linux-kernel - Re: printk()s of user-supplied strings

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Date:	Thu, 1 Jan 1970 00:16:58 +0000
From:	Pavel Machek <pavel@....cz>
To:	Solar Designer <solar@...nwall.com>
Cc:	Willy Tarreau <w@....eu>, Ernie Petrides <petrides@...hat.com>,
	linux-kernel@...r.kernel.org, Alan Cox <alan@...rguk.ukuu.org.uk>
Subject: Re: printk()s of user-supplied strings


> > Another idea I had was to add a new format specifier to vsnprintf()
> > to explicitly escape the string (eg: "%S"). But there are so many
> > users of printk() to fix then that I'm not sure we would find them
> > all. However, it would be the real fix and not a hack because what
> > we're trying to do is to enforce controls on some data type, which
> > is exactly the point of this solution.
> 
> Yes, I had this thought, too.  This would be the cleanest solution, but
> I'm afraid that it will fail in practice.  People will continue

Please go for the cleanest solution. Anything else is not mergeable.

-- 
Thanks for all the (sleeping) penguins.
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