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Date:	Fri, 18 Jul 2014 14:18:12 -0700
From:	Andy Lutomirski <>
To:, Kees Cook <>,
	Will Drewry <>
Cc:	Oleg Nesterov <>,,,,,,
	Alexei Starovoitov <>,,
	Andy Lutomirski <>
Subject: [PATCH v2 4/7] x86,x32,audit: Fix x32's AUDIT_ARCH wrt audit

is_compat_task() is the wrong check for audit arch; the check should
be is_ia32_task(): x32 syscalls should be AUDIT_ARCH_X86_64, not

CONFIG_AUDITSYSCALL is currently incompatible with x32, so this has
no visible effect.

Signed-off-by: Andy Lutomirski <>
 arch/x86/kernel/ptrace.c | 11 +----------
 1 file changed, 1 insertion(+), 10 deletions(-)

diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index 93c182a..39296d2 100644
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -1441,15 +1441,6 @@ void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs,
 	force_sig_info(SIGTRAP, &info, tsk);
-#ifdef CONFIG_X86_32
-# define IS_IA32	1
-#elif defined CONFIG_IA32_EMULATION
-# define IS_IA32	is_compat_task()
-# define IS_IA32	0
  * We must return the syscall number to actually look up in the table.
  * This can be -1L to skip running any syscall at all.
@@ -1487,7 +1478,7 @@ long syscall_trace_enter(struct pt_regs *regs)
 	if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
 		trace_sys_enter(regs, regs->orig_ax);
-	if (IS_IA32)
+	if (is_ia32_task())
 				    regs->bx, regs->cx,

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