svn commit: r353398 - stable/12/sys/netinet
Michael Tuexen
tuexen at FreeBSD.org
Thu Oct 10 14:49:50 UTC 2019
Author: tuexen
Date: Thu Oct 10 14:49:49 2019
New Revision: 353398
URL: https://svnweb.freebsd.org/changeset/base/353398
Log:
MFC r353119:
Fix the adding of padding to COOKIE-ECHO chunks.
Thanks to Mark Wodrich who found this issue while fuzz testing the
usrsctp stack and reported the issue in
https://github.com/sctplab/usrsctp/issues/382
Modified:
stable/12/sys/netinet/sctp_output.c
Directory Properties:
stable/12/ (props changed)
Modified: stable/12/sys/netinet/sctp_output.c
==============================================================================
--- stable/12/sys/netinet/sctp_output.c Thu Oct 10 14:48:48 2019 (r353397)
+++ stable/12/sys/netinet/sctp_output.c Thu Oct 10 14:49:49 2019 (r353398)
@@ -9059,8 +9059,7 @@ sctp_send_cookie_echo(struct mbuf *m,
pad = 4 - pad;
}
if (pad > 0) {
- cookie = sctp_pad_lastmbuf(cookie, pad, NULL);
- if (cookie == NULL) {
+ if (sctp_pad_lastmbuf(cookie, pad, NULL) == NULL) {
return (-8);
}
}
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