grub: patch CVE-2024-45775

Cherry-pick patch mentioning this CVE.

(From OE-Core rev: 4e01993bf71d3b8e2375ab43857b671738953507)

Signed-off-by: Peter Marko <peter.marko@siemens.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>
This commit is contained in:
Peter Marko 2025-03-11 19:17:17 +01:00 committed by Steve Sakoman
parent bfc2c48c83
commit 0dedd305c7
2 changed files with 39 additions and 0 deletions

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@ -0,0 +1,38 @@
From 05be856a8c3aae41f5df90cab7796ab7ee34b872 Mon Sep 17 00:00:00 2001
From: Lidong Chen <lidong.chen@oracle.com>
Date: Fri, 22 Nov 2024 06:27:55 +0000
Subject: [PATCH] commands/extcmd: Missing check for failed allocation
The grub_extcmd_dispatcher() calls grub_arg_list_alloc() to allocate
a grub_arg_list struct but it does not verify the allocation was successful.
In case of failed allocation the NULL state pointer can be accessed in
parse_option() through grub_arg_parse() which may lead to a security issue.
Fixes: CVE-2024-45775
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-2024-45775
Upstream-Status: Backport [https://git.savannah.gnu.org/cgit/grub.git/commit/?id=05be856a8c3aae41f5df90cab7796ab7ee34b872]
Signed-off-by: Peter Marko <peter.marko@siemens.com>
---
grub-core/commands/extcmd.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/grub-core/commands/extcmd.c b/grub-core/commands/extcmd.c
index 90a5ca24a..c236be13a 100644
--- a/grub-core/commands/extcmd.c
+++ b/grub-core/commands/extcmd.c
@@ -49,6 +49,9 @@ grub_extcmd_dispatcher (struct grub_command *cmd, int argc, char **args,
}
state = grub_arg_list_alloc (ext, argc, args);
+ if (state == NULL)
+ return grub_errno;
+
if (grub_arg_parse (ext, argc, args, state, &new_args, &new_argc))
{
context.state = state;

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@ -26,6 +26,7 @@ SRC_URI = "${GNU_MIRROR}/grub/grub-${PV}.tar.gz \
file://CVE-2024-45783.patch \
file://CVE-2025-0624.patch \
file://CVE-2024-45774.patch \
file://CVE-2024-45775.patch \
"
SRC_URI[sha256sum] = "b30919fa5be280417c17ac561bb1650f60cfb80cc6237fa1e2b6f56154cb9c91"