CVE-2025-71138 drm/msm/dpu: Add missing NULL pointer check for pingpong interface
A missing NULL pointer check in the Linux kernel's DPU driver can cause a system crash, requiring a kernel patch to prevent denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-71138?
CVE-2025-71138 is a medium-severity vulnerability in Linux kernel, published on 14 Jan 2026. 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/dpu: Add missing NULL pointer check for pingpong interface
It is checked almost always in dpu_encoder_phys_wb_setup_ctl(), but in a single place the check is missing. Also use convenient locals instead of phys_enc->* where available.
Patchwork: https://patchwork.freedesktop.org/patch/693860/
Weakness: CWE-476
Which versions are affected by CVE-2025-71138?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2025-71138?
Apply the vendor's patch.
Is CVE-2025-71138 being exploited?
There is no known exploitation of CVE-2025-71138 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-74616, BELL-CVE-2025-71138, DEBIAN-CVE-2025-71138, GHSA-2r49-c9gh-xp83, ROOT-OS-DEBIAN-12-CVE-2025-71138, ROOT-OS-DEBIAN-13-CVE-2025-71138 and 2 more.