Commit e363116b authored Jan 20, 2017 by Eric Dumazet Committed by David S. Miller Jan 20, 2017

ipv6: seg6_genl_set_tunsrc() must check kmemdup() return value



seg6_genl_get_tunsrc() and set_tun_src() do not handle tun_src being
possibly NULL, so we must check kmemdup() return value and abort if
it is NULL

Fixes: 915d7e5e ("ipv6: sr: add code base for control plane support of SR-IPv6")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: David Lebrun <david.lebrun@uclouvain.be>
Acked-by: David Lebrun <david.lebrun@uclouvain.be>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 2c561b2b

net/ipv6/seg6.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -176,6 +176,8 @@ static int seg6_genl_set_tunsrc(struct sk_buff skb, struct genl_info info)

		val = nla_data(info->attrs[SEG6_ATTR_DST]);
		t_new = kmemdup(val, sizeof(*val), GFP_KERNEL);
		if (!t_new)
		return -ENOMEM;

		mutex_lock(&sdata->lock);

Admin message