False positive test result in run_netsocktests from net in ubuntu_kernel_selftest

https://github.com/torvalds/linux/commit/30c04d796b693e22405c38e9b78e9a364e4c77e6

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

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!

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!

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

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!

Verified on X-amd64, the test itself has passed, and the final result is passed as well.

Verified on B-amd64, the test itself has passed, and the final result is passed as well.

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

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!

Re-triggered a variety of cloud jobs that have failed due to this bug. will verify passed on Cosmic

Verified with Cosmic, failing as expected.

Note that this fix is to allow the run_netsocktests to fail correctly:
 selftests: net: run_netsocktests
 ========================================
 --------------------
 running socket test
 --------------------
 [FAIL]
 not ok 1..6 selftests: net: run_netsocktests [FAIL]

Was:
    selftests: net: run_netsocktests
    ========================================
    --------------------
    running socket test
    --------------------
    [FAIL]
    ok 1..6 selftests: net: run_netsocktests [PASS]

Issue for run_netsocktests will be addressed here: bug 1830016

On disco the ubuntu_kernel_selftest.net testcase is failing to compile (bug 1829812), so we are not able to verify it.

This bug was fixed in the package linux - 4.4.0-150.176

---------------
linux (4.4.0-150.176) xenial; urgency=medium

  * linux: 4.4.0-150.176 -proposed tracker (LP: #1830941)

  * glibc 2.23-0ubuntu11 ADT test failure with linux 4.4.0-149.175
    (LP: #1830890)
    - x86/vdso: Pass --eh-frame-hdr to the linker

linux (4.4.0-149.175) xenial; urgency=medium

  * linux: 4.4.0-149.175 -proposed tracker (LP: #1829209)

  * disable a.out support (LP: #1818552)
    - [Config] Disable a.out support

  * autopkgtests run too often, too much and don't skip enough (LP: #1823056)
    - [Debian] Set +x on rebuild testcase.
    - [Debian] Skip rebuild test, for regression-suite deps.
    - [Debian] Make ubuntu-regression-suite skippable on unbootable kernels.
    - [Debian] make rebuild use skippable error codes when skipping.
    - [Debian] Only run regression-suite, if requested to.

  * Xenial update: 4.4.179 upstream stable release (LP: #1828420)
    - arm64: debug: Don't propagate UNKNOWN FAR into si_code for debug signals
    - arm64: debug: Ensure debug handlers check triggering exception level
    - ext4: cleanup bh release code in ext4_ind_remove_space()
    - lib/int_sqrt: optimize initial value compute
    - tty/serial: atmel: Add is_half_duplex helper
    - mm: mempolicy: make mbind() return -EIO when MPOL_MF_STRICT is specified
    - i2c: core-smbus: prevent stack corruption on read I2C_BLOCK_DATA
    - Bluetooth: Fix decrementing reference count twice in releasing socket
    - tty/serial: atmel: RS485 HD w/DMA: enable RX after TX is stopped
    - CIFS: fix POSIX lock leak and invalid ptr deref
    - h8300: use cc-cross-prefix instead of hardcoding h8300-unknown-linux-
    - tracing: kdb: Fix ftdump to not sleep
    - gpio: gpio-omap: fix level interrupt idling
    - sysctl: handle overflow for file-max
    - enic: fix build warning without CONFIG_CPUMASK_OFFSTACK
    - mm/cma.c: cma_declare_contiguous: correct err handling
    - mm/page_ext.c: fix an imbalance with kmemleak
    - mm/vmalloc.c: fix kernel BUG at mm/vmalloc.c:512!
    - mm/slab.c: kmemleak no scan alien caches
    - ocfs2: fix a panic problem caused by o2cb_ctl
    - f2fs: do not use mutex lock in atomic context
    - fs/file.c: initialize init_files.resize_wait
    - cifs: use correct format characters
    - dm thin: add sanity checks to thin-pool and external snapshot creation
    - cifs: Fix NULL pointer dereference of devname
    - fs: fix guard_bio_eod to check for real EOD errors
    - tools lib traceevent: Fix buffer overflow in arg_eval
    - usb: chipidea: Grab the (legacy) USB PHY by phandle first
    - scsi: core: replace GFP_ATOMIC with GFP_KERNEL in scsi_scan.c
    - coresight: etm4x: Add support to enable ETMv4.2
    - ARM: 8840/1: use a raw_spinlock_t in unwind
    - mmc: omap: fix the maximum timeout setting
    - e1000e: Fix -Wformat-truncation warnings
    - IB/mlx4: Increase the timeout for CM cache
    - scsi: megaraid_sas: return error when create DMA pool failed
    - perf test: Fix failure of 'evsel-tp-sched' test on s390
    - SoC: imx-sgtl5000: add missing put_device()
    - media: sh_veu: Correct return type for mem2mem buffer helpers
    - media: s5...

