domain: mvista.com, ip: 74.125.82.181, mailfrom: hprajapati@mvista.com) Received: by mail-dy1-f181.google.com with SMTP id 5a478bee46e88-2c56aa62931so10179252eec.0 for ; Tue, 07 Apr 2026 03:20:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mvista.com; s=google; t=1775557211; x=1776162011; darn=lists.openembedded.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=dUtWeil5xUX7EQtZX5Nhhlz2/ejajSSYrsZ2starSfQ=; b=Ix8toP3raunT4glHgSXusfQYNbmlgkoNi/5cx5+mrIXDd6E3bubqeAdg+9CNO5Su4+ SM3EUxg2SLeacgnTNJ3Z3WTfpJqtFaTb85MMVR3dKi9gfP+GB5ORNvOZcUEJzfxb7cJt C+kc8wbEwwWXh4Hkfish9l531vbBfJk5XTIT0= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1775557211; x=1776162011; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=dUtWeil5xUX7EQtZX5Nhhlz2/ejajSSYrsZ2starSfQ=; b=HlJM7MrOiN4zMsCpTYYOjIP9lhEq1CZ3Lmz6H3fcLHqv7Rdt0SNuUhZKnFQYAobA4r oJgRAryl/haMyFJmS/5ZPkv1apYxDD73ebaZ2eCGLKFnPH8KezNKffkZO2DaL9+fKdvx bMo4B8ws4tj2t3uetxOHpZbxdGfhGNCHxMsBPh6OfCPqRAfUC1ClOBT1V+DDMF2P72NN tAqiiW3kARsxP0+8b6vnR7twVVMhMTKlVKc8Jwgm2QA7ioDkIrQxjPkK5plaCBPeXWDN nGQ0Eln3l/eY3+vgG7zWKJv4P+VkmjBEThuzaXiif7C6m8koqtaMrzLL1kuz/C0qWT0B ilQQ== X-Gm-Message-State: AOJu0YwIFBIHXiRohAH+LkSOjUDO2rwImT/HfKpjVkDKg7CX4eyiFoUB qpsyff01wTRAW9W9Qw8vHuuZIV653Ea+9hEF/cWbWirnLm/hZOyTEnG9Z9S4x0FevypSMtG30oS 39mlrF6M= X-Gm-Gg: AeBDieuiZNb8qGuEI7ISDtPznj9nEdPzoSLHANNG61ecm6ITga75LpsC1zfVScVGIDZ fJs0uS6GDjLTrk+h2WY8Hwca1XAk1n2ixhncvVRp4Y02N5W/9W3QfI/70xiNZmHipLU+7bdnQky T9x8EtUG2OdSC5SpGZ2t/ZYYT9Uo5JzYLDQ+m9EFyfkVLy3+magIYpwlynl6uwCgQ0RNBbG/ROH ph345oh8LiQfuO2zNOLe1GXCPXGnF0zd1QXj584k3p+RSpMDfWfUcnX/2rUi9iLUxap8RZMSf7G 1M1/4aGJXJahS480MRkZ2b3RXxi1VULEHNYtVOtEDMKKcS5x5QECcZ7WtgtOedR89YiM8CI9JxC uzE2XmdDtyBk6PiDcDaC9yjYP02M0/4tAZhnbvXP1YPQORq3kq4MMKprmDtjtGCW8YiKXX0v+uv hrX5g9tw8VDGUx8MAzfk1NIsPSC6Z0fKWcpho3 X-Received: by 2002:a05:7300:a985:b0:2d1:299f:521a with SMTP id 5a478bee46e88-2d129a04688mr2552070eec.26.1775557210693; Tue, 07 Apr 2026 03:20:10 -0700 (PDT) Received: from MVIN00013.mvista.com ([152.59.5.113]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-2ca793ea2f2sm15349969eec.9.2026.04.07.03.20.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 07 Apr 2026 03:20:10 -0700 (PDT) From: Hitendra Prajapati To: openembedded-core@lists.openembedded.org Cc: Hitendra Prajapati Subject: [whinlatter][PATCH 2/2] vim: Fix CVE-2026-28419 Date: Tue, 7 Apr 2026 15:43:17 +0530 Message-ID: <20260407101318.62249-2-hprajapati@mvista.com> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20260407101318.62249-1-hprajapati@mvista.com> References: <20260407101318.62249-1-hprajapati@mvista.com> 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, 07 Apr 2026 10:20:13 -0000 X-Groupsio-URL: https://lists.openembedded.org/g/openembedded-core/message/234728 Pick patch from [1] also mentioned in [2] [1] https://github.com/vim/vim/commit/9b7dfa2948c9e1e5e32a5812812d580c7879f4a0 [2] https://nvd.nist.gov/vuln/detail/CVE-2026-28419 Signed-off-by: Hitendra Prajapati --- .../vim/files/CVE-2026-28419.patch | 86 +++++++++++++++++++ meta/recipes-support/vim/vim.inc | 1 + 2 files changed, 87 insertions(+) create mode 100644 meta/recipes-support/vim/files/CVE-2026-28419.patch