Bug 2373630 (CVE-2022-50020)

Summary:	CVE-2022-50020 kernel: ext4: avoid resizing to a partial cluster size
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:
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Regression:	---	Mount Type:	---
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2025-06-18 12:11:28 UTC

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

ext4: avoid resizing to a partial cluster size

This patch avoids an attempt to resize the filesystem to an
unaligned cluster boundary.  An online resize to a size that is not
integral to cluster size results in the last iteration attempting to
grow the fs by a negative amount, which trips a BUG_ON and leaves the fs
with a corrupted in-memory superblock.

Comment 1 Avinash Hanwate 2025-06-19 01:03:50 UTC

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025061835-CVE-2022-50020-6f27@gregkh/T

Comment 6 errata-xmlrpc 2025-08-04 16:23:15 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2025:12753 https://access.redhat.com/errata/RHSA-2025:12753

Comment 7 errata-xmlrpc 2025-08-04 16:51:33 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2025:12752 https://access.redhat.com/errata/RHSA-2025:12752

Comment 9 errata-xmlrpc 2025-08-13 02:41:34 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 10 errata-xmlrpc 2025-08-13 15:26:28 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-2025:13805 https://access.redhat.com/errata/RHSA-2025:13805

Comment 11 errata-xmlrpc 2025-08-19 00:18:34 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 12 errata-xmlrpc 2025-08-19 13:16:55 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 13 errata-xmlrpc 2025-08-20 08:08:33 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.2 Advanced Update Support

Via RHSA-2025:14136 https://access.redhat.com/errata/RHSA-2025:14136

Comment 14 errata-xmlrpc 2025-08-25 01:53:44 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions
  Red Hat Enterprise Linux 8.8 Telecommunications Update Service

Via RHSA-2025:14418 https://access.redhat.com/errata/RHSA-2025:14418

Comment 15 errata-xmlrpc 2025-08-27 11:40:51 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 16 errata-xmlrpc 2025-08-27 12:39:50 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