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CVE-2026-9034

Mali GPU Userspace Driver allows access to already freed memory

HIGH
7.8
CVSS Score
Published: September 8, 2026 at 02:20 PM UTC
Updated: September 10, 2026 at 07:28 PM UTC
3 products affected across 1 vendorValhall GPU Userspace DriverArm 5th Gen GPU Architecture Userspace DriverBifrost GPU Userspace Driver

Using Bifrost GPU Userspace Driver by Arm Ltd?

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Severity
HIGH7.8
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Arm 5th Gen GPU Architecture Userspace Driver· Arm
60%
r42p0 ≤ v ≤ r49p5r50p0 ≤ v ≤ r54p3r42p0r50p0r55p0
Vendor states this is fixed in r56p0 (unaffected)
Bifrost GPU Userspace Driver· Arm
60%
r42p0 ≤ v ≤ r49p5r50p0 ≤ v ≤ r51p0r54p1 ≤ v ≤ r54p3r42p0r50p0r54p1
Valhall GPU Userspace Driver· Arm
60%
r42p0 ≤ v ≤ r49p5r50p0 ≤ v ≤ r54p3r42p0r50p0r55p0
Vendor states this is fixed in r56p0 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Source: cverecord
https://support.arm.com/documentation/111552/1-0/?lang=en

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGHCISA-ADP
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-416

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