lkml.org 
[lkml]   [2020]   [Apr]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH] Fix: buffer overflow during hvc_alloc().
From
Date
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

\
 
 \ /
  Last update: 2020-04-06 02:32    [W:0.040 / U:1.268 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site