I am seeing in the Arch UEFI documentation:
UEFI Runtime Variables Support (efivarfs filesystem -
/sys/firmware/efi/efivars). This option is important as this is required
to manipulate UEFI runtime variables using tools like
/usr/bin/efibootmgr. The configuration option below has been added in
kernel 3.10 and later.
CONFIG_EFIVAR_FS=y
UEFI Runtime Variables Support (old efivars sysfs interface -
/sys/firmware/efi/vars). This option should be disabled to prevent any
potential issues with both efivarfs and sysfs-efivars enabled.
CONFIG_EFI_VARS=n
Unfortunately, in Ubuntu 20.04, both of these are set =y
Is this an error? Should I be reporting this as a kernel bug? And what
are the implications? Should we be deleting dump-* in both?
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https://bugs.launchpad.net/bugs/1953261
Title:
kernel >= 5.13 BUG: kernel NULL pointer dereference
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