[ovs-dev] [PATCH] netdev-afxdp: Fix umem creation failure due to uninitialized config.

Ilya Maximets i.maximets at ovn.org
Fri Oct 11 11:16:55 UTC 2019

On 10.10.2019 20:21, William Tu wrote:
> On Wed, Oct 09, 2019 at 04:17:58PM +0200, Ilya Maximets wrote:
>> Later version of 'struct xsk_umem_config' contains additional field
>> 'flags'.  OVS doesn't use that field passing uninitialized stack
>> memory to the 'xsk_umem__create()' call that could fail with
>> 'Invalid argument' if 'flags' are non-zero or, even worse, create
>> umem with unexpected properties.
>> We need to clear the whole structure explicitly to avoid this kind
>> of issues.
>> Fixes: 0de1b425962d ("netdev-afxdp: add new netdev type for AF_XDP.")
>> Signed-off-by: Ilya Maximets <i.maximets at ovn.org>
>> ---
> Thanks for the patch.
> I applied to master.

Thanks, William.
As this is a bug fix it needs to be backported to 2.12.

Best regards, Ilya Maximets.

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