From 2642a446b30d5ed66f25accd1d540f61059e15bf Mon Sep 17 00:00:00 2001
From: Joe McGill <joemcgill@gmail.com>
Date: Tue, 2 Feb 2021 04:27:06 +0000
Subject: [PATCH] Media: Sanity check image meta in
 'wp_image_src_get_dimensions'.

This fixes a potential illegal offset error introduced in [50134] if the `$image_meta` doesn't include a `file` key.

Props dd32.
Fixes #51865.

Built from https://develop.svn.wordpress.org/trunk@50136


git-svn-id: http://core.svn.wordpress.org/trunk@49815 1a063a9b-81f0-0310-95a4-ce76da25c4cd
---
 wp-includes/media.php   | 5 ++++-
 wp-includes/version.php | 2 +-
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/wp-includes/media.php b/wp-includes/media.php
index 42b3e23363..088e6868c7 100644
--- a/wp-includes/media.php
+++ b/wp-includes/media.php
@@ -1602,7 +1602,10 @@ function wp_image_src_get_dimensions( $image_src, $image_meta, $attachment_id =
 	$dimensions = false;
 
 	// Is it a full size image?
-	if ( strpos( $image_src, $image_meta['file'] ) !== false ) {
+	if (
+		isset( $image_meta['file'] ) &&
+		strpos( $image_src, $image_meta['file'] ) !== false
+	) {
 		$dimensions = array(
 			(int) $image_meta['width'],
 			(int) $image_meta['height'],
diff --git a/wp-includes/version.php b/wp-includes/version.php
index ea7f042b19..e38f07d6d3 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.7-alpha-50135';
+$wp_version = '5.7-alpha-50136';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.