From: Tomas Mraz <tomas@openssl.org>
Date: Mon, 14 Nov 2022 18:31:17 +0000 (+0100)
Subject: gcm_get_funcs(): Add missing fallback for ghash on x86_64
X-Git-Tag: openssl-3.2.0-alpha1~1726
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=be0161ff100bf10c9549fc09ce4513681011da1c;p=thirdparty%2Fopenssl.git

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)
---

diff --git a/crypto/modes/gcm128.c b/crypto/modes/gcm128.c
index 9a9adc9df86..0b31e671f0a 100644
--- a/crypto/modes/gcm128.c
+++ b/crypto/modes/gcm128.c
@@ -457,6 +457,11 @@ 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 */