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| author | Peter Jones <pjones@redhat.com> | 2016-02-08 22:48:15 +0300 |
|---|---|---|
| committer | Matt Fleming <matt@codeblueprint.co.uk> | 2016-02-10 19:25:52 +0300 |
| commit | ed8b0de5a33d2a2557dce7f9429dca8cb5bc5879 (patch) | |
| tree | 1dcd2e49cc432ae312677ec47453ec3abc18f1d2 /Documentation/filesystems/ext2.txt | |
| parent | 8282f5d9c17fe15a9e658c06e3f343efae1a2a2f (diff) | |
| download | linux-ed8b0de5a33d2a2557dce7f9429dca8cb5bc5879.tar.xz | |
efi: Make efivarfs entries immutable by default
"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>
Diffstat (limited to 'Documentation/filesystems/ext2.txt')
0 files changed, 0 insertions, 0 deletions