From mboxrd@z Thu Jan 1 00:00:00 1970 From: arno@natisbad.org (Arnaud Ebalard) Subject: [BUG,PATCH] XFRM: copy_to_user_kmaddress() reports local address twice Date: Mon, 03 Nov 2008 10:23:27 +0100 Message-ID: <87vdv5uprk.fsf@natisbad.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: netdev@vger.kernel.org, Andreas Steffen , Martin Willi To: David Miller Return-path: Received: from moog.chdir.org ([88.191.42.160]:53870 "EHLO moog.chdir.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754640AbYKCJZN (ORCPT ); Mon, 3 Nov 2008 04:25:13 -0500 Sender: netdev-owner@vger.kernel.org List-ID: Hi David, Stupid bug, sorry for that. Attached patch is against current net-2.6. Cheers, a+ While adding support for MIGRATE/KMADDRESS in strongSwan (as specified in draft-ebalard-mext-pfkey-enhanced-migrate-00), Andreas Steffen noticed that XFRMA_KMADDRESS attribute passed to userland contains the local address twice (remote provides local address instead of remote one). This bug in copy_to_user_kmaddress() affects only key managers that use native XFRM interface (key managers that use PF_KEY are not affected). For the record, the bug was in the initial changeset I posted which added support for KMADDRESS (13c1d18931ebb5cf407cb348ef2cd6284d68902d). Signed-off-by: Arnaud Ebalard Reported-by: Andreas Steffen --- net/xfrm/xfrm_user.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c index 4a8a1ab..a278a6f 100644 --- a/net/xfrm/xfrm_user.c +++ b/net/xfrm/xfrm_user.c @@ -1816,7 +1816,7 @@ static int copy_to_user_kmaddress(struct xfrm_kmaddress *k, struct sk_buff *skb) uk.family = k->family; uk.reserved = k->reserved; memcpy(&uk.local, &k->local, sizeof(uk.local)); - memcpy(&uk.remote, &k->local, sizeof(uk.remote)); + memcpy(&uk.remote, &k->remote, sizeof(uk.remote)); return nla_put(skb, XFRMA_KMADDRESS, sizeof(uk), &uk); } -- 1.5.6.3