https://github.com/ImageMagick/ImageMagick/issues/719

diff --git a/coders/tiff.c b/coders/tiff.c
index fdff7f43bcac033018df9008daa0d01328954761..77512c668a8eb31fabc70daa04daf72b4f583228 100644 (file)
--- a/coders/tiff.c
+++ b/coders/tiff.c
@@ -2224,6 +2224,8 @@ static void TIFFIgnoreTags(TIFF *tiff)
   i=0;
   p=tags;
   ignore=(TIFFFieldInfo *) AcquireQuantumMemory(count,sizeof(*ignore));
+  if (ignore == (TIFFFieldInfo *) NULL)
+    return;
   /* This also sets field_bit to 0 (FIELD_IGNORE) */
   ResetMagickMemory(ignore,0,count*sizeof(*ignore));
   while (*p != '\0')