diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-11-28 10:34:10 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-11-28 10:34:10 +0300 |
| commit | 0edbf9e55295585bbe9df61b646ca5bf80a8e1eb (patch) | |
| tree | d9b6869ff7a245343a9b030511d4bfd18b00f192 /net/ipv4/tcp_ipv4.c | |
| parent | eacae5d2b940b39e7234036bf62869aff5ffe055 (diff) | |
| parent | e5517c2a5a49ed5e99047008629f1cd60246ea0e (diff) | |
| download | linux-0edbf9e55295585bbe9df61b646ca5bf80a8e1eb.tar.xz | |
Merge 4.9-rc7 into usb-next
We want the USB fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/ipv4/tcp_ipv4.c')
| -rw-r--r-- | net/ipv4/tcp_ipv4.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index 61b7be303eec..2259114c7242 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -1564,6 +1564,21 @@ bool tcp_add_backlog(struct sock *sk, struct sk_buff *skb) } EXPORT_SYMBOL(tcp_add_backlog); +int tcp_filter(struct sock *sk, struct sk_buff *skb) +{ + struct tcphdr *th = (struct tcphdr *)skb->data; + unsigned int eaten = skb->len; + int err; + + err = sk_filter_trim_cap(sk, skb, th->doff * 4); + if (!err) { + eaten -= skb->len; + TCP_SKB_CB(skb)->end_seq -= eaten; + } + return err; +} +EXPORT_SYMBOL(tcp_filter); + /* * From tcp_input.c */ @@ -1676,8 +1691,10 @@ process: nf_reset(skb); - if (sk_filter(sk, skb)) + if (tcp_filter(sk, skb)) goto discard_and_relse; + th = (const struct tcphdr *)skb->data; + iph = ip_hdr(skb); skb->dev = NULL; |