CVE-2026-34196 — GPU DDK - UAF read and/or write of arbitrary physical memory due to integer truncation in PMRDevPhysAddrOSMem

Description (CNA)

Software installed and run as a non-privileged user may conduct improper GPU system calls to cause an integer overflow and map two GPU virtual addresses to the same physical address. One of these virutal mappings can be freed along with the physical page, allowing for a read/write UAF via the second mapping The second virtual mapping references a physical address that has been freed after the first virtual mapping has been freed. This allows the physical memory to be allocated (for example) by another process and read/written to.

Affected (CNA)

Vendor / product	Versions
Imagination Technologies / Graphics DDK	affected 1.18 RTM2; affected 23.2 RTM2; affected 24.2 RTM2; affected 25.1 RTM2 through 25.3 RTM; affected 26.1 RTM1; unaffected 26.1 RTM2

CWE

CWE-416

References

https://www.imaginationtech.com/gpu-driver-vulnerabilities/

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.