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CVE-2026-19199— GPU DDK - OOB write due to freelist size integer overflow in RGXCreateHWRTDataSet

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.

以非特权用户身份安装和运行的软件可能执行不当的系统调用以分配物理内存。在 KM 驱动程序进行分配大小的“页到字节”转换时，由于 32 位整数溢出，可能导致内核缓冲区分配过小。这攻击者可能将未分配或先前已分配的物理页面映射到由攻击者控制的 GPU MMU 上下文中，从而泄露敏感的内核数据。

AI Predicted 6.5 Difficulty: Moderate
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I. Basic Information for CVE-2026-19199

Vulnerability Information
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Vulnerability Title
GPU DDK - OOB write due to freelist size integer overflow in RGXCreateHWRTDataSet
Source: CVE Program / CVE List V5
Vulnerability Description
Software installed and run as a non-privileged user may conduct improper system calls to allocate physical memory. A 32-bit integer overflow in the KM driver during page-to-byte conversion of an allocation size can result in an undersized kernel buffer allocation. This may allow unallocated or previously allocated physical pages to be mapped into an attacker-controlled GPU MMU context, leading to disclosure of sensitive kernel data.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
整数溢出或超界折返
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Imagination Technologies Graphics DDK 1.18 RTM2 -

II. Public POCs for CVE-2026-19199

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III. Intelligence Information for CVE-2026-19199

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News Coverage for CVE-2026-19199 (1)

Same Patch Batch · Imagination Technologies · 2026-10-30 · 8 CVEs total

CVE-2026-65584 GPU DDK - Stack Buffer Overflow via undersized UFO address array in DumpStalledContextInfo
CVE-2026-15466 GPU DDK - Write UAF due to a race condition caused by insufficient locking in PVRSRVRGXClo
CVE-2026-65586 GPU DDK - Write UAF due to missing cleanup reference for abort command submitted via PVRSR
CVE-2026-65587 GPU DDK - OOB write in CalculateNPOTTwiddleSparsePageMap via TEXTURE_BASE_LEVEL change
CVE-2026-74912 GPU DDK - Fix for CVE-2026-49746 prevents the mapping of graphics buffers > 4GB
CVE-2026-74915 GPU DDK - OOB write in UntwiddlePOTSquare64bpp
CVE-2026-18629 GPU DDK - libusc.so NPD due to integer overflow at ConvertSwitchToArrayLookup during WebGP

IV. Related Vulnerabilities

Same product: Graphics DDK
Same vendor: Imagination Technologies
Same weakness: CWE-190