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From: Lee Jones <lee.jones@linaro.org>
To: Greg KH <gregkh@linuxfoundation.org>
Cc: stable@vger.kernel.org, asml.silence@gmail.com, axboe@kernel.dk,
	linux-kernel@vger.kernel.org,
	syzbot+b0003676644cf0d6acc4@syzkaller.appspotmail.com
Subject: Re: [PATCH v5.10.y 1/1] Revert "io_uring: reinforce cancel on flush during exit"
Date: Wed, 3 Nov 2021 07:38:10 +0000	[thread overview]
Message-ID: <YYI8YjbE5xTSLLn4@google.com> (raw)
In-Reply-To: <YYFfIk2CQaFI0Zdg@kroah.com>

On Tue, 02 Nov 2021, Greg KH wrote:

> On Tue, Nov 02, 2021 at 03:49:30PM +0000, Lee Jones wrote:
> > This reverts commit 88dbd085a51ec78c83dde79ad63bca8aa4272a9d.
> > 
> > Causes the following Syzkaller reported issue:
> > 
> > LINK: https://syzkaller.appspot.com/bug?extid=b0003676644cf0d6acc4
> 
> "Link:"?

Sure.

> > Reported-by: syzbot+b0003676644cf0d6acc4@syzkaller.appspotmail.com
> > Signed-off-by: Lee Jones <lee.jones@linaro.org>
> 
> Why does the patch here cause this error?  Is it due to the backport
> being different than what went into Linus's tree, or something else?

The patch is the same.

I need to do some more testing, but I assume it *was* also broken in
Mainline until the whole section was rewritten.  Unfortunately, the
patch which does that does not apply to v5.10.y.  Again, I can look
into this, but I'm not quite sure how far the rabbit hole goes.

> The original commit did fix a real issue, what should we do now to
> resolve that issue in 5.10.y instead?

Ideally I'd like the original author and/or the domain experts to have
a look and chime in here.

-- 
Lee Jones [李琼斯]
Senior Technical Lead - Developer Services
Linaro.org │ Open source software for Arm SoCs
Follow Linaro: Facebook | Twitter | Blog

      reply	other threads:[~2021-11-03  7:38 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-11-02 15:49 [PATCH v5.10.y 1/1] Revert "io_uring: reinforce cancel on flush during exit" Lee Jones
2021-11-02 15:54 ` Greg KH
2021-11-03  7:38   ` Lee Jones [this message]

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