CVE-2025-21941: drm/amd/display: Fix null check for pipe_ctx->plane_state in resource_build_scaling_params
First published: Tue Apr 01 2025(Updated: )
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)
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | ||
| Linux Kernel | >=4.15<5.10.236 | |
| Linux Kernel | >=5.11<5.15.180 | |
| Linux Kernel | >=5.16<6.1.131 | |
| Linux Kernel | >=6.2<6.6.83 | |
| Linux Kernel | >=6.7<6.12.19 | |
| Linux Kernel | >=6.13<6.13.7 | |
| Linux Kernel | =6.14-rc1 | |
| Linux Kernel | =6.14-rc2 | |
| Linux Kernel | =6.14-rc3 | |
| Linux Kernel | =6.14-rc4 | |
| Linux Kernel | =6.14-rc5 |
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Reference Links
- https://git.kernel.org/stable/c/3748fad09d89e9a5290e1738fd6872a79f794743
- https://git.kernel.org/stable/c/374c9faac5a763a05bc3f68ad9f73dab3c6aec90
- https://git.kernel.org/stable/c/3b3c2be58d5275aa59d8b4810a59f173f2f5bac1
- https://git.kernel.org/stable/c/c1e54752dc12e90305eb0475ca908f42f5b369ca
- https://git.kernel.org/stable/c/e0345c3478f185ca840daac7f08a1fcd4ebec3e9
- https://git.kernel.org/stable/c/265422915416468ba91bffa56addbff45e18342a
- https://git.kernel.org/stable/c/f435192e00bc4d5d4134356b93212670ec47fa8d
Frequently Asked Questions
What is the severity of CVE-2025-21941?
CVE-2025-21941 has been classified as a moderate severity vulnerability.
How can I fix CVE-2025-21941?
To fix CVE-2025-21941, ensure you update your Linux kernel to the latest patched version.
What types of systems are affected by CVE-2025-21941?
CVE-2025-21941 affects systems running the Linux Kernel, particularly those using AMD display drivers.
What is the potential impact of CVE-2025-21941?
The potential impact of CVE-2025-21941 includes denial of service due to null pointer dereference.
Has CVE-2025-21941 been resolved in the Linux kernel?
Yes, CVE-2025-21941 has been resolved with a fix that adds a null check for pipe_ctx->plane_state.
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