OSV-2021-1605 Heap-use-after-free in perfetto::trace_processor::SliceTracker::GetStackHash

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=41226 Crash type: Heap-use-after-free READ 8 Crash state: perfetto::traceprocessor::SliceTracker::GetStackHash perfetto::traceprocessor::SliceTracker::StartSlice perfetto::traceprocessor::SliceTracker::Scoped...