From owner-svn-src-all@freebsd.org Tue Nov 8 21:17:26 2016 Return-Path: Delivered-To: svn-src-all@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 79119C37481; Tue, 8 Nov 2016 21:17:26 +0000 (UTC) (envelope-from cem@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 mx1.freebsd.org (Postfix) with ESMTPS id 2BFD71DDE; Tue, 8 Nov 2016 21:17:26 +0000 (UTC) (envelope-from cem@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id uA8LHPOu004064; Tue, 8 Nov 2016 21:17:25 GMT (envelope-from cem@FreeBSD.org) Received: (from cem@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id uA8LHPju004062; Tue, 8 Nov 2016 21:17:25 GMT (envelope-from cem@FreeBSD.org) Message-Id: <201611082117.uA8LHPju004062@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: cem set sender to cem@FreeBSD.org using -f From: "Conrad E. Meyer" Date: Tue, 8 Nov 2016 21:17:25 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r308451 - in head/sys/cam: . scsi X-SVN-Group: head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.23 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, 08 Nov 2016 21:17:26 -0000 Author: cem Date: Tue Nov 8 21:17:24 2016 New Revision: 308451 URL: https://svnweb.freebsd.org/changeset/base/308451 Log: cam: Zero bio pointer in user-supplied SCSI CCBs The BUF_TRACKING bio pointer only makes sense for kernel consumers of CCBs. PR: 214250 Reported by: trasz@ Reviewed by: imp@, markj@ Sponsored by: Dell EMC Isilon Differential Revision: https://reviews.freebsd.org/D8477 Modified: head/sys/cam/cam_xpt.c head/sys/cam/scsi/scsi_pass.c Modified: head/sys/cam/cam_xpt.c ============================================================================== --- head/sys/cam/cam_xpt.c Tue Nov 8 21:15:50 2016 (r308450) +++ head/sys/cam/cam_xpt.c Tue Nov 8 21:17:24 2016 (r308451) @@ -414,6 +414,10 @@ xptdoioctl(struct cdev *dev, u_long cmd, struct cam_eb *bus; inccb = (union ccb *)addr; +#if defined(BUF_TRACKING) || defined(FULL_BUF_TRACKING) + if (inccb->ccb_h.func_code == XPT_SCSI_IO) + inccb->csio.bio = NULL; +#endif bus = xpt_find_bus(inccb->ccb_h.path_id); if (bus == NULL) @@ -593,6 +597,10 @@ xptdoioctl(struct cdev *dev, u_long cmd, unit = ccb->cgdl.unit_number; name = ccb->cgdl.periph_name; base_periph_found = 0; +#if defined(BUF_TRACKING) || defined(FULL_BUF_TRACKING) + if (ccb->ccb_h.func_code == XPT_SCSI_IO) + ccb->csio.bio = NULL; +#endif /* * Sanity check -- make sure we don't get a null peripheral Modified: head/sys/cam/scsi/scsi_pass.c ============================================================================== --- head/sys/cam/scsi/scsi_pass.c Tue Nov 8 21:15:50 2016 (r308450) +++ head/sys/cam/scsi/scsi_pass.c Tue Nov 8 21:17:24 2016 (r308451) @@ -1777,6 +1777,10 @@ passdoioctl(struct cdev *dev, u_long cmd int ccb_malloced; inccb = (union ccb *)addr; +#if defined(BUF_TRACKING) || defined(FULL_BUF_TRACKING) + if (inccb->ccb_h.func_code == XPT_SCSI_IO) + inccb->csio.bio = NULL; +#endif /* * Some CCB types, like scan bus and scan lun can only go @@ -1875,6 +1879,10 @@ passdoioctl(struct cdev *dev, u_long cmd cam_periph_lock(periph); break; } +#if defined(BUF_TRACKING) || defined(FULL_BUF_TRACKING) + if (ccb->ccb_h.func_code == XPT_SCSI_IO) + ccb->csio.bio = NULL; +#endif if (ccb->ccb_h.flags & CAM_CDB_POINTER) { if (ccb->csio.cdb_len > IOCDBLEN) {