From 74bfc163f10e01dda74aada66039ddec13d96d2f Mon Sep 17 00:00:00 2001
From: Tomas Mraz <tomas@openssl.org>
Date: Mon, 14 Nov 2022 19:31:17 +0100
Subject: gcm_get_funcs(): Add missing fallback for ghash on x86_64

Fixes #19673

Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19674)

(cherry picked from commit be0161ff100bf10c9549fc09ce4513681011da1c)
---
 crypto/modes/gcm128.c | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'crypto')

diff --git a/crypto/modes/gcm128.c b/crypto/modes/gcm128.c
index 8af79e8726..39994eeb95 100644
--- a/crypto/modes/gcm128.c
+++ b/crypto/modes/gcm128.c
@@ -453,6 +453,11 @@ static void gcm_get_funcs(struct gcm_funcs_st *ctx)
     ctx->gmult = gcm_gmult_4bit_x86;
     ctx->ghash = gcm_ghash_4bit_x86;
     return;
+# else
+    /* x86_64 fallback defaults */
+    ctx->gmult = gcm_gmult_4bit;
+    ctx->ghash = gcm_ghash_4bit;
+    return;
 # endif
 #elif defined(GHASH_ASM_ARM)
     /* ARM defaults */
-- 
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