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pack.c: fix underflow

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* pack.c (pack_unpack_internal): get rid of underflow.
  https://hackerone.com/reports/298246

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62992 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2018-03-28 10:12:17 +00:00
parent 8794dec6a5
commit d02b7bd864
2 changed files with 4 additions and 1 deletions
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3
test/ruby/test_pack.rb
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@ -550,6 +550,9 @@ class TestPack < Test::Unit::TestCase
assert_equal([1, 2], "\x01\x00\x00\x02".unpack("C@3C"))
assert_equal([nil], "\x00".unpack("@1C")) # is it OK?
assert_raise(ArgumentError) { "\x00".unpack("@2C") }
pos = RbConfig::LIMITS["UINTPTR_MAX"] - 99 # -100
assert_raise(RangeError) {"0123456789".unpack("@#{pos}C10")}
end
def test_pack_unpack_percent