Commit 681e0849 authored Nov 22, 2019 by Navid Emamdoost Committed by Greg Kroah-Hartman Dec 05, 2019

sctp: Fix memory leak in sctp_sf_do_5_2_4_dupcook



[ Upstream commit b6631c6031c746ed004c4221ec0616d7a520f441 ]

In the implementation of sctp_sf_do_5_2_4_dupcook() the allocated
new_asoc is leaked if security_sctp_assoc_request() fails. Release it
via sctp_association_free().

Fixes: 2277c7cd ("sctp: Add LSM hooks")
Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent ae0ab395

net/sctp/sm_statefuns.c

+3 −1

Original line number	Diff line number	Diff line
		@@ -2175,8 +2175,10 @@ enum sctp_disposition sctp_sf_do_5_2_4_dupcook(

		/* Update socket peer label if first association. */
		if (security_sctp_assoc_request((struct sctp_endpoint *)ep,
		chunk->skb))
		chunk->skb)) {
		sctp_association_free(new_asoc);
		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
		}

		/* Set temp so that it won't be added into hashtable */
		new_asoc->temp = 1;