From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:45402 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753777AbdAZPkS (ORCPT ); Thu, 26 Jan 2017 10:40:18 -0500 Subject: Patch "tile/ptrace: Preserve previous registers for short regset write" has been added to the 4.4-stable tree To: Dave.Martin@arm.com, cmetcalf@mellanox.com, gregkh@linuxfoundation.org Cc: , From: Date: Thu, 26 Jan 2017 16:40:20 +0100 Message-ID: <1485445220115138@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled tile/ptrace: Preserve previous registers for short regset write to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: tile-ptrace-preserve-previous-registers-for-short-regset-write.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From fd7c99142d77dc4a851879a66715abf12a3193fb Mon Sep 17 00:00:00 2001 From: Dave Martin Date: Fri, 6 Jan 2017 17:54:51 +0000 Subject: tile/ptrace: Preserve previous registers for short regset write From: Dave Martin commit fd7c99142d77dc4a851879a66715abf12a3193fb upstream. Ensure that if userspace supplies insufficient data to PTRACE_SETREGSET to fill all the registers, the thread's old registers are preserved. Signed-off-by: Dave Martin Signed-off-by: Chris Metcalf Signed-off-by: Greg Kroah-Hartman --- arch/tile/kernel/ptrace.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/arch/tile/kernel/ptrace.c +++ b/arch/tile/kernel/ptrace.c @@ -111,7 +111,7 @@ static int tile_gpr_set(struct task_stru const void *kbuf, const void __user *ubuf) { int ret; - struct pt_regs regs; + struct pt_regs regs = *task_pt_regs(target); ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, ®s, 0, sizeof(regs)); Patches currently in stable-queue which might be from Dave.Martin@arm.com are queue-4.4/tile-ptrace-preserve-previous-registers-for-short-regset-write.patch