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-rw-r--r--fs/open.c17
1 files changed, 11 insertions, 6 deletions
diff --git a/fs/open.c b/fs/open.c
index b1238e1..f96eaab 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -783,7 +783,8 @@ static inline int __get_file_write_access(struct inode *inode,
static struct file *__dentry_open(struct dentry *dentry, struct vfsmount *mnt,
int flags, struct file *f,
- int (*open)(struct inode *, struct file *))
+ int (*open)(struct inode *, struct file *),
+ const struct cred *cred)
{
struct inode *inode;
int error;
@@ -807,7 +808,7 @@ static struct file *__dentry_open(struct dentry *dentry, struct vfsmount *mnt,
f->f_op = fops_get(inode->i_fop);
file_move(f, &inode->i_sb->s_files);
- error = security_dentry_open(f);
+ error = security_dentry_open(f, cred);
if (error)
goto cleanup_all;
@@ -882,6 +883,8 @@ cleanup_file:
struct file *lookup_instantiate_filp(struct nameidata *nd, struct dentry *dentry,
int (*open)(struct inode *, struct file *))
{
+ const struct cred *cred = current_cred();
+
if (IS_ERR(nd->intent.open.file))
goto out;
if (IS_ERR(dentry))
@@ -889,7 +892,7 @@ struct file *lookup_instantiate_filp(struct nameidata *nd, struct dentry *dentry
nd->intent.open.file = __dentry_open(dget(dentry), mntget(nd->path.mnt),
nd->intent.open.flags - 1,
nd->intent.open.file,
- open);
+ open, cred);
out:
return nd->intent.open.file;
out_err:
@@ -908,6 +911,7 @@ EXPORT_SYMBOL_GPL(lookup_instantiate_filp);
*/
struct file *nameidata_to_filp(struct nameidata *nd, int flags)
{
+ const struct cred *cred = current_cred();
struct file *filp;
/* Pick up the filp from the open intent */
@@ -915,7 +919,7 @@ struct file *nameidata_to_filp(struct nameidata *nd, int flags)
/* Has the filesystem initialised the file for us? */
if (filp->f_path.dentry == NULL)
filp = __dentry_open(nd->path.dentry, nd->path.mnt, flags, filp,
- NULL);
+ NULL, cred);
else
path_put(&nd->path);
return filp;
@@ -925,7 +929,8 @@ struct file *nameidata_to_filp(struct nameidata *nd, int flags)
* dentry_open() will have done dput(dentry) and mntput(mnt) if it returns an
* error.
*/
-struct file *dentry_open(struct dentry *dentry, struct vfsmount *mnt, int flags)
+struct file *dentry_open(struct dentry *dentry, struct vfsmount *mnt, int flags,
+ const struct cred *cred)
{
int error;
struct file *f;
@@ -950,7 +955,7 @@ struct file *dentry_open(struct dentry *dentry, struct vfsmount *mnt, int flags)
return ERR_PTR(error);
}
- return __dentry_open(dentry, mnt, flags, f, NULL);
+ return __dentry_open(dentry, mnt, flags, f, NULL, cred);
}
EXPORT_SYMBOL(dentry_open);
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