linux-kernel - Re: [PATCH] KEYS: trusted: fix crash when TPM/TEE are built as module

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Date:   Mon, 21 Feb 2022 00:10:06 +0100
From:   Jarkko Sakkinen <jarkko@...nel.org>
To:     Ahmad Fatoum <a.fatoum@...gutronix.de>
Cc:     Tong Zhang <ztong0001@...il.com>,
        James Bottomley <jejb@...ux.ibm.com>,
        Mimi Zohar <zohar@...ux.ibm.com>,
        David Howells <dhowells@...hat.com>,
        James Morris <jmorris@...ei.org>,
        "Serge E. Hallyn" <serge@...lyn.com>,
        Sumit Garg <sumit.garg@...aro.org>,
        linux-integrity@...r.kernel.org, keyrings@...r.kernel.org,
        linux-security-module@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Andreas Rammhold <andreas@...mhold.de>
Subject: Re: [PATCH] KEYS: trusted: fix crash when TPM/TEE are built as module

On Sun, Feb 06, 2022 at 11:36:48AM +0100, Ahmad Fatoum wrote:
> Hello Tong,
> 
> On 04.02.22 21:03, Tong Zhang wrote:
> > when TCG_TPM and TEE are built as module, trusted_key_sources will be an
> > empty array, loading it won't do what it is supposed to do and unloading
> > it will cause kernel crash.
> 
> Jarkko reported picking up an equivalent fix two months ago:
> https://lkml.kernel.org/keyrings/YadRAWbl2aiapf8l@iki.fi/
> 
> But it seems to have never made it to Linus.

Sorry, was not done purposely. I pushed the original fix.

BR, Jarkko