Author: tuexen
Date: Thu Nov 7 17:08:09 2013
New Revision: 257803
URL: http://svnweb.freebsd.org/changeset/base/257803
Log:
Make sure that we don't try to build an ASCONF-ACK chunk
larger than what fits in the the mbuf cluster.
This issue was reported by Andrew Galante.
MFC after: 3 days
Modified:
head/sys/netinet/sctp_asconf.c
Modified: head/sys/netinet/sctp_asconf.c
==============================================================================
--- head/sys/netinet/sctp_asconf.c Thu Nov 7 16:58:09 2013
(r257802)
+++ head/sys/netinet/sctp_asconf.c Thu Nov 7 17:08:09 2013
(r257803)
@@ -2616,7 +2616,8 @@ sctp_compose_asconf(struct sctp_tcb *stc
/* get the parameter length */
p_length = SCTP_SIZE32(aa->ap.aph.ph.param_length);
/* will it fit in current chunk? */
- if (SCTP_BUF_LEN(m_asconf) + p_length >
stcb->asoc.smallest_mtu) {
+ if ((SCTP_BUF_LEN(m_asconf) + p_length >
stcb->asoc.smallest_mtu) ||
+ (SCTP_BUF_LEN(m_asconf) + p_length > MCLBYTES)) {
/* won't fit, so we're done with this chunk */
break;
}
_______________________________________________
svn-src-head@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/svn-src-head
To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
