PT-2025-45714 · Crates.Io · Direct Ring Buffer
Published
2025-10-21
·
Updated
2025-10-21
CVSS v4.0
2.0
Low
| Vector | AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P |
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.Fix
Use of Uninitialized Resource
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Weakness Enumeration
Related Identifiers
Affected Products
Direct Ring Buffer