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From:   David Laight <David.Laight@ACULAB.COM>
To:     'Will Deacon' <will@kernel.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
CC:     "kernel-team@android.com" <kernel-team@android.com>,
        "akpm@linux-foundation.org" <akpm@linux-foundation.org>,
        "K . Prasad" <prasad@linux.vnet.ibm.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        "Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
        Frederic Weisbecker <frederic@kernel.org>,
        Christoph Hellwig <hch@lst.de>,
        Quentin Perret <qperret@google.com>,
        Alexei Starovoitov <ast@kernel.org>,
        Masami Hiramatsu <mhiramat@kernel.org>
Subject: RE: [PATCH 0/3] Unexport kallsyms_lookup_name() and
 kallsyms_on_each_symbol()
Thread-Topic: [PATCH 0/3] Unexport kallsyms_lookup_name() and
 kallsyms_on_each_symbol()
Thread-Index: AQHV6Kw/G1ZhChcu+kqJa3R2blwF06glyM6A
Date:   Fri, 21 Feb 2020 15:41:35 +0000
Message-ID: <d31bc2e2718247a7b1db38593564262e@AcuMS.aculab.com>
References: <20200221114404.14641-1-will@kernel.org>
In-Reply-To: <20200221114404.14641-1-will@kernel.org>
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From: Will Deacon
> Sent: 21 February 2020 11:44
> Hi folks,
> 
> Despite having just a single modular in-tree user that I could spot,
> kallsyms_lookup_name() is exported to modules and provides a mechanism
> for out-of-tree modules to access and invoke arbitrary, non-exported
> kernel symbols when kallsyms is enabled.

Now where did I put that kernel code that opens /proc/kallsyms and
then reads it to find the addresses of symbols ...

	David

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