Xen Security Advisory 521 v2 (CVE-2026-102701) - tapdisk: Out-of-bounds access in tap_ctl_connect

Xen Security Advisory 521 v2 (CVE-2026-102701) - tapdisk: Out-of-bounds access in tap_ctl_connect_xenblkif()

Summary by Cyber Security News13 Oct 2026, 15:08 CET

About this summary. This is a short excerpt from the description that oss-security published with its article. Cyber Security News did not report or verify the underlying story. Read the original: https://seclists.org/oss-sec/2026/q4/149

Posted by Xen . org security team on Oct 13 Xen Security Advisory CVE-2026-102701 / XSA-521 version 2 tapdisk: Out-of-bounds access in tap_ctl_connect_xenblkif() UPDATES IN VERSION 2 Public release. ISSUE DESCRIPTION Tapdisk is a userspace xen-blkback implementation used by the XAPI toolstack. During connection, multi-page rings may be negotiated between the frontend and backend.

Read the full article at oss-security →

Source attribution: headline and facts are from oss-security (seclists.org). Summary method: excerpt of the source description. See our source attribution policy.

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