Add advisory for data race in max7301

crates/max7301/RUSTSEC-0000-0000.md

@@ -0,0 +1,22 @@
+```toml
+[advisory]
+id = "RUSTSEC-0000-0000"
+package = "max7301"
+date = "2020-12-18"
+url = "https://github.com/edarc/max7301/issues/1"
+categories = ["memory-corruption"]
+keywords = ["concurrency"]
+
+[versions]
+patched = []
+```
+
+# ImmediateIO and TransactionalIO can cause data races
+
+The `ImmediateIO` and `TransactionalIO` types implement `Sync` for all contained
+`Expander<EI>` types regardless of if the `Expander` itself is safe to use
+across threads.
+
+As the `IO` types allow retrieving the `Expander`, this can lead to non-thread
+safe types being sent across threads as part of the `Expander` leading to data
+races.