From 994d13b98f5ef03a43a9ca9adc76490bc8ec6426 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Fri, 30 Dec 2016 08:01:34 +0000
Subject: rational.c: memory leak in gcd

* rational.c (rb_gcd_gmp): fix memory leak.  patched by KISHIMOTO,
  Makoto <ksmakoto AT dd.iij4u.or.jp> in [ruby-dev:49934].
  [Bug #13089]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57236 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 rational.c | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'rational.c')

diff --git a/rational.c b/rational.c
index 439f9673da..f6c49fe516 100644
--- a/rational.c
+++ b/rational.c
@@ -261,10 +261,15 @@ rb_gcd_gmp(VALUE x, VALUE y)
 
     mpz_gcd(mz, mx, my);
 
+    mpz_clear(mx);
+    mpz_clear(my);
+
     zn = (mpz_sizeinbase(mz, 16) + SIZEOF_BDIGIT*2 - 1) / (SIZEOF_BDIGIT*2);
     z = rb_big_new(zn, 1);
     mpz_export(BIGNUM_DIGITS(z), &count, -1, sizeof(BDIGIT), 0, nails, mz);
 
+    mpz_clear(mz);
+
     return rb_big_norm(z);
 }
 #endif
-- 
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