diff --git wp-admin/includes/image-edit.php wp-admin/includes/image-edit.php
index f390b5e..0b06926 100644
--- wp-admin/includes/image-edit.php
+++ wp-admin/includes/image-edit.php
@@ -568,7 +568,7 @@ function wp_save_image( $post_id ) {
 	$post = get_post( $post_id );
 
 	$img = WP_Image_Editor::get_instance( _load_image_to_edit_path( $post_id, 'full' ) );
-	if ( !$img ) {
+	if ( is_wp_error( $img ) ) {
 		$return->error = esc_js( __('Unable to create new image.') );
 		return $return;
 	}
diff --git wp-admin/includes/image.php wp-admin/includes/image.php
index 2a5123e..01bdbad 100644
--- wp-admin/includes/image.php
+++ wp-admin/includes/image.php
@@ -33,8 +33,10 @@ function wp_crop_image( $src_file, $src_x, $src_y, $src_w, $src_h, $dst_w, $dst_
 	}
 
 	$editor = WP_Image_Editor::get_instance( $src_file );
-	$src = $editor->crop( $src_x, $src_y, $src_w, $src_h, $dst_w, $dst_h, $src_abs );
+	if ( is_wp_error( $editor ) )
+		return $editor;
 
+	$src = $editor->crop( $src_x, $src_y, $src_w, $src_h, $dst_w, $dst_h, $src_abs );
 	if ( is_wp_error( $src ) )
 		return $src;
 
@@ -94,7 +96,10 @@ function wp_generate_attachment_metadata( $attachment_id, $file ) {
 		$sizes = apply_filters( 'intermediate_image_sizes_advanced', $sizes );
 
 		$editor = WP_Image_Editor::get_instance( $file );
-		$metadata['sizes'] = $editor->multi_resize( $sizes );
+
+		if( ! is_wp_error( $editor ) ) {
+			$metadata['sizes'] = $editor->multi_resize( $sizes );
+		}
 
 		// fetch additional metadata from exif/iptc
 		$image_meta = wp_read_image_metadata( $file );
diff --git wp-includes/media.php wp-includes/media.php
index 1fc4383..0894e9b 100644
--- wp-includes/media.php
+++ wp-includes/media.php
@@ -383,7 +383,7 @@ function image_make_intermediate_size( $file, $width, $height, $crop = false ) {
 	if ( $width || $height ) {
 		$editor = WP_Image_Editor::get_instance( $file );
 
-		if ( is_wp_error( $editor->resize( $width, $height, $crop ) ) );
+		if ( is_wp_error( $editor ) || is_wp_error( $editor->resize( $width, $height, $crop ) ) );
 			return false;
 
 		$resized_file = $editor->save();