CVE-2026-41156 GPU DDK - kernel<->fw CCB contains SYNC_PRIMITIVE_BLOCK firmware address without holding reference

Software installed and run as a non-privileged user may conduct improper GPU system calls to cause mismanagement of resources creating a write use after free scenario. A shared resource memory page managed by a CPU thread of control driver and accessed by a GPU thread of control Firmware can caus...

CVE-2026-41156

CVE-2026-41156 concerns GPU DDK where a CPU-thread driver frees a memory page used by a GPU firmware thread, causing a write-after-free (UAF) due to the GPU still accessing the resource. The issue references a SYNC_PRIMITIVE_BLOCK firmware address without holding a reference in the kernelfirmware...