Uninitialized pointer field

The pointer field will point to an arbitrary memory location, any attempt to write may cause corruption. A pointer field is not initialized in the constructor
/src/mongo/db/storage/ephemeral_for_test/ephemeral_for_test_sorted_impl.h:93: UNINIT_CTOR 115968 Class member declaration for "_desc".
/src/mongo/db/storage/ephemeral_for_test/ephemeral_for_test_sorted_impl.cpp:1245: UNINIT_CTOR 115968 Non-static class member "_desc" is not initialized in this constructor nor in any functions that it calls.