Re: [PATCH] drivers/net/wimax/i2400m/fw.c fix possible double free

[David Miller]

From: Darren Jenkins <darrenrjenkins@xxxxxxxxx>
Date: Thu, 18 Mar 2010 19:46:48 +1100

> 
> On Thu, Mar 18, 2010 at 9:10 AM, Inaky Perez-Gonzalez
> <inaky.perez-gonzalez@xxxxxxxxx> wrote:
> 
>> If krealloc() fails to aallocate a new pointer, the old block is
>> unmodified, so by doing this you are leaking a buffer allocation.
> 
> It seems you are right.
> So now understanding correctly how krealloc() works I can see that the
> double kfree() can only actually happen if the el_size parameter to
> i2400m_zrealloc_2x() is zero, and it isn't at the two call sites.
> 
> So this was a false positive and I am sorry for the noise.

No problem, at least the code got audited :-)
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