Details: https://nvd.nist.gov/vuln/detail/CVE-2025-14422

Pick the patch referenced by the NVD report.

Signed-off-by: Gyorgy Sarvari <[email protected]>
---
 .../gimp/gimp/CVE-2025-14422.patch            | 66 +++++++++++++++++++
 meta-gnome/recipes-gimp/gimp/gimp_3.0.6.bb    | 12 ++--
 2 files changed, 73 insertions(+), 5 deletions(-)
 create mode 100644 meta-gnome/recipes-gimp/gimp/gimp/CVE-2025-14422.patch

diff --git a/meta-gnome/recipes-gimp/gimp/gimp/CVE-2025-14422.patch 
b/meta-gnome/recipes-gimp/gimp/gimp/CVE-2025-14422.patch
new file mode 100644
index 0000000000..420e013916
--- /dev/null
+++ b/meta-gnome/recipes-gimp/gimp/gimp/CVE-2025-14422.patch
@@ -0,0 +1,66 @@
+From 0a941cab81396d65a8ab547847f8c542039e214f Mon Sep 17 00:00:00 2001
+From: Gyorgy Sarvari <[email protected]>
+Date: Sun, 23 Nov 2025 16:43:51 +0000
+Subject: [PATCH] plug-ins: Fix ZDI-CAN-28273
+
+From: Alx Sa <[email protected]>
+
+Resolves #15286
+Adds a check to the memory allocation
+in pnm_load_raw () with g_size_checked_mul ()
+to see if the size would go out of bounds.
+If so, we don't try to allocate and load the
+image.
+
+CVE: CVE-2025-14422
+Upstream-Status: Backport 
[https://gitlab.gnome.org/GNOME/gimp/-/commit/4ff2d773d58064e6130495de498e440f4a6d5edb]
+Signed-off-by: Gyorgy Sarvari <[email protected]>
+---
+ plug-ins/common/file-pnm.c | 13 +++++++++++--
+ 1 file changed, 11 insertions(+), 2 deletions(-)
+
+diff --git a/plug-ins/common/file-pnm.c b/plug-ins/common/file-pnm.c
+index 32a33a4..9d349e9 100644
+--- a/plug-ins/common/file-pnm.c
++++ b/plug-ins/common/file-pnm.c
+@@ -674,7 +674,7 @@ load_image (GFile   *file,
+             GError **error)
+ {
+   GInputStream    *input;
+-  GeglBuffer      *buffer;
++  GeglBuffer      *buffer    = NULL;
+   GimpImage * volatile image = NULL;
+   GimpLayer       *layer;
+   char             buf[BUFLEN + 4];  /* buffer for random things like 
scanning */
+@@ -708,6 +708,9 @@ load_image (GFile   *file,
+       g_object_unref (input);
+       g_free (pnminfo);
+ 
++      if (buffer)
++        g_object_unref (buffer);
++
+       if (image)
+         gimp_image_delete (image);
+ 
+@@ -1060,6 +1063,7 @@ pnm_load_raw (PNMScanner *scan,
+   const Babl   *format = NULL;
+   gint          bpc;
+   guchar       *data, *d;
++  gsize         data_size;
+   gushort      *s;
+   gint          x, y, i;
+   gint          start, end, scanlines;
+@@ -1070,7 +1074,12 @@ pnm_load_raw (PNMScanner *scan,
+     bpc = 1;
+ 
+   /* No overflow as long as gimp_tile_height() < 1365 = 2^(31 - 18) / 6 */
+-  data = g_new (guchar, gimp_tile_height () * info->xres * info->np * bpc);
++  if (! g_size_checked_mul (&data_size, gimp_tile_height (), info->xres) ||
++      ! g_size_checked_mul (&data_size, data_size, info->np)             ||
++      ! g_size_checked_mul (&data_size, data_size, bpc))
++    CHECK_FOR_ERROR (FALSE, info->jmpbuf, _("Unsupported maximum value."));
++
++  data = g_new (guchar, data_size);
+ 
+   input = pnmscanner_input (scan);
+ 
diff --git a/meta-gnome/recipes-gimp/gimp/gimp_3.0.6.bb 
b/meta-gnome/recipes-gimp/gimp/gimp_3.0.6.bb
index 9f38cdcd03..f529930dff 100644
--- a/meta-gnome/recipes-gimp/gimp/gimp_3.0.6.bb
+++ b/meta-gnome/recipes-gimp/gimp/gimp_3.0.6.bb
@@ -56,11 +56,13 @@ GIDOCGEN_MESON_OPTION = "gi-docgen"
 GIDOCGEN_MESON_ENABLE_FLAG = "enabled"
 GIDOCGEN_MESON_DISABLE_FLAG = "disabled"
 
-SRC_URI = "https://download.gimp.org/gimp/v3.0/${BP}.tar.xz";
-SRC_URI += "file://0001-gimp-cross-compile-fix-for-bz2.patch"
-SRC_URI += "file://0002-meson.build-reproducibility-fix.patch"
-SRC_URI += "file://0001-meson.build-dont-check-for-lgi.patch"
-SRC_URI += "file://0001-meson.build-require-iso-codes-native.patch"
+SRC_URI = "https://download.gimp.org/gimp/v3.0/${BP}.tar.xz \
+           file://0001-gimp-cross-compile-fix-for-bz2.patch \
+           file://0002-meson.build-reproducibility-fix.patch \
+           file://0001-meson.build-dont-check-for-lgi.patch \
+           file://0001-meson.build-require-iso-codes-native.patch \
+           file://CVE-2025-14422.patch \
+           "
 SRC_URI[sha256sum] = 
"246c225383c72ef9f0dc7703b7d707084bbf177bd2900e94ce466a62862e296b"
 
 PACKAGECONFIG[aa] = "-Daa=enabled,-Daa=disabled,aalib"
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