diff --git a/lldb/source/Utility/Stream.cpp b/lldb/source/Utility/Stream.cpp
--- a/lldb/source/Utility/Stream.cpp
+++ b/lldb/source/Utility/Stream.cpp
@@ -344,8 +344,8 @@
     for (size_t i = 0; i < src_len; ++i)
       _PutHex8(src[i], false);
   } else {
-    for (size_t i = src_len - 1; i < src_len; --i)
-      _PutHex8(src[i], false);
+    for (size_t i = src_len; i > 0; --i)
+      _PutHex8(src[i - 1], false);
   }
   if (!binary_was_set)
     m_flags.Clear(eBinary);
@@ -357,6 +357,7 @@
                                  ByteOrder src_byte_order,
                                  ByteOrder dst_byte_order) {
   ByteDelta delta(*this);
+
   if (src_byte_order == eByteOrderInvalid)
     src_byte_order = m_byte_order;
 
@@ -370,8 +371,8 @@
     for (size_t i = 0; i < src_len; ++i)
       _PutHex8(src[i], false);
   } else {
-    for (size_t i = src_len - 1; i < src_len; --i)
-      _PutHex8(src[i], false);
+    for (size_t i = src_len; i > 0; --i)
+      _PutHex8(src[i - 1], false);
   }
   if (binary_is_set)
     m_flags.Set(eBinary);
diff --git a/lldb/unittests/Utility/StreamTest.cpp b/lldb/unittests/Utility/StreamTest.cpp
--- a/lldb/unittests/Utility/StreamTest.cpp
+++ b/lldb/unittests/Utility/StreamTest.cpp
@@ -504,6 +504,30 @@
 #endif
 }
 
+TEST_F(StreamTest, PutRawBytesZeroLenght) {
+  uint32_t value = 0x12345678;
+
+  s.PutRawBytes(static_cast<void *>(&value), 0, hostByteOrder,
+                lldb::eByteOrderLittle);
+  EXPECT_EQ(0U, s.GetWrittenBytes());
+
+  s.PutRawBytes(static_cast<void *>(&value), 0, hostByteOrder,
+                lldb::eByteOrderBig);
+  EXPECT_EQ(0U, s.GetWrittenBytes());
+}
+
+TEST_F(StreamTest, PutBytesAsRawHex8ZeroLenght) {
+  uint32_t value = 0x12345678;
+
+  s.PutBytesAsRawHex8(static_cast<void *>(&value), 0, hostByteOrder,
+                      lldb::eByteOrderLittle);
+  EXPECT_EQ(0U, s.GetWrittenBytes());
+
+  s.PutBytesAsRawHex8(static_cast<void *>(&value), 0, hostByteOrder,
+                      lldb::eByteOrderBig);
+  EXPECT_EQ(0U, s.GetWrittenBytes());
+}
+
 // ULEB128 support for binary streams.
 
 TEST_F(BinaryStreamTest, PutULEB128OneByte) {