Bug 2347944 (CVE-2022-49576)

Summary: CVE-2022-49576 kernel: ipv4: Fix data-races around sysctl_fib_multipath_hash_fields.
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: unspecifiedCC: dfreiber, drow, jburrell, vkumar
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: If docs needed, set a value
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 2025-02-26 03:12:14 UTC 
In the Linux kernel, the following vulnerability has been resolved:

ipv4: Fix data-races around sysctl_fib_multipath_hash_fields.

While reading sysctl_fib_multipath_hash_fields, it can be changed
concurrently.  Thus, we need to add READ_ONCE() to its readers.
Comment 1 Avinash Hanwate 2025-02-26 19:46:09 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025022607-CVE-2022-49576-a9e2@gregkh/T
Comment 4 Avinash Hanwate 2025-02-27 23:21:20 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025022607-CVE-2022-49576-a9e2@gregkh/T