rocker: Add proper validation of Netlink attributes
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>
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@ -3712,6 +3712,9 @@ static int rocker_port_bridge_setlink(struct net_device *dev,
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if (afspec) {
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attr = nla_find_nested(afspec, IFLA_BRIDGE_MODE);
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if (attr) {
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if (nla_len(attr) < sizeof(mode))
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return -EINVAL;
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mode = nla_get_u16(attr);
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if (mode != BRIDGE_MODE_SWDEV)
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return -EINVAL;
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@ -3721,6 +3724,9 @@ static int rocker_port_bridge_setlink(struct net_device *dev,
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if (protinfo) {
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attr = nla_find_nested(protinfo, IFLA_BRPORT_LEARNING);
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if (attr) {
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if (nla_len(attr) < sizeof(u8))
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return -EINVAL;
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if (nla_get_u8(attr))
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rocker_port->brport_flags |= BR_LEARNING;
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else
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@ -3731,6 +3737,9 @@ static int rocker_port_bridge_setlink(struct net_device *dev,
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}
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attr = nla_find_nested(protinfo, IFLA_BRPORT_LEARNING_SYNC);
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if (attr) {
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if (nla_len(attr) < sizeof(u8))
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return -EINVAL;
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if (nla_get_u8(attr))
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rocker_port->brport_flags |= BR_LEARNING_SYNC;
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else
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