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Commit 6bff7ecc authored by Lino Sanfilippo's avatar Lino Sanfilippo Committed by Eric Paris
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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: default avatarLino Sanfilippo <LinoSanfilippo@gmx.de>
Signed-off-by: default avatarEric Paris <eparis@redhat.com>
parent 1a5cea72

include/linux/fsnotify.h

+5 −4
Original line number Diff line number Diff line
@@ -235,11 +235,12 @@ static inline void fsnotify_open(struct file *file) 
	if (S_ISDIR(inode->i_mode))

		mask |= FS_ISDIR;



	if (!(file->f_mode & FMODE_NONOTIFY)) {

	/* 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);

}

}



/*

 * fsnotify_close - file was closed