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commit4e1860a386upstream. IP fragments do not come with the transport header, hence skip bogus layer 4 checksum updates. Fixes:1814096980("netfilter: nft_payload: layer 4 checksum adjustment for pseudoheader fields") Reported-and-tested-by: Steffen Weinreich <steve@weinreich.org> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>