From patchwork Thu May 10 13:22:42 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: alex.bluesman.smirnov@gmail.com X-Patchwork-Id: 158288 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 4E6F2B6FA0 for ; Thu, 10 May 2012 23:23:58 +1000 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758274Ab2EJNXy (ORCPT ); Thu, 10 May 2012 09:23:54 -0400 Received: from mail-bk0-f46.google.com ([209.85.214.46]:48355 "EHLO mail-bk0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755716Ab2EJNXv (ORCPT ); Thu, 10 May 2012 09:23:51 -0400 Received: by bkcji2 with SMTP id ji2so1280937bkc.19 for ; Thu, 10 May 2012 06:23:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:date:message-id:x-mailer:in-reply-to:references; bh=L3IyLndC+QGLSBtmC1OTVM+isjdQfDzi4IDiXd3pvY0=; b=oX3G7UWOovofY/8mQuZ1FTo4jr4nVpDko6SPX+O9bKgbJbXLwnVT5uT1bEYHghp1U/ /qYi87V3K5CL2JWIQhYAbbkA5j4cs/Pc+hX5xeRIPbt7eGfhYfoN71ttwG3StqmSxIK0 1QtEflP+MOKcXFt065KSYLHZ074Sdkz6SGyCKozRSHPNREdMMgu/m5p8PgYSBj7q2M1q VpEfgRieR5/nxWZpmk4E8qiMoelGt2vVQPVE1JjkFJ4cdZHfAB3+kd3p+6VIkcsbEn6Z YT2o3LBa2Q7hY573rOaerfwM1Z+7Yglt0OGYPCicy7gotp7bo+6v1jeIXoUtoOHRl+0g w9bA== Received: by 10.204.156.137 with SMTP id x9mr2225852bkw.135.1336656230729; Thu, 10 May 2012 06:23:50 -0700 (PDT) Received: from localhost.localdomain ([91.213.169.4]) by mx.google.com with ESMTPS id h18sm12005214bkh.8.2012.05.10.06.23.49 (version=TLSv1/SSLv3 cipher=OTHER); Thu, 10 May 2012 06:23:50 -0700 (PDT) From: alex.bluesman.smirnov@gmail.com To: davem@davemloft.net Cc: netdev@vger.kernel.org, Alexander Smirnov Subject: [PATCH 1/2 net] 6lowpan: add missing pskb_may_pull() check Date: Thu, 10 May 2012 17:22:42 +0400 Message-Id: <4fabc166.9208cc0a.4de8.ffff9211@mx.google.com> X-Mailer: git-send-email 1.7.2.3 In-Reply-To: <1336656163-19382-1-git-send-email-y> References: <1336656163-19382-1-git-send-email-y> Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Alexander Smirnov Add pskb_may_pull() call when fetching u8 from skb. Signed-off-by: Alexander Smirnov --- net/ieee802154/6lowpan.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/net/ieee802154/6lowpan.c b/net/ieee802154/6lowpan.c index 32eb417..0ab3efe 100644 --- a/net/ieee802154/6lowpan.c +++ b/net/ieee802154/6lowpan.c @@ -295,6 +295,8 @@ static u8 lowpan_fetch_skb_u8(struct sk_buff *skb) { u8 ret; + BUG_ON(!pskb_may_pull(skb, 1)); + ret = skb->data[0]; skb_pull(skb, 1);