CVE-2025-21941 drm/amd/display: Fix null check for pipe_ctx->plane_state in resource_build_scaling_params

What is CVE-2025-21941?

CVE-2025-21941 is a medium-severity vulnerability in Linux kernel, published on 1 Apr 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/amd/display: Fix null check for pipe_ctx->plane_state in resource_build_scaling_params

Null pointer dereference issue could occur when pipe_ctx->plane_state is null. The fix adds a check to ensure 'pipe_ctx->plane_state' is not null before accessing. This prevents a null pointer dereference.

Found by code review.

(cherry picked from commit 63e6a77ccf239337baa9b1e7787cde9fa0462092)

Weakness: CWE-476

Which versions are affected by CVE-2025-21941?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2025-21941?

Apply the vendor's patch.

Is CVE-2025-21941 being exploited?

There is no known exploitation of CVE-2025-21941 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 AZL-59763, AZL-59883, BELL-CVE-2025-21941, DEBIAN-CVE-2025-21941, GHSA-qf9h-wvgw-cqh6, ROOT-OS-UBUNTU-2404-CVE-2025-21941 and 1 more.