Reported

May 10, 2022

Issued

May 10, 2022

Package

crossbeam-channel (crates.io)

Type

INFO Unsound

Details

https://github.com/crossbeam-rs/crossbeam/pull/458

Patched

• >=0.4.3

Description

Affected versions of this crate called mem::zeroed() to create values of a user-supplied type T. This is unsound e.g. if T is a reference type (which must be non-null).

The flaw was corrected by avoiding the use of mem::zeroed(), using MaybeUninit instead.