CVE-2026-102700 — gnttab: cache-flush handling may cause page reference leak
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 c…
Published: 2026-10-13 · CVSS: 4.7 · CVSS 3.1
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.)
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7