CVE-2026-68908 libIEC61850: Oversized RptID can trigger invalid free of a stack-backed visible string in the report send path

libIEC61850 is an open-source implementation of IEC 61850 client and server protocols including MMS, GOOSE, Sampled Values, and R-Session. Prior to 1.6.2, ReportingRCBWriteAccessHandler accepts an RptID longer than 129 bytes in the report-control-block write path. When GI later causes...