Bug 2345251 (CVE-2025-26601)

Summary:	CVE-2025-26601 xorg: xwayland: Use-after-free in SyncInitTrigger()
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	security-response-team
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:	A use-after-free flaw was found in X.Org and Xwayland. When changing an alarm, the values of the change mask are evaluated one after the other, changing the trigger values as requested, and eventually, SyncInitTrigger() is called. If one of the changes triggers an error, the function will return early, not adding the new sync object, possibly causing a use-after-free when the alarm eventually triggers.	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:	2349456, 2349458, 2349460
Bug Blocks:
Deadline:	2025-02-25

Description OSIDB Bzimport 2025-02-12 14:23:32 UTC

When changing an alarm, the values of the change mask are evaluated one
after the other, changing the trigger values as requested and eventually,
SyncInitTrigger() is called.
If one of the changes triggers an error, the function will return early,
not adding the new sync object.
This can be used to cause a use after free when the alarm eventually
triggers.

Comment 1 errata-xmlrpc 2025-03-10 12:36:53 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2025:2500 https://access.redhat.com/errata/RHSA-2025:2500

Comment 2 errata-xmlrpc 2025-03-10 12:46:03 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2025:2502 https://access.redhat.com/errata/RHSA-2025:2502

Comment 3 errata-xmlrpc 2025-03-17 01:13:54 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.2 Advanced Update Support

Via RHSA-2025:2866 https://access.redhat.com/errata/RHSA-2025:2866

Comment 4 errata-xmlrpc 2025-03-17 01:27:43 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.8 Extended Update Support

Via RHSA-2025:2862 https://access.redhat.com/errata/RHSA-2025:2862

Comment 5 errata-xmlrpc 2025-03-17 01:28:27 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7 Extended Lifecycle Support

Via RHSA-2025:2861 https://access.redhat.com/errata/RHSA-2025:2861

Comment 6 errata-xmlrpc 2025-03-17 01:36:07 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-2025:2865 https://access.redhat.com/errata/RHSA-2025:2865

Comment 7 errata-xmlrpc 2025-03-17 01:37:38 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions

Via RHSA-2025:2873 https://access.redhat.com/errata/RHSA-2025:2873

Comment 8 errata-xmlrpc 2025-03-17 01:44:02 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.4 Extended Update Support

Via RHSA-2025:2875 https://access.redhat.com/errata/RHSA-2025:2875

Comment 9 errata-xmlrpc 2025-03-17 01:46:07 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Extended Update Support

Via RHSA-2025:2874 https://access.redhat.com/errata/RHSA-2025:2874

Comment 10 errata-xmlrpc 2025-03-17 03:11:16 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7 Extended Lifecycle Support

Via RHSA-2025:2879 https://access.redhat.com/errata/RHSA-2025:2879

Comment 11 errata-xmlrpc 2025-03-17 04:20:02 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-2025:2880 https://access.redhat.com/errata/RHSA-2025:2880

Comment 14 errata-xmlrpc 2025-04-17 06:35:50 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6 Extended Lifecycle Support  - EXTENSION

Via RHSA-2025:3976 https://access.redhat.com/errata/RHSA-2025:3976

Comment 15 errata-xmlrpc 2025-05-13 10:14:10 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2025:7163 https://access.redhat.com/errata/RHSA-2025:7163

Comment 16 errata-xmlrpc 2025-05-13 10:15:03 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2025:7165 https://access.redhat.com/errata/RHSA-2025:7165

Comment 17 errata-xmlrpc 2025-05-13 15:55:05 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2025:7458 https://access.redhat.com/errata/RHSA-2025:7458