Rust is a systems programming language that runs blazingly fast, prevents segfaults, and guarantees thread safety. The following packages have been upgraded to a later upstream version: rust . Security Fix: * rust: use-after-free or double free in VecDeque::make_contiguous * rust: memory safety violation in String::retain For more details about the security issue, including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page listed in the References section. Additional Changes: For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.4 Release Notes linked from the References section.