Bug 2400628 (CVE-2025-39918)

Summary:	CVE-2025-39918 kernel: wifi: mt76: fix linked list corruption
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	Keywords:	Security
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
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Doc Text:	A flaw was found in the linux kernal wifi subsystem mt76_txq_schedule_pending_wcid() and mt76_txq_schedule_pending() functions of the mt76 driver. Under certain conditions, scheduled wcid entries are left on a temporary on‑stack list, which may lead to linked‑list corruption and memory corruption, allowing a local attacker to cause a denial of service.	Story Points:	---
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2025-10-01 09:01:46 UTC

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

wifi: mt76: fix linked list corruption

Never leave scheduled wcid entries on the temporary on-stack list

Comment 1 Alexander B 2025-10-02 11:37:18 UTC

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025100119-CVE-2025-39918-7902@gregkh/T

Comment 4 errata-xmlrpc 2025-12-01 09:21:23 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2025:22395 https://access.redhat.com/errata/RHSA-2025:22395

Comment 5 errata-xmlrpc 2025-12-01 09:49:42 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.6 Extended Update Support

Via RHSA-2025:22392 https://access.redhat.com/errata/RHSA-2025:22392

Comment 6 errata-xmlrpc 2025-12-01 10:39:09 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2025:22405 https://access.redhat.com/errata/RHSA-2025:22405

Comment 7 errata-xmlrpc 2025-12-02 10:57:15 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support

Via RHSA-2025:22571 https://access.redhat.com/errata/RHSA-2025:22571