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ipv6 mcast: Check address family of gf_group in getsockopt(MS_FILTER).

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Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
This commit is contained in:
YOSHIFUJI Hideaki 2008-04-28 14:40:55 +09:00
parent 513fd370e6
commit 20c61fbd8d
1 changed files with 2 additions and 0 deletions
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2
net/ipv6/ipv6_sockglue.c
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@ -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);