From mboxrd@z Thu Jan 1 00:00:00 1970 From: alex.bluesman.smirnov@gmail.com 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> References: <1336656163-19382-1-git-send-email-y> Cc: netdev@vger.kernel.org, Alexander Smirnov To: davem@davemloft.net Return-path: 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) In-Reply-To: <1336656163-19382-1-git-send-email-y> Sender: netdev-owner@vger.kernel.org List-ID: 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); -- 1.7.2.3