[GIT PULL] hardening fixes for v6.15-rc3

[Kees Cook <kees@kernel.org>]

Hi Linus,

Please pull this collection of various hardening fixes for v6.15-rc3.
The one "out of place" patch here is for the prime numbers self test,
but I took that since I had carried the lib/ -> lib/tests/ move tree
this cycle.

Thanks!

-Kees

The following changes since commit 8ffd015db85fea3e15a77027fda6c02ced4d2444:

  Linux 6.15-rc2 (2025-04-13 11:54:49 -0700)

are available in the Git repository at:

  https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git tags/hardening-v6.15-rc3

for you to fetch changes up to 3f2925174f8bd811f9399cb4049f6b75fd2fba91:

  lib/prime_numbers: KUnit test should not select PRIME_NUMBERS (2025-04-15 13:50:43 -0700)

----------------------------------------------------------------
hardening fixes for v6.15-rc3

- lib/prime_numbers: KUnit test should not select PRIME_NUMBERS
  (Geert Uytterhoeven)

- ubsan: Fix panic from test_ubsan_out_of_bounds (Mostafa Saleh)

- ubsan: Remove 'default UBSAN' from UBSAN_INTEGER_WRAP (Nathan Chancellor)

- string: Add load_unaligned_zeropad() code path to sized_strscpy()
  (Peter Collingbourne)

- kasan: Add strscpy() test to trigger tag fault on arm64 (Vincenzo
  Frascino)

- Disable GCC randstruct for COMPILE_TEST

----------------------------------------------------------------
Geert Uytterhoeven (1):
      lib/prime_numbers: KUnit test should not select PRIME_NUMBERS

Kees Cook (1):
      hardening: Disable GCC randstruct for COMPILE_TEST

Mostafa Saleh (1):
      ubsan: Fix panic from test_ubsan_out_of_bounds

Nathan Chancellor (1):
      lib/Kconfig.ubsan: Remove 'default UBSAN' from UBSAN_INTEGER_WRAP

Peter Collingbourne (1):
      string: Add load_unaligned_zeropad() code path to sized_strscpy()

Vincenzo Frascino (1):
      kasan: Add strscpy() test to trigger tag fault on arm64

 lib/Kconfig.debug                  |  2 +-
 lib/Kconfig.ubsan                  |  1 -
 lib/string.c                       | 13 ++++++++++---
 lib/test_ubsan.c                   | 18 +++++++++++-------
 mm/kasan/kasan_test_c.c            | 20 ++++++++++++++++++++
 security/Kconfig.hardening         |  2 +-
 tools/testing/selftests/lib/config |  1 +
 7 files changed, 44 insertions(+), 13 deletions(-)

-- 
Kees Cook