RLSA-2023:2786 Moderate: wayland security, bug fix, and enhancement update

Wayland is a protocol for a compositor to talk to its clients, as well as a C library implementation of that protocol. The compositor can be a standalone display server running on Linux kernel modesetting and evdev input devices, an X application, or a wayland client itself. The clients can be...

JLSEC-2026-97

An internal reference count is held on the buffer pool, incremented every time a new buffer is created from the pool. The reference count is maintained as an int; on LP64 systems this can cause the reference count to overflow if the client creates a large number of wlshm buffer objects, or if it...

PT-2026-35037

An internal reference count is held on the buffer pool, incremented every time a new buffer is created from the pool. The reference count is maintained as an int; on LP64 systems this can cause the reference count to overflow if the client creates a large number of wl shm buffer objects, or if it...

DEBIAN-CVE-2021-3782

An internal reference count is held on the buffer pool, incremented every time a new buffer is created from the pool. The reference count is maintained as an int; on LP64 systems this can cause the reference count to overflow if the client creates a large number of wlshm buffer objects, or if it...

Use After Free

Overview Affected versions of this package are vulnerable to Use After Free when the client creates a large number of wlshm buffer objects, or if it can coerce the server to create a large number of external references to the buffer storage. Remediation Upgrade wayland to version 1.21.0 or higher...

PT-2021-8110 · Xwayland +9 · Xwayland +9

Name of the Vulnerable Software and Affected Versions: Wayland affected versions not specified Description: The issue is related to an integer overflow in the reference count of the buffer pool. This can occur when a large number of wl shm buffer objects are created or when the server is coerced...