Re: Add Morton,Peter and David for discussion//Re: [PATCH -next] uprobes: fix two zero old_folio bugs in __replace_page()

[David Hildenbrand]

On 19.02.25 16:22, Oleg Nesterov wrote:
> On 02/18, Tong Tiangen wrote:
> > OK, Before your rewrite last merged, How about i change the solution to
> > just reject them immediately after get_user_page_vma_remote()？
>
> I agree, uprobe_write_opcode() should simply fail if is_zero_page(old_page).

Yes. That's currently only syzkaller that triggers it, not some sane use 
case.

--
Cheers,

David / dhildenb