On Wed, Oct 12, 2022 at 08:24:39PM -0400, Sasha Levin wrote: > From: GUO Zihua <guozihua@xxxxxxxxxx> > > [ Upstream commit 513d9a61156d79dd0979c4ad400c8587f52cbb9d ] > > CFI (Control Flow Integrity) is a safety feature allowing the system to > detect and react should a potential control flow hijacking occurs. In > particular, the Forward-Edge CFI protects indirect function calls by > ensuring the prototype of function that is actually called matches the > definition of the function hook. > > Since Linux now supports CFI, it will be a good idea to fix mismatched > return type for implementation of hooks. Otherwise this would get > cought out by CFI and cause a panic. Not needed in any stable branch, please drop from all. thanks, greg k-h
