From: Andy Polyakov <appro@openssl.org>
Date: Mon, 20 Nov 2017 16:07:51 +0000 (+0100)
Subject: chacha/asm/chacha-x86_64.pl: fix sporadic crash in AVX512 code path.
X-Git-Tag: OpenSSL_1_1_1-pre1~411
X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff_plain;h=47c9926a92ce64a6f630ff71e71cfa4bc5c58315

chacha/asm/chacha-x86_64.pl: fix sporadic crash in AVX512 code path.

Only chacha_internal_test is affected, since this path is not used
from EVP.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4758)
---

diff --git a/crypto/chacha/asm/chacha-x86_64.pl b/crypto/chacha/asm/chacha-x86_64.pl
index 0cfe8990fa..0510363ad8 100755
--- a/crypto/chacha/asm/chacha-x86_64.pl
+++ b/crypto/chacha/asm/chacha-x86_64.pl
@@ -2488,7 +2488,7 @@ $code.=<<___;
 	dec		$len
 	jnz		.Loop_tail_avx512
 
-	vmovdqa32	$a_,0x00(%rsp)
+	vmovdqu32	$a_,0x00(%rsp)
 
 .Ldone_avx512:
 	vzeroall