This bug was fixed in the package linux - 5.0.0-16.17

---------------
linux (5.0.0-16.17) disco; urgency=medium

  * linux: 5.0.0-16.17 -proposed tracker (LP: #1829173)

  * shiftfs: lock security sensitive superblock flags (LP: #1827122)
    - SAUCE: shiftfs: lock down certain superblock flags

  * Please package libbpf (which is done out of the kernel src) in Debian [for
    19.10] (LP: #1826410)
    - SAUCE: tools -- fix add ability to disable libbfd

  * Disco update: 5.0.8 upstream stable release (LP: #1828415)
    - drm/i915/gvt: do not let pin count of shadow mm go negative
    - kbuild: pkg: use -f $(srctree)/Makefile to recurse to top Makefile
    - netfilter: nft_compat: use .release_ops and remove list of extension
    - netfilter: nf_tables: use-after-free in dynamic operations
    - netfilter: nf_tables: add missing ->release_ops() in error path of newrule()
    - hv_netvsc: Fix unwanted wakeup after tx_disable
    - ibmvnic: Fix completion structure initialization
    - ip6_tunnel: Match to ARPHRD_TUNNEL6 for dev type
    - ipv6: Fix dangling pointer when ipv6 fragment
    - ipv6: sit: reset ip header pointer in ipip6_rcv
    - kcm: switch order of device registration to fix a crash
    - net: ethtool: not call vzalloc for zero sized memory request
    - net-gro: Fix GRO flush when receiving a GSO packet.
    - net/mlx5: Decrease default mr cache size
    - netns: provide pure entropy for net_hash_mix()
    - net: rds: force to destroy connection if t_sock is NULL in
      rds_tcp_kill_sock().
    - net/sched: act_sample: fix divide by zero in the traffic path
    - net/sched: fix ->get helper of the matchall cls
    - qmi_wwan: add Olicard 600
    - r8169: disable ASPM again
    - sctp: initialize _pad of sockaddr_in before copying to user memory
    - tcp: Ensure DCTCP reacts to losses
    - tcp: fix a potential NULL pointer dereference in tcp_sk_exit
    - vrf: check accept_source_route on the original netdevice
    - net/mlx5e: Fix error handling when refreshing TIRs
    - net/mlx5e: Add a lock on tir list
    - nfp: validate the return code from dev_queue_xmit()
    - nfp: disable netpoll on representors
    - bnxt_en: Improve RX consumer index validity check.
    - bnxt_en: Reset device on RX buffer errors.
    - net: ip_gre: fix possible use-after-free in erspan_rcv
    - net: ip6_gre: fix possible use-after-free in ip6erspan_rcv
    - net: bridge: always clear mcast matching struct on reports and leaves
    - net: thunderx: fix NULL pointer dereference in nicvf_open/nicvf_stop
    - net: vrf: Fix ping failed when vrf mtu is set to 0
    - net: core: netif_receive_skb_list: unlist skb before passing to pt->func
    - r8169: disable default rx interrupt coalescing on RTL8168
    - net: mlx5: Add a missing check on idr_find, free buf
    - net/mlx5e: Update xoff formula
    - net/mlx5e: Update xon formula
    - kbuild: clang: choose GCC_TOOLCHAIN_DIR not on LD
    - lib/string.c: implement a basic bcmp
    - Revert "clk: meson: clean-up clock registration"
    - tty: mark Siemens R3964 line discipline as BROKEN
    - [Config]: remove CONFIG_R3964
    - [Config]: add CONFIG_LDISC_AUTOLOAD=y
    - tty: ldisc: add sysctl to p...

This bug was fixed in the package linux - 4.15.0-51.55

---------------
linux (4.15.0-51.55) bionic; urgency=medium

  * linux: 4.15.0-51.55 -proposed tracker (LP: #1829219)

  * disable a.out support (LP: #1818552)
    - [Config] Disable a.out support

  * [UBUNTU] qdio: clear intparm during shutdown (LP: #1828394)
    - s390/qdio: clear intparm during shutdown

  * ftrace in ubuntu_kernel_selftests hang with Cosmic kernel (LP: #1826385)
    - kprobes/x86: Fix instruction patching corruption when copying more than one
      RIP-relative instruction

  * touchpad not working on lenovo yoga 530 (LP: #1787775)
    - Revert "UBUNTU: SAUCE: i2c:amd Depends on ACPI"
    - Revert "UBUNTU: SAUCE: i2c:amd move out pointer in union i2c_event_base"
    - Revert "UBUNTU: SAUCE: i2c:amd I2C Driver based on PCI Interface for
      upcoming platform"
    - i2c: add helpers to ease DMA handling
    - i2c: add a message flag for DMA safe buffers
    - i2c: add extra check to safe DMA buffer helper
    - i2c: Add drivers for the AMD PCIe MP2 I2C controller
    - [Config] Update config for AMD MP2 I2C driver
    - [Config] Update I2C_AMD_MP2 annotations

