Bug 2348256 (CVE-2022-49646)

Summary:	CVE-2022-49646 kernel: wifi: mac80211: fix queue selection for mesh/OCB interfaces
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	dfreiber, drow, jburrell, vkumar
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
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Description OSIDB Bzimport 2025-02-26 03:23:07 UTC

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

wifi: mac80211: fix queue selection for mesh/OCB interfaces

When using iTXQ, the code assumes that there is only one vif queue for
broadcast packets, using the BE queue. Allowing non-BE queue marking
violates that assumption and txq->ac == skb_queue_mapping is no longer
guaranteed. This can cause issues with queue handling in the driver and
also causes issues with the recent ATF change, resulting in an AQL
underflow warning.

Comment 1 Avinash Hanwate 2025-02-26 13:47:20 UTC

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025022619-CVE-2022-49646-248b@gregkh/T

Comment 4 Avinash Hanwate 2025-02-26 17:59:27 UTC

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025022619-CVE-2022-49646-248b@gregkh/T