From patchwork Wed Sep 2 05:25:35 2026 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yoann Congal X-Patchwork-Id: 97007 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 7D57CC624D6 for ; Wed, 2 Sep 2026 05:27:08 +0000 (UTC) Received: from mail-wm1-f52.google.com (mail-wm1-f52.google.com [209.85.128.52]) by mx.groups.io with SMTP id smtpd.msgproc01-g2.5674.1788326824513873943 for ; Tue, 01 Sep 2026 22:27:04 -0700 Authentication-Results: mx.groups.io; dkim=pass header.i=@smile.fr header.s=google header.b=C8OlTaaP; spf=pass (domain: smile.fr, ip: 209.85.128.52, mailfrom: yoann.congal@smile.fr) Received: by mail-wm1-f52.google.com with SMTP id 5b1f17b1804b1-49b0dd3c9a0so3919735e9.1 for ; Tue, 01 Sep 2026 22:27:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=smile.fr; s=google; t=1788326823; x=1788931623; darn=lists.openembedded.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:from:to:cc:subject:date:message-id :reply-to:content-type; bh=d3SVAbhrqenkv1Ww5+v4UVLAjfI5Z3wOzn72hFwCk6g=; b=C8OlTaaPhaHNPJE2iH40Vp6z4bInxbwEkgy77mO+JDHXgPAAgS3ues4IEnRtfy1P2b +y+inMpY5kdUi3nG8T4FMNl8m/g368Pb0JULj6FFlikghU+ck9y8tZ3qVpzzKcIDvx2e bmM0Y9w9laX8CBphyw7ASl814jfHlufEn14Pw= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1788326823; x=1788931623; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:x-gm-gg:x-gm-message-state:from:to :cc:subject:date:message-id:reply-to:content-type; bh=d3SVAbhrqenkv1Ww5+v4UVLAjfI5Z3wOzn72hFwCk6g=; b=Q2U1lUwQPxP2J/SKmutejKzEosuCwog0D7qBF/9fsKaO504WDt7WMYM7+++U/mtspW fhB6U/tLXfvmXhFp4uFoHEVobWYm2hTjzDmLkGf6esMhHGnxjwCzKOZzutV3uIjZLqtM lScA2lIO8ocZZ099l809heJcKHwjTqQlUAv4GvNXXnGxw8M4OrwkbgYXCmdUZIYnpE2D nRd3TPRWRZr/uzUSQUbrA8/X1VZM35lxQk0HA76kGSRaoKy4TEVxED2fRpZup68ogiLN HRuIw8vg8tQVhYsQyH5VDuJI+C5McSw41TVxxckMs2KvOoRdyUAZf7QZuCIZGNG0Aod3 3PtA== X-Gm-Message-State: AFuF++lsk/zkVYUHB2u0YeTJsWeXsJcevugkbsonFPRQzDEMelvVWjBE pFBodK6+HlLAR6hdc0zrZEypo5MdU55ied6Js9wuCmeZLW5WidiogvPivDd4I8YLDRwcAi7hIHw lTh73VLs= X-Gm-Gg: AR+sD125/FYDYaQ3Nw7+5fAmI3bjhBLZ6TNrsebq6NMMOu565b2+3iTc1GZQd/X6GQ5 /fEU3zGLqA07aPbxFNKmma/aZO8MiOiVaVkhI8lqRD4U8J9Bsaqc8g2MLfg3fSXfGAFF6ttcMhW CbCO8X2apaoUN9ylMFRzhjJnWKcm/evqHsw/0jtyqDqh7JEZWJqNdTHmMsn8QgbWswS+JHQpV+E U8bA8SWtj9NXSLUplsalU9/Qvz+LWgJXeZG6/3EiyQN1FS4yj4XS3EryZ5f5mr2P6hyRVoPiCl2 2W+cP1MxMxKtO6RBKtFaS8QpKWSpXvFrCIglRMVyn3WlGYSOxA3gEbPnSfh6b3vsTEzZJzrTeta V7ZwtrLPFjyPO8U8/908ptuYrl72q0uK0V22QW9iQJwkEKY6zedXo/JPaEYDLCldn9JybWD3Nfx gWHDWZdvTWwrQj5pcYfSuSFzZF2rmjw8DllBxj3TuTBZhLjrLW0ruDnAkfEkSsRqU2TaqEegynw HpW0yfsSJaxwCAbiO4= X-Received: by 2002:a05:600c:1913:b0:49c:e3c3:5efd with SMTP id 5b1f17b1804b1-49ce583d6ecmr28979605e9.9.1788326822642; Tue, 01 Sep 2026 22:27:02 -0700 (PDT) Received: from FRSMI25-LASER.wifi-gare.sncf.com ([148.169.40.19]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-49ce4780f0dsm37084695e9.12.2026.09.01.22.27.01 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 01 Sep 2026 22:27:02 -0700 (PDT) From: Yoann Congal To: openembedded-core@lists.openembedded.org Subject: [OE-core][scarthgap 18/27] vim: Security Fix for CVE-2026-55892 Date: Wed, 2 Sep 2026 07:25:35 +0200 Message-ID: X-Mailer: git-send-email 2.47.3 In-Reply-To: References: 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, 02 Sep 2026 05:27:08 -0000 X-Groupsio-URL: https://lists.openembedded.org/g/openembedded-core/message/244869 From: Siddharth Doshi Picking patch as per [1], and same patch is mentioned in [2] References: [1] https://nvd.nist.gov/vuln/detail/CVE-2026-55892 [2] https://security-tracker.debian.org/tracker/CVE-2026-55892 Signed-off-by: