diff --git a/lib/bundler/cli/exec.rb b/lib/bundler/cli/exec.rb
index 00e42c9b835..4371887f2ae 100644
--- a/lib/bundler/cli/exec.rb
+++ b/lib/bundler/cli/exec.rb
@@ -5,6 +5,8 @@ module Bundler
   class CLI::Exec
     attr_reader :options, :args, :cmd
 
+    RESERVED_SIGNALS = %w(SEGV BUS ILL FPE VTALRM KILL STOP).freeze
+
     def initialize(options, args)
       @options = options
       @cmd = args.shift
@@ -60,6 +62,8 @@ def kernel_load(file, *args)
       ui = Bundler.ui
       Bundler.ui = nil
       require "bundler/setup"
+      signals = Signal.list.keys - RESERVED_SIGNALS
+      signals.each {|s| trap(s, "DEFAULT") }
       Kernel.load(file)
     rescue SystemExit
       raise
diff --git a/spec/commands/console_spec.rb b/spec/commands/console_spec.rb
index b771c6a9406..b60ac2c9f63 100644
--- a/spec/commands/console_spec.rb
+++ b/spec/commands/console_spec.rb
@@ -12,7 +12,7 @@
   end
 
   it "starts IRB with the default group loaded" do
-    bundle "console" do |input|
+    bundle "console" do |input, _, _|
       input.puts("puts RACK")
       input.puts("exit")
     end
@@ -20,7 +20,7 @@
   end
 
   it "uses IRB as default console" do
-    bundle "console" do |input|
+    bundle "console" do |input, _, _|
       input.puts("__method__")
       input.puts("exit")
     end
@@ -34,7 +34,7 @@
     G
     bundle "config console pry"
 
-    bundle "console" do |input|
+    bundle "console" do |input, _, _|
       input.puts("__method__")
       input.puts("exit")
     end
@@ -45,7 +45,7 @@
     bundle "config console pry"
     # make sure pry isn't there
 
-    bundle "console" do |input|
+    bundle "console" do |input, _, _|
       input.puts("__method__")
       input.puts("exit")
     end
@@ -53,7 +53,7 @@
   end
 
   it "doesn't load any other groups" do
-    bundle "console" do |input|
+    bundle "console" do |input, _, _|
       input.puts("puts ACTIVESUPPORT")
       input.puts("exit")
     end
@@ -62,7 +62,7 @@
 
   describe "when given a group" do
     it "loads the given group" do
-      bundle "console test" do |input|
+      bundle "console test" do |input, _, _|
         input.puts("puts ACTIVESUPPORT")
         input.puts("exit")
       end
@@ -70,7 +70,7 @@
     end
 
     it "loads the default group" do
-      bundle "console test" do |input|
+      bundle "console test" do |input, _, _|
         input.puts("puts RACK")
         input.puts("exit")
       end
@@ -78,7 +78,7 @@
     end
 
     it "doesn't load other groups" do
-      bundle "console test" do |input|
+      bundle "console test" do |input, _, _|
         input.puts("puts RACK_MIDDLEWARE")
         input.puts("exit")
       end
@@ -96,7 +96,7 @@
     G
 
     bundle "config auto_install 1"
-    bundle :console do |input|
+    bundle :console do |input, _, _|
       input.puts("puts 'hello'")
       input.puts("exit")
     end
diff --git a/spec/commands/exec_spec.rb b/spec/commands/exec_spec.rb
index 52b59e5cdeb..25b240b0a99 100644
--- a/spec/commands/exec_spec.rb
+++ b/spec/commands/exec_spec.rb
@@ -544,5 +544,32 @@ def bin_path(a,b,c)
 
       it_behaves_like "it runs"
     end
+
+    context "signals being trapped by bundler" do
+      let(:executable) { strip_whitespace <<-RUBY }
+        #{shebang}
+        begin
+          Thread.new do
+            puts 'Started' # For process sync
+            STDOUT.flush
+            sleep 1 # ignore quality_spec
+            raise "Didn't receive INT at all"
+          end.join
+        rescue Interrupt
+          puts "foo"
+        end
+      RUBY
+
+      it "receives the signal" do
+        skip "popen3 doesn't provide a way to get pid " unless RUBY_VERSION >= "1.9.3"
+
+        bundle("exec #{path}") do |_, o, thr|
+          o.gets # Consumes 'Started' and ensures that thread has started
+          Process.kill("INT", thr.pid)
+        end
+
+        expect(out).to eq("foo")
+      end
+    end
   end
 end
diff --git a/spec/commands/newgem_spec.rb b/spec/commands/newgem_spec.rb
index 6414a0902e8..cb3c48132a9 100644
--- a/spec/commands/newgem_spec.rb
+++ b/spec/commands/newgem_spec.rb
@@ -743,7 +743,7 @@ def create_temporary_dir(dir)
     it "asks about test framework" do
       global_config "BUNDLE_GEM__MIT" => "false", "BUNDLE_GEM__COC" => "false"
 
