From patchwork Wed Jul 29 09:38:18 2026 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: bhavesh.maheshwari@einfochips.com X-Patchwork-Id: 93853 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 6B424C54F51 for ; Wed, 29 Jul 2026 09:38:30 +0000 (UTC) Received: from naesa03.arrow.com (naesa03.arrow.com [216.150.161.23]) by mx.groups.io with SMTP id smtpd.msgproc02-g2.7646.1785317906607731683 for ; Wed, 29 Jul 2026 02:38:26 -0700 Authentication-Results: mx.groups.io; dkim=fail reason="dkim: message contains an insecure body length tag" header.i=@einfochips.com header.s=NAESA-Selector1 header.b=GapA9dyS; spf=pass (domain: einfochips.com, ip: 216.150.161.23, mailfrom: bhavesh.maheshwari@einfochips.com) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=einfochips.com; i=@einfochips.com; l=3878; q=dns/txt; s=NAESA-Selector1; t=1785317907; x=1816853907; h=from:to:subject:date:message-id:mime-version: content-transfer-encoding; bh=V5DK5ruoN7BznilX/T4UKWP/kOERYAhd0BF8vgobldk=; b=GapA9dySsEYOZQdvWrexnt5S+AG5NLcx86I0F7nHJo/JGwuDpus1nM4K fgiMLrem/fIXCdbeZjV3lNtF9NUGVJYJuR/rDMKizveIk8gGDHb/UJobA VwP2uqCOCHjEgirI4ddrcxsFYgs3GVZ457fR3jiKYbdMf4iX3shRUe6vQ sieKMYvYB7B8GrOiRYevzqNbQrkfBiZLMvEyaBvjQa7tcOwqiZr9n+XHJ wAnB+dpvRDF6dvmlH4BK83xSYDRhpolQJN9/CdhAlIyrdhZR/YJmPOXdh D11IWqba10VoyJ66g4lDvkzqsU94q4uZZVjUZbLb81uUG9aFAbGrvEFGa Q==; X-CSE-ConnectionGUID: +ebETTEMRdaIN3Gr33Z36w== X-CSE-MsgGUID: MXNXzLYqQCuk/3KZGIWI7w== X-IronPort-AV: E=Sophos;i="6.25,192,1779170400"; d="scan'208";a="118670178" Received: from unknown (HELO 6T8J9X2.ap.corp.arrow.com) ([10.126.22.168]) by naesa03out.arrow.com with ESMTP; 29 Jul 2026 03:38:25 -0600 From: bhavesh.maheshwari@einfochips.com To: openembedded-core@lists.openembedded.org Subject: [OE-Core][wrynose][PATCH] vim: Fix for CVE-2026-57455 Date: Wed, 29 Jul 2026 15:08:18 +0530 Message-ID: <20260729093822.1269853-1-bhavesh.maheshwari@einfochips.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 ; Wed, 29 Jul 2026 09:38:30 -0000 X-Groupsio-URL: https://lists.openembedded.org/g/openembedded-core/message/242267 From: Bhavesh R Maheshwari Pick patch from [1] also mentioned at NVD report in [2] [1] https://github.com/vim/vim/commit/497f931f85339d175d7f69588dd249e8ccfed41b [2] https://nvd.nist.gov/vuln/detail/CVE-2026-57455 Signed-off-by: Bhavesh R Maheshwari --- .../vim/files/CVE-2026-57455.patch | 77 +++++++++++++++++++ meta/recipes-support/vim/vim.inc | 1 + 2 files changed, 78 insertions(+) create mode 100644 meta/recipes-support/vim/files/CVE-2026-57455.patch diff --git a/meta/recipes-support/vim/files/CVE-2026-57455.patch b/meta/recipes-support/vim/files/CVE-2026-57455.patch new file mode 100644 index 0000000000..c87b069173 --- /dev/null +++ b/meta/recipes-support/vim/files/CVE-2026-57455.patch @@ -0,0 +1,77 @@ +From b4ed0eb9ed412eb769a13d50932978593b062623 