From: Sabrina Dubroca <sd@xxxxxxxxxxxxxxx>
Date: Thu, 12 Nov 2015 10:48:22 +0100
> 2015-11-10, 16:03:52 -0800, Greg Kroah-Hartman wrote:
>> On Tue, Nov 10, 2015 at 05:59:26PM -0600, Josh Hunt wrote:
>> > On Thu, Oct 29, 2015 at 5:00 AM, Sabrina Dubroca <sd@xxxxxxxxxxxxxxx> wrote:
>> > > 2015-10-15, 14:25:03 +0200, Sabrina Dubroca wrote:
>> > >> Without this length argument, we can read past the end of the iovec in
>> > >> memcpy_toiovec because we have no way of knowing the total length of the
>> > >> iovec's buffers.
>> > >>
>> > >> This is needed for stable kernels where 89c22d8c3b27 ("net: Fix skb
>> > >> csum races when peeking") has been backported but that don't have the
>> > >> ioviter conversion, which is almost all the stable trees <= 3.18.
>> > >>
>> > >> This also fixes a kernel crash for NFS servers when the client uses
>> > >> -onfsvers=3,proto=udp to mount the export.
>> > >>
>> > >> Signed-off-by: Sabrina Dubroca <sd@xxxxxxxxxxxxxxx>
>> > >> Reviewed-by: Hannes Frederic Sowa <hannes@xxxxxxxxxxxxxxxxxxx>
>> > >
>> > > Fixes CVE-2015-8019.
>> > > http://www.openwall.com/lists/oss-security/2015/10/29/1
>> > >
>> > > --
>> > > Sabrina
>> > > --
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>> >
>> > Greg
>> >
>> > Do you have this in your queue? I saw a few other stables pick this
>> > up, but haven't seen it in 3.14 or 3.18 yet. It wasn't clear to me if
>> > this had been fully reviewed yet.
>>
>> I rely on Dave to package up networking stable patches and forward them
>> on to me, that's why you haven't seen it be picked up yet.
>>
>> thanks,
>>
>> greg k-h
>
> David, can you queue this up?
This doesn't even apply to v3.18.24, the patched call site in
net/rxrpc/ar-recvmsg.c doesn't even exist.
Once you fix this up just submit it to -stable directly, I'm
fine with that for this. I'm only handling submissions back
to v3.18 (4 releases) anyways.
Thanks.
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