ubuntu_qrt_kernel_security:test-kernel-security.py:test_140: Tainted module(zzstd) found on s390x

[Stefan Bader]

This is like in the log checks for the boot test. Because s390x nodes are not deployed but used from a pre-defined state, there are left-over config files which cause ZFS to be loaded at boot. The zzstd in a ZFS module in the 2.x series.

FAIL: test_140_kernel_modules_not_tainted (__main__.KernelSecurityTest)
kernel modules are not marked with a taint flag (especially 'E' for TAINT_UNSIGNED_MODULE)
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Traceback (most recent call last):
File "./test-kernel-security.py", line 1652, in test_140_kernel_modules_not_tainted
self.fail('Module \'%s\' is tainted: %s' % (fields[0], last_field))
AssertionError: Module 'zzstd' is tainted: (O)