Pablo Neira Ayuso cdd73cc545 netfilter: nft_exthdr: check for IPv6 packet before further processing
ipv6_find_hdr() does not validate that this is an IPv6 packet. Add a
sanity check for calling ipv6_find_hdr() to make sure an IPv6 packet
is passed for parsing.

Fixes: 96518518cc41 ("netfilter: add nftables")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2021-06-16 20:51:50 +02:00
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