[Glamor CopyArea CPU-FBO Heap Buffer Overflow]

A flaw was found in xorg-x11-server. In the Glamor 2D graphics acceleration module, a buffer allocation error occurs during color depth conversion when processing an image whose source dimensions exceed the destination dimensions. A local user can exploit this vulnerability to trigger an out-of-bounds memory write, potentially leading to privilege escalation, arbitrary code execution, or a denial of service (DoS).

[Glamor CopyArea CPU-FBO Heap Buffer Overflow]

Important: xorg-x11-server-Xwayland security update

Important: xorg-x11-server-Xwayland security update

ELSA-2026-85193: xorg-x11-server-Xwayland security update (IMPORTANT)

ELSA-2026-85191: xorg-x11-server-Xwayland security update (IMPORTANT)

Security update for xwayland

Security update for xwayland