Vulnerabilities > CVE-2025-26599 - Access of Uninitialized Pointer vulnerability in multiple products

Summary

An access to an uninitialized pointer flaw was found in X.Org and Xwayland. The function compCheckRedirect() may fail if it cannot allocate the backing pixmap. In that case, compRedirectWindow() will return a BadAlloc error without validating the window tree marked just before, which leaves the validated data partly initialized and the use of an uninitialized pointer later.

Vulnerable Configurations

Common Weakness Enumeration (CWE)

• CWE-824 - Access of Uninitialized Pointer

References