e346414725
The os-prober is enabled by default what may lead to potentially dangerous use cases and borderline opening attack vectors. This patch disables the os-prober, adds warning messages and updates GRUB_DISABLE_OS_PROBER configuration option documentation. This way we make it clear that the os-prober usage is not recommended. Simplistic nature of this change allows downstream vendors, who really want os-prober to be enabled out of the box in their relevant products, easily revert to it's old behavior. Reported-by: NyankoSec (<nyanko@10x.moe>, https://twitter.com/NyankoSec), working with SSD Secure Disclosure Signed-off-by: Alex Burmashev <alexander.burmashev@oracle.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. 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'