From: Philipp Takacs <philipp@bureaucracy.de>
Date: Sun, 14 May 2023 00:12:49 +0000 (+0200)
Subject: fix threadid NULL deref
X-Git-Url: http://git.marmaro.de/?p=mmh;a=commitdiff_plain;h=fc888ece449bca0362696d561cb0887b128e045d

fix threadid NULL deref

strchr returns NULL if the character is not found.
---

diff --git a/sbr/getthreadid.c b/sbr/getthreadid.c
index a1ad7a0..abac78d 100644
--- a/sbr/getthreadid.c
+++ b/sbr/getthreadid.c
@@ -54,8 +54,11 @@ threadid(char *msgid, char *referens)
 	}
 
 	start = strchr(threadfrom, '<');
+	if (!start) {
+		return NULL;
+	}
 	end = strchr(start, '>');
-	if (!(*start) || !(*end)) {
+	if (!end) {
 		return NULL;
 	}
 	*end = '\0';