Re: [PATCH] netfilter: ipvs: Verify that IP_VS protocol has been registered

[Sasha Levin <levinsasha928@xxxxxxxxx>]

On Fri, Apr 6, 2012 at 1:19 AM, Simon Horman <horms@xxxxxxxxxxxx> wrote:
> On Thu, Apr 05, 2012 at 07:24:33PM -0400, Sasha Levin wrote:
>> The registration of a protocol might fail, there were no checks
>> and all registrations were assumed to be correct. This lead to
>> NULL ptr dereferences when apps tried registering.
>
> Thanks, I will queue up this fix.
>
> Do you have a real-world example of this failing, if so it
> might be worth pushing your change into stable.

The scenario is a failed allocation in register_ip_vs_proto_netns(),
which can happen in real world cases as well.
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