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Bug #15262
ยป adder-test2.rb
Simplified version of the initial exploit -
larskanis (Lars Kanis)
, 10/29/2018 08:34 AM
require
"weakref"
Thread
.
abort_on_exception
=
true
class
Adder
def
self
.
start_adder
(
obj
)
obj
.
add
end
def
initialize
@qu
=
Queue
.
new
count
=
10
count
.
times
do
Thread
.
new
(
WeakRef
.
new
(
self
),
&
self
.
class
.
method
(
:start_adder
))
end
count
.
times
do
@qu
.
deq
end
end
def
add
@qu
.
enq
true
end
end
def
test_adder
10
.
times
.
map
do
Thread
.
new
do
Adder
.
new
end
end
.
each
(
&
:join
)
end
100
.
times
do
test_adder
end
(1-1/1)
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