The stream cannot be referenced/disposed once passed to SKTypeface.

docs/en/SkiaSharp/SKTypeface.xml

@@ -228,15 +228,15 @@
         <Parameter Name="index" Type="System.Int32" />
       </Parameters>
       <Docs>
-        <param name="stream">Input stream</param>
-        <param name="index">the font face index.</param>
-        <summary>Return a new typeface given a stream. </summary>
+        <param name="stream">The input stream.</param>
+        <param name="index">The font face index.</param>
+        <summary>Return a new typeface given a stream. Ownership of the stream is transferred, so the caller must not reference it again.</summary>
         <returns>If the stream is not a valid font file, returns <paramref name="null" />. </returns>
         <remarks>
           <para>
           </para>
           <example>
-            <code lang="C#"><![CDATA[using (var stream = new SKFileStream (“myfont.ttf"))
+            <code lang="C#"><![CDATA[var stream = new SKFileStream (“myfont.ttf”);
 using (var tf = SKTypeface.FromStream (stream)) {
     paint.Color = XamDkBlue;
     paint.TextSize = 60;

samples/SharedDemo/SkiaSharp.Demos.cs

@@ -289,8 +289,8 @@ namespace SkiaSharp
 					canvas.DrawText (text, 50, 50, paint);
 				}
 
-				using (var stream = new SKFileStream (CustomFontPath))
-				using (var tf = SKTypeface.FromStream (stream)) {
+				var fileStream = new SKFileStream (CustomFontPath);
+				using (var tf = SKTypeface.FromStream (fileStream)) {
 					paint.Color = XamDkBlue;
 					paint.TextSize = 60;
 					paint.Typeface = tf;
@@ -305,7 +305,7 @@ namespace SkiaSharp
 				using (var memory = new MemoryStream ()) {
 					resource.CopyTo (memory);
 					var bytes = memory.ToArray ();
-					using (var stream = new SKMemoryStream (bytes))
+					var stream = new SKMemoryStream (bytes);
 					using (var tf = SKTypeface.FromStream (stream)) {
 						paint.Color = XamLtBlue;
 						paint.TextSize = 60;
@@ -315,9 +315,9 @@ namespace SkiaSharp
 					}
 				}
 
-				using (var resource = assembly.GetManifestResourceStream (fontName))
-				using (var stream = new SKManagedStream (resource))
-				using (var tf = SKTypeface.FromStream (stream)) {
+				var managedResource = assembly.GetManifestResourceStream (fontName);
+				var managedStream = new SKManagedStream (managedResource, true);
+				using (var tf = SKTypeface.FromStream (managedStream)) {
 					paint.Color = XamPurple;
 					paint.TextSize = 60;
 					paint.Typeface = tf;

skia

@@ -1 +1 @@
-Subproject commit deb4a7997785aa732d385d4dab2d799fb29033aa
+Subproject commit 6fde4a60e6d70be6b78935a9b33a7b509e23e73e