On Thu, 2015-10-15 at 14:25 +0200, Sabrina Dubroca wrote:
> Without this length argument, we can read past the end of the iovec
> in
> memcpy_toiovec because we have no way of knowing the total length of
> the
> iovec's buffers.
>
> This is needed for stable kernels where 89c22d8c3b27 ("net: Fix skb
> csum races when peeking") has been backported but that don't have the
> ioviter conversion, which is almost all the stable trees <= 3.18.
>
> This also fixes a kernel crash for NFS servers when the client uses
> -onfsvers=3,proto=udp to mount the export.
>
> Signed-off-by: Sabrina Dubroca <s...@queasysnail.net>
> Reviewed-by: Hannes Frederic Sowa <han...@stressinduktion.org>
> ---
> Note: this is based on 3.14.54, as 3.18 doesn't need the hunk for
> net/rxrpc/ar-recvmsg.c, but all older stable kernels do.
[...]
Queued up for 3.2, thanks.
Ben.
--
Ben Hutchings
Everything should be made as simple as possible, but not simpler.
- Albert Einstein
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