kernel/linux.git/arch/csky/include/asm/stackprotector.h, branch linux-5.9.yLinux kernel stable tree (mirror)https://git.radix-linux.su/kernel/linux.git/atom?h=linux-5.9.y2020-02-21T07:43:24+00:00csky: Initial stack protector support2020-02-21T07:43:24+00:00Mao Hanhan_mao@c-sky.com2019-10-11T02:56:55+00:00urn:sha1:2f78c73f78c39dabc5c44ad8dd61fd6ec65636d6
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>