Posted by WhyNotHugo 4 hours ago
This appears to come from dressing up like Elton John in a feather suit and hiring a marketing team.
Is there something in this website that feels unnecessary? It seems like a good format of sharing high quality information.
This looks like a full bug into a complete root escalation of a kernel. That's hard to do and deserving of praise. The fact that we have a writeup organized like this is awesome.
-------
This is sort of the expert level stuff that I thought HackerNews would most enjoy.
> The bug was silently fixed in the main branch on 2025-11-27 (commit 000d5b52c19ff3858a6f0cbb405d47713c4267a4) as a side effect of a broader function refactoring. The fix has not been backported to stable/14 or releng/14.4. FreeBSD 14.4-RELEASE remains vulnerable.
> FreeBSD 15.0 still carries the sizeof(*groups) typo and is therefore vulnerable, but the surrounding code differs enough from 14.4 that the chain primitives developed here do not lift the overflow into a working LPE on that branch. On 15.0 the bug remains a kernel panic triggered by any unprivileged user.
At this point I will not purchase additional TruNAS equipment as I feel I was "rug pulled." I get that they are going after more of the Docker container/app market, but I just want a solid ZFS w/excellent networking NAS device. Linux is close to this ideal, but it isn't as "Set and Forget" as FreeBSD (IMO).