From owner-svn-src-head@freebsd.org Sun May 3 16:14:56 2020 Return-Path: Delivered-To: svn-src-head@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 1A67D2E1BA8; Sun, 3 May 2020 16:14:56 +0000 (UTC) (envelope-from mav@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 49FWKW7175z3P7S; Sun, 3 May 2020 16:14:55 +0000 (UTC) (envelope-from mav@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 EBE8FDBE4; Sun, 3 May 2020 16:14:55 +0000 (UTC) (envelope-from mav@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id 043GEtWu095698; Sun, 3 May 2020 16:14:55 GMT (envelope-from mav@FreeBSD.org) Received: (from mav@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id 043GEtmP095697; Sun, 3 May 2020 16:14:55 GMT (envelope-from mav@FreeBSD.org) Message-Id: <202005031614.043GEtmP095697@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: mav set sender to mav@FreeBSD.org using -f From: Alexander Motin Date: Sun, 3 May 2020 16:14:55 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r360610 - head/sys/cam/ctl X-SVN-Group: head X-SVN-Commit-Author: mav X-SVN-Commit-Paths: head/sys/cam/ctl X-SVN-Commit-Revision: 360610 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 03 May 2020 16:14:56 -0000 Author: mav Date: Sun May 3 16:14:55 2020 New Revision: 360610 URL: https://svnweb.freebsd.org/changeset/base/360610 Log: Add session locking in cfiscsi_ioctl_handoff(). While there, remove ifdef around cs_target check in cfiscsi_ioctl_list(). I am not sure why this ifdef was added, but without this check code will crash below on NULL dereference. Submitted by: Aleksandr Fedorov MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D24587 Modified: head/sys/cam/ctl/ctl_frontend_iscsi.c Modified: head/sys/cam/ctl/ctl_frontend_iscsi.c ============================================================================== --- head/sys/cam/ctl/ctl_frontend_iscsi.c Sun May 3 16:09:35 2020 (r360609) +++ head/sys/cam/ctl/ctl_frontend_iscsi.c Sun May 3 16:14:55 2020 (r360610) @@ -1582,8 +1582,10 @@ cfiscsi_ioctl_handoff(struct ctl_iscsi *ci) mtx_lock(&softc->lock); if (ct->ct_online == 0) { mtx_unlock(&softc->lock); + CFISCSI_SESSION_LOCK(cs); cs->cs_handoff_in_progress = false; cfiscsi_session_terminate(cs); + CFISCSI_SESSION_UNLOCK(cs); cfiscsi_target_release(ct); ci->status = CTL_ISCSI_ERROR; snprintf(ci->error_str, sizeof(ci->error_str), @@ -1629,8 +1631,10 @@ restart: #endif error = icl_conn_handoff(cs->cs_conn, cihp->socket); if (error != 0) { + CFISCSI_SESSION_LOCK(cs); cs->cs_handoff_in_progress = false; cfiscsi_session_terminate(cs); + CFISCSI_SESSION_UNLOCK(cs); ci->status = CTL_ISCSI_ERROR; snprintf(ci->error_str, sizeof(ci->error_str), "%s: icl_conn_handoff failed with error %d", @@ -1692,10 +1696,8 @@ cfiscsi_ioctl_list(struct ctl_iscsi *ci) sbuf_printf(sb, "\n"); mtx_lock(&softc->lock); TAILQ_FOREACH(cs, &softc->sessions, cs_next) { -#ifdef ICL_KERNEL_PROXY if (cs->cs_target == NULL) continue; -#endif error = sbuf_printf(sb, "" "%s" "%s"