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by weinzierl 504 days ago
Exactly, and also MIRI catches all of these, so with a tiny little extra effort world is in order again.

Moreover, if I remember correctly, they all are made possible by a single (long-standing) compiler bug that eventually will be fixed.

Previously discussed: https://news.ycombinator.com/item?id=39440808

I think this mindset is the big difference. We're not perfect, but we're working on it.
1 comments
zyedidia 504 days ago
The bug used by that repository [1] isn't the only one that can be used to escape the Safe Rust type system. There are a couple others I've tried [2] [3], and the Rust issue tracker currently lists 92 unsoundness bugs (though only some of them are general-purpose escapes), and that's only the ones we know about.

These bugs are not really a problem in practice though as long as the developer is not malicious. However, they are a problem for supply chain security or any case where the Rust source is fully untrusted.

[1]: https://github.com/rust-lang/rust/issues/25860

[2]: https://github.com/rust-lang/rust/issues/57893

[3]: https://github.com/rust-lang/rust/issues/133361

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