commit bbe909d00e9a593bd5954dfca4d3020467977565
author Tomas Mraz <tomas@openssl.org> Thu Apr 21 17:33:26 2022 +0200
committer Pauli <pauli@openssl.org> Fri Apr 29 10:00:06 2022 +1000
tree c94d4cbe35cf1b2303b868a7397ce200af9ff2d5
parent ae2efd63c6fcd9b7e043692184762da19c5eb99b

poly1305: Properly copy the whole context on dup

Also reset the updated flag when Poly1305_Init is called.

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/18143)

providers/implementations/macs/poly1305_prov.c

diff --git a/providers/implementations/macs/poly1305_prov.c b/providers/implementations/macs/poly1305_prov.c
index ad67216..28789d2 100644
--- a/providers/implementations/macs/poly1305_prov.c
+++ b/providers/implementations/macs/poly1305_prov.c
@@ -65,11 +65,11 @@
 
     if (!ossl_prov_is_running())
         return NULL;
-    dst = poly1305_new(src->provctx);
+    dst = OPENSSL_malloc(sizeof(*dst));
     if (dst == NULL)
         return NULL;
 
-    dst->poly1305 = src->poly1305;
+    *dst = *src;
     return dst;
 }
 
@@ -86,6 +86,7 @@
         return 0;
     }
     Poly1305_Init(&ctx->poly1305, key);
+    ctx->updated = 0;
     return 1;
 }