CVE-2026-7477

Summary

Use After Free vulnerability in Arm Ltd Bifrost GPU Kernel Driver, Arm Ltd Valhall GPU Kernel Driver, Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver allows a local non-privileged user process to perform valid GPU memory processing operations to access already freed memory.

This issue affects Bifrost GPU Kernel Driver: from r44p0 through r49p4, from r50p0 through r51p0, from r54p1 through r54p2; Valhall GPU Kernel Driver: from r44p0 through r49p5, from r50p0 through r54p3; Arm 5th Gen GPU Architecture Kernel Driver: from r44p0 through r49p5, from r50p0 through r54p3, r55p0.

Affected Software

VendorProductVersion RangeStatus
Arm LtdBifrost GPU Kernel Driverr44p0 <= r49p4affected
Arm LtdBifrost GPU Kernel Driverr50p0 <= r51p0affected
Arm LtdBifrost GPU Kernel Driverr54p1 <= r54p2affected
Arm LtdValhall GPU Kernel Driverr44p0 <= r49p5affected
Arm LtdValhall GPU Kernel Driverr50p0 <= r54p3affected
Arm LtdArm 5th Gen GPU Architecture Kernel Driverr44p0 <= r49p5affected
Arm LtdArm 5th Gen GPU Architecture Kernel Driverr50p0 <= r54p3affected
Arm LtdArm 5th Gen GPU Architecture Kernel Driverr55p0affected
Arm LtdArm 5th Gen GPU Architecture Kernel Driverr56p0unaffected

Weaknesses

  • CWE-416: CWE-416 Use After Free

References