grub: patch CVE-2024-45776

Cherry-pick patch mentioning this CVE.

(From OE-Core rev: f2cd97d9312f233a604d62a662a93a2d7d8ab3f3)

Signed-off-by: Peter Marko <peter.marko@siemens.com>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 39 insertions, 0 deletions

diff --git a/meta/recipes-bsp/grub/files/CVE-2024-45776.patch b/meta/recipes-bsp/grub/files/CVE-2024-45776.patch
new file mode 100644
index 0000000000..8deea958b8
--- /dev/null
+++ b/meta/recipes-bsp/grub/files/CVE-2024-45776.patch
@@ -0,0 +1,39 @@
+From 09bd6eb58b0f71ec273916070fa1e2de16897a91 Mon Sep 17 00:00:00 2001
+From: Lidong Chen <lidong.chen@oracle.com>
+Date: Fri, 22 Nov 2024 06:27:56 +0000
+Subject: [PATCH] gettext: Integer overflow leads to heap OOB write or read
+
+Calculation of ctx->grub_gettext_msg_list size in grub_mofile_open() may
+overflow leading to subsequent OOB write or read. This patch fixes the
+issue by replacing grub_zalloc() and explicit multiplication with
+grub_calloc() which does the same thing in safe manner.
+
+Fixes: CVE-2024-45776
+
+Reported-by: Nils Langius <nils@langius.de>
+Signed-off-by: Lidong Chen <lidong.chen@oracle.com>
+Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
+Reviewed-by: Alec Brown <alec.r.brown@oracle.com>
+
+CVE: CVE-2024-45776
+Upstream-Status: Backport [https://git.savannah.gnu.org/cgit/grub.git/commit/?id=09bd6eb58b0f71ec273916070fa1e2de16897a91]
+Signed-off-by: Peter Marko <peter.marko@siemens.com>
+---
+ grub-core/gettext/gettext.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/grub-core/gettext/gettext.c b/grub-core/gettext/gettext.c
+index e4f4f8ee6..63bb1ab73 100644
+--- a/grub-core/gettext/gettext.c
++++ b/grub-core/gettext/gettext.c
+@@ -323,8 +323,8 @@ grub_mofile_open (struct grub_gettext_context *ctx,
+   for (ctx->grub_gettext_max_log = 0; ctx->grub_gettext_max >> ctx->grub_gettext_max_log;
+        ctx->grub_gettext_max_log++);
+ 
+-  ctx->grub_gettext_msg_list = grub_zalloc (ctx->grub_gettext_max
+-                                           * sizeof (ctx->grub_gettext_msg_list[0]));
++  ctx->grub_gettext_msg_list = grub_calloc (ctx->grub_gettext_max,
++                                           sizeof (ctx->grub_gettext_msg_list[0]));
+   if (!ctx->grub_gettext_msg_list)
+     {
+       grub_file_close (fd);