From: Thomas Gleixner <tglx@linutronix.de>
To: Jesper Juhl <jesper.juhl@gmail.com>
Cc: Andrew Morton <akpm@osdl.org>,
linux-kernel@vger.kernel.org, mingo@elte.hu,
trini@kernel.crashing.org
Subject: Re: [patch 1/2] Validate itimer timeval from userspace
Date: Sat, 18 Mar 2006 21:30:20 +0100 [thread overview]
Message-ID: <1142713820.17279.140.camel@localhost.localdomain> (raw)
In-Reply-To: <9a8748490603181223i32391d96nf794e93aa734f785@mail.gmail.com>
On Sat, 2006-03-18 at 21:23 +0100, Jesper Juhl wrote:
> Wouldn't this only break existing applications that do incorrect
> things (passing invalid values) ?
> If that's the case I'd say breaking them is OK and we should change to
> follow the spec.
>
> I don't like potential userspace breakage any more than the next guy,
> but if the breakage only affects buggy applications then I think it's
> more acceptable.
Yes, it only breaks buggy applications.
On a full blown desktop the check (I added a printk) did not trigger.
The only application I found so far was the LTP setitimer "correctness"
test, which did not initialize it_interval and handed random garbage to
the kernel. :)
tglx
next prev parent reply other threads:[~2006-03-18 20:30 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-03-18 15:18 [patch 0/2] sys_setitimer and sys_alarm hotfixes Thomas Gleixner
2006-03-18 15:18 ` [patch 1/2] Validate itimer timeval from userspace Thomas Gleixner
2006-03-18 19:10 ` Ingo Molnar
2006-03-18 19:57 ` Thomas Gleixner
2006-03-18 20:07 ` Andrew Morton
2006-03-18 20:16 ` Thomas Gleixner
2006-03-18 20:31 ` Andrew Morton
2006-03-18 20:38 ` Thomas Gleixner
2006-03-18 21:09 ` Andrew Morton
2006-03-18 21:26 ` Jesper Juhl
2006-03-18 21:33 ` Andrew Morton
2006-03-18 21:50 ` Jesper Juhl
2006-03-18 22:05 ` Thomas Gleixner
2006-03-18 22:25 ` Andrew Morton
2006-03-18 23:12 ` tglx
2006-03-18 20:45 ` Jesper Juhl
2006-03-18 22:02 ` Ray Lee
2006-03-18 23:14 ` Eric Piel
2006-03-19 8:55 ` Kyle Moffett
2006-03-18 20:23 ` Jesper Juhl
2006-03-18 20:30 ` Thomas Gleixner [this message]
2006-03-18 21:04 ` Andrew Morton
2006-03-21 15:31 ` Pavel Machek
2006-03-18 15:18 ` [patch 2/2] alarm unsigned signed conversion fixup Thomas Gleixner
2006-03-18 20:02 ` Thomas Gleixner
2006-03-18 20:12 ` Andrew Morton
2006-03-18 20:27 ` Thomas Gleixner
2006-03-18 21:06 ` Andrew Morton
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