Date: Sun, 6 May 2018 14:19:51 +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: r333304 - head/sys/netinet Message-ID: <201805061419.w46EJpj3094778@repo.freebsd.org>
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Author: tuexen Date: Sun May 6 14:19:50 2018 New Revision: 333304 URL: https://svnweb.freebsd.org/changeset/base/333304 Log: Ensure we are not dereferencing a NULL pointer. This was found by Coverity scanning the usrsctp stack (CID 203808). MFC after: 3 days Modified: head/sys/netinet/sctp_indata.c Modified: head/sys/netinet/sctp_indata.c ============================================================================== --- head/sys/netinet/sctp_indata.c Sun May 6 13:59:56 2018 (r333303) +++ head/sys/netinet/sctp_indata.c Sun May 6 14:19:50 2018 (r333304) @@ -3621,7 +3621,9 @@ sctp_strike_gap_ack_chunks(struct sctp_tcb *stcb, stru SCTP_SO_NOT_LOCKED); } /* Make sure to flag we had a FR */ - tp1->whoTo->net_ack++; + if (tp1->whoTo != NULL) { + tp1->whoTo->net_ack++; + } continue; } }
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