x32 + audit status?

[David Drysdale]

Hi,

Do we currently expect the audit system to work with x32 syscalls?

I was playing with the audit system for the first time today (on
v4.0-rc2, due to [1]), and it didn't seem to work for me.  (Tweaking
ptrace.c like the patch below seemed to help, but I may just have
configured something wrong.)

I know there was a bunch of activity around this area in mid-2014,
but I'm not sure what the final position was...

Thanks,
David

[1]: https://lkml.org/lkml/2015/3/4/879

diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index e510618b2e91..443932afd9e8 100644
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -1445,7 +1445,7 @@ static void do_audit_syscall_entry(struct
pt_regs *regs, u32 arch)
 {
 #ifdef CONFIG_X86_64
        if (arch == AUDIT_ARCH_X86_64) {
-               audit_syscall_entry(regs->orig_ax, regs->di,
+               audit_syscall_entry(regs->orig_ax & __SYSCALL_MASK, regs->di,
                                    regs->si, regs->dx, regs->r10);
        } else
 #endif