Hello:
This patch was applied to netdev/net.git (main)
by Paolo Abeni <[email protected]>:
On Thu, 30 Apr 2026 23:32:50 +0200 you wrote:
> When a tunnel vport is created it first creates the tunnel device, e.g.,
> with geneve_dev_create_fb(), then it calls ovs_netdev_link() to take a
> reference and link it to the device that represents openvswitch datapath.
>
> The creation of the device is happening under RTNL, but then RTNL is
> released and re-acquired to find the device by name. It is technically
> possible for the tunnel device to be re-named or deleted within that
> window while RTNL is not held, and some other device created in its
> place. This will cause a non-tunnel device to be referenced in the
> vport and tunnel-specific functions used on it, e.g. vxlan_get_options()
> that directly casts the private netdev data into a struct vxlan_dev
> causing an invalid memory access:
>
> [...]
Here is the summary with links:
- [net] openvswitch: vport: fix race between tunnel creation and linking
https://git.kernel.org/netdev/net/c/83861c48ba12
You are awesome, thank you!
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