From owner-svn-src-stable@freebsd.org Wed May 6 22:02:01 2020 Return-Path: Delivered-To: svn-src-stable@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id EEBDE2E0A92; Wed, 6 May 2020 22:02:01 +0000 (UTC) (envelope-from tuexen@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 49HVtd685Jz4FgT; Wed, 6 May 2020 22:02:01 +0000 (UTC) (envelope-from tuexen@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id CE2ED6633; Wed, 6 May 2020 22:02:01 +0000 (UTC) (envelope-from tuexen@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id 046M216M025747; Wed, 6 May 2020 22:02:01 GMT (envelope-from tuexen@FreeBSD.org) Received: (from tuexen@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id 046M21oa025746; Wed, 6 May 2020 22:02:01 GMT (envelope-from tuexen@FreeBSD.org) Message-Id: <202005062202.046M21oa025746@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: tuexen set sender to tuexen@FreeBSD.org using -f From: Michael Tuexen Date: Wed, 6 May 2020 22:02:01 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-11@freebsd.org Subject: svn commit: r360706 - stable/11/sys/netinet X-SVN-Group: stable-11 X-SVN-Commit-Author: tuexen X-SVN-Commit-Paths: stable/11/sys/netinet X-SVN-Commit-Revision: 360706 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-stable@freebsd.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: SVN commit messages for all the -stable branches of the src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 06 May 2020 22:02:02 -0000 Author: tuexen Date: Wed May 6 22:02:01 2020 New Revision: 360706 URL: https://svnweb.freebsd.org/changeset/base/360706 Log: MFC r349998: Improve SCTP socket state handling Fix socket state handling when freeing an SCTP endpoint. This issue was found by runing syzkaller. Modified: stable/11/sys/netinet/sctp_pcb.c Directory Properties: stable/11/ (props changed) Modified: stable/11/sys/netinet/sctp_pcb.c ============================================================================== --- stable/11/sys/netinet/sctp_pcb.c Wed May 6 21:59:58 2020 (r360705) +++ stable/11/sys/netinet/sctp_pcb.c Wed May 6 22:02:01 2020 (r360706) @@ -4911,12 +4911,11 @@ sctp_free_assoc(struct sctp_inpcb *inp, struct sctp_tc inp->sctp_flags |= SCTP_PCB_FLAGS_WAS_CONNECTED; if (so) { SOCK_LOCK(so); - if (so->so_rcv.sb_cc == 0) { - so->so_state &= ~(SS_ISCONNECTING | - SS_ISDISCONNECTING | - SS_ISCONFIRMING | - SS_ISCONNECTED); - } + so->so_state &= ~(SS_ISCONNECTING | + SS_ISDISCONNECTING | + SS_ISCONFIRMING | + SS_ISCONNECTED); + so->so_state |= SS_ISDISCONNECTED; socantrcvmore_locked(so); socantsendmore(so); sctp_sowwakeup(inp, so);