linux-kernel - Re: [PATCH 09/15] perf tools: validate perf event header size

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Message-ID: <51CBF155.9050605@intel.com>
Date:	Thu, 27 Jun 2013 11:01:25 +0300
From:	Adrian Hunter <adrian.hunter@...el.com>
To:	Namhyung Kim <namhyung@...nel.org>
CC:	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	linux-kernel@...r.kernel.org, David Ahern <dsahern@...il.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Jiri Olsa <jolsa@...hat.com>, Mike Galbraith <efault@....de>,
	Paul Mackerras <paulus@...ba.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Stephane Eranian <eranian@...gle.com>
Subject: Re: [PATCH 09/15] perf tools: validate perf event header size

On 26/06/13 04:44, Namhyung Kim wrote:
> Hi Adrian,
> 
> On Mon, 24 Jun 2013 16:16:06 +0300, Adrian Hunter wrote:
>> 'size' includes the header so must be at least
>> 'sizeof(struct perf_event_header)'.  Error out
>> immediately if that is not the case.  Also
> 
> Just out of curiosity.
> 
> Do you have an experience it really matters?  AFAICS such an invalid
> sample should be detected during sample processing.

The patch was written a long time ago so I don't remember sorry.

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