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authorYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>2008-04-28 14:40:55 +0900
committerYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>2008-06-12 09:19:08 +0900
commit20c61fbd8deb2ada0ac3acecf6156a986dbfff2d (patch)
tree0be06a3736b60a6c3586e39dbc43031a2e3dace7 /net/ipv6
parent513fd370e6832f81ab717df4645f5ce679e44f14 (diff)
ipv6 mcast: Check address family of gf_group in getsockopt(MS_FILTER).
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Diffstat (limited to 'net/ipv6')
-rw-r--r--net/ipv6/ipv6_sockglue.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index 26b83e512a0..ce794d6acb7 100644
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -874,6 +874,8 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname,
return -EINVAL;
if (copy_from_user(&gsf, optval, GROUP_FILTER_SIZE(0)))
return -EFAULT;
+ if (gsf.gf_group.ss_family != AF_INET6)
+ return -EADDRNOTAVAIL;
lock_sock(sk);
err = ip6_mc_msfget(sk, &gsf,
(struct group_filter __user *)optval, optlen);