https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Mon, 05 Oct 2026 06:28:48 +0000 https://vulnerability.circl.lu/vuln/cve-2023-52895 <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>io_uring/poll: don&#39;t reissue in case of poll race on multishot request</p> <p>A previous commit fixed a poll race that can occur, but it&#39;s only applicable for multishot requests. For a multishot request, we can safely ignore a spurious wakeup, as we never leave the waitqueue to begin with.</p> <p>A blunt reissue of a multishot armed request can cause us to leak a buffer, if they are ring provided. While this seems like a bug in itself, it&#39;s not really defined behavior to reissue a multishot request directly. It&#39;s less efficient to do so as well, and not required to rearm anything like it is for singleshot poll requests.</p> <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>io_uring/poll: don&#39;t reissue in case of poll race on multishot request</p> <p>A previous commit fixed a poll race that can occur, but it&#39;s only applicable for multishot requests. For a multishot request, we can safely ignore a spurious wakeup, as we never leave the waitqueue to begin with.</p> <p>A blunt reissue of a multishot armed request can cause us to leak a buffer, if they are ring provided. While this seems like a bug in itself, it&#39;s not really defined behavior to reissue a multishot request directly. It&#39;s less efficient to do so as well, and not required to rearm anything like it is for singleshot poll requests.</p> https://vulnerability.circl.lu/vuln/cve-2023-52895