A flaw was found in linux-pam. The module pam_namespace may use access user-controlled paths without proper protection, allowing local users to elevate their privileges to root via multiple symlink attacks and race conditions.
https://thehackernews.com/2025/06/new-linux-flaws-enable-full-root-access.html
https://bugzilla.redhat.com/show_bug.cgi?id=2372512