new file mode 100644
@@ -0,0 +1,73 @@
+From 957bb7cb81995f26c671afce0ee50a5c660e540e Mon Sep 17 00:00:00 2001
+From: Hiroshi SHIBATA <hsbt@ruby-lang.org>
+Date: Wed, 29 Mar 2023 13:28:25 +0900
+Subject: [PATCH] CVE-2023-28756
+
+CVE: CVE-2023-28756
+Upstream-Status: Backport [https://github.com/ruby/ruby/commit/957bb7cb81995f26c671afce0ee50a5c660e540e]
+Signed-off-by: Hitendra Prajapati <hprajapati@mvista.com>
+---
+ lib/time.gemspec | 2 +-
+ lib/time.rb | 6 +++---
+ test/test_time.rb | 9 +++++++++
+ 3 files changed, 13 insertions(+), 4 deletions(-)
+
+diff --git a/lib/time.gemspec b/lib/time.gemspec
+index 72fba34..bada91a 100644
+--- a/lib/time.gemspec
++++ b/lib/time.gemspec
+@@ -1,6 +1,6 @@
+ Gem::Specification.new do |spec|
+ spec.name = "time"
+- spec.version = "0.2.0"
++ spec.version = "0.2.2"
+ spec.authors = ["Tanaka Akira"]
+ spec.email = ["akr@fsij.org"]
+
+diff --git a/lib/time.rb b/lib/time.rb
+index bd20a1a..6a13212 100644
+--- a/lib/time.rb
++++ b/lib/time.rb
+@@ -509,8 +509,8 @@ class Time
+ (Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)\s+
+ (\d{2,})\s+
+ (\d{2})\s*
+- :\s*(\d{2})\s*
+- (?::\s*(\d{2}))?\s+
++ :\s*(\d{2})
++ (?:\s*:\s*(\d\d))?\s+
+ ([+-]\d{4}|
+ UT|GMT|EST|EDT|CST|CDT|MST|MDT|PST|PDT|[A-IK-Z])/ix =~ date
+ # Since RFC 2822 permit comments, the regexp has no right anchor.
+@@ -701,7 +701,7 @@ class Time
+ #
+ # If self is a UTC time, Z is used as TZD. [+-]hh:mm is used otherwise.
+ #
+- # +fractional_digits+ specifies a number of digits to use for fractional
++ # +fraction_digits+ specifies a number of digits to use for fractional
+ # seconds. Its default value is 0.
+ #
+ # require 'time'
+diff --git a/test/test_time.rb b/test/test_time.rb
+index b50d841..23e8e10 100644
+--- a/test/test_time.rb
++++ b/test/test_time.rb
+@@ -62,6 +62,15 @@ class TestTimeExtension < Test::Unit::TestCase # :nodoc:
+ assert_equal(true, t.utc?)
+ end
+
++ def test_rfc2822_nonlinear
++ pre = ->(n) {"0 Feb 00 00 :00" + " " * n}
++ assert_linear_performance([100, 500, 5000, 50_000], pre: pre) do |s|
++ assert_raise(ArgumentError) do
++ Time.rfc2822(s)
++ end
++ end
++ end
++
+ if defined?(Ractor)
+ def test_rfc2822_ractor
+ assert_ractor(<<~RUBY, require: 'time')
+--
+2.25.1
+
@@ -29,6 +29,7 @@ SRC_URI = "http://cache.ruby-lang.org/pub/ruby/${SHRT_VER}/ruby-${PV}.tar.gz \
file://0005-Mark-Gemspec-reproducible-change-fixing-784225-too.patch \
file://0006-Make-gemspecs-reproducible.patch \
file://0001-vm_dump.c-Define-REG_S1-and-REG_S2-for-musl-riscv.patch \
+ file://CVE-2023-28756.patch \
"
UPSTREAM_CHECK_URI = "https://www.ruby-lang.org/en/downloads/"