Hacker News<p>OSS-SEC: Three bypasses of Ubuntu's unprivileged user namespace restrictions</p><p><a href="https://seclists.org/oss-sec/2025/q1/253" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">seclists.org/oss-sec/2025/q1/2</span><span class="invisible">53</span></a></p><p><a href="https://mastodon.social/tags/HackerNews" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>HackerNews</span></a> <a href="https://mastodon.social/tags/OSSSEC" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>OSSSEC</span></a> <a href="https://mastodon.social/tags/Ubuntu" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Ubuntu</span></a> <a href="https://mastodon.social/tags/Security" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Security</span></a> <a href="https://mastodon.social/tags/Vulnerabilities" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Vulnerabilities</span></a> <a href="https://mastodon.social/tags/UserNamespace" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>UserNamespace</span></a> <a href="https://mastodon.social/tags/Bypasses" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Bypasses</span></a> <a href="https://mastodon.social/tags/OpenSource" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>OpenSource</span></a></p>