Fix runtime error: applying zero offset to null pointer

uclouvain · Sep 11, 2023 · 7704dd1 · 7704dd1
1 parent 1ee6d11
commit 7704dd1
Showing 1 changed file with 10 additions and 0 deletions.
diff --git a/src/lib/openjp2/tcd.c b/src/lib/openjp2/tcd.c
@@ -2324,6 +2324,11 @@ static OPJ_BOOL opj_tcd_dc_level_shift_decode(opj_tcd_t *p_tcd)
                                                    l_max);
                     ++l_current_ptr;
                 }
+
+                if (!l_current_ptr) {
+                    /* Avoid runtime error: applying zero offset to null pointer */
+                    return OPJ_FALSE;
+                }
                 l_current_ptr += l_stride;
             }
         } else {
@@ -2342,6 +2347,11 @@ static OPJ_BOOL opj_tcd_dc_level_shift_decode(opj_tcd_t *p_tcd)
                     }
                     ++l_current_ptr;
                 }
+
+                if (!l_current_ptr) {
+                    /* Avoid runtime error: applying zero offset to null pointer */
+                    return OPJ_FALSE;
+                }
                 l_current_ptr += l_stride;
             }
         }