* Stefani Seibold <[email protected]> wrote:
> By coincidence, the VVAR page is at the end of an ELF segment. As a
> result, if it ends up being a partial page, the kernel loader will
> leave garbage behind at the end of the vvar page. Zero-pad it to a
> full page to fix this issue.
>
> This has probably been broken since the VVAR page was introduced.
> On QEMU, if you dump the run-time contents of the VVAR page, you can
> find entertaining strings from seabios left behind.
>
> It's remotely possible that this is a security bug -- conceivably
> there's some BIOS out there that leaves something sensitive in the
> few K of memory that is exposed to userspace.
>
> Signed-off-by: Andy Lutomirski <[email protected]>
> Signed-off-by: Stefani Seibold <[email protected]>
That's not a valid signoff sequence - if the patch came from Andy then
the patch needs to contain a From: Andy line as well. If Andy acked or
reviewed the patch then please add an Acked-by or Reviewed-by line.
Thanks,
Ingo
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