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In 70366a2, I introduced a test case for test-mok-mirror to test the behavior when SetVariable() gives EFI_OUT_OF_RESOURCES. Unfortunately this includes a memory error in its cleanup functions:
==1972634== Invalid read of size 8
==1972634== at 0x4032F3: mock_sv_adjust_usage_data (mock-variables.c:468)
==1972634== by 0x40387B: mock_delete_variable (mock-variables.c:541)
==1972634== by 0x4014E8: mock_reset_variables (mock-variables.c:1353)
==1972634== by 0x401348: mock_finalize_vars_and_configs (mock-variables.c:1405)
==1972634== by 0x401731: main (test-mok-mirror.c:688)
==1972634== Address 0x1ffeffc4f8 is on thread 1's stack
==1972634== 6784 bytes below stack pointer
This is caused because the test data uses a linked-list data structure in an array in the test data, and we try to iterate the list to free the data, but of course the list pointers aren't initialized because it's an array.
Whoops.
This patch makes it so we don't try to clean up that list, because we don't need to.