Fix stack check when recording BC_VARG.

Contributed by Yichun Zhang.
LuaJIT · Dec 8, 2019 · e0388e6 · e0388e6
1 parent 1d1bac5
commit e0388e6
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/src/lj_record.c b/src/lj_record.c
@@ -1602,6 +1602,8 @@ static void rec_varg(jit_State *J, BCReg dst, ptrdiff_t nresults)
       lj_trace_err_info(J, LJ_TRERR_NYIBC);
     }
   }
+  if (J->baseslot + J->maxslot >= LJ_MAX_JSLOTS)
+    lj_trace_err(J, LJ_TRERR_STACKOV);
 }
 
 /* -- Record allocations -------------------------------------------------- */