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rocker: Add proper validation of Netlink attributes

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Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: Scott Feldman <sfeldma@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Thomas Graf 2014-11-28 14:34:31 +01:00 committed by David S. Miller
parent 5111f80cbc
commit e75605822e
1 changed files with 9 additions and 0 deletions
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9
drivers/net/ethernet/rocker/rocker.c
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@ -3712,6 +3712,9 @@ static int rocker_port_bridge_setlink(struct net_device *dev,
if (afspec) {
attr = nla_find_nested(afspec, IFLA_BRIDGE_MODE);
if (attr) {
if (nla_len(attr) < sizeof(mode))
return -EINVAL;
mode = nla_get_u16(attr);
if (mode != BRIDGE_MODE_SWDEV)
return -EINVAL;
@ -3721,6 +3724,9 @@ static int rocker_port_bridge_setlink(struct net_device *dev,
if (protinfo) {
attr = nla_find_nested(protinfo, IFLA_BRPORT_LEARNING);
if (attr) {
if (nla_len(attr) < sizeof(u8))
return -EINVAL;
if (nla_get_u8(attr))
rocker_port->brport_flags |= BR_LEARNING;
else
@ -3731,6 +3737,9 @@ static int rocker_port_bridge_setlink(struct net_device *dev,
}
attr = nla_find_nested(protinfo, IFLA_BRPORT_LEARNING_SYNC);
if (attr) {
if (nla_len(attr) < sizeof(u8))
return -EINVAL;
if (nla_get_u8(attr))
rocker_port->brport_flags |= BR_LEARNING_SYNC;
else