https://github.com/ImageMagick/ImageMagick/pull/1316

diff --git a/MagickCore/string.c b/MagickCore/string.c
index 245986ef9cfdb4063ce13dbc0a681b5a11cd7d4c..3184118823e51e519dafc6412fb0574fe901700e 100644 (file)
--- a/MagickCore/string.c
+++ b/MagickCore/string.c
@@ -2235,6 +2235,8 @@ MagickExport double *StringToArrayOfDoubles(const char *string,ssize_t *count,
   assert(exception != (ExceptionInfo *) NULL);
   assert(exception->signature == MagickCoreSignature);
   *count=0;
+  if (string == (char *) NULL)
+    return((double *) NULL);  /* no value found */
   i=0;
   p=string;
   while (*p != '\0')