Report 0041-unicycle to RustSec

Author: JOE1994

crates/unicycle/RUSTSEC-0000-0000.md

@@ -0,0 +1,19 @@
+```toml
+[advisory]
+id = "RUSTSEC-0000-0000"
+package = "unicycle"
+date = "2020-11-15"
+url = "https://github.com/udoprog/unicycle/issues/8"
+categories = ["memory-corruption"]
+
+[versions]
+patched = [">= 0.7.1"]
+```
+
+# PinSlab<T> and Unordered<T, S> need bounds on their Send/Sync traits
+
+Affected versions of this crate unconditionally implemented `Send` & `Sync` for types `PinSlab<T>` & `Unordered<T, S>`. This allows sending non-Send types to other threads and concurrently accessing non-Sync types from multiple threads.
+
+This can result in a data race & memory corruption when types that provide internal mutability without synchronization are contained within `PinSlab<T>` or `Unordered<T, S>` and accessed concurrently from multiple threads.
+
+The flaw was corrected in commits 92f40b4 & 6a6c367 by adding trait bound `T: Send` to `Send` impls for `PinSlab<T>` & `Unordered<T, S>` and adding `T: Sync` to `Sync` impls for `PinSlab<T>` & `Unordered<T, S>`.