CVE-2026-53996

The CVE-2026-53996 entry affects NetBSD's hdaudio(4) driver (sys/dev/hdaudio/hdaudio.c), where a missing access check on /dev/hdaudioN device nodes allows unprivileged local attackers to invoke HDAUDIO_FGRP_SETCONFIG via an IOCTL. A race between thread_stop and thread_disestablish in hdafg_detach...