From: Hitendra Prajapati <[email protected]> Pick the patch from [1], also referenced in the NVD report [2].
[1] https://github.com/vim/vim/commit/05c41c922309c7a11b6ec2f124be66551c90d66a [2] https://nvd.nist.gov/vuln/detail/CVE-2026-73072 Signed-off-by: Hitendra Prajapati <[email protected]> Signed-off-by: Yoann Congal <[email protected]> --- .../vim/files/CVE-2026-73072.patch | 64 +++++++++++++++++++ meta/recipes-support/vim/vim.inc | 1 + 2 files changed, 65 insertions(+) create mode 100644 meta/recipes-support/vim/files/CVE-2026-73072.patch diff --git a/meta/recipes-support/vim/files/CVE-2026-73072.patch b/meta/recipes-support/vim/files/CVE-2026-73072.patch new file mode 100644 index 00000000000..0ae3b2b49e6 --- /dev/null +++ b/meta/recipes-support/vim/files/CVE-2026-73072.patch @@ -0,0 +1,64 @@ +From 05c41c922309c7a11b6ec2f124be66551c90d66a Mon Sep 17 00:00:00 2001 +From: Yasuhiro Matsumoto <[email protected]> +Date: Fri, 24 Jul 2026 00:58:37 +0900 +Subject: [PATCH] patch 9.2.0846: [security]: heap buffer overflow in + set_sofo() + +Problem: [security]: heap buffer overflow in set_sofo() + (Yazan Balawneh) +Solution: Reset sl_sal_first (Yasuhiro Matsumoto). + +A crafted spell file with an empty SN_SAL section before an SN_SOFO +section reaches set_sofo() with sl_sal_first[] already set to -1 by +set_sal_first(). The counting loop then under-counts colliding +multi-byte "from" characters, allocates an undersized list and writes +past its end. + +Github Security Advisory: +https://github.com/vim/vim/security/advisories/GHSA-9jqx-hgpr-6v64 + +Signed-off-by: Yasuhiro Matsumoto <[email protected]> +Signed-off-by: Christian Brabandt <[email protected]> + +CVE: CVE-2026-73072 +Upstream-Status: Backport [https://github.com/vim/vim/commit/05c41c922309c7a11b6ec2f124be66551c90d66a] +Signed-off-by: Hitendra Prajapati <[email protected]> +--- + src/spellfile.c | 4 +++- + src/testdir/test_spellfile.vim | 5 +++++ + 2 files changed, 8 insertions(+), 1 deletion(-) + +diff --git a/src/spellfile.c b/src/spellfile.c +index b3ee9c0d63..a9f7e83752 100644 +--- a/src/spellfile.c ++++ b/src/spellfile.c +@@ -1433,7 +1433,9 @@ set_sofo(slang_T *lp, char_u *from, char_u *to) + gap->ga_len = 256; + + // First count the number of items for each list. Temporarily use +- // sl_sal_first[] for this. ++ // sl_sal_first[] for this. Reset it first: a preceding SN_SAL section ++ // may have set the entries to -1 via set_sal_first(). ++ vim_memset(lp->sl_sal_first, 0, sizeof(salfirst_T) * 256); + for (p = from, s = to; *p != NUL && *s != NUL; ) + { + c = mb_cptr2char_adv(&p); +diff --git a/src/testdir/test_spellfile.vim b/src/testdir/test_spellfile.vim +index 3a93883b4d..0b0cf42066 100644 +--- a/src/testdir/test_spellfile.vim ++++ b/src/testdir/test_spellfile.vim +@@ -319,6 +319,11 @@ func Test_spellfile_format_error() + " SN_SOFO: multi-byte characters in sofofrom and sofoto + call Spellfile_Test(0z0600000000080002CF810002CF82FF000000000000000000000000, '') + ++ " SN_SAL (empty) followed by SN_SOFO with two multi-byte 'from' characters ++ " sharing the same low byte. A preceding SN_SAL poisons sl_sal_first[], so ++ " without a reset set_sofo() under-counts and writes out of bounds. ++ call Spellfile_Test(0z05000000000300000006000000000A0004CAABCEAB00024142FF000000000000000000000000, '') ++ + " SN_COMPOUND: compmax is less than 2 + call Spellfile_Test(0z08000000000101, 'E759:') + +-- +2.34.1 + diff --git a/meta/recipes-support/vim/vim.inc b/meta/recipes-support/vim/vim.inc index 1da47d92430..34d45079061 100644 --- a/meta/recipes-support/vim/vim.inc +++ b/meta/recipes-support/vim/vim.inc @@ -39,6 +39,7 @@ SRC_URI = "git://github.com/vim/vim.git;branch=master;protocol=https;tag=v${PV} file://CVE-2026-59856.patch \ file://CVE-2026-59857.patch \ file://CVE-2026-59858.patch \ + file://CVE-2026-73072.patch \ " PV .= ".0340"
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