From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Daniel Vetter <daniel@ffwll.ch>
Cc: Tom Lendacky <thomas.lendacky@amd.com>,
David Airlie <airlied@linux.ie>,
Daniel Vetter <daniel.vetter@ffwll.ch>,
Eyal Itkin <eyalit@checkpoint.com>,
dri-devel@lists.freedesktop.org,
Cihangir Akturk <cakturk@gmail.com>,
Krzysztof Kozlowski <krzk@kernel.org>,
Ingo Molnar <mingo@kernel.org>
Subject: Re: [PATCH] drm: udl: Properly check framebuffer mmap offsets
Date: Thu, 22 Mar 2018 09:03:00 +0100 [thread overview]
Message-ID: <20180322080300.GA28877@kroah.com> (raw)
In-Reply-To: <20180322065959.GF14155@phenom.ffwll.local>
On Thu, Mar 22, 2018 at 07:59:59AM +0100, Daniel Vetter wrote:
> Does anyone working on overflow-proof integers? That would make a lot of
> this code so much simpler if we could just ask the compiler to carry the
> oferflow bit around for a given expression and then check that and bail
> with -EINVAL.
That would be nice, but no, I don't think that's part of any C standard
work that I have heard of :(
greg k-h
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next prev parent reply other threads:[~2018-03-22 8:03 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-21 15:45 [PATCH] drm: udl: Properly check framebuffer mmap offsets Greg Kroah-Hartman
2018-03-22 6:59 ` Daniel Vetter
2018-03-22 8:03 ` Greg Kroah-Hartman [this message]
2018-03-22 9:54 ` Daniel Vetter
2018-03-23 0:14 ` Kees Cook
2018-03-26 8:26 ` Daniel Vetter
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