GHSA-f6r8-238v-4fm2HighCVSS 7.8

In the Linux kernel, the following vulnerability has been resolved: iommu/dma: Check atomic pool...

Published
September 17, 2026
Last Modified
September 18, 2026

🔗 CVE IDs covered (1)

📋 Description

In the Linux kernel, the following vulnerability has been resolved:

iommu/dma: Check atomic pool allocation result directly

The non-blocking, non-coherent allocation path uses dma_alloc_from_pool(), which returns the allocated page and fills cpu_addr only on success.

Do not rely on cpu_addr to detect allocation failure in this path. Check the returned page directly before using it for the IOMMU mapping.

🔗 References (10)