From: "J. Bruce Fields" <bfields@redhat.com>
To: Oleg Drokin <green@linuxhacker.ru>
Cc: Jeff Layton <jlayton@poochiereds.net>,
linux-nfs@vger.kernel.org, linux-kernel@vger.kernel.org,
"J. Bruce Fields" <bfields@fieldses.org>,
"J. Bruce Fields" <bfields@redhat.com>
Subject: [PATCH 7/7] nfsd: drop unnecessary MAY_EXEC check from create
Date: Fri, 22 Jul 2016 13:48:56 -0400 [thread overview]
Message-ID: <1469209736-6490-8-git-send-email-bfields@redhat.com> (raw)
In-Reply-To: <1469209736-6490-1-git-send-email-bfields@redhat.com>
From: "J. Bruce Fields" <bfields@redhat.com>
We need an fh_verify to make sure we at least have a dentry, but actual
permission checks happen later.
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---
fs/nfsd/nfs4proc.c | 7 +------
fs/nfsd/vfs.c | 6 +-----
2 files changed, 2 insertions(+), 11 deletions(-)
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index 9d7e1edf0cca..1fb222752b2b 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -605,12 +605,7 @@ nfsd4_create(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
fh_init(&resfh, NFS4_FHSIZE);
- /*
- * We just check that parent is accessible here, nfsd_* do their
- * own access permission checks
- */
- status = fh_verify(rqstp, &cstate->current_fh, S_IFDIR,
- NFSD_MAY_EXEC);
+ status = fh_verify(rqstp, &cstate->current_fh, S_IFDIR, NFSD_MAY_NOP);
if (status)
return status;
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index cd06c6511cfc..c844fd601381 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -1236,11 +1236,7 @@ nfsd_create(struct svc_rqst *rqstp, struct svc_fh *fhp,
if (isdotent(fname, flen))
return nfserr_exist;
- /*
- * Even though it is a create, first let's see if we are even allowed
- * to peek inside the parent
- */
- err = fh_verify(rqstp, fhp, S_IFDIR, NFSD_MAY_EXEC);
+ err = fh_verify(rqstp, fhp, S_IFDIR, NFSD_MAY_NOP);
if (err)
return err;
--
2.7.4
prev parent reply other threads:[~2016-07-22 17:49 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-08 1:47 [PATCH] nfsd: Make creates return EEXIST correctly instead of EPERM Oleg Drokin
2016-07-08 11:02 ` Jeff Layton
2016-07-08 15:14 ` Oleg Drokin
2016-07-08 15:53 ` Jeff Layton
2016-07-08 15:59 ` Oleg Drokin
2016-07-08 16:17 ` Jeff Layton
2016-07-08 16:28 ` Oleg Drokin
2016-07-09 2:52 ` Al Viro
2016-07-09 2:58 ` Oleg Drokin
2016-07-09 3:13 ` Al Viro
2016-07-08 16:04 ` J. Bruce Fields
2016-07-08 16:16 ` Oleg Drokin
2016-07-08 20:49 ` J. Bruce Fields
2016-07-08 21:47 ` Oleg Drokin
2016-07-08 21:47 ` Oleg Drokin
2016-07-09 3:10 ` Al Viro
2016-07-09 3:41 ` Oleg Drokin
2016-07-13 19:00 ` J. Bruce Fields
2016-07-08 20:54 ` J. Bruce Fields
2016-07-08 21:53 ` Oleg Drokin
2016-07-21 20:34 ` J. Bruce Fields
2016-07-21 20:37 ` Oleg Drokin
2016-07-22 1:57 ` J. Bruce Fields
2016-07-22 6:35 ` Oleg Drokin
2016-07-22 10:55 ` J. Bruce Fields
2016-07-22 15:13 ` Oleg Drokin
2016-07-22 17:48 ` J. Bruce Fields
2016-07-22 17:48 ` [PATCH 1/7] nfsd: Make creates return EEXIST instead of EACCES J. Bruce Fields
2016-07-22 17:48 ` [PATCH 2/7] nfsd: remove redundant zero-length check from create J. Bruce Fields
2016-07-22 17:48 ` [PATCH 3/7] nfsd: remove redundant i_lookup check J. Bruce Fields
2016-07-24 0:22 ` Al Viro
2016-07-24 12:10 ` J. Bruce Fields
2016-07-24 14:23 ` Al Viro
2016-07-24 20:21 ` J. Bruce Fields
2016-07-22 17:48 ` [PATCH 4/7] nfsd: reorganize nfsd_create J. Bruce Fields
2016-07-22 17:48 ` [PATCH 5/7] nfsd: remove unnecessary positive-dentry check J. Bruce Fields
2016-07-22 17:48 ` [PATCH 6/7] nfsd: clean up bad-type check in nfsd_create_locked J. Bruce Fields
2016-07-22 17:48 ` J. Bruce Fields [this message]
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