On Mon 19-08-24 12:33:17, Linus Torvalds wrote: > On Mon, 19 Aug 2024 at 12:23, Barry Song <21cnbao@xxxxxxxxx> wrote: > > > > > > That could be an exploit taking advantage of those improper callers, > > So? > > FIX THE BUGGY CODE. > > Don't make insane and incorrect changes to the MM code and spread > Fear, Uncertainty and Doubt. > > > thus it wouldn’t necessarily result in an immediate oops in callers but > > result in an exploit > > No. Any bug can be an exploit. Don't try to make this something > special by calling it an exploit. > > NULL pointer dereferences are some of the *least* worrisome bugs, > because we don't allow people to mmap the NULL area anyway. > > So just stop spreading FUD. We don't improve the kernel by making > excuses for bugs, we improve it by fixing things. I really do not think that accusing Barry from spreading FUD is fair! I believe there is a good intention behind this initiative and he has used tools that he has available. So rather than throwing FUD arguments I would really like to stick to a technical discussion, please. -- Michal Hocko SUSE Labs
