Bug 2267695 (CVE-2024-26602)

Summary:	CVE-2024-26602 kernel: sched/membarrier: reduce the ability to hammer on sys_membarrier
Product:	[Other] Security Response	Reporter:	Mauro Matteo Cascella <mcascell>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	acaringi, allarkin, aquini, bhu, chwhite, cye, cyin, dbohanno, debarbos, dfreiber, drow, dvlasenk, esandeen, ezulian, hkrzesin, jarod, jburrell, jdenham, jfaracco, jforbes, jlelli, joe.lawrence, jpoimboe, jshortt, jstancek, jwyatt, kcarcia, kyoshida, ldoskova, lgoncalv, llong, lzampier, mleitner, mmilgram, mstowell, nmurray, ptalbert, rogbas, rparrazo, rrobaina, rvrbovsk, rysulliv, scweaver, sidakwo, sukulkar, tglozar, tyberry, vkumar, wcosta, williams, wmealing, ycote, ykopkova, zhijwang
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	kernel 4.19.307, kernel 5.4.269, kernel 5.10.210, kernel 5.15.149, kernel 6.1.79, kernel 6.6.18, kernel 6.7.6	Doc Type:	If docs needed, set a value
Doc Text:	A flaw was found in sys_membarrier in the Linux kernel in sched/membarrier in how a user calls it at too high of a frequency. This flaw allows a local user to saturate the machine.	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:
Bug Depends On:	2267696
Bug Blocks:	2262049

Description Mauro Matteo Cascella 2024-03-04 13:51:22 UTC

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

sched/membarrier: reduce the ability to hammer on sys_membarrier

The Linux kernel CVE team has assigned CVE-2024-26602 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024022414-CVE-2024-26602-5e76@gregkh/

Comment 1 Mauro Matteo Cascella 2024-03-04 13:51:57 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2267696]

Comment 3 Justin M. Forbes 2024-03-04 20:35:05 UTC

This was fixed for Fedora with the 6.7.6 stable kernel update.

Comment 4 errata-xmlrpc 2024-03-12 00:44:42 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.0 Extended Update Support

Via RHSA-2024:1250 https://access.redhat.com/errata/RHSA-2024:1250

Comment 5 errata-xmlrpc 2024-03-12 00:47:38 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2024:1249 https://access.redhat.com/errata/RHSA-2024:1249

Comment 6 errata-xmlrpc 2024-03-13 09:08:12 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.0 Extended Update Support

Via RHSA-2024:1306 https://access.redhat.com/errata/RHSA-2024:1306

Comment 7 errata-xmlrpc 2024-03-14 14:51:20 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2024:1332 https://access.redhat.com/errata/RHSA-2024:1332

Comment 9 errata-xmlrpc 2024-03-27 00:11:49 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Extended Update Support

Via RHSA-2024:1533 https://access.redhat.com/errata/RHSA-2024:1533

Comment 10 errata-xmlrpc 2024-03-27 00:18:34 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Extended Update Support

Via RHSA-2024:1532 https://access.redhat.com/errata/RHSA-2024:1532

Comment 11 errata-xmlrpc 2024-04-03 00:30:56 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.6 Extended Update Support

Via RHSA-2024:1653 https://access.redhat.com/errata/RHSA-2024:1653

Comment 13 errata-xmlrpc 2024-04-23 16:28:26 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.2 Telecommunications Update Service

Via RHSA-2024:2008 https://access.redhat.com/errata/RHSA-2024:2008

Comment 14 errata-xmlrpc 2024-04-23 16:39:47 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.2 Advanced Update Support
  Red Hat Enterprise Linux 8.2 Telecommunications Update Service
  Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions

Via RHSA-2024:2006 https://access.redhat.com/errata/RHSA-2024:2006

Comment 15 errata-xmlrpc 2024-04-30 10:16:21 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2024:2394 https://access.redhat.com/errata/RHSA-2024:2394

Comment 16 errata-xmlrpc 2024-04-30 14:46:07 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 Telecommunications Update Service
  Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions

Via RHSA-2024:2585 https://access.redhat.com/errata/RHSA-2024:2585

Comment 17 errata-xmlrpc 2024-04-30 14:59:43 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 Telecommunications Update Service
  Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions

Via RHSA-2024:2582 https://access.redhat.com/errata/RHSA-2024:2582

Comment 18 errata-xmlrpc 2024-05-22 09:13:33 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2024:2950 https://access.redhat.com/errata/RHSA-2024:2950

Comment 19 errata-xmlrpc 2024-05-22 09:52:53 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2024:3138 https://access.redhat.com/errata/RHSA-2024:3138