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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2024-06-18 11:06:17 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2024-06-18 11:06:17 +0200
commitb0fc24f36191468bcabc72aaea67ab7a2bb2a13e (patch)
treebc64adf1363a447ad4582deeaa5bb36ffcf6bfcc /net/ipv4/tcp_timer.c
parent5821bf2dffbe18fe1f097dbb027415fa15a38e9a (diff)
parent6ba59ff4227927d3a8530fc2973b80e94b54d58f (diff)
Merge tag 'v6.10-rc4' into usb-next
We need the USB / Thunderbolt fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/ipv4/tcp_timer.c')
-rw-r--r--net/ipv4/tcp_timer.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c
index 83fe7f62f7f1..5bfd76a31af6 100644
--- a/net/ipv4/tcp_timer.c
+++ b/net/ipv4/tcp_timer.c
@@ -485,8 +485,12 @@ static bool tcp_rtx_probe0_timed_out(const struct sock *sk,
{
const struct tcp_sock *tp = tcp_sk(sk);
const int timeout = TCP_RTO_MAX * 2;
- u32 rcv_delta;
+ s32 rcv_delta;
+ /* Note: timer interrupt might have been delayed by at least one jiffy,
+ * and tp->rcv_tstamp might very well have been written recently.
+ * rcv_delta can thus be negative.
+ */
rcv_delta = inet_csk(sk)->icsk_timeout - tp->rcv_tstamp;
if (rcv_delta <= timeout)
return false;