From: Hannes Frederic Sowa <hannes@stressinduktion.org>
To: Eric Dumazet <eric.dumazet@gmail.com>,
Sasha Levin <sasha.levin@oracle.com>
Cc: "David S. Miller" <davem@davemloft.net>,
LKML <linux-kernel@vger.kernel.org>,
netdev@vger.kernel.org, Andrey Ryabinin <a.ryabinin@samsung.com>,
Dave Jones <davej@redhat.com>
Subject: Re: net: integer overflow in ip_idents_reserve
Date: Wed, 17 Dec 2014 00:09:16 +0100 [thread overview]
Message-ID: <1418771356.3449499.203748285.4B1A82B8@webmail.messagingengine.com> (raw)
In-Reply-To: <1418766460.9773.48.camel@edumazet-glaptop2.roam.corp.google.com>
On Tue, Dec 16, 2014, at 22:47, Eric Dumazet wrote:
> On Tue, 2014-12-16 at 16:19 -0500, Sasha Levin wrote:
> > Hi Eric,
> >
> > While fuzzing with trinity on a -next kernel with the undefined behaviour
> > sanitizer path, I've observed the following warning in code which was
> > introduced in 04ca6973f7 ("ip: make IP identifiers less predictable"):
>
> This is a false positive.
Also we compile the whole kernel with -fno-strict-overflow, so every
report of signed overflow leading to undefined behavior is probably a
false positive. I don't know if it is worth to try to get rid of them, I
doubt it.
Bye,
Hannes
next prev parent reply other threads:[~2014-12-16 23:09 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-16 21:19 Sasha Levin
2014-12-16 21:47 ` Eric Dumazet
2014-12-16 23:09 ` Hannes Frederic Sowa [this message]
2014-12-16 23:22 ` Eric Dumazet
2014-12-17 1:15 ` Sasha Levin
2014-12-17 14:11 ` Eric Dumazet
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