[PATCH 3.19 v2 0/3] x86, mpx: Instruction decoder fixes and hardening

From: Andy Lutomirski
Date: Mon Jan 12 2015 - 18:04:21 EST


Hi all-

Sorry, this is later than I had hoped to send this. This series has
three minor fixes for mpx and the instruction decoder.

Changes from v1:
- Dropped the TIF_IA32 change -- let's defer that until at least 3.20.
- Fixed the MPX decode short-circuit. v1 was buggy.
- Patch 3 is new. It fixes a minor regression from the MPX work.

Andy Lutomirski (3):
x86: Fix off-by-one in the instruction decoder length checks
x86, mpx: Short-circuit the instruction decoder for unexpected opcodes
x86: Enforce MAX_INSN_SIZE in the instruction decoder

arch/x86/lib/insn.c | 9 ++++++++-
arch/x86/mm/mpx.c | 25 ++++++++++++++++---------
2 files changed, 24 insertions(+), 10 deletions(-)

--
2.1.0

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