Backport fix for intermittent stalling bug

Resolves: rhbz 2024339

0001-Increment-the-lines-counter-when-skipping-a-line-to-.patch

@@ -0,0 +1,39 @@
+From 66a2bbfc0252bc61b214749e3b56f2cfacc652a7 Mon Sep 17 00:00:00 2001
+From: Nicholas Marriott <nicholas.marriott@gmail.com>
+Date: Tue, 4 Apr 2023 13:24:56 -0400
+Subject: [PATCH] Increment the lines counter when skipping a line to avoid an
+ infinite
+
+loop, and fix a check to avoid a potential out-of-bounds access. Problem
+reported by Yuxiang Qin and tracked down by Karl Beldan; GitHub issue
+1352.
+
+Backport ba31d3a to 2.7
+---
+ grid.c | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/grid.c b/grid.c
+index e4ba7df4..4db4c693 100644
+--- a/grid.c
++++ b/grid.c
+@@ -1010,7 +1010,7 @@ grid_reflow_join(struct grid *target, struct grid *gd, u_int sx, u_int yy,
+ 		 * If this is now the last line, there is nothing more to be
+ 		 * done.
+ 		 */
+-		if (yy + lines == gd->hsize + gd->sy)
++		if (yy + 1 + lines == gd->hsize + gd->sy)
+ 			break;
+ 		line = yy + 1 + lines;
+ 
+@@ -1020,6 +1020,7 @@ grid_reflow_join(struct grid *target, struct grid *gd, u_int sx, u_int yy,
+ 		if (gd->linedata[line].cellused == 0) {
+ 			if (!wrapped)
+ 				break;
++			lines++;
+ 			continue;
+ 		}
+ 
+-- 
+2.31.1
+

tmux.spec

@@ -2,7 +2,7 @@
 
 Name:           tmux
 Version:        2.7
-Release:        1%{?dist}
+Release:        2%{?dist}
 Summary:        A terminal multiplexer
 
 Group:          Applications/System
@@ -13,6 +13,7 @@ URL:            https://tmux.github.io/
 Source0:        https://github.com/tmux/%{name}/releases/download/%{version}/%{name}-%{version}.tar.gz
 # Examples has been removed - so include the bash_completion here
 Source1:        bash_completion_tmux.sh
+Patch1:         0001-Increment-the-lines-counter-when-skipping-a-line-to-.patch
 
 BuildRequires:  gcc
 BuildRequires:  ncurses-devel
@@ -64,6 +65,10 @@ fi
 %{_datadir}/bash-completion/completions/tmux
 
 %changelog
+* Tue Apr 04 2023 Josh Boyer <jwboyer@redhat.com> - 2.7-2
+- Backport fix for intermittent stalling bug
+  Resolves: rhbz 2024339
+
 * Thu Apr 19 2018 Filipe Rosset <rosset.filipe@gmail.com> - 2.7-1
 - update to version 2.7, fixes rhbz #1486507
 - removed upstreamed patches + spec modernization