Bug 2439872 (CVE-2026-23144) - CVE-2026-23144 kernel: Linux kernel: Local denial of service and memory leak in DAMON sysfs via setup failure
Summary: CVE-2026-23144 kernel: Linux kernel: Local denial of service and memory leak ...
Keywords:
Status: NEW
Alias: CVE-2026-23144
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-02-14 16:02 UTC by OSIDB Bzimport
Modified: 2026-04-24 15:58 UTC (History)
0 users

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2026:10108 0 None None None 2026-04-23 22:46:41 UTC
Red Hat Product Errata RHSA-2026:6153 0 None None None 2026-03-30 11:06:25 UTC
Red Hat Product Errata RHSA-2026:6632 0 None None None 2026-04-06 07:49:58 UTC
Red Hat Product Errata RHSA-2026:8342 0 None None None 2026-04-15 20:06:44 UTC
Red Hat Product Errata RHSA-2026:9112 0 None None None 2026-04-20 20:28:55 UTC
Red Hat Product Errata RHSA-2026:9512 0 None None None 2026-04-22 00:11:15 UTC
Red Hat Product Errata RHSA-2026:9644 0 None None None 2026-04-22 08:05:10 UTC

Description OSIDB Bzimport 2026-02-14 16:02:43 UTC 
In the Linux kernel, the following vulnerability has been resolved:

mm/damon/sysfs: cleanup attrs subdirs on context dir setup failure

When a context DAMON sysfs directory setup is failed after setup of attrs/
directory, subdirectories of attrs/ directory are not cleaned up.  As a
result, DAMON sysfs interface is nearly broken until the system reboots,
and the memory for the unremoved directory is leaked.

Cleanup the directories under such failures.
Comment 1 Alexander B 2026-02-16 13:15:02 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026021417-CVE-2026-23144-297b@gregkh/T
Comment 6 errata-xmlrpc 2026-03-30 11:06:24 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:6153 https://access.redhat.com/errata/RHSA-2026:6153
Comment 7 errata-xmlrpc 2026-04-06 07:49:57 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:6632 https://access.redhat.com/errata/RHSA-2026:6632
Comment 8 errata-xmlrpc 2026-04-15 20:06:43 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support

Via RHSA-2026:8342 https://access.redhat.com/errata/RHSA-2026:8342
Comment 9 errata-xmlrpc 2026-04-20 20:28:54 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.6 Extended Update Support

Via RHSA-2026:9112 https://access.redhat.com/errata/RHSA-2026:9112
Comment 10 errata-xmlrpc 2026-04-22 00:11:14 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

Via RHSA-2026:9512 https://access.redhat.com/errata/RHSA-2026:9512
Comment 11 errata-xmlrpc 2026-04-22 08:05:09 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

Via RHSA-2026:9644 https://access.redhat.com/errata/RHSA-2026:9644
Comment 12 errata-xmlrpc 2026-04-23 22:46:40 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.4 Extended Update Support

Via RHSA-2026:10108 https://access.redhat.com/errata/RHSA-2026:10108
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