Commit 914d1164 authored by Ilpo Järvinen's avatar Ilpo Järvinen Committed by David S. Miller
Browse files

ipv6: IPV6_PKTINFO relied userspace providing correct length 



Signed-off-by: default avatarIlpo Järvinen <ilpo.jarvinen@helsinki.fi>
Reported-by: default avatarEric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 22604c86

net/ipv6/ipv6_sockglue.c

+1 −1
Original line number Diff line number Diff line
@@ -404,7 +404,7 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname, 
		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;

		}