From patchwork Sun Feb 28 15:18:16 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Aring X-Patchwork-Id: 12108291 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7947FC433E9 for ; Sun, 28 Feb 2021 15:20:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4D86764D5D for ; Sun, 28 Feb 2021 15:20:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231169AbhB1PUd (ORCPT ); Sun, 28 Feb 2021 10:20:33 -0500 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:22558 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231139AbhB1PUC (ORCPT ); Sun, 28 Feb 2021 10:20:02 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1614525516; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=PeSpDSkiOIRLibPx5IY1ERbxboVDlbwir0mbFIxNQ4c=; b=SGg4rYYhGHoscfg+UNAoy4XPT9Ndd6lAf8WHE6AFrbyScqKETrf46Ies3uix7fpsnzHQ9Z /n2R9YR/J+mtjUq2tERGoNbc6nPEyWprBO1uNfoepjyfV46VRm105AC5gob1RPQUJAbmQ6 CgMuwf5hhaRfCJa7NImQ+h0OIh97RwQ= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-597-YTShLGthP2OJqeAxgZcPQQ-1; Sun, 28 Feb 2021 10:18:32 -0500 X-MC-Unique: YTShLGthP2OJqeAxgZcPQQ-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 639D110066F0; Sun, 28 Feb 2021 15:18:31 +0000 (UTC) Received: from carbon.redhat.com (ovpn-112-225.rdu2.redhat.com [10.10.112.225]) by smtp.corp.redhat.com (Postfix) with ESMTP id F2AC85C1D5; Sun, 28 Feb 2021 15:18:30 +0000 (UTC) From: Alexander Aring To: stefan@datenfreihafen.org Cc: linux-wpan@vger.kernel.org, netdev@vger.kernel.org Subject: [PATCH wpan 16/17] net: ieee802154: forbid monitor for del llsec seclevel Date: Sun, 28 Feb 2021 10:18:16 -0500 Message-Id: <20210228151817.95700-17-aahringo@redhat.com> In-Reply-To: <20210228151817.95700-1-aahringo@redhat.com> References: <20210228151817.95700-1-aahringo@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 Precedence: bulk List-ID: X-Mailing-List: linux-wpan@vger.kernel.org This patch forbids to del llsec seclevel for monitor interfaces which we don't support yet. Otherwise we will access llsec mib which isn't initialized for monitors. Reported-by: syzbot+fbf4fc11a819824e027b@syzkaller.appspotmail.com Signed-off-by: Alexander Aring --- net/ieee802154/nl802154.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/net/ieee802154/nl802154.c b/net/ieee802154/nl802154.c index e5181de4a77a..576e418cf5aa 100644 --- a/net/ieee802154/nl802154.c +++ b/net/ieee802154/nl802154.c @@ -2133,6 +2133,9 @@ static int nl802154_del_llsec_seclevel(struct sk_buff *skb, struct wpan_dev *wpan_dev = dev->ieee802154_ptr; struct ieee802154_llsec_seclevel sl; + if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) + return -EOPNOTSUPP; + if (!info->attrs[NL802154_ATTR_SEC_LEVEL] || llsec_parse_seclevel(info->attrs[NL802154_ATTR_SEC_LEVEL], &sl) < 0)