netfilter: xt_tcpmss: extend checkentry to ipv6

sashiko reports:
 Is it intentional that the new parameter validation callback is applied
 only to the NFPROTO_IPV4 match?

Fixes: 68fc6c6470 ("netfilter: xt_tcpmss: add checkentry for parameter validation")
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Florian Westphal 2026-07-04 09:31:33 +02:00 • committed by Pablo Neira Ayuso
commit 4172fd3697