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authorDavid S. Miller <davem@davemloft.net>2017-11-02 16:52:41 +0900
committerDavid S. Miller <davem@davemloft.net>2017-11-02 16:52:41 +0900
commit74784da82ff74379d0583a3ffe42835888705ac7 (patch)
tree631b121a1e03ade9344ae61d7bbc9ea63f6ae123
parent18129a24983906eaf2a2d448ce4b83e27091ebe2 (diff)
parent7400bb4b5800831581a82f71700af6a5e815c3c8 (diff)
downloadlinux-74784da82ff74379d0583a3ffe42835888705ac7.tar.bz2
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf
Pablo Neira Ayuso says: ==================== Netfilter fixes for net The following patchset contains two one-liner fixes for your net tree, they are: 1) Disable fast hash operations for 2-bytes length keys which is leading to incorrect lookups in nf_tables, from Anatole Denis. 2) Reload pointer ipv4 header after ip_route_me_harder() given this may result in use-after-free due to skbuff header reallocation, patch from Tejaswi Tanikella. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--net/ipv4/netfilter/nf_reject_ipv4.c2
-rw-r--r--net/netfilter/nft_set_hash.c1
2 files changed, 2 insertions, 1 deletions
diff --git a/net/ipv4/netfilter/nf_reject_ipv4.c b/net/ipv4/netfilter/nf_reject_ipv4.c
index eeacbdaf7cdf..5cd06ba3535d 100644
--- a/net/ipv4/netfilter/nf_reject_ipv4.c
+++ b/net/ipv4/netfilter/nf_reject_ipv4.c
@@ -132,6 +132,8 @@ void nf_send_reset(struct net *net, struct sk_buff *oldskb, int hook)
if (ip_route_me_harder(net, nskb, RTN_UNSPEC))
goto free_nskb;
+ niph = ip_hdr(nskb);
+
/* "Never happens" */
if (nskb->len > dst_mtu(skb_dst(nskb)))
goto free_nskb;
diff --git a/net/netfilter/nft_set_hash.c b/net/netfilter/nft_set_hash.c
index 0fa01d772c5e..9c0d5a7ce5f9 100644
--- a/net/netfilter/nft_set_hash.c
+++ b/net/netfilter/nft_set_hash.c
@@ -643,7 +643,6 @@ nft_hash_select_ops(const struct nft_ctx *ctx, const struct nft_set_desc *desc,
{
if (desc->size) {
switch (desc->klen) {
- case 2:
case 4:
return &nft_hash_fast_ops;
default: