https://github.com/ImageMagick/ImageMagick/issues/1621

diff --git a/MagickCore/log.c b/MagickCore/log.c
index afa8621222e79b819916430f12da7b50504f800b..a02c07b19962af7040408f8507f1a5ea93a1ed3d 100644 (file)
--- a/MagickCore/log.c
+++ b/MagickCore/log.c
@@ -1064,6 +1064,8 @@ static char *TranslateEvent(const char *module,const char *function,
         continue;
       }
     p++;
+    if (*p == '\0')
+      break;
     switch (*p)
     {
       case 'c':
@@ -1222,6 +1224,8 @@ static char *TranslateFilename(const LogInfo *log_info)
         continue;
       }
     p++;
+    if (*p == '\0')
+      break;
     switch (*p)
     {
       case '\0':