CVE-2026-9034: CWE-416 Use After Free in Arm Ltd Bifrost GPU Userspace Driver
Description
Use After Free vulnerability in Arm Ltd Bifrost GPU Userspace Driver, Arm Ltd Valhall GPU Userspace Driver, Arm Ltd Arm 5th Gen GPU Architecture Userspace Driver allows a non-privileged user process to perform valid GPU processing operations, including via WebGL or WebGPU, to access already freed memory. This issue affects Bifrost GPU Userspace Driver: from r42p0 through r49p5, from r50p0 through r51p0, from r54p1 through r54p3; Valhall GPU Userspace Driver: from r42p0 through r49p5, from r50p0 through r54p3, r55p0; Arm 5th Gen GPU Architecture Userspace Driver: from r42p0 through r49p5, from r50p0 through r54p3, r55p0.
CVSS v3.1
Score 7.8high
Affected software
Arm Ltd
Bifrost GPU Userspace Driver
Arm Ltd
Valhall GPU Userspace Driver
Arm Ltd
Arm 5th Gen GPU Architecture Userspace Driver
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a Use After Free condition in Arm Ltd's Bifrost GPU Userspace Driver (versions r42p0 through r49p5, r50p0 through r51p0, r54p1 through r54p3), Valhall GPU Userspace Driver (r42p0 through r49p5, r50p0 through r54p3, r55p0), and Arm 5th Gen GPU Architecture Userspace Driver (r42p0 through r49p5, r50p0 through r54p3, r55p0). A non-privileged user process that performs valid GPU processing operations, including through WebGL or WebGPU interfaces, can access memory that has already been freed, potentially leading to confidentiality, integrity, and availability impacts.
Potential Impact
The vulnerability allows a non-privileged user process to access freed memory, which can lead to high impact on confidentiality, integrity, and availability of the affected system. This could enable unauthorized information disclosure, data corruption, or denial of service.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch information is provided in the available data. Until a patch is available, users should monitor vendor communications for updates.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Arm
- Date Reserved
- 2026-05-19T16:30:46.525Z
- State
- PUBLISHED
Threat ID: 6aa01dbcacd9273b49c83734
Added to database: 09/08/2026, 14:37:48 UTC
Last enriched: 09/16/2026, 01:37:38 UTC
Last updated: 10/23/2026, 15:10:16 UTC
Views: 58
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