FatGid: FreeBSD 14.x kernel local privilege escalation | Hacker News

Researchers disclosed a FreeBSD 14.x kernel bug that can lead to local privilege escalation for unprivileged users.

The fix landed in the main branch during a refactor, but it was not backported to FreeBSD 14.4.

FreeBSD 15.0 still contains the same typo, though the published exploit chain does not provide LPE there.

The disclosure clarifies which branches remain affected and whether the issue is a privilege-escalation risk or mainly a denial-of-service concern.