smallvec creates uninitialized value of any type · GHSA-66p5-j55p-32r9 · GitHub Advisory Database · GitHub

smallvec creates uninitialized value of any type

Moderate severity GitHub Reviewed Published Aug 25, 2021 to the GitHub Advisory Database • Updated Jan 11, 2023

Package

smallvec (Rust)

Affected versions

< 0.6.13

Patched versions

0.6.13

Description

Affected versions of this crate called mem::uninitialized() 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 and thus may not remain uninitialized).

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

References

Reviewed Aug 6, 2021

Published to the GitHub Advisory Database Aug 25, 2021

Last updated Jan 11, 2023