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netfilter: nf_tables: stricter validation of element data
commit 7e6bc1f upstream. Make sure element data type and length do not mismatch the one specified by the set declaration. Fixes: 7d74026 ("netfilter: nf_tables: variable sized set element keys / data") Reported-by: Hugues ANGUELKOV <hanguelkov@randorisec.fr> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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