000e48b42c
Improved ad-hoc fuzzing coverage revealed a possible access violation around line 342 of grub-core/fs/ntfs.c when accessing the attr_cur pointer due to possibility of moving pointer "next" beyond of the end of the valid buffer inside next_attribute. Prevent this for cases where full attribute validation is not performed (such as on attribute lists) by performing a sanity check on the newly calculated next pointer. Fixes: 06914b614 (fs/ntfs: Correct attribute vs attribute list validation) Signed-off-by: Andrew Hamilton <adhamilt@gmail.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'