OSV-2020-2273 Stack-buffer-overflow in perfetto::trace_processor::MemoryTrackerSnapshotParser::EmitRows

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28766 Crash type: Stack-buffer-overflow READ 4 Crash state: perfetto::traceprocessor::MemoryTrackerSnapshotParser::EmitRows perfetto::traceprocessor::MemoryTrackerSnapshotParser::GenerateGraphFromRawNode...