PS5

From Wiki - GameHacking.org
Revision as of 07:43, 28 May 2021 by Dlevere (talk | contribs) (Created page with "'''SMAP bypass vulnerability disclosed''' [https://wololo.net/2021/05/28/ps5-smap-bypass-vulnerability-disclosed/ SMAP bypass vulnerability disclosed] Without Supervisor Mod...")
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to: navigation, search

SMAP bypass vulnerability disclosed

SMAP bypass vulnerability disclosed

Without Supervisor Mode Access Prevention, supervisor code usually has full read and write access to user-space memory mappings (or has the ability to obtain full access).
This has led to the development of several security exploits, including privilege escalation exploits, which operate by causing the kernel to access user space memory when it did not intend to.
Operating systems can block these exploits by using SMAP to force unintended user space memory accesses to trigger page faults.
Additionally, SMAP can expose flawed kernel code which does not follow the intended procedures for accessing user space memory.

Supervisor Mode Access Prevention