1c0df7c142
The return value of grub_loongarch64_stack_pop() is unsigned, so -1 should not be used in the first place. Replacing with 0 is enough to avoid the UB in this edge case. Technically though, proper error handling is needed throughout the management of the reloc stack, so no unexpected behavior will happen even in case of malformed object code input (right now, pushes become no-ops when the stack is full, and garbage results if the stack does not contain enough operands for an op). The refactor would touch some more places so would be best done in a separate series. Fixes: CID 407777 Fixes: CID 407778 Signed-off-by: WANG Xuerui <git@xen0n.name> 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'