grub: patch CVE-2024-45774

Cherry-pick patch mentioning this CVE.

(From OE-Core rev: e956e7437aa95e006547c3a92271b64c25252a50)

Signed-off-by: Peter Marko <peter.marko@siemens.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>

2 files changed, 38 insertions, 0 deletions

diff --git a/meta/recipes-bsp/grub/files/CVE-2024-45774.patch b/meta/recipes-bsp/grub/files/CVE-2024-45774.patch
new file mode 100644
index 0000000000..55aecc17d7
--- /dev/null
+++ b/meta/recipes-bsp/grub/files/CVE-2024-45774.patch
@@ -0,0 +1,37 @@
+From 2c34af908ebf4856051ed29e46d88abd2b20387f Mon Sep 17 00:00:00 2001
+From: Daniel Axtens <dja@axtens.net>
+Date: Fri, 8 Mar 2024 22:47:20 +1100
+Subject: [PATCH] video/readers/jpeg: Do not permit duplicate SOF0 markers in
+ JPEG
+
+Otherwise a subsequent header could change the height and width
+allowing future OOB writes.
+
+Fixes: CVE-2024-45774
+
+Reported-by: Nils Langius <nils@langius.de>
+Signed-off-by: Daniel Axtens <dja@axtens.net>
+Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
+
+CVE: CVE-2024-45774
+Upstream-Status: Backport [https://git.savannah.gnu.org/cgit/grub.git/commit/?id=2c34af908ebf4856051ed29e46d88abd2b20387f]
+Signed-off-by: Peter Marko <peter.marko@siemens.com>
+---
+ grub-core/video/readers/jpeg.c | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+diff --git a/grub-core/video/readers/jpeg.c b/grub-core/video/readers/jpeg.c
+index ae634fd41..631a89356 100644
+--- a/grub-core/video/readers/jpeg.c
++++ b/grub-core/video/readers/jpeg.c
+@@ -339,6 +339,10 @@ grub_jpeg_decode_sof (struct grub_jpeg_data *data)
+   if (grub_errno != GRUB_ERR_NONE)
+     return grub_errno;
+ 
++  if (data->image_height != 0 || data->image_width != 0)
++    return grub_error (GRUB_ERR_BAD_FILE_TYPE,
++                      "jpeg: cannot have duplicate SOF0 markers");
++
+   if (grub_jpeg_get_byte (data) != 8)
+     return grub_error (GRUB_ERR_BAD_FILE_TYPE,
+                       "jpeg: only 8-bit precision is supported");
diff --git a/meta/recipes-bsp/grub/grub2.inc b/meta/recipes-bsp/grub/grub2.inc
index 3526c43835..ea6e19072e 100644
--- a/meta/recipes-bsp/grub/grub2.inc
+++ b/meta/recipes-bsp/grub/grub2.inc
@@ -24,6 +24,7 @@ SRC_URI = "${GNU_MIRROR}/grub/grub-${PV}.tar.gz \
            file://CVE-2024-45780.patch \
            file://CVE-2024-45783.patch \
            file://CVE-2025-0624.patch \
+           file://CVE-2024-45774.patch \
 "
 
 SRC_URI[sha256sum] = "b30919fa5be280417c17ac561bb1650f60cfb80cc6237fa1e2b6f56154cb9c91"