Merge: net/sctp: Prevent autoclose integer overflow in sctp_association_init()

MR: https://gitlab.com/redhat/centos-stream/src/kernel/centos-stream-10/-/merge_requests/274

JIRA: https://issues.redhat.com/browse/RHEL-75624
CVE: CVE-2024-57938
Tested: compile only

Signed-off-by: Xin Long <lxin@redhat.com>

Approved-by: Marcelo Ricardo Leitner <mleitner@redhat.com>
Approved-by: Davide Caratti <dcaratti@redhat.com>
Approved-by: CKI KWF Bot <cki-ci-bot+kwf-gitlab-com@redhat.com>

Merged-by: Jan Stancek <jstancek@redhat.com>

Author: jstancek

net/sctp/associola.c

@@ -137,7 +137,8 @@ static struct sctp_association *sctp_association_init(
 		= 5 * asoc->rto_max;
 
 	asoc->timeouts[SCTP_EVENT_TIMEOUT_SACK] = asoc->sackdelay;
-	asoc->timeouts[SCTP_EVENT_TIMEOUT_AUTOCLOSE] = sp->autoclose * HZ;
+	asoc->timeouts[SCTP_EVENT_TIMEOUT_AUTOCLOSE] =
+		(unsigned long)sp->autoclose * HZ;
 
 	/* Initializes the timers */
 	for (i = SCTP_EVENT_TIMEOUT_NONE; i < SCTP_NUM_TIMEOUT_TYPES; ++i)