There is a possble Null Pointer dereference in intel_atomic.c and this patch fixes the same by introducting a check to old_state, new_state old_conn_state and new_conn_state variables. Signed-off-by: Nischal Varide <nischal.varide@xxxxxxxxx> --- drivers/gpu/drm/i915/display/intel_atomic.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_atomic.c b/drivers/gpu/drm/i915/display/intel_atomic.c index 630f49b7aa01..ab58f061c8a7 100644 --- a/drivers/gpu/drm/i915/display/intel_atomic.c +++ b/drivers/gpu/drm/i915/display/intel_atomic.c @@ -132,6 +132,9 @@ int intel_digital_connector_atomic_check(struct drm_connector *conn, to_intel_digital_connector_state(old_state); struct drm_crtc_state *crtc_state; + if (!(new_state && new_conn_state && old_state && old_conn_state)) + return 0; + intel_hdcp_atomic_check(conn, old_state, new_state); intel_psr_atomic_check(conn, old_state, new_state); @@ -192,6 +195,8 @@ intel_connector_needs_modeset(struct intel_atomic_state *state, old_conn_state = drm_atomic_get_old_connector_state(&state->base, connector); new_conn_state = drm_atomic_get_new_connector_state(&state->base, connector); + if (!(old_conn_state && new_conn_state)) + return 0; return old_conn_state->crtc != new_conn_state->crtc || (new_conn_state->crtc && -- 2.26.0 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
