CVE-2026-31678 (GCVE-0-2026-31678)
Vulnerability from cvelistv5
Published
2026-04-25 08:46
Modified
2026-10-19 18:56
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: a9020fde67a6eb77f8130feff633189f99264db1
Version: a9020fde67a6eb77f8130feff633189f99264db1
Version: a9020fde67a6eb77f8130feff633189f99264db1
Version: a9020fde67a6eb77f8130feff633189f99264db1
Version: a9020fde67a6eb77f8130feff633189f99264db1
Version: a9020fde67a6eb77f8130feff633189f99264db1
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