kernel_optimize_test/security
Kees Cook eaafc59005 fortify: Explicitly disable Clang support
commit a52f8a59aef46b59753e583bf4b28fccb069ce64 upstream.

Clang has never correctly compiled the FORTIFY_SOURCE defenses due to
a couple bugs:

	Eliding inlines with matching __builtin_* names
	https://bugs.llvm.org/show_bug.cgi?id=50322

	Incorrect __builtin_constant_p() of some globals
	https://bugs.llvm.org/show_bug.cgi?id=41459

In the process of making improvements to the FORTIFY_SOURCE defenses, the
first (silent) bug (coincidentally) becomes worked around, but exposes
the latter which breaks the build. As such, Clang must not be used with
CONFIG_FORTIFY_SOURCE until at least latter bug is fixed (in Clang 13),
and the fortify routines have been rearranged.

Update the Kconfig to reflect the reality of the current situation.

Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Nick Desaulniers <ndesaulniers@google.com>
Link: https://lore.kernel.org/lkml/CAKwvOd=A+ueGV2ihdy5GtgR2fQbcXjjAtVxv3=cPjffpebZB7A@mail.gmail.com
Cc: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-11-21 13:46:35 +01:00
..
apparmor apparmor: fix error check 2021-11-18 14:04:22 +01:00
bpf bpf: Implement bpf_local_storage for inodes 2020-08-25 15:00:04 -07:00
integrity evm: mark evm_fixmode as __ro_after_init 2021-11-18 14:03:46 +01:00
keys KEYS: trusted: Fix memory leak on object td 2021-05-19 10:12:50 +02:00
loadpin LSM: Add "contents" flag to kernel_read_file hook 2020-10-05 13:37:03 +02:00
lockdown Merge branch 'next-general' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 2020-06-02 17:36:24 -07:00
safesetid LSM: SafeSetID: Fix warnings reported by test bot 2020-10-13 09:17:36 -07:00
selinux selinux: fix race condition when computing ocontext SIDs 2021-11-18 14:03:44 +01:00
smack smackfs: use netlbl_cfg_cipsov4_del() for deleting cipso_v4_doi 2021-11-18 14:04:10 +01:00
tomoyo tomoyo: recognize kernel threads correctly 2021-03-09 11:11:15 +01:00
yama task_work: cleanup notification modes 2020-10-17 15:05:30 -06:00
commoncap.c security: commoncap: fix -Wstringop-overread warning 2021-05-11 14:47:36 +02:00
device_cgroup.c device_cgroup: Fix RCU list debugging warning 2020-08-20 11:25:03 -07:00
inode.c
Kconfig fortify: Explicitly disable Clang support 2021-11-21 13:46:35 +01:00
Kconfig.hardening security: allow using Clang's zero initialization for stack variables 2020-06-16 02:06:23 -07:00
lsm_audit.c dump_common_audit_data(): fix racy accesses to ->d_name 2021-01-19 18:27:29 +01:00
Makefile
min_addr.c
security.c binder: use cred instead of task for selinux checks 2021-11-18 14:03:36 +01:00