linux-kernel - Re: [PATCH] tpm: Fix tpm

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Message-ID: <20190916074657.GA26795@linux.intel.com>
Date:   Mon, 16 Sep 2019 10:46:57 +0300
From:   Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
To:     linux-integrity@...r.kernel.org
Cc:     Mimi Zohar <zohar@...ux.ibm.com>, stable@...r.kernel.org,
        Peter Huewe <peterhuewe@....de>,
        Jason Gunthorpe <jgg@...pe.ca>, Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] tpm: Fix tpm_send() length calculation

On Mon, Sep 16, 2019 at 10:35:35AM +0300, Jarkko Sakkinen wrote:
> Set the size of the tpm_buf correctly. Now it is set to the header
> length by tpm_buf_init().
> 
> Reported-by: Mimi Zohar <zohar@...ux.ibm.com>
> Cc: stable@...r.kernel.org
> Fixes: 412eb585587a ("use tpm_buf in tpm_transmit_cmd() as the IO parameter")
> Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>

This is all wrong in all possible ways :-( My excuse is the overnight
flight last night (no sleep). Mimi, I think what you first proposed as
the fix is the right way tho fix it. I'll take some sleep and after that
I'll make a legit commit with fix and a commit message explaining the
root cause.

Please try to ignore this.

/Jarkko