xorg-x11-server / xwayland GLX contextTags Use-After-Free in CommonMakeCurrent()
Published Jul 8, 2026 · Updated Nov 3, 2026
Original summary
Normalized public record · Updated Nov 3, 2026
xorg-x11-server / xwayland GLX contextTags Use-After-Free in CommonMakeCurrent()
Publisher and source text is retained separately from QFinch interpretation.
QFinch assessment
Local attackers with a X connection able to provide GLX commit to the X server xorg-server before 21.2.24 and xwayland before 24.1.13 could cause a Heap Use After Free, due to CommonMakeCurrent() pointing into potentially reallocated memory.
Evidence: public source recordsAffected products
| Affected package, product or range | Fix status |
|---|---|
| Consult the referenced vendor advisory for affected versions. | Consult source advisory |
Matching a version is only one part of assessing exposure. QFinch has not assessed your environment on this public page.
Remediation
Apply the vendor-supported fixed release or mitigation, then verify the affected component is no longer reachable.
- Confirm the affected product and reachable code path exist in your environment.
- Apply the vendor-supported patch or mitigation from the primary advisory.
- Rescan the exact deployed revision and retain verification evidence.
Evidence coverage
- SSVC priority
- MEDIUM
- Confidence
- Not available
- Aliases
- None reported
Scores appear only when corresponding evidence exists. Missing data is never interpreted as zero risk.
Sources and record history
Record history
Published Jul 8, 2026 · Last refreshed Nov 3, 2026