Re: [PATCH v2] drm/omap: dsi: do not copy isr table

[Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>]

Hi,

On 04/08/2026 11:49, Andreas Kemnade wrote:
> On Wed, 29 Jul 2026 11:23:21 +0300
> Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> wrote:
> 
>> Hi,
>>
>> On 02/07/2026 18:27, Andreas Kemnade wrote:
>>> To te able to unregister stuff from isrs, the corresponding table was
>>> copied.  Nobody seems to unregister stuff that way, so it does not help.
>>> But there are stack-allocated objects passed to these isrs giving chances
>>> of UAF of these objects if irqs are unregistered while they are handled,
>>> so better do not copy that table.
>>>
>>> Fixes: 4ae2ddddf44cd ("OMAP: DSS2: DSI: Add ISR support")
>>> Signed-off-by: Andreas Kemnade <andreas@kemnade.info>
>>> ---
>>> If this gets backported, it should be re-checked that
>>> no isr unregisters itself in older kernel versions`.
>>> ---
>>> Changes in v2:
>>> - remove variable definition (Sashiko)
>>> - Link to v1: https://patch.msgid.link/20260629-dsi-uaf-v1-1-a5e894f4e4d1@kemnade.info
>>
>> Looks good to me, applying to drm-misc-next.
>>
> It seems not to be on linux-next. somehow this did fall through the cracks?
It did. I applied it to my local dim branch, then went looking for other 
omapdrm patches (the dsi one), which took a while and... yes, forgot to 
push...

Pushed now to drm-misc-next.

  Tomi