CVE-2026-9034

Summary

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 Software

VendorProductVersion RangeStatus
Arm LtdBifrost GPU Userspace Driverr42p0 <= r49p5affected
Arm LtdBifrost GPU Userspace Driverr50p0 <= r51p0affected
Arm LtdBifrost GPU Userspace Driverr54p1 <= r54p3affected
Arm LtdValhall GPU Userspace Driverr42p0 <= r49p5affected
Arm LtdValhall GPU Userspace Driverr50p0 <= r54p3affected
Arm LtdValhall GPU Userspace Driverr55p0affected
Arm LtdValhall GPU Userspace Driverr56p0unaffected
Arm LtdArm 5th Gen GPU Architecture Userspace Driverr42p0 <= r49p5affected
Arm LtdArm 5th Gen GPU Architecture Userspace Driverr50p0 <= r54p3affected
Arm LtdArm 5th Gen GPU Architecture Userspace Driverr55p0affected
Arm LtdArm 5th Gen GPU Architecture Userspace Driverr56p0unaffected

Weaknesses

  • CWE-416: CWE-416 Use After Free

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: total

References