CVE-2026-49743: CWE-416: Use After Free (4.20) in Imagination Technologies Graphics DDK
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.
AI Analysis
Technical Summary
This vulnerability involves improper handling of synchronization object lifetimes in the Imagination Technologies Graphics DDK. When a fence exported by the GPU driver is used during workload submission, the reference count for the underlying synchronization primitive is not incremented properly. An attacker can exploit this by destroying the exported fence prematurely, causing the underlying synchronization primitive to be released too early. This results in a use-after-free condition that could lead to read or write memory corruption.
Potential Impact
The vulnerability allows a non-privileged user to trigger use-after-free conditions in kernel synchronization objects related to GPU operations. This could potentially lead to memory corruption, which might be leveraged for privilege escalation or denial of service. However, no known exploits are reported in the wild, and the exact impact depends on exploitation success.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or workaround information is currently available.
CVE-2026-49743: CWE-416: Use After Free (4.20) in Imagination Technologies Graphics DDK
Description
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.
CVSS v3.1
Score 7.8high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves improper handling of synchronization object lifetimes in the Imagination Technologies Graphics DDK. When a fence exported by the GPU driver is used during workload submission, the reference count for the underlying synchronization primitive is not incremented properly. An attacker can exploit this by destroying the exported fence prematurely, causing the underlying synchronization primitive to be released too early. This results in a use-after-free condition that could lead to read or write memory corruption.
Potential Impact
The vulnerability allows a non-privileged user to trigger use-after-free conditions in kernel synchronization objects related to GPU operations. This could potentially lead to memory corruption, which might be leveraged for privilege escalation or denial of service. However, no known exploits are reported in the wild, and the exact impact depends on exploitation success.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or workaround information is currently available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- imaginationtech
- Date Reserved
- 2026-06-01T11:03:13.031Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a632edf9c2644c7f8ac5a3a
Added to database: 07/24/2026, 09:22:39 UTC
Last enriched: 07/24/2026, 09:37:23 UTC
Last updated: 07/25/2026, 01:49:39 UTC
Views: 24
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