From: Jeremy Sowden Date: Tue, 7 Mar 2023 23:22:58 +0000 (+0000) Subject: netfilter: nft_redir: correct length for loading protocol registers X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=1f617b6b4c7a3d5ea7a56abb83a4c27733b60c2f;p=linux.git netfilter: nft_redir: correct length for loading protocol registers The values in the protocol registers are two bytes wide. However, when parsing the register loads, the code currently uses the larger 16-byte size of a `union nf_inet_addr`. Change it to use the (correct) size of a `union nf_conntrack_man_proto` instead. Fixes: d07db9884a5f ("netfilter: nf_tables: introduce nft_validate_register_load()") Signed-off-by: Jeremy Sowden Reviewed-by: Florian Westphal Signed-off-by: Pablo Neira Ayuso --- diff --git a/net/netfilter/nft_redir.c b/net/netfilter/nft_redir.c index 5f77399875593..dbc642f5d32a3 100644 --- a/net/netfilter/nft_redir.c +++ b/net/netfilter/nft_redir.c @@ -48,7 +48,7 @@ static int nft_redir_init(const struct nft_ctx *ctx, unsigned int plen; int err; - plen = sizeof_field(struct nf_nat_range, min_addr.all); + plen = sizeof_field(struct nf_nat_range, min_proto.all); if (tb[NFTA_REDIR_REG_PROTO_MIN]) { err = nft_parse_register_load(tb[NFTA_REDIR_REG_PROTO_MIN], &priv->sreg_proto_min, plen);