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authorYuchung Cheng <ycheng@google.com>2018-11-28 16:06:43 -0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-12-17 20:38:28 +0100
commit5b7ff64f5040ced0118fce42b9b95230214ff70a (patch)
tree4abb0a97f1865d9367ba40393d05c004e3cc1cd9 /net
parent7422156369281a11f0ccbbb70de9d33979942429 (diff)
tcp: fix off-by-one bug on aborting window-probing socket
[ Upstream commit 3976535af0cb9fe34a55f2ffb8d7e6b39a2f8188 ] Previously there is an off-by-one bug on determining when to abort a stalled window-probing socket. This patch fixes that so it is consistent with tcp_write_timeout(). Signed-off-by: Yuchung Cheng <ycheng@google.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Neal Cardwell <ncardwell@google.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'net')
-rw-r--r--net/ipv4/tcp_timer.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c
index 592d6e9967a9..04e2c43a43a5 100644
--- a/net/ipv4/tcp_timer.c
+++ b/net/ipv4/tcp_timer.c
@@ -358,7 +358,7 @@ static void tcp_probe_timer(struct sock *sk)
return;
}
- if (icsk->icsk_probes_out > max_probes) {
+ if (icsk->icsk_probes_out >= max_probes) {
abort: tcp_write_err(sk);
} else {
/* Only send another probe if we didn't close things up. */