This update for grub2 fixes the following issues
- CVE-2025-54770: Missing unregister call for net_set_vlan command may lead to use-after-free (bsc#1252930).
- CVE-2025-54771: grub_file_close() does not properly controls the fs refcount (bsc#1252931).
- CVE-2025-61661: Out-of-bounds write in grub_usb_get_string() function (bsc#1252932).
- CVE-2025-61662: Missing unregister call for gettext command may lead to use-after-free (bsc#1252933).
- CVE-2025-61663: Missing unregister call for normal commands may lead to use-after-free (bsc#1252934).
- CVE-2025-61664: Missing unregister call for normal_exit command may lead to use-after-free (bsc#1252935).
Changes for grub2:
- Bump upstream SBAT generation to 6