bugfix for local pool

CHANGELOG.md

@@ -22,6 +22,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
   https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/745
 - Small tweak for version getter
   https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/744
+- Important bugfix for `LocalPool::delete` function, where an overflow could possibly lead to UB.
 
 ## Added
 

src/fsfw/storagemanager/LocalPool.cpp

@@ -89,7 +89,7 @@ ReturnValue_t LocalPool::deleteData(store_address_t storeId) {
   ReturnValue_t status = returnvalue::OK;
   size_type pageSize = getSubpoolElementSize(storeId.poolIndex);
   if ((pageSize != 0) and (storeId.packetIndex < numberOfElements[storeId.poolIndex])) {
-    uint16_t packetPosition = getRawPosition(storeId);
+    size_type packetPosition = getRawPosition(storeId);
     uint8_t* ptr = &store[storeId.poolIndex][packetPosition];
     std::memset(ptr, 0, pageSize);
     // Set free list