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Fix dtoa buffer overrun

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_6@67957 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
usa 2022-04-12 11:49:45 +00:00
parent fa7f75ddda
commit 69f9992ed4
3 changed files with 21 additions and 2 deletions
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18
test/ruby/test_float.rb
View file

@ -171,6 +171,24 @@ class TestFloat < Test::Unit::TestCase
assert_raise(ArgumentError, n += z + "A") {Float(n)}
assert_raise(ArgumentError, n += z + ".0") {Float(n)}
end
x = nil
2000.times do
x = Float("0x"+"0"*30)
break unless x == 0.0
end
assert_equal(0.0, x, ->{"%a" % x})
x = nil
2000.times do
begin
x = Float("0x1."+"0"*270)
rescue ArgumentError => e
raise unless /"0x1\.0{270}"/ =~ e.message
else
break
end
end
assert_nil(x, ->{"%a" % x})
end
def test_divmod

3
util.c
View file

@ -2081,6 +2081,7 @@ break2:
if (!*++s || !(s1 = strchr(hexdigit, *s))) goto ret0;
if (*s == '0') {
while (*++s == '0');
if (!*s) goto ret;
s1 = strchr(hexdigit, *s);
}
if (s1 != NULL) {
@ -2103,7 +2104,7 @@ break2:
for (; *s && (s1 = strchr(hexdigit, *s)); ++s) {
adj += aadj * ((s1 - hexdigit) & 15);
if ((aadj /= 16) == 0.0) {
while (strchr(hexdigit, *++s));
while (*++s && strchr(hexdigit, *s));
break;
}
}

2
version.h
View file

@ -1,6 +1,6 @@
#define RUBY_VERSION "2.6.10"
#define RUBY_RELEASE_DATE "2022-04-12"
#define RUBY_PATCHLEVEL 209
#define RUBY_PATCHLEVEL 210
#define RUBY_RELEASE_YEAR 2022
#define RUBY_RELEASE_MONTH 4