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| author | Al Viro <viro@zeniv.linux.org.uk> | 2016-12-16 16:21:05 -0500 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2016-12-16 16:21:05 -0500 |
| commit | 3c55d6bcfe8163ff2b5636b4aabe3caa3f5d95f4 (patch) | |
| tree | 3229c2de6e95352751d1c9e05dcd2925a3212beb /net/netfilter/nft_hash.c | |
| parent | 4da00fd1b948b408f76488c4e506af748be5fce8 (diff) | |
| parent | 29ac8e856cb3694e004037de595dec4ec53d42f2 (diff) | |
Merge remote-tracking branch 'djwong/ocfs2-vfs-reflink-6' into for-linus
Diffstat (limited to 'net/netfilter/nft_hash.c')
| -rw-r--r-- | net/netfilter/nft_hash.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/net/netfilter/nft_hash.c b/net/netfilter/nft_hash.c index baf694de3935..d5447a22275c 100644 --- a/net/netfilter/nft_hash.c +++ b/net/netfilter/nft_hash.c @@ -53,6 +53,7 @@ static int nft_hash_init(const struct nft_ctx *ctx, { struct nft_hash *priv = nft_expr_priv(expr); u32 len; + int err; if (!tb[NFTA_HASH_SREG] || !tb[NFTA_HASH_DREG] || @@ -67,8 +68,10 @@ static int nft_hash_init(const struct nft_ctx *ctx, priv->sreg = nft_parse_register(tb[NFTA_HASH_SREG]); priv->dreg = nft_parse_register(tb[NFTA_HASH_DREG]); - len = ntohl(nla_get_be32(tb[NFTA_HASH_LEN])); - if (len == 0 || len > U8_MAX) + err = nft_parse_u32_check(tb[NFTA_HASH_LEN], U8_MAX, &len); + if (err < 0) + return err; + if (len == 0) return -ERANGE; priv->len = len; |