CVE-2025-38543 drm/tegra: nvdec: Fix dma_alloc_coherent error check

Medium 5.5 Published Updated

A missing NULL check in the Tegra NVDEC driver can cause a kernel crash, leading to 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-2025-38543?

CVE-2025-38543 is a medium-severity vulnerability in Debian Debian Linux, published on 16 Aug 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/tegra: nvdec: Fix dma_alloc_coherent error check

Check for NULL return value with dma_alloc_coherent, in line with Robin's fix for vic.c in 'drm/tegra: vic: Fix DMA API misuse'.

Weakness: CWE-476

Which versions are affected by CVE-2025-38543?

It affects 2 products.

Products include Debian Debian Linux, Linux kernel.

How do I fix CVE-2025-38543?

Apply the vendor's patch.

Is CVE-2025-38543 being exploited?

There is no known exploitation of CVE-2025-38543 in the wild and no public exploit code.

All Debian Debian Linux vulnerabilities

Sources

Also known as BELL-CVE-2025-38543, DEBIAN-CVE-2025-38543, GHSA-9w4m-fr9r-hh23, ROOT-OS-DEBIAN-12-CVE-2025-38543, ROOT-OS-DEBIAN-13-CVE-2025-38543, ROOT-OS-UBUNTU-2404-CVE-2025-38543 and 1 more.

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