Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756677Ab0KVQAB (ORCPT ); Mon, 22 Nov 2010 11:00:01 -0500 Received: from out1.smtp.messagingengine.com ([66.111.4.25]:41750 "EHLO out1.smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751393Ab0KVP77 (ORCPT ); Mon, 22 Nov 2010 10:59:59 -0500 X-Sasl-enc: VzcIamP+8569HkwnBQMBB4Y4GGsdyDPOMGFRzzVWjZiy 1290441598 To: Alexander Viro Subject: [RFC][PATCH 2/4] fs: move file->f_cred initialization before security_file_alloc() From: Roberto Sassu Organization: Politecnico di Torino Date: Mon, 22 Nov 2010 16:57:21 +0100 Cc: Stephen Smalley , James Morris , Eric Paris , Casey Schaufler , Paul Moore , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-security-module@vger.kernel.org, selinux@tycho.nsa.gov MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart6362672.EAEOHeV1jh"; protocol="application/pkcs7-signature"; micalg=sha1 Content-Transfer-Encoding: 7bit Message-Id: <201011221657.21504.roberto.sassu@polito.it> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 7850 Lines: 133 --nextPart6362672.EAEOHeV1jh Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable The initialization of the 'f_cred' field of the file descriptor structure has been moved before calling the function security_file_alloc() in order to allow LSM security modules to use such information. Signed-off-by: Roberto Sassu =2D-- fs/file_table.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/fs/file_table.c b/fs/file_table.c index fd446e3..78b9174 100644 =2D-- a/fs/file_table.c +++ b/fs/file_table.c @@ -125,13 +125,13 @@ struct file *get_empty_filp(const struct cred *task_c= red) goto fail; =20 percpu_counter_inc(&nr_files); + f->f_cred =3D get_cred(cred); if (security_file_alloc(f)) goto fail_sec; =20 INIT_LIST_HEAD(&f->f_u.fu_list); atomic_long_set(&f->f_count, 1); rwlock_init(&f->f_owner.lock); =2D f->f_cred =3D get_cred(cred); spin_lock_init(&f->f_lock); eventpoll_init_file(f); /* f->f_version: 0 */ =2D-=20 1.7.2.3 --nextPart6362672.EAEOHeV1jh Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Disposition: attachment; filename="smime.p7s" Content-Transfer-Encoding: base64 MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIQCTCCBLMw ggOboAMCAQICARQwDQYJKoZIhvcNAQEFBQAwQTEQMA4GA1UEChMHRXVyb1BLSTEtMCsGA1UEAxMk 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