Ubuntu 26.10 has completed its transition to Rust-based coreutils, replacing the remaining GNU C utilities including cp, mv, and rm.
Canonical has finalized its transition to memory-safe userland tools in Ubuntu 26.10, fully adopting Rust-based utilities from the upstream uutils project. While previous releases migrated most utilities, critical file-manipulation commands like cp, mv, and rm had been temporarily retained from GNU coreutils while upstream developers addressed time-of-check to time-of-use (TOCTOU) vulnerabilities. Following comprehensive security audits and patches supported by Canonical and the Trifecta Tech Foundation, the distribution now ships an entirely Rust-powered coreutils suite with full drop-in GNU compatibility.
Replacing decades of battle-tested GNU C coreutils in the world's flagship desktop Linux distribution is a massive milestone for memory safety, demonstrating that Rust rewrites can realistically conquer mission-critical base systems.
- –Canonical's deliberate staged rollout—holding back complex commands like rm and cp until concurrency vulnerabilities were audited and fixed—provides an exemplary template for system-level migrations.
- –Direct corporate investment into upstream security audits and foundations proved essential to hardening community open-source code for distro-scale production.
- –This transition sets a precedent that will intensify pressure on Debian, Fedora, and other major distributions to accelerate their own memory-safe modernization efforts.
DISCOVERED
1h ago
2026-09-14
PUBLISHED
4h ago
2026-09-14
RELEVANCE
AUTHOR
theanonymousone
