diff options
Diffstat (limited to 'fs/namei.c')
| -rw-r--r-- | fs/namei.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/fs/namei.c b/fs/namei.c index bf03a62e1f5d..c75ea03ca147 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -523,7 +523,7 @@ struct nameidata { struct inode *link_inode; unsigned root_seq; int dfd; -}; +} __randomize_layout; static void set_nameidata(struct nameidata *p, int dfd, struct filename *name) { @@ -1128,9 +1128,18 @@ static int follow_automount(struct path *path, struct nameidata *nd, * of the daemon to instantiate them before they can be used. */ if (!(nd->flags & (LOOKUP_PARENT | LOOKUP_DIRECTORY | - LOOKUP_OPEN | LOOKUP_CREATE | LOOKUP_AUTOMOUNT)) && - path->dentry->d_inode) - return -EISDIR; + LOOKUP_OPEN | LOOKUP_CREATE | + LOOKUP_AUTOMOUNT))) { + /* Positive dentry that isn't meant to trigger an + * automount, EISDIR will allow it to be used, + * otherwise there's no mount here "now" so return + * ENOENT. + */ + if (path->dentry->d_inode) + return -EISDIR; + else + return -ENOENT; + } if (path->dentry->d_sb->s_user_ns != &init_user_ns) return -EACCES; |