Handle early EOF during ZLib inflate

src/ImageSharp/Compression/Zlib/ZlibInflateStream.cs

@@ -161,29 +161,25 @@ public override int Read(byte[] buffer, int offset, int count)
             bytesToRead = Math.Min(count - totalBytesRead, this.currentDataRemaining);
             this.currentDataRemaining -= bytesToRead;
             bytesRead = this.innerStream.Read(buffer, offset, bytesToRead);
+            if (bytesRead == 0)
+            {
+                return totalBytesRead;
+            }
+
             totalBytesRead += bytesRead;
         }
 
         return totalBytesRead;
     }
 
     /// <inheritdoc/>
-    public override long Seek(long offset, SeekOrigin origin)
-    {
-        throw new NotSupportedException();
-    }
+    public override long Seek(long offset, SeekOrigin origin) => throw new NotSupportedException();
 
     /// <inheritdoc/>
-    public override void SetLength(long value)
-    {
-        throw new NotSupportedException();
-    }
+    public override void SetLength(long value) => throw new NotSupportedException();
 
     /// <inheritdoc/>
-    public override void Write(byte[] buffer, int offset, int count)
-    {
-        throw new NotSupportedException();
-    }
+    public override void Write(byte[] buffer, int offset, int count) => throw new NotSupportedException();
 
     /// <inheritdoc/>
     protected override void Dispose(bool disposing)
@@ -246,22 +242,17 @@ private bool InitializeInflateStream(bool isCriticalChunk)
                     // CINFO is not defined in this specification for CM not equal to 8.
                     throw new ImageFormatException($"Invalid window size for ZLIB header: cinfo={cinfo}");
                 }
-                else
-                {
-                    return false;
-                }
+
+                return false;
             }
         }
+        else if (isCriticalChunk)
+        {
+            throw new ImageFormatException($"Bad method for ZLIB header: cmf={cmf}");
+        }
         else
         {
-            if (isCriticalChunk)
-            {
-                throw new ImageFormatException($"Bad method for ZLIB header: cmf={cmf}");
-            }
-            else
-            {
-                return false;
-            }
+            return false;
         }
 
         // The preset dictionary.

tests/ImageSharp.Tests/Formats/Tiff/TiffDecoderTests.cs

@@ -677,6 +677,21 @@ public void TiffDecoder_ThrowsException_WithCircular_IFD_Offsets<TPixel>(TestIma
                 }
             });
 
+    [Theory]
+    [WithFile(Tiled0000023664, PixelTypes.Rgba32)]
+    public void TiffDecoder_CanDecode_TiledWithBadZlib<TPixel>(TestImageProvider<TPixel> provider)
+        where TPixel : unmanaged, IPixel<TPixel>
+    {
+        using Image<TPixel> image = provider.GetImage(TiffDecoder.Instance);
+
+        // ImageMagick cannot decode this image.
+        image.DebugSave(provider);
+        image.CompareToReferenceOutput(
+            ImageComparer.Exact,
+            provider,
+            appendPixelTypeToFileName: false);
+    }
+
     [Theory]
     [WithFileCollection(nameof(MultiframeTestImages), PixelTypes.Rgba32)]
     public void DecodeMultiframe<TPixel>(TestImageProvider<TPixel> provider)

tests/ImageSharp.Tests/TestImages.cs

@@ -981,6 +981,7 @@ public static class Tiff
         public const string Issues2255 = "Tiff/Issues/Issue2255.png";
         public const string Issues2435 = "Tiff/Issues/Issue2435.tiff";
         public const string JpegCompressedGray0000539558 = "Tiff/Issues/JpegCompressedGray-0000539558.tiff";
+        public const string Tiled0000023664 = "Tiff/Issues/tiled-0000023664.tiff";
 
         public const string SmallRgbDeflate = "Tiff/rgb_small_deflate.tiff";
         public const string SmallRgbLzw = "Tiff/rgb_small_lzw.tiff";