https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Tue, 29 Sep 2026 01:27:42 +0000 https://vulnerability.circl.lu/vuln/cve-2026-43253 <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>iommu/amd: move wait_on_sem() out of spinlock</p> <p>With iommu.strict=1, the existing completion wait path can cause soft lockups under stressed environment, as wait_on_sem() busy-waits under the spinlock with interrupts disabled.</p> <p>Move the completion wait in iommu_completion_wait() out of the spinlock. wait_on_sem() only polls the hardware-updated cmd_sem and does not require iommu-&gt;lock, so holding the lock during the busy wait unnecessarily increases contention and extends the time with interrupts disabled.</p> <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>iommu/amd: move wait_on_sem() out of spinlock</p> <p>With iommu.strict=1, the existing completion wait path can cause soft lockups under stressed environment, as wait_on_sem() busy-waits under the spinlock with interrupts disabled.</p> <p>Move the completion wait in iommu_completion_wait() out of the spinlock. wait_on_sem() only polls the hardware-updated cmd_sem and does not require iommu-&gt;lock, so holding the lock during the busy wait unnecessarily increases contention and extends the time with interrupts disabled.</p> https://vulnerability.circl.lu/vuln/cve-2026-43253