commit
b8670c09f37bdf2847cc44f36511a53afc6161fd upstream.
The stack object â
\80\9cinfoâ
\80\9d has a total size of 12 bytes. Its last byte
is padding which is not initialized and leaked via â
\80\9cput_cmsgâ
\80\9d.
Signed-off-by: Kangjie Lu <kjlu@gatech.edu>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Willy Tarreau <w@1wt.eu>
if (llc->cmsg_flags & LLC_CMSG_PKTINFO) {
struct llc_pktinfo info;
+ memset(&info, 0, sizeof(info));
info.lpi_ifindex = llc_sk(skb->sk)->dev->ifindex;
llc_pdu_decode_dsap(skb, &info.lpi_sap);
llc_pdu_decode_da(skb, info.lpi_mac);