All of lore.kernel.org
 help / color / mirror / Atom feed
From: Matthias Dellweg <2500@gmx.de>
To: David Miller <davem@davemloft.net>
Cc: Peter Lieven <pl@dlh.net>,
	sparclinux@vger.kernel.org, alan@lxorguk.ukuu.org.uk,
	torvalds@linux-foundation.org, linux-kernel@vger.kernel.org
Subject: Re: PATCH: tcp rfc 2385 security/bugfix for sparc64
Date: Tue, 16 Oct 2007 16:47:56 +0000	[thread overview]
Message-ID: <200710161848.18443.2500@gmx.de> (raw)
In-Reply-To: <23966.84.62.25.8.1191012145.squirrel@cs1.dlh.net>

Hi David,
while reviewing the tcp_md5-related code further i came across with another
two of these casts which you probably have missed. I don't actually think
that they impose a problem by now, but as you said we should remove them.
Matthias


--- linux-2.6.23.1.orig/net/ipv4/tcp_ipv4.c     2007-10-16 17:25:05.000000000 +0200
+++ linux-2.6.23.1/net/ipv4/tcp_ipv4.c  2007-10-16 17:50:05.000000000 +0200
@@ -857,16 +857,16 @@ int tcp_v4_md5_do_add(struct sock *sk, _
                      u8 *newkey, u8 newkeylen)
 {
        /* Add Key to the list */
-       struct tcp4_md5sig_key *key;
+       struct tcp_md5sig_key *key;
        struct tcp_sock *tp = tcp_sk(sk);
        struct tcp4_md5sig_key *keys;

-       key = (struct tcp4_md5sig_key *)tcp_v4_md5_do_lookup(sk, addr);
+       key = tcp_v4_md5_do_lookup(sk, addr);
        if (key) {
                /* Pre-existing entry - just update that one. */
-               kfree(key->base.key);
-               key->base.key = newkey;
-               key->base.keylen = newkeylen;
+               kfree(key->key);
+               key->key = newkey;
+               key->keylen = newkeylen;
        } else {
                struct tcp_md5sig_info *md5sig;

--- linux-2.6.23.1.orig/net/ipv6/tcp_ipv6.c     2007-10-16 17:47:57.000000000 +0200
+++ linux-2.6.23.1/net/ipv6/tcp_ipv6.c  2007-10-16 17:49:25.000000000 +0200
@@ -560,16 +560,16 @@ static int tcp_v6_md5_do_add(struct sock
                             char *newkey, u8 newkeylen)
 {
        /* Add key to the list */
-       struct tcp6_md5sig_key *key;
+       struct tcp_md5sig_key *key;
        struct tcp_sock *tp = tcp_sk(sk);
        struct tcp6_md5sig_key *keys;

-       key = (struct tcp6_md5sig_key*) tcp_v6_md5_do_lookup(sk, peer);
+       key = tcp_v6_md5_do_lookup(sk, peer);
        if (key) {
                /* modify existing entry - just update that one */
-               kfree(key->base.key);
-               key->base.key = newkey;
-               key->base.keylen = newkeylen;
+               kfree(key->key);
+               key->key = newkey;
+               key->keylen = newkeylen;
        } else {
                /* reallocate new list if current one is full. */
                if (!tp->md5sig_info) {


Signed-off-by: Matthias M. Dellweg <2500@gmx.de>

WARNING: multiple messages have this Message-ID (diff)
From: Matthias Dellweg <2500@gmx.de>
To: David Miller <davem@davemloft.net>
Cc: Peter Lieven <pl@dlh.net>,
	sparclinux@vger.kernel.org, alan@lxorguk.ukuu.org.uk,
	torvalds@linux-foundation.org, linux-kernel@vger.kernel.org
Subject: Re: PATCH: tcp rfc 2385 security/bugfix for sparc64
Date: Tue, 16 Oct 2007 18:47:56 +0200	[thread overview]
Message-ID: <200710161848.18443.2500@gmx.de> (raw)

Hi David,
while reviewing the tcp_md5-related code further i came across with another
two of these casts which you probably have missed. I don't actually think
that they impose a problem by now, but as you said we should remove them.
Matthias


--- linux-2.6.23.1.orig/net/ipv4/tcp_ipv4.c     2007-10-16 17:25:05.000000000 +0200
+++ linux-2.6.23.1/net/ipv4/tcp_ipv4.c  2007-10-16 17:50:05.000000000 +0200
@@ -857,16 +857,16 @@ int tcp_v4_md5_do_add(struct sock *sk, _
                      u8 *newkey, u8 newkeylen)
 {
        /* Add Key to the list */
-       struct tcp4_md5sig_key *key;
+       struct tcp_md5sig_key *key;
        struct tcp_sock *tp = tcp_sk(sk);
        struct tcp4_md5sig_key *keys;

-       key = (struct tcp4_md5sig_key *)tcp_v4_md5_do_lookup(sk, addr);
+       key = tcp_v4_md5_do_lookup(sk, addr);
        if (key) {
                /* Pre-existing entry - just update that one. */
-               kfree(key->base.key);
-               key->base.key = newkey;
-               key->base.keylen = newkeylen;
+               kfree(key->key);
+               key->key = newkey;
+               key->keylen = newkeylen;
        } else {
                struct tcp_md5sig_info *md5sig;

--- linux-2.6.23.1.orig/net/ipv6/tcp_ipv6.c     2007-10-16 17:47:57.000000000 +0200
+++ linux-2.6.23.1/net/ipv6/tcp_ipv6.c  2007-10-16 17:49:25.000000000 +0200
@@ -560,16 +560,16 @@ static int tcp_v6_md5_do_add(struct sock
                             char *newkey, u8 newkeylen)
 {
        /* Add key to the list */
-       struct tcp6_md5sig_key *key;
+       struct tcp_md5sig_key *key;
        struct tcp_sock *tp = tcp_sk(sk);
        struct tcp6_md5sig_key *keys;

-       key = (struct tcp6_md5sig_key*) tcp_v6_md5_do_lookup(sk, peer);
+       key = tcp_v6_md5_do_lookup(sk, peer);
        if (key) {
                /* modify existing entry - just update that one */
-               kfree(key->base.key);
-               key->base.key = newkey;
-               key->base.keylen = newkeylen;
+               kfree(key->key);
+               key->key = newkey;
+               key->keylen = newkeylen;
        } else {
                /* reallocate new list if current one is full. */
                if (!tp->md5sig_info) {


Signed-off-by: Matthias M. Dellweg <2500@gmx.de>

  parent reply	other threads:[~2007-10-16 16:47 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-09-28 20:42 PATCH: tcp rfc 2385 security/bugfix for sparc64 Peter Lieven
2007-09-28 20:42 ` Peter Lieven
2007-09-28 21:20 ` David Miller
2007-09-28 21:20   ` David Miller
2007-09-28 21:30   ` David Miller
2007-09-28 21:30     ` David Miller
2007-10-16 16:47 ` Matthias Dellweg [this message]
2007-10-16 16:47   ` Matthias Dellweg
2007-10-30  3:51   ` David Miller
2007-10-30  3:51     ` David Miller

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=200710161848.18443.2500@gmx.de \
    --to=2500@gmx.de \
    --cc=alan@lxorguk.ukuu.org.uk \
    --cc=davem@davemloft.net \
    --cc=linux-kernel@vger.kernel.org \
    --cc=pl@dlh.net \
    --cc=sparclinux@vger.kernel.org \
    --cc=torvalds@linux-foundation.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.