File tiff-CVE-2025-8177.patch of Package tiff.40031

This also includes e8de4dc1f923576dce9d625caeebd93f9db697e1
alongside the actual fix for this CVE e8de4dc1f923576dce9d625caeebd93f9db697e1
Index: tiff-4.0.9/tools/thumbnail.c
===================================================================
--- tiff-4.0.9.orig/tools/thumbnail.c
+++ tiff-4.0.9/tools/thumbnail.c
@@ -540,7 +540,15 @@ setrow(uint8* row, uint32 nrows, const u
 	    }
 	    acc += bits[*src & mask1];
 	}
-	*row++ = cmap[(255*acc)/area];
+	if (255 * acc / area < 256)
+	{
+		*row++ = cmap[(255 * acc) / area];
+	}
+	else
+	{
+		fprintf(stderr, "acc=%d, area=%d\n", acc, area);
+		*row++ = cmap[0];
+	}
     }
 }