Re: KMSAN: uninit-value in mpol_rebind_mm

[Vlastimil Babka]

On 1/5/19 2:28 AM, Andrew Morton wrote:
> On Fri, 4 Jan 2019 09:50:31 +0100 Vlastimil Babka <vbabka@xxxxxxx> wrote:
> 
>>> Yes, it doesn't and it's not trivial to do. The tool reports uses of
>>> unint _values_. Values don't necessary reside in memory. It can be a
>>> register, that come from another register that was calculated as a sum
>>> of two other values, which may come from a function argument, etc.
>>
>> I see. BTW, the patch I sent will be picked up for testing, or does it
>> have to be in mmotm/linux-next first?
> 
> I grabbed it.  To go further we'd need a changelog, a signoff,
> description of testing status, reviews, a Fixes: and perhaps a
> cc:stable ;)

Here's the full patch. Since there was no reproducer, there probably
won't be any conclusive testing, but we might interpret lack of further
KSMSAN reports as a success :)

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