CVE-2024-44979 drm/xe: Fix missing workqueue destroy in xe_gt_pagefault

Medium 5.5 Published Updated

A memory leak in the Linux kernel's Intel Xe driver can lead to resource exhaustion and denial of service during driver reloads.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2024-44979?

CVE-2024-44979 is a medium-severity denial of service vulnerability in Linux kernel, published on 4 Sep 2024. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In the Linux kernel, the following vulnerability has been resolved:

drm/xe: Fix missing workqueue destroy in xe_gt_pagefault

On driver reload we never free up the memory for the pagefault and access counter workqueues. Add those destroy calls here.

(cherry picked from commit 7586fc52b14e0b8edd0d1f8a434e0de2078b7b2b)

Weakness: CWE-401

Which versions are affected by CVE-2024-44979?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2024-44979?

Apply the vendor's patch.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2024-44979 being exploited?

There is no known exploitation of CVE-2024-44979 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as BELL-CVE-2024-44979, DEBIAN-CVE-2024-44979, GHSA-mhp8-p4cm-q5rh, UBUNTU-CVE-2024-44979.

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