VULNERABILITY INTELLIGENCE

CVE-2025-39699

CVSS score5.5 MEDIUM
EPSS probability0.14%
CISA KEVNot currently listed
Published2025-09-05
Last modified2026-10-19
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Description

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

Weakness classification

  • nvd@nist.gov: CWE-476

Primary references