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RUSTSEC-2023-0126
Aliasing violation in `OrdSet` insertion
Details
Inserting into an `im::OrdSet` (for example by collecting an iterator into one) can violate Rust's aliasing rules: Miri reports a stacked borrows violation in `sized_chunks::Chunk::force_copy()`, which is called during insertion, where a shared borrow is invalidated by a unique borrow before the read through it completes. This is undefined behavior, reachable from safe code.
No fixed version is available, as the crate is unmaintained; its GitHub repository was archived by the owner on 2026-05-03.
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Affected packages
crates.io/im
Introduced in:
0.0.0-0No fixed version published yet for im. Pin to a known-safe version or switch to an alternative.