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[ruby/json] Fix parsing incomplete unicode escape "\uaaa"

Browse Source 
https://github.com/ruby/json/commit/86c0d4eb7e
This commit is contained in:
tompng 2025-01-20 20:42:20 +09:00 committed by Jean Boussier
parent 2b4b7bdb10
commit c026e44bb5
Notes: git 2025-01-20 13:21:13 +00:00 
Merged: https://github.com/ruby/ruby/pull/12602
2 changed files with 9 additions and 1 deletions
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2
ext/json/parser/parser.c
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@ -630,7 +630,7 @@ static VALUE json_string_unescape(JSON_ParserState *state, const char *string, c
unescape = (char *) "\f";
break;
case 'u':
if (pe > stringEnd - 4) {
if (pe > stringEnd - 5) {
raise_parse_error("incomplete unicode character escape sequence at '%s'", p);
} else {
uint32_t ch = unescape_unicode((unsigned char *) ++pe);

8
test/json/json_parser_test.rb
View File

@ -302,6 +302,14 @@ class JSONParserTest < Test::Unit::TestCase
end
end
def test_invalid_unicode_escape
assert_raise(JSON::ParserError) { parse('"\u"') }
assert_raise(JSON::ParserError) { parse('"\ua"') }
assert_raise(JSON::ParserError) { parse('"\uaa"') }
assert_raise(JSON::ParserError) { parse('"\uaaa"') }
assert_equal "\uaaaa", parse('"\uaaaa"')
end
def test_parse_big_integers
json1 = JSON(orig = (1 << 31) - 1)
assert_equal orig, parse(json1)