On 2020-05-20 02:38, Jiri Slaby wrote:
On 15. 05. 20, 1:22, rana...@codeaurora.org wrote:
On 2020-05-13 00:04, Greg KH wrote:
On Tue, May 12, 2020 at 02:39:50PM -0700, rana...@codeaurora.org
wrote:
On 2020-05-12 01:25, Greg KH wrote:
> On Tue, May 12, 2020 at 09:22:15AM +0200, Jiri Slaby wrote
On 15. 05. 20, 1:22, rana...@codeaurora.org wrote:
> On 2020-05-13 00:04, Greg KH wrote:
>> On Tue, May 12, 2020 at 02:39:50PM -0700, rana...@codeaurora.org wrote:
>>> On 2020-05-12 01:25, Greg KH wrote:
>>> > On Tue, May 12, 2020 at 09:22:15AM +0200, Jiri Slaby wrote:
>>> > > commit bdb498c2004061
On 2020-05-15 00:30, Greg KH wrote:
On Thu, May 14, 2020 at 04:22:10PM -0700, rana...@codeaurora.org wrote:
On 2020-05-13 00:04, Greg KH wrote:
> On Tue, May 12, 2020 at 02:39:50PM -0700, rana...@codeaurora.org wrote:
> > On 2020-05-12 01:25, Greg KH wrote:
> > > On Tue, May 12, 2020 at 09:22:15
On Thu, May 14, 2020 at 04:22:10PM -0700, rana...@codeaurora.org wrote:
> On 2020-05-13 00:04, Greg KH wrote:
> > On Tue, May 12, 2020 at 02:39:50PM -0700, rana...@codeaurora.org wrote:
> > > On 2020-05-12 01:25, Greg KH wrote:
> > > > On Tue, May 12, 2020 at 09:22:15AM +0200, Jiri Slaby wrote:
> >
On 2020-05-13 00:04, Greg KH wrote:
On Tue, May 12, 2020 at 02:39:50PM -0700, rana...@codeaurora.org wrote:
On 2020-05-12 01:25, Greg KH wrote:
> On Tue, May 12, 2020 at 09:22:15AM +0200, Jiri Slaby wrote:
> > On 11. 05. 20, 9:39, Greg KH wrote:
> > > On Mon, May 11, 2020 at 12:23:58AM -0700, ra
On Tue, May 12, 2020 at 02:39:50PM -0700, rana...@codeaurora.org wrote:
> On 2020-05-12 01:25, Greg KH wrote:
> > On Tue, May 12, 2020 at 09:22:15AM +0200, Jiri Slaby wrote:
> > > On 11. 05. 20, 9:39, Greg KH wrote:
> > > > On Mon, May 11, 2020 at 12:23:58AM -0700, rana...@codeaurora.org wrote:
> >
On 2020-05-12 01:25, Greg KH wrote:
On Tue, May 12, 2020 at 09:22:15AM +0200, Jiri Slaby wrote:
On 11. 05. 20, 9:39, Greg KH wrote:
> On Mon, May 11, 2020 at 12:23:58AM -0700, rana...@codeaurora.org wrote:
>> On 2020-05-09 23:48, Greg KH wrote:
>>> On Sat, May 09, 2020 at 06:30:56PM -0700, rana.
On Tue, May 12, 2020 at 09:22:15AM +0200, Jiri Slaby wrote:
> On 11. 05. 20, 9:39, Greg KH wrote:
> > On Mon, May 11, 2020 at 12:23:58AM -0700, rana...@codeaurora.org wrote:
> >> On 2020-05-09 23:48, Greg KH wrote:
> >>> On Sat, May 09, 2020 at 06:30:56PM -0700, rana...@codeaurora.org wrote:
>
On 11. 05. 20, 9:39, Greg KH wrote:
> On Mon, May 11, 2020 at 12:23:58AM -0700, rana...@codeaurora.org wrote:
>> On 2020-05-09 23:48, Greg KH wrote:
>>> On Sat, May 09, 2020 at 06:30:56PM -0700, rana...@codeaurora.org wrote:
On 2020-05-06 02:48, Greg KH wrote:
> On Mon, Apr 27, 2020 at 08:
On Mon, May 11, 2020 at 12:34:44AM -0700, rana...@codeaurora.org wrote:
> On 2020-05-11 00:23, rana...@codeaurora.org wrote:
> > On 2020-05-09 23:48, Greg KH wrote:
> > > On Sat, May 09, 2020 at 06:30:56PM -0700, rana...@codeaurora.org
> > > wrote:
> > > > On 2020-05-06 02:48, Greg KH wrote:
> > >
On Mon, May 11, 2020 at 12:23:58AM -0700, rana...@codeaurora.org wrote:
> On 2020-05-09 23:48, Greg KH wrote:
> > On Sat, May 09, 2020 at 06:30:56PM -0700, rana...@codeaurora.org wrote:
> > > On 2020-05-06 02:48, Greg KH wrote:
> > > > On Mon, Apr 27, 2020 at 08:26:01PM -0700, Raghavendra Rao Anant
On 2020-05-11 00:23, rana...@codeaurora.org wrote:
On 2020-05-09 23:48, Greg KH wrote:
On Sat, May 09, 2020 at 06:30:56PM -0700, rana...@codeaurora.org
wrote:
On 2020-05-06 02:48, Greg KH wrote:
> On Mon, Apr 27, 2020 at 08:26:01PM -0700, Raghavendra Rao Ananta wrote:
> > Potentially, hvc_open(
On 2020-05-09 23:48, Greg KH wrote:
On Sat, May 09, 2020 at 06:30:56PM -0700, rana...@codeaurora.org wrote:
On 2020-05-06 02:48, Greg KH wrote:
> On Mon, Apr 27, 2020 at 08:26:01PM -0700, Raghavendra Rao Ananta wrote:
> > Potentially, hvc_open() can be called in parallel when two tasks calls
> >
On Sat, May 09, 2020 at 06:30:56PM -0700, rana...@codeaurora.org wrote:
> On 2020-05-06 02:48, Greg KH wrote:
> > On Mon, Apr 27, 2020 at 08:26:01PM -0700, Raghavendra Rao Ananta wrote:
> > > Potentially, hvc_open() can be called in parallel when two tasks calls
> > > open() on /dev/hvcX. In such a
On 2020-05-06 02:48, Greg KH wrote:
On Mon, Apr 27, 2020 at 08:26:01PM -0700, Raghavendra Rao Ananta wrote:
Potentially, hvc_open() can be called in parallel when two tasks calls
open() on /dev/hvcX. In such a scenario, if the
hp->ops->notifier_add()
callback in the function fails, where it se
On Mon, Apr 27, 2020 at 08:26:01PM -0700, Raghavendra Rao Ananta wrote:
> Potentially, hvc_open() can be called in parallel when two tasks calls
> open() on /dev/hvcX. In such a scenario, if the hp->ops->notifier_add()
> callback in the function fails, where it sets the tty->driver_data to
> NULL,
> Hence, serialize hvc_open and check if tty->private_data is NULL before
> proceeding ahead.
How do you think about to add the tag “Fixes” because of adjustments
for the data synchronisation?
…
> +++ b/drivers/tty/hvc/hvc_console.c
…
@@ -384,6 +394,8 @@ static int hvc_open(struct tty_struct *tt
Potentially, hvc_open() can be called in parallel when two tasks calls
open() on /dev/hvcX. In such a scenario, if the hp->ops->notifier_add()
callback in the function fails, where it sets the tty->driver_data to
NULL, the parallel hvc_open() can see this NULL and cause a memory abort.
Hence, seria
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