Date: Mon, 24 Aug 2020 08:35:13 +0000 (UTC) From: Michael Tuexen <tuexen@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-12@freebsd.org Subject: svn commit: r364626 - stable/12/sys/netinet Message-ID: <202008240835.07O8ZDcb077471@repo.freebsd.org>
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Author: tuexen Date: Mon Aug 24 08:35:13 2020 New Revision: 364626 URL: https://svnweb.freebsd.org/changeset/base/364626 Log: MFC r362722: 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. Modified: stable/12/sys/netinet/sctp_input.c Directory Properties: stable/12/ (props changed) Modified: stable/12/sys/netinet/sctp_input.c ============================================================================== --- stable/12/sys/netinet/sctp_input.c Mon Aug 24 08:33:32 2020 (r364625) +++ stable/12/sys/netinet/sctp_input.c Mon Aug 24 08:35:13 2020 (r364626) @@ -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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