Bug 2482549 (CVE-2026-46174) - CVE-2026-46174 kernel: x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache
Summary: CVE-2026-46174 kernel: x86/CPU/AMD: Prevent improper isolation of shared reso...
Keywords:
Status: NEW
Alias: CVE-2026-46174
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-05-28 11:02 UTC by OSIDB Bzimport
Modified: 2026-11-01 21:52 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

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System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2026:93413 0 None None None 2026-11-01 21:52:45 UTC

Description OSIDB Bzimport 2026-05-28 11:02:48 UTC 
In 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.
Comment 1 Keith Grant 2026-05-28 14:54:57 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026052828-CVE-2026-46174-e399@gregkh/T
Comment 4 Jon Orris 2026-11-01 21:52:45 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:93413 https://access.redhat.com/errata/RHSA-2026:93413
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