CVE-2026-102700

Published: Oct 13, 2026Modified: Oct 20, 2026

4.7

Vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploitability: 1.0 / Impact: 3.6

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Description

With its original introduction, GNTTAB_cache_flush was made available uniformly. XSA-232 (CVE-2017-14318) then covered an omitted NULL pointer check, yet the addition of that check failed to adjust the subsequent error path. That error path fails to drop a page reference in case the specified page is owned by a special system domain (DOM_IO and DOM_COW are system domains which can have memory pages assigned to them.)

Related CWEs

CWE-404

Improper Resource Shutdown or Release

The product does not release or incorrectly releases a resource before it is made available for re-use.

References (2)

https://xenbits.xenproject.org/xsa/advisory-520.html

Source: security@xen.org

http://xenbits.xen.org/xsa/advisory-520.html

Source: af854a3a-2127-422b-91ae-364da2661108

Timeline

No history available yet.