netdev - Re: [PATCH v1 net-next 4/8] tcp: Don't pass cookie to __cookie_v[46]

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: <20231124214525.GB50352@kernel.org>
Date: Fri, 24 Nov 2023 21:45:25 +0000
From: Simon Horman <horms@...nel.org>
To: Kuniyuki Iwashima <kuniyu@...zon.com>
Cc: "David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Kuniyuki Iwashima <kuni1840@...il.com>, netdev@...r.kernel.org
Subject: Re: [PATCH v1 net-next 4/8] tcp: Don't pass cookie to
 __cookie_v[46]_check().

On Wed, Nov 22, 2023 at 05:25:17PM -0800, Kuniyuki Iwashima wrote:
> tcp_hdr(skb) and SYN Cookie are passed to __cookie_v[46]_check(), but
> none of the callers passes cookie other than ntohl(th->ack_seq) - 1.
> 
> Let's fetch it in __cookie_v[46]_check() instead of passing the cookie
> over and over.
> 
> Signed-off-by: Kuniyuki Iwashima <kuniyu@...zon.com>

Reviewed-by: Simon Horman <horms@...nel.org>