Question 1

Is there a bug in zerocopy 0.7.0?

Accepted Answer

Some Ref methods are unsound with some type parameters The `Ref` methods `into_ref`, `into_mut`, `into_slice`, and `into_slice_mut` are unsound
and may allow safe code to exhibit undefined behavior when used with `Ref<B, T>` where `B`
is [`cell::Ref`](https://doc.rust-lang.org/core/cell/struct.Ref.html) or
[`cell::RefMut`](https://doc.rust-lang.org/core/cell/struct.RefMut.html). Note that these
methods remain sound when used with `B` types other than `cell::Ref` or `cell::RefMut`.

See https://github.com/google/zerocopy/issues/716 for a more in-depth analysis.

The current plan is to yank the affected versions soon. See
https://github.com/google/zerocopy/issues/679 for more detail. Fixed in zerocopy 0.7.31.

Question 2

Is there a bug in zerocopy 0.2.2?

Accepted Answer

Zerocopy: Some Ref methods are unsound with some type parameters The `Ref` methods `into_ref`, `into_mut`, `into_slice`, and `into_slice_mut` are unsound and may allow safe code to exhibit undefined behavior when used with `Ref<B, T>` where `B` is [`cell::Ref`](https://doc.rust-lang.org/core/cell/struct.Ref.html) or [`cell::RefMut`](https://doc.rust-lang.org/core/cell/struct.RefMut.html). Note that these methods remain sound when used with `B` types other than `cell::Ref` or `cell::RefMut`.

See https://github.com/google/zerocopy/issues/716 for a more in-depth analysis.

The current plan is to yank the affected versions soon. See https://github.com/google/zerocopy/issues/679 for more detail.
 Fixed in zerocopy 0.2.9.

Question 3

Is there a bug in zerocopy 0.2.2?

Accepted Answer

Ref methods into_ref, into_mut, into_slice, and into_slice_mut are unsound when used with cell::Ref or cell::RefMut *This advisory is also published as [RUSTSEC-2023-0074](https://rustsec.org/advisories/RUSTSEC-2023-0074.html).*

The `Ref` methods `into_ref`, `into_mut`, `into_slice`, and `into_slice_mut` are unsound and may allow safe code to exhibit undefined behavior when used with `Ref<B, T>` where `B` is [`cell::Ref`](https://doc.rust-lang.org/core/cell/struct.Ref.html) or [`cell::RefMut`](https://doc.rust-lang.org/core/cell/struct.RefMut.html). Note that these methods remain sound when used with `B` types other than `cell::Ref` or `cell::RefMut`.

See https://github.com/google/zerocopy/issues/716 for a more in-depth analysis.

The current plan is to yank the affected versions soon. See https://github.com/google/zerocopy/issues/679 for more detail.
 Fixed in zerocopy 0.2.9.

Severity	Affected	Fixed in	Title	Status	Source
medium	0.7.0	0.7.31	Some Ref methods are unsound with some type parameters The `Ref` methods `into_ref`, `into_mut`, `into_slice`, and `into_slice_mut` are unsound and may allow safe code to exhibit undefined behavior when used with `Ref<B, T>` where `B` is [`cell::Ref`](https://doc.rust-lang.org/core/cell/struct.Ref.html) or [`cell::RefMut`](https://doc.rust-lang.org/core/cell/struct.RefMut.html). Note that these methods remain sound when used with `B` types other than `cell::Ref` or `cell::RefMut`. See https://github.com/google/zerocopy/issues/716 for a more in-depth analysis. The current plan is to yank the affected versions soon. See https://github.com/google/zerocopy/issues/679 for more detail.	fixed	osv:RUSTSEC-2023-0074
medium	0.2.2	0.2.9	Zerocopy: Some Ref methods are unsound with some type parameters The `Ref` methods `into_ref`, `into_mut`, `into_slice`, and `into_slice_mut` are unsound and may allow safe code to exhibit undefined behavior when used with `Ref<B, T>` where `B` is [`cell::Ref`](https://doc.rust-lang.org/core/cell/struct.Ref.html) or [`cell::RefMut`](https://doc.rust-lang.org/core/cell/struct.RefMut.html). Note that these methods remain sound when used with `B` types other than `cell::Ref` or `cell::RefMut`. See https://github.com/google/zerocopy/issues/716 for a more in-depth analysis. The current plan is to yank the affected versions soon. See https://github.com/google/zerocopy/issues/679 for more detail.	fixed	osv:GHSA-rjhf-4mh8-9xjq
low	0.2.2	0.2.9	Ref methods into_ref, into_mut, into_slice, and into_slice_mut are unsound when used with cell::Ref or cell::RefMut This advisory is also published as [RUSTSEC-2023-0074](https://rustsec.org/advisories/RUSTSEC-2023-0074.html). The `Ref` methods `into_ref`, `into_mut`, `into_slice`, and `into_slice_mut` are unsound and may allow safe code to exhibit undefined behavior when used with `Ref<B, T>` where `B` is [`cell::Ref`](https://doc.rust-lang.org/core/cell/struct.Ref.html) or [`cell::RefMut`](https://doc.rust-lang.org/core/cell/struct.RefMut.html). Note that these methods remain sound when used with `B` types other than `cell::Ref` or `cell::RefMut`. See https://github.com/google/zerocopy/issues/716 for a more in-depth analysis. The current plan is to yank the affected versions soon. See https://github.com/google/zerocopy/issues/679 for more detail.	fixed	osv:GHSA-3mv5-343c-w2qg

zerocopy known bugs