linux-kernel - [PATCH v2 0/2] UBSan: run-time undefined behavior sanity checker

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Message-id: <1415969446-26356-1-git-send-email-a.ryabinin@samsung.com>
Date:	Fri, 14 Nov 2014 15:50:44 +0300
From:	Andrey Ryabinin <a.ryabinin@...sung.com>
To:	linux-kernel@...r.kernel.org
Cc:	Andrey Ryabinin <a.ryabinin@...sung.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Sasha Levin <sasha.levin@...cle.com>,
	Randy Dunlap <rdunlap@...radead.org>,
	Rasmus Villemoes <linux@...musvillemoes.dk>,
	Jonathan Corbet <corbet@....net>,
	Michal Marek <mmarek@...e.cz>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	Yury Gribov <y.gribov@...sung.com>,
	Dmitry Vyukov <dvyukov@...gle.com>,
	Konstantin Khlebnikov <koct9i@...il.com>, x86@...nel.org,
	linux-doc@...r.kernel.org, linux-kbuild@...r.kernel.org
Subject: [PATCH v2 0/2] UBSan: run-time undefined behavior sanity checker

Next spin of UBSan and there are two patches from now.
"Two there should be; no more, no less. One to embody the UBSan,
the other to not deadlock it."

Patches on top of v3.18-rc4. As usual they are available in git:
	git://github.com/aryabinin/linux ubsan/v2

Changes since v1:
   - Refactoring and cleanups in lib/ubsan.c including Sasha's complains.
   - Some spelling fixes from Randy
   - Fixed possible memory corruption on 64 big endian machines, spotted by Rasmus.
   - Links to the relevant GCC documentation added into changelog (Peter).
   - Added documentation.
   - Fix deadlock caused by kernel/printk/printk.c instrumentation
        (patch "kernel: printk: specify alignment for struct printk_log").
   - Dropped useless 'Indirect call of a function through a function pointer of the wrong type'
     checker. GCC doesn't support this, and as clang manual says it's for C++ only.
   - Added checker for __builtin_unreachable() calls.
   - Removed redundant -fno-sanitize=float-cast-overflow from CFLAGS.
   - Added lock to prevent mixing reports.

Andrey Ryabinin (2):
  kernel: printk: specify alignment for struct printk_log
  UBSan: run-time undefined behavior sanity checker

 Documentation/ubsan.txt               |  69 +++++
 Makefile                              |  10 +-
 arch/x86/Kconfig                      |   1 +
 arch/x86/boot/Makefile                |   1 +
 arch/x86/boot/compressed/Makefile     |   1 +
 arch/x86/realmode/rm/Makefile         |   1 +
 arch/x86/vdso/Makefile                |   2 +
 drivers/firmware/efi/libstub/Makefile |   1 +
 include/linux/sched.h                 |   3 +
 kernel/printk/printk.c                |  10 +-
 lib/Kconfig.debug                     |  22 ++
 lib/Makefile                          |   3 +
 lib/ubsan.c                           | 567 ++++++++++++++++++++++++++++++++++
 lib/ubsan.h                           |  84 +++++
 scripts/Makefile.lib                  |   6 +
 15 files changed, 775 insertions(+), 6 deletions(-)
 create mode 100644 Documentation/ubsan.txt
 create mode 100644 lib/ubsan.c
 create mode 100644 lib/ubsan.h

-- 
2.1.3

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