Riskcovery

CVE-2026-98466

KVM: arm64: Transfer the hyp stack pages out of the host stage-2

State
Published
Severity
8.2 High
Published
Oct 18, 2026
Updated
Oct 24, 2026
Reserved
Sep 25, 2026

Read the record on cve.org

Description

In the Linux kernel, the following vulnerability has been resolved:

KVM: arm64: Transfer the hyp stack pages out of the host stage-2

fix_host_ownership() walks only the linear-map alias of each memblock region, and the per-CPU hyp stack, mapped in the private VA range for its guard page, has none.

Walk each stack's VA range with the same walker.

Scores

CVSSScoreVectorSource
3.18.2 HighCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:HLinux

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 1a919b17ef012ca0572bae759c27e5ea02bfb47f to before e5dd2a91a7ae3a276e6d79806127e923936e241bAffected
  • 1a919b17ef012ca0572bae759c27e5ea02bfb47f to before 22df195bff84300a3f04813d6148765c77ac565aAffected
  • 1a919b17ef012ca0572bae759c27e5ea02bfb47f to before 3a8c562892b96f35bba1e00d5e455a15963bbb92Affected
LinuxLinux
  • 5.19Affected
  • before 5.19Not affected
  • 6.18.55 through 6.18.*Not affected
  • 7.2.9 through 7.2.*Not affected
  • 7.3 and laterNot affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.