Re: (subset) [PATCH v3 1/2] AARCH64: Add gcc Shadow Call Stack support
From: Kees Cook <hidden>
Date: 2022-03-10 18:17:12
Also in:
linux-hardening, linux-kselftest, lkml, llvm
On Wed, 2 Mar 2022 23:43:23 -0800, Dan Li wrote:
Shadow call stacks will be available in GCC >= 12, this patch makes the corresponding kernel configuration available when compiling the kernel with the gcc. Note that the implementation in GCC is slightly different from Clang. With SCS enabled, functions will only pop x30 once in the epilogue, like: [...]
I'm taking this one now so it'll make the merge window. We can hammer
out the lkdtm test after that.
Applied to for-next/hardening, thanks!
[1/2] arm64: Add gcc Shadow Call Stack support
https://git.kernel.org/kees/c/afcf5441b9ff
--
Kees Cook
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