android_kernel_samsung_msm8976/fs/efivarfs
Peter Jones 7b35014c77 efi: Make efivarfs entries immutable by default
commit ed8b0de5a33d2a2557dce7f9429dca8cb5bc5879 upstream.

"rm -rf" is bricking some peoples' laptops because of variables being
used to store non-reinitializable firmware driver data that's required
to POST the hardware.

These are 100% bugs, and they need to be fixed, but in the mean time it
shouldn't be easy to *accidentally* brick machines.

We have to have delete working, and picking which variables do and don't
work for deletion is quite intractable, so instead make everything
immutable by default (except for a whitelist), and make tools that
aren't quite so broad-spectrum unset the immutable flag.

Signed-off-by: Peter Jones <pjones@redhat.com>
Tested-by: Lee, Chun-Yi <jlee@suse.com>
Acked-by: Matthew Garrett <mjg59@coreos.com>
Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-16 08:41:37 -07:00
..
file.c efi: Make efivarfs entries immutable by default 2016-03-16 08:41:37 -07:00
inode.c efi: Make efivarfs entries immutable by default 2016-03-16 08:41:37 -07:00
internal.h efi: Make efivarfs entries immutable by default 2016-03-16 08:41:37 -07:00
Kconfig
Makefile
super.c efi: Make efivarfs entries immutable by default 2016-03-16 08:41:37 -07:00