Detections
Analytics
CVE-2025-26599
high
Description
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.
References
https://bugzilla.redhat.com/show_bug.cgi?id=2345253
https://access.redhat.com/security/cve/CVE-2025-26599
https://access.redhat.com/errata/RHSA-2025:2880
https://access.redhat.com/errata/RHSA-2025:2879
https://access.redhat.com/errata/RHSA-2025:2875
https://access.redhat.com/errata/RHSA-2025:2874
https://access.redhat.com/errata/RHSA-2025:2873
https://access.redhat.com/errata/RHSA-2025:2866
https://access.redhat.com/errata/RHSA-2025:2865
https://access.redhat.com/errata/RHSA-2025:2862
https://access.redhat.com/errata/RHSA-2025:2861