tmux: fix stack buffer overflow

srcpkgs/tmux/patches/a868bac.patch

@@ -0,0 +1,30 @@
+From a868bacb46e3c900530bed47a1c6f85b0fbe701c Mon Sep 17 00:00:00 2001
+From: nicm <nicm>
+Date: Thu, 29 Oct 2020 16:33:01 +0000
+Subject: [PATCH] Do not write after the end of the array and overwrite the
+ stack when colon-separated SGR sequences contain empty arguments. Reported by
+ Sergey Nizovtsev.
+
+---
+ input.c | 7 ++++++-
+ 1 file changed, 6 insertions(+), 1 deletion(-)
+
+diff --git a/input.c b/input.c
+index 42a60c92a..c280c0d97 100644
+--- input.c
++++ input.c
+@@ -1976,8 +1976,13 @@ input_csi_dispatch_sgr_colon(struct input_ctx *ictx, u_int i)
+ 				free(copy);
+ 				return;
+ 			}
+-		} else
++		} else {
+ 			n++;
++			if (n == nitems(p)) {
++				free(copy);
++				return;
++			}
++		}
+ 		log_debug("%s: %u = %d", __func__, n - 1, p[n - 1]);
+ 	}
+ 	free(copy);

srcpkgs/tmux/template

@@ -1,7 +1,7 @@
 # Template file for 'tmux'
 pkgname=tmux
 version=3.1b
-revision=1
+revision=2
 build_style=gnu-configure
 hostmakedepends="byacc"
 makedepends="libevent-devel ncurses-devel"