Advisory Published
Updated

CVE-2025-21990: drm/amdgpu: NULL-check BO's backing store when determining GFX12 PTE flags

First published: Wed Apr 02 2025(Updated: )

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: NULL-check BO's backing store when determining GFX12 PTE flags PRT BOs may not have any backing store, so bo->tbo.resource will be NULL. Check for that before dereferencing. (cherry picked from commit 3e3fcd29b505cebed659311337ea03b7698767fc)

Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Affected SoftwareAffected VersionHow to fix
Linux Kernel

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Frequently Asked Questions

  • What is the severity of CVE-2025-21990?

    CVE-2025-21990 is classified as a high-severity vulnerability due to its potential impact on system stability and security.

  • How do I fix CVE-2025-21990?

    To fix CVE-2025-21990, update your Linux kernel to the latest version where the vulnerability is patched.

  • What systems are affected by CVE-2025-21990?

    CVE-2025-21990 affects specific versions of the Linux kernel that handle DRM and AMD GPU functionalities.

  • What are the potential impacts of CVE-2025-21990?

    Exploitation of CVE-2025-21990 can lead to system crashes or instability when handling graphics resources.

  • Who is responsible for addressing vulnerabilities like CVE-2025-21990?

    Maintainers of the Linux kernel and system administrators are responsible for addressing vulnerabilities like CVE-2025-21990 by applying updates.

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