2554937 – (CVE-2026-98649) CVE-2026-98649 kernel: KVM: s390: Fix race in _destroy_pages_crste()

Bug 2554937 (CVE-2026-98649) - CVE-2026-98649 kernel: KVM: s390: Fix race in _destroy_pages_crste()

Summary: CVE-2026-98649 kernel: KVM: s390: Fix race in _destroy_pages_crste()

Keywords:
Status:	NEW
Alias:	CVE-2026-98649
Product:	Security Response
Classification:	Other
Component:	vulnerability
Sub Component:
Version:	unspecified
Hardware:	All
OS:	Linux
Priority:	medium
Severity:	medium
Target Milestone:	---
Assignee:	Product Security DevOps Team
QA Contact:
Docs Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+	depends on / blocked

Reported:	2026-10-18 15:33 UTC by OSIDB Bzimport
Modified:	2026-10-21 20:07 UTC (History)
CC List:	17 users (show)
Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments	(Terms of Use)

Description OSIDB Bzimport 2026-10-18 15:33:53 UTC

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

KVM: s390: Fix race in _destroy_pages_crste()

Use READ_ONCE() in _destroy_pages_crste() to read the crste, avoid
dereferencing the pointer multiple times.

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