From 70af46a24d6f5fac12a7defce3e080137056f880 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Deuc=D0=B5?= <shurd@sasktel.net>
Date: Wed, 28 Jun 2023 13:00:05 -0400
Subject: [PATCH] Fix for b593c251d
The commit just the zero-length behaviour from uninitialized use
with possible undefined behaviour to guaranteed undefined behaviour.
---
src/conio/cterm.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/src/conio/cterm.c b/src/conio/cterm.c
index d620905f03..1648e55c60 100644
--- a/src/conio/cterm.c
+++ b/src/conio/cterm.c
@@ -2045,6 +2045,8 @@ all_done:
size_t mlen = 0;
char *out;
+ if (end == NULL)
+ return;
// First, calculate the required length...
for (p = cterm->strbuf; p <= end;) {
if (*p == '!') {
--
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