https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Sun, 04 Oct 2026 10:31:46 +0000 https://vulnerability.circl.lu/vuln/cve-2026-43220 <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>iommu/amd: serialize sequence allocation under concurrent TLB invalidations</p> <p>With concurrent TLB invalidations, completion wait randomly gets timed out because cmd_sem_val was incremented outside the IOMMU spinlock, allowing CMD_COMPL_WAIT commands to be queued out of sequence and breaking the ordering assumption in wait_on_sem(). Move the cmd_sem_val increment under iommu-&gt;lock so completion sequence allocation is serialized with command queuing. And remove the unnecessary return.</p> <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>iommu/amd: serialize sequence allocation under concurrent TLB invalidations</p> <p>With concurrent TLB invalidations, completion wait randomly gets timed out because cmd_sem_val was incremented outside the IOMMU spinlock, allowing CMD_COMPL_WAIT commands to be queued out of sequence and breaking the ordering assumption in wait_on_sem(). Move the cmd_sem_val increment under iommu-&gt;lock so completion sequence allocation is serialized with command queuing. And remove the unnecessary return.</p> https://vulnerability.circl.lu/vuln/cve-2026-43220