netdev - Re: [Security] TIPC security issues

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Message-Id: <20101028.114941.39177249.davem@davemloft.net>
Date:	Thu, 28 Oct 2010 11:49:41 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	andy.grover@...cle.com
Cc:	torvalds@...ux-foundation.org, jon.maloy@...csson.com,
	netdev@...r.kernel.org, drosenberg@...curity.com,
	security@...nel.org, allan.stephens@...driver.com,
	rds-devel@....oracle.com
Subject: Re: [Security] TIPC security issues

From: Andy Grover <andy.grover@...cle.com>
Date: Thu, 28 Oct 2010 11:45:04 -0700

> Yes that's right, it's to map a memory region that will be the target
> of an RDMA operation. I don't know why struct rds_iovec was used
> instead of struct iovec, but I think we're stuck, since it's part of
> our socket API.
> 
> I'll send DaveM patches to fix those two immediately-identified
> problems today, and we'll take a good long look at the rest of the
> code for further issues.

FWIW, I would strongly suggest that you copy the iovecs into the
kernel before parsing them like sys_sendmsg() and sys_recvmsg() do in
net/socket.c as part of these fixes.
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