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CVE-2026-41158— GPU DDK - Backed sparse PMRs are not handled by deferred free mechanism after shrink

Quick assessment

Affected
Imagination Technologies Graphics DDK
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Imagination Technologies Graphics DDK是Imagination Technologies的图形驱动程序开发套件。 Imagination Technologies Graphics DDK存在资源管理错误漏洞，该漏洞源于未采用延迟释放机制，物理内存分配和释放后，内核模块释放资源后GPU仍可读写这些资源，可能导致非特权用户通过GPU系统调用写入任意已释放的物理页面。

AI Predicted 7.8 Difficulty: Hard EPSS 0.16% · P5

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 6

VendorProduct Version RangeStatus
Imagination Technologies Graphics DDK 1.18 RTM unaffected
23.2 RTM unaffected
24.2 RTM unaffected
25.1 RTM≤ 25.3 RTM affected
26.1 RTM affected
26.2 RTM unaffected
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I. Basic Information for CVE-2026-41158

Vulnerability Information
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Vulnerability Title
GPU DDK - Backed sparse PMRs are not handled by deferred free mechanism after shrink
Source: CVE Program / CVE List V5
Vulnerability Description
Software installed and run as a non-privileged user may conduct GPU system calls to write to arbitrary freed physical pages. Physical memory allocated and freed, without the deferred free mechanism can lead to those resources being used for read/write by the GPU after the kernel module has freed the resource.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
释放后使用
Source: CVE Program / CVE List V5
Vulnerability Title
Imagination Technologies Graphics DDK 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Imagination Technologies Graphics DDK是Imagination Technologies的图形驱动程序开发套件。 Imagination Technologies Graphics DDK存在资源管理错误漏洞，该漏洞源于未采用延迟释放机制，物理内存分配和释放后，内核模块释放资源后GPU仍可读写这些资源，可能导致非特权用户通过GPU系统调用写入任意已释放的物理页面。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Imagination Technologies Graphics DDK 1.18 RTM -

II. Public POCs for CVE-2026-41158

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III. Intelligence Information for CVE-2026-41158

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News Coverage for CVE-2026-41158 (1)

Same Patch Batch · Imagination Technologies · 2026-06-12 · 4 CVEs total

CVE-2026-41155 GPU DDK - SharedSecMem mapped into all GPU virtual address spaces
CVE-2026-41157 GPU DDK - OOB Write in CalculateNPOTTwiddleSparsePageMap3D
CVE-2026-34195 GPU DDK - Kernel heap OOB write in PMRChangeSparseMemOSMem due to incorrect physical page

IV. Related Vulnerabilities

Same product: Graphics DDK
Same vendor: Imagination Technologies
Same weakness: CWE-416

V. Comments for CVE-2026-41158

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