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Old 07-22-2011, 05:42 PM
Andy Whitcroft
 
Default x25: use limited socket backlog CVE-2010-4251

From: Zhu Yi <yi.zhu@intel.com>

BugLink: http://bugs.launchpad.net/bugs/807462

Make x25 adapt to the limited socket backlog change.

Cc: Andrew Hendry <andrew.hendry@gmail.com>
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
(cherry picked from commit 2499849ee8f513e795b9f2c19a42d6356e4943a4)

Signed-off-by: Paolo Pisati <paolo.pisati@canonical.com>
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
Signed-off-by: Andy Whitcroft <apw@canonical.com>
---
net/x25/x25_dev.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/net/x25/x25_dev.c b/net/x25/x25_dev.c
index 3e1efe5..a9da0dc 100644
--- a/net/x25/x25_dev.c
+++ b/net/x25/x25_dev.c
@@ -53,7 +53,7 @@ static int x25_receive_data(struct sk_buff *skb, struct x25_neigh *nb)
if (!sock_owned_by_user(sk)) {
queued = x25_process_rx_frame(sk, skb);
} else {
- sk_add_backlog(sk, skb);
+ queued = !sk_add_backlog_limited(sk, skb);
}
bh_unlock_sock(sk);
sock_put(sk);
--
1.7.4.1


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