CVE-2026-85089: Use of Uninitialized Resource

FreeRDP versions 3.0.0 through 3.30.0 before 3.31.0 transmit uninitialized heap memory in Save Session Info PDU reserved padding fields. Three PDU writers in libfreerdp/core/info.c rdpwritelogoninfov2, rdpwritelogoninfoplain, and rdpwritelogoninfoex use StreamSeek instead of StreamZero for reserv...