Re: [PATCH] iovec: make sure the caller actually wants anything in memcpy_fromiovecend

[David Miller]

From: Sasha Levin <sasha.levin@xxxxxxxxxx>
Date: Thu, 31 Jul 2014 23:00:35 -0400

> Check for cases when the caller requests 0 bytes instead of running off
> and dereferencing potentially invalid iovecs.
> 
> Signed-off-by: Sasha Levin <sasha.levin@xxxxxxxxxx>

Applied, thanks.

BTW, if you look at the function above this one (memcpy_toiovecend) it avoids
this issue by encompassing all of the logic in a top-level loop which terminates
when len <= 0.
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