From owner-svn-src-head@FreeBSD.ORG Wed Feb 18 13:37:29 2015 Return-Path: Delivered-To: svn-src-head@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 4811CBB3; Wed, 18 Feb 2015 13:37:29 +0000 (UTC) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:1900:2254:2068::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 3308F9A7; Wed, 18 Feb 2015 13:37:29 +0000 (UTC) Received: from svn.freebsd.org ([127.0.1.70]) by svn.freebsd.org (8.14.9/8.14.9) with ESMTP id t1IDbSxE079239; Wed, 18 Feb 2015 13:37:28 GMT (envelope-from mjg@FreeBSD.org) Received: (from mjg@localhost) by svn.freebsd.org (8.14.9/8.14.9/Submit) id t1IDbSER079238; Wed, 18 Feb 2015 13:37:28 GMT (envelope-from mjg@FreeBSD.org) Message-Id: <201502181337.t1IDbSER079238@svn.freebsd.org> X-Authentication-Warning: svn.freebsd.org: mjg set sender to mjg@FreeBSD.org using -f From: Mateusz Guzik Date: Wed, 18 Feb 2015 13:37:28 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r278956 - head/sys/kern X-SVN-Group: head 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: 2.1.18-1 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: Wed, 18 Feb 2015 13:37:29 -0000 Author: mjg Date: Wed Feb 18 13:37:28 2015 New Revision: 278956 URL: https://svnweb.freebsd.org/changeset/base/278956 Log: filedesc: obtain a stable copy of credentials in fget_unlocked This was broken in r278930. While here tidy up fget_mmap to use fdp from local var instead of obtaining the same pointer from td. Modified: head/sys/kern/kern_descrip.c Modified: head/sys/kern/kern_descrip.c ============================================================================== --- head/sys/kern/kern_descrip.c Wed Feb 18 13:07:26 2015 (r278955) +++ head/sys/kern/kern_descrip.c Wed Feb 18 13:37:28 2015 (r278956) @@ -2337,7 +2337,7 @@ fget_unlocked(struct filedesc *fdp, int u_int count; #ifdef CAPABILITIES seq_t seq; - cap_rights_t *haverights; + cap_rights_t haverights; int error; #endif @@ -2356,7 +2356,7 @@ fget_unlocked(struct filedesc *fdp, int #ifdef CAPABILITIES seq = seq_read(fd_seq(fdt, fd)); fde = &fdt->fdt_ofiles[fd]; - haverights = cap_rights_fde(fde); + haverights = *cap_rights_fde(fde); fp = fde->fde_file; if (!seq_consistent(fd_seq(fdt, fd), seq)) { cpu_spinwait(); @@ -2369,7 +2369,7 @@ fget_unlocked(struct filedesc *fdp, int return (EBADF); #ifdef CAPABILITIES if (needrightsp != NULL) { - error = cap_check(haverights, needrightsp); + error = cap_check(&haverights, needrightsp); if (error != 0) return (error); } @@ -2505,7 +2505,7 @@ fget_mmap(struct thread *td, int fd, cap */ if (maxprotp != NULL) *maxprotp = cap_rights_to_vmprot(cap_rights(fdp, fd)); - if (!fd_modified(td->td_proc->p_fd, fd, seq)) + if (!fd_modified(fdp, fd, seq)) break; fdrop(*fpp, td); }