From: David L Stevens <dlstevens@us.ibm.com>
Date: Thu, 15 Sep 2005 04:10:20 +0000 (-0700)
Subject: [IPV6]: Fix per-socket multicast filtering in sk_reuse case
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=40796c5e8f2a93008e9034b3110a7e7b1fa0fba0;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

[IPV6]: Fix per-socket multicast filtering in sk_reuse case

per-socket multicast filters were not being applied to all sockets
in the case of an exact-match bound address, due to an over-exuberant
"return" in the look-up code. Fix below. IPv4 does not have this problem.

Thanks to Hoerdt Mickael for reporting the bug.

Signed-off-by: David L Stevens <dlstevens@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 69b146843a20..2b9bf9bd177f 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -405,9 +405,8 @@ static struct sock *udp_v6_mcast_next(struct sock *sk,
 				continue;
 
 			if (!ipv6_addr_any(&np->rcv_saddr)) {
-				if (ipv6_addr_equal(&np->rcv_saddr, loc_addr))
-					return s;
-				continue;
+				if (!ipv6_addr_equal(&np->rcv_saddr, loc_addr))
+					continue;
 			}
 			if(!inet6_mc_check(s, loc_addr, rmt_addr))
 				continue;