Let me know if I can go ahead and fix both the uaccess stub and strcpy code.
On Mon, Nov 9, 2015 at 3:45 PM, Davide Libenzi <[email protected]> wrote: > On Mon, Nov 9, 2015 at 3:41 PM, Davide Libenzi <[email protected]> > wrote: > >> More importantly, what happens if the user picks an address close to the >>> border of the an area where it does not have access, but the string goes >>> into that area. For instance, in copy_to_user, I think the user could >>> pick UWLIM - 1, then trick the kernel into writing above that into >>> memory that is read-only. >>> >> >> The code assume that there is one (at least) separation page between user >> and kernel VMAs. >> Should have made it more clear. >> > > Never mind, sorry, that needs fixing. > > -- You received this message because you are subscribed to the Google Groups "Akaros" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. For more options, visit https://groups.google.com/d/optout.
