Hi Javier,
On Fri, May 06, 2022 at 03:22:25PM +0200, Javier Martinez Canillas wrote:
Commit d258d00fb9c7 ("fbdev: efifb: Cleanup fb_info in .fb_destroy rather than .remove") attempted to fix a use-after-free error due driver freeing the fb_info in the .remove handler instead of doing it in .fb_destroy.
But ironically that change introduced yet another use-after-free since the fb_info was still used after the free.
This should fix for good by freeing the fb_info at the end of the handler.
Fixes: d258d00fb9c7 ("fbdev: efifb: Cleanup fb_info in .fb_destroy rather than .remove") Reported-by: Ville Syrjälä ville.syrjala@linux.intel.com Reported-by: Andrzej Hajda andrzej.hajda@intel.com Signed-off-by: Javier Martinez Canillas javierm@redhat.com
Reviewed-by: Andi Shyti andi.shyti@linux.intel.com
Andi