harfbuzz: Fix CVE-2026-22693

Pick patch mentioned in NVD report [1]

[1] https://nvd.nist.gov/vuln/detail/CVE-2026-22693

(From OE-Core rev: 541482f93d8447f7a027bacb99a6782ac5ed2a6e)

Signed-off-by: Bruno VERNAY <bruno.vernay@se.com>
Signed-off-by: Hugo SIMELIERE <hsimeliere.opensource@witekio.com>
Signed-off-by: Yoann Congal <yoann.congal@smile.fr>
Signed-off-by: Paul Barker <paul@pbarker.dev>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-graphics/harfbuzz/files/CVE-2026-22693.patch

@@ -0,0 +1,33 @@
+From 95d38abd1293cae1f2aa700a3949288fd2c9a4c4 Mon Sep 17 00:00:00 2001
+From: Behdad Esfahbod <behdad@behdad.org>
+Date: Fri, 9 Jan 2026 04:54:42 -0700
+Subject: [PATCH] [cmap] malloc fail test (#5710)
+
+Fixes https://github.com/harfbuzz/harfbuzz/security/advisories/GHSA-xvjr-f2r9-c7ww
+
+Upstream-Status: Backport [https://github.com/harfbuzz/harfbuzz/commit/1265ff8d990284f04d8768f35b0e20ae5f60daae]
+CVE: CVE-2026-22693
+
+Signed-off-by: Hugo SIMELIERE <hsimeliere.opensource@witekio.com>
+---
+ src/hb-ot-cmap-table.hh | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+diff --git a/src/hb-ot-cmap-table.hh b/src/hb-ot-cmap-table.hh
+index e2e258185..2f7d72700 100644
+--- a/src/hb-ot-cmap-table.hh
++++ b/src/hb-ot-cmap-table.hh
+@@ -1534,6 +1534,10 @@ struct SubtableUnicodesCache {
+   {
+     SubtableUnicodesCache* cache =
+         (SubtableUnicodesCache*) hb_malloc (sizeof(SubtableUnicodesCache));
++
++    if (unlikely (!cache))
++      return nullptr;
++
+     new (cache) SubtableUnicodesCache (source_table);
+     return cache;
+   }
+-- 
+2.43.0
+

meta/recipes-graphics/harfbuzz/harfbuzz_8.3.0.bb

@@ -8,7 +8,9 @@ LIC_FILES_CHKSUM = "file://COPYING;md5=b98429b8e8e3c2a67cfef01e99e4893d \
                     file://src/hb-ucd.cc;beginline=1;endline=15;md5=29d4dcb6410429195df67efe3382d8bc \
                     "
 
-SRC_URI = "${GITHUB_BASE_URI}/download/${PV}/${BPN}-${PV}.tar.xz"
+SRC_URI = "${GITHUB_BASE_URI}/download/${PV}/${BPN}-${PV}.tar.xz \
+           file://CVE-2026-22693.patch \
+           "
 SRC_URI[sha256sum] = "109501eaeb8bde3eadb25fab4164e993fbace29c3d775bcaa1c1e58e2f15f847"
 
 DEPENDS += "glib-2.0-native"