[PATCH] fix ia64 syscall auditing

Attached is a patch against David's audit.17 kernel that adds checks
for the TIF_SYSCALL_AUDIT thread flag to the ia64 system call and
signal handling code paths.The patch enables auditing of system
calls set up via fsys_bubble_down, as well as ensuring that
audit_syscall_exit() is called on return from sigreturn.

Neglecting to check for TIF_SYSCALL_AUDIT at these points results in
incorrect information in audit_context, causing frequent system panics
when system call auditing is enabled on an ia64 system.

Signed-off-by: Amy Griffis <amy.griffis@hp.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>

1 files changed, 3 insertions, 1 deletions

diff --git a/arch/ia64/kernel/fsys.S b/arch/ia64/kernel/fsys.S
index 0d8650f7fce7..4f3cdef75797 100644
--- a/arch/ia64/kernel/fsys.S
+++ b/arch/ia64/kernel/fsys.S
@@ -611,8 +611,10 @@ GLOBAL_ENTRY(fsys_bubble_down)
         movl r2=ia64_ret_from_syscall
         ;;
         mov rp=r2                               // set the real return addr
-        tbit.z p8,p0=r3,TIF_SYSCALL_TRACE
+        and r3=_TIF_SYSCALL_TRACEAUDIT,r3
         ;;
+        cmp.eq p8,p0=r3,r0
+
 (p10)   br.cond.spnt.many ia64_ret_from_syscall // p10==true means out registers are more than 8
 (p8)    br.call.sptk.many b6=b6         // ignore this return addr
         br.cond.sptk ia64_trace_syscall