CVE-2022-49488 drm/msm/mdp5: Return error code in mdp5_mixer_release when deadlock is detected

What is CVE-2022-49488?

CVE-2022-49488 is a medium-severity vulnerability in Linux kernel, published on 26 Feb 2025. 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/mdp5: Return error code in mdp5_mixer_release when deadlock is detected

There is a possibility for mdp5_get_global_state to return -EDEADLK when acquiring the modeset lock, but currently global_state in mdp5_mixer_release doesn't check for if an error is returned.

To avoid a NULL dereference error, let's have mdp5_mixer_release check if an error is returned and propagate that error.

Patchwork: https://patchwork.freedesktop.org/patch/485181/

Weakness: CWE-476

Which versions are affected by CVE-2022-49488?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2022-49488?

Apply the vendor's patch.

Is CVE-2022-49488 being exploited?

There is no known exploitation of CVE-2022-49488 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 DEBIAN-CVE-2022-49488, GHSA-q823-7v63-v327, UBUNTU-CVE-2022-49488.