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ipv6: IPV6_PKTINFO relied userspace providing correct length 

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Reported-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ilpo Järvinen 2009-01-04 17:27:31 -08:00 committed by David S. Miller
parent 22604c8668
commit 914d11647b
1 changed files with 1 additions and 1 deletions
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2
net/ipv6/ipv6_sockglue.c
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@ -404,7 +404,7 @@ sticky_done:
else if (optlen < sizeof(struct in6_pktinfo) || optval == NULL)
goto e_inval;
if (copy_from_user(&pkt, optval, optlen)) {
if (copy_from_user(&pkt, optval, sizeof(struct in6_pktinfo))) {
retv = -EFAULT;
break;
}