CVE-2026-49743 (GCVE-0-2026-49743)

Vulnerability from cvelistv5 – Published: 2026-07-24 08:42 – Updated: 2026-07-24 17:27
VLAI
Title
GPU DDK - Write UAF of sync checkpoint in GPU kick function after export fence file descriptor is prematurely closed
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.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-24 17:27 UTC
CWE
Assigner
imaginationtech CNA under the mitre root
CNA scorecard D 55/100 over 28 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Imagination Technologies Graphics DDK Unaffected: 1.18 RTM2 (custom)
Unaffected: 23.2 RTM2 (custom)
Affected: 24.2 RTM2 (custom)
Affected: 25.1 RTM2 , ≤ 25.3 RTM (custom)
Affected: 26.1 RTM1 (custom)
Unaffected: 26.1 RTM2 (custom)
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