Bug Security IT Linux Running "rm -rf /" Is Now Bricking Linux Systems (UEFI bios)

Edward78 · 2 Feb 2016 at 04:34

http://linux.slashdot.org/story/16/02/01/1357237/running-rm--rf--is-now-bricking-linux-systems

SMN · 2 Feb 2016 at 09:09

Ah an Edward78 thread..

randal · 2 Feb 2016 at 09:15

Easily cured with:

Code:

dd bs=1M if=/dev/urandom of=/dev/sda

I think it's worth pointing out that this is a UEFI problem, and not a Linux distribution issue.

mortals · 2 Feb 2016 at 12:05

Edward78 said:
Bug Security IT Linux Running "rm -rf /" Is Now Bricking Linux Systems (UEFI bios)http://linux.slashdot.org/story/16/02/01/1357237/running-rm--rf--is-now-bricking-linux-systems

Should read "One guy reports bricking of system after rm -rf /"

It does show there is a bug (or poor implementation) but this phoronix news post seems to make out bricking is a issue/possibility on every uefi system. (depends on the system, also issues with efivars have been known & documented in security talks with bugs going back to 2014)

There's also the whole "everyone blame/troll systemd" thing which lead to people misunderstanding what the systemd developers were saying or that it's actually a kernel issue

The whole mount ro idea doesn't fix the issue which I think is what the systemd dev's were trying to say on github.

edit:

also who does "rm -rf /" ??