Bug 2294289 (CVE-2021-4440)

Summary:	CVE-2021-4440 kernel: x86/xen: Drop USERGS_SYSRET64 paravirt call
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	dfreiber, drow, jburrell, kyoshida, rkeshri, vkumar
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	kernel 5.10.218	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2294290
Bug Blocks:	2294292

Description Pedro Sampaio 2024-06-25 20:07:12 UTC

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

x86/xen: Drop USERGS_SYSRET64 paravirt call

The Linux kernel CVE team has assigned CVE-2021-4440 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024062506-CVE-2021-4440-f8f1@gregkh/T

Comment 1 Pedro Sampaio 2024-06-25 20:07:30 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2294290]