| Date | Thu, 3 Feb 2022 22:25:52 +0100 | From | Sam Ravnborg <> | Subject | Re: [PATCH 05/21] fbcon: Introduce wrapper for console->fb_info lookup |
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On Mon, Jan 31, 2022 at 10:05:36PM +0100, Daniel Vetter wrote: > Half of it is protected by console_lock, but the other half is a lot > more awkward: Registration/deregistration of fbdev are serialized, but > we don't really clear out anything in con2fb_map and so there's > potential for use-after free mixups. > > First step is to encapsulate the lookup. > > Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> > Cc: Helge Deller <deller@gmx.de> > Cc: Daniel Vetter <daniel@ffwll.ch> > Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> > Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> > Cc: Du Cheng <ducheng2@gmail.com> > Cc: Claudio Suarez <cssk@net-c.es> > Cc: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Sam Ravnborg <sam@ravnborg.org>
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