Merge tag 'hardening-v6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull hardening updates from Kees Cook:

 - Update overflow helpers to ease refactoring of on-stack flex array
   instances (Gustavo A. R. Silva, Kees Cook)

 - lkdtm: Use SLAB_NO_MERGE instead of constructors (Harry Yoo)

 - Simplify CONFIG_CC_HAS_COUNTED_BY (Jan Hendrik Farr)

 - Disable u64 usercopy KUnit test on 32-bit SPARC (Thomas Weißschuh)

 - Add missed designated initializers now exposed by fixed randstruct
   (Nathan Chancellor, Kees Cook)

 - Document compilers versions for __builtin_dynamic_object_size

 - Remove ARM_SSP_PER_TASK GCC plugin

 - Fix GCC plugin randstruct, add selftests, and restore COMPILE_TEST
   builds

 - Kbuild: induce full rebuilds when dependencies change with GCC
   plugins, the Clang sanitizer .scl file, or the randstruct seed.

 - Kbuild: Switch from -Wvla to -Wvla-larger-than=1

 - Correct several __nonstring uses for -Wunterminated-string-initialization

* tag 'hardening-v6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: (23 commits)
  Revert "hardening: Disable GCC randstruct for COMPILE_TEST"
  lib/tests: randstruct: Add deep function pointer layout test
  lib/tests: Add randstruct KUnit test
  randstruct: gcc-plugin: Remove bogus void member
  net: qede: Initialize qede_ll_ops with designated initializer
  scsi: qedf: Use designated initializer for struct qed_fcoe_cb_ops
  md/bcache: Mark __nonstring look-up table
  integer-wrap: Force full rebuild when .scl file changes
  randstruct: Force full rebuild when seed changes
  gcc-plugins: Force full rebuild when plugins change
  kbuild: Switch from -Wvla to -Wvla-larger-than=1
  hardening: simplify CONFIG_CC_HAS_COUNTED_BY
  overflow: Fix direct struct member initialization in _DEFINE_FLEX()
  kunit/overflow: Add tests for STACK_FLEX_ARRAY_SIZE() helper
  overflow: Add STACK_FLEX_ARRAY_SIZE() helper
  input/joystick: magellan: Mark __nonstring look-up table const
  watchdog: exar: Shorten identity name to fit correctly
  mod_devicetable: Enlarge the maximum platform_device_id name length
  overflow: Clarify expectations for getting DEFINE_FLEX variable sizes
  compiler_types: Identify compiler versions for __builtin_dynamic_object_size
  ...

1 files changed, 5 insertions, 0 deletions

diff --git a/scripts/basic/Makefile b/scripts/basic/Makefile
index dd289a6725ac..fb8e2c38fbc7 100644
--- a/scripts/basic/Makefile
+++ b/scripts/basic/Makefile
@@ -14,3 +14,8 @@ cmd_create_randstruct_seed = \
 $(obj)/randstruct.seed: $(gen-randstruct-seed) FORCE
 	$(call if_changed,create_randstruct_seed)
 always-$(CONFIG_RANDSTRUCT) += randstruct.seed
+
+# integer-wrap: if the .scl file changes, we need to do a full rebuild.
+$(obj)/../../include/generated/integer-wrap.h: $(srctree)/scripts/integer-wrap-ignore.scl FORCE
+	$(call if_changed,touch)
+always-$(CONFIG_UBSAN_INTEGER_WRAP) += ../../include/generated/integer-wrap.h