tree c04917753aa8f8cd07d54140c9580af45c7f5dd8
parent 2c29b2354a06f42493ddd2a5eb65962981e666ed
author Eric W. Biederman <ebiederm@xmission.com> 1426202579 -0500
committer David S. Miller <davem@davemloft.net> 1426215904 -0400

mpls: In mpls_egress verify the packet length.

Reobert Shearman noticed that mpls_egress is failing to verify that
the bytes to be examined are in fact present in the packet before
mpls_egress reads those bytes.

As suggested by David Miller reduce this to a single pskb_may_pull
call so that we don't do unnecessary work in the fast path.

Reported-by: Robert Shearman <rshearma@brocade.com>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>