CVE-2024-43867 drm/nouveau: prime: fix refcount underflow

What is CVE-2024-43867?

CVE-2024-43867 is a medium-severity vulnerability in Linux kernel, published on 20 Aug 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/nouveau: prime: fix refcount underflow

Calling nouveau_bo_ref() on a nouveau_bo without initializing it (and hence the backing ttm_bo) leads to a refcount underflow.

Instead of calling nouveau_bo_ref() in the unwind path of drm_gem_object_init(), clean things up manually.

(cherry picked from commit 1b93f3e89d03cfc576636e195466a0d728ad8de5)

Weakness: CWE-191

Which versions are affected by CVE-2024-43867?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2024-43867?

Apply the vendor's patch.

Is CVE-2024-43867 being exploited?

There is no known exploitation of CVE-2024-43867 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BELL-CVE-2024-43867, DEBIAN-CVE-2024-43867, GHSA-8h54-x6jj-v528, UBUNTU-CVE-2024-43867.