VYPR
High severity7.8NVD Advisory· Published Apr 25, 2026· Updated May 6, 2026

CVE-2026-31678

CVE-2026-31678

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

41

Patches

Vulnerability mechanics

References

6

News mentions

0

No linked articles in our index yet.