Provide a mechansim for other functions to verify that their arguments
are read-only. Use this mechansim in the vmbus register functions to
reject arguments that fail this test.
This implements 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()
http://www.openwall.com/lists/kernel-hardening/2017/02/04/1
I have successfully compiled this series on next-20170215 for x86.
Eddie Kovsky (3):
module: verify address is read-only
extable: verify address is read-only
Make vmbus register arguments read-only
drivers/hv/vmbus_drv.c | 10 ++++++++++
include/linux/kernel.h | 2 ++
include/linux/module.h | 7 +++++++
kernel/extable.c | 29 +++++++++++++++++++++++++++++
kernel/module.c | 44 ++++++++++++++++++++++++++++++++++++++++++++
5 files changed, 92 insertions(+)
--
2.11.1