diff --git a/meta/recipes-support/vim/files/CVE-2026-28419.patch b/meta/recipes-support/vim/files/CVE-2026-28419.patch new file mode 100644 index 0000000000..91100a7e91 --- /dev/null +++ b/meta/recipes-support/vim/files/CVE-2026-28419.patch @@ -0,0 +1,86 @@ +From 9b7dfa2948c9e1e5e32a5812812d580c7879f4a0 Mon Sep 17 00:00:00 2001 +From: Christian Brabandt +Date: Mon, 23 Feb 2026 19:35:25 +0000 +Subject: [PATCH] patch 9.2.0075: [security]: Buffer underflow with emacs tag + file + +Problem: When parsing a malformed Emacs-style tags file, a 1-byte + heap-buffer-underflow read occurs if the 0x7f delimiter + appears at the very beginning of a line. This happens + because the code attempts to scan backward for a tag + name from the delimiter without checking if space exists. + (ehdgks0627, un3xploitable) +Solution: Add a check to ensure the delimiter (p_7f) is not at the + start of the buffer (lbuf) before attempting to isolate + the tag name. + +GitHub Advisory: +https://github.com/vim/vim/security/advisories/GHSA-xcc8-r6c5-hvwv + +Signed-off-by: Christian Brabandt + + +CVE: CVE-2026-28419 +Upstream-Status: Backport [https://github.com/vim/vim/commit/9b7dfa2948c9e1e5e32a5812812d580c7879f4a0] +Signed-off-by: Hitendra Prajapati +--- + src/tag.c | 3 +++ + src/testdir/test_taglist.vim | 16 ++++++++++++++++ + src/version.c | 2 ++ + 3 files changed, 21 insertions(+) + +diff --git a/src/tag.c b/src/tag.c +index 45af67f20d..d3a73997bb 100644 +--- a/src/tag.c ++++ b/src/tag.c +@@ -2023,6 +2023,9 @@ etag_fail: + } + else // second format: isolate tagname + { ++ if (p_7f == lbuf) ++ goto etag_fail; ++ + // find end of tagname + for (p = p_7f - 1; !vim_iswordc(*p); --p) + if (p == lbuf) +diff --git a/src/testdir/test_taglist.vim b/src/testdir/test_taglist.vim +index 506e64f7ae..42ecc4b76e 100644 +--- a/src/testdir/test_taglist.vim ++++ b/src/testdir/test_taglist.vim +@@ -316,4 +316,20 @@ func Test_evil_emacs_tagfile() + set tags& + endfunc + ++" This used to crash Vim due to a heap-buffer-underflow ++func Test_emacs_tagfile_underflow() ++ CheckFeature emacs_tags ++ " The sequence from the crash artifact: ++ let lines = [ ++ \ "\x0c\xff\xffT\x19\x8a", ++ \ "\x19\x19\x0dtags\x19\x19\x19\x00\xff\xff\xff", ++ \ "\x7f3\x0c" ++ \ ] ++ call writefile(lines, 'Xtags', 'D') ++ set tags=Xtags ++ call assert_fails(':tag a', 'E431:') ++ ++ set tags& ++endfunc ++ + " vim: shiftwidth=2 sts=2 expandtab +diff --git a/src/version.c b/src/version.c +index 7d265ab641..4f47ec2688 100644 +--- a/src/version.c ++++ b/src/version.c +@@ -724,6 +724,8 @@ static char *(features[]) = + + static int included_patches[] = + { /* Add new patch number below this line */ ++/**/ ++ 1686, + /**/ + 1685, + /**/ +-- +2.50.1 + diff --git a/meta/recipes-support/vim/vim.inc b/meta/recipes-support/vim/vim.inc index 11200a0824..70d3dbf7d8 100644 --- a/meta/recipes-support/vim/vim.inc +++ b/meta/recipes-support/vim/vim.inc @@ -20,6 +20,7 @@ SRC_URI = "git://github.com/vim/vim.git;branch=master;protocol=https;tag=v${PV} file://CVE-2026-26269.patch \ file://CVE-2026-33412.patch \ file://CVE-2026-28418.patch \ + file://CVE-2026-28419.patch \ " PV .= ".1683"