From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965078Ab3BMR6I (ORCPT ); Wed, 13 Feb 2013 12:58:08 -0500 Received: from out03.mta.xmission.com ([166.70.13.233]:56830 "EHLO out03.mta.xmission.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965060Ab3BMR6C (ORCPT ); Wed, 13 Feb 2013 12:58:02 -0500 From: "Eric W. Biederman" To: Cc: Linux Containers , , "Serge E. Hallyn" , "Eric W. Biederman" , "J. Bruce Fields" , Trond Myklebust Date: Wed, 13 Feb 2013 09:51:38 -0800 Message-Id: <1360777934-5663-49-git-send-email-ebiederm@xmission.com> X-Mailer: git-send-email 1.7.5.4 In-Reply-To: <1360777934-5663-1-git-send-email-ebiederm@xmission.com> References: <87621w14vs.fsf@xmission.com> <1360777934-5663-1-git-send-email-ebiederm@xmission.com> X-XM-AID: U2FsdGVkX1/lhQyjHgFHYixNHMxsNdGKn67WdjSEv9U= X-SA-Exim-Connect-IP: 98.207.153.68 X-SA-Exim-Mail-From: ebiederm@xmission.com X-Spam-Report: * -1.0 ALL_TRUSTED Passed through trusted hosts only via SMTP * 3.0 XMDrug1234561 Drug references * 0.1 XMSubLong Long Subject * 0.0 T_TM2_M_HEADER_IN_MSG BODY: T_TM2_M_HEADER_IN_MSG * -0.5 BAYES_05 BODY: Bayes spam probability is 1 to 5% * [score: 0.0366] * -0.0 DCC_CHECK_NEGATIVE Not listed in DCC * [sa06 1397; Body=1 Fuz1=1 Fuz2=1] * 0.0 T_TooManySym_01 4+ unique symbols in subject * 0.0 T_XMDrugObfuBody_08 obfuscated drug references X-Spam-DCC: XMission; sa06 1397; Body=1 Fuz1=1 Fuz2=1 X-Spam-Combo: *; X-Spam-Relay-Country: Subject: [PATCH review 49/85] sunrpc: Update svcgss xdr handle to rpsec_contect cache X-Spam-Flag: No X-SA-Exim-Version: 4.2.1 (built Wed, 14 Nov 2012 14:26:46 -0700) X-SA-Exim-Scanned: Yes (on in02.mta.xmission.com) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: "Eric W. Biederman" For each received uid call make_kuid and validate the result. For each received gid call make_kgid and validate the result. Cc: "J. Bruce Fields" Cc: Trond Myklebust Signed-off-by: "Eric W. Biederman" --- net/sunrpc/auth_gss/svcauth_gss.c | 18 +++++++++++++----- 1 files changed, 13 insertions(+), 5 deletions(-) diff --git a/net/sunrpc/auth_gss/svcauth_gss.c b/net/sunrpc/auth_gss/svcauth_gss.c index 73e9573..ecd1d58 100644 --- a/net/sunrpc/auth_gss/svcauth_gss.c +++ b/net/sunrpc/auth_gss/svcauth_gss.c @@ -418,6 +418,7 @@ static int rsc_parse(struct cache_detail *cd, { /* contexthandle expiry [ uid gid N mechname ...mechdata... ] */ char *buf = mesg; + int id; int len, rv; struct rsc rsci, *rscp = NULL; time_t expiry; @@ -444,7 +445,7 @@ static int rsc_parse(struct cache_detail *cd, goto out; /* uid, or NEGATIVE */ - rv = get_int(&mesg, &rsci.cred.cr_uid); + rv = get_int(&mesg, &id); if (rv == -EINVAL) goto out; if (rv == -ENOENT) @@ -452,8 +453,16 @@ static int rsc_parse(struct cache_detail *cd, else { int N, i; + /* uid */ + rsci.cred.cr_uid = make_kuid(&init_user_ns, id); + if (!uid_valid(rsci.cred.cr_uid)) + goto out; + /* gid */ - if (get_int(&mesg, &rsci.cred.cr_gid)) + if (get_int(&mesg, &id)) + goto out; + rsci.cred.cr_gid = make_kgid(&init_user_ns, id); + if (!gid_valid(rsci.cred.cr_gid)) goto out; /* number of additional gid's */ @@ -467,11 +476,10 @@ static int rsc_parse(struct cache_detail *cd, /* gid's */ status = -EINVAL; for (i=0; i