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c52b600dbe
The threads and cpus parameters in parse_events and parse_metrics are parsed with the 'O' format specifier but blindly casted in the C extension. If a user passes an invalid object type, this leads to memory corruption when dereferencing the expected struct. Add runtime PyObject_TypeCheck validations in python.c to safely raise a TypeError if an invalid object is passed. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alice Rogers <alice.mei.rogers@gmail.com> Cc: Dapeng Mi <dapeng1.mi@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Leo Yan <leo.yan@linux.dev> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Richter <tmricht@linux.ibm.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org>