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Message-ID: <20201013143348.GA153769@linux.intel.com>
Date: Tue, 13 Oct 2020 17:33:48 +0300
From: Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
To: Tyler Hicks <tyhicks@...ux.microsoft.com>
Cc: Kai-Heng Feng <kai.heng.feng@...onical.com>,
Mimi Zohar <zohar@...ux.ibm.com>,
linux-integrity@...r.kernel.org,
open list <linux-kernel@...r.kernel.org>
Subject: Re: [Regression] "tpm: Require that all digests are present in
TCG_PCR_EVENT2 structures" causes null pointer dereference
On Tue, Oct 13, 2020 at 09:31:39AM -0500, Tyler Hicks wrote:
> Sorry for coming in so late, I've been on an extended vacation with
> little connectivity.
>
> On 2020-10-09 19:06:54, Jarkko Sakkinen wrote:
> > On Thu, Oct 08, 2020 at 05:09:06PM +0800, Kai-Heng Feng wrote:
> > > > I do not have yet any reasonable answer to this and my v5.10 PR is
> > > > running late. Does everyone agree that I should revert the patch?
> > >
> > > Given that there are multiple users confirmed reverting the commit
> > > helps, can you please revert it and Cc: linux-stable?
> >
> > I already sent the PR, but I schedule the revert to my rc2 PR.
>
> I'll try to better understand what's going on. I, too, am confused about
> how the change would introduce the reported regression. I've only
> skimmed the thread so far but it feels like there's possibly a latent
> issue that the change may be uncovering on certain systems.
>
> FWIW, we've had this patch applied to our internal kernel for a month
> and haven't seen any issues.
>
> Tyler
Tyler, it will be a while before even rc1 is out, i.e. there's window
for investigation.
/Jarkko
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