47 lines
591 B
C++
47 lines
591 B
C++
#include <mutex>
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class some_data {
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int a;
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std::string b;
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public:
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void do_something() {}
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};
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class data_wrapper {
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private:
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some_data data;
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std::mutex m;
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public:
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template <typename Function>
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void process_data(Function func)
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{
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std::lock_guard<std::mutex> l(m);
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func(data);
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}
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};
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some_data* unprotected;
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void
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malicious_function(some_data& protected_data)
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{
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unprotected = &protected_data;
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}
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data_wrapper x;
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void
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foo()
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{
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x.process_data(malicious_function);
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unprotected->do_something();
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}
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int
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main()
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{
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foo();
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}
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