On Wed, Dec 05, 2018 at 04:21:55PM -0800, Todd Kjos wrote:
> > How about grabbing the references to all victims (*before* screwing with
> > ksys_close()), sticking them into a structure with embedded callback_head
> > and using task_work_add() on it, the callback doing those fput()?
> >
> > The ca
On Wed, Dec 05, 2018 at 01:16:01PM -0800, Todd Kjos wrote:
> 44d8047f1d87a ("binder: use standard functions to allocate fds")
> exposed a pre-existing issue in the binder driver.
>
> fdget() is used in ksys_ioctl() as a performance optimization.
> One of the rules associated with fdget() is that k
44d8047f1d87a ("binder: use standard functions to allocate fds")
exposed a pre-existing issue in the binder driver.
fdget() is used in ksys_ioctl() as a performance optimization.
One of the rules associated with fdget() is that ksys_close() must
not be called between the fdget() and the fdput(). T
