From owner-svn-src-all@freebsd.org Tue Jul 23 18:31:08 2019 Return-Path: Delivered-To: svn-src-all@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 73D99AFF77; Tue, 23 Jul 2019 18:31:08 +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 4BCB46F120; Tue, 23 Jul 2019 18:31:08 +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 269FF1C21; Tue, 23 Jul 2019 18:31:08 +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 x6NIV82j018589; Tue, 23 Jul 2019 18:31:08 GMT (envelope-from tuexen@FreeBSD.org) Received: (from tuexen@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id x6NIV8bu018588; Tue, 23 Jul 2019 18:31:08 GMT (envelope-from tuexen@FreeBSD.org) Message-Id: <201907231831.x6NIV8bu018588@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: tuexen set sender to tuexen@FreeBSD.org using -f From: Michael Tuexen Date: Tue, 23 Jul 2019 18:31:08 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r350254 - head/sys/netinet X-SVN-Group: head X-SVN-Commit-Author: tuexen X-SVN-Commit-Paths: head/sys/netinet X-SVN-Commit-Revision: 350254 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 4BCB46F120 X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org X-Spamd-Result: default: False [-2.95 / 15.00]; local_wl_from(0.00)[FreeBSD.org]; NEURAL_HAM_MEDIUM(-1.00)[-0.999,0]; NEURAL_HAM_SHORT(-0.95)[-0.951,0]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; ASN(0.00)[asn:11403, ipnet:2610:1c1:1::/48, country:US] X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 23 Jul 2019 18:31:08 -0000 Author: tuexen Date: Tue Jul 23 18:31:07 2019 New Revision: 350254 URL: https://svnweb.freebsd.org/changeset/base/350254 Log: Don't hold a mutex while calling sbwait. This was found by syzkaller. Submitted by: rrs@ Reported by: markj@ MFC after: 1 week Modified: head/sys/netinet/sctp_output.c Modified: head/sys/netinet/sctp_output.c ============================================================================== --- head/sys/netinet/sctp_output.c Tue Jul 23 18:14:32 2019 (r350253) +++ head/sys/netinet/sctp_output.c Tue Jul 23 18:31:07 2019 (r350254) @@ -13409,10 +13409,10 @@ skip_preblock: stcb, SCTP_OUTPUT_FROM_USR_SEND, SCTP_SO_LOCKED); } - if (hold_tcblock == 1) { - SCTP_TCB_UNLOCK(stcb); - hold_tcblock = 0; - } + } + if (hold_tcblock == 1) { + SCTP_TCB_UNLOCK(stcb); + hold_tcblock = 0; } SOCKBUF_LOCK(&so->so_snd); /*-