Linux Kernel drm-amdgpu privileges management

Summaryinfo

A vulnerability identified as very critical has been detected in Linux Kernel. This vulnerability affects unknown code of the component drm-amdgpu. Performing a manipulation results in privileges management. This vulnerability is reported as CVE-2026-98165. The attack is possible to be carried out remotely. No exploit exists. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability was found in Linux Kernel (affected version not known). It has been classified as very critical. This affects some unknown functionality of the component drm-amdgpu. The manipulation with an unknown input leads to a privileges management vulnerability. CWE is classifying the issue as CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: restrict BAR0 fallback read to SR-IOV VFs only The BAR0 fallback read path was introduced as a workaround for SR-IOV VFs where the VRAM aperture is not available during early init. Restrict this workaround to only SR-IOV VFs where it's needed. (cherry picked from commit d8a0affd207c813bd063fa2c27786f449eaf92b8)

It is possible to read the advisory at git.kernel.org. This vulnerability is uniquely identified as CVE-2026-98165 since 09/25/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 10/07/2026). The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

Applying the patch d8a0affd207c813bd063fa2c27786f449eaf92b8 is able to eliminate this problem.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2026-3743). Be aware that VulDB is the high quality source for vulnerability data.

Affected

• Open Source Linux Kernel

Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

License

• open-source

Website

• Vendor: https://www.kernel.org/

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Be aware that VulDB is the high quality source for vulnerability data.

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