From 6bff7eccb0d9bdef4123aad5399e73cbc26683a6 Mon Sep 17 00:00:00 2001 From: Lino Sanfilippo Date: Fri, 29 Oct 2010 12:02:17 +0200 Subject: [PATCH] Ensure FMODE_NONOTIFY is not set by userspace In fsnotify_open() ensure that FMODE_NONOTIFY is never set by userspace. Also always call fsnotify_parent and fsnotify. Signed-off-by: Lino Sanfilippo Signed-off-by: Eric Paris --- include/linux/fsnotify.h | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/include/linux/fsnotify.h b/include/linux/fsnotify.h index ecb43b33d18..5c185fa2708 100644 --- a/include/linux/fsnotify.h +++ b/include/linux/fsnotify.h @@ -235,10 +235,11 @@ static inline void fsnotify_open(struct file *file) if (S_ISDIR(inode->i_mode)) mask |= FS_ISDIR; - if (!(file->f_mode & FMODE_NONOTIFY)) { - fsnotify_parent(path, NULL, mask); - fsnotify(inode, mask, path, FSNOTIFY_EVENT_PATH, NULL, 0); - } + /* FMODE_NONOTIFY must never be set from user */ + file->f_mode &= ~FMODE_NONOTIFY; + + fsnotify_parent(path, NULL, mask); + fsnotify(inode, mask, path, FSNOTIFY_EVENT_PATH, NULL, 0); } /* -- 2.39.3