Initialize dstctx->mgf1_md to NULL in rsa_dupctx function

Signed-off-by: lan1120 <lanming@huawei.com>
Reviewed-by: Todd Short <todd.short@me.com>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/22795)

(cherry picked from commit f95e3a09173b13dcfae668be6103e64c02222f08)

diff --git a/providers/implementations/signature/rsa_sig.c b/providers/implementations/signature/rsa_sig.c
index cd5de6bd5183bf7b1ecbed9dc62aab080335ec90..5876158d27e1934c28037b51574f3f8dc812dc1e 100644 (file)
--- a/providers/implementations/signature/rsa_sig.c
+++ b/providers/implementations/signature/rsa_sig.c
@@ -1011,6 +1011,7 @@ static void *rsa_dupctx(void *vprsactx)
     *dstctx = *srcctx;
     dstctx->rsa = NULL;
     dstctx->md = NULL;
+    dstctx->mgf1_md = NULL;
     dstctx->mdctx = NULL;
     dstctx->tbuf = NULL;
     dstctx->propq = NULL;