Re: [PATCH 1/9] x86/kprobes: Prohibit probing on optprobe template code

From: Masami Hiramatsu
Date: Thu Jan 10 2019 - 09:57:18 EST


On Thu, 10 Jan 2019 07:07:20 +0100
Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx> wrote:

> On Thu, Jan 10, 2019 at 11:54:30AM +0900, Masami Hiramatsu wrote:
> > Prohibit probing on optprobe template code, since it is not
> > a code but a template instruction sequence. If we modify
> > this template, copied template must be broken.
> >
> > Signed-off-by: Masami Hiramatsu <mhiramat@xxxxxxxxxx>
> > Fixes: 9326638cbee2 ("kprobes, x86: Use NOKPROBE_SYMBOL() instead of __kprobes annotation")
> > ---
> > arch/x86/kernel/kprobes/opt.c | 5 +++++
> > 1 file changed, 5 insertions(+)
>
> <formletter>
>
> This is not the correct way to submit patches for inclusion in the
> stable kernel tree. Please read:
> https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html
> for how to do this properly.
>
> </formletter>
>
> Same for all patches in this series...

Oops, sorry. I'll fix the format again.
BTW, I'm still considering I should make it other patches in this series
as improvement instead of fix, since those are just adding blacklist, and
usually user can avoid it with KPROBE_EVENTS_ON_NOTRACE=n (which is default).

Thank you,

--
Masami Hiramatsu <mhiramat@xxxxxxxxxx>