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Date: Fri, 31 Mar 2017 19:20:20 +0200
From: Andrey Konovalov <andreyknvl@...gle.com>
To: oss-security@...ts.openwall.com
Subject: Re: CVE-2017-7308: Linux kernel: integer overflow in packet_set_ring

On Fri, Mar 31, 2017 at 2:03 PM, Andrey Konovalov <andreyknvl@...gle.com> wrote:
> Hi,
>
> CVE-2017-7308 [1] was assigned to the following issue:
>
> The packet_set_ring function in net/packet/af_packet.c in the Linux
> kernel through 4.10.6 does not properly validate certain block-size
> data, which allows local users to cause a denial of service (overflow)
> or possibly have unspecified other impact via crafted system calls.
>
> The fix is sent upstream [2].

Update: the fix actually consists of 3 patches:

https://patchwork.ozlabs.org/patch/744811/
https://patchwork.ozlabs.org/patch/744813/
https://patchwork.ozlabs.org/patch/744812/

>
> [1] http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=2017-7308
>
> [2] https://patchwork.ozlabs.org/patch/744811/

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