On Sun, 29 Aug 2021 11:59:12 +0100, Lennie Dymoke-Bradshaw wrote: >I realise I may be inviting a "YDNRC" but I think the REFRPROT (not REFPROT) >option only protects entire pages of a module. > Me, too.
> ...If a module is 5K long then >the last 1K is unprotected. Always sounded like an opportunity for >exploitation; bit like a buffer overrun. > That would necessarily be inadvertent. It should be impossible for untrustworthy code to modify content of an Authorized address space. FSVO "should". IBM has deemed storage/paging optimization to have greater than checking for bad code. -- gil ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
