Kees Cook eba5cbf2cc kunit/fortify: Add back "volatile" for sizeof() constants ...

[ Upstream commit 10299c07c9 ]

It seems the Clang can see through OPTIMIZER_HIDE_VAR when the constant
is coming from sizeof. Adding "volatile" back to these variables solves
this false positive without reintroducing the issues that originally led
to switching to OPTIMIZER_HIDE_VAR in the first place[1].

Reported-by: Nathan Chancellor <nathan@kernel.org>
Closes: https://github.com/ClangBuiltLinux/linux/issues/2075 [1]
Cc: Jannik Glückert <jannik.glueckert@gmail.com>
Suggested-by: Nathan Chancellor <nathan@kernel.org>
Fixes: 6ee149f61b ("kunit/fortify: Replace "volatile" with OPTIMIZER_HIDE_VAR()")
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/r/20250628234034.work.800-kees@kernel.org
Signed-off-by: Kees Cook <kees@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2025-08-15 16:38:22 +02:00

..

module

tests/module: nix-ify

2025-03-10 11:54:13 +01:00

bitfield_kunit.c

lib: Move KUnit tests into tests/ subdirectory

2025-02-10 18:25:39 -08:00

blackhole_dev_kunit.c

Merge tag 'net-next-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

2025-03-26 21:48:21 -07:00

checksum_kunit.c

lib: Move KUnit tests into tests/ subdirectory

2025-02-10 18:25:39 -08:00

cmdline_kunit.c

lib: Move KUnit tests into tests/ subdirectory

2025-02-10 18:25:39 -08:00

cpumask_kunit.c

lib: Move KUnit tests into tests/ subdirectory

2025-02-10 18:25:39 -08:00

crc_kunit.c

lib/crc32: remove unused support for CRC32C combination

2025-05-21 15:40:17 -07:00

fortify_kunit.c

kunit/fortify: Add back "volatile" for sizeof() constants

2025-08-15 16:38:22 +02:00

hashtable_test.c

lib: Move KUnit tests into tests/ subdirectory

2025-02-10 18:25:39 -08:00

is_signed_type_kunit.c

lib: Move KUnit tests into tests/ subdirectory

2025-02-10 18:25:39 -08:00

kfifo_kunit.c

lib/tests/kfifo_kunit.c: add tests for the kfifo structure

2025-02-10 18:25:39 -08:00

kunit_iov_iter.c

lib: Move KUnit tests into tests/ subdirectory

2025-02-10 18:25:39 -08:00

list-test.c

lib: Move KUnit tests into tests/ subdirectory

2025-02-10 18:25:39 -08:00

longest_symbol_kunit.c

Merge tag 'linux_kselftest-kunit-6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

2025-03-27 19:06:07 -07:00

Makefile

lib/tests: Add randstruct KUnit test

2025-05-08 09:42:40 -07:00

memcpy_kunit.c

lib: Move KUnit tests into tests/ subdirectory

2025-02-10 18:25:39 -08:00

overflow_kunit.c

kunit/overflow: Add tests for STACK_FLEX_ARRAY_SIZE() helper

2025-05-08 09:42:05 -07:00

printf_kunit.c

vsprintf: Use %p4chR instead of %p4cn for reading data in reversed host ordering

2025-04-29 09:29:33 -04:00

randstruct_kunit.c

lib/tests: randstruct: Add deep function pointer layout test

2025-05-08 09:42:40 -07:00

scanf_kunit.c

scanf: break kunit into test cases

2025-03-14 13:56:15 -07:00

siphash_kunit.c

lib: Move KUnit tests into tests/ subdirectory

2025-02-10 18:25:39 -08:00

slub_kunit.c

kunit: slub: add module description

2025-04-11 17:32:39 -07:00

stackinit_kunit.c

Kbuild: remove structleak gcc plugin

2025-04-30 21:57:09 +02:00

string_helpers_kunit.c

lib: Move KUnit tests into tests/ subdirectory

2025-02-10 18:25:39 -08:00

string_kunit.c

Merge tag 'hardening-v6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

2025-03-24 15:18:08 -07:00

test_bits.c

test_bits: add tests for BIT_U*()

2025-04-29 15:58:38 -04:00

test_fprobe.c

lib: Move KUnit tests into tests/ subdirectory

2025-02-10 18:25:39 -08:00

test_hash.c

lib: Move KUnit tests into tests/ subdirectory

2025-02-10 18:25:39 -08:00

test_kprobes.c

lib: Move KUnit tests into tests/ subdirectory

2025-02-10 18:25:39 -08:00

test_linear_ranges.c

lib: Move KUnit tests into tests/ subdirectory

2025-02-10 18:25:39 -08:00

test_list_sort.c

lib: Move KUnit tests into tests/ subdirectory

2025-02-10 18:25:39 -08:00

test_sort.c

lib: Move KUnit tests into tests/ subdirectory

2025-02-10 18:25:39 -08:00

usercopy_kunit.c

kunit/usercopy: Disable u64 test on 32-bit SPARC

2025-04-28 10:32:43 -07:00

util_macros_kunit.c

lib: Move KUnit tests into tests/ subdirectory

2025-02-10 18:25:39 -08:00