From: Andrew Donnellan <ajd@linux.ibm.com>
To: andrew@daynix.com, virtualization@lists.linux-foundation.org
Cc: gregkh@linuxfoundation.org, linuxppc-dev@lists.ozlabs.org,
linux-kernel@vger.kernel.org, jslaby@suse.com
Subject: Re: [PATCH] Fix: buffer overflow during hvc_alloc().
Date: Mon, 6 Apr 2020 10:31:40 +1000 [thread overview]
Message-ID: <a8ab8fe3-3200-9591-7572-abbbd2d505ff@linux.ibm.com> (raw)
In-Reply-To: <20200405204024.1007843-1-andrew@daynix.com>
On 6/4/20 6:40 am, andrew@daynix.com wrote:
> From: Andrew Melnychenko <andrew@daynix.com>
>
> If there is a lot(more then 16) of virtio-console devices
> or virtio_console module is reloaded
> - buffers 'vtermnos' and 'cons_ops' are overflowed.
> In older kernels it overruns spinlock which leads to kernel freezing:
> https://bugzilla.redhat.com/show_bug.cgi?id=1786239
>
This Bugzilla report isn't publicly accessible. Can you include a
relevant summary here and/or make the report publicly viewable?
If it does indeed lead to a kernel freeze, this should be tagged with a
Fixes: and a Cc: stable@vger.kernel.org.
--
Andrew Donnellan OzLabs, ADL Canberra
ajd@linux.ibm.com IBM Australia Limited
prev parent reply other threads:[~2020-04-06 0:34 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-05 20:40 [PATCH] Fix: buffer overflow during hvc_alloc() andrew
2020-04-06 0:31 ` Andrew Donnellan [this message]
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