[ANN] JRuby 9.2.11.1 Released

The JRuby community is pleased to announce the release of JRuby 9.2.11.1

    Homepage: http://www.jruby.org/
    Download: http://www.jruby.org/download

JRuby 9.2.x is compatible with Ruby 2.5.x and stays in sync with C Ruby. As
always there is a mix of miscellaneous fixes so be sure to read the issue
list below. All users are encouraged to upgrade.

As we are actively working on 9.3.0.0 we decided to put out a mini release
which fixes a single issue.

   - sprintf substring string formatting with precision may expose
characters (#6137)

If you format a string using a precision specifier (e.g. %.1s) AND you pass
in a substring of a larger string, you may see some of the larger string’s
characters in the formatted result. This is due to a bug in the handling of
internal String data that causes the result to contain more characters than
requested.

long_string = "aabbccddhelloddccbbaa"
start_index = 8
sub_str_length = 5
precision = 3
sub_string = long_string[start_index, sub_str_length]
puts sprintf("%.#{precision}s", sub_string)
# => helloddccbb

This bug could potentially expose sensitive content from the original
String. It is unlikely to affect most users, but you are still encouraged
to upgrade.
Github Issues resolved for 9.2.11.1

    #6138 - Subtract begin offset for partial substring in sprintf 's'
    #6137 - `sprintf` adds extra buffer slots when precision arg truncates
string slices

···

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