Siddharth Doshi Signed-off-by: Yoann Congal --- .../vim/files/CVE-2026-55892.patch | 81 +++++++++++++++++++ meta/recipes-support/vim/vim.inc | 1 + 2 files changed, 82 insertions(+) create mode 100644 meta/recipes-support/vim/files/CVE-2026-55892.patch diff --git a/meta/recipes-support/vim/files/CVE-2026-55892.patch b/meta/recipes-support/vim/files/CVE-2026-55892.patch new file mode 100644 index 00000000000..5f46c97cfa3 --- /dev/null +++ b/meta/recipes-support/vim/files/CVE-2026-55892.patch @@ -0,0 +1,81 @@ +From f0df4a48a426bd67c0c2f5ad536000a4368cd4c0 Mon Sep 17 00:00:00 2001 +From: Yasuhiro Matsumoto +Date: Tue, 16 Jun 2026 20:32:21 +0000 +Subject: [PATCH 10/17] patch 9.2.0662: [security] Stack out-of-bounds write in + dump_prefixes() + +Problem: [security]: a crafted spell file with a self-referential + BY_INDEX node in the prefix tree can drive dump_prefixes() + past the end of its MAXWLEN-sized depth arrays on :spelldump + (cipher-creator) +Solution: only descend while depth < MAXWLEN - 1, as the sibling trie + walkers already do (Yasuhiro Matsumoto) + +Github Security Advisory: +https://github.com/vim/vim/security/advisories/GHSA-qm9w-fmpj-879h + +Supported by AI + +Signed-off-by: Yasuhiro Matsumoto +Signed-off-by: Christian Brabandt + +Upstream-Status: Backport [https://github.com/vim/vim/commit/8325b193bba5f01e7a7d8241fc8633d93dff996b] +CVE: CVE-2026-55892 +Signed-off-by: Siddharth Doshi +--- + src/spell.c | 2 +- + src/testdir/test_spell.vim | 27 +++++++++++++++++++++++++++ + 2 files changed, 28 insertions(+), 1 deletion(-) + +diff --git a/src/spell.c b/src/spell.c +index 2281986435..6ef3fa899b 100644 +--- a/src/spell.c ++++ b/src/spell.c +@@ -4328,7 +4328,7 @@ dump_prefixes( + } + } + } +- else ++ else if (depth < MAXWLEN - 1) + { + // Normal char, go one level deeper. + prefix[depth++] = c; +diff --git a/src/testdir/test_spell.vim b/src/testdir/test_spell.vim +index 170ea57926..2a3f0e3696 100644 +--- a/src/testdir/test_spell.vim ++++ b/src/testdir/test_spell.vim +@@ -1567,4 +1567,31 @@ let g:test_data_aff_sal = [ + \"SAL Z S", + \ ] + ++" A crafted .spl with a self-referential BY_INDEX node in the PREFIXTREE drove ++" dump_prefixes() past its MAXWLEN-sized depth arrays (stack out-of-bounds ++" write). The tree parses cleanly (shared refs aren't recursed); the walk ++" happens on :spelldump. Reaching the assert means no OOB. Same class as the ++" tree_count_words() fix (9.2.0653). ++func Test_spelldump_prefixtree_overflow() ++ CheckUnix ++ call mkdir('Xrtp/spell', 'pR') ++ " VIMspell + v50, SN_PREFCOND(prefixcnt=1), SN_END, ++ " LWORDTREE word "a" with affixID=1 (so dump_prefixes runs), ++ " empty KWORDTREE, PREFIXTREE child BY_INDEX -> nodeidx 0 (self-cycle), 'A' ++ let spl = eval('0z56494D7370656C6C32030000000003000100FF00000004' ++ \ .. '0161010220010000000000000002010100000041') ++ call writefile(spl, 'Xrtp/spell/xx.utf-8.spl', 'b') ++ ++ new ++ set runtimepath+=./Xrtp ++ set spelllang=xx ++ set spell ++ spelldump ++ call assert_true(line('$') > 1) ++ ++ set spell& spelllang& runtimepath& ++ bwipe! ++ bwipe! ++endfunc ++ + " vim: shiftwidth=2 sts=2 expandtab +-- +2.44.4 + diff --git a/meta/recipes-support/vim/vim.inc b/meta/recipes-support/vim/vim.inc index 248160a82c2..07f7b7dd16c 100644 --- a/meta/recipes-support/vim/vim.inc +++ b/meta/recipes-support/vim/vim.inc @@ -42,6 +42,7 @@ SRC_URI = "git://github.com/vim/vim.git;branch=master;protocol=https \ file://CVE-2026-47162.patch \ file://CVE-2026-47167.patch \ file://CVE-2026-55693.patch \ + file://CVE-2026-55892.patch \ " PV .= ".1683"