Mon Sep 17 00:00:00 2001 +From: Christian Brabandt +Date: Sun, 21 Jun 2026 19:20:03 +0000 +Subject: [PATCH] patch 9.2.0698: [security]: Out-of-bounds write with + soundfold() + +Problem: [security]: Out-of-bounds write with soundfold() + (cipher-creator) +Solution: Add an abort condition to the for loop to validate the buffer + size. + +Github Security Advisory: +https://github.com/vim/vim/security/advisories/GHSA-q8mh-6qm3-25g4 + +Supported by AI + +Signed-off-by: Christian Brabandt + +CVE: CVE-2026-57455 +Upstream-Status: Backport [https://github.com/vim/vim/commit/497f931f85339d175d7f69588dd249e8ccfed41b] + +Backport Changes: +- Discarded the changes from src/version.c file as it includes patch +number + +Signed-off-by: Bhavesh R Maheshwari +--- + src/spell.c | 2 +- + src/testdir/test_spellfile.vim | 21 +++++++++++++++++++++ + 2 files changed, 22 insertions(+), 1 deletion(-) + +diff --git a/src/spell.c b/src/spell.c +index 01eb57e3a..060a2251a 100644 +--- a/src/spell.c ++++ b/src/spell.c +@@ -3270,7 +3270,7 @@ spell_soundfold_sofo(slang_T *slang, char_u *inword, char_u *res) + else + { + // The sl_sal_first[] table contains the translation. +- for (s = inword; (c = *s) != NUL; ++s) ++ for (s = inword; (c = *s) != NUL && ri < MAXWLEN - 1; ++s) + { + if (VIM_ISWHITE(c)) + c = ' '; +diff --git a/src/testdir/test_spellfile.vim b/src/testdir/test_spellfile.vim +index 8f3ef4907..b0b152b8c 100644 +--- a/src/testdir/test_spellfile.vim ++++ b/src/testdir/test_spellfile.vim +@@ -1197,4 +1197,25 @@ func Test_mkspell_no_buffer_overflow() + endfunc + + ++" A word longer than MAXWLEN must not overflow the soundfold result buffer in ++" the single-byte SOFO branch of spell_soundfold_sofo(). ++func Test_soundfold_overflow() ++ let _enc=&enc ++ set enc=latin1 ++ call writefile(['SOFOFROM ab', 'SOFOTO xy'], 'Xtest.aff', 'D') ++ call writefile(['1', 'foo'], 'Xtest.dic', 'D') ++ mkspell! Xtest Xtest ++ defer delete('Xtest.latin1.spl') ++ defer delete('Xtest.latin1.sug') ++ setl spelllang=Xtest.latin1.spl spell ++ ++ " Before the fix the copy loop wrote one byte per input byte into a ++ " MAXWLEN (254) stack buffer with no upper bound, smashing the stack. ++ let sound = soundfold(repeat('ab', 300)) ++ call assert_true(strlen(sound) < 254, 'soundfold result exceeds MAXWLEN') ++ ++ set spell& spelllang& ++ let &enc = _enc ++endfunc ++ + " vim: shiftwidth=2 sts=2 expandtab +-- +2.43.0 + diff --git a/meta/recipes-support/vim/vim.inc b/meta/recipes-support/vim/vim.inc index e34cc17fe5..402e39acff 100644 --- a/meta/recipes-support/vim/vim.inc +++ b/meta/recipes-support/vim/vim.inc @@ -23,6 +23,7 @@ SRC_URI = "git://github.com/vim/vim.git;branch=master;protocol=https;tag=v${PV} file://CVE-2026-52858.patch \ file://CVE-2026-52859.patch \ file://CVE-2026-52860.patch \ + file://CVE-2026-57455.patch \ " PV .= ".0340"