Re: Logging a kernel message when blocking on entropy

To: Manuel Bouyer <bouyer%antioche.eu.org@localhost>
Subject: Re: Logging a kernel message when blocking on entropy
From: Andreas Gustafsson <gson%gson.org@localhost>
Date: Tue, 22 Sep 2020 14:31:50 +0300

Manuel Bouyer wrote:
> I'm not sure we want a user-triggerable kernel printf enabled by default.
> This could be used to DOS the system (especially on serial consoles)

You can already trigger kernel printfs as an unprivileged user.
The first one that comes to mind is "sorry, pid %d was killed:
orphaned traced process", but I'm sure there are many others.
-- 
Andreas Gustafsson, gson%gson.org@localhost

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- Logging a kernel message when blocking on entropy
  - From: Andreas Gustafsson
- Re: Logging a kernel message when blocking on entropy
  - From: Manuel Bouyer

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