Bug 2426149 (CVE-2023-54294)

Summary: CVE-2023-54294 kernel: md/raid10: fix memleak of md thread
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedKeywords: Security
Target Milestone: ---   
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: ---
Doc Text:
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 2025-12-30 13:12:30 UTC 
In the Linux kernel, the following vulnerability has been resolved:

md/raid10: fix memleak of md thread

In raid10_run(), if setup_conf() succeed and raid10_run() failed before
setting 'mddev->thread', then in the error path 'conf->thread' is not
freed.

Fix the problem by setting 'mddev->thread' right after setup_conf().
Comment 1 Alexander B 2025-12-31 05:37:44 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025123030-CVE-2023-54294-e7ac@gregkh/T