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.vet...@intel.com> > Cc: Helge Deller <del...@gmx.de> > Cc: Daniel Vetter <dan...@ffwll.ch> > Cc: Greg Kroah-Hartman <gre...@linuxfoundation.org> > Cc: Tetsuo Handa <penguin-ker...@i-love.sakura.ne.jp> > Cc: Du Cheng <duche...@gmail.com> > Cc: Claudio Suarez <c...@net-c.es> > Cc: Thomas Zimmermann <tzimmerm...@suse.de> Acked-by: Sam Ravnborg <s...@ravnborg.org>
- Re: [Intel-gfx] [PATCH 03/21] fbcon: Resto... Helge Deller
- Re: [Intel-gfx] [PATCH 03/21] fbcon: R... Daniel Vetter
- Re: [Intel-gfx] [PATCH 03/21] fbc... Helge Deller
- Re: [Intel-gfx] [PATCH 03/21]... Daniel Vetter
- [Intel-gfx] [PATCH 04/21] fbcon: delete a few unneeded ... Daniel Vetter
- Re: [Intel-gfx] [PATCH 04/21] fbcon: delete a few ... Sam Ravnborg
- Re: [Intel-gfx] [PATCH 04/21] fbcon: delete a few ... Geert Uytterhoeven
- [Intel-gfx] [PATCH 07/21] fbdev/sysfs: Fix locking Daniel Vetter
- [Intel-gfx] [PATCH 05/21] fbcon: Introduce wrapper for ... Daniel Vetter
- Re: [Intel-gfx] [PATCH 05/21] fbcon: Introduce wra... Sam Ravnborg
- [Intel-gfx] [PATCH 09/21] fbcon: Replace FBCON_FLAGS_IN... Daniel Vetter
- Re: [Intel-gfx] [PATCH 09/21] fbcon: Replace FBCON... Thomas Zimmermann
- Re: [Intel-gfx] [PATCH 09/21] fbcon: Replace F... Geert Uytterhoeven
- Re: [Intel-gfx] [PATCH 09/21] fbcon: Replace FBCON... Sam Ravnborg
- [Intel-gfx] [PATCH 12/21] fbcon: Ditch error handling f... Daniel Vetter
- [Intel-gfx] [PATCH 08/21] fbcon: Use delayed work for c... Daniel Vetter
- [Intel-gfx] [PATCH 10/21] fb: Delete fb_info->queue Daniel Vetter
- Re: [Intel-gfx] [PATCH 10/21] fb: Delete fb_info-&... Sam Ravnborg
- Re: [Intel-gfx] [PATCH 10/21] fb: Delete fb_in... Daniel Vetter