new file mode 100644
@@ -0,0 +1,101 @@
+From a9336b476fd1a182e3f79b5f83c0ffb04f8a922b Mon Sep 17 00:00:00 2001
+From: Yasuhiro Matsumoto <mattn.jp@gmail.com>
+Date: Thu, 23 Jul 2026 20:14:13 +0000
+Subject: [PATCH] patch 9.2.0841: [security]: heap overflow when adding > 65535
+ text properties
+
+Problem: [security]: heap overflow when adding > 65535 text properties
+ (Wang1rrr).
+Solution: Verify that the number of text properties falls within the
+ limit (Yasuhiro Matsumoto).
+
+Github Security Advisory:
+https://github.com/vim/vim/security/advisories/GHSA-hm4g-pjfx-m27j
+
+Signed-off-by: Yasuhiro Matsumoto <mattn.jp@gmail.com>
+Signed-off-by: Christian Brabandt <cb@256bit.org>
+
+CVE: CVE-2026-73074
+Upstream-Status: Backport [https://github.com/vim/vim/commit/a9336b476fd1a182e3f79b5f83c0ffb04f8a922b]
+Signed-off-by: Hitendra Prajapati <hprajapati@mvista.com>
+---
+ src/errors.h | 4 ++++
+ src/po/vim.pot | 3 +++
+ src/testdir/test_textprop.vim | 18 ++++++++++++++++++
+ src/textprop.c | 7 +++++++
+ 4 files changed, 32 insertions(+)
+
+diff --git a/src/errors.h b/src/errors.h
+index 01ed16a035..5354e85f25 100644
+--- a/src/errors.h
++++ b/src/errors.h
+@@ -3795,3 +3795,7 @@ EXTERN char e_socket_server_failed_connecting[]
+ EXTERN char e_socket_server_unavailable[]
+ INIT(= N_("E1567: Cannot start socket server, socket path is unavailable"));
+ #endif
++#ifdef FEAT_PROP_POPUP
++EXTERN char e_too_many_text_properties_on_a_single_line[]
++ INIT(= N_("E1580: Too many text properties on a single line"));
++#endif
+diff --git a/src/po/vim.pot b/src/po/vim.pot
+index be79cf0dab..100344e270 100644
+--- a/src/po/vim.pot
++++ b/src/po/vim.pot
+@@ -8838,6 +8838,9 @@ msgstr ""
+ msgid "E1567: Cannot start socket server, socket path is unavailable"
+ msgstr ""
+
++msgid "E1580: Too many text properties on a single line"
++msgstr ""
++
+ #. type of cmdline window or 0
+ #. result of cmdline window or 0
+ #. buffer of cmdline window or NULL
+diff --git a/src/testdir/test_textprop.vim b/src/testdir/test_textprop.vim
+index b5c9f63f65..5a69ca75e7 100644
+--- a/src/testdir/test_textprop.vim
++++ b/src/testdir/test_textprop.vim
+@@ -4781,4 +4781,22 @@ func Test_textprop_materialize_list()
+ call assert_equal([], prop_list(1, #{ids: 3->range()}))
+ endfunc
+
++" Adding more than 65535 text properties to one line must be rejected instead
++" of wrapping the uint16_t property count and overflowing the allocation.
++func Test_prop_add_over_uint16_max()
++ CheckNotAsan
++ CheckNotValgrind
++ new
++ call setline(1, 'x')
++ call prop_type_add('overflow', {})
++ for _ in range(0xffff)
++ call prop_add(1, 1, {'type': 'overflow', 'length': 0})
++ endfor
++ call assert_equal(0xffff, prop_list(1)->len())
++ call assert_fails("call prop_add(1, 1, {'type': 'overflow', 'length': 0})", 'E1580:')
++ call assert_equal(0xffff, prop_list(1)->len())
++ call prop_type_delete('overflow')
++ bwipe!
++endfunc
++
+ " vim: shiftwidth=2 sts=2 expandtab
+diff --git a/src/textprop.c b/src/textprop.c
+index a06605d3dd..1f06615dbc 100644
+--- a/src/textprop.c
++++ b/src/textprop.c
+@@ -240,6 +240,13 @@ prop_add_one(
+ proplen = get_text_props(buf, lnum, &props, TRUE);
+ textlen = buf->b_ml.ml_line_len - proplen * sizeof(textprop_T);
+
++ // prop_count is a uint16_t; stop before proplen + 1 wraps to zero.
++ if (proplen >= 0xffff)
++ {
++ emsg(_(e_too_many_text_properties_on_a_single_line));
++ goto theend;
++ }
++
+ if (lnum == start_lnum)
+ col = start_col;
+ else
+--
+2.50.1
+
@@ -53,6 +53,7 @@ SRC_URI = "git://github.com/vim/vim.git;branch=master;protocol=https \
file://CVE-2026-59858.patch \
file://CVE-2026-73072.patch \
file://CVE-2026-73073.patch \
+ file://CVE-2026-73074.patch \
"
PV .= ".1683"
Pick the patch from [1], also referenced in the NVD report [2]. [1] https://github.com/vim/vim/commit/a9336b476fd1a182e3f79b5f83c0ffb04f8a922b [2] https://nvd.nist.gov/vuln/detail/CVE-2026-73074 Signed-off-by: Hitendra Prajapati <hprajapati@mvista.com> --- .../vim/files/CVE-2026-73074.patch | 101 ++++++++++++++++++ meta/recipes-support/vim/vim.inc | 1 + 2 files changed, 102 insertions(+) create mode 100644 meta/recipes-support/vim/files/CVE-2026-73074.patch