svn commit: r324954 - head/sys/netinet
Michael Tuexen
tuexen at FreeBSD.org
Tue Oct 24 14:28:58 UTC 2017
Author: tuexen
Date: Tue Oct 24 14:28:56 2017
New Revision: 324954
URL: https://svnweb.freebsd.org/changeset/base/324954
Log:
Fix a locking issue found by running AFL on the userland stack.
Thanks to Felix Weinrank for reporting the issue.
MFC after: 3 days
Modified:
head/sys/netinet/sctp_input.c
Modified: head/sys/netinet/sctp_input.c
==============================================================================
--- head/sys/netinet/sctp_input.c Tue Oct 24 12:56:08 2017 (r324953)
+++ head/sys/netinet/sctp_input.c Tue Oct 24 14:28:56 2017 (r324954)
@@ -4863,9 +4863,6 @@ process_control_chunks:
if ((stcb != NULL) && (stcb->asoc.total_output_queue_size)) {
;
} else {
- if (stcb != NULL) {
- SCTP_TCB_UNLOCK(stcb);
- }
*offset = length;
if (stcb != NULL) {
#if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
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