ipv4: fix ip_rt_update_pmtu()
authorEric Dumazet <eric.dumazet@gmail.com>
Wed, 23 Mar 2011 19:18:15 +0000 (12:18 -0700)
committerDavid S. Miller <davem@davemloft.net>
Wed, 23 Mar 2011 19:18:15 +0000 (12:18 -0700)
commit 2c8cec5c10bc (Cache learned PMTU information in inetpeer) added
an extra inet_putpeer() call in ip_rt_update_pmtu().

This results in various problems, since we can free one inetpeer, while
it is still in use.

Ref: http://www.spinics.net/lists/netdev/msg159121.html

Reported-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/ipv4/route.c

index 870b5182ddd8a88c71cd7b4399779a850372cdfa..34921b0d3f8e7e22313056f51ce53e9f488b2e63 100644 (file)
@@ -1593,8 +1593,6 @@ static void ip_rt_update_pmtu(struct dst_entry *dst, u32 mtu)
                        rt->rt_peer_genid = rt_peer_genid();
                }
                check_peer_pmtu(dst, peer);
-
-               inet_putpeer(peer);
        }
 }