Reported

May 10, 2022

Issued

May 10, 2022 (last modified: June 13, 2023)

Package

crossbeam-channel (crates.io)

Type

INFO Unsound

Aliases

• GHSA-9g55-pg62-m8hh

References

• 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.

Advisory available under CC0-1.0 license.