A flaw was found in util-linux. This vulnerability allows a heap buffer overread when processing 256-byte usernames, specifically within the `setpwnam()` function, affecting SUID (Set User ID) login-utils utilities writing to the password database.Referenceshttps://access.redhat.com/errata/RHSA-2026:1696https://access.redhat.com/errata/RHSA-2026:1852https://access.redhat.com/errata/RHSA-2026:1913https://access.redhat.com/errata/RHSA-2026:2485https://access.redhat.com/errata/RHSA-2026:2563https://access.redhat.com/errata/RHSA-2026:2737https://access.redhat.com/errata/RHSA-2026:2800https://access.redhat.com/errata/RHSA-2026:3406https://access.redhat.com/errata/RHSA-2026:4943https://access.redhat.com/errata/RHSA-2026:7180https://access.redhat.com/security/cve/CVE-2025-14104https://bugzilla.redhat.com/show_bug.cgi?id=2419369
