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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.

PUBLISHED Reserved 2025-04-16 | Published 2025-09-05 | Updated 2026-05-11 | Assigner Linux

Product status

Default status
unaffected

488ffbf181718b9ad8c1838cb249d60973e78eda (git) before 220c491490255b656672bb572b18460cd9155926
affected

488ffbf181718b9ad8c1838cb249d60973e78eda (git) before 99d4d1a070870aa08163af8ce0522992b7f35d8c
affected

Default status
affected

6.13
affected

Any version before 6.13
unaffected

6.16.4 (semver)
unaffected

6.17 (original_commit_for_fix)
unaffected

References

git.kernel.org/...c/220c491490255b656672bb572b18460cd9155926

git.kernel.org/...c/99d4d1a070870aa08163af8ce0522992b7f35d8c

cve.org (CVE-2025-39699)

nvd.nist.gov (CVE-2025-39699)

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