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high advisory

CVE-2026-57842: Kernel Use-After-Free in NetBSD COMPAT_NETBSD32 Layer

A use-after-free and double-free vulnerability in the NetBSD kernel's COMPAT_NETBSD32 layer allows local users to trigger memory corruption or kernel panics via crafted recvmsg system calls.

NetBSD kernel vulnerability privilege-escalation
1t 1c
high advisory

NetBSD Local Privilege Escalation via hdaudio Driver

An unprivileged local attacker can trigger a use-after-free condition in the NetBSD hdaudio(4) driver by exploiting a missing access check on /dev/hdaudioN nodes to invoke the HDAUDIO_FGRP_SETCONFIG ioctl.

NetBSD privilege-escalation kernel-vulnerability
1t 1c