x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache

Summary

CVECVE-2026-46174
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-28 10:16:33 UTC
Updated2026-05-30 11:17:24 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache Make sure resources are not improperly shared in the op cache and cause instruction corruption this way.

Risk And Classification

Primary CVSS: v3.1 8.8 HIGH from 416baaa9-dc9f-4396-8d5f-8c081fb06d67

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS: 0.000240000 probability, percentile 0.073930000 (date 2026-05-29)


VersionSourceTypeScoreSeverityVector
3.1416baaa9-dc9f-4396-8d5f-8c081fb06d67Secondary8.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
3.1CNADECLARED8.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 1e23b30a80b14e5764657401ee2cca030525ae8e git Not specified
CNA Linux Linux affected f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 f5bc3aef7df46eaaf423d7413ab8833f704ae576 git Not specified
CNA Linux Linux affected f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 251497955f2314cd39d43191e81c6151dead4c7b git Not specified
CNA Linux Linux affected f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 ff6fc65b3bf73acc5ee71919154d830ad5431362 git Not specified
CNA Linux Linux affected f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 9109489cc8c34e50d15575a3d1ff82af586bc1aa git Not specified
CNA Linux Linux affected f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 28f5ed477eef166d678d6966762cbc1de9b4f436 git Not specified
CNA Linux Linux affected f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 1cd85a19748b2407830376a5cbae5c0f126016e5 git Not specified
CNA Linux Linux affected f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 c21b90f77687075115d989e53a8ec5e2bb427ab1 git Not specified
CNA Linux Linux affected 5abd1583e06b3963e5c9d915760367de86808b78 git Not specified
CNA Linux Linux affected 4ba461d426490b6ed7e8298c4d3b7a13aa5d2686 git Not specified
CNA Linux Linux affected 5a63725cd18fcee2af6ec46ccb856b64ad3077b4 git Not specified
CNA Linux Linux affected 3.16.58 3.17 semver Not specified
CNA Linux Linux affected 4.4.144 4.5 semver Not specified
CNA Linux Linux affected 4.9.102 4.10 semver Not specified
CNA Linux Linux affected 4.14 Not specified
CNA Linux Linux unaffected 4.14 semver Not specified
CNA Linux Linux unaffected 5.10.256 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.207 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.173 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.139 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.88 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.30 6.18.* semver Not specified
CNA Linux Linux unaffected 7.0.7 7.0.* semver Not specified
CNA Linux Linux unaffected 7.1-rc4 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/28f5ed477eef166d678d6966762cbc1de9b4f436 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/1cd85a19748b2407830376a5cbae5c0f126016e5 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/ff6fc65b3bf73acc5ee71919154d830ad5431362 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/f5bc3aef7df46eaaf423d7413ab8833f704ae576 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/c21b90f77687075115d989e53a8ec5e2bb427ab1 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/1e23b30a80b14e5764657401ee2cca030525ae8e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/251497955f2314cd39d43191e81c6151dead4c7b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/9109489cc8c34e50d15575a3d1ff82af586bc1aa 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
© CVE.report 2026 |

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report