I've reproduced this with the 4.15 linux-kvm kernel. I'm not sure why it's doing this, though:
ubuntu@sec-bionic-amd64:~$ sudo cat /proc/modules kvm_intel 200704 - - Live 0x0000000000000000 pata_acpi 12288 - - Live 0x0000000000000000 ubuntu@sec-bionic-amd64:~$ cat /proc/version_signature Ubuntu 4.15.0-1004.4-kvm 4.15.15 with the regular 4.15 kernel, on the same host: ubuntu@sec-bionic-amd64:~$ cat /proc/version_signature Ubuntu 4.15.0-15.16-generic 4.15.15 ubuntu@sec-bionic-amd64:~$ sudo head -5 /proc/modules nf_conntrack_netlink 40960 0 - Live 0xffffffffc05bb000 nf_conntrack 131072 1 nf_conntrack_netlink, Live 0xffffffffc058d000 libcrc32c 16384 1 nf_conntrack, Live 0xffffffffc0556000 nfnetlink 16384 6 nf_conntrack_netlink, Live 0xffffffffc054d000 snd_hda_codec_generic 73728 1 - Live 0xffffffffc0538000 Digging around in /sys/modules, it looks like the /proc/modules/MODULE/sections/ tree isn't present in linux-kvm, which is indicating that CONFIG_KALLSYMS is not set. I *think* this is the difference that is causing the /proc/modules addresses to always be zero, at least in the 4.15 kernel, but I haven't tracked down codepaths enough to ensure that's the case. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-kvm in Ubuntu. https://bugs.launchpad.net/bugs/1764980 Title: test_095_kernel_symbols_missing_proc_modules failed with 4.15 KVM kernel Status in QA Regression Testing: In Progress Status in linux package in Ubuntu: Invalid Status in linux-kvm package in Ubuntu: Incomplete Status in linux source package in Bionic: Invalid Status in linux-kvm source package in Bionic: Incomplete Bug description: test_095_kernel_symbols_missing_proc_modules from ubuntu_qrt_kernel_security test failed with 4.15.0-1004-kvm FAIL: test_095_kernel_symbols_missing_proc_modules (__main__.KernelSecurityTest) kernel addresses in /proc/modules are zeroed out ---------------------------------------------------------------------- Traceback (most recent call last): File "./test-kernel-security.py", line 1609, in test_095_kernel_symbols_missing_proc_modules self._check_pK_files(self._095_kernel_symbols_missing_proc_modules, expected=expected) File "./test-kernel-security.py", line 1492, in _check_pK_files test_function(expected_restricted) File "./test-kernel-security.py", line 1525, in _095_kernel_symbols_missing_proc_modules expected) File "./test-kernel-security.py", line 1414, in _read_twice self.assertFalse(0 == int(address, 16), "%s: root saw %s" % (filename, address)) AssertionError: /proc/modules: root saw 0x0000000000000000 ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-4.15.0-1004-kvm 4.15.0-1004.4 ProcVersionSignature: User Name 4.15.0-1004.4-kvm 4.15.15 Uname: Linux 4.15.0-1004-kvm x86_64 ApportVersion: 2.20.9-0ubuntu5 Architecture: amd64 Date: Wed Apr 18 09:00:43 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) To manage notifications about this bug go to: https://bugs.launchpad.net/qa-regression-testing/+bug/1764980/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
