diff options
Diffstat (limited to 'net/netfilter/nft_bitwise.c')
| -rw-r--r-- | net/netfilter/nft_bitwise.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/net/netfilter/nft_bitwise.c b/net/netfilter/nft_bitwise.c index d71cc18fa35d..31c15ed2e5fc 100644 --- a/net/netfilter/nft_bitwise.c +++ b/net/netfilter/nft_bitwise.c @@ -52,6 +52,7 @@ static int nft_bitwise_init(const struct nft_ctx *ctx, { struct nft_bitwise *priv = nft_expr_priv(expr); struct nft_data_desc d1, d2; + u32 len; int err; if (tb[NFTA_BITWISE_SREG] == NULL || @@ -61,7 +62,12 @@ static int nft_bitwise_init(const struct nft_ctx *ctx, tb[NFTA_BITWISE_XOR] == NULL) return -EINVAL; - priv->len = ntohl(nla_get_be32(tb[NFTA_BITWISE_LEN])); + err = nft_parse_u32_check(tb[NFTA_BITWISE_LEN], U8_MAX, &len); + if (err < 0) + return err; + + priv->len = len; + priv->sreg = nft_parse_register(tb[NFTA_BITWISE_SREG]); err = nft_validate_register_load(priv->sreg, priv->len); if (err < 0) |