From 63317a12e89040badf0cc82d82a8b6f64703cd6d Mon Sep 17 00:00:00 2001
From: Georg Sauthoff <mail@georg.so>
Date: Mon, 11 Feb 2019 10:02:21 +0100
Subject: [PATCH 02/11] Fix out-of-bounds read in spanword (#126)

cf. https://sourceforge.net/p/bogofilter/bugs/126/
---
 src/wordlists.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/wordlists.c b/src/wordlists.c
index 735af34..a5d529e 100644
--- a/src/wordlists.c
+++ b/src/wordlists.c
@@ -307,8 +307,10 @@ static char *spanword(char *p)
 {
     const char *delim = ", \t";
     p += strcspn(p, delim);		/* skip to end of word */
-    *p++ = '\0';
-    p += strspn(p, " \t");		/* skip trailing whitespace */
+    if (*p) {
+        *p++ = '\0';
+        p += strspn(p, " \t");		/* skip trailing whitespace */
+    }
     return p;
 }
 
-- 
2.20.1