aff2631878
When parsing NTFS file records the presence of the 0xFF marker indicates the end of the attribute list. This value signifies that there are no more attributes to process. However, when the end marker is missing due to corrupted metadata the loop continues to read beyond the attribute list resulting in out-of-bounds reads and potentially entering an infinite loop. This patch adds a check to provide a stop condition for the loop ensuring it stops at the end of the attribute list or at the end of the Master File Table. This guards against out-of-bounds reads and prevents infinite loops. Reported-by: Daniel Axtens <dja@axtens.net> Signed-off-by: Michael Chang <mchang@suse.com> Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
This is GRUB 2, the second version of the GRand Unified Bootloader. GRUB 2 is rewritten from scratch to make GNU GRUB cleaner, safer, more robust, more powerful, and more portable. See the file NEWS for a description of recent changes to GRUB 2. See the file INSTALL for instructions on how to build and install the GRUB 2 data and program files. See the file MAINTAINERS for information about the GRUB maintainers, etc. If you found a security vulnerability in the GRUB please check the SECURITY file to get more information how to properly report this kind of bugs to the maintainers. Please visit the official web page of GRUB 2, for more information. The URL is <http://www.gnu.org/software/grub/grub.html>. More extensive documentation is available in the Info manual, accessible using 'info grub' after building and installing GRUB 2. There are a number of important user-visible differences from the first version of GRUB, now known as GRUB Legacy. For a summary, please see: info grub Introduction 'Changes from GRUB Legacy'