RISC-V: KVM: Write hgatp register with valid mode bits
CVE-2025-40065 is fixed in linux on 1 platform, first by DEBIAN-CVE-2025-40065, released October 28, 2025. It is not reported as exploited. Patch Radar priority: High.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| linux · Debian 13.5 (trixie) | 6.12.115-2 | DEBIAN-CVE-2025-40065 | Oct 28, 2025 |
| linux · Debian 14 | 6.17.6-1 | DEBIAN-CVE-2025-40065 | Oct 28, 2025 |
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