From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754832AbdDDQPJ (ORCPT ); Tue, 4 Apr 2017 12:15:09 -0400 Received: from 8bytes.org ([81.169.241.247]:33412 "EHLO theia.8bytes.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754608AbdDDQPI (ORCPT ); Tue, 4 Apr 2017 12:15:08 -0400 From: Joerg Roedel To: Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" Cc: x86@kernel.org, Dmitry Safonov <0x7f454c46@gmail.com>, Dave Hansen , Joerg Roedel , linux-kernel@vger.kernel.org, Borislav Petkov Subject: [PATCH] x86/signals: Fix lower/upper bound reporting in compat siginfo Date: Tue, 4 Apr 2017 18:15:01 +0200 Message-Id: <1491322501-5054-1-git-send-email-joro@8bytes.org> X-Mailer: git-send-email 1.9.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Joerg Roedel Put the right values from the original siginfo into the userspace compat-siginfo. This fixes the 32-bit mpx tabletest on a 64-bit kernel. Fixes: a4455082dc6f0 ('x86/signals: Add missing signal_compat code for x86 features') Cc: Dave Hansen Signed-off-by: Joerg Roedel --- arch/x86/kernel/signal_compat.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/x86/kernel/signal_compat.c b/arch/x86/kernel/signal_compat.c index ec1f756..71beb28 100644 --- a/arch/x86/kernel/signal_compat.c +++ b/arch/x86/kernel/signal_compat.c @@ -151,8 +151,8 @@ int __copy_siginfo_to_user32(compat_siginfo_t __user *to, const siginfo_t *from, if (from->si_signo == SIGSEGV) { if (from->si_code == SEGV_BNDERR) { - compat_uptr_t lower = (unsigned long)&to->si_lower; - compat_uptr_t upper = (unsigned long)&to->si_upper; + compat_uptr_t lower = (unsigned long)from->si_lower; + compat_uptr_t upper = (unsigned long)from->si_upper; put_user_ex(lower, &to->si_lower); put_user_ex(upper, &to->si_upper); } -- 1.9.1