CVE-2025-39699

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> iommu/riscv: prevent NULL deref in iova_to_phys<br /> <br /> The riscv_iommu_pte_fetch() function returns either NULL for<br /> unmapped/never-mapped iova, or a valid leaf pte pointer that<br /> requires no further validation.<br /> <br /> riscv_iommu_iova_to_phys() failed to handle NULL returns.<br /> Prevent null pointer dereference in<br /> riscv_iommu_iova_to_phys(), and remove the pte validation.