diff options
| author | Zheng Yan <zheng.z.yan@intel.com> | 2011-09-18 22:37:34 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-10-03 11:40:54 -0700 |
| commit | 616ea55abc53ced58c4097b33b26abea01a743d4 (patch) | |
| tree | 745fddbb114a33925b15f5ca53f4e7bd5df31fec /net | |
| parent | 265d5c2eb22550566cf4193df46596dac439374c (diff) | |
tcp: fix validation of D-SACK
[ Upstream commit f779b2d60ab95c17f1e025778ed0df3ec2f05d75 ]
D-SACK is allowed to reside below snd_una. But the corresponding check
in tcp_is_sackblock_valid() is the exact opposite. It looks like a typo.
Signed-off-by: Zheng Yan <zheng.z.yan@intel.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'net')
| -rw-r--r-- | net/ipv4/tcp_input.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index bef9f04c22b..b6771f9eb9d 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -1115,7 +1115,7 @@ static int tcp_is_sackblock_valid(struct tcp_sock *tp, int is_dsack, return 0; /* ...Then it's D-SACK, and must reside below snd_una completely */ - if (!after(end_seq, tp->snd_una)) + if (after(end_seq, tp->snd_una)) return 0; if (!before(start_seq, tp->undo_marker)) |