linux-kernel - Re: [PATCH] tracing/selftests: Add ownership modification tests for eventfs

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Message-ID: <20231221194052.430d193b@gandalf.local.home>
Date: Thu, 21 Dec 2023 19:40:52 -0500
From: Steven Rostedt <rostedt@...dmis.org>
To: LKML <linux-kernel@...r.kernel.org>, Linux Trace Kernel
 <linux-trace-kernel@...r.kernel.org>
Cc: Masami Hiramatsu <mhiramat@...nel.org>, Mark Rutland
 <mark.rutland@....com>, Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
 Linus Torvalds <torvalds@...ux-foundation.org>, Shuah Khan
 <shuah@...nel.org>, Linux selftests <linux-kselftest@...r.kernel.org>
Subject: Re: [PATCH] tracing/selftests: Add ownership modification tests for
 eventfs

On Thu, 21 Dec 2023 19:35:51 -0500
Steven Rostedt <rostedt@...dmis.org> wrote:

> +
> +# find another owner and group that is not the original
> +other_group=`tac /etc/group | grep -v ":$original_group:" | head -1 | cut -d: -f3`
> +other_owner=`tac /etc/passwd | grep -v ":$original_group:" | head -1 | cut -d: -f3`

Bah, cut and paste error. Let me send a v2

It only worked because $original_group == $original_owner

:-/

-- Steve