Index: lldb/source/Core/ValueObjectChild.cpp
===================================================================
--- lldb/source/Core/ValueObjectChild.cpp
+++ lldb/source/Core/ValueObjectChild.cpp
@@ -170,6 +170,8 @@
               if (bitfield_end > *type_bit_size) {
                 uint64_t overhang_bytes =
                     (bitfield_end - *type_bit_size + 7) / 8;
+                if (overhang_bytes > m_bitfield_bit_offset / 8)
+                  overhang_bytes = m_bitfield_bit_offset / 8;
                 m_byte_offset += overhang_bytes;
                 m_bitfield_bit_offset -= overhang_bytes * 8;
               }