{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata. Fed continuously.","favicon":"https://feed.craftedsignal.io/favicon-32x32.png","feed_url":"https://feed.craftedsignal.io/products/linux-xen-netback/feed.json","home_page_url":"https://feed.craftedsignal.io/","icon":"https://feed.craftedsignal.io/apple-touch-icon.png","items":[{"_cs_actors":[],"_cs_cpes":[],"_cs_cves":[{"id":"CVE-2026-99287"}],"_cs_exploited":false,"_cs_has_poc":false,"_cs_poc_references":[],"_cs_products":["Linux xen-netback"],"_cs_severities":["medium"],"_cs_tags":["linux","kernel","virtualization"],"_cs_type":"advisory","_cs_vendors":[],"content_html":"\u003cp\u003eThe Xen Security Advisory XSA-532 (CVE-2026-99287) identifies an issue in the Linux xen-netback driver. During the connection setup to a frontend, the backend maps ring pages and validates their contents. If the ring index values are illegal, the driver attempts to unmap all allocated resources; however, a missing test during this cleanup process allows a guest to trigger a double unmap of memory.\u003c/p\u003e\n","date_modified":"2026-11-11T03:39:03Z","date_published":"2026-11-11T03:39:03Z","id":"https://feed.craftedsignal.io/briefs/2026-11-xen-netback-double-unmap/","summary":"A vulnerability in the Linux xen-netback driver allows a guest to trigger a double unmap of memory during connection setup due to a missing test when handling illegal ring index values.","title":"Linux xen-netback: guest can trigger double unmap of memory (CVE-2026-99287)","url":"https://feed.craftedsignal.io/briefs/2026-11-xen-netback-double-unmap/"}],"language":"en","title":"CraftedSignal Threat Feed - Linux Xen-Netback","version":"https://jsonfeed.org/version/1.1"}