1 files changed, 38 insertions, 0 deletions

diff --git a/meta/recipes-bsp/grub/files/CVE-2024-45781.patch b/meta/recipes-bsp/grub/files/CVE-2024-45781.patch
new file mode 100644
index 0000000000..fb91fa45c7
--- /dev/null
+++ b/meta/recipes-bsp/grub/files/CVE-2024-45781.patch
@@ -0,0 +1,38 @@
+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: Hitendra Prajapati <hprajapati@mvista.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 34a698b..4727266 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)
+-- 
+2.25.1
+