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NFSD: Put file after ima_file_check fail in nfsd_open()

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Signed-off-by: Kinglong Mee <kinglongmee@gmail.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
Kinglong Mee 2014-09-03 08:14:06 +08:00 committed by J. Bruce Fields
parent 66f09ca717
commit 8519f994e5
1 changed files with 17 additions and 10 deletions
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27
fs/nfsd/vfs.c
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@ -649,6 +649,7 @@ nfsd_open(struct svc_rqst *rqstp, struct svc_fh *fhp, umode_t type,
{ {
struct path path; struct path path;
struct inode *inode; struct inode *inode;
struct file *file;
int flags = O_RDONLY|O_LARGEFILE; int flags = O_RDONLY|O_LARGEFILE;
__be32 err; __be32 err;
int host_err = 0; int host_err = 0;
@ -703,19 +704,25 @@ nfsd_open(struct svc_rqst *rqstp, struct svc_fh *fhp, umode_t type,
else else
flags = O_WRONLY|O_LARGEFILE; flags = O_WRONLY|O_LARGEFILE;
} }
*filp = dentry_open(&path, flags, current_cred());
if (IS_ERR(*filp)) {
host_err = PTR_ERR(*filp);
*filp = NULL;
} else {
host_err = ima_file_check(*filp, may_flags);
if (may_flags & NFSD_MAY_64BIT_COOKIE) file = dentry_open(&path, flags, current_cred());
(*filp)->f_mode |= FMODE_64BITHASH; if (IS_ERR(file)) {
else host_err = PTR_ERR(file);
(*filp)->f_mode |= FMODE_32BITHASH; goto out_nfserr;
} }
host_err = ima_file_check(file, may_flags);
if (host_err) {
nfsd_close(file);
goto out_nfserr;
}
if (may_flags & NFSD_MAY_64BIT_COOKIE)
file->f_mode |= FMODE_64BITHASH;
else
file->f_mode |= FMODE_32BITHASH;
*filp = file;
out_nfserr: out_nfserr:
err = nfserrno(host_err); err = nfserrno(host_err);
out: out: