netdev - Re: [PATCH net-next v2 08/22] ovpn: implement basic TX path (UDP)

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20240305114707.0276a2bc@kernel.org>
Date: Tue, 5 Mar 2024 11:47:07 -0800
From: Jakub Kicinski <kuba@...nel.org>
To: Antonio Quartulli <antonio@...nvpn.net>
Cc: netdev@...r.kernel.org, Sergey Ryazanov <ryazanov.s.a@...il.com>, Paolo
 Abeni <pabeni@...hat.com>, Eric Dumazet <edumazet@...gle.com>
Subject: Re: [PATCH net-next v2 08/22] ovpn: implement basic TX path (UDP)

On Mon,  4 Mar 2024 16:08:59 +0100 Antonio Quartulli wrote:
> +	if (skb_is_gso(skb)) {
> +		segments = skb_gso_segment(skb, 0);
> +		if (IS_ERR(segments)) {
> +			ret = PTR_ERR(segments);
> +			net_err_ratelimited("%s: cannot segment packet: %d\n", dev->name, ret);
> +			goto drop;
> +		}
> +
> +		consume_skb(skb);
> +		skb = segments;
> +	}
> +
> +	/* from this moment on, "skb" might be a list */
> +
> +	__skb_queue_head_init(&skb_list);
> +	skb_list_walk_safe(skb, curr, next) {
> +		skb_mark_not_on_list(curr);
> +
> +		tmp = skb_share_check(curr, GFP_ATOMIC);

The share check needs to be before the segmentation, I think.