openSUSE-SU-2026:20896-1

This update for xorg-x11-server fixes the following issues:

• CreateSaverWindow Use-After-Free Information Disclosure. (bsc#1266301)
• DRI2 DRIGetBuffers/DRIGetBuffersWithFormat Out-Of-Bounds Write. (bsc#1266302)
• 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)