[ovs-dev] [PATCH branch-2.9] conntrack: Fix ICMPv4 error data L4 length check.
blp at ovn.org
Mon Sep 23 20:49:56 UTC 2019
On Mon, Sep 23, 2019 at 12:14:40PM +0530, Vishal Deep Ajmera wrote:
> From: Darrell Ball <dlu998 at gmail.com>
> The ICMPv4 error data L4 length check was found to be too strict for TCP,
> expecting a minimum of 20 rather than 8 bytes. This worked by
> hapenstance for other inner protocols. The approach is to explicitly
> handle the ICMPv4 error data L4 length check and to do this for all
> supported inner protocols in the same way. Making the code common
> between protocols also allows the existing ICMPv4 related UDP tests to
> cover TCP and ICMP inner protocol cases.
> Note that ICMPv6 does not have an 8 byte limit for error L4 data.
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