Bug 2373672 (CVE-2022-50022)

Summary:	CVE-2022-50022 kernel: drivers:md:fix a potential use-after-free bug
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	dfreiber, drow, jburrell, vkumar
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	---
Doc Text:	A use-after-free bug exists in the linux kernel such that in the line "raid5_release_stripe(sh);" drops the reference to sh and may cause sh to be released. However, sh is subsequently used in lines "if (sh->batch_head && sh != sh->batch_head)" resulting in a minor application crash.	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 2025-06-18 12:13:14 UTC

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

drivers:md:fix a potential use-after-free bug

In line 2884, "raid5_release_stripe(sh);" drops the reference to sh and
may cause sh to be released. However, sh is subsequently used in lines
2886 "if (sh->batch_head && sh != sh->batch_head)". This may result in an
use-after-free bug.

It can be fixed by moving "raid5_release_stripe(sh);" to the bottom of
the function.

Comment 1 Avinash Hanwate 2025-06-18 18:26:28 UTC

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025061835-CVE-2022-50022-98b6@gregkh/T

Comment 5 errata-xmlrpc 2025-07-30 06:05:14 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On

Via RHSA-2025:12238 https://access.redhat.com/errata/RHSA-2025:12238

Comment 6 errata-xmlrpc 2025-08-04 05:09:35 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.2 Advanced Update Support

Via RHSA-2025:12623 https://access.redhat.com/errata/RHSA-2025:12623

Comment 7 errata-xmlrpc 2025-08-13 02:41:37 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions
  Red Hat Enterprise Linux 8.6 Telecommunications Update Service

Via RHSA-2025:13776 https://access.redhat.com/errata/RHSA-2025:13776

Comment 8 errata-xmlrpc 2025-08-19 00:18:35 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions

Via RHSA-2025:14054 https://access.redhat.com/errata/RHSA-2025:14054

Comment 9 errata-xmlrpc 2025-08-19 13:16:58 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions

Via RHSA-2025:14094 https://access.redhat.com/errata/RHSA-2025:14094

Comment 10 errata-xmlrpc 2025-08-27 11:40:52 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7 Extended Lifecycle Support

Via RHSA-2025:14746 https://access.redhat.com/errata/RHSA-2025:14746

Comment 11 errata-xmlrpc 2025-08-27 12:39:51 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7 Extended Lifecycle Support

Via RHSA-2025:14748 https://access.redhat.com/errata/RHSA-2025:14748