CyberRota Analysis
AI-GeneratedThe vulnerability affects the Linux kernel's IOMMU subsystem, specifically in the handling of atomic pool allocations via the dma_alloc_from_pool() function. An improper check for allocation failure could lead to the use of an invalid memory page, potentially resulting in system instability or data corruption. Organizations utilizing Linux systems, particularly those relying on IOMMU for device memory management, should prioritize addressing this issue to maintain system integrity.
Original NVD 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.