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ipv6 mcast: Check address family of gf_group in getsockopt(MS_FILTER).
author
YOSHIFUJI Hideaki
<yoshfuji@linux-ipv6.org>
Mon, 28 Apr 2008 05:40:55 +0000
(14:40 +0900)
committer
YOSHIFUJI Hideaki
<yoshfuji@linux-ipv6.org>
Thu, 12 Jun 2008 00:19:08 +0000
(09:19 +0900)
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
net/ipv6/ipv6_sockglue.c
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diff --git
a/net/ipv6/ipv6_sockglue.c
b/net/ipv6/ipv6_sockglue.c
index
26b83e5
..
ce794d6
100644
(file)
--- 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);