linux-kernel - [PATCH 0/3] [RFC] X32: fix syscall_get

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Date:	Thu, 10 Jul 2014 23:38:11 -0400
From:	Richard Guy Briggs <rgb@...hat.com>
To:	linux-audit@...hat.com, linux-kernel@...r.kernel.org
Cc:	Richard Guy Briggs <rgb@...hat.com>,
	Paul Moore <pmoore@...hat.com>, Eric Paris <eparis@...hat.com>,
	Al Viro <aviro@...hat.com>, Will Drewry <wad@...omium.org>,
	"H. Peter Anvin" <hpa@...or.com>
Subject: [PATCH 0/3] [RFC] X32: fix syscall_get_nr while not breaking seccomp BPF

This set reverts commit 8b4b9f2 which broke audit and potentially other users
of syscall_get_nr() which depend on that call as named without being overloaded
by architecture bits.  It will satisfy other regular users of syscall_get_nr()
and syscall_get_arch() without changing the seccomp interface to BPF.

A new ARCH definition, AUDIT_ARCH_X86_X32, was added for syscall_get_arch().

Cc: Paul Moore <pmoore@...hat.com>
Cc: Eric Paris <eparis@...hat.com>
Cc: Al Viro <aviro@...hat.com>
Cc: Will Drewry <wad@...omium.org>
Cc: H. Peter Anvin <hpa@...or.com>
Signed-off-by: Richard Guy Briggs <rgb@...hat.com>
Link: http://lkml.kernel.org/r/cover.1405023592.git.rgb@redhat.com

Richard Guy Briggs (3):
  audit: add AUDIT_ARCH_X86_X32 arch definition
  seccomp: give BPF x32 bit when restoring x32 filter
  Revert "x86: remove the x32 syscall bitmask from syscall_get_nr()"

 arch/x86/include/asm/syscall.h |    8 ++++++--
 include/uapi/linux/audit.h     |    1 +
 kernel/seccomp.c               |    6 ++++++
 3 files changed, 13 insertions(+), 2 deletions(-)

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