test_sysctl in bpf from ubuntu_kernel_selftests make net test fails to build on eoan

This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:

apport-collect 1862263

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

To be clear, it's the bpf test that's causing this problem.

gcc -g -Wall -O2 -I../../../include/uapi -I../../../lib -I../../../lib/bpf -I../../../../include/generated -I../../../include -Dbpf_prog_load=bpf_prog_test_load -Dbpf_load_program=bpf_test_load_program test_tcpnotify_user.c /home/ubuntu/ubuntu-eoan/tools/testing/selftests/bpf/test_stub.o /home/ubuntu/ubuntu-eoan/tools/testing/selftests/bpf/libbpf.a cgroup_helpers.c trace_helpers.c -lcap -lelf -lrt -lpthread -o /home/ubuntu/ubuntu-eoan/tools/testing/selftests/bpf/test_tcpnotify_user
test_tcpnotify_user.c: In function ‘main’:
test_tcpnotify_user.c:153:2: warning: ignoring return value of ‘system’, declared with attribute warn_unused_result [-Wunused-result]
  153 | system(test_script);
      | ^~~~~~~~~~~~~~~~~~~
test_tcpnotify_user.c:158:2: warning: ignoring return value of ‘system’, declared with attribute warn_unused_result [-Wunused-result]
  158 | system(test_script);
      | ^~~~~~~~~~~~~~~~~~~
test_tcpnotify_user.c:163:2: warning: ignoring return value of ‘system’, declared with attribute warn_unused_result [-Wunused-result]
  163 | system(test_script);
      | ^~~~~~~~~~~~~~~~~~~
gcc -g -Wall -O2 -I../../../include/uapi -I../../../lib -I../../../lib/bpf -I../../../../include/generated -I../../../include -Dbpf_prog_load=bpf_prog_test_load -Dbpf_load_program=bpf_test_load_program test_sock_fields.c /home/ubuntu/ubuntu-eoan/tools/testing/selftests/bpf/test_stub.o /home/ubuntu/ubuntu-eoan/tools/testing/selftests/bpf/libbpf.a cgroup_helpers.c -lcap -lelf -lrt -lpthread -o /home/ubuntu/ubuntu-eoan/tools/testing/selftests/bpf/test_sock_fields
gcc -g -Wall -O2 -I../../../include/uapi -I../../../lib -I../../../lib/bpf -I../../../../include/generated -I../../../include -Dbpf_prog_load=bpf_prog_test_load -Dbpf_load_program=bpf_test_load_program test_sysctl.c /home/ubuntu/ubuntu-eoan/tools/testing/selftests/bpf/test_stub.o /home/ubuntu/ubuntu-eoan/tools/testing/selftests/bpf/libbpf.a cgroup_helpers.c -lcap -lelf -lrt -lpthread -o /home/ubuntu/ubuntu-eoan/tools/testing/selftests/bpf/test_sysctl
test_sysctl.c:181:4: error: ‘struct sysctl_test’ has no member named ‘seek’
  181 | .seek = 4,
      | ^~~~
test_sysctl.c:181:11: warning: initialization of ‘const char *’ from ‘int’ makes pointer from integer without a cast [-Wint-conversion]
  181 | .seek = 4,
      | ^
test_sysctl.c:181:11: note: (near initialization for ‘tests[7].newval’)
make[1]: *** [../lib.mk:138: /home/ubuntu/ubuntu-eoan/tools/testing/selftests/bpf/test_sysctl] Error 1
make[1]: Leaving directory '/home/ubuntu/ubuntu-eoan/tools/testing/selftests/bpf'
make: *** [Makefile:137: all] Error 2

We need some module in bpf, so this was triggered in the beginning of the net test.

