From owner-freebsd-bugs@freebsd.org Thu Sep 20 12:00:11 2018 Return-Path: Delivered-To: freebsd-bugs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 191D5109A041 for ; Thu, 20 Sep 2018 12:00:11 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.ysv.freebsd.org (mailman.ysv.freebsd.org [IPv6:2001:1900:2254:206a::50:5]) by mx1.freebsd.org (Postfix) with ESMTP id AAAAC8A053 for ; Thu, 20 Sep 2018 12:00:10 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.ysv.freebsd.org (Postfix) id 6FDCD109A03B; Thu, 20 Sep 2018 12:00:10 +0000 (UTC) Delivered-To: bugs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 5ED16109A03A for ; Thu, 20 Sep 2018 12:00:10 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.ysv.freebsd.org (mxrelay.ysv.freebsd.org [IPv6:2001:1900:2254:206a::19:3]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mxrelay.ysv.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 012698A04F for ; Thu, 20 Sep 2018 12:00:10 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.ysv.freebsd.org (Postfix) with ESMTPS id 371BD1446E for ; Thu, 20 Sep 2018 12:00:09 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id w8KC090R031142 for ; Thu, 20 Sep 2018 12:00:09 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id w8KC09F7031133 for bugs@FreeBSD.org; Thu, 20 Sep 2018 12:00:09 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 231510] use-after-free vulnerability in function g_raid_tr_iodone_raid0 (sys/geom/raid/tr_raid0.c) Date: Thu, 20 Sep 2018 12:00:08 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: CURRENT X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: yangx92@hotmail.com X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.27 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 20 Sep 2018 12:00:11 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D231510 Bug ID: 231510 Summary: use-after-free vulnerability in function g_raid_tr_iodone_raid0 (sys/geom/raid/tr_raid0.c) Product: Base System Version: CURRENT Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: yangx92@hotmail.com There is a use-after-free vulnerability in function g_raid_tr_iodone_raid0 (sys/geom/raid/tr_raid0.c) 313 static void 314 g_raid_tr_iodone_raid0(struct g_raid_tr_object *tr, 315 struct g_raid_subdisk *sd,struct bio *bp) 316 { 317 struct bio *pbp; 318=20 319 pbp =3D bp->bio_parent; 320 if (pbp->bio_error =3D=3D 0) 321 pbp->bio_error =3D bp->bio_error; 322 g_destroy_bio(bp); 323 pbp->bio_inbed++; 324 if (pbp->bio_children =3D=3D pbp->bio_inbed) { 325 pbp->bio_completed =3D pbp->bio_length; 326 g_raid_iodone(pbp, bp->bio_error); 327 } 328 } bp is destroyed in line 322, while it is used in line 326 again. the proposal patch should be like below. pbp->bio_inbed++; if (pbp->bio_children =3D=3D pbp->bio_inbed) { pbp->bio_completed =3D pbp->bio_length; - g_raid_iodone(pbp, bp->bio_error); + g_raid_iodone(pbp, pbp->bio_error); } } --=20 You are receiving this mail because: You are the assignee for the bug.=