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| author | Eric Dumazet <edumazet@google.com> | 2017-01-20 07:57:42 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-01-20 11:07:48 -0500 |
| commit | e363116b90906f326c9cde5473b4b9a99ba476df (patch) | |
| tree | 28e02e536cd1fe1982cae0dfd25c9b6604713c0c /net/ipv6 | |
| parent | 2c561b2b728ca4013e76d6439bde2c137503745e (diff) | |
| download | linux-e363116b90906f326c9cde5473b4b9a99ba476df.tar.bz2 | |
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: 915d7e5e5930 ("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>
Diffstat (limited to 'net/ipv6')
| -rw-r--r-- | net/ipv6/seg6.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/ipv6/seg6.c b/net/ipv6/seg6.c index b172d85c650a..a855eb325b03 100644 --- a/net/ipv6/seg6.c +++ b/net/ipv6/seg6.c @@ -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); |