linux.git/arch/csky/include/asm/stackprotector.h, branch v6.0 Linux kernel source tree csky: Initial stack protector support 2020-02-21T07:43:24+00:00 Mao Han han_mao@c-sky.com 2019-10-11T02:56:55+00:00 2f78c73f78c39dabc5c44ad8dd61fd6ec65636d6 This is a basic -fstack-protector support without per-task canary switching. The protector will report something like when stack corruption is detected: It's tested with strcpy local array overflow in sys_kill and get: stack-protector: Kernel stack is corrupted in: sys_kill+0x23c/0x23c TODO: - Support task switch for different cannary Signed-off-by: Mao Han <han_mao@c-sky.com> Signed-off-by: Guo Ren <guoren@linux.alibaba.com> 
This is a basic -fstack-protector support without per-task canary
switching. The protector will report something like when stack
corruption is detected:

It's tested with strcpy local array overflow in sys_kill and get:
stack-protector: Kernel stack is corrupted in: sys_kill+0x23c/0x23c

TODO:
 - Support task switch for different cannary

Signed-off-by: Mao Han <han_mao@c-sky.com>
Signed-off-by: Guo Ren <guoren@linux.alibaba.com>