CVE-2025-39699
published 2025-09-05CVE-2025-39699: 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…
PriorityP418medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.14%
3.5th percentile
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.
Affected
7 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.16.5-1 (forky) | linux 6.16.5-1 (forky) |
| linux | linux | — | — |
| linux | linux | >= 488ffbf181718b9ad8c1838cb249d60973e78eda < 220c491490255b656672bb572b18460cd9155926 | 220c491490255b656672bb572b18460cd9155926 |
| linux | linux | >= 488ffbf181718b9ad8c1838cb249d60973e78eda < 99d4d1a070870aa08163af8ce0522992b7f35d8c | 99d4d1a070870aa08163af8ce0522992b7f35d8c |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 6.16.5-1 | 6.16.5-1 |
| linux | linux_kernel | >= 6.13 < 6.16.4 | 6.16.4 |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5LOW
vendor_redhat5.5MEDIUM
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GHSA
GHSA-mr69-6c22-jgq8: In the Linux kernel, the following vulnerability has been resolved:
iommu/riscv: prevent NULL deref in iova_to_phys
The riscv_iommu_pte_fetch() func
ghsa_unreviewed·2025-09-05
CVE-2025-39699 [MEDIUM] CWE-476 GHSA-mr69-6c22-jgq8: In the Linux kernel, the following vulnerability has been resolved:
iommu/riscv: prevent NULL deref in iova_to_phys
The riscv_iommu_pte_fetch() func
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.
OSV
CVE-2025-39699: In the Linux kernel, the following vulnerability has been resolved: iommu/riscv: prevent NULL deref in iova_to_phys The riscv_iommu_pte_fetch() functi
osv·2025-09-05·CVSS 5.5
CVE-2025-39699 [MEDIUM] CVE-2025-39699: In the Linux kernel, the following vulnerability has been resolved: iommu/riscv: prevent NULL deref in iova_to_phys The riscv_iommu_pte_fetch() functi
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.
Red Hat
kernel: iommu/riscv: prevent NULL deref in iova_to_phys
vendor_redhat·2025-09-05·CVSS 5.5
CVE-2025-39699 [MEDIUM] kernel: iommu/riscv: prevent NULL deref in iova_to_phys
kernel: iommu/riscv: prevent NULL deref in iova_to_phys
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.
Package: kernel (Red Hat Enterprise Linux 10) - Not affected
Package: kernel (Red Hat Enterprise Linux 6) - Not affected
Package: kernel (Red Hat Enterprise Linux 7) - Not affected
Package: kernel-rt (Red Hat Enterprise Linux 7) - Not affected
Package: kernel (Red Hat Enterprise Linux 8) - Not affected
Package: k
Debian
CVE-2025-39699: linux - In the Linux kernel, the following vulnerability has been resolved: iommu/riscv...
vendor_debian·2025·CVSS 5.5
CVE-2025-39699 [MEDIUM] CVE-2025-39699: linux - In the Linux kernel, the following vulnerability has been resolved: iommu/riscv...
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.
Scope: local
bookworm: resolved
bullseye: resolved
forky: resolved (fixed in 6.16.5-1)
sid: resolved (fixed in 6.16.5-1)
trixie: resolved
No detection rules found.
No public exploits indexed.
2025-09-05
Published