tree 4e1e3090b5ec43ed88cc2790c080b2a790679d78
parent 7a6ee466c953fcae484c549a07fb0a9c92349039
author Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com> 1547501899 +0100
committer Tom Rini <trini@konsulko.com> 1547674625 -0500

fs: prevent overwriting reserved memory

This fixes CVE-2018-18440 ("insufficient boundary checks in filesystem
image load") by using lmb to check the load size of a file against
reserved memory addresses.

Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>