Fix the direct assignment from u32 data input into the len attribute with a size of u8. Signed-off-by: Laura Garcia Liebana <nevola@xxxxxxxxx> --- net/netfilter/nft_cmp.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/net/netfilter/nft_cmp.c b/net/netfilter/nft_cmp.c index e25b35d..ca247e5 100644 --- a/net/netfilter/nft_cmp.c +++ b/net/netfilter/nft_cmp.c @@ -84,8 +84,11 @@ static int nft_cmp_init(const struct nft_ctx *ctx, const struct nft_expr *expr, if (err < 0) return err; - priv->op = ntohl(nla_get_be32(tb[NFTA_CMP_OP])); + if (desc.len > U8_MAX) + return -EINVAL; priv->len = desc.len; + priv->op = ntohl(nla_get_be32(tb[NFTA_CMP_OP])); + return 0; } -- 2.8.1 -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
