Bug 2426224 (CVE-2022-50822)

Summary: CVE-2022-50822 kernel: Linux kernel: Memory leak in RDMA restrack leads to Denial of Service
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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, specifically within the Remote Direct Memory Access (RDMA) restrack component. A local user could exploit this vulnerability due to a failure to properly release the Memory Region (MR) restrack when it is deleted. This oversight leads to a memory leak, which can result in a Denial of Service (DoS) condition on the system.
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 13:17:39 UTC
In the Linux kernel, the following vulnerability has been resolved:

RDMA/restrack: Release MR restrack when delete

The MR restrack also needs to be released when delete it, otherwise it
cause memory leak as the task struct won't be released.