Looks like this is missing commit:
https://github.com/torvalds/linux/commit/d895a0f16fadb26d22ab531c49768f7642ae5c3e

This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-eoan' to 'verification-done-eoan'. If the problem still exists, change the tag 'verification-needed-eoan' to 'verification-failed-eoan'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

Passed on node rizzo with 5.3.0-41.33

This bug was fixed in the package linux - 5.3.0-42.34

---------------
linux (5.3.0-42.34) eoan; urgency=medium

  * eoan/linux: 5.3.0-42.34 -proposed tracker (LP: #1865111)

  * CVE-2020-2732
    - KVM: nVMX: Don't emulate instructions in guest mode
    - KVM: nVMX: Refactor IO bitmap checks into helper function
    - KVM: nVMX: Check IO instruction VM-exit conditions

linux (5.3.0-41.33) eoan; urgency=medium

  * eoan/linux: 5.3.0-41.33 -proposed tracker (LP: #1863294)

  * CVE-2019-3016
    - x86/kvm: Be careful not to clear KVM_VCPU_FLUSH_TLB bit
    - x86/kvm: Introduce kvm_(un)map_gfn()
    - x86/kvm: Cache gfn to pfn translation
    - x86/KVM: Make sure KVM_VCPU_FLUSH_TLB flag is not missed
    - x86/KVM: Clean up host's steal time structure

  * Reduce s2idle power consumption when ethernet cable is connected on e1000e
    (LP: #1859126)
    - e1000e: Add support for S0ix

  * alsa/sof: let legacy hda driver and sof driver co-exist (LP: #1837828)
    - ASoC: Intel: Skylake: move NHLT header to common directory
    - ALSA: hda: move parts of NHLT code to new module
    - ALSA: hda: intel-nhlt: handle NHLT VENDOR_DEFINED DMIC geometry
    - ASoC: Intel: Skylake: use common NHLT module
    - ALSA: hda/intel: stop probe if DMICS are detected on Skylake+ platforms
    - [Config] Enable SND_HDA_INTEL_DETECT_DMIC

  * USB key cannot be detected by hotplug on Sunix USB Type-A 3.1 Gen 2 card
    [1b21:2142] (LP: #1858988)
    - SAUCE: PCI: Avoid ASMedia XHCI USB PME# from D0 defect

  * ipsec interfaces: fix sending with bpf_redirect() / AF_PACKET sockets
    (LP: #1860969)
    - vti[6]: fix packet tx through bpf_redirect()
    - xfrm interface: fix packet tx through bpf_redirect()

  * peripheral devices on Dell WD19TB cannot be detected after suspend resume
    (LP: #1859407)
    - PCI: irq: Introduce rearm_wake_irq()
    - ACPICA: Return u32 from acpi_dispatch_gpe()
    - ACPI: EC: Return bool from acpi_ec_dispatch_gpe()
    - ACPI: PM: Set s2idle_wakeup earlier and clear it later
    - PM: sleep: Simplify suspend-to-idle control flow
    - ACPI: EC: Rework flushing of pending work

  * Dell XPS 13 (7390) Display Flickering - 19.10 (LP: #1849947)
    - SAUCE: drm/i915: Disable PSR by default on all platforms

  * Root can lift kernel lockdown via USB/IP (LP: #1861238)
    - Revert "UBUNTU: SAUCE: (efi-lockdown) Add a SysRq option to lift kernel
      lockdown"

  * [CML-H] Add intel_thermal_pch driver support Comet Lake -H (LP: #1853219)
    - thermal: intel: intel_pch_thermal: Add Comet Lake (CML) platform support

  * Eoan update: upstream stable patchset 2020-02-07 (LP: #1862429)
    - ARM: dts: meson8: fix the size of the PMU registers
    - clk: qcom: gcc-sdm845: Add missing flag to votable GDSCs
    - dt-bindings: reset: meson8b: fix duplicate reset IDs
    - ARM: dts: imx6q-dhcom: fix rtc compatible
    - clk: Don't try to enable critical clocks if prepare failed
    - ASoC: msm8916-wcd-digital: Reset RX interpolation path after use
    - iio: buffer: align the size of scan bytes to size of the largest element
    - USB: serial: simple: Add Motorola Solutions TETRA MTP3xxx and MTP85xx
    - USB: serial: option: Add support for Quec...