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Date:      Sat, 6 Aug 2016 15:29:46 +0000 (UTC)
From:      Michael Tuexen <tuexen@FreeBSD.org>
To:        src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org
Subject:   svn commit: r303798 - head/sys/netinet
Message-ID:  <201608061529.u76FTkhZ056479@repo.freebsd.org>

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Author: tuexen
Date: Sat Aug  6 15:29:46 2016
New Revision: 303798
URL: https://svnweb.freebsd.org/changeset/base/303798

Log:
  Don't modify a structure without holding a reference count on it.
  
  MFC after:	3 days

Modified:
  head/sys/netinet/sctputil.c

Modified: head/sys/netinet/sctputil.c
==============================================================================
--- head/sys/netinet/sctputil.c	Sat Aug  6 15:10:14 2016	(r303797)
+++ head/sys/netinet/sctputil.c	Sat Aug  6 15:29:46 2016	(r303798)
@@ -6098,9 +6098,9 @@ out:
 			goto stage_left;
 #endif
 		}
-		atomic_add_int(&stcb->asoc.refcnt, -1);
 		/* Save the value back for next time */
 		stcb->freed_by_sorcv_sincelast = freed_so_far;
+		atomic_add_int(&stcb->asoc.refcnt, -1);
 	}
 	if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_RECV_RWND_LOGGING_ENABLE) {
 		if (stcb) {



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