  * tm-unavailable in powerpc/tm failed on Bionic Power9 (LP: #1813129)
    - selftests/powerpc: Check for pthread errors in tm-unavailable
    - selftests/powerpc: Skip tm-unavailable if TM is not enabled

  * cp_abort in powerpc/context_switch from ubunut_kernel_selftests failed on
    Bionic P9 (LP: #1813134)
    - selftests/powerpc: Remove redundant cp_abort test

  * bionic/linux: completely remove snapdragon files from sources (LP: #1827880)
    - [Packaging] remove snapdragon dead files
    - [Config] update configs after snapdragon removal

  * The noise keeps occurring when Headset is plugged in on a Dell machine
    (LP: #1827972)
    - ALSA: hda/realtek - Fixed Dell AIO speaker noise

  * Geneve tunnels don't work when ipv6 is disabled (LP: #1794232)
    - geneve: correctly handle ipv6.disable module parameter

  * There are 4 HDMI/Displayport audio output listed in sound setting without
    attach any HDMI/DP monitor (LP: #1827967)
    - ALSA: hda/hdmi - Read the pin sense from register when repolling
    - ALSA: hda/hdmi - Consider eld_valid when reporting jack event

  * Headphone jack switch sense is inverted: plugging in headphones disables
    headphone output (LP: #1824259)
    - ASoC: rt5645: Headphone Jack sense inverts on the LattePanda board

  * CTAUTO:DevOps:860.50:devops4fp1:Error occurred during LINUX Dmesg error
    Checking for all LINUX clients for devops4p10 (LP: #1766201)
    - SAUCE: integrity: downgrade error to warning

  * Screen freeze after resume from S3 when HDMI monitor plugged on Dell
    Precision 7740 (LP: #1825958)
    - PCI: Restore resized BAR state on resume

  * potential memory corruption on arm64 on dev release (LP: #1827437)
    - driver core: Postpone DMA tear-down until after devres release

  * powerpc/pmu/ebb test in ubuntu_kernel_selftest failed with "error while
    loading shared libraries" on Bionic/Cosmic PowerPC (LP: #1812805)
    - selftests/powerpc/pmu: Link ebb tests with -no-pie

  * unnecessary request_queue freeze (LP: #1815733)
    - block: av...

This bug was fixed in the package linux - 4.18.0-21.22

---------------
linux (4.18.0-21.22) cosmic; urgency=medium

  * linux: 4.18.0-21.22 -proposed tracker (LP: #1829186)

  * disable a.out support (LP: #1818552)
    - [Config] Turn off a.out support

  * ftrace in ubuntu_kernel_selftests hang with Cosmic kernel (LP: #1826385)
    - kprobes/x86: Fix instruction patching corruption when copying more than one
      RIP-relative instruction

  * touchpad not working on lenovo yoga 530 (LP: #1787775)
    - Revert "UBUNTU: SAUCE: i2c:amd Depends on ACPI"
    - Revert "UBUNTU: SAUCE: i2c:amd move out pointer in union i2c_event_base"
    - Revert "UBUNTU: SAUCE: i2c:amd I2C Driver based on PCI Interface for
      upcoming platform"
    - i2c: add extra check to safe DMA buffer helper
    - i2c: Add drivers for the AMD PCIe MP2 I2C controller
    - [Config] Update config for AMD MP2 I2C driver
    - [Config] Update I2C_AMD_MP2 annotations

  * Geneve tunnels don't work when ipv6 is disabled (LP: #1794232)
    - geneve: correctly handle ipv6.disable module parameter

  * There are 4 HDMI/Displayport audio output listed in sound setting without
    attach any HDMI/DP monitor (LP: #1827967)
    - ALSA: hda/hdmi - Read the pin sense from register when repolling
    - ALSA: hda/hdmi - Consider eld_valid when reporting jack event

  * Headphone jack switch sense is inverted: plugging in headphones disables
    headphone output (LP: #1824259)
    - ASoC: rt5645: Headphone Jack sense inverts on the LattePanda board

  * CTAUTO:DevOps:860.50:devops4fp1:Error occurred during LINUX Dmesg error
    Checking for all LINUX clients for devops4p10 (LP: #1766201)
    - SAUCE: integrity: downgrade error to warning

  * potential memory corruption on arm64 on dev release (LP: #1827437)
    - driver core: Postpone DMA tear-down until after devres release

  * powerpc/pmu/ebb test in ubuntu_kernel_selftest failed with "error while
    loading shared libraries" on Bionic/Cosmic PowerPC (LP: #1812805)
    - selftests/powerpc/pmu: Link ebb tests with -no-pie

