From 4c069f5c8f3b63d8ba8556ba8292e1f5972508d6 Mon Sep 17 00:00:00 2001
From: Ailin Nemui <ailin@d5401s.localdomain>
Date: Sat, 27 Feb 2021 18:31:00 +0100
Subject: [PATCH] stop parsing on lone tag escape

It's C

Credit to OSS-Fuzz
---
 src/irc/core/irc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/irc/core/irc.c b/src/irc/core/irc.c
index a5bd608b..8ecda85b 100644
--- a/src/irc/core/irc.c
+++ b/src/irc/core/irc.c
@@ -395,6 +395,8 @@ static void unescape_tag(char *tag)
 	for (; *tmp != '\0'; tmp++, tag++) {
 		if (*tmp == '\\') {
 			tmp++;
+			if (*tmp == '\0')
+				break;
 			switch (*tmp) {
 			case ':':
 				*tag = ';';