CVE-2026-21734 GPU DDK - libusc OOB write at TreeRemove during WebGPU shader compilation

A web page that contains unusual GPU shader code is loaded into the GPU compiler process and can trigger a write out-of-bounds write crash in the GPU shader compiler library. On certain platforms, when the compiler process has system privileges this could enable further exploits on the device. An...

CVE-2026-21734

The GPU DDK is vulnerable to an out-of-bounds write within the libusc library during WebGPU shader compilation at the TreeRemove stage. This vulnerability is triggered when a web page loads unusual GPU shader code, specifically an edge case involving a very small value, which causes a segmentatio...

kernel: sch_hfsc: make hfsc_qlen_notify() idempotent

In the Linux kernel, the following vulnerability has been resolved: schhfsc: make hfscqlennotify idempotent hfscqlennotify is not idempotent either and not friendly to its callers, like fqcodeldequeue. Let's make it idempotent to ease qdisctreereducebacklog callers' life: 1. updatevf decreases...