[Bug 1934780] Update Released

[Łukasz Zemczak]

The verification of the Stable Release Update for shim has completed
successfully and the package is now being released to -updates.
Subsequently, the Ubuntu Stable Release Updates Team is being
unsubscribed and will not receive messages about this bug report.  In
the event that you encounter a regression using the package from
-updates please report a new bug using ubuntu-bug and tag the bug report
regression-update so we can easily find any regressions.

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https://bugs.launchpad.net/bugs/1934780

Title:
  shim crashes on Mellanox BF1 SmartNIC

Status in shim package in Ubuntu:
  Fix Released
Status in shim-signed package in Ubuntu:
  Fix Released
Status in shim source package in Xenial:
  Fix Committed
Status in shim-signed source package in Xenial:
  Fix Committed
Status in shim source package in Bionic:
  Fix Committed
Status in shim-signed source package in Bionic:
  Fix Committed
Status in shim source package in Focal:
  Fix Committed
Status in shim-signed source package in Focal:
  Fix Committed
Status in shim source package in Hirsute:
  Fix Released

Bug description:
  [Impact]
  Systems that do not support QueryVariableInfo() EFI function fail to boot.

  [Test plan]
  Would be good to get this checked on the Mellanox BF1 SmartNIC on one release (shim is binary copied)

  [Where problems could occur]
  it might still fail to mirror variables on those platforms. Code looks like the variable could be uninitialized on error case, but it's actually set inside the call to 0 so that's good.

  [Original bug report]

  shim in focal-proposed (shim-signed 1.40.5) is crashing on Mellanox
  BF1 SmartNIC, showing this trace:

  >>Start PXE over IPv4.
    Station IP address is 192.168.100.2

    Server IP address is 192.168.100.1
    NBP filename is shimaa64.efi.signed
    NBP filesize is 840024 Bytes
   Downloading NBP file...

    NBP file downloaded successfully.
  Could not get variable storage info: Unsupported
  Could not create MokListRT: Unsupported
  Could not get variable storage info: Unsupported
  Could not create MokListXRT: Unsupported
  Could not get variable storage info: Unsupported
  Could not create MokListRT: Unsupported
  Could not get variable storage info: Unsupported
  Could not create MokListXRT: Unsupported
  Something has gone seriously wrong: import_mok_state() failed: Unsupported
  ERROR:   System Off: operation not handled.
  PANIC at PC : 0x000000000045c488

  Some EFI related kernel output:

  [    0.000000] efi: EFI v2.70 by EDK II
  [    0.000000] efi:  SMBIOS=0xfafb0000  SMBIOS 3.0=0xf5b70000  ACPI=0xf5c10000  ACPI 2.0=0xf5c10014  MEMATTR=0xf769e018  ESRT=0xf7593098  MEMRESERVE=0xf49e9018
  [    0.000000] Kernel is locked down from EFI Secure Boot mode; see man kernel_lockdown.7
  [    0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz console=hvc0 console=ttyAMA0 earlycon=pl011,0x01000000 fixrtc ip=:::::tmfifo_net0:dhcp url=http://192.168.100.1/tftp/bluefield.iso cloud-config-url=/dev/null nopersistent
  [    0.085871] Remapping and enabling EFI services.
  [    0.377821] DMI: https://www.mellanox.com BlueField SoC/BlueField SoC, BIOS BlueField:3.6.0-24-gd4db9c4 Apr  6 2021
  [    1.028977] Registered efivars operations
  [    2.481241] rtc-efi rtc-efi: registered as rtc0
  [    2.593647] EFI Variables Facility v0.08 2004-May-17

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