linux-kernel - Re: [PATCH] tpm: fix race condition in tpm_common

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Message-ID: <20180523132318.GE363@linux.intel.com>
Date:   Wed, 23 May 2018 16:23:18 +0300
From:   Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
To:     Tadeusz Struk <tadeusz.struk@...el.com>
Cc:     jgg@...pe.ca, linux-integrity@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-security-module@...r.kernel.org
Subject: Re: [PATCH] tpm: fix race condition in tpm_common_write()

On Tue, May 22, 2018 at 10:32:46AM -0700, Tadeusz Struk wrote:
> There is a race condition in tpm_common_write function allowing two
> threads on the same /dev/tpm<N>, or two different applications on
> the same /dev/tpmrm<N> to overwrite eachother requests/responses.
> 
> Signed-off-by: Tadeusz Struk <tadeusz.struk@...el.com>

Ouch o_O Do you have a fixes tag for this one?

Thank you.

Reviewed-by: Jarkko Sakkien <jarkko.sakkinen@...ux.intel.com>

/Jarkko