SUSE-SU-2026:22180-1: important: Security update for xwayland

[SLE-UPDATES]

# Security update for xwayland

Announcement ID: SUSE-SU-2026:22180-1  
Release Date: 2026-06-19T16:54:15Z  
Rating: important  
References:

  * bsc#1266294
  * bsc#1266295
  * bsc#1266296
  * bsc#1266297
  * bsc#1266298
  * bsc#1266299
  * bsc#1266300
  * bsc#1266301

  
Affected Products:

  * SUSE Linux Enterprise Server 16.0
  * SUSE Linux Enterprise Server for SAP applications 16.0

  
  
An update that has eight fixes can now be installed.

## Description:

This update for xwayland fixes the following issues:

  * CreateSaverWindow Use-After-Free Information Disclosure. (bsc#1266301)
  * Font Alias Stack-based Buffer Overflow. (bsc#1266294)
  * GLX ChangeDrawableAttributes Out-Of-Bounds Read/Write. (bsc#1266300)
  * XKB Key Types Stack-based Buffer Overflow. (bsc#1266296)
  * XKB SetMap Request Stack-based Buffer Overflow. (bsc#1266297)
  * XSYNC Use-After-Free in FreeCounter(). (bsc#1266298)
  * XSYNC Use-After-Free in miSyncDestroyFence(). (bsc#1266295)
  * XSYNC Use-After-Free in SyncChangeCounter(). (bsc#1266299)

## Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like
YaST online_update or "zypper patch".  
Alternatively you can run the command listed for your product:

  * SUSE Linux Enterprise Server for SAP applications 16.0  
    zypper in -t patch SUSE-SLES-16.0-977=1

  * SUSE Linux Enterprise Server 16.0  
    zypper in -t patch SUSE-SLES-16.0-977=1

## Package List:

  * SUSE Linux Enterprise Server for SAP applications 16.0 (ppc64le x86_64)
    * xwayland-debugsource-24.1.6-160000.5.1
    * xwayland-debuginfo-24.1.6-160000.5.1
    * xwayland-24.1.6-160000.5.1
    * xwayland-devel-24.1.6-160000.5.1
  * SUSE Linux Enterprise Server 16.0 (aarch64 ppc64le s390x x86_64)
    * xwayland-debugsource-24.1.6-160000.5.1
    * xwayland-debuginfo-24.1.6-160000.5.1
    * xwayland-24.1.6-160000.5.1
    * xwayland-devel-24.1.6-160000.5.1

## References:

  * https://bugzilla.suse.com/show_bug.cgi?id=1266294
  * https://bugzilla.suse.com/show_bug.cgi?id=1266295
  * https://bugzilla.suse.com/show_bug.cgi?id=1266296
  * https://bugzilla.suse.com/show_bug.cgi?id=1266297
  * https://bugzilla.suse.com/show_bug.cgi?id=1266298
  * https://bugzilla.suse.com/show_bug.cgi?id=1266299
  * https://bugzilla.suse.com/show_bug.cgi?id=1266300
  * https://bugzilla.suse.com/show_bug.cgi?id=1266301

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