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-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 ce794d6..9a36971 100644
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -458,6 +458,8 @@ done:
case IPV6_MULTICAST_LOOP:
if (optlen < sizeof(int))
goto e_inval;
+ if (val != valbool)
+ goto e_inval;
np->mc_loop = valbool;
retv = 0;
break;
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