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Fedora 42 rust-scx_rusty Faces Critical CVE-2026-33056 Buffer Overflow

fedora
Calendar Grey April 2, 2026
Dist Fedora Esm H88
Critical update for Fedora 42: rust-scx_rusty rebuilt for CVE-2026-33056 enhances kernel thread scheduling.
Rebuilt with rust-tar 0.4.45 for CVE-2026-33056

Summary

A multi-domain, BPF / user space hybrid scheduler used within sched_ext,

which is a Linux kernel feature which enables implementing kernel thread

schedulers in BPF and dynamically loading them.

https://github.com/sched-ext/scx/tree/main

Update Information:

Rebuilt with rust-tar 0.4.45 for CVE-2026-33056

Change Log

* Mon Mar 23 2026 Benjamin A. Beasley - 0.5.4-8 - Rebuilt with rust-tar 0.4.45 for CVE-2026-33056 - Update License based on a current Rawhide build

References

Fedora Update Notification FEDORA-2026-66bd2898f2 2026-04-02 00:43:07.039666+00:00 Name : rust-scx_rusty Product : Fedora 42 Version : 0.5.4 Release : 8.fc42 URL : https://crates.io/crates/scx_rusty Summary : A multi-domain, BPF / user space hybrid scheduler Description : A multi-domain, BPF / user space hybrid scheduler used within sched_ext, which is a Linux kernel feature which enables implementing kernel thread schedulers in BPF and dynamically loading them. https://github.com/sched-ext/scx/tree/main

Update Instructions

This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-66bd2898f2' at the command line. For more information, refer to the dnf documentation available at http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label

Severity
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Name: rust-scx_rusty
Product: Fedora 42
Version: 0.5.4
Release: 8.fc42
Summary: A multi-domain, BPF / user space hybrid scheduler

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