Kernel/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2025-01-11 07:30:16 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

bridge: fix br_multicast_query_expired() bug

Browse Source 
br_multicast_query_expired() querier argument is a pointer to
a struct bridge_mcast_querier :

struct bridge_mcast_querier {
        struct br_ip addr;
        struct net_bridge_port __rcu    *port;
};

Intent of the code was to clear port field, not the pointer to querier.

Fixes: 2cd4143192e8 ("bridge: memorize and export selected IGMP/MLD querier port")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Thadeu Lima de Souza Cascardo <cascardo@redhat.com>
Acked-by: Linus Lüssing <linus.luessing@c0d3.blue>
Cc: Linus Lüssing <linus.luessing@web.de>
Cc: Steinar H. Gunderson <sesse@samfundet.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet 2015-05-28 04:42:54 -07:00 committed by David S. Miller
parent 5aab0e8a45
commit 71d9f6149c
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
net/bridge/br_multicast.c
View File

@ -1822,7 +1822,7 @@ static void br_multicast_query_expired(struct net_bridge *br,
if (query->startup_sent < br->multicast_startup_query_count)
query->startup_sent++;
RCU_INIT_POINTER(querier, NULL);
RCU_INIT_POINTER(querier->port, NULL);
br_multicast_send_query(br, NULL, query);
spin_unlock(&br->multicast_lock);
}