Merge tag 'hardening-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull hardening updates from Kees Cook:
 "The bulk of the changes here are related to refactoring and expanding
  the KUnit tests for string helper and fortify behavior.

  Some trivial strncpy replacements in fs/ were carried in my tree. Also
  some fixes to SCSI string handling were carried in my tree since the
  helper for those was introduce here. Beyond that, just little fixes
  all around: objtool getting confused about LKDTM+KCFI, preparing for
  future refactors (constification of sysctl tables, additional
  __counted_by annotations), a Clang UBSAN+i386 crash fix, and adding
  more options in the hardening.config Kconfig fragment.

  Summary:

   - selftests: Add str*cmp tests (Ivan Orlov)

   - __counted_by: provide UAPI for _le/_be variants (Erick Archer)

   - Various strncpy deprecation refactors (Justin Stitt)

   - stackleak: Use a copy of soon-to-be-const sysctl table (Thomas
     Weißschuh)

   - UBSAN: Work around i386 -regparm=3 bug with Clang prior to
     version 19

   - Provide helper to deal with non-NUL-terminated string copying

   - SCSI: Fix older string copying bugs (with new helper)

   - selftests: Consolidate string helper behavioral tests

   - selftests: add memcpy() fortify tests

   - string: Add additional __realloc_size() annotations for "dup"
     helpers

   - LKDTM: Fix KCFI+rodata+objtool confusion

   - hardening.config: Enable KCFI"

* tag 'hardening-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: (29 commits)
  uapi: stddef.h: Provide UAPI macros for __counted_by_{le, be}
  stackleak: Use a copy of the ctl_table argument
  string: Add additional __realloc_size() annotations for "dup" helpers
  kunit/fortify: Fix replaced failure path to unbreak __alloc_size
  hardening: Enable KCFI and some other options
  lkdtm: Disable CFI checking for perms functions
  kunit/fortify: Add memcpy() tests
  kunit/fortify: Do not spam logs with fortify WARNs
  kunit/fortify: Rename tests to use recommended conventions
  init: replace deprecated strncpy with strscpy_pad
  kunit/fortify: Fix mismatched kvalloc()/vfree() usage
  scsi: qla2xxx: Avoid possible run-time warning with long model_num
  scsi: mpi3mr: Avoid possible run-time warning with long manufacturer strings
  scsi: mptfusion: Avoid possible run-time warning with long manufacturer strings
  fs: ecryptfs: replace deprecated strncpy with strscpy
  hfsplus: refactor copy_name to not use strncpy
  reiserfs: replace deprecated strncpy with scnprintf
  virt: acrn: replace deprecated strncpy with strscpy
  ubsan: Avoid i386 UBSAN handler crashes with Clang
  ubsan: Remove 1-element array usage in debug reporting
  ...

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