** Also affects: linux-kvm (Ubuntu Bionic)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1766780
Title:
test_250_config_security_perf_events_restrict in kernel security test
failed with 4.15 KVM kernel
Status in ubuntu-kernel-tests:
Fix Committed
Status in linux-kvm package in Ubuntu:
Fix Committed
Status in linux-kvm source package in Bionic:
New
Bug description:
== Justification ==
In the Bionic KVM kernel, the CONFIG_FORTIFY_SOURCE and
CONFIG_SECURITY_PERF_EVENTS_RESTRICT were not set, they need to be enabled to
meet the security team's requirement.
== Test ==
Before enabling the config, test case test_190_config_kernel_fortify and
test_250_config_security_perf_events_restrict will fail in the kernel
security testsuite for the kernel SRU regression test.
It will pass with these two patches applied, tested on a KVM node.
== Fix ==
Set CONFIG_SECURITY_PERF_EVENTS_RESTRICT to "y".
Set CONFIG_FORTIFY_SOURCE to "y".
== Regression Potential ==
Minimal.
No code changes, just two config changes without disabling any other configs.
BugLink: https://bugs.launchpad.net/bugs/1766780
BugLink: https://bugs.launchpad.net/bugs/1766774
--------------------------------------------------
test_250_config_security_perf_events_restrict from the kernel security test
suite failed with 4.15.0-1008 KVM kernel.
FAIL: test_250_config_security_perf_events_restrict
(__main__.KernelSecurityTest)
Ensure CONFIG_SECURITY_PERF_EVENTS_RESTRICT is set
----------------------------------------------------------------------
Traceback (most recent call last):
File "./test-kernel-security.py", line 2313, in
test_250_config_security_perf_events_restrict
self.assertEqual(expected, self._test_config(config_name))
AssertionError: True != False
The CONFIG_SECURITY_PERF_EVENTS_RESTRICT is not set.
$ cat /boot/config-4.15.0-1008-kvm | grep CONFIG_SECURITY_PERF_EVENTS_RESTRICT
# CONFIG_SECURITY_PERF_EVENTS_RESTRICT is not set
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 04:41:49 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)
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