diff --git a/src/fsfw/tmtcpacket/ReadablePacketIF.h b/src/fsfw/tmtcpacket/ReadablePacketIF.h
index 01478273..bbffbe10 100644
--- a/src/fsfw/tmtcpacket/ReadablePacketIF.h
+++ b/src/fsfw/tmtcpacket/ReadablePacketIF.h
@@ -5,6 +5,8 @@
 
 class ReadablePacketIF {
  public:
+  virtual ~ReadablePacketIF() = default;
+
   /**
    * This method returns a raw uint8_t pointer to the readable data
    */
diff --git a/src/fsfw/tmtcpacket/pus/RawUserDataReaderIF.h b/src/fsfw/tmtcpacket/pus/RawUserDataReaderIF.h
index e4e515f8..799b7940 100644
--- a/src/fsfw/tmtcpacket/pus/RawUserDataReaderIF.h
+++ b/src/fsfw/tmtcpacket/pus/RawUserDataReaderIF.h
@@ -6,8 +6,9 @@
 
 class RawUserDataReaderIF {
  public:
-  virtual const uint8_t* getUserData() const = 0;
-  virtual size_t getUserDataLen() const = 0;
+  ~RawUserDataReaderIF() = default;
+  [[nodiscard]] virtual const uint8_t* getUserData() const = 0;
+  [[nodiscard]] virtual size_t getUserDataLen() const = 0;
 };
 
 #endif  // FSFW_TMTCPACKET_RAWDATAIF_H
diff --git a/src/fsfw/tmtcpacket/pus/tc/PusTcReader.cpp b/src/fsfw/tmtcpacket/pus/tc/PusTcReader.cpp
index c96bed65..bac6d543 100644
--- a/src/fsfw/tmtcpacket/pus/tc/PusTcReader.cpp
+++ b/src/fsfw/tmtcpacket/pus/tc/PusTcReader.cpp
@@ -23,7 +23,9 @@ ReturnValue_t PusTcReader::parseData(bool withCrc) {
   if (result != HasReturnvaluesIF::RETURN_OK) {
     return result;
   }
-  if (spReader.getBufSize() < PusTcIF::MIN_SIZE) {
+  // We already have access to the space packet fields here, so we can perform a sanity check
+  // on the length field
+  if (spReader.getFullPacketLen() < spReader.getBufSize()) {
     return SerializeIF::STREAM_TOO_SHORT;
   }
 
diff --git a/src/fsfw/tmtcpacket/pus/tm/PusTmReader.cpp b/src/fsfw/tmtcpacket/pus/tm/PusTmReader.cpp
index 024d6ac8..807dd8e0 100644
--- a/src/fsfw/tmtcpacket/pus/tm/PusTmReader.cpp
+++ b/src/fsfw/tmtcpacket/pus/tm/PusTmReader.cpp
@@ -57,7 +57,7 @@ ReturnValue_t PusTmReader::parseData(bool crcCheck) {
   if (result != HasReturnvaluesIF::RETURN_OK) {
     return result;
   }
-  if (spReader.getBufSize() < PusTmIF::MIN_SIZE) {
+  if (spReader.getFullPacketLen() < spReader.getBufSize()) {
     return SerializeIF::STREAM_TOO_SHORT;
   }