Not a U.S. government website. NDD is an independent vulnerability database by Volerion and is not affiliated with or endorsed by NIST or NVD.
VOLERION
Volerion Security Research

NOT DEFERRED DATABASE

VULNERABILITIES

CVE-2026-100080 Details

Description

In the Linux kernel, the following vulnerability has been resolved: xen-netback: Fix UAF when reading statistics data The network statistic data in the driver is protected by RCU. Unfortunately when tearing down the queues after an error during connecting to the frontend (e.g. due to illegal Xenstore data filled in by the guest), the statistic data is being freed without synchronizing the RCU state. In case the data is being read via sysfs in this phase, access to already freed memory or memory being in new use is possible. Fix that by calling synchronize_net() before freeing the queue data. This is XSA-526 / CVE-2026-100080

Metrics

CVSS 3.x Severity and Vector Strings:

No CVSS 3.x data is available for this CVE.

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://git.kernel.org/stable/c/36f858f228e3f955b9336af7f94634747c221518 kernel.org
https://git.kernel.org/stable/c/37d5a73170579b30e67cc8b19ec69715eea3a6b6 kernel.org
https://git.kernel.org/stable/c/4223b33be49ee09acb6f1d26beb4a36dd3b8d63a kernel.org
https://git.kernel.org/stable/c/4867687b6ad28ab84bc0811d8f8f9972e769da02 kernel.org
https://git.kernel.org/stable/c/6cd611d2abdd8623a554e14145f82c1cb4e4467a kernel.org

see all 9 references

Weakness Enumeration

No weakness enumeration is available for this CVE.

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-100080
NVD Published Date:
Nov 6, 2026
NVD Last Modified:
Nov 6, 2026
Source:
kernel.org
CVE-2026-100080 Details - Not Deferred