ndesaulniers@google.com 25e73018b4 start_kernel: Add __no_stack_protector function attribute ... commit 514ca14ed5 upstream. Back during the discussion of commit a9a3ed1eff ("x86: Fix early boot crash on gcc-10, third try") we discussed the need for a function attribute to control the omission of stack protectors on a per-function basis; at the time Clang had support for no_stack_protector but GCC did not. This was fixed in gcc-11. Now that the function attribute is available, let's start using it. Callers of boot_init_stack_canary need to use this function attribute unless they're compiled with -fno-stack-protector, otherwise the canary stored in the stack slot of the caller will differ upon the call to boot_init_stack_canary. This will lead to a call to __stack_chk_fail() then panic. Link: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94722 Link: https://lore.kernel.org/all/20200316130414.GC12561@hirez.programming.kicks-ass.net/ Tested-by: Nathan Chancellor <nathan@kernel.org> Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc) Acked-by: Miguel Ojeda <ojeda@kernel.org> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Nick Desaulniers <ndesaulniers@google.com> Link: https://lore.kernel.org/r/20230412-no_stackp-v2-1-116f9fe4bbe7@google.com Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: ndesaulniers@google.com <ndesaulniers@google.com>		2023-07-19 16:35:05 +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	freezer,umh: Clean up freezer/initrd interaction	2022-09-07 21:53:48 +02:00
do_mounts_rd.c	init: add an init_unlink helper	2020-07-31 08:17:52 +02:00
do_mounts.c	init: move from strlcpy with unused retval to strscpy	2022-09-11 21:55:10 -07:00
do_mounts.h	init: add an init_mknod helper	2020-07-31 08:17:54 +02:00
init_task.c	rcu-tasks: Add data structures for lightweight grace periods	2022-06-20 09:22:28 -07:00
initramfs.c	init/initramfs: Fix argument forwarding to panic() in panic_show_mem()	2023-04-16 17:37:01 +09:00
Kconfig	Driver core changes for 6.4-rc1	2023-04-27 11:53:57 -07:00
main.c	start_kernel: Add __no_stack_protector function attribute	2023-07-19 16:35:05 +02:00
Makefile	kbuild: Fix CFI hash randomization with KASAN	2023-01-13 15:22:03 -08:00
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