https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Mon, 05 Oct 2026 15:21:24 +0000 https://vulnerability.circl.lu/vuln/cve-2022-49377 <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>blk-mq: don&#39;t touch -&gt;tagset in blk_mq_get_sq_hctx</p> <p>blk_mq_run_hw_queues() could be run when there isn&#39;t queued request and after queue is cleaned up, at that time tagset is freed, because tagset lifetime is covered by driver, and often freed after blk_cleanup_queue() returns.</p> <p>So don&#39;t touch -&gt;tagset for figuring out current default hctx by the mapping built in request queue, so use-after-free on tagset can be avoided. Meantime this way should be fast than retrieving mapping from tagset.</p> <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>blk-mq: don&#39;t touch -&gt;tagset in blk_mq_get_sq_hctx</p> <p>blk_mq_run_hw_queues() could be run when there isn&#39;t queued request and after queue is cleaned up, at that time tagset is freed, because tagset lifetime is covered by driver, and often freed after blk_cleanup_queue() returns.</p> <p>So don&#39;t touch -&gt;tagset for figuring out current default hctx by the mapping built in request queue, so use-after-free on tagset can be avoided. Meantime this way should be fast than retrieving mapping from tagset.</p> https://vulnerability.circl.lu/vuln/cve-2022-49377