Re: [PATCH 1/1] vhost: Protect the virtqueue from being cleared whilst still in use

[Lee Jones]

On Fri, 04 Mar 2022, Michael S. Tsirkin wrote:

> On Wed, Mar 02, 2022 at 07:54:21AM +0000, Lee Jones wrote:
> > vhost_vsock_handle_tx_kick() already holds the mutex during its call
> > to vhost_get_vq_desc().  All we have to do is take the same lock
> > during virtqueue clean-up and we mitigate the reported issues.
> > 
> > Link: https://syzkaller.appspot.com/bug?extid=279432d30d825e63ba00
> > 
> > Cc: <stable@xxxxxxxxxxxxxxx>
> > Reported-by: syzbot+adc3cb32385586bec859@xxxxxxxxxxxxxxxxxxxxxxxxx
> > Signed-off-by: Lee Jones <lee.jones@xxxxxxxxxx>
> 
> OK so please post series with this and the warning
> cleaned up comments and commit logs explaining that
> this is just to make debugging easier in case
> we have issues in the future, it's not a bugfix.

No problem.

Just to clarify, drop Cc: Stable also?

-- 
Lee Jones [李琼斯]
Principal Technical Lead - Developer Services
Linaro.org │ Open source software for Arm SoCs
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