https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=6819

diff --git a/coders/pdb.c b/coders/pdb.c
index e03693de502b4bca6675f1038aa8aa2a14f96127..977f1077f7daee2b63748fac96299da16e88de80 100644 (file)
--- a/coders/pdb.c
+++ b/coders/pdb.c
@@ -420,6 +420,7 @@ static Image *ReadPDBImage(const ImageInfo *image_info,ExceptionInfo *exception)
     sizeof(*pixels));
   if (pixels == (unsigned char *) NULL)
     ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
+  (void) ResetMagickMemory(pixels,0,(packets+257UL)*image->rows*sizeof(*pixels));
   switch (pdb_image.version & 0x07) 
   {
     case 0: