linux/drivers/firmware/efi/libstub
Josh Boyer f3cf6f7434 efi: Disable secure boot if shim is in insecure mode
A user can manually tell the shim boot loader to disable validation of
images it loads.  When a user does this, it creates a UEFI variable called
MokSBState that does not have the runtime attribute set.  Given that the
user explicitly disabled validation, we can honor that and not enable
secure boot mode if that variable is set.

Signed-off-by: Josh Boyer <jwboyer@fedoraproject.org>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-efi@vger.kernel.org
Link: http://lkml.kernel.org/r/1486380166-31868-6-git-send-email-ard.biesheuvel@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-02-07 10:42:10 +01:00
..
arm32-stub.c efi/arm/libstub: Make screen_info accessible to the UEFI stub 2016-04-28 11:33:59 +02:00
arm64-stub.c arm64: kaslr: increase randomization granularity 2016-04-28 19:44:15 +01:00
arm-stub.c efi: Get and store the secure boot status 2017-02-07 10:42:10 +01:00
efi-stub-helper.c efi: Deduplicate efi_file_size() / _read() / _close() 2017-02-01 08:45:42 +01:00
efistub.h efi: Deduplicate efi_file_size() / _read() / _close() 2017-02-01 08:45:42 +01:00
fdt.c efi/fdt: Avoid FDT manipulation after ExitBootServices() 2017-02-01 21:17:49 +01:00
gop.c efi/libstub: Move Graphics Output Protocol handling to generic code 2016-04-28 11:33:57 +02:00
Makefile efi: Get and store the secure boot status 2017-02-07 10:42:10 +01:00
random.c efi/libstub: Make efi_random_alloc() allocate below 4 GB on 32-bit 2016-11-25 07:15:23 +01:00
secureboot.c efi: Disable secure boot if shim is in insecure mode 2017-02-07 10:42:10 +01:00
string.c arm64/efi: isolate EFI stub from the kernel proper 2015-10-12 16:20:12 +01:00