[PATCH] Fix netns UAF introduced by commit 1be52169c348

[Christoph Hellwig]

On Tue, Apr 01, 2025 at 02:19:34PM +0800, shaopeijie at cestc.cn wrote:
> +	/* sock_create_kern() does not take a reference to
> +	 * current->nsproxy->net_ns, use init_net instead.
> +	 * This also avoid changing sock's netns from previous
> +	 * creator's netns to init_net when sock is re-created
> +	 * by nvme recovery path.
> +	 */

Kernel comment style is

	/*
	 * ....
	 */

> +	ret = sock_create_kern(&init_net,
>  			ctrl->addr.ss_family, SOCK_STREAM,
>  			IPPROTO_TCP, &queue->sock);

This can be realigned:

	ret = sock_create_kern(&init_net, ctrl->addr.ss_family, SOCK_STREAM,
 			IPPROTO_TCP, &queue->sock);