Re: [PATCH 1/2 v2] kprobe: Do not use uaccess functions to access kernel memory that can fault

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Subject: Re: [PATCH 1/2 v2] kprobe: Do not use uaccess functions to access kernel memory that can fault
From: Kees Cook <keescook@xxxxxxxxxxxx>
Date: Mon, 25 Feb 2019 09:07:28 -0800
Cc: Steven Rostedt <rostedt@xxxxxxxxxxx>, Masami Hiramatsu <mhiramat@xxxxxxxxxx>, Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>, Linux List Kernel Mailing <linux-kernel@xxxxxxxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, stable <stable@xxxxxxxxxxxxxxx>, Changbin Du <changbin.du@xxxxxxxxx>, Jann Horn <jannh@xxxxxxxxxx>
In-reply-to: <CALCETrXrjxkL1pYu-SDnfNL+99N4h+yuLEzab5ytwczWNgFyRg@mail.gmail.com>

On Mon, Feb 25, 2019 at 8:58 AM Andy Lutomirski <luto@xxxxxxxxxx> wrote:
> I sure hope that pagefault_disable() already takes care of this.
> Otherwise we have major problems already.

Okay, cool. I missed that bit. :)

-- 
Kees Cook

References:
- [PATCH 1/2 v2] kprobe: Do not use uaccess functions to access kernel memory that can fault
  - From: Steven Rostedt
- Re: [PATCH 1/2 v2] kprobe: Do not use uaccess functions to access kernel memory that can fault
  - From: Linus Torvalds
- Re: [PATCH 1/2 v2] kprobe: Do not use uaccess functions to access kernel memory that can fault
  - From: Steven Rostedt
- Re: [PATCH 1/2 v2] kprobe: Do not use uaccess functions to access kernel memory that can fault
  - From: Andy Lutomirski
- Re: [PATCH 1/2 v2] kprobe: Do not use uaccess functions to access kernel memory that can fault
  - From: Steven Rostedt
- Re: [PATCH 1/2 v2] kprobe: Do not use uaccess functions to access kernel memory that can fault
  - From: Linus Torvalds
- Re: [PATCH 1/2 v2] kprobe: Do not use uaccess functions to access kernel memory that can fault
  - From: Linus Torvalds
- Re: [PATCH 1/2 v2] kprobe: Do not use uaccess functions to access kernel memory that can fault
  - From: Steven Rostedt
- Re: [PATCH 1/2 v2] kprobe: Do not use uaccess functions to access kernel memory that can fault
  - From: Linus Torvalds
- Re: [PATCH 1/2 v2] kprobe: Do not use uaccess functions to access kernel memory that can fault
  - From: Steven Rostedt
- Re: [PATCH 1/2 v2] kprobe: Do not use uaccess functions to access kernel memory that can fault
  - From: Masami Hiramatsu
- Re: [PATCH 1/2 v2] kprobe: Do not use uaccess functions to access kernel memory that can fault
  - From: Steven Rostedt
- Re: [PATCH 1/2 v2] kprobe: Do not use uaccess functions to access kernel memory that can fault
  - From: Masami Hiramatsu
- Re: [PATCH 1/2 v2] kprobe: Do not use uaccess functions to access kernel memory that can fault
  - From: Masami Hiramatsu
- Re: [PATCH 1/2 v2] kprobe: Do not use uaccess functions to access kernel memory that can fault
  - From: Linus Torvalds
- Re: [PATCH 1/2 v2] kprobe: Do not use uaccess functions to access kernel memory that can fault
  - From: Masami Hiramatsu
- Re: [PATCH 1/2 v2] kprobe: Do not use uaccess functions to access kernel memory that can fault
  - From: Steven Rostedt
- Re: [PATCH 1/2 v2] kprobe: Do not use uaccess functions to access kernel memory that can fault
  - From: Andy Lutomirski
- Re: [PATCH 1/2 v2] kprobe: Do not use uaccess functions to access kernel memory that can fault
  - From: Kees Cook
- Re: [PATCH 1/2 v2] kprobe: Do not use uaccess functions to access kernel memory that can fault
  - From: Andy Lutomirski

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