VDB
DEBIAN-CVE-2026-31678
DEBIAN-CVE-2026-31678
PUBLISHED
CVSS 7.800000190734863 HIGH
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.
Risk Scores
CVSS 3.1
7.800000190734863
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:13 | linux | 6.12.85-1~bpo12+1, 6.12.74-2~bpo12+1, 6.12.74-2 |
| Debian:14 | linux | 6.12.73-1, 6.12.73-1~bpo12+1, 6.12.74-1 |
| Debian | linux | |
| Debian:12 | linux | 6.1.158-1, 6.1.159-1, 6.1.162-1 |
Timeline
- Apr 25, 2026 CVE Published
- Oct 23, 2026 CVE Updated