Commit a34dcbfa authored by Dan Carpenter's avatar Dan Carpenter Committed by David S. Miller
Browse files

sctp: prevent info leak in sctp_make_heartbeat() 



The "hbinfo" struct has a 4 byte hole at the end so we have to zero it
out to prevent stack information from being disclosed.

Fixes: fe59379b ("sctp: do the basic send and recv for PLPMTUD probe")
Signed-off-by: default avatarDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 996af621

net/sctp/sm_make_chunk.c

+1 −1
Original line number Diff line number Diff line
@@ -1163,7 +1163,7 @@ struct sctp_chunk *sctp_make_heartbeat(const struct sctp_association *asoc, 
				       const struct sctp_transport *transport,

				       __u32 probe_size)

{

	struct sctp_sender_hb_info hbinfo;

	struct sctp_sender_hb_info hbinfo = {};

	struct sctp_chunk *retval;



	retval = sctp_make_control(asoc, SCTP_CID_HEARTBEAT, 0,