selftests: bpf: test_verifier fixes

[Thadeu Lima de Souza Cascardo]

[Impact]
kselftest bpf ./test_verifier fails on bionic, preventing regression from being identified.

[Test case]
Run selftest bpf ./test_verifier and check that it passes.

[Potential regressions]
The test could still fail or crash the kernel.

[Thadeu Lima de Souza Cascardo (cascardo)]

Backport of mainline commit d7a5091351756d0ae8e63134313c455624e36a13 ("bpf: Update selftests to reflect new error states") is needed. The v4.14.y version, bb53b0a9798abf96a7a43ba0701d37b1ab038e58, should apply cleanly. Kamal has a working backport that reduces the number of failures from 23 to 2.

Then, commit 1bad6fd52be4ce12d207e2820ceb0f29ab31fc53 ("bpf, selftests: Adjust few selftest result_unpriv outcomes") needs to be backported as well.

Then, one small update to the backport of d7a509135175, due to our sauce commit 0950405884128, which was added upstream at commit 80c9b2fae87bb5c5698940da1a981f14f89518d1.

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

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-bionic' to 'verification-done-bionic'. If the problem still exists, change the tag 'verification-needed-bionic' to 'verification-failed-bionic'.

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!

[Thadeu Lima de Souza Cascardo (cascardo)]

4.15.0-150-generic
Summary: 802 PASSED, 0 FAILED

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux - 4.15.0-151.157

---------------
linux (4.15.0-151.157) bionic; urgency=medium

  * CVE-2021-33909
    - SAUCE: seq_file: Disallow extremely large seq buffer allocations

linux (4.15.0-150.155) bionic; urgency=medium

  * bionic/linux: 4.15.0-150.155 -proposed tracker (LP: #1934374)

  * lxd exec fails (LP: #1934187)
    - SAUCE: Revert "proc: Check /proc/$pid/attr/ writes against file opener"

linux (4.15.0-149.153) bionic; urgency=medium

  * bionic/linux: 4.15.0-149.153 -proposed tracker (LP: #1933434)

  * selftests: bpf: test_verifier fixes (LP: #1933385)
    - bpf: Update selftests to reflect new error states
    - bpf, selftests: Adjust few selftest result_unpriv outcomes

  * CVE-2021-33200
    - bpf: Fix mask direction swap upon off reg sign change

linux (4.15.0-148.152) bionic; urgency=medium

  * bionic/linux: 4.15.0-148.152 -proposed tracker (LP: #1932515)

  * Packaging resync (LP: #1786013)
    - update dkms package versions

  * Upstream v5.9 introduced 'module' patches that removed exported symbols
    (LP: #1932065)
    - SAUCE: Revert "modules: inherit TAINT_PROPRIETARY_MODULE"
    - SAUCE: Revert "modules: return licensing information from find_symbol"
    - SAUCE: Revert "modules: rename the licence field in struct symsearch to
      license"
    - SAUCE: Revert "modules: unexport __module_address"
    - SAUCE: Revert "modules: unexport __module_text_address"
    - SAUCE: Revert "modules: mark each_symbol_section static"
    - SAUCE: Revert "modules: mark find_symbol static"
    - SAUCE: Revert "modules: mark ref_module static"

  * Disable hv-kvp-daemon.service on certain instance types (LP: #1932081)
    - [Packaging]: Add kernel command line condition to hv-kvp-daemon service

  * Bionic update: upstream stable patchset 2021-06-11 (LP: #1931740)
    - openrisc: Fix a memory leak
    - RDMA/rxe: Clear all QP fields if creation failed
    - scsi: qla2xxx: Fix error return code in qla82xx_write_flash_dword()
    - ptrace: make ptrace() fail if the tracee changed its pid unexpectedly
    - cifs: fix memory leak in smb2_copychunk_range
    - ALSA: line6: Fix racy initialization of LINE6 MIDI
    - ALSA: usb-audio: Validate MS endpoint descriptors
    - ALSA: bebob/oxfw: fix Kconfig entry for Mackie d.2 Pro
    - Revert "ALSA: sb8: add a check for request_region"
    - Revert "rapidio: fix a NULL pointer dereference when create_workqueue()
      fails"
    - rapidio: handle create_workqueue() failure
    - xen-pciback: reconfigure also from backend watch handler
    - dm snapshot: fix crash with transient storage and zero chunk size
    - Revert "video: hgafb: fix potential NULL pointer dereference"
    - Revert "net: stmicro: fix a missing check of clk_prepare"
    - Revert "leds: lp5523: fix a missing check of return value of lp55xx_read"
    - Revert "hwmon: (lm80) fix a missing check of bus read in lm80 probe"
    - Revert "video: imsttfb: fix potential NULL pointer dereferences"
    - Revert "ecryptfs: replace BUG_ON with error handling code"
    - Revert "gdrom: fix a memory leak bug"
    - cdrom: gdrom: deallocate struct gdrom_unit fields in remove_gdrom
    - cdrom: gdrom: ini...