Bug 2507093 (CVE-2026-64526)

Summary: CVE-2026-64526 kernel: ethtool: tsconfig: fix missing ethnl_ops_complete()
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: 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 ethtool tsconfig component. A missing cleanup function call after an operation could lead to resource exhaustion. This vulnerability may allow a local attacker to cause a Denial of Service (DoS) by depleting system resources.
 Story Points: ---
Clone Of: Environment:
Last Closed: Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2026-07-25 10:04:38 UTC 
In the Linux kernel, the following vulnerability has been resolved:

ethtool: tsconfig: fix missing ethnl_ops_complete()

tsconfig_prepare_data() calls ethnl_ops_begin(), we need to call
ethnl_ops_complete() before returning the error.
Comment 1 TEJ RATHI 2026-07-30 03:03:04 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026072534-CVE-2026-64526-5201@gregkh/T