PT-2025-46130 · Crates.Io · Direct Ring Buffer
Published
2025-10-21
·
Updated
2025-10-21
None
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The safe function
create ring buffer allocates a buffer using Vec::with capacity followed by set len, creating a Box<[T]> containing uninitialized memory.This leads to undefined behavior when functions like
write slices create typed slices (e.g., &mut [bool]) over the uninitialized memory, violating Rust's validity invariants. The issue has been confirmed using Miri.Fixed in version 0.2.2 by using
resize with to properly initialize the buffer with T::default(), adding a T: Default bound to ensure sound initialization. Found an issue in the description? Have something to add? Feel free to write us 👾
Related Identifiers
Affected Products
Direct Ring Buffer