linux-kernel - Re: [PATCH] seccomp: passthrough uretprobe systemcall without filtering

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Message-ID: <20250121111631.6e830edd@gandalf.local.home>
Date: Tue, 21 Jan 2025 11:16:31 -0500
From: Steven Rostedt <rostedt@...dmis.org>
To: Jiri Olsa <olsajiri@...il.com>
Cc: Eyal Birger <eyal.birger@...il.com>, Kees Cook <kees@...nel.org>,
 luto@...capital.net, wad@...omium.org, oleg@...hat.com, ldv@...ace.io,
 mhiramat@...nel.org, andrii@...nel.org, alexei.starovoitov@...il.com,
 cyphar@...har.com, songliubraving@...com, yhs@...com,
 john.fastabend@...il.com, peterz@...radead.org, tglx@...utronix.de,
 bp@...en8.de, daniel@...earbox.net, ast@...nel.org,
 andrii.nakryiko@...il.com, 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, stable@...r.kernel.org
Subject: Re: [PATCH] seccomp: passthrough uretprobe systemcall without
 filtering


[ Watching this with popcorn from the sidelines, but I'll chime in anyway ]

On Tue, 21 Jan 2025 15:38:48 +0100
Jiri Olsa <olsajiri@...il.com> wrote:

> I'm still trying to come up with some other solution but wanted
> to exhaust all the options I could think of

I think this may have been mentioned, but is there a way that the kernel
could know that this system call is being monitored by seccomp, and if so,
just stick with the interrupt version? If not, enable the system call?

-- Steve