linux-kernel - [GIT PULL] hardened usercopy fixes for v4.8-rc4

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Message-ID: <20160823022226.GA30705@www.outflux.net>
Date:   Mon, 22 Aug 2016 19:22:26 -0700
From:   Kees Cook <keescook@...omium.org>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     linux-kernel@...r.kernel.org, Eric Biggers <ebiggers@...gle.com>,
        Josh Poimboeuf <jpoimboe@...hat.com>
Subject: [GIT PULL] hardened usercopy fixes for v4.8-rc4

Hi,

Please pull these hardened usercopy fixes for v4.8-rc4.

Thanks!

-Kees

The following changes since commit ef0e1ea8856bed6ff8394d3dfe77f2cab487ecea:

  Merge tag 'arc-4.8-rc4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc (2016-08-22 17:53:02 -0500)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git tags/usercopy-v4.8-rc4

for you to fetch changes up to 94cd97af690dd9537818dc9841d0ec68bb1dd877:

  usercopy: fix overlap check for kernel text (2016-08-22 19:10:51 -0700)

----------------------------------------------------------------
Fixes for hardened usercopy:
- avoid signed math problems on unexpected compilers
- avoid false positives at very end of kernel text range checks

----------------------------------------------------------------
Eric Biggers (1):
      usercopy: avoid potentially undefined behavior in pointer math

Josh Poimboeuf (1):
      usercopy: fix overlap check for kernel text

 mm/usercopy.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

-- 
Kees Cook
Nexus Security