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| author | Eric Dumazet <edumazet@google.com> | 2013-08-11 21:54:48 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-08-11 22:02:36 -0700 |
| commit | f3dfd20860db3d0c400dd83a378176a28d3662db (patch) | |
| tree | b7a261523d1225efcbdbcb254953492807eceeff /net/unix | |
| parent | 6c821bd9edc9563b34c7920b4a99fe64992de530 (diff) | |
| download | linux-f3dfd20860db3d0c400dd83a378176a28d3662db.tar.gz linux-f3dfd20860db3d0c400dd83a378176a28d3662db.tar.bz2 linux-f3dfd20860db3d0c400dd83a378176a28d3662db.zip | |
af_unix: fix bug on large send()
commit e370a723632 ("af_unix: improve STREAM behavior with fragmented
memory") added a bug on large send() because the
skb_copy_datagram_from_iovec() call always start from the beginning
of iovec.
We must instead use the @sent variable to properly skip the
already processed part.
Reported-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/unix')
| -rw-r--r-- | net/unix/af_unix.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c index fee9e3397cd1..86de99ad2976 100644 --- a/net/unix/af_unix.c +++ b/net/unix/af_unix.c @@ -1669,7 +1669,8 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock, skb_put(skb, size - data_len); skb->data_len = data_len; skb->len = size; - err = skb_copy_datagram_from_iovec(skb, 0, msg->msg_iov, 0, size); + err = skb_copy_datagram_from_iovec(skb, 0, msg->msg_iov, + sent, size); if (err) { kfree_skb(skb); goto out_err; |