CVE-2026-9040 PUBLISHED

Mali GPU Kernel Driver allows denial of service or disclosure of sensitive information

Assigner: Arm
Reserved: 19.05.2026 Published: 08.09.2026 Updated: 08.09.2026

A race condition 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 improper GPU memory processing operations to cause a denial of service or disclose sensitive information.

This issue affects Bifrost GPU Kernel Driver: from r12p0 through r49p5, from r50p0 through r51p0, from r54p1 through r54p2; Valhall GPU Kernel Driver: from r19p0 through r49p5, from r50p0 through r54p3, r55p0; Arm 5th Gen GPU Architecture Kernel Driver: from r41p0 through r49p5, from r50p0 through r54p3, r55p0.

Product Status

Vendor Arm Ltd
Product Bifrost GPU Kernel Driver
Versions Default: unaffected
  • affected from r12p0 to r49p5 (incl.)
  • affected from r50p0 to r51p0 (incl.)
  • affected from r54p1 to r54p2 (incl.)
Vendor Arm Ltd
Product Valhall GPU Kernel Driver
Versions Default: unaffected
  • affected from r19p0 to r49p5 (incl.)
  • affected from r50p0 to r54p3 (incl.)
  • Version r55p0 is affected
  • Version r56p0 is unaffected
Vendor Arm Ltd
Product Arm 5th Gen GPU Architecture Kernel Driver
Versions Default: unaffected
  • affected from r41p0 to r49p5 (incl.)
  • affected from r50p0 to r54p3 (incl.)
  • Version r55p0 is affected
  • Version r56p0 is unaffected

Solutions

This issue has been fixed in the following versions: Valhall GPU Kernel Driver: r56p0; Arm 5th Gen GPU Architecture Kernel Driver: r56p0. Arm partners are recommended to upgrade to the latest applicable version as soon as possible.

Credits

  • Pumpkin from DEVCORE Research Team finder

References

Problem Types

  • CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') CWE