shithub: libvpx

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Prevent access to invalid pointer

The commit added check to make sure no invalid memory access even when
the decoder instance is never initialized.

Change-Id: I4da343d0b3c78c27777ac7f5ce7688562c69f0c5

--- a/vp9/vp9_dx_iface.c

+++ b/vp9/vp9_dx_iface.c

@@ -658,8 +658,10 @@

   if (corrupted) {

     VP9D_COMP *pbi = (VP9D_COMP *)ctx->pbi;

-    *corrupted = pbi->common.frame_to_show->corrupted;

-

+    if (pbi)

+      *corrupted = pbi->common.frame_to_show->corrupted;

+    else

+      return VPX_CODEC_ERROR;

     return VPX_CODEC_OK;

   } else {

     return VPX_CODEC_INVALID_PARAM;