Obsolete pcre: Prevent invalid memory accesses

[privoxy.git] / pcre / pcre.c

diff --git a/pcre/pcre.c b/pcre/pcre.c
index 4f8f82c..9cd178e 100644 (file)
--- a/pcre/pcre.c
+++ b/pcre/pcre.c
@@ -2050,7 +2050,7 @@ for (;; ptr++)
 
     /* This "while" is the end of the "do" above. */
 
-    while (length < MAXLIT && (cd->ctypes[c = *(++ptr)] & ctype_meta) == 0);
+    while (*ptr && length < MAXLIT && (cd->ctypes[c = *(++ptr)] & ctype_meta) == 0);
 
     /* Update the last character and the count of literals */