CVE-2026-49743

Summary

Software installed and run as a non-privileged user may conduct improper GPU system calls to manipulate the lifetimes of synchronisation objects in the kernel, leading to read/write UAFs.

During workload submission involving a fence exported by the GPU driver, the reference count of the underlying synchronisation primitive is not properly incremented. This can be exploited, by destroying the exported fence and prematurely release the underlying primitive, resulting in a potential use-after-free condition.

Affected Software

VendorProductVersion RangeStatus
Imagination TechnologiesGraphics DDK1.18 RTM2unaffected
Imagination TechnologiesGraphics DDK23.2 RTM2unaffected
Imagination TechnologiesGraphics DDK24.2 RTM2affected
Imagination TechnologiesGraphics DDK25.1 RTM2 <= 25.3 RTMaffected
Imagination TechnologiesGraphics DDK26.1 RTM1affected
Imagination TechnologiesGraphics DDK26.1 RTM2unaffected

Weaknesses

  • CWE-416: CWE-416: Use After Free (4.20)

ADP Enrichment

CISA ADP Vulnrichment

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

References