On Mon, Nov 15, 2021 at 09:39:53AM -0800, Greg Thelen wrote:
> The patch titled ("perf/core: Avoid put_page() when GUP fails") has been
> merged into linus/master as commit
> 4716023a8f6a0f4a28047f14dd7ebdc319606b84.
>
> The patch fixes an issue present in all v4.14+ kernels that can cause
> page reference count underflow, which can lead to unintentional page
> sharing.
>
> The patch did not have cc: stable footer, so I'm manually requesting
> -stable inclusion into v4.14+.
>
> There are some trivial conflicts in older kernels. I'd be happy to
> review/test, if that's useful.
Please provide working versions for 4.14, 4.19, and 5.4. The others
kernels applied just fine.
thanks,
greg k-h
