Date: Sun, 28 Jun 2020 14:11:36 +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: r362722 - head/sys/netinet Message-ID: <202006281411.05SEBarK066033@repo.freebsd.org>
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Author: tuexen Date: Sun Jun 28 14:11:36 2020 New Revision: 362722 URL: https://svnweb.freebsd.org/changeset/base/362722 Log: Don't send packets containing ERROR chunks in response to unknown chunks when being in a state where the verification tag to be used is not known yet. MFC after: 1 week Modified: head/sys/netinet/sctp_input.c Modified: head/sys/netinet/sctp_input.c ============================================================================== --- head/sys/netinet/sctp_input.c Sun Jun 28 14:02:49 2020 (r362721) +++ head/sys/netinet/sctp_input.c Sun Jun 28 14:11:36 2020 (r362722) @@ -5178,7 +5178,11 @@ process_control_chunks: default: unknown_chunk: /* it's an unknown chunk! */ - if ((ch->chunk_type & 0x40) && (stcb != NULL)) { + if ((ch->chunk_type & 0x40) && + (stcb != NULL) && + (SCTP_GET_STATE(stcb) != SCTP_STATE_EMPTY) && + (SCTP_GET_STATE(stcb) != SCTP_STATE_INUSE) && + (SCTP_GET_STATE(stcb) != SCTP_STATE_COOKIE_WAIT)) { struct sctp_gen_error_cause *cause; int len;
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