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: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED UPSTREAM QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: jforbes, m.a.young, robinlee.sysu
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Clone Of: Environment:
Last Closed: 2021-02-17 07:02:23 UTC Type: ---
Regression: --- Mount Type: ---
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Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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.