linux-kernel - Re: [PATCH v3 0/2] seccomp: pass uretprobe system call through seccomp

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Message-ID: <CAHsH6Gv7SLuy+v1hRzxH7sk-dVDRKA=iTyeabRBkoFuMGz7_YQ@mail.gmail.com>
Date: Thu, 6 Feb 2025 17:06:29 -0800
From: Eyal Birger <eyal.birger@...il.com>
To: Kees Cook <kees@...nel.org>
Cc: luto@...capital.net, wad@...omium.org, oleg@...hat.com, 
	mhiramat@...nel.org, andrii@...nel.org, jolsa@...nel.org, olsajiri@...il.com, 
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	john.fastabend@...il.com, peterz@...radead.org, tglx@...utronix.de, 
	bp@...en8.de, daniel@...earbox.net, ast@...nel.org, andrii.nakryiko@...il.com, 
	rostedt@...dmis.org, rafi@....io, shmulik.ladkani@...il.com, 
	bpf@...r.kernel.org, linux-api@...r.kernel.org, 
	linux-trace-kernel@...r.kernel.org, x86@...nel.org, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 0/2] seccomp: pass uretprobe system call through seccomp

On Thu, Feb 6, 2025 at 1:22 PM Kees Cook <kees@...nel.org> wrote:
>
> On Sun, 02 Feb 2025 08:29:19 -0800, Eyal Birger wrote:
> > uretprobe(2) is an performance enhancement system call added to improve
> > uretprobes on x86_64.
> >
> > Confinement environments such as Docker are not aware of this new system
> > call and kill confined processes when uretprobes are attached to them.
> >
> > Since uretprobe is a "kernel implementation detail" system call which is
> > not used by userspace application code directly, pass this system call
> > through seccomp without forcing existing userspace confinement environments
> > to be changed.
> >
> > [...]
>
> With the changes I mentioned in each patch, I've applied this to
> for-next/seccomp, with the intention of getting them into v6.14-rc2.
>
> Thanks!

Thank you very much for your help.

Eyal.