shithub: jbig2

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Bug 696052: Check that cloned image exists before proceeding further.

--- a/jbig2_refinement.c

+++ b/jbig2_refinement.c

@@ -508,6 +508,9 @@

     /* the reference is just (a subset of) the page buffer */

     params.reference = jbig2_image_clone(ctx,

       ctx->pages[ctx->current_page].image);

+    if (params.reference == NULL)

+      return jbig2_error(ctx, JBIG2_SEVERITY_FATAL, segment->number,

+        "could not clone reference bitmap!");

     /* TODO: subset the image if appropriate */

   }