+++ Eddie Kovsky [05/04/17 21:35 -0600]:
Implement a mechanism to check if a module's address is in the rodata or ro_after_init sections. It mimics the existing functions that test if an address is inside a module's text section.Functions that take a module as an argument will be able to verify that the module address is in a read-only section. The idea is to prevent structures (including modules) that are not read-only from being passed to functions. This implements the first half of a suggestion made by Kees Cook for the Kernel Self Protection Project: - provide mechanism to check for ro_after_init memory areas, and reject structures not marked ro_after_init in vmbus_register() Suggested-by: Kees Cook <[email protected]> Signed-off-by: Eddie Kovsky <[email protected]>
Acked-by: Jessica Yu <[email protected]>
