From: Conor Dooley conor.dooley@microchip.com
On RISC-V and arm64, and presumably x86, if CFI_CLANG is enabled, loading a rust module will trigger a kernel panic. Support for sanitisers, including kcfi (CFI_CLANG), is in the works, but for now they're nightly-only options in rustc. Make RUST depend on !CFI_CLANG to prevent configuring a kernel without symmetrical support for kfi.
Fixes: 2f7ab1267dc9 ("Kbuild: add Rust support") cc: stable@vger.kernel.org Signed-off-by: Conor Dooley conor.dooley@microchip.com --- Sending this one on its own, there's no explicit dep on this for the riscv enabling patch, v3 to continue the numbering from there. Nothing has changed since v2.
CC: Miguel Ojeda ojeda@kernel.org CC: Alex Gaynor alex.gaynor@gmail.com CC: Wedson Almeida Filho wedsonaf@gmail.com CC: linux-kernel@vger.kernel.org (open list) CC: rust-for-linux@vger.kernel.org CC: Sami Tolvanen samitolvanen@google.com CC: Kees Cook keescook@chromium.org CC: Nathan Chancellor nathan@kernel.org CC: llvm@lists.linux.dev --- init/Kconfig | 1 + 1 file changed, 1 insertion(+)
diff --git a/init/Kconfig b/init/Kconfig index aa02aec6aa7d..ad9a2da27dc9 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -1899,6 +1899,7 @@ config RUST bool "Rust support" depends on HAVE_RUST depends on RUST_IS_AVAILABLE + depends on !CFI_CLANG depends on !MODVERSIONS depends on !GCC_PLUGINS depends on !RANDSTRUCT