linux-kernel - AF_INET SOCK

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

Date:	Wed, 17 Sep 2014 23:33:25 +0300
From:	Me Registered <me.registered@...il.com>
To:	linux-kernel@...r.kernel.org
Subject: AF_INET SOCK_RAW questions.

Hello,

While "reading" the kernel sources referring to AF_INET SOCK_RAW
sockets, i have stumbled upon some particular issues:

* in raw_icmp_error. why is the marked line required?
 290                         raw_err(raw_sk, skb, info);
 291                         raw_sk = sk_next(raw_sk);
*292                         iph = (const struct iphdr *)skb->data; // <<<<<<
 293                 }
 294         }

looking over raw_err, the skb is not changed and i don't think that it
is meant to since that means delivering different thinks to different
sockets, while iterating. (i have tracked this line back to
2.4.3.2->2.4.3.3).

* also in raw_bind:
why is there no lock_sock/release_sock while changing socket
attributes (like in rawv6_bind)?

Thanks,
Bogdan B.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/