From patchwork Fri Jul 22 17:42:36 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [lucid/fsl-imx51, CVE, 07/12] llc: use limited socket backlog CVE-2010-4251 Date: Fri, 22 Jul 2011 07:42:36 -0000 From: Andy Whitcroft X-Patchwork-Id: 106354 Message-Id: <1311356561-11988-8-git-send-email-apw@canonical.com> To: kernel-team@lists.ubuntu.com From: Zhu Yi BugLink: http://bugs.launchpad.net/bugs/807462 Make llc adapt to the limited socket backlog change. Cc: Arnaldo Carvalho de Melo Signed-off-by: Zhu Yi Acked-by: Eric Dumazet Acked-by: Arnaldo Carvalho de Melo Signed-off-by: David S. Miller (cherry picked from commit 79545b681961d7001c1f4c3eb9ffb87bed4485db) Signed-off-by: Paolo Pisati Signed-off-by: Tim Gardner Signed-off-by: Andy Whitcroft --- net/llc/llc_conn.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/net/llc/llc_conn.c b/net/llc/llc_conn.c index c6bab39..8f97546 100644 --- a/net/llc/llc_conn.c +++ b/net/llc/llc_conn.c @@ -756,7 +756,8 @@ void llc_conn_handler(struct llc_sap *sap, struct sk_buff *skb) else { dprintk("%s: adding to backlog...\n", __func__); llc_set_backlog_type(skb, LLC_PACKET); - sk_add_backlog(sk, skb); + if (sk_add_backlog_limited(sk, skb)) + goto drop_unlock; } out: bh_unlock_sock(sk);