netdev - Re: [PATCH net] net/packet: Set __GFP_NOWARN upon allocation in alloc_pg

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-Id: <20190320.104718.446131167184152222.davem@davemloft.net>
Date:   Wed, 20 Mar 2019 10:47:18 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     cpaasch@...le.com
Cc:     netdev@...r.kernel.org, kal.conley@...tris.com,
        andreyknvl@...gle.com
Subject: Re: [PATCH net] net/packet: Set __GFP_NOWARN upon allocation in
 alloc_pg_vec

From: Christoph Paasch <cpaasch@...le.com>
Date: Mon, 18 Mar 2019 23:14:52 -0700

> Since commit fc62814d690c ("net/packet: fix 4gb buffer limit due to overflow check")
> one can now allocate packet ring buffers >= UINT_MAX. However, syzkaller
> found that that triggers a warning:
 ...
> We should allocate with __GFP_NOWARN to handle this.
> 
> Cc: Kal Conley <kal.conley@...tris.com>
> Cc: Andrey Konovalov <andreyknvl@...gle.com>
> Fixes: fc62814d690c ("net/packet: fix 4gb buffer limit due to overflow check")
> Signed-off-by: Christoph Paasch <cpaasch@...le.com>

Applied, thanks.