linux/init
Alice Ryhl 5e5a29bd54 rust: SHADOW_CALL_STACK is incompatible with Rust
commit f126745da8 upstream.

When using the shadow call stack sanitizer, all code must be compiled
with the -ffixed-x18 flag, but this flag is not currently being passed
to Rust. This results in crashes that are extremely difficult to debug.

To ensure that nobody else has to go through the same debugging session
that I had to, prevent configurations that enable both SHADOW_CALL_STACK
and RUST.

It is rather common for people to backport 724a75ac95 ("arm64: rust:
Enable Rust support for AArch64"), so I recommend applying this fix all
the way back to 6.1.

Cc: stable@vger.kernel.org # 6.1 and later
Fixes: 724a75ac95 ("arm64: rust: Enable Rust support for AArch64")
Signed-off-by: Alice Ryhl <aliceryhl@google.com>
Acked-by: Miguel Ojeda <ojeda@kernel.org>
Link: https://lore.kernel.org/r/20240729-shadow-call-stack-v4-1-2a664b082ea4@google.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-08-11 12:47:24 +02:00
..
.gitignore kbuild: build init/built-in.a just once 2022-09-29 04:40:15 +09:00
build-version kbuild: build init/built-in.a just once 2022-09-29 04:40:15 +09:00
calibrate.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
do_mounts_initrd.c init: pass root_device_name explicitly 2023-06-05 10:55:20 -06:00
do_mounts_rd.c init: add an init_unlink helper 2020-07-31 08:17:52 +02:00
do_mounts.c rootfs: Fix support for rootfstype= when root= is given 2024-01-25 15:35:46 -08:00
do_mounts.h init: pass root_device_name explicitly 2023-06-05 10:55:20 -06:00
init_task.c rcu-tasks: Add data structures for lightweight grace periods 2022-06-20 09:22:28 -07:00
initramfs.c init: open /initrd.image with O_LARGEFILE 2024-04-03 15:28:53 +02:00
Kconfig rust: SHADOW_CALL_STACK is incompatible with Rust 2024-08-11 12:47:24 +02:00
main.c smp: Provide 'setup_max_cpus' definition on UP too 2024-06-16 13:47:49 +02:00
Makefile x86/retpoline: Make sure there are no unconverted return thunks due to KCSAN 2023-11-28 17:19:36 +00:00
noinitramfs.c init: move usermodehelper_enable() to populate_rootfs() 2021-09-08 11:50:27 -07:00
version-timestamp.c init/version-timestamp.c: remove unneeded #include <linux/version.h> 2023-01-09 07:34:38 +09:00
version.c init/version.c: remove #include <generated/utsrelease.h> 2022-12-10 10:33:20 +09:00