Protection Mechanism Failure Affecting torvalds/linux package, versions [5.16,6.1.191)[6.2,6.6.160)[6.7,6.12.114)[6.13,6.17.3)


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.24% (15th percentile)

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  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-20700551
  • published10 Oct 2026
  • disclosed28 Oct 2025
  • creditUnknown

Introduced: 28 Oct 2025

CVE-2025-40065  (opens in a new tab)
CWE-693  (opens in a new tab)

How to fix?

Upgrade torvalds/linux to version 6.1.191, 6.6.160, 6.12.114, 6.17.3 or higher.

Overview

Affected versions of this package are vulnerable to Protection Mechanism Failure in the handling of the hgatp register in RISC-V KVM when writing with valid mode bits. An attacker can cause incorrect configuration of the hypervisor address translation and protection by manipulating the hgatp register values.

Note: The Linux kernel project assigns a CVE to every bug fix it ships, whether or not the bug has been shown to be exploitable. This advisory was generated from that process and has not been individually assessed for exploitability. See the kernel's CVE process documentation: https://github.com/torvalds/linux/blob/master/Documentation/process/cve.rst

CVSS Base Scores

version 4.0
version 3.1