Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S935400AbXHGUsd (ORCPT ); Tue, 7 Aug 2007 16:48:33 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S964826AbXHGUq4 (ORCPT ); Tue, 7 Aug 2007 16:46:56 -0400 Received: from pentafluge.infradead.org ([213.146.154.40]:51330 "EHLO pentafluge.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S935222AbXHGUqx (ORCPT ); Tue, 7 Aug 2007 16:46:53 -0400 Date: Tue, 7 Aug 2007 13:43:04 -0700 From: Greg KH To: linux-kernel@vger.kernel.org, stable@kernel.org Cc: Justin Forbes , Zwane Mwaikambo , "Theodore Ts'o" , Randy Dunlap , Dave Jones , Chuck Wolber , Chris Wedgwood , Michael Krufky , Chuck Ebbert , Domenico Andreoli , torvalds@linux-foundation.org, akpm@linux-foundation.org, alan@lxorguk.ukuu.org.uk, bunk@stusta.de, Vlad Yasevich Subject: [2.6.22.2 review 08/84] SCTP scope_id handling fix Message-ID: <20070807204304.GI23028@kroah.com> References: <20070807204034.882009319@mini.kroah.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline; filename="sctp-scope_id-handling-fix.patch" In-Reply-To: <20070807204157.GA23028@kroah.com> User-Agent: Mutt/1.5.15 (2007-04-06) X-Bad-Reply: References and In-Reply-To but no 'Re:' in Subject. Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1071 Lines: 36 From: Vlad Yasevich SCTP: Add scope_id validation for link-local binds SCTP currently permits users to bind to link-local addresses, but doesn't verify that the scope id specified at bind matches the interface that the address is configured on. It was report that this can hang a system. Signed-off-by: Vlad Yasevich Signed-off-by: Greg Kroah-Hartman --- net/sctp/ipv6.c | 4 ++++ 1 file changed, 4 insertions(+) --- a/net/sctp/ipv6.c +++ b/net/sctp/ipv6.c @@ -875,6 +875,10 @@ static int sctp_inet6_send_verify(struct dev = dev_get_by_index(addr->v6.sin6_scope_id); if (!dev) return 0; + if (!ipv6_chk_addr(&addr->v6.sin6_addr, dev, 0)) { + dev_put(dev); + return 0; + } dev_put(dev); } af = opt->pf->af; -- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/