On Sun, Nov 08, 2020 at 11:56:48AM -0800, Linus Torvalds wrote:
> .. oh, and I suspect it should have been marked for stable.
>
> I added Oleg's ack (implicit in an earlier thread), but didn't add a stable tag.
>
> It's commit b4e00444cab4 ("fork: fix copy_process(CLONE_PARENT) race
> with the exiting ->real_parent") in my tree.
>
> I'm not sure how serious it is. Yeah, the race can cause the wrong
> exit signal in theory, but I think you almost have to do it with
> cooperating processes, at which point you could have just done it
> intentionally in the first place.
>
> But it does look like a real data race, and the fix looks small and
> obvious enough that I think it's stable material.
Now queued up to stable trees, thanks!
greg k-h
