From b64876ae559b05949c6857fb3d76822c2f7c4df2 Mon Sep 17 00:00:00 2001 From: usa Date: Sun, 28 Feb 2021 13:47:29 +0000 Subject: merge revision(s) f364564e66d1db1de8e80d669287386595c8bc46: [Backport #16269] bignum.c (estimate_initial_sqrt): prevent integer overflow `Integer.sqrt(0xffff_ffff_ffff_ffff ** 2)` caused assertion failure because of integer overflow. [ruby-core:95453] [Bug #16269] --- bignum.c | 10 +++++++++- test/ruby/test_integer.rb | 3 +++ 2 files changed, 12 insertions(+), 1 deletion(-) git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_6@67894 b2dd03c8-39d4-4d8f-98ff-823fe69b080e --- test/ruby/test_integer.rb | 3 +++ 1 file changed, 3 insertions(+) (limited to 'test') diff --git a/test/ruby/test_integer.rb b/test/ruby/test_integer.rb index 69347b6b11..0f289d8ed9 100644 --- a/test/ruby/test_integer.rb +++ b/test/ruby/test_integer.rb @@ -595,6 +595,9 @@ class TestInteger < Test::Unit::TestCase failures << n unless root*root <= n && (root+1)*(root+1) > n end assert_empty(failures, bug13440) + + x = 0xffff_ffff_ffff_ffff + assert_equal(x, Integer.sqrt(x ** 2), "[ruby-core:95453]") end def test_fdiv -- cgit v1.2.3