netdev - Re: [PATCH 3/9] Fix leaking of kernel heap addresses in net/

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] [day] [month] [year] [list]

Message-ID: <1289149872.2478.155.camel@edumazet-laptop>
Date:	Sun, 07 Nov 2010 18:11:12 +0100
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Dan Rosenberg <drosenberg@...curity.com>
Cc:	chas@....nrl.navy.mil, davem@...emloft.net, kuznet@....inr.ac.ru,
	pekkas@...core.fi, jmorris@...ei.org, yoshfuji@...ux-ipv6.org,
	kaber@...sh.net, remi.denis-courmont@...ia.com,
	netdev@...r.kernel.org, security@...nel.org, stable@...nel.org
Subject: Re: [PATCH 3/9] Fix leaking of kernel heap addresses in net/

Le dimanche 07 novembre 2010 à 11:31 -0500, Dan Rosenberg a écrit :
> Signed-off-by: Dan Rosenberg <drosenberg@...curity.com>
> 
> diff -urp linux-2.6.37-rc1.orig/net/ipv4/af_inet.c linux-2.6.37-rc1/net/ipv4/af_inet.c
> --- linux-2.6.37-rc1.orig/net/ipv4/af_inet.c	2010-11-01 07:54:12.000000000 -0400
> +++ linux-2.6.37-rc1/net/ipv4/af_inet.c	2010-11-07 10:31:41.000000000 -0500
> @@ -139,12 +139,13 @@ void inet_sock_destruct(struct sock *sk)
>  	sk_mem_reclaim(sk);
>  
>  	if (sk->sk_type == SOCK_STREAM && sk->sk_state != TCP_CLOSE) {
> -		pr_err("Attempt to release TCP socket in state %d %p\n",
> -		       sk->sk_state, sk);
> +		pr_err("Attempt to release TCP socket in state %d %lu\n",
> +		       sk->sk_state, sock_i_ino(sk));
>  		return;
>  	}

Why a non root user can read this debugging stuff, I ask.

I suggest "dmesg" for them sends them a Windows XP system log,
and /proc/cpuinfo pretends machine is a Z80, somewhat modified to have
65536 cores.



--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html