-      bundle "gem foobar" do |input|
+      bundle "gem foobar" do |input, _, _|
         input.puts "rspec"
       end
 
@@ -766,7 +766,7 @@ def create_temporary_dir(dir)
 
       bundle :config
 
-      bundle "gem foobar" do |input|
+      bundle "gem foobar" do |input, _, _|
         input.puts "yes"
       end
 
@@ -776,7 +776,7 @@ def create_temporary_dir(dir)
     it "asks about CoC" do
       global_config "BUNDLE_GEM__MIT" => "false", "BUNDLE_GEM__TEST" => "false"
 
-      bundle "gem foobar" do |input|
+      bundle "gem foobar" do |input, _, _|
         input.puts "yes"
       end
 
diff --git a/spec/commands/open_spec.rb b/spec/commands/open_spec.rb
index 1776eed6e93..8ae18cea6a8 100644
--- a/spec/commands/open_spec.rb
+++ b/spec/commands/open_spec.rb
@@ -60,7 +60,7 @@
 
   it "select the gem from many match gems" do
     env = { "EDITOR" => "echo editor", "VISUAL" => "echo visual", "BUNDLER_EDITOR" => "echo bundler_editor" }
-    bundle "open active", :env => env do |input|
+    bundle "open active", :env => env do |input, _, _|
       input.puts "2"
     end
 
diff --git a/spec/other/platform_spec.rb b/spec/other/platform_spec.rb
index a219853e2fa..c0d121c7b15 100644
--- a/spec/other/platform_spec.rb
+++ b/spec/other/platform_spec.rb
@@ -929,7 +929,7 @@ def should_be_patchlevel_fixnum
         #{ruby_version_correct}
       G
 
-      bundle "console" do |input|
+      bundle "console" do |input, _, _|
         input.puts("puts RACK")
         input.puts("exit")
       end
@@ -947,7 +947,7 @@ def should_be_patchlevel_fixnum
           #{ruby_version_correct_engineless}
         G
 
-        bundle "console" do |input|
+        bundle "console" do |input, _, _|
           input.puts("puts RACK")
           input.puts("exit")
         end
diff --git a/spec/quality_spec.rb b/spec/quality_spec.rb
index d5178d73be4..41f7d58425b 100644
--- a/spec/quality_spec.rb
+++ b/spec/quality_spec.rb
@@ -28,7 +28,9 @@ def check_for_debugging_mechanisms(filename)
 
     failing_lines = []
     File.readlines(filename).each_with_index do |line, number|
-      failing_lines << number + 1 if line =~ debugging_mechanisms_regex
+      if line =~ debugging_mechanisms_regex && !line.end_with?("# ignore quality_spec\n")
+        failing_lines << number + 1
+      end
     end
 
     return if failing_lines.empty?
@@ -200,7 +202,7 @@ def check_for_specific_pronouns(filename)
       lib_files = `git ls-files -z`.split("\x0").grep(/\.rb$/) - exclusions
       lib_files.reject! {|f| f.start_with?("bundler/vendor") }
       lib_files.map! {|f| f.chomp(".rb") }
-      sys_exec("ruby -w -I. ", :expect_err) do |input|
+      sys_exec("ruby -w -I. ", :expect_err) do |input, _, _|
         lib_files.each do |f|
           input.puts "require '#{f}'"
         end
diff --git a/spec/support/helpers.rb b/spec/support/helpers.rb
index d0947272070..f06c488c42b 100644
--- a/spec/support/helpers.rb
+++ b/spec/support/helpers.rb
@@ -98,7 +98,7 @@ def bundle(cmd, options = {})
       end.join
 
       cmd = "#{env} #{sudo} #{Gem.ruby} -I#{lib}:#{spec} #{requires_str} #{bundle_bin} #{cmd}#{args}"
-      sys_exec(cmd, expect_err) {|i| yield i if block_given? }
+      sys_exec(cmd, expect_err) {|i, o, thr| yield i, o, thr if block_given? }
     end
     bang :bundle
 
@@ -116,7 +116,7 @@ def bundle_ruby(options = {})
       env = (options.delete(:env) || {}).map {|k, v| "#{k}='#{v}' " }.join
       cmd = "#{env}#{Gem.ruby} -I#{lib} #{requires_str} #{bundle_bin}"
 
-      sys_exec(cmd, expect_err) {|i| yield i if block_given? }
+      sys_exec(cmd, expect_err) {|i, o, thr| yield i, o, thr if block_given? }
     end
 
     def ruby(ruby, options = {})
@@ -151,7 +151,7 @@ def gembin(cmd)
 
     def sys_exec(cmd, expect_err = false)
       Open3.popen3(cmd.to_s) do |stdin, stdout, stderr, wait_thr|
-        yield stdin if block_given?
+        yield stdin, stdout, wait_thr if block_given?
         stdin.close
 
         @out = Thread.new { stdout.read }.value.strip