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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-31678 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: openvswitch: defer tunnel netdev_put to RCU release ovs_netdev_tunnel_destroy() may run after NETDEV_UNREGISTER already detached the device. Dropping the netdev reference in destroy can race with concurrent readers that still observe vport->dev. Do not release vport->dev in ovs_netdev_tunnel_destroy(). Instead, let vport_netdev_free() drop the reference from the RCU callback, matching the non-tunnel destroy path and avoiding additional synchronization under RTNL.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/42f0d3d81209654c08ffdde5a34b9b92d2645896 kernel.org
https://git.kernel.org/stable/c/6931d21f87bc6d657f145798fad0bf077b82486c kernel.org
https://git.kernel.org/stable/c/98b726ab5e2a4811e27c28e4d041f75bba147eab kernel.org
https://git.kernel.org/stable/c/9d56aced21fb9c104e8a3f3be9b21fbafe448ffc kernel.org
https://git.kernel.org/stable/c/b8c56a3fc5d879c0928f207a756b0f067f06c6a8 kernel.org
https://git.kernel.org/stable/c/bbe7bd722bfaea36aab3da6cc60fb4a05c644643 kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-31678
NVD Published Date:
04/25/2026
NVD Last Modified:
04/25/2026
Source:
kernel.org