Public bug reported:
Similar to bug 1760654.
But this time the test_072_strict_devmem passed on the testing node.
And the test_140_kernel_modules_not_tainted test still failed with the same
error message:
FAIL: test_140_kernel_modules_not_tainted (__main__.KernelSecurityTest)
kernel modules are not marked with a taint flag (especially 'E' for
TAINT_UNSIGNED_MODULE)
----------------------------------------------------------------------
Traceback (most recent call last):
File "./test-kernel-security.py", line 1865, in
test_140_kernel_modules_not_tainted
self.fail('Module \'%s\' is tainted: %s' % (fields[0], last_field))
AssertionError: Module 'signpost' is tainted: (OE)
If you try to remove the module after this, you will get:
$ sudo rmmod signpost
rmmod: ERROR: Module signpost is in use
And the lsmod shows:
$ lsmod | grep signpost
signpost 12288 -2
>From the Internet [1], the "-2" here indicates that the CONFIG_MODULE_UNLOAD
>is not set.
Which is true for the Bionic KVM kernel.
$ grep -i CONFIG_MODULE_UNLOAD debian.kvm/config/config.common.ubuntu
# CONFIG_MODULE_UNLOAD is not set
https://unix.stackexchange.com/questions/269500/lsmod-shows-2-in-the-
used-by-colum
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-4.15.0-1008-kvm 4.15.0-1008.8
ProcVersionSignature: User Name 4.15.0-1008.8-kvm 4.15.17
Uname: Linux 4.15.0-1008-kvm x86_64
NonfreeKernelModules: signpost
ApportVersion: 2.20.9-0ubuntu7
Architecture: amd64
Date: Wed Apr 25 08:35:29 2018
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=C.UTF-8
SHELL=/bin/bash
SourcePackage: linux-kvm
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: linux-kvm (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug bionic uec-images
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https://bugs.launchpad.net/bugs/1766832
Title:
test_140_kernel_modules_not_tainted in kernel security test failed
with 4.15 kvm kernel
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