CVE-2024-38390 drm/msm/a6xx: Avoid a nullptr dereference when speedbin setting fails

What is CVE-2024-38390?

CVE-2024-38390 is a medium-severity vulnerability in Linux kernel, published on 21 Jun 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/msm/a6xx: Avoid a nullptr dereference when speedbin setting fails

Calling a6xx_destroy() before adreno_gpu_init() leads to a null pointer dereference on:

msm_gpu_cleanup() : platform_set_drvdata(gpu->pdev, NULL);

as gpu->pdev is only assigned in:

a6xx_gpu_init() |_ adreno_gpu_init |_ msm_gpu_init()

Instead of relying on handwavy null checks down the cleanup chain, explicitly de-allocate the LLC data and free a6xx_gpu instead.

Patchwork: https://patchwork.freedesktop.org/patch/588919/

Weakness: CWE-476

Which versions are affected by CVE-2024-38390?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2024-38390?

Apply the vendor's patch.

Is CVE-2024-38390 being exploited?

There is no known exploitation of CVE-2024-38390 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-2024-38390, DEBIAN-CVE-2024-38390, GHSA-mpxh-cqc3-vxpw, UBUNTU-CVE-2024-38390.