From: Eric Dumazet <edumazet@google.com>
Date: Mon, 4 Nov 2019 15:57:55 +0000 (-0800)
Subject: dccp: do not leak jiffies on the wire
X-Git-Tag: v4.9.200~17
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=afd9a802e235b31ddd491fe1efba3df0d410d127;p=platform%2Fkernel%2Flinux-amlogic.git

dccp: do not leak jiffies on the wire

[ Upstream commit 3d1e5039f5f87a8731202ceca08764ee7cb010d3 ]

For some reason I missed the case of DCCP passive
flows in my previous patch.

Fixes: a904a0693c18 ("inet: stop leaking jiffies on the wire")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Thiemo Nagel <tnagel@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c
index 1d6d3aaa8c3d..bdf90838b83f 100644
--- a/net/dccp/ipv4.c
+++ b/net/dccp/ipv4.c
@@ -417,7 +417,7 @@ struct sock *dccp_v4_request_recv_sock(const struct sock *sk,
 	RCU_INIT_POINTER(newinet->inet_opt, rcu_dereference(ireq->ireq_opt));
 	newinet->mc_index  = inet_iif(skb);
 	newinet->mc_ttl	   = ip_hdr(skb)->ttl;
-	newinet->inet_id   = jiffies;
+	newinet->inet_id   = prandom_u32();
 
 	if (dst == NULL && (dst = inet_csk_route_child_sock(sk, newsk, req)) == NULL)
 		goto put_and_exit;