Ensure that buffer is allocated for the image data before loading.

BlueAndi · Jun 10, 2024 · 47b0504 · 47b0504
1 parent b62f3d3
commit 47b0504
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/lib/YAWidgets/src/GifImgPlayer.cpp b/lib/YAWidgets/src/GifImgPlayer.cpp
@@ -866,7 +866,12 @@ size_t GifImgPlayer::loadImageDataBlock(File& fd, uint8_t* block, size_t size)
     bool        isSuccessful    = true;
     uint8_t     blockSize       = 0U;
 
-    if (false == read(fd, &blockSize, sizeof(blockSize)))
+    if ((nullptr == block) ||
+        (0U == size))
+    {
+        isSuccessful = false;
+    }
+    else if (false == read(fd, &blockSize, sizeof(blockSize)))
     {
         isSuccessful = false;
     }