On Mon, May 27, 2019 at 03:54:40PM +0200, gregkh@linuxfoundation.org wrote:
The patch below does not apply to the 4.14-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.
Urgh. I'm going to punt on this unless somebody requests a backport to a kernel prior to 4.19 explicitly. The issue is that our syscall entry code was moved to C after 4.14 and this workaround relies heavily on that work. A backport would therefore necessitate a rewrite of the workaround that hooks the assembly directly. Whilst do-able, I'd rather know that (a) somebody wants this (b) they plan to deploy it on real devices and (c) they can help to test.
Sound reasonable?
Will