netdev - Re: [PATCH 2/2] net: Fix potential memory leak

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Message-ID: <1317125257.2541.17.camel@edumazet-HP-Compaq-6005-Pro-SFF-PC>
Date:	Tue, 27 Sep 2011 14:07:37 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Huajun Li <huajun.li.lee@...il.com>
Cc:	David Miller <davem@...emloft.net>, netdev <netdev@...r.kernel.org>
Subject: Re: [PATCH 2/2] net: Fix potential memory leak

Le mardi 27 septembre 2011 à 17:58 +0800, Huajun Li a écrit :

> To emulate memory allocation fail case, I added code to return
> '-ENOMEM' from flow_cache_cpu_prepare(...) even if it could allocate
> memory correctly, but did not find panic on my box, maybe the latest
> code changed greatly than 2.6.37. :)

To panic the box, you need to leave a NULL pointer somewhere and
dereference it later, when code assumes it cant be NULL ;)



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