Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected a9020fde67a6eb77f8130feff633189f99264db1 before 9d56aced21fb9c104e8a3f3be9b21fbafe448ffc; affected a9020fde67a6eb77f8130feff633189f99264db1 before 42f0d3d81209654c08ffdde5a34b9b92d2645896; affected a9020fde67a6eb77f8130feff633189f99264db1 before bbe7bd722bfaea36aab3da6cc60fb4a05c644643; affected a9020fde67a6eb77f8130feff633189f99264db1 before 98b726ab5e2a4811e27c28e4d041f75bba147eab; affected a9020fde67a6eb77f8130feff633189f99264db1 before b8c56a3fc5d879c0928f207a756b0f067f06c6a8; affected a9020fde67a6eb77f8130feff633189f99264db1 before 6931d21f87bc6d657f145798fad0bf077b82486c |
| Linux / Linux | affected 4.3; unaffected 0 before 4.3; unaffected 6.1.168 through 6.1.*; unaffected 6.6.131 through 6.6.*; unaffected 6.12.80 through 6.12.*; unaffected 6.18.21 through 6.18.*; unaffected 6.19.11 through 6.19.*; unaffected 7.0 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/9d56aced21fb9c104e8a3f3be9b21fbafe448ffc
- https://git.kernel.org/stable/c/42f0d3d81209654c08ffdde5a34b9b92d2645896
- https://git.kernel.org/stable/c/bbe7bd722bfaea36aab3da6cc60fb4a05c644643
- https://git.kernel.org/stable/c/98b726ab5e2a4811e27c28e4d041f75bba147eab
- https://git.kernel.org/stable/c/b8c56a3fc5d879c0928f207a756b0f067f06c6a8
- https://git.kernel.org/stable/c/6931d21f87bc6d657f145798fad0bf077b82486c
ADP enrichment
No English description supplied.
No references supplied.