On Thu, Aug 26, 2021 at 07:53:58PM +0800, Desmond Cheong Zhi Xi wrote:
> On 26/8/21 5:53 pm, Daniel Vetter wrote:
> > On Thu, Aug 26, 2021 at 10:01:16AM +0800, Desmond Cheong Zhi Xi wrote:
> > > drm_master_release can be called on a drm_file without a master, which
> > > results in a null ptr deref
On 26/8/21 5:53 pm, Daniel Vetter wrote:
On Thu, Aug 26, 2021 at 10:01:16AM +0800, Desmond Cheong Zhi Xi wrote:
drm_master_release can be called on a drm_file without a master, which
results in a null ptr dereference of file_priv->master->magic_map. The
three cases are:
1. Error path in drm_ope
On Thu, Aug 26, 2021 at 10:01:16AM +0800, Desmond Cheong Zhi Xi wrote:
> drm_master_release can be called on a drm_file without a master, which
> results in a null ptr dereference of file_priv->master->magic_map. The
> three cases are:
>
> 1. Error path in drm_open_helper
> drm_open():
> drm
drm_master_release can be called on a drm_file without a master, which
results in a null ptr dereference of file_priv->master->magic_map. The
three cases are:
1. Error path in drm_open_helper
drm_open():
drm_open_helper():
drm_master_open():
drm_new_set_master(); <--- returns -
