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(parent: ab72a70) | patch
fanotify: sanitize failure exits in copy_event_to_user()
authorAl Viro <viro@zeniv.linux.org.uk>
Sun, 19 Aug 2012 16:30:45 +0000 (12:30 -0400)
committerAl Viro <viro@zeniv.linux.org.uk>
Thu, 27 Sep 2012 01:08:52 +0000 (21:08 -0400)
commit352e3b249284235e00745f3e71fc348b913e5deb
tree4d0c7342c95cb30f59b706048486c72a78be9f77tree | snapshot (tar.gz zip)
parentab72a7028c0cc22731dc60beceb595b321d1cdb9commit | diff
fanotify: sanitize failure exits in copy_event_to_user()

* do copy_to_user() before prepare_for_access_response(); that kills
the need in remove_access_response().
* don't do fd_install() until we are past the last possible failure
exit.  Don't use sys_close() on cleanup side - just put_unused_fd()
and fput().  Less racy that way...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
fs/notify/fanotify/fanotify_user.c diff | blob | blame | history