linux-kernel - Re: [PATCH] perf tools: Fix potential array out of bounce accessing

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Message-ID: <20150901100015.GB12968@krava.brq.redhat.com>
Date:	Tue, 1 Sep 2015 12:00:15 +0200
From:	Jiri Olsa <jolsa@...hat.com>
To:	Wang Nan <wangnan0@...wei.com>
Cc:	acme@...nel.org, linux-kernel@...r.kernel.org, lizefan@...wei.com,
	pi3orama@...wei.com, Arnaldo Carvalho de Melo <acme@...hat.com>,
	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>,
	"David S. Miller" <davem@...emloft.net>,
	Matt Fleming <matt@...sole-pimps.org>,
	Jiri Olsa <jolsa@...nel.org>
Subject: Re: [PATCH] perf tools: Fix potential array out of bounce accessing

On Tue, Sep 01, 2015 at 03:29:44AM +0000, Wang Nan wrote:
> There is a problem in dwarf-regs.c of sh, sparc and x86 that it is
> possible to make an out-of-bound array accessing when searching
> register names. This patch fixes it by replacing '<=' to '<', so when
> register (number == XXX_MAX_REGS), get_arch_regstr() returns NULL.
> 

Acked-by: Jiri Olsa <jolsa@...nel.org>

thanks,
jirka
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