diff options
| author | Hannes Frederic Sowa <hannes@stressinduktion.org> | 2015-10-08 18:19:53 +0200 |
|---|---|---|
| committer | Sasha Levin <sasha.levin@oracle.com> | 2016-03-14 17:03:05 -0400 |
| commit | b014bae072a1dad1767c5c6e7e7b480165685c3e (patch) | |
| tree | bf23bfb5cfb2fb6b84556b5791370b46938456ca | |
| parent | b5c41530ef442dba667c4d964c722e8157f7da72 (diff) | |
ipv6: drop frames with attached skb->sk in forwarding
[ Upstream commit 9ef2e965e55481a52d6d91ce61977a27836268d3 ]
This is a clone of commit 2ab957492d13b ("ip_forward: Drop frames with
attached skb->sk") for ipv6.
This commit has exactly the same reasons as the above mentioned commit,
namely to prevent panics during netfilter reload or a misconfigured stack.
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
| -rw-r--r-- | net/ipv6/ip6_output.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c index 36b9ac48b8fb..06bf4010d3ed 100644 --- a/net/ipv6/ip6_output.c +++ b/net/ipv6/ip6_output.c @@ -376,6 +376,9 @@ int ip6_forward(struct sk_buff *skb) if (skb->pkt_type != PACKET_HOST) goto drop; + if (unlikely(skb->sk)) + goto drop; + if (skb_warn_if_lro(skb)) goto drop; |