1 files changed, 6 insertions, 1 deletions
diff --git a/hwpfilter/source/hwpread.cxx b/hwpfilter/source/hwpread.cxx
index ca2a2eff534e..b3eb5504a0d6 100644
--- a/hwpfilter/source/hwpread.cxx
+++ b/hwpfilter/source/hwpread.cxx
@@ -283,7 +283,12 @@ bool TxtBox::Read(HWPFile & hwpf)
     UpdateBBox(this);
 
     ncell = nCell;
-    if (ncell <= 0){
+    if (ncell <= 0) {
+        return hwpf.SetState(HWP_InvalidFileFormat);
+    }
+
+    if (ncell > 4096 && utl::ConfigManager::IsFuzzing()) {
+        // cut off at an arbitary size to speed up fuzzing
         return hwpf.SetState(HWP_InvalidFileFormat);
     }