From owner-svn-src-head@freebsd.org Tue Aug 20 17:44:03 2019 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 AC78AD6CA5; Tue, 20 Aug 2019 17:44:03 +0000 (UTC) (envelope-from emaste@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 46CdSz44rZz4b4V; Tue, 20 Aug 2019 17:44:03 +0000 (UTC) (envelope-from emaste@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 6DD606D82; Tue, 20 Aug 2019 17:44:03 +0000 (UTC) (envelope-from emaste@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id x7KHi3As060503; Tue, 20 Aug 2019 17:44:03 GMT (envelope-from emaste@FreeBSD.org) Received: (from emaste@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id x7KHi38h060502; Tue, 20 Aug 2019 17:44:03 GMT (envelope-from emaste@FreeBSD.org) Message-Id: <201908201744.x7KHi38h060502@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: emaste set sender to emaste@FreeBSD.org using -f From: Ed Maste Date: Tue, 20 Aug 2019 17:44:03 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r351254 - head/sys/kern X-SVN-Group: head X-SVN-Commit-Author: emaste X-SVN-Commit-Paths: head/sys/kern X-SVN-Commit-Revision: 351254 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: Tue, 20 Aug 2019 17:44:03 -0000 Author: emaste Date: Tue Aug 20 17:44:03 2019 New Revision: 351254 URL: https://svnweb.freebsd.org/changeset/base/351254 Log: mqueuefs: fix compat32 struct file leak In a compat32 error case we previously leaked a struct file. Submitted by: Karsten König, Secfault Security Security: CVE-2019-5603 Modified: head/sys/kern/uipc_mqueue.c Modified: head/sys/kern/uipc_mqueue.c ============================================================================== --- head/sys/kern/uipc_mqueue.c Tue Aug 20 17:39:32 2019 (r351253) +++ head/sys/kern/uipc_mqueue.c Tue Aug 20 17:44:03 2019 (r351254) @@ -2806,7 +2806,7 @@ freebsd32_kmq_timedsend(struct thread *td, if (uap->abs_timeout != NULL) { error = copyin(uap->abs_timeout, &ets32, sizeof(ets32)); if (error != 0) - return (error); + goto out; CP(ets32, ets, tv_sec); CP(ets32, ets, tv_nsec); abs_timeout = &ets; @@ -2815,6 +2815,7 @@ freebsd32_kmq_timedsend(struct thread *td, waitok = !(fp->f_flag & O_NONBLOCK); error = mqueue_send(mq, uap->msg_ptr, uap->msg_len, uap->msg_prio, waitok, abs_timeout); +out: fdrop(fp, td); return (error); }