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authorEric Dumazet <eric.dumazet@gmail.com>2010-07-19 03:24:14 +0000
committerDavid S. Miller <davem@davemloft.net>2010-07-19 09:34:31 -0700
commitdb5dda905759c931ceb8f3f2fcfd7719009acc98 (patch)
treeb02a3f5e48ee9dfec6c04ea5fcacb69075ce2998 /drivers/net/bonding/bond_ipv6.c
parentc26875e2e1a07137f6e7a621fa802b03c00535b6 (diff)
downloadlinux-db5dda905759c931ceb8f3f2fcfd7719009acc98.tar.gz
bonding: fix bond_inet6addr_event()
After commit ad1afb0039391 (vlan_dev: VLAN 0 should be treated as "no vlan tag" (802.1p packet)), bond_inet6addr_event() might be called with a NULL bond->vlgrp pointer, and a non empty bond->vlan_list. vlan_group_get_device() is dereferencing a NULL pointer. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/bonding/bond_ipv6.c')
-rw-r--r--drivers/net/bonding/bond_ipv6.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/bonding/bond_ipv6.c b/drivers/net/bonding/bond_ipv6.c
index 969ffed86b9f..121b073a6c3f 100644
--- a/drivers/net/bonding/bond_ipv6.c
+++ b/drivers/net/bonding/bond_ipv6.c
@@ -178,6 +178,8 @@ static int bond_inet6addr_event(struct notifier_block *this,
}
list_for_each_entry(vlan, &bond->vlan_list, vlan_list) {
+ if (!bond->vlgrp)
+ continue;
vlan_dev = vlan_group_get_device(bond->vlgrp,
vlan->vlan_id);
if (vlan_dev == event_dev) {