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grup: patch CVE-2024-45781

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Cherry-pick patch mentioning this CVE.

(From OE-Core rev: ef41ef5730d08371d1eb03f94fa9357edf26889f)

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 19:14:10 +01:00 committed by Steve Sakoman
parent 039f52ed9c
commit 01aac7e940
2 changed files with 36 additions and 0 deletions
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35
meta/recipes-bsp/grub/files/CVE-2024-45781.patch Normal file
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@ -0,0 +1,35 @@
From c1a291b01f4f1dcd6a22b61f1c81a45a966d16ba Mon Sep 17 00:00:00 2001
From: B Horn <b@horn.uk>
Date: Sun, 12 May 2024 02:03:33 +0100
Subject: [PATCH 2/2] fs/ufs: Fix a heap OOB write
grub_strcpy() was used to copy a symlink name from the filesystem
image to a heap allocated buffer. This led to a OOB write to adjacent
heap allocations. Fix by using grub_strlcpy().
Fixes: CVE-2024-45781
Reported-by: B Horn <b@horn.uk>
Signed-off-by: B Horn <b@horn.uk>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
CVE: CVE-2024-45781
Upstream-Status: Backport [https://git.savannah.gnu.org/cgit/grub.git/commit/?id=c1a291b01f4f1dcd6a22b61f1c81a45a966d16ba]
Signed-off-by: Peter Marko <peter.marko@siemens.com>
---
grub-core/fs/ufs.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/grub-core/fs/ufs.c b/grub-core/fs/ufs.c
index a354c92d9..01235101b 100644
--- a/grub-core/fs/ufs.c
+++ b/grub-core/fs/ufs.c
@@ -463,7 +463,7 @@ grub_ufs_lookup_symlink (struct grub_ufs_data *data, int ino)
/* Check against zero is paylindromic, no need to swap. */
if (data->inode.nblocks == 0
&& INODE_SIZE (data) <= sizeof (data->inode.symlink))
- grub_strcpy (symlink, (char *) data->inode.symlink);
+ grub_strlcpy (symlink, (char *) data->inode.symlink, sz);
else
{
if (grub_ufs_read_file (data, 0, 0, 0, sz, symlink) < 0)

1
meta/recipes-bsp/grub/grub2.inc
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@ -19,6 +19,7 @@ SRC_URI = "${GNU_MIRROR}/grub/grub-${PV}.tar.gz \
file://0001-grub.d-10_linux.in-add-oe-s-kernel-name.patch \
file://0001-RISC-V-Restore-the-typcast-to-long.patch \
file://0001-misc-Implement-grub_strlcpy.patch \
file://CVE-2024-45781.patch \
"
SRC_URI[sha256sum] = "b30919fa5be280417c17ac561bb1650f60cfb80cc6237fa1e2b6f56154cb9c91"