• Josh Boyer's avatar
    efi: Check EFI revision in setup_efi_vars · f697036b
    Josh Boyer authored
    We need to check the runtime sys_table for the EFI version the firmware
    specifies instead of just checking for a NULL QueryVariableInfo.  Older
    implementations of EFI don't have QueryVariableInfo but the runtime is
    a smaller structure, so the pointer to it may be pointing off into garbage.
    
    This is apparently the case with several Apple firmwares that support EFI
    1.10, and the current check causes them to no longer boot.  Fix based on
    a suggestion from Matthew Garrett.
    Signed-off-by: 's avatarJosh Boyer <jwboyer@redhat.com>
    Signed-off-by: 's avatarMatt Fleming <matt.fleming@intel.com>
    f697036b
eboot.c 30.1 KB