From 20133754d46fe42dac8a56f590ea742645e6ba64 Mon Sep 17 00:00:00 2001 From: Alice Ryhl Date: Thu, 9 Jul 2026 19:59:43 +0200 Subject: [PATCH] rust: kasan: KASAN+RUST requires clang [ Upstream commit 5b271543d0f08e9733d4732721e960e285f6448f ] Kernel KASAN involves passing various llvm/gcc specific arguments to the C and Rust compiler. Since these arguments differ between llvm and gcc, it's not safe to mix an llvm-based rustc with a gcc build when kasan is enabled. Signed-off-by: Alice Ryhl Reviewed-by: Gary Guo Cc: stable@vger.kernel.org Fixes: e3117404b411 ("kbuild: rust: Enable KASAN support") Link: https://patch.msgid.link/20260408-kasan-rust-sw-tags-v3-1-e07964d14363@google.com Signed-off-by: Miguel Ojeda Signed-off-by: Sasha Levin --- init/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/init/Kconfig b/init/Kconfig index cab3ad28ca49..0c25e78e10f4 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -2096,6 +2096,7 @@ config RUST depends on !CFI || HAVE_CFI_ICALL_NORMALIZE_INTEGERS_RUSTC select CFI_ICALL_NORMALIZE_INTEGERS if CFI depends on !CALL_PADDING || RUSTC_VERSION >= 108100 + depends on !KASAN || CC_IS_CLANG depends on !KASAN_SW_TAGS depends on !(MITIGATION_RETHUNK && KASAN) || RUSTC_VERSION >= 108300 help