Author: tuexen Date: Fri Sep 20 08:20:20 2019 New Revision: 352550 URL: https://svnweb.freebsd.org/changeset/base/352550
Log: Fix the handling of invalid parameters in ASCONF chunks. Thanks to Mark Wodrich from Google for reproting the issue in https://github.com/sctplab/usrsctp/issues/376 for the userland stack. MFC after: 3 days Modified: head/sys/netinet/sctp_asconf.c Modified: head/sys/netinet/sctp_asconf.c ============================================================================== --- head/sys/netinet/sctp_asconf.c Fri Sep 20 07:24:18 2019 (r352549) +++ head/sys/netinet/sctp_asconf.c Fri Sep 20 08:20:20 2019 (r352550) @@ -703,6 +703,7 @@ sctp_handle_asconf(struct mbuf *m, unsigned int offset if (param_length <= sizeof(struct sctp_paramhdr)) { SCTPDBG(SCTP_DEBUG_ASCONF1, "handle_asconf: param length (%u) too short\n", param_length); sctp_m_freem(m_ack); + return; } /* get the entire parameter */ aph = (struct sctp_asconf_paramhdr *)sctp_m_getptr(m, offset, param_length, aparam_buf); _______________________________________________ svn-src-all@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
