Re: [Patch net-next] ipv6: fix a potential NULL deref

On Mon, 2012-10-29 at 07:10 +0100, Eric Dumazet wrote:

quoted

-		dst_release(&rt->dst);
+		if (rt)
+			dst_release(&rt->dst);
 	}
 

dst_release() is like kfree(), it accepts a NULL argument.

'rt->dst' already dereferences 'rt', no matter dst_release() accepts
NULL or not.