このページは Ubuntu 向けの修正状況です。脆弱性そのものの説明は CVE 本体のページにあります。
CVE-2026-102700 の詳細 →
UBUNTU-CVE-2026-102700
With its original introduction, GNTTAB_cache_flush was made available uniformly. XSA-232 (CVE-2017-14318) then covered an omitted NULL pointer check,...
原文の説明
取得元が公開している説明をそのまま載せています (多くは英語)。
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.)
出典: OSV.dev (Open Source Vulnerabilities) OSV
影響パッケージ
Ubuntu:16.04:LTS
xen
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:18.04:LTS
xen
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:20.04:LTS
xen
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS
xen
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
xen
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:26.10
xen
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:26.04:LTS
xen
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
参照URL
- report ubuntu.com
- report cve.org
- report xenbits.xenproject.org
- report xenbits.xen.org