source/html/html-layout.c: fix SEGV with empty <hN> header block.

ArtifexSoftware · Jun 7, 2024 · b084345 · b084345
1 parent b7a4610
commit b084345
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/source/html/html-layout.c b/source/html/html-layout.c
@@ -2601,7 +2601,7 @@ static int enumerate_block_box(fz_context *ctx, fz_html_box *box, float page_top
 			/* We have a box worthy of a callback. */
 			char *text = NULL;
 			pos.text = NULL;
-			if (heading)
+			if (heading && box->down)
 				pos.text = text = gather_text(ctx, box->down);
 			pos.depth = depth;
 			pos.heading = heading;