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| author | Eric Dumazet <edumazet@google.com> | 2015-02-13 13:47:12 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-02-13 16:11:40 +0100 |
| commit | ba34e6d9d346fe4e05d7e417b9edf5140772d34c (patch) | |
| tree | c0470809aa6a3e92fce6c0b37757ab58e75e9dc5 /net/core/skbuff.c | |
| parent | bridge: netfilter: Move sysctl-specific error code inside #ifdef (diff) | |
| download | linux-ba34e6d9d346fe4e05d7e417b9edf5140772d34c.tar.xz linux-ba34e6d9d346fe4e05d7e417b9edf5140772d34c.zip | |
tcp: make sure skb is not shared before using skb_get()
IPv6 can keep a copy of SYN message using skb_get() in
tcp_v6_conn_request() so that caller wont free the skb when calling
kfree_skb() later.
Therefore TCP fast open has to clone the skb it is queuing in
child->sk_receive_queue, as all skbs consumed from receive_queue are
freed using __kfree_skb() (ie assuming skb->users == 1)
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Fixes: 5b7ed0892f2af ("tcp: move fastopen functions to tcp_fastopen.c")
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core/skbuff.c')
0 files changed, 0 insertions, 0 deletions