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Description

In the Linux kernel, the following vulnerability has been resolved: RISC-V: KVM: Write hgatp register with valid mode bits According to the RISC-V Privileged Architecture Spec, when MODE=Bare is selected,software must write zero to the remaining fields of hgatp. We have detected the valid mode supported by the HW before, So using a valid mode to detect how many vmid bits are supported.

PUBLISHED Reserved 2025-04-16 | Published 2025-10-28 | Updated 2025-10-28 | Assigner Linux

Product status

Default status
unaffected

fd7bb4a251dfc1da3496bf59a4793937c13e8c1f (git) before d00b61cd37f4c183ce0edbc9f8ccf6d5430ea357
affected

fd7bb4a251dfc1da3496bf59a4793937c13e8c1f (git) before 2b351e3d04be9e1533f26c3464f1e44a5beace30
affected

Default status
affected

5.16
affected

Any version before 5.16
unaffected

6.17.3 (semver)
unaffected

6.18-rc1 (original_commit_for_fix)
unaffected

References

git.kernel.org/...c/d00b61cd37f4c183ce0edbc9f8ccf6d5430ea357

git.kernel.org/...c/2b351e3d04be9e1533f26c3464f1e44a5beace30

cve.org (CVE-2025-40065)

nvd.nist.gov (CVE-2025-40065)

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