From 3c317e76a2fe78896b546e08fa753075463e7d41 Mon Sep 17 00:00:00 2001
From: Serhiy Storchaka <storchaka@gmail.com>
Date: Sun, 12 Jun 2016 09:22:01 +0300
Subject: Issue #27286: Fixed compiling BUILD_MAP_UNPACK_WITH_CALL opcode. 
 Calling function with generalized unpacking (PEP 448) and conflicting keyword
 names could cause undefined behavior.

---
 Python/compile.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'Python/compile.c')

diff --git a/Python/compile.c b/Python/compile.c
index 1e720eab0d..0c4a6c853f 100644
--- a/Python/compile.c
+++ b/Python/compile.c
@@ -3262,7 +3262,7 @@ compiler_call_helper(struct compiler *c,
         code |= 2;
         if (nsubkwargs > 1) {
             /* Pack it all up */
-            int function_pos = n + (code & 1) + nkw + 1;
+            int function_pos = n + (code & 1) + 2 * nkw + 1;
             ADDOP_I(c, BUILD_MAP_UNPACK_WITH_CALL, nsubkwargs | (function_pos << 8));
         }
     }
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