linux-kernel - Re: [PATCH] eeprom: at24: Add support for large EEPROMs connected to SMBus adapters

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Message-ID: <20150319213937.GA899@katana>
Date:	Thu, 19 Mar 2015 22:39:37 +0100
From:	Wolfram Sang <wsa@...-dreams.de>
To:	Guenter Roeck <linux@...ck-us.net>
Cc:	linux-i2c@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] eeprom: at24: Add support for large EEPROMs connected to
 SMBus adapters


> Turns out this is really easy to reproduce. One process reads
> the eeprom over and over again, another runs i2cdump in a loop,
> and voila ... lots of corruptions. Scary, especially considering
> how wide-spread this kind of i2c access is in the kernel.

A coccinelle script should at least be able to find vulnerable code
paths, maybe even fix it. But not today for me... Thanks for testing and
sharing the results!


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