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| author | David S. Miller <davem@davemloft.net> | 2017-11-02 16:52:41 +0900 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-11-02 16:52:41 +0900 |
| commit | 74784da82ff74379d0583a3ffe42835888705ac7 (patch) | |
| tree | 631b121a1e03ade9344ae61d7bbc9ea63f6ae123 /net/ipv4 | |
| parent | 18129a24983906eaf2a2d448ce4b83e27091ebe2 (diff) | |
| parent | 7400bb4b5800831581a82f71700af6a5e815c3c8 (diff) | |
| download | linux-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>
Diffstat (limited to 'net/ipv4')
| -rw-r--r-- | net/ipv4/netfilter/nf_reject_ipv4.c | 2 |
1 files changed, 2 insertions, 0 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; |