CVE-2026-22167— GPU DDK - Cache resident PM buffers writable by other GPU requestors, leading to arbitrary write to physical memory

GPU DDK - Cache resident PM buffers writable by other GPU requestors, leading to arbitrary write to physical memory

Software installed and run as a non-privileged user may conduct improper GPU system calls to force GPU to write to arbitrary physical memory pages. Under certain circumstances this exploit could be used to corrupt data pages not allocated by the GPU driver but memory pages in use by the kernel and drivers running on the platform altering their behaviour. This attack can lead the GPU to perform write operations on restricted internal GPU buffers that can lead to a second order affect of corrupted arbitrary physical memory.

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内存缓冲区边界内操作的限制不恰当

Imagination Graphics DDK 缓冲区错误漏洞

Imagination Graphics DDK是英国Imagination公司的一款GPU驱动工具套件。 Imagination Graphics DDK存在缓冲区错误漏洞，该漏洞源于非特权用户运行的软件可能执行不当的GPU系统调用，强制GPU写入任意物理内存页，导致内核和驱动程序使用的内存页数据被破坏，从而改变其行为，并可能对受限的内部GPU缓冲区执行写操作，最终导致任意物理内存损坏。

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