gtp: unable to associate contextes to interfaces

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 1894605

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.

Note that commit can be found in B/hwe as well.

This has been applied on Groovy master-next with stable update.
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1895097

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 was fixed in the package linux - 4.15.0-121.123

---------------
linux (4.15.0-121.123) bionic; urgency=medium

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

linux (4.15.0-120.122) bionic; urgency=medium

  * CVE-2020-16119
    - SAUCE: dccp: avoid double free of ccid on child socket

  * CVE-2020-16120
    - Revert "UBUNTU: SAUCE: overlayfs: ensure mounter privileges when reading
      directories"
    - ovl: pass correct flags for opening real directory
    - ovl: switch to mounter creds in readdir
    - ovl: verify permissions in ovl_path_open()

linux (4.15.0-119.120) bionic; urgency=medium

  * bionic/linux: 4.15.0-119.120 -proposed tracker (LP: #1896040)

  * gtp: unable to associate contextes to interfaces (LP: #1894605)
    - gtp: add GTPA_LINK info to msg sent to userspace

  * uvcvideo: add mapping for HEVC payloads (LP: #1895803)
    - media: videodev2.h: Add v4l2 definition for HEVC
    - SAUCE: media: uvcvideo: Add mapping for HEVC payloads

  * Novalink (mkvterm command failure) (LP: #1892546)
    - tty: hvcs: Don't NULL tty->driver_data until hvcs_cleanup()

  * rtnetlink.sh in net from ubuntu_kernel_selftests is returning 1 for a
    skipped test (LP: #1895258)
    - selftests: net: return Kselftest Skip code for skipped tests

  * Bionic update: upstream stable patchset 2020-09-16 (LP: #1895873)
    - net: Fix potential wrong skb->protocol in skb_vlan_untag()
    - tipc: fix uninit skb->data in tipc_nl_compat_dumpit()
    - ipvlan: fix device features
    - gre6: Fix reception with IP6_TNL_F_RCV_DSCP_COPY
    - ALSA: pci: delete repeated words in comments
    - ASoC: tegra: Fix reference count leaks.
    - mfd: intel-lpss: Add Intel Emmitsburg PCH PCI IDs
    - arm64: dts: qcom: msm8916: Pull down PDM GPIOs during sleep
    - powerpc/xive: Ignore kmemleak false positives
    - media: pci: ttpci: av7110: fix possible buffer overflow caused by bad DMA
      value in debiirq()
    - blktrace: ensure our debugfs dir exists
    - scsi: target: tcmu: Fix crash on ARM during cmd completion
    - iommu/iova: Don't BUG on invalid PFNs
    - drm/amdkfd: Fix reference count leaks.
    - drm/radeon: fix multiple reference count leak
    - drm/amdgpu: fix ref count leak in amdgpu_driver_open_kms
    - drm/amd/display: fix ref count leak in amdgpu_drm_ioctl
    - drm/amdgpu: fix ref count leak in amdgpu_display_crtc_set_config
    - drm/amdgpu/display: fix ref count leak when pm_runtime_get_sync fails
    - scsi: lpfc: Fix shost refcount mismatch when deleting vport
    - selftests/powerpc: Purge extra count_pmc() calls of ebb selftests
    - omapfb: fix multiple reference count leaks due to pm_runtime_get_sync
    - PCI: Fix pci_create_slot() reference count leak
    - rtlwifi: rtl8192cu: Prevent leaking urb
    - mips/vdso: Fix resource leaks in genvdso.c
    - cec-api: prevent leaking memory through hole in structure
    - f2fs: fix use-after-free issue
    - drm/nouveau/drm/noveau: fix reference count leak in nouveau_fbcon_open
    - drm/nouveau: Fix reference count leak in nouveau_connector_detect
    - locking/lockdep: Fix overflow in presentation of average lock-time
    - scsi: iscsi: Do not put h...