From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:37277 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751415AbcBNV7g (ORCPT ); Sun, 14 Feb 2016 16:59:36 -0500 Subject: Patch "crypto: chacha20-ssse3 - Align stack pointer to 64 bytes" has been added to the 4.4-stable tree To: elicooper@gmx.com, gregkh@linuxfoundation.org, herbert@gondor.apana.org.au, martin@strongswan.org Cc: , From: Date: Sun, 14 Feb 2016 13:59:33 -0800 Message-ID: <145548717323897@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 crypto: chacha20-ssse3 - Align stack pointer to 64 bytes 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: crypto-chacha20-ssse3-align-stack-pointer-to-64-bytes.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 cbe09bd51bf23b42c3a94c5fb6815e1397c5fc3f Mon Sep 17 00:00:00 2001 From: Eli Cooper Date: Fri, 22 Jan 2016 00:24:08 +0800 Subject: crypto: chacha20-ssse3 - Align stack pointer to 64 bytes From: Eli Cooper commit cbe09bd51bf23b42c3a94c5fb6815e1397c5fc3f upstream. This aligns the stack pointer in chacha20_4block_xor_ssse3 to 64 bytes. Fixes general protection faults and potential kernel panics. Signed-off-by: Eli Cooper Acked-by: Martin Willi Signed-off-by: Herbert Xu Signed-off-by: Greg Kroah-Hartman --- arch/x86/crypto/chacha20-ssse3-x86_64.S | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) --- a/arch/x86/crypto/chacha20-ssse3-x86_64.S +++ b/arch/x86/crypto/chacha20-ssse3-x86_64.S @@ -157,7 +157,9 @@ ENTRY(chacha20_4block_xor_ssse3) # done with the slightly better performing SSSE3 byte shuffling, # 7/12-bit word rotation uses traditional shift+OR. - sub $0x40,%rsp + mov %rsp,%r11 + sub $0x80,%rsp + and $~63,%rsp # x0..15[0-3] = s0..3[0..3] movq 0x00(%rdi),%xmm1 @@ -620,6 +622,6 @@ ENTRY(chacha20_4block_xor_ssse3) pxor %xmm1,%xmm15 movdqu %xmm15,0xf0(%rsi) - add $0x40,%rsp + mov %r11,%rsp ret ENDPROC(chacha20_4block_xor_ssse3) Patches currently in stable-queue which might be from elicooper@gmx.com are queue-4.4/crypto-chacha20-ssse3-align-stack-pointer-to-64-bytes.patch