Bug 2502602 (CVE-2026-64155)

Summary:	CVE-2026-64155 kernel: wifi: ath11k: fix error path leaks in some WMI WOW calls
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
Status:	NEW ---	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	rhel-process-autobot, watson-tool-maintainers
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	---
Doc Text:	A flaw was found in the Linux kernel's ath11k Wi-Fi driver. This vulnerability is caused by improper error handling in certain Wireless Management Interface (WMI) Wake-on-Wireless (WOW) calls. Specifically, the ath11k_wmi_cmd_send function did not properly free socket buffers (skb) in error paths, leading to a resource leak. This resource leak could potentially lead to system instability or a denial of service.	Story Points:	---
Clone Of:		Environment:
Last Closed:		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:
Embargoed:

Description OSIDB Bzimport 2026-07-19 17:08:23 UTC

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

wifi: ath11k: fix error path leaks in some WMI WOW calls

Fix two instances where we used to directly return the result of
ath11k_wmi_cmd_send(...). Because we did not check the return value, we
also did not free the skb in the error path.

Comment 1 TEJ RATHI 2026-07-20 08:57:11 UTC

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026071932-CVE-2026-64155-7dde@gregkh/T