On Tue, Aug 17, 2021 at 11:05:19PM -0700, Kees Cook wrote:
In preparation for FORTIFY_SOURCE performing compile-time and run-time
field bounds checking for memset(), avoid intentionally writing across
neighboring fields.
Use memset_startat() so memset() doesn't get confused about writing
beyond the destination member that is intended to be the starting point
of zeroing through the end of the struct.
Cc: Chris Mason <redacted>
Cc: Josef Bacik <josef@toxicpanda.com>
Cc: David Sterba <dsterba@suse.com>
Cc: <redacted>
Signed-off-by: Kees Cook <redacted>
Acked-by: David Sterba <dsterba@suse.com>