From 3b9da3dcd11f3d73281383c4ba383a4fcc4b9bbe Mon Sep 17 00:00:00 2001
From: Michael Tuexen <tuexen@FreeBSD.org>
Date: Wed, 1 Jan 2025 18:42:00 +0100
Subject: [PATCH] TCP RACK: avoid using uninitialized tot_idle variable

Reviewed by:		rrs
CID:			1540027
MFC after:		1 week
Sponsored by:		Netflix, Inc.
Differential Revision:	https://reviews.freebsd.org/D48277
---
 sys/netinet/tcp_stacks/rack.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sys/netinet/tcp_stacks/rack.c b/sys/netinet/tcp_stacks/rack.c
index acd62281491..00c373ef079 100644
--- a/sys/netinet/tcp_stacks/rack.c
+++ b/sys/netinet/tcp_stacks/rack.c
@@ -19994,7 +19994,8 @@ rack_output(struct tcpcb *tp)
 				rack_exit_probertt(rack, cts);
 			}
 		}
-	}
+	} else
+		tot_idle = 0;
 	if (rack_use_fsb &&
 	    (rack->r_ctl.fsb.tcp_ip_hdr) &&
 	    (rack->r_fsb_inited == 0) &&