[Bug 1900774] [NEW] [arm64] EFI stub: ERROR: FIRMWARE BUG: efi_loaded_image_t::image_base has bogus value

[dann frazier]

Public bug reported:

[Impact]
When booting a kernel >= 5.7 via GRUB on an arm64 server, the EFI stub falsely reports a firmware bug:

EFI stub: Booting Linux Kernel...
EFI stub: EFI_RNG_PROTOCOL unavailable, no randomness supplied
EFI stub: ERROR: FIRMWARE BUG: efi_loaded_image_t::image_base has bogus value
EFI stub: Using DTB from configuration table
EFI stub: Exiting boot services and installing virtual address map...
[    0.000000] Booting Linux on physical CPU 0x0000000000 [0x431f0a10]

[Test Case]
Boot the groovy kernel.

[Fix]
https://github.com/rhboot/grub2/commit/1d5ef08216edec4d31d0e10cfdb30b5ebfef7a45

[Regression Impact]

** Affects: grub2 (Ubuntu)
     Importance: Undecided
         Status: New

** Affects: grub2 (Ubuntu Focal)
     Importance: Undecided
         Status: New

** Affects: grub2 (Ubuntu Groovy)
     Importance: Undecided
         Status: New

** Also affects: grub2 (Ubuntu Groovy)
   Importance: Undecided
       Status: New

** Also affects: grub2 (Ubuntu Focal)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1900774

Title:
  [arm64] EFI stub: ERROR: FIRMWARE BUG: efi_loaded_image_t::image_base
  has bogus value

Status in grub2 package in Ubuntu:
  New
Status in grub2 source package in Focal:
  New
Status in grub2 source package in Groovy:
  New

Bug description:
  [Impact]
  When booting a kernel >= 5.7 via GRUB on an arm64 server, the EFI stub falsely reports a firmware bug:

  EFI stub: Booting Linux Kernel...
  EFI stub: EFI_RNG_PROTOCOL unavailable, no randomness supplied
  EFI stub: ERROR: FIRMWARE BUG: efi_loaded_image_t::image_base has bogus value
  EFI stub: Using DTB from configuration table
  EFI stub: Exiting boot services and installing virtual address map...
  [    0.000000] Booting Linux on physical CPU 0x0000000000 [0x431f0a10]

  [Test Case]
  Boot the groovy kernel.

  [Fix]
  https://github.com/rhboot/grub2/commit/1d5ef08216edec4d31d0e10cfdb30b5ebfef7a45

  [Regression Impact]

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