  * unnecessary request_queue freeze (LP: #1815733)
    - block: avoid setting nr_requests to current value
    - block: avoid setting none scheduler if it's already none

  * Kprobe event string type argument failed in ftrace from
    ubuntu_kernel_selftests on B/C i386 (LP: #1825780)
    - selftests/ftrace: Fix kprobe string testcase to not probe notrace function

  * False positive test result in run_netsocktests from net in
    ubuntu_kernel_selftest (LP: #1825777)
    - selftests/net: correct the return value for run_netsocktests

 -- Stefan Bader <email address hidden> Wed, 15 May 2019 13:18:36 +0200

Verified on a KVM node / bare-metal with disco

selftests: net: run_netsocktests
========================================
--------------------
running socket test
--------------------
[PASS]
ok 1..7 selftests: net: run_netsocktests [PASS]

It's not failing so the exit 1 was not triggered. But if you tweak the source code to make the socket program return a non-zero failure, this can be verified.

selftests: net: run_netsocktests
========================================
--------------------
running socket test
--------------------
[FAIL]
not ok 1..7 selftests: net: run_netsocktests [FAIL]

Therefore marking this as verified on Disco.

This bug was fixed in the package linux - 5.0.0-16.17

---------------
linux (5.0.0-16.17) disco; urgency=medium

  * linux: 5.0.0-16.17 -proposed tracker (LP: #1829173)

  * shiftfs: lock security sensitive superblock flags (LP: #1827122)
    - SAUCE: shiftfs: lock down certain superblock flags

  * Please package libbpf (which is done out of the kernel src) in Debian [for
    19.10] (LP: #1826410)
    - SAUCE: tools -- fix add ability to disable libbfd

  * Disco update: 5.0.8 upstream stable release (LP: #1828415)
    - drm/i915/gvt: do not let pin count of shadow mm go negative
    - kbuild: pkg: use -f $(srctree)/Makefile to recurse to top Makefile
    - netfilter: nft_compat: use .release_ops and remove list of extension
    - netfilter: nf_tables: use-after-free in dynamic operations
    - netfilter: nf_tables: add missing ->release_ops() in error path of newrule()
    - hv_netvsc: Fix unwanted wakeup after tx_disable
    - ibmvnic: Fix completion structure initialization
    - ip6_tunnel: Match to ARPHRD_TUNNEL6 for dev type
    - ipv6: Fix dangling pointer when ipv6 fragment
    - ipv6: sit: reset ip header pointer in ipip6_rcv
    - kcm: switch order of device registration to fix a crash
    - net: ethtool: not call vzalloc for zero sized memory request
    - net-gro: Fix GRO flush when receiving a GSO packet.
    - net/mlx5: Decrease default mr cache size
    - netns: provide pure entropy for net_hash_mix()
    - net: rds: force to destroy connection if t_sock is NULL in
      rds_tcp_kill_sock().
    - net/sched: act_sample: fix divide by zero in the traffic path
    - net/sched: fix ->get helper of the matchall cls
    - qmi_wwan: add Olicard 600
    - r8169: disable ASPM again
    - sctp: initialize _pad of sockaddr_in before copying to user memory
    - tcp: Ensure DCTCP reacts to losses
    - tcp: fix a potential NULL pointer dereference in tcp_sk_exit
    - vrf: check accept_source_route on the original netdevice
    - net/mlx5e: Fix error handling when refreshing TIRs
    - net/mlx5e: Add a lock on tir list
    - nfp: validate the return code from dev_queue_xmit()
    - nfp: disable netpoll on representors
    - bnxt_en: Improve RX consumer index validity check.
    - bnxt_en: Reset device on RX buffer errors.
    - net: ip_gre: fix possible use-after-free in erspan_rcv
    - net: ip6_gre: fix possible use-after-free in ip6erspan_rcv
    - net: bridge: always clear mcast matching struct on reports and leaves
    - net: thunderx: fix NULL pointer dereference in nicvf_open/nicvf_stop
    - net: vrf: Fix ping failed when vrf mtu is set to 0
    - net: core: netif_receive_skb_list: unlist skb before passing to pt->func
    - r8169: disable default rx interrupt coalescing on RTL8168
    - net: mlx5: Add a missing check on idr_find, free buf
    - net/mlx5e: Update xoff formula
    - net/mlx5e: Update xon formula
    - kbuild: clang: choose GCC_TOOLCHAIN_DIR not on LD
    - lib/string.c: implement a basic bcmp
    - Revert "clk: meson: clean-up clock registration"
    - tty: mark Siemens R3964 line discipline as BROKEN
    - [Config]: remove CONFIG_R3964
    - [Config]: add CONFIG_LDISC_AUTOLOAD=y
    - tty: ldisc: add sysctl to p...