Re: [PATCH] posix-timer: don't call idr_find() w/ negative ID

[Tejun Heo]

On Wed, Feb 20, 2013 at 2:10 PM, Sasha Levin <sasha.levin@xxxxxxxxxx> wrote:
> I do think that if you have to resort to using something like that there's
> something terribly wrong with the code somewhere else, and that other thing
> should be fixed first.
>
> Maybe digging into the timers code and seeing why this is needed there will
> prove me wrong...

The problem is that userland can feed us any timer_t which makes it
necessary to properly sanitize the value before using it.

Thanks.

-- 
tejun
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/