netdev - Re: [PATCH net-next] tcp: fix incorrect parameter validation in the do_tcp

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]

Date: Wed, 06 Mar 2024 12:36:39 +0100
From: Paolo Abeni <pabeni@...hat.com>
To: Gavrilov Ilia <Ilia.Gavrilov@...otecs.ru>, Eric Dumazet
	 <edumazet@...gle.com>
Cc: "David S. Miller" <davem@...emloft.net>, David Ahern
 <dsahern@...nel.org>,  Jakub Kicinski <kuba@...nel.org>,
 "netdev@...r.kernel.org" <netdev@...r.kernel.org>, 
 "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
 "lvc-project@...uxtesting.org" <lvc-project@...uxtesting.org>
Subject: Re: [PATCH net-next] tcp: fix incorrect parameter validation in the
 do_tcp_getsockopt() function

On Wed, 2024-03-06 at 09:57 +0000, Gavrilov Ilia wrote:
> The 'len' variable can't be negative because all 'min_t' parameters
> cast to unsigned int, and then the minimum one is chosen.

The above is incorrect, as the 'len' variable is a signed integer 


The same applies to the following patches. 

Cheers,

Paolo