Bug 1929548 (CVE-2021-26934)

Summary:	CVE-2021-26934 xen: Linux: display frontend "be-alloc" mode is unsupported
Product:	[Other] Security Response	Reporter:	msiddiqu
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	jforbes, m.a.young, robinlee.sysu
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-02-17 07:02:23 UTC	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:	1929549
Bug Blocks:	1924847

Description msiddiqu 2021-02-17 06:17:20 UTC

The backend allocation mode of Linux'es drm_xen_front drivers was
not meant to be a supported configuration, but this wasn't stated
accordingly in its support status entry.

External References:

https://xenbits.xen.org/xsa/advisory-363.html

Comment 1 msiddiqu 2021-02-17 06:17:37 UTC

Created xen tracking bugs for this issue:

Affects: fedora-all [bug 1929549]

Comment 2 Product Security DevOps Team 2021-02-17 07:02:23 UTC

This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.