Fix bounds checks

airlift · Feb 11, 2024 · f95ac48 · f95ac48
1 parent 3c1c5e2
commit f95ac48
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Showing 2 changed files with 4 additions and 4 deletions.
diff --git a/src/main/java/io/airlift/compress/zstd/ZstdFrameDecompressor.java b/src/main/java/io/airlift/compress/zstd/ZstdFrameDecompressor.java
@@ -170,17 +170,17 @@ public int decompress(
                 int decodedSize;
                 switch (blockType) {
                     case RAW_BLOCK:
-                        verify(inputAddress + blockSize <= inputLimit, input, "Not enough input bytes");
+                        verify(input + blockSize <= inputLimit, input, "Not enough input bytes");
                         decodedSize = decodeRawBlock(inputBase, input, blockSize, outputBase, output, outputLimit);
                         input += blockSize;
                         break;
                     case RLE_BLOCK:
-                        verify(inputAddress + 1 <= inputLimit, input, "Not enough input bytes");
+                        verify(input + 1 <= inputLimit, input, "Not enough input bytes");
                         decodedSize = decodeRleBlock(blockSize, inputBase, input, outputBase, output, outputLimit);
                         input += 1;
                         break;
                     case COMPRESSED_BLOCK:
-                        verify(inputAddress + blockSize <= inputLimit, input, "Not enough input bytes");
+                        verify(input + blockSize <= inputLimit, input, "Not enough input bytes");
                         decodedSize = decodeCompressedBlock(inputBase, input, blockSize, outputBase, output, outputLimit, frameHeader.windowSize, outputAddress);
                         input += blockSize;
                         break;

diff --git a/src/test/java/io/airlift/compress/zstd/TestZstd.java b/src/test/java/io/airlift/compress/zstd/TestZstd.java
@@ -258,6 +258,6 @@ public void testBadHuffmanData()
 
         assertThatThrownBy(() -> new ZstdDecompressor().decompress(data, 0, data.length, new byte[10], 0, 10))
                 .isInstanceOf(MalformedInputException.class)
-                .hasMessageStartingWith("Input is corrupted");
+                .hasMessageStartingWith("Not enough input bytes");
     }
 }