CVE-2026-31678

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.
CVSS

No CVSS.

Configurations

No configuration.

History

25 Apr 2026, 09:16

Type Values Removed Values Added
New CVE

Information

Published : 2026-04-25 09:16

Updated : 2026-04-25 09:16


NVD link : CVE-2026-31678

Mitre link : CVE-2026-31678

CVE.ORG link : CVE-2026-31678


JSON object : View

Products Affected

No product.

CWE

No CWE.