off by one exception

ImageMagick · Oct 20, 2023 · 5587a0e · 5587a0e
1 parent 66871a5
commit 5587a0e
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/coders/bmp.c b/coders/bmp.c
@@ -1122,7 +1122,7 @@ static Image *ReadBMPImage(const ImageInfo *image_info,ExceptionInfo *exception)
         (bmp_info.compression == BI_ALPHABITFIELDS))
       {
         pixel_info=AcquireVirtualMemory(image->rows,MagickMax(bytes_per_line,
-          image->columns+256UL)*sizeof(*pixels));
+          image->columns+512UL)*sizeof(*pixels));
         if (pixel_info == (MemoryInfo *) NULL)
           ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
         pixels=(unsigned char *) GetVirtualMemoryBlob(pixel_info);