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Date: Thu, 27 Feb 2020 11:35:10 -0800
From: Kees Cook <>
To: Andrew Morton <>
Cc: Kees Cook <>,
	Andrey Ryabinin <>,
	Elena Petrova <>,
	Andrey Konovalov <>,
	Alexander Potapenko <>,
	Dan Carpenter <>,
	"Gustavo A. R. Silva" <>,
	Arnd Bergmann <>,
	Ard Biesheuvel <>,,,,,
Subject: [PATCH v5 0/6] ubsan: Split out bounds checker

Argh, v4 missed uncommitted changes. v5 brown paper bag release! :)

This splits out the bounds checker so it can be individually used. This
is enabled in Android and hopefully for syzbot. Includes LKDTM tests for
behavioral corner-cases (beyond just the bounds checker), and adjusts
ubsan and kasan slightly for correct panic handling.


 - _actually_ use hyphenated bug class names (andreyknvl)

Kees Cook (6):
  ubsan: Add trap instrumentation option
  ubsan: Split "bounds" checker from other options
  lkdtm/bugs: Add arithmetic overflow and array bounds checks
  ubsan: Check panic_on_warn
  kasan: Unset panic_on_warn before calling panic()
  ubsan: Include bug type in report header

 drivers/misc/lkdtm/bugs.c  | 75 ++++++++++++++++++++++++++++++++++++++
 drivers/misc/lkdtm/core.c  |  3 ++
 drivers/misc/lkdtm/lkdtm.h |  3 ++
 lib/Kconfig.ubsan          | 49 +++++++++++++++++++++----
 lib/Makefile               |  2 +
 lib/ubsan.c                | 47 +++++++++++++-----------
 mm/kasan/report.c          | 10 ++++-
 scripts/Makefile.ubsan     | 16 ++++++--
 8 files changed, 172 insertions(+), 33 deletions(-)


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