linux-kernel - Re: [PATCH] set*uid() must not fail-and-return on OOM/rlimits

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Date:	Sun, 20 Aug 2006 19:36:46 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Willy Tarreau <w@....eu>
Cc:	Solar Designer <solar@...nwall.com>,
	Alex Riesen <fork0@...rs.sourceforge.net>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] set*uid() must not fail-and-return on OOM/rlimits

Ar Sul, 2006-08-20 am 20:10 +0200, ysgrifennodd Willy Tarreau:
> So I think that while it's bad code in userland, a misunderstood kernel
> semantic caught the developpers. We can at least make the kernel help them.

Yeah we could. But unfortunately a competence test with the inability to
write C code isn't part of the Unix spec.

You can help them enormously using the gcc extensions so gcc warns about
any unchecked set*uid call, rather than redesigning expected behaviour
to cause obscure random kills that won't even be noticed/explained.

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