Messages in this thread | | | Date | Tue, 05 Dec 2017 09:47:13 -0600 | From | "Gustavo A. R. Silva" <> | Subject | Re: [PATCH] drm/vmwgfx_kms: Fix potential NULL pointer dereference |
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Hi Ville,
Quoting Ville Syrjälä <ville.syrjala@linux.intel.com>:
> On Mon, Dec 04, 2017 at 03:54:18PM -0600, Gustavo A. R. Silva wrote: >> crtc_state is being null checked in a previous code block, which implies >> that such pointer might be null. >> >> crtc_state is dereferenced in drm_atomic_helper_check_plane_state, hence >> there is a potential null pointer dereference. > > This is a false positive. drm_atomic_helper_check_plane_state() will not > dereference crtc_state when plane_state->crtc is NULL. >
You are right.
Thank you for clarifying. -- Gustavo A. R. Silva
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