Public bug reported:
The backport of upstream stable commit 05412471beba "bpf: Take return
from set_memory_ro() into account with bpf_prog_lock_ro()" (linux-6.9.y)
for xenial breaks the boot on arm64 machines in security cycle
s2025.01.13. Note that the backport for bionic that was submitted
together with the xenial version to fix CVE-2024-42068 seems to be fine.
The kernel will hang during or after the EFI stub runs:
BdsDxe: starting Boot0002 "UEFI Misc Device 2" from
PciRoot(0x0)/Pci(0x1,0x3)/Pci(0x0,0x0)
error: no suitable video mode found.
Loading Linux 4.4.0-265-generic ...
Loading initial ramdisk ...
EFI stub: Booting Linux Kernel...
EFI stub: Using DTB from configuration table
EFI stub: Exiting boot services and installing virtual address map...
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Invalid
** Affects: linux (Ubuntu Xenial)
Importance: Undecided
Status: Triaged
** Also affects: linux (Ubuntu Xenial)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu)
Status: New => Invalid
** Changed in: linux (Ubuntu Xenial)
Status: New => Triaged
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https://bugs.launchpad.net/bugs/2098704
Title:
Xenial backport of upstream patch breaks arm64 boot
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