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From: Ingo Molnar <mingo@kernel.org>
To: Taeung Song <treeze.taeung@gmail.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>,
	linux-kernel@vger.kernel.org, jolsa@redhat.com,
	namhyung@kernel.org, Ingo Molnar <mingo@redhat.com>,
	Peter Zijlstra <a.p.zijlstra@chello.nl>
Subject: Re: [PATCH v1] perf report: Fix owner error when reading perf.data
Date: Thu, 1 Oct 2015 11:10:31 +0200	[thread overview]
Message-ID: <20151001091031.GA6543@gmail.com> (raw)
In-Reply-To: <1443690214-1194-1-git-send-email-treeze.taeung@gmail.com>


* Taeung Song <treeze.taeung@gmail.com> wrote:

> If perf.data file is owned by some user,
> it can't be read even if current user is root.

That's intentional: to keep a malicious local user from passing a perf.data to 
root who does 'perf report' accidentally or in the wrong directory.

root can copy or chown it to himself - or we could add some --really-force flag 
for that.

Thanks,

	Ingo

  reply	other threads:[~2015-10-01  9:10 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-10-01  9:03 [PATCH v1] perf report: Fix owner error when reading perf.data Taeung Song
2015-10-01  9:10 ` Ingo Molnar [this message]
2015-10-01 12:26   ` Taeung Song
2015-10-01 12:54     ` Arnaldo Carvalho de Melo

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