Re: [PATCH v13 0/2] arm64: Enable BTI for the executable as well as the interpreter

Kees Cook
2022-04-20T05:33:26Z

On Tue, 19 Apr 2022 11:51:54 +0100, Mark Brown wrote:
> Deployments of BTI on arm64 have run into issues interacting with
> systemd's MemoryDenyWriteExecute feature. Currently for dynamically
> linked executables the kernel will only handle architecture specific
> properties like BTI for the interpreter, the expectation is that the
> interpreter will then handle any properties on the main executable.
> For BTI this means remapping the executable segments PROT_EXEC |
> PROT_BTI.
>
> [...]

Applied to for-next/execve, thanks!

[1/2] elf: Allow architectures to parse properties on the main executable
https://git.kernel.org/kees/c/b2f2553c8e89
[2/2] arm64: Enable BTI for main executable as well as the interpreter
https://git.kernel.org/kees/c/b65c760600e2

--
Kees Cook