RUSTSEC-2020-0106

Queues allow non-Send types to be sent to other threads, allowing data races

Issued
Package
multiqueue2 (crates.io)
Type
Unsound
Categories
  • memory-corruption
  • thread-safety
Aliases
Details
https://github.com/abbychau/multiqueue2/issues/10
Patched
  • >=0.1.7

Description

Affected versions of this crate unconditionally implemented Send for types used in queue implementations (InnerSend<RW, T>, InnerRecv<RW, T>, FutInnerSend<RW, T>, FutInnerRecv<RW, T>).

This allows users to send non-Send types to other threads, which can lead to data race bugs or other undefined behavior.

The flaw was corrected in v0.1.7 by adding T: Send bound to to the Send impl of four data types explained above.

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