From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:43258 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933463AbdC3IMa (ORCPT ); Thu, 30 Mar 2017 04:12:30 -0400 Subject: Patch "metag/ptrace: Preserve previous registers for short regset write" has been added to the 4.4-stable tree To: Dave.Martin@arm.com, gregkh@linuxfoundation.org, james.hogan@imgtec.com, torvalds@linux-foundation.org Cc: , From: Date: Thu, 30 Mar 2017 10:11:59 +0200 Message-ID: <1490861519110165@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 metag/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: metag-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 a78ce80d2c9178351b34d78fec805140c29c193e Mon Sep 17 00:00:00 2001 From: Dave Martin Date: Mon, 27 Mar 2017 15:10:55 +0100 Subject: metag/ptrace: Preserve previous registers for short regset write From: Dave Martin commit a78ce80d2c9178351b34d78fec805140c29c193e 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 Acked-by: James Hogan Signed-off-by: Linus Torvalds Signed-off-by: Greg Kroah-Hartman --- arch/metag/kernel/ptrace.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/arch/metag/kernel/ptrace.c +++ b/arch/metag/kernel/ptrace.c @@ -303,7 +303,7 @@ static int metag_tls_set(struct task_str const void *kbuf, const void __user *ubuf) { int ret; - void __user *tls; + void __user *tls = target->thread.tls_ptr; ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, &tls, 0, -1); if (ret) Patches currently in stable-queue which might be from Dave.Martin@arm.com are queue-4.4/metag-ptrace-reject-partial-nt_metag_rpipe-writes.patch queue-4.4/metag-ptrace-preserve-previous-registers-for-short-regset-write.patch queue-4.4/metag-ptrace-provide-default-txstatus-for-short-nt_prstatus.patch queue-4.4/c6x-ptrace-remove-useless-ptrace_setregset-implementation.patch queue-4.4/mips-ptrace-preserve-previous-registers-for-short-regset-write.patch queue-4.4/h8300-ptrace-fix-incorrect-register-transfer-count.patch queue-4.4/sparc-ptrace-preserve-previous-registers-for-short-regset-write.patch